TY - CPAPER T1 - Microbial degradation of methyl bromide in Mono Lake, California AN - 42283077; 3176454 AU - Connell, T L AU - Miller, L G AU - Oremland, R S AU - Joye, S B AU - Jahnke, L AU - Ward, B B Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42283077?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Microbial+degradation+of+methyl+bromide+in+Mono+Lake%2C+California&rft.au=Connell%2C+T+L%3BMiller%2C+L+G%3BOremland%2C+R+S%3BJoye%2C+S+B%3BJahnke%2C+L%3BWard%2C+B+B&rft.aulast=Connell&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Society of Limnology & Oceanography Business Office, PO Box 1897, Lawrence, KS 66044-8897, Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Basalts of Mount Adams volcanic field, Washington AN - 42279175; 3171334 AU - Hildreth, W AU - Fierstein, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42279175?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Basalts+of+Mount+Adams+volcanic+field%2C+Washington&rft.au=Hildreth%2C+W%3BFierstein%2C+J&rft.aulast=Hildreth&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Association of Canada--Pacific Section, c/o BC Geological Survey Branch, 1810 Blanchard Street, 5th Floor, Victoria, BC, Canada V8T 4J1, Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Geochemical and deformational constraints from the Yukon-Tanana upland, and implications for the origin and assembly of pericratonic and arc terranes in the northern Cordillera AN - 42278902; 3171229 AU - Dusel-Bacon, C AU - Cooper, K M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42278902?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Geochemical+and+deformational+constraints+from+the+Yukon-Tanana+upland%2C+and+implications+for+the+origin+and+assembly+of+pericratonic+and+arc+terranes+in+the+northern+Cordillera&rft.au=Dusel-Bacon%2C+C%3BCooper%2C+K+M&rft.aulast=Dusel-Bacon&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Association of Canada--Pacific Section, c/o BC Geological Survey Branch, 1810 Blanchard Street, 5th Floor, Victoria, BC, Canada V8T 4J1, Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - 5,000-yr Lake record of Cascadia tsunamis in South Coastal Oregon? AN - 42266747; 3171516 AU - Nelson, A R AU - Kelsey, H M AU - Hemphill-Haley, E AU - Witter, R C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42266747?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=5%2C000-yr+Lake+record+of+Cascadia+tsunamis+in+South+Coastal+Oregon%3F&rft.au=Nelson%2C+A+R%3BKelsey%2C+H+M%3BHemphill-Haley%2C+E%3BWitter%2C+R+C&rft.aulast=Nelson&rft.aufirst=A&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Association of Canada--Pacific Section, c/o BC Geological Survey Branch, 1810 Blanchard Street, 5th Floor, Victoria, BC, Canada V8T 4J1, Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Delineation of the two-layer flow systems in two shallow embayments of Barnegat Bay, New Jersey AN - 42235165; 3150057 AU - Hickman, E Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42235165?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Delineation+of+the+two-layer+flow+systems+in+two+shallow+embayments+of+Barnegat+Bay%2C+New+Jersey&rft.au=Hickman%2C+E&rft.aulast=Hickman&rft.aufirst=E&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: U.S. Environmental Protection Agency, Region III (3ES42), 841 Chestnut Building, Philadelphia, PA 19107, Abstracts available. Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Continuous on-site measurement of dissolved oxygen in the Trinity River Basin, Central Texas AN - 42221867; 3145114 AU - Baldys, S III AU - Carr, B J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42221867?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Continuous+on-site+measurement+of+dissolved+oxygen+in+the+Trinity+River+Basin%2C+Central+Texas&rft.au=Baldys%2C+S+III%3BCarr%2C+B+J&rft.aulast=Baldys&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: North American Lake Management Society, P.O. Box 5443, Madison, WI 53705-5443. Phone: (608) 233-2836; Fax (608) 233-3186., Abstracts available. Price $5. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Urban stormwater runoff effects on vernal pools at the Sacramento River National Wildlife Refuge, California AN - 42207342; 3140154 AU - Sefchick, JA AU - Schwarzbach, SE AU - Henderson, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42207342?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Urban+stormwater+runoff+effects+on+vernal+pools+at+the+Sacramento+River+National+Wildlife+Refuge%2C+California&rft.au=Sefchick%2C+JA%3BSchwarzbach%2C+SE%3BHenderson%2C+J&rft.aulast=Sefchick&rft.aufirst=JA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmental Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501-3307, USA, Abstracts available. Price $30 (includes shipping). Poster Paper No. MF03 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Relation of fish communities to physical and chemical variables at nine stream sites in the Platte River basin AN - 42204791; 3130402 AU - Swanson, R B AU - Frenzel, SA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42204791?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Relation+of+fish+communities+to+physical+and+chemical+variables+at+nine+stream+sites+in+the+Platte+River+basin&rft.au=Swanson%2C+R+B%3BFrenzel%2C+SA&rft.aulast=Swanson&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Water Resources Association, 950 Herndon Parkway, Suite 300, Herndon, VA 22070-5528, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Utilizing geographic information systems (GIS) with the Environmental Monitoring and Assessment Program - Estuaries (EMAP-E) for the Louisianian Province AN - 42197641; 3140364 AU - Bourgeois, P E AU - Robb, S AU - Summers, K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42197641?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Utilizing+geographic+information+systems+%28GIS%29+with+the+Environmental+Monitoring+and+Assessment+Program+-+Estuaries+%28EMAP-E%29+for+the+Louisianian+Province&rft.au=Bourgeois%2C+P+E%3BRobb%2C+S%3BSummers%2C+K&rft.aulast=Bourgeois&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmental Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501-3307, USA, Abstracts available. Price $30 (includes shipping). Poster Paper No. TF23 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Generalized attractiveness of Lycaeides melissa samuelis larvae to ants AN - 42164433; 3121954 AU - Savignano, DA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42164433?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Generalized+attractiveness+of+Lycaeides+melissa+samuelis+larvae+to+ants&rft.au=Savignano%2C+DA&rft.aulast=Savignano&rft.aufirst=DA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Institute of Biological Sciences, 730 11th St., NW, Washington, DC 20001-4521, Price $10. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Concentrations of elements within rings of flood-plain trees in Western Tennessee, USA AN - 42161880; 3121431 AU - Yanosky, T M AU - Carmichael, J K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42161880?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Concentrations+of+elements+within+rings+of+flood-plain+trees+in+Western+Tennessee%2C+USA&rft.au=Yanosky%2C+T+M%3BCarmichael%2C+J+K&rft.aulast=Yanosky&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Institute of Biological Sciences, 730 11th St., NW, Washington, DC 20001-4521, Price $10. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Spatial uncertainty analysis of a potential evapotranspiration model AN - 42161417; 3121266 AU - Phillips, D L AU - Marks, D G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42161417?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Spatial+uncertainty+analysis+of+a+potential+evapotranspiration+model&rft.au=Phillips%2C+D+L%3BMarks%2C+D+G&rft.aulast=Phillips&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Institute of Biological Sciences, 730 11th St., NW, Washington, DC 20001-4521, Price $10. Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Reestablishment of the red wolf into the Southern Appalachians AN - 42160641; 3121533 AU - Henry, V G AU - Lucash, C F Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42160641?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Reestablishment+of+the+red+wolf+into+the+Southern+Appalachians&rft.au=Henry%2C+V+G%3BLucash%2C+C+F&rft.aulast=Henry&rft.aufirst=V&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Institute of Biological Sciences, 730 11th St., NW, Washington, DC 20001-4521, Price $10. Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Ecological processes and consequences of invasion by the South African shrub Euryops multifidus in the southwestern United States AN - 42160585; 3120955 AU - Pierson, E A AU - McAuliffe, J R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42160585?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Ecological+processes+and+consequences+of+invasion+by+the+South+African+shrub+Euryops+multifidus+in+the+southwestern+United+States&rft.au=Pierson%2C+E+A%3BMcAuliffe%2C+J+R&rft.aulast=Pierson&rft.aufirst=E&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Institute of Biological Sciences, 730 11th St., NW, Washington, DC 20001-4521, Price $10. Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Modeling landscape change in the arid and semiarid western United States AN - 42034430; 3090372 AU - Wheeler, D J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42034430?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Modeling+landscape+change+in+the+arid+and+semiarid+western+United+States&rft.au=Wheeler%2C+D+J&rft.aulast=Wheeler&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Association of American Geographers, 1710 Sixteenth St., NW, Washington, DC 20009-3198 phone: (202) 234-1450. fax: (202) 234-2744, Abstracts available. Price $7.50 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Canopy lichens and how to measure other relevant environmental site conditions in central Idaho AN - 42015105; 3088254 AU - Rosentreter, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7000:MULTIDISCIPLINARY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42015105?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Canopy+lichens+and+how+to+measure+other+relevant+environmental+site+conditions+in+central+Idaho&rft.au=Rosentreter%2C+R&rft.aulast=Rosentreter&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Washington State University Press, Cooper Publications Building, Pullman, WA 99164-5910, Abstracts available.. Paper No. 140 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Lessons learned: Development of mutatox a new genotoxicity test to monitor contaminated sediments AN - 42005878; 3075526 AU - Johnson, B T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42005878?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Lessons+learned%3A+Development+of+mutatox+a+new+genotoxicity+test+to+monitor+contaminated+sediments&rft.au=Johnson%2C+B+T&rft.aulast=Johnson&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Poster Paper No. PD21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Environmental fate, transport and risk of PCBs in lotic ecosystems AN - 42000625; 3075663 AU - Robison, WA AU - Birge, W J AU - Price, D J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42000625?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Environmental+fate%2C+transport+and+risk+of+PCBs+in+lotic+ecosystems&rft.au=Robison%2C+WA%3BBirge%2C+W+J%3BPrice%2C+D+J&rft.aulast=Robison&rft.aufirst=WA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Poster Paper No. P250 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Fire management and rehabilitation strategies to maintain shrub steppe communities in southern Idaho AN - 41998419; 3088243 AU - Pellant, M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7000:MULTIDISCIPLINARY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41998419?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Fire+management+and+rehabilitation+strategies+to+maintain+shrub+steppe+communities+in+southern+Idaho&rft.au=Pellant%2C+M&rft.aulast=Pellant&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Washington State University Press, Cooper Publications Building, Pullman, WA 99164-5910, Abstracts available.. Paper No. 129 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Use of brain cholinesterase to differentiate between organophosphorus and carbamate exposure in wild birds AN - 41993421; 3075947 AU - Smith, M R AU - Thomas, N J AU - Hulse, C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41993421?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Use+of+brain+cholinesterase+to+differentiate+between+organophosphorus+and+carbamate+exposure+in+wild+birds&rft.au=Smith%2C+M+R%3BThomas%2C+N+J%3BHulse%2C+C&rft.aulast=Smith&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Poster Paper No. P681 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Toxicity of agricultural chemicals in runoff from MSEA sites: Potential for impacts on non-target aquatic organisms AN - 41993109; 3075838 AU - Fairchild, J F AU - Ruessler, S D AU - Nelson, M K AU - Carlson, A R AU - Donald, W W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41993109?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Toxicity+of+agricultural+chemicals+in+runoff+from+MSEA+sites%3A+Potential+for+impacts+on+non-target+aquatic+organisms&rft.au=Fairchild%2C+J+F%3BRuessler%2C+S+D%3BNelson%2C+M+K%3BCarlson%2C+A+R%3BDonald%2C+W+W&rft.aulast=Fairchild&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Poster Paper No. P532 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Contaminant-related wildlife mortality investigated by the National Wildlife Health Research Center AN - 41989566; 3075075 AU - Glaser, L C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41989566?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Contaminant-related+wildlife+mortality+investigated+by+the+National+Wildlife+Health+Research+Center&rft.au=Glaser%2C+L+C&rft.aulast=Glaser&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Paper No. 150 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Quality assessment of sediment contaminant baseline data from the arctic national wildlife refuge AN - 41988802; 3075240 AU - Snyder-Conn, E Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41988802?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Quality+assessment+of+sediment+contaminant+baseline+data+from+the+arctic+national+wildlife+refuge&rft.au=Snyder-Conn%2C+E&rft.aulast=Snyder-Conn&rft.aufirst=E&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Paper No. 321 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Impacts of irrigation drainwater on fish and wildlife resources occurring within the Dolores project area of SW Colorado: Comparison of areas irrigated long-term verses short-term AN - 41984361; 3075659 AU - Osmundson, B C AU - Krueger, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41984361?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Impacts+of+irrigation+drainwater+on+fish+and+wildlife+resources+occurring+within+the+Dolores+project+area+of+SW+Colorado%3A+Comparison+of+areas+irrigated+long-term+verses+short-term&rft.au=Osmundson%2C+B+C%3BKrueger%2C+R&rft.aulast=Osmundson&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Poster Paper No. P245 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Developmental status of semipermeable membrane devices for monitoring organ contaminants in environmental media AN - 41976399; 3076065 AU - Huckins, J N AU - Petty, J D AU - Lebo, JA AU - Orazio, CE AU - Zajicek, J L AU - Ellis, G S AU - Rostad, CE AU - Prest, H F AU - PAF: USF&WS, Columbia MO USA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41976399?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Developmental+status+of+semipermeable+membrane+devices+for+monitoring+organ+contaminants+in+environmental+media&rft.au=Huckins%2C+J+N%3BPetty%2C+J+D%3BLebo%2C+JA%3BOrazio%2C+CE%3BZajicek%2C+J+L%3BEllis%2C+G+S%3BRostad%2C+CE%3BPrest%2C+H+F%3BPAF%3A+USF%26amp%3BWS%2C+Columbia+MO+USA&rft.aulast=Huckins&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Poster Paper No. P819 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - beta -Adranoceptors in membranes from adult brook trout (Salvelinus fontinalis) gill measured by radioligand binding techniques AN - 41972897; 3075898 AU - Jones, S B AU - King, L B Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41972897?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=beta+-Adranoceptors+in+membranes+from+adult+brook+trout+%28Salvelinus+fontinalis%29+gill+measured+by+radioligand+binding+techniques&rft.au=Jones%2C+S+B%3BKing%2C+L+B&rft.aulast=Jones&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Poster Paper No. P627 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Age and size of Hyalella azteca for sediment toxicity testing AN - 41972143; 3075196 AU - Winger, P V AU - Lasier, P J AU - Ankley, G T AU - Collyard, SA AU - Hoke, R A AU - Tomasovic, M AU - McNulty, E Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41972143?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Age+and+size+of+Hyalella+azteca+for+sediment+toxicity+testing&rft.au=Winger%2C+P+V%3BLasier%2C+P+J%3BAnkley%2C+G+T%3BCollyard%2C+SA%3BHoke%2C+R+A%3BTomasovic%2C+M%3BMcNulty%2C+E&rft.aulast=Winger&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Paper No. 274 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effects of oilfield brinewater discharges on western sandpipers (Calidris mauri) in Nueces Bay, Texas AN - 41972007; 3075378 AU - Capizzi, J L AU - King, KA AU - Melancon, MJ AU - Rattner, BA AU - LeCaptain, L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41972007?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Molecular+Ecology&rft.atitle=Intraspecific+phylogeography+of+Lasmigona+subviridis+%28Bivalvia%3A+Unionidae%29%3A+conservation+implications+of+range+discontinuity&rft.au=King%2C+T+L%3BEackles%3BGjetvaj%2C+B%3BHoeh%2C+W+R&rft.aulast=King&rft.aufirst=T&rft.date=1999-12-01&rft.volume=8&rft.issue=12&rft.spage=S65&rft.isbn=&rft.btitle=&rft.title=Molecular+Ecology&rft.issn=09621083&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. 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Paper No. 461 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Standardization of national USEPA methods for measuring the toxicity and bioaccumulation of sediment-associated contaminants with freshwater invertebrates AN - 41971356; 3075191 AU - Ingersoll, C G AU - Ankley, G T AU - Benoit, DA AU - Burton, G A AU - Dwyer, F J AU - Greer, I E AU - Norberg-King, T J AU - Winger, P V Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41971356?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Standardization+of+national+USEPA+methods+for+measuring+the+toxicity+and+bioaccumulation+of+sediment-associated+contaminants+with+freshwater+invertebrates&rft.au=Ingersoll%2C+C+G%3BAnkley%2C+G+T%3BBenoit%2C+DA%3BBurton%2C+G+A%3BDwyer%2C+F+J%3BGreer%2C+I+E%3BNorberg-King%2C+T+J%3BWinger%2C+P+V&rft.aulast=Ingersoll&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Paper No. 269 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Bioaccumulation kinetics and field-validation of whole sediment exposures with the oligochaete Lumbriculus variegatus AN - 41971266; 3075198 AU - Brunson, EL AU - Ankley, G T AU - Burton, G A AU - Dwyer, F J AU - Ingersoll, C G AU - Landrum, P F AU - Lee, H AU - Phipps, G L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41971266?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Bioaccumulation+kinetics+and+field-validation+of+whole+sediment+exposures+with+the+oligochaete+Lumbriculus+variegatus&rft.au=Brunson%2C+EL%3BAnkley%2C+G+T%3BBurton%2C+G+A%3BDwyer%2C+F+J%3BIngersoll%2C+C+G%3BLandrum%2C+P+F%3BLee%2C+H%3BPhipps%2C+G+L&rft.aulast=Brunson&rft.aufirst=EL&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Paper No. 276 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Influence of atmospheric deposition on Okefenokee National Wildlife Refuge AN - 41971144; 3075516 AU - Winger, P V AU - Lasier, P J AU - Haines, T A AU - Brown, S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41971144?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Influence+of+atmospheric+deposition+on+Okefenokee+National+Wildlife+Refuge&rft.au=Winger%2C+P+V%3BLasier%2C+P+J%3BHaines%2C+T+A%3BBrown%2C+S&rft.aulast=Winger&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Poster Paper No. PD07 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Impacts of selenium on chinook salmon AN - 41968038; 3075355 AU - Hamilton, S J AU - Palmisano, AN Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41968038?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Impacts+of+selenium+on+chinook+salmon&rft.au=Hamilton%2C+S+J%3BPalmisano%2C+AN&rft.aulast=Hamilton&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Paper No. 437 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Demonstration of a water-renewal system that accurately delivers small volumes of water to exposure chambers AN - 41967118; 3075978 AU - Zumwalt, D C AU - Dwyer, F J AU - Greer, I E AU - Ingersoll, C G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41967118?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Demonstration+of+a+water-renewal+system+that+accurately+delivers+small+volumes+of+water+to+exposure+chambers&rft.au=Zumwalt%2C+D+C%3BDwyer%2C+F+J%3BGreer%2C+I+E%3BIngersoll%2C+C+G&rft.aulast=Zumwalt&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Poster Paper No. P718 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Prediction of aquatic toxicity of contaminants identified by GC/MS using an interface with an expert system AN - 41965387; 3075687 AU - Passino-Reader AU - Hickey, J P AU - Aldridge, A J AU - Schmidt, L J AU - Nelson AU - Hesselberg, R J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41965387?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Prediction+of+aquatic+toxicity+of+contaminants+identified+by+GC%2FMS+using+an+interface+with+an+expert+system&rft.au=Passino-Reader%3BHickey%2C+J+P%3BAldridge%2C+A+J%3BSchmidt%2C+L+J%3BNelson%3BHesselberg%2C+R+J&rft.aulast=Passino-Reader&rft.aufirst=&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Poster Paper No. P309 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Biogeochemical significance of bacterial dissimilatory selenate reduction (DSeR) in aquatic systems AN - 41964026; 3075353 AU - Oremland, R S AU - Culbertson, C W AU - Switzer Blum, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41964026?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Biogeochemical+significance+of+bacterial+dissimilatory+selenate+reduction+%28DSeR%29+in+aquatic+systems&rft.au=Oremland%2C+R+S%3BCulbertson%2C+C+W%3BSwitzer+Blum%2C+J&rft.aulast=Oremland&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Paper No. 435 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Inhibition of zebra mussel attachment with antioxidants: A potential control method AN - 41963775; 3075287 AU - Cope, W G AU - McPeak, M R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41963775?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Inhibition+of+zebra+mussel+attachment+with+antioxidants%3A+A+potential+control+method&rft.au=Cope%2C+W+G%3BMcPeak%2C+M+R&rft.aulast=Cope&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Paper No. 369 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Aquatic community degradation in wetlands of the Klamath basin AN - 41962573; 3075861 AU - Sefchick, JA AU - Bennett, J K AU - Schwarzbach, S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41962573?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Aquatic+community+degradation+in+wetlands+of+the+Klamath+basin&rft.au=Sefchick%2C+JA%3BBennett%2C+J+K%3BSchwarzbach%2C+S&rft.aulast=Sefchick&rft.aufirst=JA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Poster Paper No. P556 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Comparison of brain cholinesterase measurements: An interlaboratory study AN - 41956859; 3075175 AU - Bennett, J K AU - Fairbrother, A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41956859?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Comparison+of+brain+cholinesterase+measurements%3A+An+interlaboratory+study&rft.au=Bennett%2C+J+K%3BFairbrother%2C+A&rft.aulast=Bennett&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Paper No. 253 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Response of colonizing aquatic macrophytes to soil factors and pH AN - 41955789; 3075401 AU - Sparling, D W AU - Lowe, T P AU - Day, D D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41955789?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Response+of+colonizing+aquatic+macrophytes+to+soil+factors+and+pH&rft.au=Sparling%2C+D+W%3BLowe%2C+T+P%3BDay%2C+D+D&rft.aulast=Sparling&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Paper No. 484 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Developmental toxicity of planar PCB congeners in nestling american kestrels (Falco sparverius) AN - 41955225; 3075556 AU - Hoffman, D J AU - Rice, C P AU - Melancon, MJ AU - Klein, P N AU - Eisemann, J D AU - Hines, R K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41955225?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Developmental+toxicity+of+planar+PCB+congeners+in+nestling+american+kestrels+%28Falco+sparverius%29&rft.au=Hoffman%2C+D+J%3BRice%2C+C+P%3BMelancon%2C+MJ%3BKlein%2C+P+N%3BEisemann%2C+J+D%3BHines%2C+R+K&rft.aulast=Hoffman&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Poster Paper No. PD57 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Method for the producing known-age Hyalella azteca for toxicity testing AN - 41954162; 3075979 AU - Greer, I E AU - McNulty, E W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41954162?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Method+for+the+producing+known-age+Hyalella+azteca+for+toxicity+testing&rft.au=Greer%2C+I+E%3BMcNulty%2C+E+W&rft.aulast=Greer&rft.aufirst=I&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Poster Paper No. P719 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Mortality incident assessment program: An initiative for the U.S. fish and wildlife service AN - 41953313; 3075073 AU - Lyon, LA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41953313?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Mortality+incident+assessment+program%3A+An+initiative+for+the+U.S.+fish+and+wildlife+service&rft.au=Lyon%2C+LA&rft.aulast=Lyon&rft.aufirst=LA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Paper No. 148 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Recent advances in marine and estuarine porewater toxicity testing AN - 41951663; 3075748 AU - Carr, R S AU - Chapman, D C AU - Biedenbach, J M AU - Robertson, L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41951663?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Recent+advances+in+marine+and+estuarine+porewater+toxicity+testing&rft.au=Carr%2C+R+S%3BChapman%2C+D+C%3BBiedenbach%2C+J+M%3BRobertson%2C+L&rft.aulast=Carr&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Poster Paper No. P401 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Responses of amphibians to reduced pH and sediment factors in aquatic mesocosms AN - 41949263; 3075113 AU - Sparling, D W AU - Lowe, T P AU - Day, D D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41949263?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Responses+of+amphibians+to+reduced+pH+and+sediment+factors+in+aquatic+mesocosms&rft.au=Sparling%2C+D+W%3BLowe%2C+T+P%3BDay%2C+D+D&rft.aulast=Sparling&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Paper No. 189 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Ecosystem effects from produced water and potash mine disposal activities AN - 41948549; 3075377 AU - Roy, R AU - Davis, D AU - Hopkins, S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41948549?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Ecosystem+effects+from+produced+water+and+potash+mine+disposal+activities&rft.au=Roy%2C+R%3BDavis%2C+D%3BHopkins%2C+S&rft.aulast=Roy&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Paper No. 460 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Air quality management at U.S. fish and wildlife class I wilderness areas AN - 41947400; 3075518 AU - Porter, E M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7500:PHARMACOLOGY KW - U 5500:GEOSCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41947400?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Air+quality+management+at+U.S.+fish+and+wildlife+class+I+wilderness+areas&rft.au=Porter%2C+E+M&rft.aulast=Porter&rft.aufirst=E&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Environmenral Toxicology and Chemistry, 1010 North 12th Ave., Pensacola, FL 32501 Telephone:(904)469-1500, Abstracts. Price $30.. Poster Paper No. PD09 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Phytoplankton population dynamics in perennially ice-covered Lake Fryxell, Antarctica.PSA AN - 41914053; 3045652 AU - Spaulding, SA AU - McKnight, D M AU - Smith, R L AU - Dufford, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41914053?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Phytoplankton+population+dynamics+in+perennially+ice-covered+Lake+Fryxell%2C+Antarctica.PSA&rft.au=Spaulding%2C+SA%3BMcKnight%2C+D+M%3BSmith%2C+R+L%3BDufford%2C+R&rft.aulast=Spaulding&rft.aufirst=SA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: AIBS730 11th Street, NW, Washington, DC 20001-4521, USA; Telephone: (202) 628-1500; Fax: (202) 628-1509; Internet: AIBSWUVM.EDU, Abstracts Poster Paper No. PSA 24 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - National water information system II, an integrated data system AN - 41887255; 2940244 AU - Kiesler, J L AU - Yorke, TH Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41887255?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=National+water+information+system+II%2C+an+integrated+data+system&rft.au=Kiesler%2C+J+L%3BYorke%2C+TH&rft.aulast=Kiesler&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: AIH, 3416 University Ave. SE, Minneapolis, MN 55414-3328, USA; Telephone: (612) 379-1030; Fax: (612) 379-0169, Proceedings N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Fractionation, characterization, and comparison of bulk soil organic substances and water soluble soil interstitial organic constituents in selected cryosols of Alaska AN - 41875650; 2939866 AU - Malcolm, R L AU - Ping, CL AU - Michaelson, G T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41875650?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Fractionation%2C+characterization%2C+and+comparison+of+bulk+soil+organic+substances+and+water+soluble+soil+interstitial+organic+constituents+in+selected+cryosols+of+Alaska&rft.au=Malcolm%2C+R+L%3BPing%2C+CL%3BMichaelson%2C+G+T&rft.aulast=Malcolm&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: AIH, 3416 University Ave. SE, Minneapolis, MN 55414-3328, USA; Telephone: (612) 379-1030; Fax: (612) 379-0169, Proceedings N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Hydrogeologic reconnaissance at the Ciba-Geigy Superfund Site, Ocean County, New Jersey AN - 41874510; 2939889 AU - Barton, G J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41874510?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Hydrogeologic+reconnaissance+at+the+Ciba-Geigy+Superfund+Site%2C+Ocean+County%2C+New+Jersey&rft.au=Barton%2C+G+J&rft.aulast=Barton&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: AIH, 3416 University Ave. SE, Minneapolis, MN 55414-3328, USA; Telephone: (612) 379-1030; Fax: (612) 379-0169, Proceedings N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Impact of agriculture on U.S. water quality - a national perspective AN - 41860163; 2940262 AU - Cohen, P AU - Mallard, G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41860163?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Impact+of+agriculture+on+U.S.+water+quality+-+a+national+perspective&rft.au=Cohen%2C+P%3BMallard%2C+G&rft.aulast=Cohen&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: AIH, 3416 University Ave. SE, Minneapolis, MN 55414-3328, USA; Telephone: (612) 379-1030; Fax: (612) 379-0169, Proceedings N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Statistical analysis of field-scale subsurface heterogeneity at the Princeton, Minnesota MSEA using ground-penetrating radar AN - 41851502; 2900339 AU - Lucius, JE AU - Olhoeft, G R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41851502?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Statistical+analysis+of+field-scale+subsurface+heterogeneity+at+the+Princeton%2C+Minnesota+MSEA+using+ground-penetrating+radar&rft.au=Lucius%2C+JE%3BOlhoeft%2C+G+R&rft.aulast=Lucius&rft.aufirst=JE&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SWCS, 7517 Northeast Ankeny Road, Ankeny, IA 50021-7645-9764, USA; Telephone: 1-800-843-7645 (THE-SOIL); Fax: (515) 289-1227 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Progress in global land data sets and land characterization: USGS research program AN - 41840334; 2913225 AU - Kirtland, DA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41840334?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Progress+in+global+land+data+sets+and+land+characterization%3A+USGS+research+program&rft.au=Kirtland%2C+DA&rft.aulast=Kirtland&rft.aufirst=DA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: GW4 Conference, Global Warming International Center, One Heritage Plaza, P.O. Box 5275, Woodbridge, IL 60517-0275, USA; Phone: 708 910-1551; Fax: 708 910-1561 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Particle-tracking analysis of local-scale hydrogeologic factors at Patchogue, New York AN - 41839234; 2939901 AU - Misut, P E AU - Feldman, S M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41839234?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Particle-tracking+analysis+of+local-scale+hydrogeologic+factors+at+Patchogue%2C+New+York&rft.au=Misut%2C+P+E%3BFeldman%2C+S+M&rft.aulast=Misut&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: AIH, 3416 University Ave. SE, Minneapolis, MN 55414-3328, USA; Telephone: (612) 379-1030; Fax: (612) 379-0169, Proceedings N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Computer simulation model of biogenic methane emission in Arctic Alaska AN - 41837773; 2913039 AU - Acevedo, W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2000:BIOLOGY GENERAL KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41837773?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Computer+simulation+model+of+biogenic+methane+emission+in+Arctic+Alaska&rft.au=Acevedo%2C+W&rft.aulast=Acevedo&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geophysical Institute, Business Office, University of Alaska at Fairbanks, Fairbanks, AK 99775-0800, USA, Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Difficulty of interpreting groundwater sampling results from a highly transmissive aquifer with widespread, historic and recent contamination with nitrates and atrazine herbicides, Shelton, Nebraska AN - 41832141; 2900207 AU - Kilpatric, J M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41832141?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Difficulty+of+interpreting+groundwater+sampling+results+from+a+highly+transmissive+aquifer+with+widespread%2C+historic+and+recent+contamination+with+nitrates+and+atrazine+herbicides%2C+Shelton%2C+Nebraska&rft.au=Kilpatric%2C+J+M&rft.aulast=Kilpatric&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SWCS, 7517 Northeast Ankeny Road, Ankeny, IA 50021-7645-9764, USA; Telephone: 1-800-843-7645 (THE-SOIL); Fax: (515) 289-1227 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Hydrology and nitrogen distribution in claypan soil and glacial till near Centralia, Missouri - May 1991 to May 1992 AN - 41828063; 2900505 AU - Kelly, B P AU - Blevins, D W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41828063?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Tritium+and+plutonium+in+waters+from+the+Bering+and+Chukchi+seas.&rft.au=Landa%2C+E+R%3BBeals%2C+D+M%3BHalverson%2C+J+E%3BMichel%2C+R+L%3BCefus%2C+G+R&rft.aulast=Landa&rft.aufirst=E&rft.date=1999-12-01&rft.volume=77&rft.issue=6&rft.spage=668&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SWCS, 7517 Northeast Ankeny Road, Ankeny, IA 50021-7645-9764, USA; Telephone: 1-800-843-7645 (THE-SOIL); Fax: (515) 289-1227 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Recognition of natural chemical filters in the Minnesota MSEA AN - 41823038; 2900442 AU - Cameron, C C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41823038?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Recognition+of+natural+chemical+filters+in+the+Minnesota+MSEA&rft.au=Cameron%2C+C+C&rft.aulast=Cameron&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SWCS, 7517 Northeast Ankeny Road, Ankeny, IA 50021-7645-9764, USA; Telephone: 1-800-843-7645 (THE-SOIL); Fax: (515) 289-1227 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Role of the large flood on transport of sediment and chemicals from agricultural lands - a case study AN - 41822780; 2900164 AU - Gray, J R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41822780?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Role+of+the+large+flood+on+transport+of+sediment+and+chemicals+from+agricultural+lands+-+a+case+study&rft.au=Gray%2C+J+R&rft.aulast=Gray&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SWCS, 7517 Northeast Ankeny Road, Ankeny, IA 50021-7645-9764, USA; Telephone: 1-800-843-7645 (THE-SOIL); Fax: (515) 289-1227 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Landfill mapping using multi-disciplined geophysical techniques at the U.S. Air Force Academy, Colorado Springs, Colorado AN - 41821846; 2915538 AU - Horton, R AU - Busby, J AU - Knoshaug, R AU - Power, M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41821846?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Landfill+mapping+using+multi-disciplined+geophysical+techniques+at+the+U.S.+Air+Force+Academy%2C+Colorado+Springs%2C+Colorado&rft.au=Horton%2C+R%3BBusby%2C+J%3BKnoshaug%2C+R%3BPower%2C+M&rft.aulast=Horton&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: EEGS, P.O. Box 4475, Englewood, CO 80155, USA; Telephone: (303) 771-6101; Fax: (303) 843-6232, Proceedings, $60.00 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Herbicides and nitrate in near-surface aquifers in the mid-continental United States, 1991 AN - 41820531; 2900365 AU - Burkart, M R AU - Kolpin, D W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41820531?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Herbicides+and+nitrate+in+near-surface+aquifers+in+the+mid-continental+United+States%2C+1991&rft.au=Burkart%2C+M+R%3BKolpin%2C+D+W&rft.aulast=Burkart&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SWCS, 7517 Northeast Ankeny Road, Ankeny, IA 50021-7645-9764, USA; Telephone: 1-800-843-7645 (THE-SOIL); Fax: (515) 289-1227 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Pesticides in shallow groundwater in the Delmarva Peninsula AN - 41797031; 2900507 AU - Koterba, M T AU - Banks, W S AU - Shedlock, R J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41797031?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Pesticides+in+shallow+groundwater+in+the+Delmarva+Peninsula&rft.au=Koterba%2C+M+T%3BBanks%2C+W+S%3BShedlock%2C+R+J&rft.aulast=Koterba&rft.aufirst=M&rft.date=2000-12-31&rft.volume=26&rft.issue=4&rft.spage=270&rft.isbn=&rft.btitle=&rft.title=Environmental+Conservation&rft.issn=03768929&rft_id=info:doi/10.1017%2FS0376892999000399 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SWCS, 7517 Northeast Ankeny Road, Ankeny, IA 50021-7645-9764, USA; Telephone: 1-800-843-7645 (THE-SOIL); Fax: (515) 289-1227 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Atrazine mineralization potential of alluvial-aquifer sediments under aerobic conditions AN - 41796945; 2900413 AU - McMahon, P B AU - Chapelle, F H AU - Jagucki, M L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41796945?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Atrazine+mineralization+potential+of+alluvial-aquifer+sediments+under+aerobic+conditions&rft.au=McMahon%2C+P+B%3BChapelle%2C+F+H%3BJagucki%2C+M+L&rft.aulast=McMahon&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SWCS, 7517 Northeast Ankeny Road, Ankeny, IA 50021-7645-9764, USA; Telephone: 1-800-843-7645 (THE-SOIL); Fax: (515) 289-1227 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Occurrence of agricultural chemicals in groundwater at the Princeton, Minnesota management systems evaluation area AN - 41796417; 2900423 AU - Landon, M K AU - Delin, G N AU - Guo, L AU - Lamb, JA AU - Anderson, J L AU - Regan, C P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41796417?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Occurrence+of+agricultural+chemicals+in+groundwater+at+the+Princeton%2C+Minnesota+management+systems+evaluation+area&rft.au=Landon%2C+M+K%3BDelin%2C+G+N%3BGuo%2C+L%3BLamb%2C+JA%3BAnderson%2C+J+L%3BRegan%2C+C+P&rft.aulast=Landon&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SWCS, 7517 Northeast Ankeny Road, Ankeny, IA 50021-7645-9764, USA; Telephone: 1-800-843-7645 (THE-SOIL); Fax: (515) 289-1227 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Fate of alachlor, atrazine, and desethylatrazine in a corn plot near Topeka, Kansas AN - 41795097; 2900561 AU - Eckhardt, DAV AU - Wagenet, R J AU - Barnes, L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41795097?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Fate+of+alachlor%2C+atrazine%2C+and+desethylatrazine+in+a+corn+plot+near+Topeka%2C+Kansas&rft.au=Eckhardt%2C+DAV%3BWagenet%2C+R+J%3BBarnes%2C+L&rft.aulast=Eckhardt&rft.aufirst=DAV&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SWCS, 7517 Northeast Ankeny Road, Ankeny, IA 50021-7645-9764, USA; Telephone: 1-800-843-7645 (THE-SOIL); Fax: (515) 289-1227, Poster Paper No. 14 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Preferential transport of atrazine in well-structured soils AN - 41794533; 2900174 AU - Tindall, JA AU - Vencill, W K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41794533?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Preferential+transport+of+atrazine+in+well-structured+soils&rft.au=Tindall%2C+JA%3BVencill%2C+W+K&rft.aulast=Tindall&rft.aufirst=JA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SWCS, 7517 Northeast Ankeny Road, Ankeny, IA 50021-7645-9764, USA; Telephone: 1-800-843-7645 (THE-SOIL); Fax: (515) 289-1227 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Nitrate, atrazine, and metolachlor in Walnut Creek near Ames, Iowa AN - 41793302; 2900578 AU - Soenksen, P J AU - Schmitz, D J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41793302?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Nitrate%2C+atrazine%2C+and+metolachlor+in+Walnut+Creek+near+Ames%2C+Iowa&rft.au=Soenksen%2C+P+J%3BSchmitz%2C+D+J&rft.aulast=Soenksen&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SWCS, 7517 Northeast Ankeny Road, Ankeny, IA 50021-7645-9764, USA; Telephone: 1-800-843-7645 (THE-SOIL); Fax: (515) 289-1227, Poster Paper No. 21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Rapid coastal land loss in the northern Gulf of Mexico AN - 41765812; 2792255 AU - Williams, S J AU - Penland, S AU - Sallenger, AH Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41765812?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Rapid+coastal+land+loss+in+the+northern+Gulf+of+Mexico&rft.au=Williams%2C+S+J%3BPenland%2C+S%3BSallenger%2C+AH&rft.aulast=Williams&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: AAG, 1710 16th St. NW, Washington, DC 20009, USA; Telephone: (202) 234-1450; Fax: (202) 234-2744; Bitnet: AAGWUVM, Abstracts, $5.00 plus $3.00 shipping N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Particle-tracking analysis of ground water contributing areas to wells in a valley-fill-aquifer system AN - 41666674; 2575134 AU - Wolcott, S W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41666674?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Particle-tracking+analysis+of+ground+water+contributing+areas+to+wells+in+a+valley-fill-aquifer+system&rft.au=Wolcott%2C+S+W&rft.aulast=Wolcott&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: National Well Water Association, Education Foundation, 6375 Riverside Dr., Dublin, OH 43017, USA, Paper No. A310 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Automated approach to evaluate ground water development potential in fractured-rock settings AN - 41666506; 2574982 AU - Clarke, J S AU - McFadden, K W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41666506?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Automated+approach+to+evaluate+ground+water+development+potential+in+fractured-rock+settings&rft.au=Clarke%2C+J+S%3BMcFadden%2C+K+W&rft.aulast=Clarke&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: National Well Water Association, Education Foundation, 6375 Riverside Dr., Dublin, OH 43017, USA, Paper No. A203 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Monitoring road salt contamination of ground water with a borehole electromagnetic induction logger AN - 41662162; 2575166 AU - Church, P E AU - Friesz, P J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41662162?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Monitoring+road+salt+contamination+of+ground+water+with+a+borehole+electromagnetic+induction+logger&rft.au=Church%2C+P+E%3BFriesz%2C+P+J&rft.aulast=Church&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: National Well Water Association, Education Foundation, 6375 Riverside Dr., Dublin, OH 43017, USA, Paper No. B105 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Ground shaking in the Puget Lowland, Western Washington State, from earthquakes recorded on the SHIPS land geophone array AN - 41614331; 3472360 AU - Pratt, T AU - Brocher, T AU - Parsons, T AU - Fisher, M AU - Creager, K AU - Crosson, R AU - Weaver, C AU - Hyndman, R AU - Trehu, A AU - Miller, K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41614331?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Ground+shaking+in+the+Puget+Lowland%2C+Western+Washington+State%2C+from+earthquakes+recorded+on+the+SHIPS+land+geophone+array&rft.au=Pratt%2C+T%3BBrocher%2C+T%3BParsons%2C+T%3BFisher%2C+M%3BCreager%2C+K%3BCrosson%2C+R%3BWeaver%2C+C%3BHyndman%2C+R%3BTrehu%2C+A%3BMiller%2C+K&rft.aulast=Pratt&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Seismological Society of America, 201 Plaza Professional Building, El Cerrito, CA 94530, USA; 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N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Tectonic setting and earthquake hazards of the Seattle fault, Washington: Implications from high-resolution aeromagnetic data AN - 41607494; 3472361 AU - Blakely, R J AU - Wells, R E AU - Weaver, C S AU - Johnson, SY Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41607494?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Tectonic+setting+and+earthquake+hazards+of+the+Seattle+fault%2C+Washington%3A+Implications+from+high-resolution+aeromagnetic+data&rft.au=Blakely%2C+R+J%3BWells%2C+R+E%3BWeaver%2C+C+S%3BJohnson%2C+SY&rft.aulast=Blakely&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Seismological Society of America, 201 Plaza Professional Building, El Cerrito, CA 94530, USA; phone: 510-525-5474; fax: 510-525-7204; email: info@seismosoc.org; URL: www.seismosoc.org, Abstracts available. 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N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Holocene surface faulting in the Seattle fault zone, Bainbridge Island, Washington AN - 41603104; 3472425 AU - Nelson, A R AU - Pezzopane, S K AU - Bucknam, R C AU - Koehler, R D AU - Narwold, C F AU - Kelsey, H M AU - Laprade, W T AU - Wells, R E AU - Johnson, SY Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41603104?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Holocene+surface+faulting+in+the+Seattle+fault+zone%2C+Bainbridge+Island%2C+Washington&rft.au=Nelson%2C+A+R%3BPezzopane%2C+S+K%3BBucknam%2C+R+C%3BKoehler%2C+R+D%3BNarwold%2C+C+F%3BKelsey%2C+H+M%3BLaprade%2C+W+T%3BWells%2C+R+E%3BJohnson%2C+SY&rft.aulast=Nelson&rft.aufirst=A&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Seismological Society of America, 201 Plaza Professional Building, El Cerrito, CA 94530, USA; phone: 510-525-5474; fax: 510-525-7204; email: info@seismosoc.org; URL: www.seismosoc.org, Abstracts available. 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N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Heavy metal content of macrophytes drifting in a connecting channel of the Great Lakes AN - 41601293; 2483645 AU - Manny, BA AU - Nichols, S J AU - Schloesser, D W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2000:BIOLOGY GENERAL KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41601293?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Heavy+metal+content+of+macrophytes+drifting+in+a+connecting+channel+of+the+Great+Lakes&rft.au=Manny%2C+BA%3BNichols%2C+S+J%3BSchloesser%2C+D+W&rft.aulast=Manny&rft.aufirst=BA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Wetland Scientists, P.O. Box 296, Wilmington, NC 28402, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Radiocarbon dating of a Seattle earthquake to A.D. 900-930 AN - 41600342; 3472422 AU - Atwater, B F Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41600342?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Radiocarbon+dating+of+a+Seattle+earthquake+to+A.D.+900-930&rft.au=Atwater%2C+B+F&rft.aulast=Atwater&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Seismological Society of America, 201 Plaza Professional Building, El Cerrito, CA 94530, USA; phone: 510-525-5474; fax: 510-525-7204; email: info@seismosoc.org; URL: www.seismosoc.org, Abstracts available. 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N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Use of GIS for wetland change analyses, management practices, and research programs in coastal Louisiana AN - 41597377; 2482271 AU - Johnston, J B AU - Lampman, J L AU - Handley, L R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2000:BIOLOGY GENERAL KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41597377?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Use+of+GIS+for+wetland+change+analyses%2C+management+practices%2C+and+research+programs+in+coastal+Louisiana&rft.au=Johnston%2C+J+B%3BLampman%2C+J+L%3BHandley%2C+L+R&rft.aulast=Johnston&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Wetland Scientists, P.O. Box 296, Wilmington, NC 28402, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Tradeoffs between competitive ability and stress tolerance in the coastal marsh community of the northern Gulf of Mexico AN - 41596886; 2483758 AU - Keough, J R AU - Guntenspergen, G R AU - Grace, J B Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2000:BIOLOGY GENERAL KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41596886?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Tradeoffs+between+competitive+ability+and+stress+tolerance+in+the+coastal+marsh+community+of+the+northern+Gulf+of+Mexico&rft.au=Keough%2C+J+R%3BGuntenspergen%2C+G+R%3BGrace%2C+J+B&rft.aulast=Keough&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Wetland Scientists, P.O. Box 296, Wilmington, NC 28402, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Institutional issues in the integration of remote sensing and geographic information systems AN - 41592784; 2478512 AU - Lauer, D T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41592784?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Institutional+issues+in+the+integration+of+remote+sensing+and+geographic+information+systems&rft.au=Lauer%2C+D+T&rft.aulast=Lauer&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASPRS Publications, P.O. Box 1269, Evans City, PA 16033, USA, Technical Papers, 6 volume set, ISBN: 0-944426-38-7, $15.00/volume for members and $25.00/volume for non-members N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Role of bottom slope in determining diversity of plant communities in diked wetlands AN - 41588335; 2483520 AU - Wilcox, DA AU - Madsen, B J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2000:BIOLOGY GENERAL KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41588335?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Climatology&rft.atitle=Decadal+variations+in+the+strength+of+ENSO+teleconnections+with+precipitation+in+the+western+United+States&rft.au=McCabe%2C+G+J%3BDettinger%2C+MD&rft.aulast=McCabe&rft.aufirst=G&rft.date=1999-11-15&rft.volume=19&rft.issue=13&rft.spage=1399&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Climatology&rft.issn=08998418&rft_id=info:doi/10.1002%2F%28SICI%291097-0088%2819991115%2919%3A133.3.CO%3B2-1 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Wetland Scientists, P.O. Box 296, Wilmington, NC 28402, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Use of landsat thematic mapper data to map land vover for water quality assessment AN - 41577062; 2482139 AU - Price, C V AU - Jenson, S K AU - White, DA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41577062?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Use+of+landsat+thematic+mapper+data+to+map+land+vover+for+water+quality+assessment&rft.au=Price%2C+C+V%3BJenson%2C+S+K%3BWhite%2C+DA&rft.aulast=Price&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASPRS Publications, P.O. Box 1269, Evans City, PA 16033, USA, Technical Papers, 6 volume set, ISBN: 0-944426-38-7, $15.00/volume for members and $25.00/volume for non-members N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Potential for an irreversible calving retreat of Bering Glacier, Alaska AN - 41565873; 2378309 AU - Molnia, B F AU - Trabant, D C AU - Post, A AU - Frank-Molnia, D G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7000:MUTIDISCIPLINARY UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41565873?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Potential+for+an+irreversible+calving+retreat+of+Bering+Glacier%2C+Alaska&rft.au=Molnia%2C+B+F%3BTrabant%2C+D+C%3BPost%2C+A%3BFrank-Molnia%2C+D+G&rft.aulast=Molnia&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: AAAS, Arctic Division, 1333 H Street, NW, Washington, DC 20005, USA, Paper No. 77 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Management constraints on the Upper Mississippi River National Wildlife and Fish Refuge AN - 41559422; 2481200 AU - Berry, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2000:BIOLOGY GENERAL KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41559422?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Management+constraints+on+the+Upper+Mississippi+River+National+Wildlife+and+Fish+Refuge&rft.au=Berry%2C+R&rft.aulast=Berry&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Wetland Scientists, P.O. Box 296, Wilmington, NC 28402, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Irrigation water-use data base for the Tomichi Creek Basin, Colorado AN - 41556276; 2388579 AU - Litke, D W AU - Hall, L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41556276?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Irrigation+water-use+data+base+for+the+Tomichi+Creek+Basin%2C+Colorado&rft.au=Litke%2C+D+W%3BHall%2C+L&rft.aulast=Litke&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Water Resources Association, 5410 Grosvenor Lane, Suite 220, Bethesda, MD 20814-2192, USA. Telephone: (301) 493-8600., Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Estimation of riparian vegetation response to altered discharge AN - 41554323; 2481163 AU - Auble, G T AU - Scott, M L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 2000:BIOLOGY GENERAL KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41554323?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Estimation+of+riparian+vegetation+response+to+altered+discharge&rft.au=Auble%2C+G+T%3BScott%2C+M+L&rft.aulast=Auble&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Wetland Scientists, P.O. Box 296, Wilmington, NC 28402, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Economic pressures driving changes in fisheries AN - 41541946; 2377248 AU - Parker, N C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41541946?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Economic+pressures+driving+changes+in+fisheries&rft.au=Parker%2C+N+C&rft.aulast=Parker&rft.aufirst=N&rft.date=2000-12-31&rft.volume=123&rft.issue=2-3&rft.spage=261&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/10.1016%2FS0378-1127%2899%2900043-2 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Dr. Arnold G. Eversole, Clemson University, Clemson, SC 29631, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Arctic environmental data directory AN - 41509453; 2279211 AU - Posson AU - Jones, MO Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41509453?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Arctic+environmental+data+directory&rft.au=Posson%3BJones%2C+MO&rft.aulast=Posson&rft.aufirst=&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Dr. Gunter Weller, Geophysical Institute, University of Alaska, Fairbanks, AK 99775-0800, USA, Abstracts; $10.00 Poster Paper No. AP11 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - East coast GLORIA data on CD-ROM AN - 41501269; 2359063 AU - Lockwood, M AU - McFaul, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING KW - U 2000:BIOLOGY GENERAL KW - U 6500:MATHEMATICS KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41501269?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=East+coast+GLORIA+data+on+CD-ROM&rft.au=Lockwood%2C+M%3BMcFaul%2C+J&rft.aulast=Lockwood&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: MTS '90, c/o J. Spargo & Associates, Inc., 4400 Fair Lakes Court, Fairfax, VA 22033, USA. Telephone: (703) 631-6200. Facsimile: (703) 818-9177. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Assessment and remediation of contaminated sediment (ARCS). III: Development of sediment apparent effect threshold concentrations for selected Great Lakes areas of concern AN - 41499876; 2274481 AU - Inqersoll, C G AU - Buckler AU - Cleveland, L AU - Coyle, J J AU - La Point, TW AU - Mehrle, P M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL KW - U 1500:BIOCHEMISTRY KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41499876?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Assessment+and+remediation+of+contaminated+sediment+%28ARCS%29.+III%3A+Development+of+sediment+apparent+effect+threshold+concentrations+for+selected+Great+Lakes+areas+of+concern&rft.au=Inqersoll%2C+C+G%3BBuckler%3BCleveland%2C+L%3BCoyle%2C+J+J%3BLa+Point%2C+TW%3BMehrle%2C+P+M&rft.aulast=Inqersoll&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Great Lakes Institute, University of Windsor, Windsor, Ont. N9B 3P4, Canada N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Inversion of borehole temperature data for recent climatic changes: Examples from the Alaskan Arctic and Antarctica AN - 41477051; 2284189 AU - Clow, G D AU - Lachenbruch, AH AU - McKay, C P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41477051?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Inversion+of+borehole+temperature+data+for+recent+climatic+changes%3A+Examples+from+the+Alaskan+Arctic+and+Antarctica&rft.au=Clow%2C+G+D%3BLachenbruch%2C+AH%3BMcKay%2C+C+P&rft.aulast=Clow&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Dr. Gunter Weller, Geophysical Institute, University of Alaska, Fairbanks, AK 99775-0800, USA, Abstracts; $10.00 Poster Paper No. EP08 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Laboratory genesis and dissociation of methane clathrate hydrates in silts and sands: Resistivity imaging and acoustic properties AN - 41464423; 3376393 AU - Booth, J S AU - Clennell, M B AU - Pecher, IA AU - Winters, W J AU - Dillon, W P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41464423?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Ontogenetic+Habitat+Shifts+of+Juvenile+Bear+Lake+Sculpin&rft.au=Ruzycki%2C+J+R%3BWurtsbaugh%2C+WA&rft.aulast=Ruzycki&rft.aufirst=J&rft.date=1999-11-01&rft.volume=128&rft.issue=6&rft.spage=1201&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Geological Society, Burlington House, Piccadilly, London W1V 0JU, United Kingdom; phone: 0171 434 9944; fax: 0171 439 8975, Abstracts available. Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Environmental chemistry of selenium. Book presentation (new release) AN - 41456716; 3376943 AU - Engberg, R A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41456716?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Environmental+chemistry+of+selenium.+Book+presentation+%28new+release%29&rft.au=Engberg%2C+R+A&rft.aulast=Engberg&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Selenium-Tellurium Development Association, 301 BorgtstraatB 1850 Grimbergen, , Belgium; phone: +32 2 252 1490; fax: +32 2 252 2775; email: info@stda.be; URL: http://www.stda.be, Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Dynamic water quality modeling of the Catawba river reservoirs AN - 41455869; 3374384 AU - Bales, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41455869?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Dynamic+water+quality+modeling+of+the+Catawba+river+reservoirs&rft.au=Bales%2C+J&rft.aulast=Bales&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Water Resources Research Institute, CB #7912, North Carolina State University, Raleigh, NC 27695-7912, USA, Abstracts available. Price $8 (prepaid). N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Mississippi Valley-type Pb-Zn mineralization during Ordovician arc-continent collision in the Appalachians AN - 41450819; 2148038 AU - Bradley, D C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41450819?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Pollution+Bulletin&rft.atitle=Accumulation+of+Butyltins+in+Sediments+and+Lipid+Tissues+of+the+Asian+Clam%2C+Potamocorbula+amurensis%2C+Near+Mare+Island+Naval+Shipyard%2C+San+Francisco+Bay&rft.au=Pereira%2C+W+E%3BWade%2C+T+L%3BHostettler%2C+F+D%3BParchaso%2C+F&rft.aulast=Pereira&rft.aufirst=W&rft.date=1999-11-01&rft.volume=38&rft.issue=11&rft.spage=1005&rft.isbn=&rft.btitle=&rft.title=Marine+Pollution+Bulletin&rft.issn=0025326X&rft_id=info:doi/10.1016%2FS0025-326X%2899%2900124-1 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Publication Sales, Geological Society of America, P.O. Box 9140, Boulder, CO 80301, USA., Abstracts with Programs, Volume 21, No. 6, ISSN 0016-7592, $20.00 Paper No. 1822 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Detection of unsaturation beneath a water table by seismic refraction AN - 41445935; 2149226 AU - Holzer, T L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41445935?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Detection+of+unsaturation+beneath+a+water+table+by+seismic+refraction&rft.au=Holzer%2C+T+L&rft.aulast=Holzer&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Publication Sales, Geological Society of America, P.O. Box 9140, Boulder, CO 80301, USA., Abstracts with Programs, Volume 21, No. 6, ISSN 0016-7592, $20.00 Paper No. 2410 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Albemarle-Pamlico NAWQA ground-water studies AN - 41445326; 3374387 AU - Spruill, T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41445326?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Albemarle-Pamlico+NAWQA+ground-water+studies&rft.au=Spruill%2C+T&rft.aulast=Spruill&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Water Resources Research Institute, CB #7912, North Carolina State University, Raleigh, NC 27695-7912, USA, Abstracts available. Price $8 (prepaid). N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Linkages among submersed aquatic vegetation, water quality, weather, and discharge in the potomac river and estuary AN - 41440672; 3384284 AU - Rybicki, N AU - Landwehr, J AU - Carter, V AU - Reel, J AU - Ruhl, H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41440672?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Linkages+among+submersed+aquatic+vegetation%2C+water+quality%2C+weather%2C+and+discharge+in+the+potomac+river+and+estuary&rft.au=Rybicki%2C+N%3BLandwehr%2C+J%3BCarter%2C+V%3BReel%2C+J%3BRuhl%2C+H&rft.aulast=Rybicki&rft.aufirst=N&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Society for Limnology and Oceanography, 5400 Bosque Boulevard, Suite 680, Waco, TX 76710-4446, USA; phone: (817) 399-9635; fax: (817) 776-3767; email: business@aslo.org; URL: http://aslo.org/meeting, Abstracts available. Price $15. Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Cenomanian-Turonian boundary event: A difficult choice between causes internal and external to the earth AN - 41434973; 2150866 AU - Force, E R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41434973?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Cenomanian-Turonian+boundary+event%3A+A+difficult+choice+between+causes+internal+and+external+to+the+earth&rft.au=Force%2C+E+R&rft.aulast=Force&rft.aufirst=E&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Publication Sales, Geological Society of America, P.O. Box 9140, Boulder, CO 80301, USA., Abstracts with Programs, Volume 21, No. 6, ISSN 0016-7592, $20.00 Paper No. 23165 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Measuring restoration success: A lesson from Patton's tank tracks AN - 41433984; 3382712 AU - Belnap, J AU - Warren, S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41433984?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Measuring+restoration+success%3A+A+lesson+from+Patton%27s+tank+tracks&rft.au=Belnap%2C+J%3BWarren%2C+S&rft.aulast=Belnap&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Ecological Society of America, Ecology Center, Utah State University, Logan, UT 84322-5205, USA; phone: (801) 797-2555; email: fwagner@cc.usu.edu; URL: http://esa.sdsc.edu/98meet.htm, Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Relationship between fission-track length and fission-track density in apatite AN - 41432222; 2155051 AU - Naeser, C W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41432222?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Relationship+between+fission-track+length+and+fission-track+density+in+apatite&rft.au=Naeser%2C+C+W&rft.aulast=Naeser&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Biogeography&rft.issn=03050270&rft_id=info:doi/10.1046%2Fj.1365-2699.1999.00348.x LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Publication Sales, Geological Society of America, P.O. Box 9140, Boulder, CO 80301, USA., Abstracts with Programs, Volume 21, No. 6, ISSN 0016-7592, $20.00 Paper No. 14257 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Shifting carbon dynamics due to the effects of Bromus tectorum invasion on biological soil crust AN - 41430194; 3383724 AU - Phillips, S L AU - Belnap, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41430194?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Shifting+carbon+dynamics+due+to+the+effects+of+Bromus+tectorum+invasion+on+biological+soil+crust&rft.au=Phillips%2C+S+L%3BBelnap%2C+J&rft.aulast=Phillips&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Ecological Society of America, Ecology Center, Utah State University, Logan, UT 84322-5205, USA; phone: (801) 797-2555; email: fwagner@cc.usu.edu; URL: http://esa.sdsc.edu/98meet.htm, Abstracts available. Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - o@u multiplied by 3 C trends in coal and peat from Borneo: Clue to coal forming environments AN - 41428973; 2149509 AU - Holmes, C W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41428973?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=o%40u+multiplied+by+3+C+trends+in+coal+and+peat+from+Borneo%3A+Clue+to+coal+forming+environments&rft.au=Holmes%2C+C+W&rft.aulast=Holmes&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Publication Sales, Geological Society of America, P.O. Box 9140, Boulder, CO 80301, USA., Abstracts with Programs, Volume 21, No. 6, ISSN 0016-7592, $20.00 Paper No. 12210 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Epiphyte growth, water quality, and submersed aquatic plants in the tidal Potomac River and Estuary AN - 41428820; 3383760 AU - Ruhl, HA AU - Rybicki, N B AU - Carter, V AU - Reel, J T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41428820?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Epiphyte+growth%2C+water+quality%2C+and+submersed+aquatic+plants+in+the+tidal+Potomac+River+and+Estuary&rft.au=Ruhl%2C+HA%3BRybicki%2C+N+B%3BCarter%2C+V%3BReel%2C+J+T&rft.aulast=Ruhl&rft.aufirst=HA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Ecological Society of America, Ecology Center, Utah State University, Logan, UT 84322-5205, USA; phone: (801) 797-2555; email: fwagner@cc.usu.edu; URL: http://esa.sdsc.edu/98meet.htm, Abstracts available. Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Can sublethal concentrations of a herbicide influence tiger salamander life history? AN - 41428185; 3383014 AU - Larson, D L AU - Mc Donald, S AU - Fivizzani, A J AU - Newton, W E AU - Hamilton, S J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41428185?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Can+sublethal+concentrations+of+a+herbicide+influence+tiger+salamander+life+history%3F&rft.au=Larson%2C+D+L%3BMc+Donald%2C+S%3BFivizzani%2C+A+J%3BNewton%2C+W+E%3BHamilton%2C+S+J&rft.aulast=Larson&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Ecological Society of America, Ecology Center, Utah State University, Logan, UT 84322-5205, USA; phone: (801) 797-2555; email: fwagner@cc.usu.edu; URL: http://esa.sdsc.edu/98meet.htm, Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Patterns of initial and continuing tree mortality in mangrove forests following catastrophic disturbance in relation to sediment physicochemical parameters AN - 41426815; 3383247 AU - Smith, TJ III AU - Whelan, K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41426815?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Patterns+of+initial+and+continuing+tree+mortality+in+mangrove+forests+following+catastrophic+disturbance+in+relation+to+sediment+physicochemical+parameters&rft.au=Smith%2C+TJ+III%3BWhelan%2C+K&rft.aulast=Smith&rft.aufirst=TJ&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Ecological Society of America, Ecology Center, Utah State University, Logan, UT 84322-5205, USA; phone: (801) 797-2555; email: fwagner@cc.usu.edu; URL: http://esa.sdsc.edu/98meet.htm, Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Does grazing really increase plant species richness and enhance invasion by exotic plants? AN - 41422720; 3383264 AU - Stohlgren, T J AU - Schell, L D AU - Vanden Heuvel, B Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41422720?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Does+grazing+really+increase+plant+species+richness+and+enhance+invasion+by+exotic+plants%3F&rft.au=Stohlgren%2C+T+J%3BSchell%2C+L+D%3BVanden+Heuvel%2C+B&rft.aulast=Stohlgren&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Ecological Society of America, Ecology Center, Utah State University, Logan, UT 84322-5205, USA; phone: (801) 797-2555; email: fwagner@cc.usu.edu; URL: http://esa.sdsc.edu/98meet.htm, Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Chloride cells and impaired osmoregulation in juvenile American shad AN - 41420908; 3362310 AU - Zydlewski, J AU - McCormick, S D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41420908?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Chloride+cells+and+impaired+osmoregulation+in+juvenile+American+shad&rft.au=Zydlewski%2C+J%3BMcCormick%2C+S+D&rft.aulast=Zydlewski&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SICB, 401 North Michigan Avenue, Chicago, IL 60611-4267, USA, Abstracts available. Price $45 (USA),$47 (Canada),$50 other countries. Paper No. 303 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Identification and distribution of cotton rats, genus Sigmodon (Muridae: Sigmodontinae), of Nayarit, Mexico AN - 41417181; 3392691 AU - Fisher, R D AU - Carleton, MD AU - Gardner, AL Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41417181?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Identification+and+distribution+of+cotton+rats%2C+genus+Sigmodon+%28Muridae%3A+Sigmodontinae%29%2C+of+Nayarit%2C+Mexico&rft.au=Fisher%2C+R+D%3BCarleton%2C+MD%3BGardner%2C+AL&rft.aulast=Fisher&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Virginia Polytechnic Institute and State University, Biology Department, Blacksburg, VA 24060, USA, Abstracts and programs available. $6 and $2, respectively, plus postage. Both for $7.50 plus postage. Paper No. 224 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Photoenhanced toxicity of a distilled petroleum product and a pesticide to aquatic organisms AN - 41415663; 3384419 AU - Little, EE AU - Hurtubise, L AU - Cleveland, L AU - Fabacher, D AU - Zaga, A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41415663?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Photoenhanced+toxicity+of+a+distilled+petroleum+product+and+a+pesticide+to+aquatic+organisms&rft.au=Madenjian%2C+C+P%3BSchmidt%2C+L+J%3BChernyak%2C+S+M%3BElliott%2C+R+F%3BDesorcie%2C+T+J%3BQuintal%2C+R+T%3BBegnoche%2C+L+J%3BHesselberg%2C+R+J&rft.aulast=Madenjian&rft.aufirst=C&rft.date=1999-11-01&rft.volume=33&rft.issue=21&rft.spage=3768&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes9903882 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Society for Limnology and Oceanography, 5400 Bosque Boulevard, Suite 680, Waco, TX 76710-4446, USA; phone: (817) 399-9635; fax: (817) 776-3767; email: business@aslo.org; URL: http://aslo.org/meeting, Abstracts available. Price $15. Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Intercomparison test of an RD Instruments' workhorse ADCP mounted in a new trawl-resistant bottom mount, an RD Instruments' broadband ADCP and a vector measuring current meter AN - 41413078; 3369084 AU - Martini, M AU - Clay, P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41413078?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Intercomparison+test+of+an+RD+Instruments%27+workhorse+ADCP+mounted+in+a+new+trawl-resistant+bottom+mount%2C+an+RD+Instruments%27+broadband+ADCP+and+a+vector+measuring+current+meter&rft.au=Martini%2C+M%3BClay%2C+P&rft.aulast=Martini&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Spearhead Exhibitions, Ltd., Ocean House, 50 Kingston Road, New Malden, Surrey KT3 3LZ, United Kingdom, Full papers available (3 volumes). 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N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Risk analysis of exotic invasions using qualitative mathematical analysis AN - 41407898; 3388183 AU - Li, H W AU - Castillo, G AU - Gresswell, R AU - Rossignol, P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41407898?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Risk+analysis+of+exotic+invasions+using+qualitative+mathematical+analysis&rft.au=Li%2C+H+W%3BCastillo%2C+G%3BGresswell%2C+R%3BRossignol%2C+P&rft.aulast=Li&rft.aufirst=H&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: North American Benthological Society, P.O. Box 1897, Lawrence, KS 66044-8897, USA; phone: (913) 843-1221; fax: (913) 843-1274; URL: http://www.benthos.org/index.asp, Abstracts available. No charge. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Stable isotope ratio signatures of aquatic food web elements compared among wetland and pelagic ecosystems AN - 41402495; 3382990 AU - Keough, J R AU - Brazner, J AU - Schneider, P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41402495?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Stable+isotope+ratio+signatures+of+aquatic+food+web+elements+compared+among+wetland+and+pelagic+ecosystems&rft.au=Keough%2C+J+R%3BBrazner%2C+J%3BSchneider%2C+P&rft.aulast=Keough&rft.aufirst=J&rft.date=2000-12-31&rft.volume=44&rft.issue=3&rft.spage=227&rft.isbn=&rft.btitle=&rft.title=Ecotoxicology+and+Environmental+Safety&rft.issn=01476513&rft_id=info:doi/10.1006%2Feesa.1999.1833 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Ecological Society of America, Ecology Center, Utah State University, Logan, UT 84322-5205, USA; phone: (801) 797-2555; email: fwagner@cc.usu.edu; URL: http://esa.sdsc.edu/98meet.htm, Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effect of migration distance on whole body and tissue-specific energy use in American shad (Alosa sapidissima) AN - 41402040; 3362306 AU - Leonard, JBK AU - McCormick, S D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41402040?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effect+of+migration+distance+on+whole+body+and+tissue-specific+energy+use+in+American+shad+%28Alosa+sapidissima%29&rft.au=Leonard%2C+JBK%3BMcCormick%2C+S+D&rft.aulast=Leonard&rft.aufirst=JBK&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SICB, 401 North Michigan Avenue, Chicago, IL 60611-4267, USA, Abstracts available. Price $45 (USA),$47 (Canada),$50 other countries. Paper No. 299 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effect of high aluminum consumption on the furculae of free-ranging coots AN - 41401615; 3362376 AU - Hui, CA AU - Ellers, O W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41401615?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effect+of+high+aluminum+consumption+on+the+furculae+of+free-ranging+coots&rft.au=Hui%2C+CA%3BEllers%2C+O+W&rft.aulast=Hui&rft.aufirst=CA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SICB, 401 North Michigan Avenue, Chicago, IL 60611-4267, USA, Abstracts available. Price $45 (USA),$47 (Canada),$50 other countries. Paper No. 368 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Climate changes, elk population changes, elk herbivory, and willow relations in two western national parks: Rocky Mountain and Yellowstone AN - 41397697; 3383233 AU - Singer, F J AU - Zeigenfuss, L AU - Cates, R G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41397697?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Applications&rft.atitle=Reference+conditions+for+giant+sequoia+forest+restoration%3A+Structure%2C+process%2C+and+precision&rft.au=Stephenson%2C+N+L&rft.aulast=Stephenson&rft.aufirst=N&rft.date=1999-11-01&rft.volume=9&rft.issue=4&rft.spage=1253&rft.isbn=&rft.btitle=&rft.title=Ecological+Applications&rft.issn=10510761&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Ecological Society of America, Ecology Center, Utah State University, Logan, UT 84322-5205, USA; phone: (801) 797-2555; email: fwagner@cc.usu.edu; URL: http://esa.sdsc.edu/98meet.htm, Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Changes in the growth hormone/insulin-like growth factor I axis during smolting of Atlantic salmon in the wild AN - 41396062; 3362569 AU - McCormick, S D AU - Bjornsson, BTh AU - Moriyama, S AU - Duan, C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41396062?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Changes+in+the+growth+hormone%2Finsulin-like+growth+factor+I+axis+during+smolting+of+Atlantic+salmon+in+the+wild&rft.au=McCormick%2C+S+D%3BBjornsson%2C+BTh%3BMoriyama%2C+S%3BDuan%2C+C&rft.aulast=McCormick&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SICB, 401 North Michigan Avenue, Chicago, IL 60611-4267, USA, Abstracts available. Price $45 (USA),$47 (Canada),$50 other countries. Paper No. 563 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Highway mortality and deer population dynamics: Using models to tailor mitigative efforts and achieve desired population responses AN - 41394547; 3383381 AU - Bissonette, JA AU - Lehnert, ME Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41394547?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Highway+mortality+and+deer+population+dynamics%3A+Using+models+to+tailor+mitigative+efforts+and+achieve+desired+population+responses&rft.au=Bissonette%2C+JA%3BLehnert%2C+ME&rft.aulast=Bissonette&rft.aufirst=JA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Ecological Society of America, Ecology Center, Utah State University, Logan, UT 84322-5205, USA; phone: (801) 797-2555; email: fwagner@cc.usu.edu; URL: http://esa.sdsc.edu/98meet.htm, Abstracts available. Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Experimental design for examining the influence of environmental factors on downstream migratory behavior AN - 41391507; 3362126 AU - Barbin, G P AU - McCormick, S D AU - Haro, A J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41391507?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Experimental+design+for+examining+the+influence+of+environmental+factors+on+downstream+migratory+behavior&rft.au=Barbin%2C+G+P%3BMcCormick%2C+S+D%3BHaro%2C+A+J&rft.aulast=Barbin&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SICB, 401 North Michigan Avenue, Chicago, IL 60611-4267, USA, Abstracts available. Price $45 (USA),$47 (Canada),$50 other countries. Paper No. 117 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Vegetation response to an experimental drawdown in Three Pools, Upper Mississippi River AN - 41386940; 3384220 AU - Wolsinski, J H AU - Rogala, J T AU - Dalrymple, K L AU - Busse, D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41386940?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Vegetation+response+to+an+experimental+drawdown+in+Three+Pools%2C+Upper+Mississippi+River&rft.au=Wolsinski%2C+J+H%3BRogala%2C+J+T%3BDalrymple%2C+K+L%3BBusse%2C+D&rft.aulast=Wolsinski&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Society for Limnology and Oceanography, 5400 Bosque Boulevard, Suite 680, Waco, TX 76710-4446, USA; phone: (817) 399-9635; fax: (817) 776-3767; email: business@aslo.org; URL: http://aslo.org/meeting, Abstracts available. Price $15. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Hibernation temperatures and behavior of Gopherus agassizii in the northeast Mojave Desert AN - 41364587; 3336539 AU - Haines, D F AU - Esque, T C AU - Tracy, C R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41364587?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Hibernation+temperatures+and+behavior+of+Gopherus+agassizii+in+the+northeast+Mojave+Desert&rft.au=Haines%2C+D+F%3BEsque%2C+T+C%3BTracy%2C+C+R&rft.aulast=Haines&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: University of Washington, College of Fisheries, Seattle, WA 98195, Contact individual authors directly, or search abstracts on the www at http://artedi.fish.washington.edu/cgi-bin/asigate N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Habitat saturation and lek evolution in dwarf-tyrant manakins (Tyranneutes stolzmanni) AN - 41362219; 3349352 AU - Foster Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 3500:Clinical Medicine UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41362219?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Habitat+saturation+and+lek+evolution+in+dwarf-tyrant+manakins+%28Tyranneutes+stolzmanni%29&rft.au=Foster&rft.aulast=Foster&rft.aufirst=&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Blackwell Science, Inc., Commerce Place, 350 Main Street, Malden, MA 02148-5018 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Toxicity assessment of contaminants associated with sediments from lower Lake Michigan. I: A comparison of acute and chronic test methods with amphipods and midge AN - 41354641; 1935531 AU - Ingersoll, C G AU - Nelson, M K AU - Burton, G A AU - Stemmer, B AU - Winks, K C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41354641?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Toxicity+assessment+of+contaminants+associated+with+sediments+from+lower+Lake+Michigan.+I%3A+A+comparison+of+acute+and+chronic+test+methods+with+amphipods+and+midge&rft.au=Ingersoll%2C+C+G%3BNelson%2C+M+K%3BBurton%2C+G+A%3BStemmer%2C+B%3BWinks%2C+K+C&rft.aulast=Ingersoll&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC, 1133 15th Street NW, Suite 1000, Washington, DC 20005 (USA). Telephone: 202 785 2778. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Cartographically based risk assessment of the impacts of contaminated sediments on the natural resources of the Mobile Bay Estuary, Alabama AN - 41351481; 1936275 AU - Roscigno, P F AU - Watzin, M C AU - Scurry, J D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41351481?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Cartographically+based+risk+assessment+of+the+impacts+of+contaminated+sediments+on+the+natural+resources+of+the+Mobile+Bay+Estuary%2C+Alabama&rft.au=Roscigno%2C+P+F%3BWatzin%2C+M+C%3BScurry%2C+J+D&rft.aulast=Roscigno&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC, 1133 15th Street NW, Suite 1000, Washington, DC 20005 (USA). Telephone: 202 785 2778. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Diel patterns of larval fish abundance in the lower Columbia and Deschutes rivers AN - 41350734; 3336466 AU - Gadomski, D M AU - Barfoot, CA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41350734?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Diel+patterns+of+larval+fish+abundance+in+the+lower+Columbia+and+Deschutes+rivers&rft.au=Gadomski%2C+D+M%3BBarfoot%2C+CA&rft.aulast=Gadomski&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: University of Washington, College of Fisheries, Seattle, WA 98195, Contact individual authors directly, or search abstracts on the www at http://artedi.fish.washington.edu/cgi-bin/asigate N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Common ground under the wilderness act AN - 41350425; 3327410 AU - Matthews, S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41350425?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Common+ground+under+the+wilderness+act&rft.au=Matthews%2C+S&rft.aulast=Matthews&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Fisheries Society, 5410 Grosvenor Lane #110, Bethesda, MD 20814. Phone: 301-897-8616 ext. 200; Fax: 301-897-8096, Abstracts available. Price $15. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Choosing the right marker for the right job: Comparative analyses using alternative nuclear genetic markers AN - 41350006; 3336961 AU - Scribner, K T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41350006?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Choosing+the+right+marker+for+the+right+job%3A+Comparative+analyses+using+alternative+nuclear+genetic+markers&rft.au=Scribner%2C+K+T&rft.aulast=Scribner&rft.aufirst=K&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: University of Washington, College of Fisheries, Seattle, WA 98195, Contact individual authors directly, or search abstracts on the www at http://artedi.fish.washington.edu/cgi-bin/asigate N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Environmental risk assessment approach to wildlife research AN - 41348742; 1937151 AU - Hall, R J AU - Rattner, BA AU - Whitworth, M R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41348742?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Environmental+risk+assessment+approach+to+wildlife+research&rft.au=Hall%2C+R+J%3BRattner%2C+BA%3BWhitworth%2C+M+R&rft.aulast=Hall&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC, 1133 15th Street NW, Suite 1000, Washington, DC 20005 (USA). Telephone: 202 785 2778. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Can complete genetic integrity of populations be maintained in captivity? AN - 41348457; 3336266 AU - Brown, G AU - Rubin, S AU - Hensleigh, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41348457?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Can+complete+genetic+integrity+of+populations+be+maintained+in+captivity%3F&rft.au=Brown%2C+G%3BRubin%2C+S%3BHensleigh%2C+J&rft.aulast=Brown&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: University of Washington, College of Fisheries, Seattle, WA 98195, Contact individual authors directly, or search abstracts on the www at http://artedi.fish.washington.edu/cgi-bin/asigate N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Restoration of boreal toad Bufo boreas boreas populations in Rocky Mountain National Park AN - 41347530; 3336800 AU - Muths, E AU - Corn, P S AU - Johnson, T L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41347530?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Restoration+of+boreal+toad+Bufo+boreas+boreas+populations+in+Rocky+Mountain+National+Park&rft.au=Muths%2C+E%3BCorn%2C+P+S%3BJohnson%2C+T+L&rft.aulast=Muths&rft.aufirst=E&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: University of Washington, College of Fisheries, Seattle, WA 98195, Contact individual authors directly, or search abstracts on the www at http://artedi.fish.washington.edu/cgi-bin/asigate N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Partitioning and speciation of soluble and adsorbed selenium in soils AN - 41346857; 1979232 AU - Fujii, R AU - Fio, J L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41346857?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Partitioning+and+speciation+of+soluble+and+adsorbed+selenium+in+soils&rft.au=Fujii%2C+R%3BFio%2C+J+L&rft.aulast=Fujii&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASA, 677 South Segoe Road, Madison, WI 53711 (USA). Telephone: (608)-273-8080., Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Dietary effects of Al, Ca, and P on black duck and Mallard ducklings AN - 41345247; 1936328 AU - Sparling, D W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41345247?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Dietary+effects+of+Al%2C+Ca%2C+and+P+on+black+duck+and+Mallard+ducklings&rft.au=Sparling%2C+D+W&rft.aulast=Sparling&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC, 1133 15th Street NW, Suite 1000, Washington, DC 20005 (USA). 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N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Genetic variability of Connecticut River Atlantic salmon and potential for a genetic mark to identify tributary of origin AN - 41343107; 3326833 AU - Letcher, B H AU - King, T L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41343107?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Genetic+variability+of+Connecticut+River+Atlantic+salmon+and+potential+for+a+genetic+mark+to+identify+tributary+of+origin&rft.au=Letcher%2C+B+H%3BKing%2C+T+L&rft.aulast=Letcher&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Fisheries Society, 5410 Grosvenor Lane #110, Bethesda, MD 20814. Phone: 301-897-8616 ext. 200; Fax: 301-897-8096, Abstracts available. Price $15. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Mercury investigation of Maine lake trout: Age and growth effects and influence of hatchery introductions AN - 41342065; 3344216 AU - Haines, T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41342065?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Mercury+investigation+of+Maine+lake+trout%3A+Age+and+growth+effects+and+influence+of+hatchery+introductions&rft.au=Haines%2C+T&rft.aulast=Haines&rft.aufirst=T&rft.date=2000-12-31&rft.volume=242&rft.issue=2&rft.spage=245&rft.isbn=&rft.btitle=&rft.title=Journal+of+Experimental+Marine+Biology+and+Ecology&rft.issn=00220981&rft_id=info:doi/10.1016%2FS0022-0981%2899%2900102-1 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Department of Inland Fisheries and Wildlife, State of Maine, Fisheries Research Office, 650 State Street, Bangor, ME 04401 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Use of image analysis for morphometric investigation of chiselmouth and northern squawfish larvae AN - 41340163; 3336213 AU - Bayer, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41340163?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Use+of+image+analysis+for+morphometric+investigation+of+chiselmouth+and+northern+squawfish+larvae&rft.au=Bayer%2C+J&rft.aulast=Bayer&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: University of Washington, College of Fisheries, Seattle, WA 98195, Contact individual authors directly, or search abstracts on the www at http://artedi.fish.washington.edu/cgi-bin/asigate N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Status of declining amphibians in California, USA AN - 41339808; 3330474 AU - Fellers, G M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41339808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Status+of+declining+amphibians+in+California%2C+USA&rft.au=Fellers%2C+G+M&rft.aulast=Fellers&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Czech Medical Association, J.E. Purkyse, Sokolska' 31, 12026 Prague, Czech Republic, Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Toxicity of organotins to Mallard ducklings AN - 41338717; 1937143 AU - Fleming, W J AU - Hill, E F AU - Momot, J J AU - Pang, V F Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41338717?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Toxicity+of+organotins+to+Mallard+ducklings&rft.au=Fleming%2C+W+J%3BHill%2C+E+F%3BMomot%2C+J+J%3BPang%2C+V+F&rft.aulast=Fleming&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/10.1021%2Fes9811997 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC, 1133 15th Street NW, Suite 1000, Washington, DC 20005 (USA). Telephone: 202 785 2778. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Future activities AN - 41337667; 1939614 AU - Morrison, J L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41337667?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Future+activities&rft.au=Morrison%2C+J+L&rft.aulast=Morrison&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: GIS/LIS '88, 210 Little Falls Street, Falls Church, VA 22046 (USA). Telephone: 703 241 2446. Fax: 703 533 9614. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Growth and mortality of age-0 northern squawfish Ptychocheilus oregonensis in the John Day Reservoir, Columbia River AN - 41337513; 3336201 AU - Barfoot, CA AU - Wertheimer, R H AU - Gadomski, D M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41337513?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Growth+and+mortality+of+age-0+northern+squawfish+Ptychocheilus+oregonensis+in+the+John+Day+Reservoir%2C+Columbia+River&rft.au=Barfoot%2C+CA%3BWertheimer%2C+R+H%3BGadomski%2C+D+M&rft.aulast=Barfoot&rft.aufirst=CA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: University of Washington, College of Fisheries, Seattle, WA 98195, Contact individual authors directly, or search abstracts on the www at http://artedi.fish.washington.edu/cgi-bin/asigate N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Century of rainbow trout culture AN - 41337221; 3327099 AU - Aloisi, D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41337221?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Century+of+rainbow+trout+culture&rft.au=Aloisi%2C+D&rft.aulast=Aloisi&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Fisheries Society, 5410 Grosvenor Lane #110, Bethesda, MD 20814. Phone: 301-897-8616 ext. 200; Fax: 301-897-8096, Abstracts available. Price $15. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Designing Geographic Information System technology for global climate-change research AN - 41337101; 1939603 AU - Steyaert, L T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41337101?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Designing+Geographic+Information+System+technology+for+global+climate-change+research&rft.au=Steyaert%2C+L+T&rft.aulast=Steyaert&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: GIS/LIS '88, 210 Little Falls Street, Falls Church, VA 22046 (USA). Telephone: 703 241 2446. Fax: 703 533 9614. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effects of arsenic (As) on mallard duckling growth and physiology AN - 41335391; 1940304 AU - Camardese, M B AU - Hoffman, D J AU - LeCaptain, L J AU - Pendleton, G W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41335391?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effects+of+arsenic+%28As%29+on+mallard+duckling+growth+and+physiology&rft.au=Camardese%2C+M+B%3BHoffman%2C+D+J%3BLeCaptain%2C+L+J%3BPendleton%2C+G+W&rft.aulast=Camardese&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC, 1133 15th Street NW, Suite 1000, Washington, DC 20005 (USA). Telephone: 202 785 2778., Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Achieving healthy Pacific salmon populations: Interfacing creative biology, science, and management AN - 41333330; 3327364 AU - Knudsen, E Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41333330?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Achieving+healthy+Pacific+salmon+populations%3A+Interfacing+creative+biology%2C+science%2C+and+management&rft.au=Knudsen%2C+E&rft.aulast=Knudsen&rft.aufirst=E&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Fisheries Society, 5410 Grosvenor Lane #110, Bethesda, MD 20814. Phone: 301-897-8616 ext. 200; Fax: 301-897-8096, Abstracts available. Price $15. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Limited dietary protein as a nutritional constraint on omnivorous and herbivorous neonate turtles AN - 41332804; 3330296 AU - Avery, H W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41332804?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Limited+dietary+protein+as+a+nutritional+constraint+on+omnivorous+and+herbivorous+neonate+turtles&rft.au=Avery%2C+H+W&rft.aulast=Avery&rft.aufirst=H&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Czech Medical Association, J.E. Purkyse, Sokolska' 31, 12026 Prague, Czech Republic, Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Ion exchange fertilizers: Controlled release of nutrients from mixtures of zeolite and phosphate rock AN - 41330831; 1989120 AU - Eberl, D D AU - Lai, T M AU - Barbarick, KA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41330831?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Ion+exchange+fertilizers%3A+Controlled+release+of+nutrients+from+mixtures+of+zeolite+and+phosphate+rock&rft.au=Eberl%2C+D+D%3BLai%2C+T+M%3BBarbarick%2C+KA&rft.aulast=Eberl&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASA, 677 South Segoe Road, Madison, WI 53711 (USA). 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N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effects of alien plant invasions, wildfire, and habitat change on the desert tortoise Gopherus agassizii AN - 41330299; 3336431 AU - Esque, T C AU - Montijo, AB AU - Schwalbe, C R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41330299?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effects+of+alien+plant+invasions%2C+wildfire%2C+and+habitat+change+on+the+desert+tortoise+Gopherus+agassizii&rft.au=Esque%2C+T+C%3BMontijo%2C+AB%3BSchwalbe%2C+C+R&rft.aulast=Esque&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: University of Washington, College of Fisheries, Seattle, WA 98195, Contact individual authors directly, or search abstracts on the www at http://artedi.fish.washington.edu/cgi-bin/asigate N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Baltimore Gneiss re-revisited: New shrimp (zircon) and conventional (titanite) U-Pb ages AN - 41329381; 3314006 AU - Aleinikoff, J N AU - Fanning, C M AU - Horton, JW Jr AU - Drake, AA Jr AU - Sayer, R R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41329381?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Baltimore+Gneiss+re-revisited%3A+New+shrimp+%28zircon%29+and+conventional+%28titanite%29+U-Pb+ages&rft.au=Aleinikoff%2C+J+N%3BFanning%2C+C+M%3BHorton%2C+JW+Jr%3BDrake%2C+AA+Jr%3BSayer%2C+R+R&rft.aulast=Aleinikoff&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Association of Canada, Department of Earth Sciences, Memorial University of Newfoundland, St. John's, Newfoundland AI B 3A5, Canada, Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Survival rates of adult lake trout in northwestern Lake Michigan, 1983-1993 AN - 41328275; 3326764 AU - Fabrizio, M C AU - Holey, ME AU - McKee, P C AU - Toneys, M L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41328275?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Survival+rates+of+adult+lake+trout+in+northwestern+Lake+Michigan%2C+1983-1993&rft.au=Fabrizio%2C+M+C%3BHoley%2C+ME%3BMcKee%2C+P+C%3BToneys%2C+M+L&rft.aulast=Fabrizio&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Fisheries Society, 5410 Grosvenor Lane #110, Bethesda, MD 20814. Phone: 301-897-8616 ext. 200; Fax: 301-897-8096, Abstracts available. Price $15. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Role of environmental factors and stocking of hatchery fish on mercury concentration in brook trout and smallmouth bass from Maine lakes AN - 41327519; 3326793 AU - Haines, T AU - Stafford, C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41327519?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Role+of+environmental+factors+and+stocking+of+hatchery+fish+on+mercury+concentration+in+brook+trout+and+smallmouth+bass+from+Maine+lakes&rft.au=Haines%2C+T%3BStafford%2C+C&rft.aulast=Haines&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Fisheries Society, 5410 Grosvenor Lane #110, Bethesda, MD 20814. Phone: 301-897-8616 ext. 200; Fax: 301-897-8096, Abstracts available. Price $15. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effects of simulated episodic pH depressions and aluminum on whole-body ions of brook trout AN - 41322467; 1937419 AU - Cleveland, L AU - Ingersoll, C G AU - Buckler Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41322467?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effects+of+simulated+episodic+pH+depressions+and+aluminum+on+whole-body+ions+of+brook+trout&rft.au=Cleveland%2C+L%3BIngersoll%2C+C+G%3BBuckler&rft.aulast=Cleveland&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC, 1133 15th Street NW, Suite 1000, Washington, DC 20005 (USA). Telephone: 202 785 2778., Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Ecological impacts of potentially carcinogenic sediments to Great Lakes biota AN - 41318642; 1936789 AU - Smith, S B Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41318642?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Ecological+impacts+of+potentially+carcinogenic+sediments+to+Great+Lakes+biota&rft.au=Smith%2C+S+B&rft.aulast=Smith&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC, 1133 15th Street NW, Suite 1000, Washington, DC 20005 (USA). Telephone: 202 785 2778. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effects of herbicides used in the Chesapeake Bay watershed, Maryland on sago pondweed (Potamageton pectinatus ), a submerged aquatic macrophyte AN - 41318037; 1940090 AU - Fleming, W J AU - Momot, J J AU - Ailstock, S M AU - Norman, C M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41318037?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effects+of+herbicides+used+in+the+Chesapeake+Bay+watershed%2C+Maryland+on+sago+pondweed+%28Potamageton+pectinatus+%29%2C+a+submerged+aquatic+macrophyte&rft.au=Fleming%2C+W+J%3BMomot%2C+J+J%3BAilstock%2C+S+M%3BNorman%2C+C+M&rft.aulast=Fleming&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC, 1133 15th Street NW, Suite 1000, Washington, DC 20005 (USA). Telephone: 202 785 2778. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Formulation affects uptake and toxicity of anticholinesterases in birds AN - 41314457; 1936694 AU - Hill, E F Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41314457?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Formulation+affects+uptake+and+toxicity+of+anticholinesterases+in+birds&rft.au=Hill%2C+E+F&rft.aulast=Hill&rft.aufirst=E&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC, 1133 15th Street NW, Suite 1000, Washington, DC 20005 (USA). Telephone: 202 785 2778. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effects of dietary and waterborne selenium on the reproductive success of bluegill sunfish (Lepomis macrochirus ) AN - 41313017; 1935763 AU - Coyle, J J AU - Ingersoll, C G AU - Buckler AU - May, T W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41313017?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effects+of+dietary+and+waterborne+selenium+on+the+reproductive+success+of+bluegill+sunfish+%28Lepomis+macrochirus+%29&rft.au=Coyle%2C+J+J%3BIngersoll%2C+C+G%3BBuckler%3BMay%2C+T+W&rft.aulast=Coyle&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC, 1133 15th Street NW, Suite 1000, Washington, DC 20005 (USA). Telephone: 202 785 2778., Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Digital terrain data, a meaningful use or misuse of topographic information AN - 41306382; 1939385 AU - Desawal, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41306382?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Digital+terrain+data%2C+a+meaningful+use+or+misuse+of+topographic+information&rft.au=Desawal%2C+R&rft.aulast=Desawal&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: GIS/LIS '88, 210 Little Falls Street, Falls Church, VA 22046 (USA). Telephone: 703 241 2446. Fax: 703 533 9614. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Geologic setting of the El Salvador (CHILE) porphyry Cu deposit AN - 41297559; 3314778 AU - Tosdal, R M AU - Cornejo, P AU - Mpodozis, C AU - Rivera, O AU - Tomlinson, A J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41297559?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Geologic+setting+of+the+El+Salvador+%28CHILE%29+porphyry+Cu+deposit&rft.au=Tosdal%2C+R+M%3BCornejo%2C+P%3BMpodozis%2C+C%3BRivera%2C+O%3BTomlinson%2C+A+J&rft.aulast=Tosdal&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Association of Canada, Department of Earth Sciences, Memorial University of Newfoundland, St. John's, Newfoundland AI B 3A5, Canada, Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Recent observations on Hubbard Glacier, Alaska AN - 41297489; 1950529 AU - Trabant, D C AU - Krimmel, R M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:BIOLOGY GENERAL UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41297489?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Regulated+Rivers%3A+Research+%26+Management&rft.atitle=Rodent+use+of+anthropogenic+and+%27natural%27+desert+riparian+habitat%2C+lower+Colorado+River%2C+Arizona&rft.au=Andersen%2C+D+C%3BNelson%2C+S+M&rft.aulast=Andersen&rft.aufirst=D&rft.date=1999-10-01&rft.volume=15&rft.issue=5&rft.spage=377&rft.isbn=&rft.btitle=&rft.title=Regulated+Rivers%3A+Research+%26+Management&rft.issn=08869375&rft_id=info:doi/10.1002%2F%28SICI%291099-1646%28199909%2F10%2915%3A53.3.CO%3B2-H LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Arctic Division, American Association for the Advancement of Science, P.O. Box 80271, Fairbanks, AK 99708 (USA)., Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Overview of the standard AN - 41297420; 1939609 AU - Fegeas, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41297420?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Overview+of+the+standard&rft.au=Fegeas%2C+R&rft.aulast=Fegeas&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: GIS/LIS '88, 210 Little Falls Street, Falls Church, VA 22046 (USA). Telephone: 703 241 2446. Fax: 703 533 9614. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Application of the LI-COR CO sub(2) analyzer to volcanic plumes: A case study, Volcan Popocatepetl, Mexico, June 7 and 10, 1995 AN - 41286701; 3298521 AU - Gerlach, T M AU - McGee, KA AU - Doukas, M P AU - Delgado, H AU - Venegas, J J AU - Cardenas, L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41286701?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Application+of+the+LI-COR+CO+sub%282%29+analyzer+to+volcanic+plumes%3A+A+case+study%2C+Volcan+Popocatepetl%2C+Mexico%2C+June+7+and+10%2C+1995&rft.au=Gerlach%2C+T+M%3BMcGee%2C+KA%3BDoukas%2C+M+P%3BDelgado%2C+H%3BVenegas%2C+J+J%3BCardenas%2C+L&rft.aulast=Gerlach&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Paper No. V22D-10 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Testing prediction methods: Earthquake clustering versus the Poisson model AN - 41285353; 3295980 AU - Michael, A J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41285353?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Testing+prediction+methods%3A+Earthquake+clustering+versus+the+Poisson+model&rft.au=Michael%2C+A+J&rft.aulast=Michael&rft.aufirst=A&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. S72A-7 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Internal waves on the northern California continental slope-model and measurements AN - 41284632; 3295027 AU - Cacchione, D AU - Wong, F AU - Sternberg, R AU - Ogston, A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41284632?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Internal+waves+on+the+northern+California+continental+slope-model+and+measurements&rft.au=Cacchione%2C+D%3BWong%2C+F%3BSternberg%2C+R%3BOgston%2C+A&rft.aulast=Cacchione&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. OG41B-15 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Are the Humboldt Slide blocks slide blocks or antidunes? AN - 41284147; 3295022 AU - Gardner, J V AU - Field, ME AU - Lee, Homa AU - Prior, D B Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41284147?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Are+the+Humboldt+Slide+blocks+slide+blocks+or+antidunes%3F&rft.au=Gardner%2C+J+V%3BField%2C+ME%3BLee%2C+Homa%3BPrior%2C+D+B&rft.aulast=Gardner&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. OG41B-10 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Bootstrap position analysis to forecast drought risks for a water supply system AN - 41283893; 3293920 AU - Tasker, G D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41283893?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Bootstrap+position+analysis+to+forecast+drought+risks+for+a+water+supply+system&rft.au=Tasker%2C+G+D&rft.aulast=Tasker&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. H71C-4 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - 1996 seismicity and ground deformation at Akutan Volcano, Alaska AN - 41280172; 3296368 AU - Power, JA AU - Paskievitch, J F AU - Richter, D H AU - McGimsey, R G AU - Stelling, P AU - Jolly, AD AU - Fletcher, HJ Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41280172?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=1996+seismicity+and+ground+deformation+at+Akutan+Volcano%2C+Alaska&rft.au=Power%2C+JA%3BPaskievitch%2C+J+F%3BRichter%2C+D+H%3BMcGimsey%2C+R+G%3BStelling%2C+P%3BJolly%2C+AD%3BFletcher%2C+HJ&rft.aulast=Power&rft.aufirst=JA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Paper No. S32C-11 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Long and short-term trends in SO sub(2) emissions at Kilauea volcano, Hawaii 1993-1996 AN - 41280151; 3298451 AU - Elias, T AU - Sutton, A J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41280151?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Long+and+short-term+trends+in+SO+sub%282%29+emissions+at+Kilauea+volcano%2C+Hawaii+1993-1996&rft.au=Elias%2C+T%3BSutton%2C+A+J&rft.aulast=Elias&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Paper No. V21E-13 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Modeling controlled floods in the Colorado River drainage system for habitat maintenance purposes AN - 41279129; 3294517 AU - Dungan Smith, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41279129?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Modeling+controlled+floods+in+the+Colorado+River+drainage+system+for+habitat+maintenance+purposes&rft.au=Dungan+Smith%2C+J&rft.aulast=Dungan+Smith&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Paper No. H32D-2 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Topographic-coordinate transformation - A new analytic solution method for nonlinear landform PDEs AN - 41278834; 3294468 AU - Peckham, S D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41278834?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Topographic-coordinate+transformation+-+A+new+analytic+solution+method+for+nonlinear+landform+PDEs&rft.au=Peckham%2C+S+D&rft.aulast=Peckham&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. H32A-6 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Right-stepping geometry of the San Andreas and San Gregorio faults and persistent normal faulting in the 1906 San Francisco earthquake epicentral area AN - 41278357; 3298080 AU - Zoback, M L AU - Jachens, R C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41278357?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Right-stepping+geometry+of+the+San+Andreas+and+San+Gregorio+faults+and+persistent+normal+faulting+in+the+1906+San+Francisco+earthquake+epicentral+area&rft.au=Zoback%2C+M+L%3BJachens%2C+R+C&rft.aulast=Zoback&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. T41B-4 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Sea-floor sediments in the Gulf of Alaska: New map compilations for studies of benthic biohabitats AN - 41277998; 3295612 AU - Evans, K R AU - Stevenson, A J AU - Barnes, P W AU - Carlson, PR AU - Hampton, MA AU - Marlow Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41277998?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Wildlife+Management&rft.atitle=Water+and+sediment+characteristics+associated+with+avian+botulism+outbreaks+in+wetlands&rft.au=Rocke%2C+TE%3BSamuel%2C+MD&rft.aulast=Rocke&rft.aufirst=TE&rft.date=1999-10-01&rft.volume=63&rft.issue=4&rft.spage=1249&rft.isbn=&rft.btitle=&rft.title=Journal+of+Wildlife+Management&rft.issn=0022541X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. OS22A-2 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Another slow earthquake on the San Andreas fault triggered by a M4.7 earthquake on April 19, 1996 AN - 41275132; 3296376 AU - Johnston, MJS AU - Gwyther, R AU - Linde, A T AU - Gladwin, M AU - Myren, G D AU - Mueller, R J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41275132?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Another+slow+earthquake+on+the+San+Andreas+fault+triggered+by+a+M4.7+earthquake+on+April+19%2C+1996&rft.au=Johnston%2C+MJS%3BGwyther%2C+R%3BLinde%2C+A+T%3BGladwin%2C+M%3BMyren%2C+G+D%3BMueller%2C+R+J&rft.aulast=Johnston&rft.aufirst=MJS&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. S41A-7 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Rates of decrease in concentrations of cesium-137, total DDT, and PCBs in river basins indicated by reservoir sediment cores, 1960s to 1990s AN - 41274186; 3294254 AU - VanMetre, P C AU - Callender, E Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41274186?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Rates+of+decrease+in+concentrations+of+cesium-137%2C+total+DDT%2C+and+PCBs+in+river+basins+indicated+by+reservoir+sediment+cores%2C+1960s+to+1990s&rft.au=VanMetre%2C+P+C%3BCallender%2C+E&rft.aulast=VanMetre&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. H21B-6 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Floods and eddy sandbar responses: Comparison of annual natural floods to daily hydropower floods on two reaches of the Colorado River AN - 41273220; 3294635 AU - Cluer, B L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41273220?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Floods+and+eddy+sandbar+responses%3A+Comparison+of+annual+natural+floods+to+daily+hydropower+floods+on+two+reaches+of+the+Colorado+River&rft.au=Cluer%2C+B+L&rft.aulast=Cluer&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. H42A-22 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Sensitivity of snowmelt processes to climate conditions and forest cover during the 1996 Pacific Northwest flood AN - 41271369; 3294196 AU - Marks, D AU - Kimball, J AU - Tingey, D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41271369?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Sensitivity+of+snowmelt+processes+to+climate+conditions+and+forest+cover+during+the+1996+Pacific+Northwest+flood&rft.au=Marks%2C+D%3BKimball%2C+J%3BTingey%2C+D&rft.aulast=Marks&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. H12B-4 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effects of surfactants and groundwater chemistry upon the mobilization and transport of bacteria through aquifer sediments AN - 41271084; 3294169 AU - Metge, D W AU - Harvey, R W AU - Barber, LB II AU - Aiken, G R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41271084?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effects+of+surfactants+and+groundwater+chemistry+upon+the+mobilization+and+transport+of+bacteria+through+aquifer+sediments&rft.au=Metge%2C+D+W%3BHarvey%2C+R+W%3BBarber%2C+LB+II%3BAiken%2C+G+R&rft.aulast=Metge&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Paper No. H11D-5 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - California borderland crust in relation to the Western Transverse Ranges AN - 41269905; 3298048 AU - Ten Brink, US AU - Zhang, J AU - Loss, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41269905?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=California+borderland+crust+in+relation+to+the+Western+Transverse+Ranges&rft.au=Ten+Brink%2C+US%3BZhang%2C+J%3BLoss%2C+J&rft.aulast=Ten+Brink&rft.aufirst=US&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. T41A-4 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Ground efflux of 'cold' CO sub(2) in the Long Valley Caldera and Mono-Inyo craters volcanic chain vicinity of Eastern California AN - 41269782; 3298650 AU - Gerlach, T M AU - Doukas, M P AU - McGee, KA AU - Litasi-Gerlach, A AU - Sutton, JA AU - Elias, T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41269782?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Ground+efflux+of+%27cold%27+CO+sub%282%29+in+the+Long+Valley+Caldera+and+Mono-Inyo+craters+volcanic+chain+vicinity+of+Eastern+California&rft.au=Gerlach%2C+T+M%3BDoukas%2C+M+P%3BMcGee%2C+KA%3BLitasi-Gerlach%2C+A%3BSutton%2C+JA%3BElias%2C+T&rft.aulast=Gerlach&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Paper No. V32C-9 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Long-term weathering of granitoid in the laboratory: Initial observations and interpretations AN - 41269082; 3294095 AU - Bullen, T D AU - White, A F AU - Schulz AU - Vivit, D V Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41269082?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Long-term+weathering+of+granitoid+in+the+laboratory%3A+Initial+observations+and+interpretations&rft.au=Bullen%2C+T+D%3BWhite%2C+A+F%3BSchulz%3BVivit%2C+D+V&rft.aulast=Bullen&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Paper No. H72G-6 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Have changes in herbicide use affected herbicide concentrations in Midwestern streams? AN - 41268060; 3294250 AU - Battaglin, WA AU - Goolsby, DA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41268060?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Have+changes+in+herbicide+use+affected+herbicide+concentrations+in+Midwestern+streams%3F&rft.au=Battaglin%2C+WA%3BGoolsby%2C+DA&rft.aulast=Battaglin&rft.aufirst=WA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. H21B-2 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Metal speciation and the effects of transbasin water importation in the upper Arkansas River, Colorado AN - 41267091; 3294124 AU - Clark, M L AU - Lewis, ME Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41267091?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Metal+speciation+and+the+effects+of+transbasin+water+importation+in+the+upper+Arkansas+River%2C+Colorado&rft.au=Clark%2C+M+L%3BLewis%2C+ME&rft.aulast=Clark&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. H11A-23 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - MCS data collected aboard the F.S. Sonne reveal the detailed structure of the accretionary wedge off Cascadia AN - 41266183; 3297518 AU - Fisher, MA AU - Flueh, E R AU - Scholl, D W AU - Childs, J R AU - Parsons, T AU - Klaeschen, D AU - Ten Brink, U AU - Bialas, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41266183?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=MCS+data+collected+aboard+the+F.S.+Sonne+reveal+the+detailed+structure+of+the+accretionary+wedge+off+Cascadia&rft.au=Fisher%2C+MA%3BFlueh%2C+E+R%3BScholl%2C+D+W%3BChilds%2C+J+R%3BParsons%2C+T%3BKlaeschen%2C+D%3BTen+Brink%2C+U%3BBialas%2C+J&rft.aulast=Fisher&rft.aufirst=MA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. T72B-6 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Quaternary chronostratigraphic constraints on deformation and blind-thrust faulting, northern Los Angeles Basin, California AN - 41265704; 3297439 AU - Ponti, D J AU - Quinn, J P AU - Hillhouse, J W AU - Powell, CL II Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41265704?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Quaternary+chronostratigraphic+constraints+on+deformation+and+blind-thrust+faulting%2C+northern+Los+Angeles+Basin%2C+California&rft.au=Ponti%2C+D+J%3BQuinn%2C+J+P%3BHillhouse%2C+J+W%3BPowell%2C+CL+II&rft.aulast=Ponti&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. T71A-19 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Evaluating submarine slope stability regionally, Eel River margin, California AN - 41265453; 3294937 AU - Lee, HJ AU - Dartnell, P AU - Israel, K AU - Kayen, R E AU - Locat, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41265453?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Evaluating+submarine+slope+stability+regionally%2C+Eel+River+margin%2C+California&rft.au=Lee%2C+HJ%3BDartnell%2C+P%3BIsrael%2C+K%3BKayen%2C+R+E%3BLocat%2C+J&rft.aulast=Lee&rft.aufirst=HJ&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Paper No. OG72B-7 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Temporal stream and aquifer water-quality variations in a small karst watershed of the Arkansas Ozarks AN - 41265361; 3294015 AU - Freiwald, DA AU - Adamski, J C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41265361?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Temporal+stream+and+aquifer+water-quality+variations+in+a+small+karst+watershed+of+the+Arkansas+Ozarks&rft.au=Freiwald%2C+DA%3BAdamski%2C+J+C&rft.aulast=Freiwald&rft.aufirst=DA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. H72B-10 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Topographic evolution of sand bars in lateral separation eddies in Grand Canyon during an experimental flood AN - 41264175; 3294520 AU - Andrews, ED AU - Johnston, CE AU - Schmidt, J C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41264175?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Topographic+evolution+of+sand+bars+in+lateral+separation+eddies+in+Grand+Canyon+during+an+experimental+flood&rft.au=Andrews%2C+ED%3BJohnston%2C+CE%3BSchmidt%2C+J+C&rft.aulast=Andrews&rft.aufirst=ED&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Paper No. H32D-5 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Multiple empirical green's function analysis AN - 41259488; 3296408 AU - Hough, SE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41259488?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Multiple+empirical+green%27s+function+analysis&rft.au=Hough%2C+SE&rft.aulast=Hough&rft.aufirst=SE&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. S41B-16 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Clementine multispectral studies of pyroclastic deposits on the lunar farside AN - 41257632; 3295922 AU - Robinson, M AU - Ray Hawke, B AU - McEwen, A AU - Craddock, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41257632?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Clementine+multispectral+studies+of+pyroclastic+deposits+on+the+lunar+farside&rft.au=Robinson%2C+M%3BRay+Hawke%2C+B%3BMcEwen%2C+A%3BCraddock%2C+R&rft.aulast=Robinson&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Paper No. P32A-7 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Arias intensity method for assessment of earthquake-induced soil liquefaction potential AN - 41256280; 3296235 AU - Kayen, R E AU - Mitchell, J K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41256280?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Arias+intensity+method+for+assessment+of+earthquake-induced+soil+liquefaction+potential&rft.au=Kayen%2C+R+E%3BMitchell%2C+J+K&rft.aulast=Kayen&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. S22A-10 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - AVO central Aleutian expansion: Seismic monitoring and instrumentation AN - 41255858; 3295935 AU - Hammond, W R AU - Paskievitch, J F AU - Power, JA AU - Lockhart, AB AU - Estes, SA AU - Tytgat, G AU - Benevento, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41255858?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=AVO+central+Aleutian+expansion%3A+Seismic+monitoring+and+instrumentation&rft.au=Hammond%2C+W+R%3BPaskievitch%2C+J+F%3BPower%2C+JA%3BLockhart%2C+AB%3BEstes%2C+SA%3BTytgat%2C+G%3BBenevento%2C+J&rft.aulast=Hammond&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. S71A-7 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Tectono-geophysical domains of interior Alaska as interpreted from new gravity and aeromagnetic compilations AN - 41255444; 3297613 AU - Saltus, RW AU - Meyer, JF Jr AU - Barnes, D F AU - Morin, R L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41255444?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Tectono-geophysical+domains+of+interior+Alaska+as+interpreted+from+new+gravity+and+aeromagnetic+compilations&rft.au=Saltus%2C+RW%3BMeyer%2C+JF+Jr%3BBarnes%2C+D+F%3BMorin%2C+R+L&rft.aulast=Saltus&rft.aufirst=RW&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. T11D-22 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - 1996 Gobi-Altay, Mongolia, paleoseismology expedition: Initial results AN - 41253211; 3296009 AU - Schwartz, D AU - Hanks, T AU - Prentice, C AU - Kendrick, K AU - DePetris, A AU - Bayasgalan, A AU - Rockwell, T AU - Thorup, K AU - Ritz, J AU - Lund, W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41253211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=1996+Gobi-Altay%2C+Mongolia%2C+paleoseismology+expedition%3A+Initial+results&rft.au=Schwartz%2C+D%3BHanks%2C+T%3BPrentice%2C+C%3BKendrick%2C+K%3BDePetris%2C+A%3BBayasgalan%2C+A%3BRockwell%2C+T%3BThorup%2C+K%3BRitz%2C+J%3BLund%2C+W&rft.aulast=Schwartz&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Paper No. S72C-8 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - TREMOR/SOS project: Saving lives with cheap sensors AN - 41252298; 3292866 AU - Evans, J R AU - Spudich, P AU - Rogers, JA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41252298?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=TREMOR%2FSOS+project%3A+Saving+lives+with+cheap+sensors&rft.au=Evans%2C+J+R%3BSpudich%2C+P%3BRogers%2C+JA&rft.aulast=Evans&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. U31A-2 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - NEIC role in CBTB monitoring AN - 41251704; 3292664 AU - Buland, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41251704?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=NEIC+role+in+CBTB+monitoring&rft.au=Buland%2C+R&rft.aulast=Buland&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Paper No. U72C-2 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Geology and hazards of Iliamna Volcano, Alaska AN - 41250134; 3298555 AU - Miller, T P AU - Beget, JE AU - Stephens, C D AU - Moore, R B Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41250134?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Geology+and+hazards+of+Iliamna+Volcano%2C+Alaska&rft.au=Miller%2C+T+P%3BBeget%2C+JE%3BStephens%2C+C+D%3BMoore%2C+R+B&rft.aulast=Miller&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. V31B-18 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Assessing risk from methyl-mercury in tidal marsh sediments to reproduction of California Clapper Rails (Rallus longirostris obsoletus) using target diet and target egg concentration approaches AN - 41247155; 3285620 AU - Schwarzbach, SE AU - Henderson, J AU - Albertson, J AU - Hofis, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41247155?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Assessing+risk+from+methyl-mercury+in+tidal+marsh+sediments+to+reproduction+of+California+Clapper+Rails+%28Rallus+longirostris+obsoletus%29+using+target+diet+and+target+egg+concentration+approaches&rft.au=Schwarzbach%2C+SE%3BHenderson%2C+J%3BAlbertson%2C+J%3BHofis%2C+J&rft.aulast=Schwarzbach&rft.aufirst=SE&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Poster Paper No. P0939 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Distribution, movements and survival of female northern pintails during winter in California AN - 41246413; 3300908 AU - Fleskes, J P AU - Miller, M R AU - Casazza, M L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41246413?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Distribution%2C+movements+and+survival+of+female+northern+pintails+during+winter+in+California&rft.au=Fleskes%2C+J+P%3BMiller%2C+M+R%3BCasazza%2C+M+L&rft.aulast=Fleskes&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: First North American Duck Symposium, c/o LA Cooperative Fish and Wildlife Research Unit, Room 310, New Forestry Building, Louisiana State University, Baton Rouge, LA 70803, Abstracts available. Price $15. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Persistent water-level changes caused by seismic waves: Evaluation of non-poroelastic mechanisms AN - 41246225; 3294295 AU - Roeloffs, E A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41246225?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Persistent+water-level+changes+caused+by+seismic+waves%3A+Evaluation+of+non-poroelastic+mechanisms&rft.au=Roeloffs%2C+E+A&rft.aulast=Roeloffs&rft.aufirst=E&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Paper No. H21E-9 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Geochemistry and hydrogeology of a carbonate aquifer of the Ozark Plateaus Province in Arkansas, Kansas, Missouri, and Oklahoma AN - 41243381; 3294119 AU - Adamski, J C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41243381?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Issue+Paper+%28University+of+Arizona.+Water+Resources+Research+Center%29&rft.atitle=Restoration+of+native+riparian+plant+communities+along+the+lower+Colorado+River&rft.au=Swett%2C+John%3BShafroth%2C+Patrick+B%3BTellman%2C+Barbara%3BBriggs%2C+Mark+K&rft.aulast=Swett&rft.aufirst=John&rft.date=1999-10-01&rft.volume=21&rft.issue=&rft.spage=35&rft.isbn=&rft.btitle=&rft.title=Issue+Paper+%28University+of+Arizona.+Water+Resources+Research+Center%29&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Geophysical Union, 2000 Florida Avenue, NW, Washington, DC 20009, Abstracts available. Price $25. Poster Paper No. H11A-18 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Tree swallow as a sentinel for PCB exposure in the Upper Hudson River, New York AN - 41240490; 3284695 AU - Secord, A AU - McCarty, J AU - Tillitt, D AU - Meadows, J C AU - Echols, K R AU - Gale, R W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41240490?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Tree+swallow+as+a+sentinel+for+PCB+exposure+in+the+Upper+Hudson+River%2C+New+York&rft.au=Secord%2C+A%3BMcCarty%2C+J%3BTillitt%2C+D%3BMeadows%2C+J+C%3BEchols%2C+K+R%3BGale%2C+R+W&rft.aulast=Secord&rft.aufirst=A&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Paper No. 620 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Habitat use of northern pintails wintering in California AN - 41237886; 3300910 AU - Casazza, M L AU - Miller, M R AU - Fleskes, J P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41237886?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Habitat+use+of+northern+pintails+wintering+in+California&rft.au=Casazza%2C+M+L%3BMiller%2C+M+R%3BFleskes%2C+J+P&rft.aulast=Casazza&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: First North American Duck Symposium, c/o LA Cooperative Fish and Wildlife Research Unit, Room 310, New Forestry Building, Louisiana State University, Baton Rouge, LA 70803, Abstracts available. Price $15. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Aquatic behavioral toxicology: Advances and update AN - 41234711; 3284589 AU - Little, EE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 7500:Pharmacology KW - U 2500:Chemistry and Chemical Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41234711?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Aquatic+behavioral+toxicology%3A+Advances+and+update&rft.au=Little%2C+EE&rft.aulast=Little&rft.aufirst=EE&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: SETAC Office, 1010 North 12th Avenue, Pensacola, FL 32501-3370, Abstracts available. Price $30. Paper No. 514 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Juvenile chinook survival in the Sacramento-San Joaquin Delta AN - 41205632; 3266223 AU - Pierce, M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science KW - U 5700:Marine Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41205632?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Juvenile+chinook+survival+in+the+Sacramento-San+Joaquin+Delta&rft.au=Pierce%2C+M&rft.aulast=Pierce&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Fisheries Society, Oregon Chapter, PO Box 722, Corvallis, OR 97339, Contact individual authors directly. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Customer segmentation analysis of geospatial data users AN - 41176104; 3227513 AU - McDermott, M P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41176104?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Customer+segmentation+analysis+of+geospatial+data+users&rft.au=McDermott%2C+M+P&rft.aulast=McDermott&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Congress on Surveying and Mapping, Publications Dept., 5410 Grosvenor Lane, Suite 100, Bethesda, MD 20814, Full papers available. Price $50 for the 3-volume set. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - NSDI competitive cooperative agreements program: A status report AN - 41173992; 3227514 AU - McKenzie, B Y Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41173992?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=NSDI+competitive+cooperative+agreements+program%3A+A+status+report&rft.au=McKenzie%2C+B+Y&rft.aulast=McKenzie&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Congress on Surveying and Mapping, Publications Dept., 5410 Grosvenor Lane, Suite 100, Bethesda, MD 20814, Full papers available. Price $50 for the 3-volume set. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Digital compilation for customer-driven map revision AN - 41172556; 3227589 AU - Clampitt, L S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41172556?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Digital+compilation+for+customer-driven+map+revision&rft.au=Clampitt%2C+L+S&rft.aulast=Clampitt&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Congress on Surveying and Mapping, Publications Dept., 5410 Grosvenor Lane, Suite 100, Bethesda, MD 20814, Full papers available. Price $50 for the 3-volume set. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Development of the temporal transportation data base for the analysis of urban development in the Baltimore-Washington region AN - 41171691; 3227509 AU - Clark, S C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41171691?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Development+of+the+temporal+transportation+data+base+for+the+analysis+of+urban+development+in+the+Baltimore-Washington+region&rft.au=Clark%2C+S+C&rft.aulast=Clark&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Congress on Surveying and Mapping, Publications Dept., 5410 Grosvenor Lane, Suite 100, Bethesda, MD 20814, Full papers available. Price $50 for the 3-volume set. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Monitoring natural resource management practices in Senegal using aerial videography AN - 41171332; 3227503 AU - Tappan, G G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41171332?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Monitoring+natural+resource+management+practices+in+Senegal+using+aerial+videography&rft.au=Tappan%2C+G+G&rft.aulast=Tappan&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Congress on Surveying and Mapping, Publications Dept., 5410 Grosvenor Lane, Suite 100, Bethesda, MD 20814, Full papers available. Price $50 for the 3-volume set. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Developing a temporal data base of urban growth using a temporal GIS data base AN - 41168809; 3227510 AU - Crawford, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41168809?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Developing+a+temporal+data+base+of+urban+growth+using+a+temporal+GIS+data+base&rft.au=Crawford%2C+J&rft.aulast=Crawford&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Congress on Surveying and Mapping, Publications Dept., 5410 Grosvenor Lane, Suite 100, Bethesda, MD 20814, Full papers available. Price $50 for the 3-volume set. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Satellite image integration with spatial base data AN - 41166493; 3227648 AU - Sanchez, R D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41166493?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Satellite+image+integration+with+spatial+base+data&rft.au=Sanchez%2C+R+D&rft.aulast=Sanchez&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Congress on Surveying and Mapping, Publications Dept., 5410 Grosvenor Lane, Suite 100, Bethesda, MD 20814, Full papers available. Price $50 for the 3-volume set. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Merging digital raster graphics and digital orthophotoquadrangles for use in digital map revision AN - 41150097; 3227692 AU - Starbuck, M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41150097?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Merging+digital+raster+graphics+and+digital+orthophotoquadrangles+for+use+in+digital+map+revision&rft.au=Starbuck%2C+M&rft.aulast=Starbuck&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Congress on Surveying and Mapping, Publications Dept., 5410 Grosvenor Lane, Suite 100, Bethesda, MD 20814, Full papers available. Price $50 for the 3-volume set. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Some ways to reduce the geologic risk of finding world-class deposits: Kuroko deposits, an example AN - 41134897; 3213890 AU - Singer, DA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41134897?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Some+ways+to+reduce+the+geologic+risk+of+finding+world-class+deposits%3A+Kuroko+deposits%2C+an+example&rft.au=Singer%2C+DA&rft.aulast=Singer&rft.aufirst=DA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of Australia, Business Manager, 1203 Wynard House, 301 George Street, Sydney NSW 2000 Australia, Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - More on collecting and enforcement issues AN - 41126273; 3223237 AU - Mendoza, J G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41126273?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=More+on+collecting+and+enforcement+issues&rft.au=Mendoza%2C+J+G&rft.aulast=Mendoza&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Entomological Society of America, 9301 Annapolis Road, Lanham, MD 20706, Contact individual authors concerning paper availability. Paper No. 0479 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - USFWS threatened and endangered insect species listings: Past, present, and future AN - 41124064; 3223236 AU - Jacobs, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41124064?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=USFWS+threatened+and+endangered+insect+species+listings%3A+Past%2C+present%2C+and+future&rft.au=Jacobs%2C+J&rft.aulast=Jacobs&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Entomological Society of America, 9301 Annapolis Road, Lanham, MD 20706, Contact individual authors concerning paper availability. Paper No. 0478 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Imperiled insect fauna of Hawaii AN - 41122211; 3223228 AU - Asquith, A Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:Animal and Plant Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41122211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Imperiled+insect+fauna+of+Hawaii&rft.au=Asquith%2C+A&rft.aulast=Asquith&rft.aufirst=A&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: The Entomological Society of America, 9301 Annapolis Road, Lanham, MD 20706, Contact individual authors concerning paper availability. Paper No. 0470 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - US Bureau of Reclamation: Recent transitions to approach new realities AN - 41058031; 3177432 AU - Beard, D P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41058031?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=US+Bureau+of+Reclamation%3A+Recent+transitions+to+approach+new+realities&rft.au=Beard%2C+D+P&rft.aulast=Beard&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Stockholm Water Symposium, S-10636, Stockholm, Sweden. Fax: +46 87362022, Abstracts available. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Miniature radio-transmitter development for Kirtland's Warbler tracking studies AN - 40872763; 1156339 AU - Knittle, CE AU - Kolz, AL AU - Bourassa, J B AU - Johnson, R E Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 3500:CLINICAL MEDICINE KW - U 2000:BIOLOGY GENERAL KW - U 4500:EXPERIMENTAL MEDICINE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40872763?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Miniature+radio-transmitter+development+for+Kirtland%27s+Warbler+tracking+studies&rft.au=Petersen%2C+M+R%3BLarned%2C+W+W%3BDouglas%2C+D+C&rft.aulast=Petersen&rft.aufirst=M&rft.date=1999-10-01&rft.volume=116&rft.issue=4&rft.spage=1009&rft.isbn=&rft.btitle=&rft.title=Auk&rft.issn=00048038&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Alliance for Engineering in Medicine and Biology, Suite 700, 1101 Connecticut Avenue, N.W., Washington, DC 20036 (USA), Paper No. I.1 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Recent developments in hydrologic instrumentation AN - 40845978; 1091661 AU - Latkovich, V J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U CLASSIFICATION:DATA NOT AVAILABLE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40845978?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Recent+developments+in+hydrologic+instrumentation&rft.au=Latkovich%2C+V+J&rft.aulast=Latkovich&rft.aufirst=V&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASCE, Publications Fulfillment Department, 345 East 47th Street, New York, NY 10017-2398 (USA), ISBN 0-87262-474-9; Price -- $114.00 (prepayment required) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Hydrologic determination of water availability in the Upper Colorado River Basin AN - 40844875; 1089363 AU - Gernerd, KA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40844875?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Hydrologic+determination+of+water+availability+in+the+Upper+Colorado+River+Basin&rft.au=Gernerd%2C+KA&rft.aulast=Gernerd&rft.aufirst=KA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Water Resources Association, 5410 Grosvenor Lane, Bethesda, MD 20814 (USA), Price -- $37.95 (includes shipping & handling) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Illitization of smectite by alternate wetting and drying AN - 40844826; 1083836 AU - Eberl, D D AU - Srodon, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40844826?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Illitization+of+smectite+by+alternate+wetting+and+drying&rft.au=Eberl%2C+D+D%3BSrodon%2C+J&rft.aulast=Eberl&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Clay Minerals Society, P.O. Box 2295, Bloomington, IN 47402 (USA), Price: $100.00 (tentative) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Diagenesis of rhyolitic ash in coal-forming environments AN - 40844737; 1083806 AU - Bohor, B F Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40844737?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Diagenesis+of+rhyolitic+ash+in+coal-forming+environments&rft.au=Bohor%2C+B+F&rft.aulast=Bohor&rft.aufirst=B&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Clay Minerals Society, P.O. Box 2295, Bloomington, IN 47402 (USA), Price: $100.00 (tentative) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Smectite geochemistry and the estimation of clay mineral stability AN - 40844061; 1084639 AU - May, H M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40844061?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Smectite+geochemistry+and+the+estimation+of+clay+mineral+stability&rft.au=May%2C+H+M&rft.aulast=May&rft.aufirst=H&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Clay Minerals Society, P.O. Box 2295, Bloomington, IN 47402 (USA), Price: $100.00 (tentative) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Ion exchange experiments in the system (NH sub(4),K)Cl-H sub(2)O silicate at temperatures between 200 degree C and 400 degree C AN - 40843819; 1083785 AU - Altaner, S P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40843819?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Ion+exchange+experiments+in+the+system+%28NH+sub%284%29%2CK%29Cl-H+sub%282%29O+silicate+at+temperatures+between+200+degree+C+and+400+degree+C&rft.au=Altaner%2C+S+P&rft.aulast=Altaner&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Clay Minerals Society, P.O. Box 2295, Bloomington, IN 47402 (USA), Price: $100.00 (tentative) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Potential controlled- and renewable-release fertilization system based on ion exchange AN - 40843242; 1084606 AU - Lai, T-M AU - Eberl, D D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40843242?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Potential+controlled-+and+renewable-release+fertilization+system+based+on+ion+exchange&rft.au=Lai%2C+T-M%3BEberl%2C+D+D&rft.aulast=Lai&rft.aufirst=T-M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Clay Minerals Society, P.O. Box 2295, Bloomington, IN 47402 (USA), Price: $100.00 (tentative) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Solving the two-dimensional diffusion model AN - 40839930; 1090497 AU - Hromadka, TV II AU - Lai, C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U CLASSIFICATION:DATA NOT AVAILABLE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40839930?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Solving+the+two-dimensional+diffusion+model&rft.au=Hromadka%2C+TV+II%3BLai%2C+C&rft.aulast=Hromadka&rft.aufirst=TV&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASCE, Publications Fulfillment Department, 345 East 47th Street, New York, NY 10017-2398 (USA), ISBN 0-87262-474-9; Price -- $114.00 (prepayment required) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Simulating flow in the tidal Potomac River AN - 40838021; 1090420 AU - Schaffranek, R W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U CLASSIFICATION:DATA NOT AVAILABLE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40838021?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Simulating+flow+in+the+tidal+Potomac+River&rft.au=Schaffranek%2C+R+W&rft.aulast=Schaffranek&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: ASCE, Publications Fulfillment Department, 345 East 47th Street, New York, NY 10017-2398 (USA), ISBN 0-87262-474-9; Price -- $114.00 (prepayment required) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - EEZ-SCAN: A U.S. Geological Survey sea-floor imaging program using the Gloria Side-Scan Sonar System AN - 40738821; 0893806 AU - Hill, G W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40738821?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=EEZ-SCAN%3A+A+U.S.+Geological+Survey+sea-floor+imaging+program+using+the+Gloria+Side-Scan+Sonar+System&rft.au=Hill%2C+G+W&rft.aulast=Hill&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Society for Photogrammetry, 210 Little Falls Street, Falls Church, VA 22046, USA, Proceedings published as volumes. ASP volumes -- $12.50; AutoCarto 7 -- $30.00. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - A sampling approach to irrigated acreage determination in the Green River Basin of Wyoming AN - 40738133; 0894269 AU - Verdin, J P AU - Hay, C M AU - O'Grady, M T Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40738133?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=A+sampling+approach+to+irrigated+acreage+determination+in+the+Green+River+Basin+of+Wyoming&rft.au=Verdin%2C+J+P%3BHay%2C+C+M%3BO%27Grady%2C+M+T&rft.aulast=Verdin&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Society for Photogrammetry, 210 Little Falls Street, Falls Church, VA 22046, USA, Proceedings published as volumes. ASP volumes -- $12.50; AutoCarto 7 -- $30.00. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Identifying water sources on the North Slope, Alaska for geologic exploration AN - 40735718; 0889200 AU - Walker, K-M AU - York, JE AU - Murphy, D L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40735718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Identifying+water+sources+on+the+North+Slope%2C+Alaska+for+geologic+exploration&rft.au=Walker%2C+K-M%3BYork%2C+JE%3BMurphy%2C+D+L&rft.aulast=Walker&rft.aufirst=K-M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Proceedings available. Contact the Environmental Research Institute of Michigan, P.O. Box 8618, Ann Arbor, MI 48107, USA, Poster Paper No. D-14 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Paleozoic Karst controlled mineralization and superimposed tertiary ores of the Leadville Formation, central Colorado AN - 40727484; 0842332 AU - Landis, G P AU - Tschauder, R J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40727484?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Paleozoic+Karst+controlled+mineralization+and+superimposed+tertiary+ores+of+the+Leadville+Formation%2C+central+Colorado&rft.au=Landis%2C+G+P%3BTschauder%2C+R+J&rft.aulast=Landis&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: 1985, Publications Sales, Society of Mining Engineers, Caller No. D, Littleton, CO 80127, USA N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - U.S.G.S. Marine Geology Program in the exclusive economic zone AN - 40722440; 0854276 AU - Hill, G W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40722440?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=U.S.G.S.+Marine+Geology+Program+in+the+exclusive+economic+zone&rft.au=Hill%2C+G+W&rft.aulast=Hill&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Proceedings available: Offshore Technology Conference, P.O. Box 833868, Richardson, TX 75083-3868 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Geophysical techniques for shallow soil investigations in colluvial material, northern Virginia AN - 40706953; 0816992 AU - Olson, C G AU - Doolittle, JA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:ANIMAL AND PLANT SCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40706953?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Geophysical+techniques+for+shallow+soil+investigations+in+colluvial+material%2C+northern+Virginia&rft.au=Olson%2C+C+G%3BDoolittle%2C+JA&rft.aulast=Olson&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts available in: "1984 Agronomy Abstracts", 1984, ASA Headquarters, 677 South Segoe Road, Madison, WI 53711, USA, Price: $6.00 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Influence of temperature upon water retention. Diffusivity, and unsaturated conductivity in two nonswelling materials from 20 degree to 80 degree C AN - 40701156; 0813286 AU - Constantz, J AU - Herkelrath, W N Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:ANIMAL AND PLANT SCIENCE KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40701156?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Influence+of+temperature+upon+water+retention.+Diffusivity%2C+and+unsaturated+conductivity+in+two+nonswelling+materials+from+20+degree+to+80+degree+C&rft.au=Constantz%2C+J%3BHerkelrath%2C+W+N&rft.aulast=Constantz&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts available in: "1984 Agronomy Abstracts", 1984, ASA Headquarters, 677 South Segoe Road, Madison, WI 53711, USA, Price: $6.00 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Density of basin-fill deposits calculated from borehole gravity data in four basins in central and southern Arizona AN - 40631431; 0622836 AU - Tucci, P AU - Schmoker, J W AU - Robbins, S L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40631431?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Density+of+basin-fill+deposits+calculated+from+borehole+gravity+data+in+four+basins+in+central+and+southern+Arizona&rft.au=Tucci%2C+P%3BSchmoker%2C+J+W%3BRobbins%2C+S+L&rft.aulast=Tucci&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Exploration Geophysicists, Box 3098, Tulsa, OK 74101, USA, Expanded abstracts (1000-2000 words) available in bound volume. Price: $25 member; $30 non-member; $27 member outside U.S.; $32 non-member outside U.S. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Lacustrine silicaclastic rocks and hydrocarbons AN - 40625154; 0615015 AU - Fouch, T D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40625154?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Lacustrine+silicaclastic+rocks+and+hydrocarbons&rft.au=Fouch%2C+T+D&rft.aulast=Fouch&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Exploration Geophysicists, Box 3098, Tulsa, OK 74101, USA, Expanded abstracts (1000-2000 words) available in bound volume. Price: $25 member; $30 non-member; $27 member outside U.S.; $32 non-member outside U.S. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Mesozoic-cenozoic deposition along Atlantic Continental Shelf from Scotian Shelf, Canada to Baltimore Canyon Trough, United States AN - 40621514; 0615002 AU - Libbey, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40621514?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Mesozoic-cenozoic+deposition+along+Atlantic+Continental+Shelf+from+Scotian+Shelf%2C+Canada+to+Baltimore+Canyon+Trough%2C+United+States&rft.au=Libbey%2C+J&rft.aulast=Libbey&rft.aufirst=J&rft.date=2000-12-31&rft.volume=128&rft.issue=5&rft.spage=953&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Exploration Geophysicists, Box 3098, Tulsa, OK 74101, USA, Expanded abstracts (1000-2000 words) available in bound volume. Price: $25 member; $30 non-member; $27 member outside U.S.; $32 non-member outside U.S. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Geophysical response of titanium-bearing deposits of placer heavy minerals in northeastern Florida AN - 40617161; 0623565 AU - Wynn, J C AU - Grosz, A E Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40617161?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Geophysical+response+of+titanium-bearing+deposits+of+placer+heavy+minerals+in+northeastern+Florida&rft.au=Wynn%2C+J+C%3BGrosz%2C+A+E&rft.aulast=Wynn&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Society of Exploration Geophysicists, Box 3098, Tulsa, OK 74101, USA, Expanded abstracts (1000-2000 words) available in bound volume. Price: $25 member; $30 non-member; $27 member outside U.S.; $32 non-member outside U.S. N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Evaluation of stream water quality models AN - 40597499; 0537452 AU - McCutcheon, S C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5000:GENERAL ENGINEERING AND TECHNOLOGY KW - U 3000:CIVIL AND MECHANICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40597499?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Evaluation+of+stream+water+quality+models&rft.au=McCutcheon%2C+S+C&rft.aulast=McCutcheon&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Proceedings available: ASCE, Publications Fulfillment Dep., 345 E. 47th St., New York, NY 10017-2398, USA, Price: $75.00; 992 pages N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Adsorption of Pb onto two gram-negative bacteria AN - 40596304; 0563600 AU - Harvey, R W AU - Leckie, JO Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 1500:BIOCHEMISTRY KW - U 2500:CHEMISTRY AND CHEMICAL ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40596304?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Adsorption+of+Pb+onto+two+gram-negative+bacteria&rft.au=Harvey%2C+R+W%3BLeckie%2C+JO&rft.aulast=Harvey&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Proceedings in: "Planetary Ecology: Selected Papers from the 6th ISEB", Mar. 1984, Van Nostrand Reinhold, 135 West 50th St., New York, NY 10020, USA, Abstracts booklet available to conference participants Poster Paper 3.14 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Some geophysical applications of nuclear measurements and nuclear data requirements AN - 40582443; 0530919 AU - Duval, J S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 8500:POWER ENGINEERING UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40582443?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Some+geophysical+applications+of+nuclear+measurements+and+nuclear+data+requirements&rft.au=Duval%2C+J+S&rft.aulast=Duval&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: 900 word summaries in: ANS Transactions, Jun. 1983, ANS, 555 N. Kensington Ave., La Grande Park, IL 60625, USA, ISSN 0003-018X; Price: $80 (USA); $95 (outside USA) N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Adsorption and desorption of chromate (CrO sub(4)@)u2 super(-)) in an alluvial aquifer near Telluride, Colorado AN - 40580456; 0561551 AU - Stollenwerk, K G AU - Grove, D B Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1000:ANIMAL AND PLANT SCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40580456?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Adsorption+and+desorption+of+chromate+%28CrO+sub%284%29%40%29u2+super%28-%29%29+in+an+alluvial+aquifer+near+Telluride%2C+Colorado&rft.au=Stollenwerk%2C+K+G%3BGrove%2C+D+B&rft.aulast=Stollenwerk&rft.aufirst=K&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Bound volume of abstracts available: American Society of Agronomy, 677 S. Segoe Road, Madison, WI 53711, USA, Price: $6.00 U.S.; $7.00 outside U.S. Poster Paper N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Geostatistical study of three coal deposits in the Western United States AN - 40561267; 0513163 AU - Pierce, F W AU - Grundy, W D AU - Connor, C W AU - Marbeau, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE KW - U 6500:MATHEMATICS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40561267?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Geostatistical+study+of+three+coal+deposits+in+the+Western+United+States&rft.au=Pierce%2C+F+W%3BGrundy%2C+W+D%3BConnor%2C+C+W%3BMarbeau%2C+J&rft.aulast=Pierce&rft.aufirst=F&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Aug. 1983, Proceedings available: Society of Mining Engineers of AIME, Caller No. D, Littleton, CO 80127, USA, Price: $50 + $3.50 postage N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Biogeochemistry of aquatic humic substances in Thoreau's Bog, Concord, Massachusetts AN - 40522984; 0374633 AU - McKnight, D M AU - Thurman, E M AU - Wershaw, R L AU - Hemond, H L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40522984?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Biogeochemistry+of+aquatic+humic+substances+in+Thoreau%27s+Bog%2C+Concord%2C+Massachusetts&rft.au=McKnight%2C+D+M%3BThurman%2C+E+M%3BWershaw%2C+R+L%3BHemond%2C+H+L&rft.aulast=McKnight&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. LO32A-11 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Anaerobic oxalate degradation: Widespread natural occurrence in aquatic sediments AN - 40521409; 0374566 AU - Smith, R L AU - Oremland, R S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40521409?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Anaerobic+oxalate+degradation%3A+Widespread+natural+occurrence+in+aquatic+sediments&rft.au=Smith%2C+R+L%3BOremland%2C+R+S&rft.aulast=Smith&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. LO32A-01 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Hydrogen production and nitrogen fixation by epiphytic microbial communities in Big Soda Lake, Nevada AN - 40520218; 0374940 AU - Oremland, R S AU - Culbertson, C W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40520218?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Hydrogen+production+and+nitrogen+fixation+by+epiphytic+microbial+communities+in+Big+Soda+Lake%2C+Nevada&rft.au=Oremland%2C+R+S%3BCulbertson%2C+C+W&rft.aulast=Oremland&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. LO51A-04 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Iron geochemistry and distribution in a coastal dunes aquifer, Coos Bay, Oregon AN - 40517207; 0373274 AU - Luzier, JE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40517207?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Iron+geochemistry+and+distribution+in+a+coastal+dunes+aquifer%2C+Coos+Bay%2C+Oregon&rft.au=Luzier%2C+JE&rft.aulast=Luzier&rft.aufirst=JE&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. H41C-04, Poster N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Focal depths of aftershocks of the 1979 St. Elias, Alaska, earthquake AN - 40516354; 0378712 AU - Page, R A AU - Hassler, M H AU - Stephens, C D AU - Criley, EE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40516354?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Focal+depths+of+aftershocks+of+the+1979+St.+Elias%2C+Alaska%2C+earthquake&rft.au=Page%2C+R+A%3BHassler%2C+M+H%3BStephens%2C+C+D%3BCriley%2C+EE&rft.aulast=Page&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. S72-09 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Watergun versus airgun: A comparison AN - 40516122; 0377296 AU - Hutchinson AU - Detrick, RS Jr AU - Grow, JA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40516122?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Watergun+versus+airgun%3A+A+comparison&rft.au=Hutchinson%3BDetrick%2C+RS+Jr%3BGrow%2C+JA&rft.aulast=Hutchinson&rft.aufirst=&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. S52A-03 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Denitrification and dissimilatory nitrate reduction associated with algal mats in a small urbanized stream AN - 40514976; 0373892 AU - Duff, J H AU - Triska, F J AU - Avanzino, R J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40514976?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Denitrification+and+dissimilatory+nitrate+reduction+associated+with+algal+mats+in+a+small+urbanized+stream&rft.au=Duff%2C+J+H%3BTriska%2C+F+J%3BAvanzino%2C+R+J&rft.aulast=Duff&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. LO21A-02 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Recent research trends in the San Francisco Bay estuarine system AN - 40514189; 0374021 AU - Conomos, T J AU - Nichols, F H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40514189?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Recent+research+trends+in+the+San+Francisco+Bay+estuarine+system&rft.au=Conomos%2C+T+J%3BNichols%2C+F+H&rft.aulast=Conomos&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. LO21B-01 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Interaction of surface water with variably-saturated porous media AN - 40513934; 0373472 AU - Winter, T C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40513934?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Interaction+of+surface+water+with+variably-saturated+porous+media&rft.au=Winter%2C+T+C&rft.aulast=Winter&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. H42B-03 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Field method for determining three-dimensional anisotropic permeability of fractured rocks AN - 40513817; 0373384 AU - Hsieh, P A AU - Neuman, S P AU - Simpson, E S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40513817?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=An+inventory+of+vertebrate+ichnofossils+from+Zion+National+Park%2C+Utah&rft.au=Smith%2C+Joshua+A%3BSantucci%2C+Vincent+L%3BAnonymous&rft.aulast=Smith&rft.aufirst=Joshua&rft.date=1999-09-01&rft.volume=19&rft.issue=3%2C+SUPPL.&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=Journal+of+Vertebrate+Paleontology&rft.issn=02724634&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. H41C-22, Poster N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Gas hydrates of the Middle America Trench, DSDP leg 84 AN - 40513524; 0376893 AU - Kvenvolden, KA AU - McDonald, T J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40513524?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Gas+hydrates+of+the+Middle+America+Trench%2C+DSDP+leg+84&rft.au=Kvenvolden%2C+KA%3BMcDonald%2C+T+J&rft.aulast=Kvenvolden&rft.aufirst=KA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. 052B-04 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Well field hydrogeology and simulation modeling, Portland, Oregon AN - 40513399; 0373283 AU - McFarland, W D AU - Luzier, JE AU - Willis, R F Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40513399?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Well+field+hydrogeology+and+simulation+modeling%2C+Portland%2C+Oregon&rft.au=McFarland%2C+W+D%3BLuzier%2C+JE%3BWillis%2C+R+F&rft.aulast=McFarland&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. H41C-06, Poster N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Magnetic properties of the Bay of Islands ophiolite suite and the implications for the magnetization of oceanic crust AN - 40513169; 0372113 AU - Swift, BA AU - Johnson, H P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40513169?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Magnetic+properties+of+the+Bay+of+Islands+ophiolite+suite+and+the+implications+for+the+magnetization+of+oceanic+crust&rft.au=Swift%2C+BA%3BJohnson%2C+H+P&rft.aulast=Swift&rft.aufirst=BA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. GP72B-07 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Empirical technique for using sediment bedforms as current meters AN - 40512904; 0375625 AU - Rubin, D M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40512904?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Empirical+technique+for+using+sediment+bedforms+as+current+meters&rft.au=Rubin%2C+D+M&rft.aulast=Rubin&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. O21A-01 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Correlation of changes in gravity, elevation and strain in southern California AN - 40511103; 0382533 AU - Jachens, R C AU - Thatcher, W AU - Roberts, C W AU - Stein, R S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40511103?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Correlation+of+changes+in+gravity%2C+elevation+and+strain+in+southern+California&rft.au=Jachens%2C+R+C%3BThatcher%2C+W%3BRoberts%2C+C+W%3BStein%2C+R+S&rft.aulast=Jachens&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. T62D-08 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Hazard assessment during volcanic crises: some tough questions facing volcanologists AN - 40511039; 0384470 AU - Newhall, C G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40511039?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Hazard+assessment+during+volcanic+crises%3A+some+tough+questions+facing+volcanologists&rft.au=Newhall%2C+C+G&rft.aulast=Newhall&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. V52A-02 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Teleseismic studies of the Earth's crust and upper mantle in southern Nevada AN - 40510946; 0382272 AU - Monfort, ME AU - Evans, J R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40510946?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Teleseismic+studies+of+the+Earth%27s+crust+and+upper+mantle+in+southern+Nevada&rft.au=Monfort%2C+ME%3BEvans%2C+J+R&rft.aulast=Monfort&rft.aufirst=ME&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. T61A-07 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Gravity and magnetic studies in the region of the Nevada test site AN - 40510782; 0382268 AU - Kane, M F AU - Bath, G D AU - Snyder, D B AU - Rosenbaum, J G AU - Oliver, H W AU - Ponce, DA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40510782?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Gravity+and+magnetic+studies+in+the+region+of+the+Nevada+test+site&rft.au=Kane%2C+M+F%3BBath%2C+G+D%3BSnyder%2C+D+B%3BRosenbaum%2C+J+G%3BOliver%2C+H+W%3BPonce%2C+DA&rft.aulast=Kane&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. T61A-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Reducing volcanic risk AN - 40509414; 0384468 AU - Decker, R W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40509414?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Reducing+volcanic+risk&rft.au=Decker%2C+R+W&rft.aulast=Decker&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. V52A-01 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Commercial borehole geophysical logs at Yucca Mountain, Nevada AN - 40509266; 0382741 AU - Muller, D C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40509266?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Commercial+borehole+geophysical+logs+at+Yucca+Mountain%2C+Nevada&rft.au=Muller%2C+D+C&rft.aulast=Muller&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. T71C-08, Poster N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Continental rift-valley volcanism prior to first-stage opening of Red Sea AN - 40509205; 0383914 AU - Schmidt, D L AU - Hadley, D G AU - Blank, H R AU - Brown, G F Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40509205?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Continental+rift-valley+volcanism+prior+to+first-stage+opening+of+Red+Sea&rft.au=Shanley%2C+J+B%3BChalmers%2C+A&rft.aulast=Shanley&rft.aufirst=J&rft.date=1999-09-01&rft.volume=13&rft.issue=12-13&rft.spage=1843&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=08856087&rft_id=info:doi/10.1002%2F%28SICI%291099-1085%28199909%2913%3A12%2F133.3.CO%3B2-+7 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. T81A-03 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Rock property analysis for core samples from Yucca Mountain boreholes, Nevada test site, Nevada AN - 40508498; 0382739 AU - Anderson, LA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40508498?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Rock+property+analysis+for+core+samples+from+Yucca+Mountain+boreholes%2C+Nevada+test+site%2C+Nevada&rft.au=Anderson%2C+LA&rft.aulast=Anderson&rft.aufirst=LA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. T71C-07, Poster N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Temporal variations of gravity near Long Valley, California 1980-82 AN - 40508128; 0384491 AU - Jachens, R C AU - Roberts, C W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40508128?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Temporal+variations+of+gravity+near+Long+Valley%2C+California+1980-82&rft.au=Jachens%2C+R+C%3BRoberts%2C+C+W&rft.aulast=Jachens&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. V52A-07 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Magnetic study of Medicine Lake Volcano, California AN - 40507992; 0385443 AU - Finn, C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40507992?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Magnetic+study+of+Medicine+Lake+Volcano%2C+California&rft.au=Finn%2C+C&rft.aulast=Finn&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. V81C-06, Poster N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Nontronite from an immature hydrothermal system on the Juan de Fuca Ridge AN - 40506294; 0385217 AU - Clague, DA AU - Murnane, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40506294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Nontronite+from+an+immature+hydrothermal+system+on+the+Juan+de+Fuca+Ridge&rft.au=Clague%2C+DA%3BMurnane%2C+R&rft.aulast=Clague&rft.aufirst=DA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. V81A-04 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Criteria for recognition of large volcanic debris avalanches AN - 40506152; 0384943 AU - Glicken, H Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40506152?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Criteria+for+recognition+of+large+volcanic+debris+avalanches&rft.au=Glicken%2C+H&rft.aulast=Glicken&rft.aufirst=H&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. V71B-09 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Prehistoric debris avalanche from Mount St. Helens AN - 40506034; 0384949 AU - Newhall, C G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40506034?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Prehistoric+debris+avalanche+from+Mount+St.+Helens&rft.au=Newhall%2C+C+G&rft.aulast=Newhall&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Estuaries&rft.issn=01608347&rft_id=info:doi/10.2307%2F1353050 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. V71B-10 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Deformation of the crater floor at Mount St. Helens AN - 40505989; 0384895 AU - Chadwick, WW Jr AU - Swanson, DA AU - Iwatsubo, E Y AU - Heliker, C C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40505989?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Deformation+of+the+crater+floor+at+Mount+St.+Helens&rft.au=Chadwick%2C+WW+Jr%3BSwanson%2C+DA%3BIwatsubo%2C+E+Y%3BHeliker%2C+C+C&rft.aulast=Chadwick&rft.aufirst=WW&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. V71B-01 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Distribution of SO sub(2) and particles in volcanic plumes in Costa Rica and Mexico: February 1982 AN - 40505898; 0385536 AU - Casadevall, T AU - Rose, W AU - Fuller, W AU - Hunt, W AU - Moyers, J AU - Hart, M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40505898?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Distribution+of+SO+sub%282%29+and+particles+in+volcanic+plumes+in+Costa+Rica+and+Mexico%3A+February+1982&rft.au=Casadevall%2C+T%3BRose%2C+W%3BFuller%2C+W%3BHunt%2C+W%3BMoyers%2C+J%3BHart%2C+M&rft.aulast=Casadevall&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. V81C-28, Poster N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Sr-isotopic variations along the Juan de Fuca Ridge AN - 40505492; 0385620 AU - Eaby, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40505492?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Sr-isotopic+variations+along+the+Juan+de+Fuca+Ridge&rft.au=Eaby%2C+J&rft.aulast=Eaby&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. V82A-10 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Petrology of gabbroic xenoliths and their ferrobasalt from the southern Juan de Fuca Ridge AN - 40504668; 0385587 AU - Eaby, J AU - Eissen, J-P AU - Clague, DA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40504668?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Petrology+of+gabbroic+xenoliths+and+their+ferrobasalt+from+the+southern+Juan+de+Fuca+Ridge&rft.au=Eaby%2C+J%3BEissen%2C+J-P%3BClague%2C+DA&rft.aulast=Eaby&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. V82A-07 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Petrology of tholeiitic basalt dredged from Hualalai Volcano, Hawaii AN - 40504435; 0384813 AU - Clague, DA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40504435?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Petrology+of+tholeiitic+basalt+dredged+from+Hualalai+Volcano%2C+Hawaii&rft.au=Clague%2C+DA&rft.aulast=Clague&rft.aufirst=DA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. V62A-05 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Hydrologic vs. biologic retention of transported nitrate in a third-order mountain stream AN - 40504079; 0373202 AU - Triska, F J AU - Kennedy, V C AU - Bencala, KE Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40504079?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Hydrologic+vs.+biologic+retention+of+transported+nitrate+in+a+third-order+mountain+stream&rft.au=Triska%2C+F+J%3BKennedy%2C+V+C%3BBencala%2C+KE&rft.aulast=Triska&rft.aufirst=F&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. H41B-07 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Cenozoic Plate motions and the volcano-tectonic evolution of western Oregon and Washington AN - 40503931; 0371948 AU - Wells, R E AU - Engebretson, D C AU - Snavely, PD Jr AU - Coe, R S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:GEOSCIENCE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40503931?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Cenozoic+Plate+motions+and+the+volcano-tectonic+evolution+of+western+Oregon+and+Washington&rft.au=Wells%2C+R+E%3BEngebretson%2C+D+C%3BSnavely%2C+PD+Jr%3BCoe%2C+R+S&rft.aulast=Wells&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Abstracts in: "EOS, Transactions, American Geophysical Union", Nov. 9, 1982, American Geophysical Union, 2000 Florida Avenue, N.W., Washington, DC 20009, USA, ISSN: 0096-3941, Single Issue $10.00 Abstract No. GP71A-09 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Microbial Ecology of a Creosote-Contaminated Aquifer at St. Louis Park, Minnesota AN - 40466707; 0285562 AU - Ehrlich, G G AU - Godsy, E M AU - Goerlitz, D F Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4500:EXPERIMENTAL MEDICINE UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40466707?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Microbial+Ecology+of+a+Creosote-Contaminated+Aquifer+at+St.+Louis+Park%2C+Minnesota&rft.au=Ehrlich%2C+G+G%3BGodsy%2C+E+M%3BGoerlitz%2C+D+F&rft.aulast=Ehrlich&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Proceedings in: "Developments in Industrial Microbiology", May 1983, Society for Industrial Microbiology, 1401 Wilson Blvd., Arlington, VA 22209, L.C. No. 60-13953; ISSN 0070-4563; Price $34.95 + postage N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Shorebird population dynamics in a complex landscape: The great basin AN - 39265514; 3531621 AU - Li, X AU - Haig, S M AU - Oring, L W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39265514?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Shorebird+population+dynamics+in+a+complex+landscape%3A+The+great+basin&rft.au=Li%2C+X%3BHaig%2C+S+M%3BOring%2C+L+W&rft.aulast=Li&rft.aufirst=X&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: University of Montana, Wildlife Biology Program, University of Montana, Missoula, MT 59812, USA; phone: 406-243-4493; email: scb2000@selway.umt.edu; URL: http://www.umt.edu/scb2000/ N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Aerial surveys of black-tailed prairie dogs in the northern great plains AN - 39265387; 3531566 AU - Johnson, D H AU - Sidle, J G AU - Euliss, B R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39265387?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Aerial+surveys+of+black-tailed+prairie+dogs+in+the+northern+great+plains&rft.au=Johnson%2C+D+H%3BSidle%2C+J+G%3BEuliss%2C+B+R&rft.aulast=Johnson&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: University of Montana, Wildlife Biology Program, University of Montana, Missoula, MT 59812, USA; phone: 406-243-4493; email: scb2000@selway.umt.edu; URL: http://www.umt.edu/scb2000/ N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Geology and the all taxa biodiversity inventory: Great smoky mountains national park AN - 39265310; 3514903 AU - Schultz, A AU - Southworth, S AU - Chirico, P AU - Rock, J AU - Langdon, K AU - Parker, C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39265310?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Geology+and+the+all+taxa+biodiversity+inventory%3A+Great+smoky+mountains+national+park&rft.au=Schultz%2C+A%3BSouthworth%2C+S%3BChirico%2C+P%3BRock%2C+J%3BLangdon%2C+K%3BParker%2C+C&rft.aulast=Schultz&rft.aufirst=A&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Use of chemical and isotopic tracers to assess sources and chronology of nitrate contamination in spring waters, northern Florida AN - 39263092; 3513977 AU - Katz, B G AU - Bohlke, J K AU - Hornsby, D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39263092?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Use+of+chemical+and+isotopic+tracers+to+assess+sources+and+chronology+of+nitrate+contamination+in+spring+waters%2C+northern+Florida&rft.au=Katz%2C+B+G%3BBohlke%2C+J+K%3BHornsby%2C+D&rft.aulast=Katz&rft.aufirst=B&rft.date=2000-12-31&rft.volume=8&rft.issue=3&rft.spage=159&rft.isbn=&rft.btitle=&rft.title=Ecology+of+Freshwater+Fish&rft.issn=09066691&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - New aeromagnetic map of Wisconsin and some preliminary intepretations AN - 39258484; 3513035 AU - Cannon, W F AU - Daniels, D L AU - Nicholson, S W AU - Schulz, K J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39258484?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=New+aeromagnetic+map+of+Wisconsin+and+some+preliminary+intepretations&rft.au=Cannon%2C+W+F%3BDaniels%2C+D+L%3BNicholson%2C+S+W%3BSchulz%2C+K+J&rft.aulast=Cannon&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Definition of conservation units and listing implications for spotted owls AN - 39240439; 3531511 AU - Haig, S M AU - Wagner, R S AU - Forsman, ED AU - Mullins, T D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39240439?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Definition+of+conservation+units+and+listing+implications+for+spotted+owls&rft.au=Haig%2C+S+M%3BWagner%2C+R+S%3BForsman%2C+ED%3BMullins%2C+T+D&rft.aulast=Haig&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: University of Montana, Wildlife Biology Program, University of Montana, Missoula, MT 59812, USA; phone: 406-243-4493; email: scb2000@selway.umt.edu; URL: http://www.umt.edu/scb2000/ N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Assessment of potential contaminant effects on freshwater mussels in the South Florida ecosystem AN - 39240204; 3539662 AU - Ruessler, D S AU - Kernaghan, N J AU - Wieser, C M AU - Wiebe, J J AU - Gross, T S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39240204?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Assessment+of+potential+contaminant+effects+on+freshwater+mussels+in+the+South+Florida+ecosystem&rft.au=Ruessler%2C+D+S%3BKernaghan%2C+N+J%3BWieser%2C+C+M%3BWiebe%2C+J+J%3BGross%2C+T+S&rft.aulast=Ruessler&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: North American Benthological Society, 1041 New Hampshire Street, Lawrence, Kansas 66044, USA; URL: http://www.benthos.org/meeting/ N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Using geospatial technology to identify isolated populations of coastal cutthroat trout AN - 39239914; 3531501 AU - Gresswell, R E AU - Bateman, D S AU - Lienkaemper, G W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39239914?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Using+geospatial+technology+to+identify+isolated+populations+of+coastal+cutthroat+trout&rft.au=Gresswell%2C+R+E%3BBateman%2C+D+S%3BLienkaemper%2C+G+W&rft.aulast=Gresswell&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: University of Montana, Wildlife Biology Program, University of Montana, Missoula, MT 59812, USA; phone: 406-243-4493; email: scb2000@selway.umt.edu; URL: http://www.umt.edu/scb2000/ N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Satellite image mapping at the 1:250,000, 1:100,000 and 1:25,000 scales in the South Ross Sea Region AN - 39237340; 3536321 AU - Thomas, J-C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 2000: Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39237340?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Satellite+image+mapping+at+the+1%3A250%2C000%2C+1%3A100%2C000+and+1%3A25%2C000+scales+in+the+South+Ross+Sea+Region&rft.au=Thomas%2C+J-C&rft.aulast=Thomas&rft.aufirst=J-C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Government of the Northwest Territories, Box 1320, Yellowknife, NT X1A 2L9, Canada; phone: (867) 669-2301; fax: (867) 873-0169; URL: www.gov.nt.ca/ N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Relationship between listing under ESA and the president's forest management plan (FEMAT): Conservation strategies for amphibians AN - 39235463; 3531889 AU - Wagner, R S AU - Haig, S M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39235463?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Relationship+between+listing+under+ESA+and+the+president%27s+forest+management+plan+%28FEMAT%29%3A+Conservation+strategies+for+amphibians&rft.au=Wagner%2C+R+S%3BHaig%2C+S+M&rft.aulast=Wagner&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: University of Montana, Wildlife Biology Program, University of Montana, Missoula, MT 59812, USA; phone: 406-243-4493; email: scb2000@selway.umt.edu; URL: http://www.umt.edu/scb2000/ N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Vegetation map of the Circumpolar Region, Arctic and Boreal AN - 39226953; 3536319 AU - Fleming, MD Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science KW - U 2000: Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39226953?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Vegetation+map+of+the+Circumpolar+Region%2C+Arctic+and+Boreal&rft.au=Fleming%2C+MD&rft.aulast=Fleming&rft.aufirst=MD&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Government of the Northwest Territories, Box 1320, Yellowknife, NT X1A 2L9, Canada; phone: (867) 669-2301; fax: (867) 873-0169; URL: www.gov.nt.ca/ N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Assessing and monitoring the inland lakes of the great lakes cluster national parks using benthic invertebrates AN - 39225936; 3539612 AU - Horvath, T AU - Whitman, R AU - Goodrich, M AU - Last, L AU - Nevers, M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39225936?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Assessing+and+monitoring+the+inland+lakes+of+the+great+lakes+cluster+national+parks+using+benthic+invertebrates&rft.au=Horvath%2C+T%3BWhitman%2C+R%3BGoodrich%2C+M%3BLast%2C+L%3BNevers%2C+M&rft.aulast=Horvath&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: North American Benthological Society, 1041 New Hampshire Street, Lawrence, Kansas 66044, USA; URL: http://www.benthos.org/meeting/ N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Occurrence of antibiotics in Iowa streams, 1999 AN - 39221952; 3514712 AU - Kolpin, D W AU - Riley, D AU - Weyer, P AU - Meyer, M AU - Thurman, M Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39221952?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Occurrence+of+antibiotics+in+Iowa+streams%2C+1999&rft.au=Kolpin%2C+D+W%3BRiley%2C+D%3BWeyer%2C+P%3BMeyer%2C+M%3BThurman%2C+M&rft.aulast=Kolpin&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Effect of ore milling on the Animas river channels and flood plain near Eureka, Colorado AN - 39221362; 3513503 AU - Vincent, K R AU - Elliott, J G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39221362?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Effect+of+ore+milling+on+the+Animas+river+channels+and+flood+plain+near+Eureka%2C+Colorado&rft.au=Vincent%2C+K+R%3BElliott%2C+J+G&rft.aulast=Vincent&rft.aufirst=K&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Widespread evidence of the hydrolytic disproportionation of organic matter in geologic systems via aqueous-based redox reactions AN - 39216668; 3514570 AU - Price, L C AU - Mimura, K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39216668?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Widespread+evidence+of+the+hydrolytic+disproportionation+of+organic+matter+in+geologic+systems+via+aqueous-based+redox+reactions&rft.au=Price%2C+L+C%3BMimura%2C+K&rft.aulast=Price&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Energy mix of the 21st century: Lessons from the 20th century AN - 39214552; 3512128 AU - McCabe, P J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39214552?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Energy+mix+of+the+21st+century%3A+Lessons+from+the+20th+century&rft.au=McCabe%2C+P+J&rft.aulast=McCabe&rft.aufirst=P&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Geologic framework of the carolina slate belt in Southern Virginia: Insights from geologic mapping and U-PB geochronology AN - 39213117; 3514853 AU - Horton, JW Jr AU - Aleinikoff, J N AU - Burton, W C AU - Peper, JD:Hackley PC Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39213117?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Geologic+framework+of+the+carolina+slate+belt+in+Southern+Virginia%3A+Insights+from+geologic+mapping+and+U-PB+geochronology&rft.au=Horton%2C+JW+Jr%3BAleinikoff%2C+J+N%3BBurton%2C+W+C%3BPeper%2C+JD%3AHackley+PC&rft.aulast=Horton&rft.aufirst=JW&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Interactions between groundwater and wetlands in temperate climates AN - 39211255; 3513953 AU - Shedlock, R J AU - Phillips, P J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39211255?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Interactions+between+groundwater+and+wetlands+in+temperate+climates&rft.au=Shedlock%2C+R+J%3BPhillips%2C+P+J&rft.aulast=Shedlock&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Interpretation of super(14)C data in coastal and desert aquifers in California AN - 39209776; 3513255 AU - Izbicki, JA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39209776?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Regulated+Rivers%3A+Research+%26+Management&rft.atitle=Estimation+of+geomorphically+significant+flows+in+alpine+streams+of+the+Rocky+Mountains%2C+Colorado+%28USA%29&rft.au=Surian%2C+N%3BAndrews%2C+ED&rft.aulast=Surian&rft.aufirst=N&rft.date=1999-08-01&rft.volume=15&rft.issue=4&rft.spage=273&rft.isbn=&rft.btitle=&rft.title=Regulated+Rivers%3A+Research+%26+Management&rft.issn=08869375&rft_id=info:doi/10.1002%2F%28SICI%291099-1646%28199907%2F08%2915%3A43.0.CO%3B2-B LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Global seismic hazard map AN - 39209385; 3513132 AU - Shedlock, K AU - Giardini, D AU - Grunthal, G AU - Zhang, P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39209385?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Global+seismic+hazard+map&rft.au=Shedlock%2C+K%3BGiardini%2C+D%3BGrunthal%2C+G%3BZhang%2C+P&rft.aulast=Shedlock&rft.aufirst=K&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Geologic setting and tectonic evolution of the Bald Mountain massive sulfide deposit, northern Maine: Early Ordovician mineralization in a primitive volcanic arc AN - 39207166; 3512934 AU - Foose, M P AU - Slack, J F AU - Ayuso, R A AU - Schulz, K J AU - Busby, C J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39207166?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Geologic+setting+and+tectonic+evolution+of+the+Bald+Mountain+massive+sulfide+deposit%2C+northern+Maine%3A+Early+Ordovician+mineralization+in+a+primitive+volcanic+arc&rft.au=Foose%2C+M+P%3BSlack%2C+J+F%3BAyuso%2C+R+A%3BSchulz%2C+K+J%3BBusby%2C+C+J&rft.aulast=Foose&rft.aufirst=M&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Evolution of sinkhole lakes in north-central Florida AN - 39206427; 3512416 AU - Kindinger, J L AU - Davis, J B AU - Flocks, J G Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39206427?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Evolution+of+sinkhole+lakes+in+north-central+Florida&rft.au=Kindinger%2C+J+L%3BDavis%2C+J+B%3BFlocks%2C+J+G&rft.aulast=Kindinger&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Thermal history of the butte porphyry system, Montana AN - 39204412; 3514274 AU - Snee, L AU - Miggins, D AU - Geissman, J AU - Reed, M AU - Dilles, J AU - Zhang, L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39204412?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Thermal+history+of+the+butte+porphyry+system%2C+Montana&rft.au=Snee%2C+L%3BMiggins%2C+D%3BGeissman%2C+J%3BReed%2C+M%3BDilles%2C+J%3BZhang%2C+L&rft.aulast=Snee&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Nowhere to hide: Ground-nesting waterbirds and mammalian predators along the Virginia barrier Islands AN - 39196497; 3531445 AU - Erwin, R M AU - Truitt, B R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39196497?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Nowhere+to+hide%3A+Ground-nesting+waterbirds+and+mammalian+predators+along+the+Virginia+barrier+Islands&rft.au=Erwin%2C+R+M%3BTruitt%2C+B+R&rft.aulast=Erwin&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: University of Montana, Wildlife Biology Program, University of Montana, Missoula, MT 59812, USA; phone: 406-243-4493; email: scb2000@selway.umt.edu; URL: http://www.umt.edu/scb2000/ N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Regionalizing gap analysis data: Lessons learned, consequences evaluated AN - 39196292; 3531354 AU - Brannon, R AU - Crist, P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39196292?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Regionalizing+gap+analysis+data%3A+Lessons+learned%2C+consequences+evaluated&rft.au=Brannon%2C+R%3BCrist%2C+P&rft.aulast=Brannon&rft.aufirst=R&rft.date=2000-12-31&rft.volume=35&rft.issue=4&rft.spage=957&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: University of Montana, Wildlife Biology Program, University of Montana, Missoula, MT 59812, USA; phone: 406-243-4493; email: scb2000@selway.umt.edu; URL: http://www.umt.edu/scb2000/ N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Spatial subsidies in the twilight zone: Food web structure of outer continental shelf reef fishes AN - 39194012; 3528081 AU - Weaver, D C AU - Sulak, K J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1200: Aquatic Science KW - U 2000:Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39194012?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Spatial+subsidies+in+the+twilight+zone%3A+Food+web+structure+of+outer+continental+shelf+reef+fishes&rft.au=Weaver%2C+D+C%3BSulak%2C+K+J&rft.aulast=Weaver&rft.aufirst=D&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Fisheries Society, 5410 Grosvenor Ln., Ste. 110, Bethesda, MD 20814-2199, USA; URL: http://www.sdafs.org/ N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Estimation of fire/flood chronology from alluvial fan stratigraphy in the Buffalo Creek watershed, Colorado AN - 39191453; 3514634 AU - Elliott, J G AU - Parker, R S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39191453?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Estimation+of+fire%2Fflood+chronology+from+alluvial+fan+stratigraphy+in+the+Buffalo+Creek+watershed%2C+Colorado&rft.au=Elliott%2C+J+G%3BParker%2C+R+S&rft.aulast=Elliott&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Hydraulic conductivity reductions in unconsolidated alluvial sediment resulting from clay dispersion AN - 39188936; 3513709 AU - King, L J AU - Breit, G N AU - Olsen, H W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39188936?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Hydraulic+conductivity+reductions+in+unconsolidated+alluvial+sediment+resulting+from+clay+dispersion&rft.au=King%2C+L+J%3BBreit%2C+G+N%3BOlsen%2C+H+W&rft.aulast=King&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Evaluation of the potential effects of papermill effluents on freshwater mussels in Rice Creek, Florida AN - 39188062; 3539660 AU - Kernaghan, N J AU - Ruessler, D S AU - Holm, SE AU - Gross, T S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39188062?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Evaluation+of+the+potential+effects+of+papermill+effluents+on+freshwater+mussels+in+Rice+Creek%2C+Florida&rft.au=Kernaghan%2C+N+J%3BRuessler%2C+D+S%3BHolm%2C+SE%3BGross%2C+T+S&rft.aulast=Kernaghan&rft.aufirst=N&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: North American Benthological Society, 1041 New Hampshire Street, Lawrence, Kansas 66044, USA; URL: http://www.benthos.org/meeting/ N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Charcoal record in sediments and fire ecology history of pinion-juniper Uplands of the uncompahgre uplift, Western Colorado AN - 39187003; 3514893 AU - Scott, R B AU - Hood, W C AU - Johnson, J AU - Tausch, R AU - Sexton, TO AU - Perrotti, P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39187003?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Charcoal+record+in+sediments+and+fire+ecology+history+of+pinion-juniper+Uplands+of+the+uncompahgre+uplift%2C+Western+Colorado&rft.au=Scott%2C+R+B%3BHood%2C+W+C%3BJohnson%2C+J%3BTausch%2C+R%3BSexton%2C+TO%3BPerrotti%2C+P&rft.aulast=Scott&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Impacts of urbanization on groundwater quantity and quality in the Santa Ana basin, CA AN - 39186796; 3512910 AU - Belitz, K Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39186796?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Impacts+of+urbanization+on+groundwater+quantity+and+quality+in+the+Santa+Ana+basin%2C+CA&rft.au=Belitz%2C+K&rft.aulast=Belitz&rft.aufirst=K&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Analcime in Wasatch Plateau Coal, Utah AN - 39186193; 3514311 AU - Fishman, N S AU - Turner, CE AU - Peterson, F AU - Dubiel, R AU - Finkelman, R AU - Tabet, D AU - Quick, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39186193?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Analcime+in+Wasatch+Plateau+Coal%2C+Utah&rft.au=Fishman%2C+N+S%3BTurner%2C+CE%3BPeterson%2C+F%3BDubiel%2C+R%3BFinkelman%2C+R%3BTabet%2C+D%3BQuick%2C+J&rft.aulast=Fishman&rft.aufirst=N&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Local water-table highs in the surficial aquifer of central Delaware AN - 39185387; 3514088 AU - Hinaman, K C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39185387?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Local+water-table+highs+in+the+surficial+aquifer+of+central+Delaware&rft.au=Hinaman%2C+K+C&rft.aulast=Hinaman&rft.aufirst=K&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Application of watershed modeling for estimation of spatially and temporally distributed recharge AN - 39183839; 3512481 AU - Hevesi, JA AU - Flint, AL AU - Flint, LE AU - D'Agnese, F AU - Faunt, C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39183839?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Application+of+watershed+modeling+for+estimation+of+spatially+and+temporally+distributed+recharge&rft.au=Hevesi%2C+JA%3BFlint%2C+AL%3BFlint%2C+LE%3BD%27Agnese%2C+F%3BFaunt%2C+C&rft.aulast=Hevesi&rft.aufirst=JA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Hydrogeologic-framework and groundwater-flow models of the Death Valley region, Nevada and California AN - 39183817; 3512476 AU - Faunt, C C AU - D'Agnese, F A AU - Hill, M C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39183817?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Hydrogeologic-framework+and+groundwater-flow+models+of+the+Death+Valley+region%2C+Nevada+and+California&rft.au=Faunt%2C+C+C%3BD%27Agnese%2C+F+A%3BHill%2C+M+C&rft.aulast=Faunt&rft.aufirst=C&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Holocene charcoal as a record of climate and fire in the Rio Puerco, NM AN - 39183737; 3513863 AU - Pavich, MJ AU - Gellis, A C AU - Lovern, V S AU - McGeehin, J P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39183737?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Holocene+charcoal+as+a+record+of+climate+and+fire+in+the+Rio+Puerco%2C+NM&rft.au=Pavich%2C+MJ%3BGellis%2C+A+C%3BLovern%2C+V+S%3BMcGeehin%2C+J+P&rft.aulast=Pavich&rft.aufirst=MJ&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Environmental research and speculations from space: The dust problem AN - 39183027; 3513101 AU - Shinn, E AU - Garrison, V AU - Smith, G AU - Weir, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39183027?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Environmental+research+and+speculations+from+space%3A+The+dust+problem&rft.au=Shinn%2C+E%3BGarrison%2C+V%3BSmith%2C+G%3BWeir%2C+J&rft.aulast=Shinn&rft.aufirst=E&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Darcian approach and practicality: Determination of basin-scale recharge rates from sparse point measurements AN - 39182455; 3512872 AU - Nimmo, J R AU - Lewis, A M AU - Stonestrom, DA AU - Deason, JA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39182455?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Darcian+approach+and+practicality%3A+Determination+of+basin-scale+recharge+rates+from+sparse+point+measurements&rft.au=Nimmo%2C+J+R%3BLewis%2C+A+M%3BStonestrom%2C+DA%3BDeason%2C+JA&rft.aulast=Nimmo&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Sidescan sonar imagery and surficial geologic interpretation of the sea floor in New Haven Harbor, Connecticut AN - 39181330; 3514754 AU - Poppe, L J AU - Knebel, HJ AU - Haase, E J AU - Parolski, K F AU - Lewis, R S AU - Digiacomo-Cohen, M L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39181330?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Sidescan+sonar+imagery+and+surficial+geologic+interpretation+of+the+sea+floor+in+New+Haven+Harbor%2C+Connecticut&rft.au=Poppe%2C+L+J%3BKnebel%2C+HJ%3BHaase%2C+E+J%3BParolski%2C+K+F%3BLewis%2C+R+S%3BDigiacomo-Cohen%2C+M+L&rft.aulast=Poppe&rft.aufirst=L&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Preliminary paleoseismic history of the hubbell spring fault zone near Albuquerque, New Mexico AN - 39180607; 3512235 AU - Personius, S F AU - Mahan, SA AU - Eppes, M C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39180607?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Preliminary+paleoseismic+history+of+the+hubbell+spring+fault+zone+near+Albuquerque%2C+New+Mexico&rft.au=Personius%2C+S+F%3BMahan%2C+SA%3BEppes%2C+M+C&rft.aulast=Personius&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Sediment yield following severe volcanic disturbance-two-decade perspective from Mount St. Helens AN - 39178610; 3513173 AU - Major, J J AU - Pierson, T C AU - Dinehart, R L Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39178610?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Sediment+yield+following+severe+volcanic+disturbance-two-decade+perspective+from+Mount+St.+Helens&rft.au=Major%2C+J+J%3BPierson%2C+T+C%3BDinehart%2C+R+L&rft.aulast=Major&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Review of the isotopic calibration points for the geomagnetic polarity time scale, in the interval 83 to 33 Ma (C34n to C13n) AN - 39178094; 3512384 AU - Obradovich, J D AU - Hicks, J F Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39178094?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Review+of+the+isotopic+calibration+points+for+the+geomagnetic+polarity+time+scale%2C+in+the+interval+83+to+33+Ma+%28C34n+to+C13n%29&rft.au=Obradovich%2C+J+D%3BHicks%2C+J+F&rft.aulast=Obradovich&rft.aufirst=J&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Source of radon in ground water of fractured crystalline rocks: A diffusion model AN - 39178039; 3514693 AU - Wood, W W AU - Kraemer, T F Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39178039?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Source+of+radon+in+ground+water+of+fractured+crystalline+rocks%3A+A+diffusion+model&rft.au=Wood%2C+W+W%3BKraemer%2C+T+F&rft.aulast=Wood&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Drainage changes associated with the Yellowstone hotspot AN - 39177965; 3514649 AU - Pierce, K L AU - Morgan, LA Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39177965?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Drainage+changes+associated+with+the+Yellowstone+hotspot&rft.au=Pierce%2C+K+L%3BMorgan%2C+LA&rft.aulast=Pierce&rft.aufirst=K&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Modern sediment budgets and mudbank growth in Florida bay AN - 39177288; 3513435 AU - Halley, R B AU - Prager, E J AU - Yates, K K AU - Holmes, C W AU - Stumpf, R P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39177288?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Modern+sediment+budgets+and+mudbank+growth+in+Florida+bay&rft.au=Halley%2C+R+B%3BPrager%2C+E+J%3BYates%2C+K+K%3BHolmes%2C+C+W%3BStumpf%2C+R+P&rft.aulast=Halley&rft.aufirst=R&rft.date=2000-12-31&rft.volume=178&rft.issue=3-4&rft.spage=191&rft.isbn=&rft.btitle=&rft.title=Aquaculture&rft.issn=00448486&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - First products of the North American magnetic anomaly database program AN - 39177269; 3512546 AU - Finn, CA AU - Velez, J AU - Pilkington, M AU - Miles, W AU - Hernandez, I AU - Kucks, R AU - Saltus, R AU - Bankey, V AU - Hill, P Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39177269?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=First+products+of+the+North+American+magnetic+anomaly+database+program&rft.au=Finn%2C+CA%3BVelez%2C+J%3BPilkington%2C+M%3BMiles%2C+W%3BHernandez%2C+I%3BKucks%2C+R%3BSaltus%2C+R%3BBankey%2C+V%3BHill%2C+P&rft.aulast=Finn&rft.aufirst=CA&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Development and validation of procedures for monitoring endocrine and reproductive function in freshwater mussels AN - 39170455; 3539658 AU - Gross, T S AU - Wieser, C M AU - Kernaghan, N J AU - Ruessler, D S Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39170455?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Development+and+validation+of+procedures+for+monitoring+endocrine+and+reproductive+function+in+freshwater+mussels&rft.au=Gross%2C+T+S%3BWieser%2C+C+M%3BKernaghan%2C+N+J%3BRuessler%2C+D+S&rft.aulast=Gross&rft.aufirst=T&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: North American Benthological Society, 1041 New Hampshire Street, Lawrence, Kansas 66044, USA; URL: http://www.benthos.org/meeting/ N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Large recharge/precipitation ratio on the coastal sabkhas of Abu Dhabi AN - 39170286; 3513261 AU - Sanford, W E AU - Wood, W W Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39170286?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Large+recharge%2Fprecipitation+ratio+on+the+coastal+sabkhas+of+Abu+Dhabi&rft.au=Sanford%2C+W+E%3BWood%2C+W+W&rft.aulast=Sanford&rft.aufirst=W&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Cottonwood mortality resulting from alluvial water-table decline AN - 39148004; 3492962 AU - Auble, G T AU - Scott, M L AU - Shafroth, P B AU - Lines, G C Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39148004?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Cottonwood+mortality+resulting+from+alluvial+water-table+decline&rft.au=Auble%2C+G+T%3BScott%2C+M+L%3BShafroth%2C+P+B%3BLines%2C+G+C&rft.aulast=Auble&rft.aufirst=G&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Virginia Institute for Marine Science (VIMS), P.O. Box 1346, Gloucester Point, VA 23062-1346, USA; phone: 804-684-7000; email: webmaster@vims.edu; URL: www.vims.edu, Abstracts available. Contact VIMS for price. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Application of stochastic landslide forecasting models: Case studies in policy analysis AN - 39147716; 3514591 AU - Bernknopf, R L AU - Soller AU - Campbell, R H AU - Davis, J F AU - Sutter, J F AU - Dinitz, L B Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39147716?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Application+of+stochastic+landslide+forecasting+models%3A+Case+studies+in+policy+analysis&rft.au=Bernknopf%2C+R+L%3BSoller%3BCampbell%2C+R+H%3BDavis%2C+J+F%3BSutter%2C+J+F%3BDinitz%2C+L+B&rft.aulast=Bernknopf&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Fluid pathways and alteration in the Mormon Peak detachment fault system, southeastern Nevada AN - 39147622; 3514547 AU - Diehl, S F AU - Anderson, R E AU - Humphrey, J D Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39147622?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Fluid+pathways+and+alteration+in+the+Mormon+Peak+detachment+fault+system%2C+southeastern+Nevada&rft.au=Diehl%2C+S+F%3BAnderson%2C+R+E%3BHumphrey%2C+J+D&rft.aulast=Diehl&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Geological Society of America, Member Services Department, PO Box 9140, Boulder, CO 80301, USA; email: ncarlson@geosociety.org, Abstracts available: US$35.00. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Gap phase dynamics in a bottomland hardwood forest in northeast Arkansas AN - 39144963; 3492858 AU - King, S L AU - Antrobus, T J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39144963?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Gap+phase+dynamics+in+a+bottomland+hardwood+forest+in+northeast+Arkansas&rft.au=King%2C+S+L%3BAntrobus%2C+T+J&rft.aulast=King&rft.aufirst=S&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Virginia Institute for Marine Science (VIMS), P.O. Box 1346, Gloucester Point, VA 23062-1346, USA; phone: 804-684-7000; email: webmaster@vims.edu; URL: www.vims.edu, Abstracts available. Contact VIMS for price. N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Climate change: Potential wetland impacts and interaction AN - 39139088; 3493218 AU - Burkett, V AU - Kusler, J Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39139088?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Climate+change%3A+Potential+wetland+impacts+and+interaction&rft.au=Burkett%2C+V%3BKusler%2C+J&rft.aulast=Burkett&rft.aufirst=V&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Water Resources Association, 4 West Federal Street, P.O. Box 1626, Middleburg, VA 20118-1626, USA; phone: 540-687-8390; fax: 540-687-8395; email: awrahq@aol.com; URL: http://www.awra.org/~awra, Abstracts available. Price $60 (members) and $75 (non-members). N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Pre-vegetated mat technique for restoration of submersed aquatic vegetation AN - 39138857; 3493109 AU - Boustany, R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39138857?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Pre-vegetated+mat+technique+for+restoration+of+submersed+aquatic+vegetation&rft.au=Boustany%2C+R&rft.aulast=Boustany&rft.aufirst=R&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Virginia Institute for Marine Science (VIMS), P.O. Box 1346, Gloucester Point, VA 23062-1346, USA; phone: 804-684-7000; email: webmaster@vims.edu; URL: www.vims.edu, Abstracts available. Contact VIMS for price. Poster Paper N1 - Last updated - 2011-10-26 ER - TY - CPAPER T1 - Sediment and associated macronutrient trapping in forested wetlands along the Pocomoke River AN - 39128291; 3493128 AU - Herbst, A J AU - Hupp, C R AU - Schening, M R Y1 - 2000/12/31/ PY - 2000 DA - 2000 Dec 31 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39128291?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Sediment+and+associated+macronutrient+trapping+in+forested+wetlands+along+the+Pocomoke+River&rft.au=Herbst%2C+A+J%3BHupp%2C+C+R%3BSchening%2C+M+R&rft.aulast=Herbst&rft.aufirst=A&rft.date=2000-12-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Virginia Institute for Marine Science (VIMS), P.O. Box 1346, Gloucester Point, VA 23062-1346, USA; phone: 804-684-7000; email: webmaster@vims.edu; URL: www.vims.edu, Abstracts available. Contact VIMS for price. Poster Paper N1 - Last updated - 2011-10-26 ER - TY - JOUR T1 - The Amazon reveals its secrets--partly AN - 17751516; 4805507 AB - The amount of solar irradiation received at any one time and place on Earth's surface, or insolation, is determined by long-term cyclical changes in the rotation and orbit of Earth around the sun. These insolation changes are thought to play an important role in driving global climate change, but little is known about their effects at high versus low latitudes. Did climate change in the tropics lead or lag ice volume changes at higher latitudes during global ice age cycles? And is tropical climate variability caused by changes in seasonal insolation at low latitudes, or do insolation changes at high latitudes affect the tropics indirectly through long distance effects of large-scale climate features such as El Nino-Southern Oscillation? JF - Science (Washington) AU - Betancourt, J L AD - US Geol. Surv., Tucson, AZ 85745, USA, jlbetanc@usgs.gov Y1 - 2000/12/22/ PY - 2000 DA - 2000 Dec 22 SP - 2274 EP - 2275 PB - American Association for the Advancement of Science VL - 290 IS - 5500 SN - 0036-8075, 0036-8075 KW - South America, Amazon R. Basin KW - Ecology Abstracts KW - Paleoclimatology KW - Climatic changes KW - Global warming KW - El Nino phenomena KW - D 04500:Atmosphere UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17751516?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+%28Washington%29&rft.atitle=The+Amazon+reveals+its+secrets--partly&rft.au=Betancourt%2C+J+L&rft.aulast=Betancourt&rft.aufirst=J&rft.date=2000-12-22&rft.volume=290&rft.issue=5500&rft.spage=2274&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Climatic changes; Global warming; Paleoclimatology; El Nino phenomena ER - TY - JOUR T1 - Mortality and kidney histopathology of chinook salmon Oncorhynchus tshawytscha exposed to virulent and attenuated Renibacterium salmoninarum strains AN - 18020731; 4858791 AB - An isolate of Renibacterium salmoninarum (strain MT 239) exhibiting reduced virulence in rainbow trout Oncorhynchus mykiss was tested for its ability to cause bacterial kidney disease (BKD) in chinook salmon Oncorhynchus tshawytscha, a salmonid species more susceptible to BKD. Juvenile chinook salmon were exposed to either 33209, the American Type Culture Collection type strain of R. salmoninarum, or to MT 239, by an intraperitoneal injection of 1 x 10 super(3) or 1 x 10 super(6) bacteria fish super(-1), or by a 24 h immersion in 1 x 10 super(5) or 1 x 10 super(7) bacteria ml super(-1). For 22 wk fish were held in 12 degree C water and monitored for mortality. Fish were sampled periodically for histological examination of kidney tissues. In contrast to fish exposed to the high dose of strain 33209 by either injection or immersion, none of the fish exposed to strain MT 239 by either route exhibited gross clinical signs or histopathological changes indicative of BKD. However, the MT 239 strain was detected by the direct fluorescent antibody technique in 4 fish that died up to 11 wk after the injection challenge and in 5 fish that died up to 20 wk after the immersion challenge. Viable MT 239 was isolated in culture from 3 fish that died up to 13 wk after the immersion challenge. Total mortality in groups injected with the high dose of strain MT 239 (12%) was also significantly lower (p < 0.05) than mortality in groups injected with strain 33209 (73%). These data indicate that the attenuated virulence observed with MT 239 in rainbow trout also occurs in a salmonid species highly susceptible to BKD. The reasons for the attenuated virulence of MT 239 were not determined but may be related to the reduced levels of the putative virulence protein p57 associated with this strain. JF - Diseases of Aquatic Organisms AU - O'Farrell, CL AU - Elliott, D G AU - Landolt, M L AD - Western Fisheries Research Center, Biological Resources Division, United States Geological Survey, 6505 N.E. 65th Street, Seattle, WA 98115, USA, diane_elliott@usgs.gov Y1 - 2000/12/21/ PY - 2000 DA - 2000 Dec 21 SP - 199 EP - 209 VL - 43 IS - 3 SN - 0177-5103, 0177-5103 KW - Chinook salmon KW - bacterial kidney disease KW - Microbiology Abstracts B: Bacteriology; ASFA 1: Biological Sciences & Living Resources; ASFA Aquaculture Abstracts KW - Marine KW - Mortality KW - Pathogenic bacteria KW - Subpopulations KW - Bacterial diseases KW - Brackish KW - Histopathology KW - Kidneys KW - Freshwater KW - Oncorhynchus tshawytscha KW - Virulence KW - Renibacterium salmoninarum KW - Fish diseases KW - Kidney KW - J 02862:Infection KW - Q1 08587:Diseases of Cultured Organisms KW - Q1 08484:Species interactions: parasites and diseases KW - Q3 08587:Diseases of Cultured Organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18020731?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Diseases+of+Aquatic+Organisms&rft.atitle=Mortality+and+kidney+histopathology+of+chinook+salmon+Oncorhynchus+tshawytscha+exposed+to+virulent+and+attenuated+Renibacterium+salmoninarum+strains&rft.au=O%27Farrell%2C+CL%3BElliott%2C+D+G%3BLandolt%2C+M+L&rft.aulast=O%27Farrell&rft.aufirst=CL&rft.date=2000-12-21&rft.volume=43&rft.issue=3&rft.spage=199&rft.isbn=&rft.btitle=&rft.title=Diseases+of+Aquatic+Organisms&rft.issn=01775103&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Virulence; Mortality; Fish diseases; Pathogenic bacteria; Subpopulations; Bacterial diseases; Histopathology; Kidneys; Kidney; Renibacterium salmoninarum; Oncorhynchus tshawytscha; Freshwater; Brackish; Marine ER - TY - JOUR T1 - Water movement through a thick unsaturated zone underlying an intermittent stream in the western Mojave Desert, southern California, USA AN - 17758865; 4820121 AB - Previous studies indicated that small amounts of recharge occur as infiltration of intermittent streamflow in washes in the upper Mojave River basin, in the western Mojave Desert, near Victorville, California. These washes flow only a few days each year after large storms. To reach the water table, water must pass through an unsaturated zone that is more than 130 m thick. Results of this study, done in 1994-1998, show that infiltration to depths below the root zone did not occur at control sites away from the wash. At these sites, volumetric water contents were as low as 0.01 and water potentials (measured as the combination of solute and matric potentials using a water activity meter) were as negative as - 14,000 kPa. Water-vapor movement was controlled by highly negative solute potentials associated with the accumulation of soluble salts in the unsaturated zone. Highly negative matric potentials above and below the zone of maximum solute accumulation result from movement of water vapor toward the highly negative solute potentials at that depth. The delta super(18)O and delta D (delta oxygen-18 and delta deuterium) isotopic composition of water in coarse-grained deposits plots along a Rayleigh distillation line consistent with removal of water in coarse-grained layers by vapor transport. Beneath Oro Grande Wash, water moved to depths below the root zone and, presumably, to the water table about 130 m below land surface. Underneath Oro Grande Wash, volumetric water contents were as high as 0.27 and water potentials (measured as matric potential using tensiometers) were between -1.8 and -50 kPa. On the basis of tritium data, water requires at least 180-260 years to infiltrate to the water table. Clay layers impede the downward movement of water. Seasonal changes in water vapor composition underneath the wash are consistent with the rapid infiltration of a small quantity of water to great depths and subsequent equilibration of vapor with water in the surrounding material. It may be possible to supplement natural recharge from the wash with imported water. Recharge to the wash may be advantageous because the unsaturated zone is not as dry as most areas in the desert and concentrations of soluble salts are generally lower underneath the wash. JF - Journal of Hydrology (Amsterdam) AU - Izbicki, JA AU - Radyk, J AU - Michel, R L AD - US Geological Survey, WRD, 5735 Kearny Villa Road, Suite O, San Diego, CA 92123, USA, jaizbick@usgs.gov Y1 - 2000/12/05/ PY - 2000 DA - 2000 Dec 05 SP - 194 EP - 217 VL - 238 IS - 3-4 SN - 0022-1694, 0022-1694 KW - USA, California KW - Water Resources Abstracts; Aqualine Abstracts KW - Recharge KW - Volumetric analysis KW - Soil Water Movement KW - Aeration Zone KW - Intermittent Streams KW - Soil/water systems KW - Soil Water KW - Volumetric Analysis KW - Salts KW - Soil Water Potential KW - Aeration (see also Oxygenation, Re-oxygenation) KW - Infiltration KW - Groundwater Recharge KW - AQ 00001:Water Resources and Supplies KW - SW 0845:Water in soils KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17758865?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology+%28Amsterdam%29&rft.atitle=Water+movement+through+a+thick+unsaturated+zone+underlying+an+intermittent+stream+in+the+western+Mojave+Desert%2C+southern+California%2C+USA&rft.au=Izbicki%2C+JA%3BRadyk%2C+J%3BMichel%2C+R+L&rft.aulast=Izbicki&rft.aufirst=JA&rft.date=2000-12-05&rft.volume=238&rft.issue=3-4&rft.spage=194&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology+%28Amsterdam%29&rft.issn=00221694&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Volumetric analysis; Recharge; Salts; Aeration (see also Oxygenation, Re-oxygenation); Soil/water systems; Infiltration; Soil Water Movement; Soil Water Potential; Aeration Zone; Intermittent Streams; Volumetric Analysis; Soil Water; Groundwater Recharge ER - TY - JOUR T1 - Transport of free and particulate-associated bacteria in karst AN - 17044583; 4820120 AB - Karst aquifers, because of their unique hydrogeologic characteristics, are extremely susceptible to contamination by pathogens. Here we present the results of an investigation of contamination of a karst aquifer by fecal indicator bacteria. Two wells intercepting zones with contrasting effective hydraulic conductivities, as determined by pump test, were monitored both during the dry season and in response to a rain event. Samples were also collected from the adjacent ephemeral surface stream, which is known to be impacted by an upstream wastewater treatment plant after rainfall. Whole water and suspended sediment samples were analyzed for fecal coliforms and enterococci. During the dry season, pumping over a 2-day period resulted in increases in concentrations of fecal coliforms to greater than 10,000 CFU/100 ml in the high-conductivity well; enterococci and total suspended solids also increased, to a lesser degree. Toward the end of the pumping period, as much as 50% of the fecal coliforms were associated with suspended sediment. Irrigation of an up-gradient pine plantation with primary-treated wastewater is the probable source of the bacterial contamination. Sampling after a rain event revealed the strong influence of water quality of the adjacent Terrieu Creek on the ground water. Bacterial concentrations in the wells showed a rapid response to increased concentrations in the surface water, with fecal coliform concentrations in ground water ultimately reaching 60,000 CFU/100 ml. Up to 100% of the bacteria in the ground water was associated with suspended sediment at various times. The results of this investigation are evidence of the strong influence of surface water on ground water in karst terrain, including that of irrigation water. The large proportion of bacteria associated with particulates in the ground water has important implications for public health, as bacteria associated with particulates may be more persistent and more difficult to inactivate. The high bacterial concentrations found in both wells, despite the difference in hydraulic conductivity, demonstrates the difficulty of predicting vulnerability of individual wells to bacterial contamination in karst. The extreme temporal variability in bacterial concentrations underscores the importance of event-based monitoring of the bacterial quality of public water supplies in karst. JF - Journal of Hydrology (Amsterdam) AU - Mahler, B J AU - Personne, J-C AU - Lods, G F AU - Drogue, C AD - US Geological Survey, 8027 Exchange Drive, Austin, TX 78754, USA, bjmahler@usgs.gov Y1 - 2000/12/05/ PY - 2000 DA - 2000 Dec 05 SP - 179 EP - 193 VL - 238 IS - 3-4 SN - 0022-1694, 0022-1694 KW - Pollution Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Aquifers KW - Limestone KW - Karst KW - Microbial contamination KW - Water pollution measurements KW - Hydrology KW - Suspended load KW - Wastewater treatment plants KW - Bacteria KW - Coliforms KW - Fecal coliforms KW - Water Quality KW - Pathogens KW - Suspended particulate matter KW - Karst Hydrology KW - Transport KW - Geohydrology KW - Groundwater (see also Aquifers) KW - Groundwater KW - Pathogenic organism KW - Water quality (Natural waters) KW - AQ 00001:Water Resources and Supplies KW - P 2000:FRESHWATER POLLUTION KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17044583?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology+%28Amsterdam%29&rft.atitle=Transport+of+free+and+particulate-associated+bacteria+in+karst&rft.au=Mahler%2C+B+J%3BPersonne%2C+J-C%3BLods%2C+G+F%3BDrogue%2C+C&rft.aulast=Mahler&rft.aufirst=B&rft.date=2000-12-05&rft.volume=238&rft.issue=3-4&rft.spage=179&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology+%28Amsterdam%29&rft.issn=00221694&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Wastewater treatment plants; Aquifers; Bacteria; Fecal coliforms; Limestone; Hydrology; Suspended particulate matter; Pathogens; Water pollution measurements; Microbial contamination; Transport; Groundwater (see also Aquifers); Suspended load; Karst; Pathogenic organism; Water quality (Natural waters); Coliforms; Karst Hydrology; Geohydrology; Water Quality; Groundwater ER - TY - JOUR T1 - Editor's Message AN - 860392314; 14382425 JF - Hydrogeology Journal AU - Voss, Clifford I AU - Wilson, William E AU - Skinner, Andrew AD - U.S. Geological Survey, 431 National Center, Reston, VA 20192, USA E-mail: cvoss[AT]usgs.gov Fax: +1-703-648-5274, US Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 577 EP - 578 PB - Springer-Verlag, P.O. Box 2485 Secaucus NJ 07096-2485 USA VL - 8 IS - 6 SN - 1431-2174, 1431-2174 KW - Water Resources Abstracts UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/860392314?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrogeology+Journal&rft.atitle=Editor%27s+Message&rft.au=Voss%2C+Clifford+I%3BWilson%2C+William+E%3BSkinner%2C+Andrew&rft.aulast=Voss&rft.aufirst=Clifford&rft.date=2000-12-01&rft.volume=8&rft.issue=6&rft.spage=577&rft.isbn=&rft.btitle=&rft.title=Hydrogeology+Journal&rft.issn=14312174&rft_id=info:doi/10.1007%2FPL00010981 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2011-12-14 DO - http://dx.doi.org/10.1007/PL00010981 ER - TY - JOUR T1 - The United States Board on Geographic Names: Standardization or Regulation? AN - 85525993; 200105302 AB - The US Board on Geographic Names was created in 1890 to standardize the use of geographic names on federal maps & documents & was established in its present form in 1947 by public law. The Board is responsible for geographic name usage & application throughout the federal government & its members must approve a name change or new name before it can be applied to federal maps & publications. To accomplish its mission, the Board has developed principles, policies, & procedures for use in the standardization process. The Board is also responsible legally for the promulgation of standardized names, whether or not these names have ever been controversial, & today this is accomplished by the universal availability of electronic databases for domestic & foreign names. This paper examines the development of Board policies & the implementation of these policies to achieve standardization with a view to relating these policies & activities to questions of standardization or regulation. 13 References. Adapted from the source document JF - Names AU - Payne, Roger L AD - US Geological Survey rpayne@usgs.gov Y1 - 2000/12// PY - 2000 DA - December 2000 SP - 177 EP - 192 VL - 48 IS - 3-4 SN - 0027-7738, 0027-7738 KW - Toponymy (90550) KW - Language Standardization (43900) KW - United States of America (92750) KW - article KW - 5119: descriptive linguistics; onomastics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85525993?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Allba&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Names&rft.atitle=The+United+States+Board+on+Geographic+Names%3A+Standardization+or+Regulation%3F&rft.au=Payne%2C+Roger+L&rft.aulast=Payne&rft.aufirst=Roger&rft.date=2000-12-01&rft.volume=48&rft.issue=3-4&rft.spage=177&rft.isbn=&rft.btitle=&rft.title=Names&rft.issn=00277738&rft_id=info:doi/ LA - English DB - Linguistics and Language Behavior Abstracts (LLBA) N1 - Date revised - 2003-10-01 N1 - Last updated - 2016-09-27 N1 - CODEN - NAMSEP N1 - SubjectsTermNotLitGenreText - United States of America (92750); Toponymy (90550); Language Standardization (43900) ER - TY - JOUR T1 - Analysis of 20th century rainfall and streamflow to characterize drought and water resources in Puerto Rico AN - 18564154; 5219923 AB - During the period from 1990 to 1997, annual rainfall accumulation averaged 87% of normal at the 12 stations with the longest period of record in Puerto Rico, a Caribbean island with a 1999 population of 3.8 million. Streamflow in rivers supplying the La Plata and Loiza reservoirs, the principal water supply of the San Juan metropolitan area, was at or below the 10th flow percentile for 27% to 50% of the time between December 1993 and May 1996. Diminished reservoir levels in 1994 and 1995 affected more than 1 million people in the San Juan metropolitan area. Water rationing was implemented during this period and significant agricultural losses, valued at $165 million, were recorded in 1994. The public endured a year of mandatory water rationing in which sections of the city had their water-distribution networks shut off for 24 to 36 hours on alternate days. During the winter and spring of 1997-1998, water was rationed to more than 200,000 people in northwestern Puerto Rico because water level in the Guajataca reservoir was well below normal for two years because of rainfall deficits. The drought period of 1993-1996 was comparable in magnitude to a drought in 1966-1968, but water rationing was more severe during the 1993-1996 period, indicating that water management issues such as demand, storage capacity, water production and losses, and per capita consumption are increasingly important as population and development in Puerto Rico expand. JF - Physical Geography AU - Larsen, M C AD - U.S. Geological Survey, 651 Federal Drive, Guaynabo, Puerto Rico 00965-5703, mclarsen@usgs.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 494 EP - 521 VL - 21 IS - 6 SN - 0272-3646, 0272-3646 KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts KW - SW 0835:Streamflow and runoff KW - M2 556.12:Precipitation (556.12) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18564154?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physical+Geography&rft.atitle=Analysis+of+20th+century+rainfall+and+streamflow+to+characterize+drought+and+water+resources+in+Puerto+Rico&rft.au=Larsen%2C+M+C&rft.aulast=Larsen&rft.aufirst=M&rft.date=2000-12-01&rft.volume=21&rft.issue=6&rft.spage=494&rft.isbn=&rft.btitle=&rft.title=Physical+Geography&rft.issn=02723646&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - CONF T1 - Photo-Enhanced Toxicity in Amphibians: Synergistic Interactions of Solar Ultraviolet Radiation and Aquatic Contaminants AN - 18374221; 5347667 AB - Amphibians experience a broad of multiple environmental stressors that occur in natural systems. However, the impact of combinations of these stressors on amphibians are rarely examined. The effect of two stressors on amphibians, solar ultraviolet radiation (SUV) and environmental contamination, was investigated. To examine the interactive effects of SUV and environmental contaminants, Hyla versicolor and Rana sphenocephala were exposed in the laboratory to a carbamate insecticide and the water soluble fraction of a weathered petroleum in combination with various intensities of simulated solar radiation (SSR). The contaminants were tested at environmentally relevant concentrations. Synergistic interactions between SSR and these substances were observed during the exposures. Mortality of H. versicolor exposed to 2.51 mg/l carbaryl increased from 5% under control SSR conditions to 100% under low SSR irradiance (4 mu W/cm super(2)). Exposure to a 10% solution of a water soluble fraction of petroleum under control SSR conditions was not lethal to R. sphenocephala; however under high SSR irradiance (17 mu W/cm super(2)) a 5% water soluble fraction of petroleum was lethal. Relatively limited SSR irradiance is necessary to initiate photoenhanced toxicity, thus a range of amphibian habitats may be impacted by SUV. These studies indicate the importance of evaluating the interactive influence of environmental stressors present in amphibian habitats. JF - Journal of the Iowa Academy of Science AU - Little, EE AU - Calfee, R AU - Cleveland, L AU - Skinker, R AU - Zaga-Parkhurst, A AU - Barron, M G Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 67 EP - 71 PB - Iowa Academy of Sciences VL - 107 IS - 3-4 KW - Amphibians KW - Gray treefrog KW - synergism KW - Water Resources Abstracts; Toxicology Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality KW - Freshwater KW - X 24210:Radiation & radioactive materials KW - SW 3030:Effects of pollution KW - Q5 01504:Effects on organisms KW - Q1 01326:Physiology, biochemistry, biophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18374221?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Iowa+Academy+of+Science&rft.atitle=Photo-Enhanced+Toxicity+in+Amphibians%3A+Synergistic+Interactions+of+Solar+Ultraviolet+Radiation+and+Aquatic+Contaminants&rft.au=Little%2C+EE%3BCalfee%2C+R%3BCleveland%2C+L%3BSkinker%2C+R%3BZaga-Parkhurst%2C+A%3BBarron%2C+M+G&rft.aulast=Little&rft.aufirst=EE&rft.date=2000-12-01&rft.volume=107&rft.issue=3-4&rft.spage=67&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Iowa+Academy+of+Science&rft.issn=08968381&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - CONF T1 - Effects of Altosid and Abate-4E on Deformities and Survival in Southern Leopard Frogs Under Semi-Natural Conditions AN - 18372344; 5347671 JF - Journal of the Iowa Academy of Science AU - Sparling, D W Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 90 EP - 91 PB - Iowa Academy of Sciences VL - 107 IS - 3-4 KW - Northern leopard frog KW - Toxicology Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality KW - Freshwater KW - X 24134:Pathology KW - Q5 01504:Effects on organisms KW - Q1 01324:Reproduction and development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18372344?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Iowa+Academy+of+Science&rft.atitle=Effects+of+Altosid+and+Abate-4E+on+Deformities+and+Survival+in+Southern+Leopard+Frogs+Under+Semi-Natural+Conditions&rft.au=Sparling%2C+D+W&rft.aulast=Sparling&rft.aufirst=D&rft.date=2000-12-01&rft.volume=107&rft.issue=3-4&rft.spage=90&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Iowa+Academy+of+Science&rft.issn=08968381&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Evapotranspiration from a bulrush-dominated wetland in the Klamath Basin, Oregon AN - 18154585; 4859302 AB - Growing-season evapotranspiration and surface energy and water balances were investigated for an extensive, bulrush-dominated wetland in the Upper Klamath National Wildlife Refuge of south-central Oregon, a semi-arid region with competing demands for scarce water resources. Turbulent fluxes of sensible and latent heat were measured by eddy covariance for 1.2 to 1.9 days during each of four site visits during late-May to mid-October 1997. Mean daytime latent heat flux and the Bowen ratio ranged from 148 to 178 W m super(-2) and from 0.38 to 0.51, respectively, during late May, mid-July, and late August site visits. By mid-October, when the plant canopy had senesced, daytime latent heat flux and the Bowen ratio averaged 46 W m super(-2) and 2.8, respectively. An hourly Penman-Monteith (PM) model that was fitted to the surface-flux data provided values for the surface resistance to water-vapor diffusion that ranged from 78 s m super(-1) during late August to 206 s m super(-1) during mid-October. Similarly, a Priestley-Taylor (PT) model provided values for the PT multiplier ( alpha ) that ranged from 0.96 during late August to 0.37 during mid-October. The PM and PT models predicted evapotranspiration totals of 560 and 480 mm, respectively, for May 28 to October 12, 1997. JF - Journal of the American Water Resources Association AU - Bidlake, W R AD - U.S. Geological Survey, Water Resources Division, 1201 Pacific Avenue, Suite 600, Tacoma, WA 98402, USA, wbidlake@usgs.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 1309 VL - 36 IS - 6 SN - 1093-474X, 1093-474X KW - USA, Oregon KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - Bowen Ratio KW - Evaporation KW - Water vapour KW - Hydrologic Budget KW - Water resources KW - Freshwater KW - Latent heat transfer KW - Latent Heat KW - Semiarid Lands KW - Energy (see also Power) KW - Hydrology KW - Wetlands KW - Bowen ratio KW - USA, Oregon, Klamath R. KW - River basins KW - Evapotranspiration KW - Air-water interface KW - Transpiration KW - Hydrologic cycle KW - Water balance KW - Energy balance KW - Heat KW - Energy KW - Water Resources KW - AQ 00001:Water Resources and Supplies KW - SW 0830:Evaporation and transpiration KW - Q2 09163:Air-water boundary layer UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18154585?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Evapotranspiration+from+a+bulrush-dominated+wetland+in+the+Klamath+Basin%2C+Oregon&rft.au=Bidlake%2C+W+R&rft.aulast=Bidlake&rft.aufirst=W&rft.date=2000-12-01&rft.volume=36&rft.issue=6&rft.spage=1309&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Evaporation; Water vapour; Water resources; Evapotranspiration; River basins; Hydrologic cycle; Transpiration; Latent heat transfer; Air-water interface; Water balance; Energy balance; Wetlands; Bowen ratio; Energy (see also Power); Heat; Hydrology; Semiarid Lands; Bowen Ratio; Energy; Hydrologic Budget; Latent Heat; Water Resources; USA, Oregon, Klamath R.; Freshwater ER - TY - JOUR T1 - Effects of methyl testosterone exposure on sexual differentiation in medaka, Oryzias latipes AN - 18069626; 4871583 AB - Studies were conducted to characterize effects of a known androgen on sexual differentiation and development of medaka, Oryzias latipes (d-rR strain), at two life stages. Embryos were injected with graded doses of methyl testosterone (MT) prior to epiboly. The occurrence of sex-reversal, and the gonadosomatic index (GSI) were evaluated in adults. Primary germ cells were counted and gonad volumes calculated for larvae to determine if sex-reversal could be detected at an early life stage. Sex-reversal of genetic females to phenotypic males was observed at both life stages. The GSI for phenotypic females was greater than for phenotypic males, while the GSI in XX males was similar to XY males. MT appeared to reduce the GSI of XX females exposed to MT but not sex-reversed. Our results indicate that embryonic exposure to androgens influences sexual development in medaka. Utilizing the d-rR strain of medaka allows detection of an effect as early as 2 weeks after chemical exposure making this a useful tool to screen chemicals for effects on sexual differentiation. JF - Marine Environmental Research AU - Papoulias, D M AU - Noltie, D B AU - Tillitt, DE AD - Columbia Environmental Research Center, US Geological Survey, 4200 New Haven Road, Columbia, MO 65201, USA, diana_papoulias@usgs.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 181 EP - 184 VL - 50 IS - 1-5 SN - 0141-1136, 0141-1136 KW - Androgens KW - Medaka KW - Methyltestosterone KW - Oryzias latipes KW - methyl testosterone KW - methyltestosterone KW - sex differences KW - sex reversal KW - Water Resources Abstracts; Toxicology Abstracts; Pollution Abstracts; Oceanic Abstracts KW - Chemicals KW - Marine KW - Sex reversal KW - Brackish KW - Pollution effects KW - Freshwater KW - Hormones KW - Toxicity tests KW - Chemical compounds KW - Sex hormones KW - Sex determination KW - Pisces KW - Genetics KW - Fish physiology KW - Analytical techniques KW - Marine organisms KW - Embryos KW - Toxicity testing KW - Steroids KW - O 4095:Instruments/Methods KW - X 24240:Miscellaneous KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18069626?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Environmental+Research&rft.atitle=Effects+of+methyl+testosterone+exposure+on+sexual+differentiation+in+medaka%2C+Oryzias+latipes&rft.au=Papoulias%2C+D+M%3BNoltie%2C+D+B%3BTillitt%2C+DE&rft.aulast=Papoulias&rft.aufirst=D&rft.date=2000-12-01&rft.volume=50&rft.issue=1-5&rft.spage=181&rft.isbn=&rft.btitle=&rft.title=Marine+Environmental+Research&rft.issn=01411136&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special Issue: Pollutant Responses in Marine Organisms (PRIMO 10). N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Sex reversal; Fish physiology; Analytical techniques; Pollution effects; Embryos; Chemical compounds; Toxicity tests; Steroids; Sex determination; Sex hormones; Androgens; Chemicals; Pisces; Genetics; Marine organisms; Toxicity testing; Hormones; Marine; Brackish; Freshwater ER - TY - JOUR T1 - Etiology and pathogenesis of skin ulcers in menhaden, Brevoortia tyrannis: does Pfiesteria piscicida play a role? AN - 18068934; 4871739 AB - The toxic dinoflagellate, Pfiesteria piscicida, is widely blamed for adverse human health effects, acute fish kills and skin lesion events in fishes, particularly menhaden, Brevoortia tyrannis, inhabiting coastal waters from Delaware to North Carolina, USA. In response, we initiated studies to clarify the etiology and pathogenesis of presumed 'Pfiesteria-specific' menhaden skin lesions. Histopathologically, all lesions (> 150 fish examined) were associated with a highly invasive and pathogenic fungus eliciting severe tissue necrosis and intense granulomatous inflammation. Severity and extent of the host response indicates that ulcers were at least 1 week old or older. Maryland and Virginia currently use menhaden ulcers as one of several indicators of local Pfiesteria activity. However, their chronic nature, advanced age, and consistent fungal involvement suggest that their use for this purpose may not be valid. We recently isolated an Aphanomyces sp. from the menhaden lesions which by appearance in culture, temperature growth curves, pathogenicity studies in snakehead and positive immunohistochemical staining with polyclonal antibodies suggest the infectious agent is A. invadans (cause of epizootic ulcerative syndrome in Asia, Japan and Australia) or a very closely related species. Ongoing research will address pathogenicity of the fungus in menhaden, genetic comparisons of isolates, and the role of environmental stressors, including P. piscicida, in initiation of the infection. JF - Marine Environmental Research AU - Blazer, V AU - Vogelbein, W K AU - Densmore, C AU - Kator, H AU - Zwerner, D AU - Lilley, J AD - National Fish Health Research Laboratory, Leetown Science Center, USGS, Kearneysville, WV 25430, USA Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 487 EP - 488 VL - 50 IS - 1-5 SN - 0141-1136, 0141-1136 KW - Aphanomyces invadans KW - Atlantic menhaden KW - Brevoortia tyrannus KW - Pfiesteria piscicida KW - USA, Eastern KW - Pollution Abstracts; Oceanic Abstracts; Water Resources Abstracts KW - Aquatic organisms KW - Algal blooms KW - Aphanomyces KW - Histopathology KW - Phytoplankton KW - Poisonous organisms KW - Aetiology KW - Pisces KW - Fish kill KW - ANW, USA KW - Dinoflagellates KW - Lesions KW - Diseases KW - Brackishwater fish KW - Fungal diseases KW - Etiology KW - Skin KW - Fungi KW - Estuaries KW - Brackish KW - Coastal waters KW - Errors KW - Analytical techniques KW - Indicator species KW - O 1070:Ecology/Community Studies KW - P 1000:MARINE POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18068934?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Environmental+Research&rft.atitle=Etiology+and+pathogenesis+of+skin+ulcers+in+menhaden%2C+Brevoortia+tyrannis%3A+does+Pfiesteria+piscicida+play+a+role%3F&rft.au=Blazer%2C+V%3BVogelbein%2C+W+K%3BDensmore%2C+C%3BKator%2C+H%3BZwerner%2C+D%3BLilley%2C+J&rft.aulast=Blazer&rft.aufirst=V&rft.date=2000-12-01&rft.volume=50&rft.issue=1-5&rft.spage=487&rft.isbn=&rft.btitle=&rft.title=Marine+Environmental+Research&rft.issn=01411136&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special Issue: Pollutant Responses in Marine Organisms (PRIMO 10). N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Algal blooms; Estuaries; Analytical techniques; Phytoplankton; Lesions; Histopathology; Poisonous organisms; Errors; Fungal diseases; Brackishwater fish; Aetiology; Indicator species; Pisces; Aquatic organisms; Fish kill; Etiology; Skin; Fungi; Dinoflagellates; Diseases; Coastal waters; Aphanomyces; ANW, USA; Brackish ER - TY - JOUR T1 - Estuaries of the Northeastern United States: Habitat and Land Use Signatures AN - 18068492; 4872737 AB - Geographic signatures are physical, chemical, biotic, and human-induced characteristics or processes that help define similar or unique features of estuaries along latitudinal or geographic gradients. Geomorphologically, estuaries of the northeastern U.S., from the Hudson River estuary and northward along the Gulf of Maine shoreline, are highly diverse because of a complex bedrock geology and glacial history. Back-barrier estuaries and lagoons occur within the northeast region, but the domiant type is the drowned-river valley, often with rocky shores. Tidal range and mean depth of northeast estuaries are generally greater when compared to estuaries of the more southern U.S. Atlantic coast and Gulf of Mexico. Because of small estuarine drainage basins, low riverine flows, a bedrock substrate, and dense forest cover, sediment loads in northeast estuaries are generally quite low and water clarity is high. Tidal marshes, seagrass meadows, intertidal mudflats, and rocky shores represent major habitat types that fringe northeast estuaries, supporting commercially-important fauna, forage nekton and benthos, and coastal bird communities, while also serving as links between deeper estuarine waters and habitats through detritus-based pathways. Regarding land use and water quality trends, portions of the northeast have a history of over a century of intense urbanization as reflected in increased total nitrogen and total phosphorus loadings to estuaries, with wastewater treatment facilities and atmospheric deposition being major sources. Agricultural inputs are relatively minor throughout the northeast, with relative importance increasing for coastal plain estuaries. Identifying geographic signatures provides an objective means for comparing the structure, function, and processes of estuaries along latitudinal gradients. JF - Estuaries AU - Roman, C T AU - Jaworski, N AU - Short, F T AU - Findlay, S AU - Warren, R S AD - USGS Patuxent Wildlife Research Center, Graduate School of Oceanography, University of Rhode Island, Narragansett, Rhode Island 02882, USA, charles_roman@usgs.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 743 EP - 764 VL - 23 IS - 6 SN - 0160-8347, 0160-8347 KW - USA, Hudson R. KW - Pollution Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Aqualine Abstracts; Oceanic Abstracts KW - Land Use KW - Urbanization KW - Nutrient loading KW - Phosphorus KW - Lagooning KW - Water quality KW - Lagoons KW - Wastewater treatment KW - USA, Northeast KW - Habitats KW - Geomorphology KW - Tidal Marshes KW - Catchment areas KW - Geology KW - Geography KW - Detritus KW - Pollution KW - Urban areas KW - Catchment Areas KW - Physicochemical properties KW - Estuaries KW - Water Quality KW - Marshes KW - Habitat KW - Land use KW - Sediments KW - Morphology KW - ANW, USA, Northeast KW - Wastewater Treatment KW - Water quality (Natural waters) KW - Nitrogen KW - AQ 00001:Water Resources and Supplies KW - O 3010:Geology and Geophysics KW - P 1000:MARINE POLLUTION KW - Q5 08501:General KW - Q2 09261:General KW - SW 0890:Estuaries UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18068492?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Estuaries&rft.atitle=Estuaries+of+the+Northeastern+United+States%3A+Habitat+and+Land+Use+Signatures&rft.au=Roman%2C+C+T%3BJaworski%2C+N%3BShort%2C+F+T%3BFindlay%2C+S%3BWarren%2C+R+S&rft.aulast=Roman&rft.aufirst=C&rft.date=2000-12-01&rft.volume=23&rft.issue=6&rft.spage=743&rft.isbn=&rft.btitle=&rft.title=Estuaries&rft.issn=01608347&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Geomorphology; Estuaries; Geology; Habitat; Sediments; Land use; Pollution; Urbanization; Nutrient loading; Morphology; Physicochemical properties; Geography; Water quality; Phosphorus; Marshes; Lagooning; Wastewater treatment; Catchment areas; Detritus; Water quality (Natural waters); Urban areas; Nitrogen; Land Use; Catchment Areas; Water Quality; Lagoons; Habitats; Tidal Marshes; Wastewater Treatment; ANW, USA, Northeast; USA, Northeast ER - TY - JOUR T1 - Occurrence of Nitrous Oxide in the Central High Plains Aquifer, 1999 AN - 18026831; 4870577 AB - Nitrogen-enriched groundwater has been proposed as an important anthropogenic source of atmospheric nitrous oxide (N sub(2)O), yet few measurements of N sub(2)O in large aquifer systems have been made. Concentrations of N sub(2)O in water samples collected from the 124 000 km super(2) central High Plains aquifer in 1999 ranged from < 1 to 940 nM, with a median concentration of 29 nM (n = 123). Eighty percent of the N sub(2)O concentrations exceeded the aqueous concentration expected from equilibration with atmospheric N sub(2)O. Measurements of N sub(2)O, NO sub(3) super(-), and super(3)H in unsaturated-zone sediments, recently recharged groundwater, and older groundwater indicate that concentrations of N sub(2)O in groundwater increased over time and will likely continue to increase in the future as N-enriched water recharges the aquifer. Large concentrations of O sub(2) and NO sub(3) super(-) and small concentrations of NH sub(4) super(+) and dissolved organic carbon in the aquifer indicate that N sub(2)O in the central High Plains aquifer was produced primarily by nitrification. Calculations indicate that the flux of N sub(2)O from the central High Plains aquifer to the atmosphere from well pumping and groundwater discharge to streams was not a significant source of atmospheric N sub(2)O. JF - Environmental Science & Technology AU - McMahon, P B AU - Bruce, B W AU - Becker, M F AU - Pope, L M AU - Dennehy, K F AD - U.S. Geological Survey, Denver Federal Center, MS 415, Denver, CO 80225, USA, pmcmahon@usgs.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 4873 EP - 4877 VL - 34 IS - 23 SN - 0013-936X, 0013-936X KW - USA KW - Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Atmospheric Chemistry KW - Recharge KW - Aquifers KW - Groundwater Discharge KW - Water sampling KW - Air-water Interfaces KW - Geochemistry KW - Switzerland KW - Nitrogen Compounds KW - Nitrification KW - Nitrous oxide KW - Groundwater (see also Aquifers) KW - Air-water interactions KW - Nitrogen compounds KW - Groundwater KW - Groundwater Recharge KW - AQ 00001:Water Resources and Supplies KW - SW 0880:Chemical processes KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18026831?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Occurrence+of+Nitrous+Oxide+in+the+Central+High+Plains+Aquifer%2C+1999&rft.au=McMahon%2C+P+B%3BBruce%2C+B+W%3BBecker%2C+M+F%3BPope%2C+L+M%3BDennehy%2C+K+F&rft.aulast=McMahon&rft.aufirst=P&rft.date=2000-12-01&rft.volume=34&rft.issue=23&rft.spage=4873&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Aquifers; Water sampling; Nitrous oxide; Air-water interactions; Groundwater; Recharge; Nitrification; Geochemistry; Groundwater (see also Aquifers); Nitrogen compounds; Atmospheric Chemistry; Nitrogen Compounds; Groundwater Discharge; Air-water Interfaces; Groundwater Recharge; Switzerland ER - TY - JOUR T1 - Isolation and characterization of microsatellite DNA markers in the Florida manatee (Trichechus manatus latirostris) and their application in selected sirenian species AN - 18015691; 4866284 JF - Molecular Ecology AU - Garcia-Rodriguez, IA AU - Moraga-Amador, D AU - Farmerie, W AU - Mcguire, P AU - King, L T AD - United States Geological Survey, Biological Resources Division, Sirenia Project, Gainesville, FL 32601, USA Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 2161 EP - 2163 PB - Blackwell Science Ltd VL - 9 IS - 12 SN - 0962-1083, 0962-1083 KW - Dugongs KW - Manatee KW - Manatees KW - Sea cows KW - West Indian manatee KW - microsatellites KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources; Genetics Abstracts KW - Genetics KW - Sirenia KW - Genes KW - Trichechus manatus latirostris KW - Microsatellites KW - DNA KW - Ecological genetics KW - Loci KW - G 07381:General KW - D 04672:Mammals KW - Q1 08375:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18015691?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Molecular+Ecology&rft.atitle=Isolation+and+characterization+of+microsatellite+DNA+markers+in+the+Florida+manatee+%28Trichechus+manatus+latirostris%29+and+their+application+in+selected+sirenian+species&rft.au=Garcia-Rodriguez%2C+IA%3BMoraga-Amador%2C+D%3BFarmerie%2C+W%3BMcguire%2C+P%3BKing%2C+L+T&rft.aulast=Garcia-Rodriguez&rft.aufirst=IA&rft.date=2000-12-01&rft.volume=9&rft.issue=12&rft.spage=2161&rft.isbn=&rft.btitle=&rft.title=Molecular+Ecology&rft.issn=09621083&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Genetics; Genes; DNA; Microsatellites; Ecological genetics; Loci; Sirenia; Trichechus manatus latirostris ER - TY - JOUR T1 - Methyl-Mercury Degradation Pathways: A Comparison among Three Mercury-Impacted Ecosystems AN - 18015115; 4870580 AB - We examined microbial methylmercury (MeHg) degradation in sediment of the Florida Everglades, Carson River (NV), and San Carlos Creek (CA), three freshwater environments that differ in the extent and type of mercury contamination and sediment biogeochemistry. Degradation rate constant (k sub(deg)) values increased with total mercury (Hg sub(t)) contamination both among and within ecosystems. The highest k sub(deg)'S (2.8-5.8 d super(-1)) were observed in San Carlos Creek, at acid mine drainage impacted sites immediately downstream of the former New Idria mercury mine, where Hg sub(t) ranged from 4.5 to 21.3 ppm (dry wt). A reductive degradation pathway (presumably mer-detoxification) dominated degradation at these sites, as indicated by the nearly exclusive production of super(14)CH sub(4) from super(14)C-MeHg, under both aerobic and anaerobic conditions. At the upstream control site, and in the less contaminated ecosystems (e.g. the Everglades), k sub(deg)'S were low ( less than or equal to 0.2 d super(-1)) and oxidative demethylation (OD) dominated degradation, as evident from super(14)CO sub(2) production. k sub(deg) increased with microbial CH sub(4) production, organic content, and reduced sulfur in the Carson River system and increased with decreasing pH in San Carlos Creek. OD associated CO sub(2) production increased with pore-water SO sub(4) super(2-) in Everglades samples but was not attributable to anaerobic methane oxidation, as has been previously proposed. This ecosystem comparison indicates that severely contaminated sediments tend to have microbial populations that actively degrade MeHg via mer-detoxification, whereas OD occurs in heavily contaminated sediments as well but dominates in those less contaminated. JF - Environmental Science & Technology AU - Marvin-Dipasquale, M AU - Agee, J AU - McGowan, C AU - Oremland, R S AU - Thomas, M AU - Krabbenhoft, D AU - Gilmour, C C AD - U.S. Geological Survey, Water Resources Division/MS 480, 345 Middlefield Road, Menlo Park, CA 94025, USA, mmarvin@usgs.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 4908 EP - 4916 VL - 34 IS - 23 SN - 0013-936X, 0013-936X KW - Pollution Abstracts KW - Sediment pollution KW - Methylmercury KW - Biodegradation KW - USA, Florida, Everglades KW - Mine drainage KW - USA, Nevada, Carson R. KW - USA, California, San Carlos Creek KW - Mercury KW - Freshwater pollution KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18015115?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Methyl-Mercury+Degradation+Pathways%3A+A+Comparison+among+Three+Mercury-Impacted+Ecosystems&rft.au=Marvin-Dipasquale%2C+M%3BAgee%2C+J%3BMcGowan%2C+C%3BOremland%2C+R+S%3BThomas%2C+M%3BKrabbenhoft%2C+D%3BGilmour%2C+C+C&rft.aulast=Marvin-Dipasquale&rft.aufirst=M&rft.date=2000-12-01&rft.volume=34&rft.issue=23&rft.spage=4908&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - USA, Florida, Everglades; USA, Nevada, Carson R.; USA, California, San Carlos Creek; Methylmercury; Biodegradation; Sediment pollution; Freshwater pollution; Mine drainage; Mercury ER - TY - JOUR T1 - Reproductive ecology of the Maui parrotbill AN - 17840910; 4876952 AB - The endangered Maui Parrotbill (Pseudonestor xanthophrys) is an excavating, insectivorous Hawaiian honeycreeper endemic to the high elevation rain forests of east Maui, Hawaii. From March 1994 to June 1997, we studied various aspects of their breeding ecology. We color-banded 18 individuals, located and monitored 9 active nests, and took behavioral data during 440 hrs of nest observation. Both members of a pair maintained a year-round, all-purpose territory that included nest sites and food resources. Maui Parrotbill were monogamous within and between years; we found no evidence of polyandry, polygyny, or helpers at the nest. Nests were cup-shaped, composed mainly of lichen interlaced with small twigs, and positioned in the outer canopy forks of mature ohia (Metrosideros polymorpha) trees. Modal clutch size was one. Females performed most nest construction and all incubation and brooding; males provisioned females and assisted in feeding nestlings after their fourth day. Fledglings depended on parental care for 5-8 months, during which their bill strength increased and foraging skills improved. We calculated the overall nest success rate by the Mayfield Method as 0.42 for the 1995/1996 and 1996/1997 breeding seasons combined. Nest failure and fledgling disappearance coincided with events of high rainfall. Their breeding ecology most closely resembled the Akiapolaau (Hemignathus munroi), another excavating, insectivorous Hawaiian honeycreeper found on Hawaii Island. As with the Akiapolaau, the threat of extinction is persistent and results from both the constraints of inherent life history traits and artificial ecological changes. We advocate the protection and expansion of habitable forest areas and an ongoing program to monitor and mitigate the effects of invasive species. JF - Wilson Bulletin AU - Simon, J C AU - Pratt, T K AU - Berlin, KE AU - Kowalsky, J R AD - USGS Pacific Island Ecosystems Research Center. P.O. Box 44, Hawaii National Park, HI 96718-0044, USA, Thane_Pratt@usgs.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 482 EP - 490 VL - 112 IS - 4 SN - 0043-5643, 0043-5643 KW - Maui parrotbill KW - USA, Hawaii KW - Animal Behavior Abstracts; Ecology Abstracts KW - Breeding KW - Pseudonestor xanthophrys KW - Reproduction KW - Reproductive behavior KW - Nests KW - D 04671:Birds KW - Y 25426:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17840910?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wilson+Bulletin&rft.atitle=Reproductive+ecology+of+the+Maui+parrotbill&rft.au=Simon%2C+J+C%3BPratt%2C+T+K%3BBerlin%2C+KE%3BKowalsky%2C+J+R&rft.aulast=Simon&rft.aufirst=J&rft.date=2000-12-01&rft.volume=112&rft.issue=4&rft.spage=482&rft.isbn=&rft.btitle=&rft.title=Wilson+Bulletin&rft.issn=00435643&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pseudonestor xanthophrys; Reproductive behavior; Reproduction; Breeding; Nests ER - TY - JOUR T1 - An Evaluation of Restoration Efforts in Fishless Lakes Stocked with Exotic Trout AN - 17836330; 4865861 AB - Detrimental effects of introduced fishes on native amphibian populations have prompted removal of introduced cutthroat (Oncorhynchus clarki), rainbow (Oncorhynchus mykiss), and brook trout (Salvelinus fontinalis) from naturally fishless lakes at Mt. Rainier National Park, Washington ( U. S. A. ). Using paleolimnological indicators (diatoms, invertebrates, and sediment characteristics) in eight 480-year-old sediment cores from eight lakes, we (1) derived estimates of baseline environmental conditions and natural variation, (2) assessed the effects of stocking naturally fishless lakes, and (3) determined whether lakes returned to predisturbance conditions after fish removal (restoration). Diatom floras were relatively stable between 315 and 90 years before present in all lakes; we used this time period to define lake-specific "baseline" conditions. Dissimilarity analyses of diatoms revealed sustained, dramatic changes in diatom floras that occurred approximately 80 years ago (when fish were introduced) in four of five stocked lakes, whereas the diatom floras in two unstocked lakes had not changed significantly in the last 315 years. Diatoms were not preserved in an eighth lake. State changes also occurred in two lakes over 200 years before European settlement of the Pacific Northwest. Preserved invertebrate densities fluctuated dramatically over time in all cores, providing a poor reference for assessing the effects of fishes. Nevertheless, fish-invertebrate interactions have been demonstrated in other paleolimnological studies and may be useful for lower-elevation or more productive lakes. Because diatom communities have not returned to predisturbance assemblages in restored lakes, even 20-30 years after fish removal, we conclude that Mt. Rainier lakes were not successfully restored by the removal of fishes. JF - Conservation Biology AU - Drake, C D AU - Naiman, J R AD - Western Fisheries Research Center, U.S. Geological Survey, Seattle, WA 98115, USA, deanne_drake@usgs.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 1807 EP - 1820 PB - Blackwell Science Ltd VL - 14 IS - 6 SN - 0888-8892, 0888-8892 KW - Amphibians KW - Brook trout KW - Cutthroat trout KW - Rainbow trout KW - USA, Washington KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality KW - Salvelinus fontinalis KW - Stocking (organisms) KW - Palaeoecology KW - Bacillariophyceae KW - Man-induced effects KW - Oncorhynchus mykiss KW - Lake deposits KW - Freshwater KW - Freshwater fish KW - Restoration KW - Amphibia KW - Lakes KW - Stocking KW - Nature conservation KW - Oncorhynchus clarki KW - Environmental restoration KW - USA, Washington, Mt. Rainier Natl. Park KW - Introduced species KW - Q1 08463:Habitat community studies KW - Q5 08522:Protective measures and control KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17836330?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Conservation+Biology&rft.atitle=An+Evaluation+of+Restoration+Efforts+in+Fishless+Lakes+Stocked+with+Exotic+Trout&rft.au=Drake%2C+C+D%3BNaiman%2C+J+R&rft.aulast=Drake&rft.aufirst=C&rft.date=2000-12-01&rft.volume=14&rft.issue=6&rft.spage=1807&rft.isbn=&rft.btitle=&rft.title=Conservation+Biology&rft.issn=08888892&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Palaeoecology; Stocking (organisms); Nature conservation; Man-induced effects; Lake deposits; Freshwater fish; Introduced species; Restoration; Lakes; Stocking; Environmental restoration; Amphibia; Salvelinus fontinalis; Bacillariophyceae; Oncorhynchus clarki; Oncorhynchus mykiss; USA, Washington, Mt. Rainier Natl. Park; Freshwater ER - TY - JOUR T1 - Application of the New Keystone-Species Concept to Prairie Dogs: How Well Does It Work? AN - 17836295; 4865851 AB - It has been suggested that the keystone-species concept should be dropped from ecology and conservation, primarily because the concept is poorly defined. This prompted to refine the definition: keystone species have large effects on community structure or ecosystem function (i. e. , high overall importance), and this effect should be large relative to abundance (i. e. , high community importance). Using prairie dogs (Cynomys spp. ) as an example, I review operational and conceptual difficulties encountered in applying this definition. As applied to prairie dogs, the implicit assumption that overall importance is a linear function of abundance is invalid. In addition, community importance is sensitive to abundance levels, the definition of community, and sampling scale. These problems arise largely from the equation for community importance, as used in conjunction with removal experiments at single abundance levels. I suggest that we shift from the current emphasis on the dualism between keystone and nonkeystone species and instead examine how overall and community importance vary (1) with abundance, (2) across spatial and temporal scales, and (3) under diverse ecological conditions. In addition, I propose that a third criterion be incorporated into the definition: keystone species perform roles not performed by other species or processes. Examination of how these factors vary among populations of keystone species should help identify the factors contributing to, or limiting, keystone-level functions, thereby increasing the usefulness of the keystone-species concept in ecology and conservation. Although the quantitative framework of Power et al. falls short of being fully operational, my conceptual guidelines may improve the usefulness of the keystone-species concept. Careful attention to the factors that limit keystone function will help avoid misplaced emphasis on keystone species at the expense of other species. JF - Conservation Biology AU - Kotliar, B N AD - U.S. Geological Survey, Biological Resources Division, Midcontinent Ecological Science Center,4512 McMurry Avenue, Fort Collins, CO 80525-3400, U.S.A., tasha_kotliar@usgs.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 1715 EP - 1721 PB - Blackwell Science Ltd VL - 14 IS - 6 SN - 0888-8892, 0888-8892 KW - Prairie dogs KW - Ecology Abstracts KW - Keystone species KW - Community structure KW - Conservation KW - Cynomys KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17836295?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Conservation+Biology&rft.atitle=Application+of+the+New+Keystone-Species+Concept+to+Prairie+Dogs%3A+How+Well+Does+It+Work%3F&rft.au=Kotliar%2C+B+N&rft.aulast=Kotliar&rft.aufirst=B&rft.date=2000-12-01&rft.volume=14&rft.issue=6&rft.spage=1715&rft.isbn=&rft.btitle=&rft.title=Conservation+Biology&rft.issn=08888892&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Cynomys; Keystone species; Conservation; Community structure ER - TY - JOUR T1 - Geographic patterns and dynamics of Alaskan climate interpolated from a sparse station record AN - 17834514; 4866492 AB - Data from a sparse network of climate stations in Alaska were interpolated to provide 1-km resolution maps of mean monthly temperature and precipitation--variables that are required at high spatial resolution for input into regional models of ecological processes and resource management. The interpolation model is based on thin-plate smoothing splines, which uses the spatial data along with a digital elevation model to incorporate local topography. The model provides maps that are consistent with regional climatology and with patterns recognized by experienced weather forecasters. The broad patterns of Alaskan climate are well represented and include latitudinal and altitudinal trends in temperature and precipitation and gradients in continentality. Variations within these broad patterns reflect both the weakening and reduction in frequency of low-pressure centres in their eastward movement across southern Alaska during the summer, and the shift of the storm tracks into central and northern Alaska in late summer. Not surprisingly, apparent artifacts of the interpolated climate occur primarily in regions with few or no stations. The interpolation model did not accurately represent low-level winter temperature inversions that occur within large valleys and basins. Along with well-recognized climate patterns, the model captures local topographic effects that would not be depicted using standard interpolation techniques. This suggests that similar procedures could be used to generate high- resolution maps for other high-latitude regions with a sparse density of data. JF - Global Change Biology AU - Fleming, D M AU - Chapin, S F AU - Cramer, W AU - Hufford, L G AU - Serreze, C M AD - USGS/EROS Field Office, 4230 University Drive, Anchorage, AK 99508-4664, USA, Institute of Arctic Biology, University of Alaska, Fairbanks, AK 99775, USA, Potsdam Institute for Climate Impact Research, Telegrafenberg, PO Box 601203, D-14412 Potsdam, Germany, National Weather Service, 222 W 7th Ave. Anchorage, AK 99513, USA, Cooperative Institute for Research in Environmental Sciences (CIRES), Campus Box 449, University of Colorado, Boulder, CO 80309-0216, USA Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 49 EP - 58 PB - Blackwell Science Ltd VL - 6 SN - 1354-1013, 1354-1013 KW - USA, Alaska KW - Ecology Abstracts KW - Precipitation KW - Climatic conditions KW - Air temperature KW - Models KW - D 04003:Modeling, mathematics, computer applications KW - D 04500:Atmosphere UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17834514?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Global+Change+Biology&rft.atitle=Geographic+patterns+and+dynamics+of+Alaskan+climate+interpolated+from+a+sparse+station+record&rft.au=Fleming%2C+D+M%3BChapin%2C+S+F%3BCramer%2C+W%3BHufford%2C+L+G%3BSerreze%2C+C+M&rft.aulast=Fleming&rft.aufirst=D&rft.date=2000-12-01&rft.volume=6&rft.issue=&rft.spage=49&rft.isbn=&rft.btitle=&rft.title=Global+Change+Biology&rft.issn=13541013&rft_id=info:doi/10.1046%2Fj.1365-2486.2000.06008.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Climatic conditions; Air temperature; Precipitation; Models DO - http://dx.doi.org/10.1046/j.1365-2486.2000.06008.x ER - TY - JOUR T1 - A Test of a Habitat Evaluation Procedure for Rocky Mountain Bighorn Sheep AN - 17834331; 4866394 AB - Habitat analysis is an important component of animal population restoration. We tested a habitat evaluation procedure for Rocky Mountain bighorn sheep (Ovis canadensis canadensis) using a geographic information system (GIS). We applied the model to eight bighorn sheep translocation sites in Colorado and compared the model's habitat suitability assessments with translocation results. The model considered the habitat unsuitable for four failed translocations, and did not recognize suitable habitat for four successful translocations. We performed a sensitivity analysis to determine how individual parameters affected model suitability assessments. To improve the model's ability to distinguish between suitable and unsuitable habitat, we relaxed the suitability criteria for four parameters: barriers created by dense vegetation, barriers created by fences, buffer zones on human use areas, and horizontal visibility. The refined model can be useful to bighorn sheep restoration efforts by facilitating evaluation of large areas of potential habitat, but numerical thresholds for required amounts of suitable habitat must consider the scale of data used for analysis. JF - Restoration Ecology AU - Johnson, L T AU - Swift, MD AD - National Park Service, Rocky Mountain National Park, Estes Park, CO 80517, U.S.A. Department of Rangeland Ecosystem Science and Natural Resource Ecology Laboratory, Colorado State University,Fort Collins, CO 80523, U.S.A. Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 47 EP - 56 PB - Blackwell Science Ltd VL - 8 IS - 4 SN - 1061-2971, 1061-2971 KW - Bighorn sheep KW - Ecology Abstracts KW - Habitat availability KW - Ovis canadensis KW - Environmental restoration KW - Models KW - D 04715:Reclamation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17834331?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Restoration+Ecology&rft.atitle=A+Test+of+a+Habitat+Evaluation+Procedure+for+Rocky+Mountain+Bighorn+Sheep&rft.au=Johnson%2C+L+T%3BSwift%2C+MD&rft.aulast=Johnson&rft.aufirst=L&rft.date=2000-12-01&rft.volume=8&rft.issue=4&rft.spage=47&rft.isbn=&rft.btitle=&rft.title=Restoration+Ecology&rft.issn=10612971&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ovis canadensis; Habitat availability; Environmental restoration; Models ER - TY - JOUR T1 - Correlates to Colonizations of New Patches by Translocated Populations of Bighorn Sheep AN - 17833277; 4866397 AB - By 1950, bighorn sheep were extirpated from large areas of their range. Most extant populations of bighorn sheep (Ovis canadensis) in the Intermountain West consist of <100 individuals occurring in a fragmented distribution across the landscape. Dispersal and successful colonizations of unoccupied habitat patches has been rarely reported, and, in particular, translocated populations have been characterized by limited population growth and limited dispersal rates. Restoration of the species is greatly assisted by dispersal and successful colonization of new patches within a metapopulation structure versus the existing scenario of negligible dispersal and fragmented, small populations. We investigated the correlates for the rate of colonizations of 79 suitable, but unoccupied, patches by 31 translocated populations of bighorn sheep released into nearby patches of habitat. Population growth rates of bighorn sheep in the release patches were correlated to N of the founder group, and early contact with a second released population in a nearby release patch (logistic regression, p = 0. 08). Largest population size of all extant released populations in 1994 was correlated to potential N of the founder group, the number of different source populations represented in the founder, and early contact with a second released population (p = 0. 016). Dispersal rates were 100% higher in rams than ewes (p = 0. 001). Successful colonizations of unoccupied patches (n = 24 of 79 were colonized) were associated with rapid growth rates in the released population, years since release, larger area of suitable habitat in the release patch, larger population sizes, and a seasonal migratory tendency in the released population (p = 0. 05). Fewer water barriers, more open vegetation and more rugged, broken terrain in the intervening habitat were also associated with colonizations (p = <0. 05). We concluded that high dispersal rates and rapid reoccupation of large areas could occur if bighorn sheep are placed in large patches of habitat with few barriers to movements to other patches and with no domestic sheep present. Many restorations in the past that did not meet these criteria may have contributed to an insular population structure of bighorn sheep with limited observations of dispersal. JF - Restoration Ecology AU - Singer, J F AU - Moses, E M AU - Bellew, S AU - Sloan, W AD - U.S. Geological Survey , Natural Resources Ecology Laboratory, Colorado State University, Fort Collins, CO 80523-1189, U.S.A. National Park Service , Dinosaur National Monument, CO 81610, U.S.A. Canyonlands National Park , Moab, UT 83532, U.S.A. Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 66 EP - 74 PB - Blackwell Science Ltd VL - 8 IS - 4 SN - 1061-2971, 1061-2971 KW - Bighorn sheep KW - USA KW - Ecology Abstracts KW - Colonization KW - Ovis canadensis KW - Environmental restoration KW - Translocation KW - D 04715:Reclamation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17833277?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Restoration+Ecology&rft.atitle=Correlates+to+Colonizations+of+New+Patches+by+Translocated+Populations+of+Bighorn+Sheep&rft.au=Singer%2C+J+F%3BMoses%2C+E+M%3BBellew%2C+S%3BSloan%2C+W&rft.aulast=Singer&rft.aufirst=J&rft.date=2000-12-01&rft.volume=8&rft.issue=4&rft.spage=66&rft.isbn=&rft.btitle=&rft.title=Restoration+Ecology&rft.issn=10612971&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ovis canadensis; Environmental restoration; Translocation; Colonization ER - TY - JOUR T1 - Test of a Modified Habitat Suitability Model for Bighorn Sheep AN - 17832360; 4866393 AB - Translocation of bighorn sheep (Ovis canadensis) is time, labor, and cost intensive and, therefore, high levels of success are desirable. We tested a widely used habitat suitability model against translocation success and then modified it to include additional factors which improved its usefulness in predicting appropriate translocation sites. The modified Smith habitat suitability model for bighorn sheep was 64% accurate in predicting success or failure of 32 translocations of bighorn sheep into the Rocky Mountains, Colorado Plateau desert, and prairie-badlands of six states. We had sheep location data for 13 populations, and the modified habitat model predicted the areas used by bighorn sheep with greater than 90% accuracy in eight populations, greater than 55% accuracy in four populations, and less than 55% accuracy in one population. Translocations were more successful when sheep were placed into discrete habitat patches containing a high proportion of lambing period habitat (>10% of suitable habitat, p = 0. 05), where animals had a migratory tendency (p = 0. 02), no contact with domestic sheep (p = 0. 02), or greater distance to domestic sheep (>23 km, p = 0. 02). Rate of population growth was best predicted by area of lambing period habitat, potential area of winter range, and distance to domestic sheep. We retested the model using these refined criteria and the refined model then predicted success or failure of these 32 translocated populations with 82% accuracy. JF - Restoration Ecology AU - Zeigenfuss, CL AU - Singer, J F AU - Gudorf, A M AD - Biological Resources Division , U.S. Geological Survey, Mid-continent Ecological Science Center, 4512 McMurry Ave,Ft. Collins, CO 80525, U.S.A. National Park Service , Intermountain Region, 12795 W. Alameda Parkway, Lakewood, CO 80228, U.S.A. Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 38 EP - 46 PB - Blackwell Science Ltd VL - 8 IS - 4 SN - 1061-2971, 1061-2971 KW - Bighorn sheep KW - USA KW - Ecology Abstracts KW - Habitat availability KW - Ovis canadensis KW - Models KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17832360?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Restoration+Ecology&rft.atitle=Test+of+a+Modified+Habitat+Suitability+Model+for+Bighorn+Sheep&rft.au=Zeigenfuss%2C+CL%3BSinger%2C+J+F%3BGudorf%2C+A+M&rft.aulast=Zeigenfuss&rft.aufirst=CL&rft.date=2000-12-01&rft.volume=8&rft.issue=4&rft.spage=38&rft.isbn=&rft.btitle=&rft.title=Restoration+Ecology&rft.issn=10612971&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ovis canadensis; Habitat availability; Models ER - TY - JOUR T1 - Restoration of Bighorn Sheep Metapopulations in and Near Western National Parks AN - 17831483; 4866390 AB - Bighorn sheep (Ovis canadensis) once were ubiquitous in large areas, including lands now contained in the national parks of the Intermountain and Colorado Plateau regions of the United States. Due to catastrophic declines in the late 1800s and early 1900s, most extant populations now occur as small, isolated groups with a highly fragmented distribution. Three different subspecies of bighorn sheep were extirpated from 14 of 18 areas that are now managed by the National Park Service. We describe an eight-year plan to restore bighorn sheep to currently suitable historic habitats in the national parks within a six-state intermountain region of the western United States, 1991-1998. A seven-point program was recommended for each park unit that included: (1) survey the existing populations; (2) conduct a GIS-based habitat assessment to identify suitable habitat; (3) convene scientific advisory panels to review results of habitat assessment; (4) convene interagency panels to discuss metapopulation management and to plan the restoration(s); (5) draft interagency restoration and management plans; (6) conduct translocation(s); and (7) monitor the populations. We evaluated 38,781 km super(2) of area; 32% (12,329 km super(2)) was potential habitat for bighorn sheep. The scientific advisory panels and the GIS modeling recommended bighorn restoration on 73 sites within these areas. By 1996, 36 of these sites (2,647 km super(2) or 22% of the entire suitable area) were inhabited by bighorn sheep. By 1999, the translocated animals increased 25%, and restoration efforts will continue in many of the remaining sites. JF - Restoration Ecology AU - Singer, J F AU - Bleich, C V AU - Gudorf, A M AD - Biological Resources Division of U.S. Geological Survey, Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, CO 80523, U.S.A. California Department of Fish and Game , 407 W. Line St., Bishop, CA 93514, U.S.A., and Institute of Arctic Biology and Department of Biology and Wildlife, University of Alaska, Fairbanks, AK 99775, U.S.A. National Park Service , 12795 West Alameda Parkway, Lakewood, CO 80225, U.S.A. Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 14 EP - 24 PB - Blackwell Science Ltd VL - 8 IS - 4 SN - 1061-2971, 1061-2971 KW - Bighorn sheep KW - USA KW - Ecology Abstracts KW - Ovis canadensis KW - Environmental restoration KW - Metapopulations KW - D 04715:Reclamation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17831483?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Restoration+Ecology&rft.atitle=Restoration+of+Bighorn+Sheep+Metapopulations+in+and+Near+Western+National+Parks&rft.au=Singer%2C+J+F%3BBleich%2C+C+V%3BGudorf%2C+A+M&rft.aulast=Singer&rft.aufirst=J&rft.date=2000-12-01&rft.volume=8&rft.issue=4&rft.spage=14&rft.isbn=&rft.btitle=&rft.title=Restoration+Ecology&rft.issn=10612971&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ovis canadensis; Environmental restoration; Metapopulations ER - TY - JOUR T1 - Effects of topography and soil properties on recharge at two sites in an agricultural field AN - 17822083; 4859309 AB - Field experiments were conducted from 1992 to 1995 to estimate ground water recharge rates at two sites located within a 2.7-hectare agricultural field. The field lies in a sand plain setting in central Minnesota and is cropped continuously in field corn. The sites are located at a topographically high (upland) site and a topographically low (lowland) site in an effort to quantify the effects of depression focusing of recharge. Three site-specific methods were used to estimate recharge rates: well hydrograph analysis, chlorofluorocarbon age dating, and an unsaturated zone water balance. All three recharge methods indicated that recharge rates at the lowland site (annual average of all methods of 29 cm) exceeded those at the upland site (annual average of 18 cm). On an annual basis, estimates by the individual methods ranged from 12 to 44 percent of precipitation at the upland site and from 21 to 83 percent at the lowland site. The difference in recharge rates between the sites is primarily attributed to depression focusing of surface water runon at the lowland site. However, two other factors were also important: the presence of thin lamellae at the upland site, and coarser textured soils below a depth of 1.5 m at the lowland site. JF - Journal of the American Water Resources Association AU - Delin, G N AU - Healy, R W AU - Landon, M K AU - Boehlke, J K AD - U.S. Geological Survey, 2280 Woodale Drive Mounds View, MN 55112, USA, delin@usgs.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 1401 EP - 1416 VL - 36 IS - 6 SN - 1093-474X, 1093-474X KW - USA, Minnesota KW - Aqualine Abstracts; Water Resources Abstracts KW - Recharge KW - Aquifers KW - Soil (Characteristics of) KW - Hydrographs KW - Soil Properties KW - Groundwater Dating KW - Groundwater Recharge KW - Topography KW - AQ 00001:Water Resources and Supplies KW - SW 2040:Groundwater management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17822083?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Effects+of+topography+and+soil+properties+on+recharge+at+two+sites+in+an+agricultural+field&rft.au=Delin%2C+G+N%3BHealy%2C+R+W%3BLandon%2C+M+K%3BBoehlke%2C+J+K&rft.aulast=Delin&rft.aufirst=G&rft.date=2000-12-01&rft.volume=36&rft.issue=6&rft.spage=1401&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Aquifers; Recharge; Soil (Characteristics of); Hydrographs; Topography; Soil Properties; Groundwater Dating; Groundwater Recharge ER - TY - JOUR T1 - Quantifying urban intensity in drainage basins for assessing stream ecological conditions AN - 17821907; 4859298 AB - Three investigations are underway, as part of the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program, to study the relation between varying levels of urban intensity in drainage basins and in-stream water quality, measured by physical, chemical, and biological factors. These studies are being conducted in the vicinities of Boston (Massachusetts), Salt Lake City (Utah), and Birmingham (Alabama), areas where rapid urbanization is occurring. For each study, water quality will be sampled in approximately 30 drainage basins that represent a gradient of urban intensity. This paper focuses on the methods used to characterize and select the basins used in the studies. It presents a methodology for limiting the variability of natural landscape characteristics in the potential study drainage basins and for ranking the magnitude of human influence, or urbanization, based on land cover, infrastructure, and socioeconomic data in potential study basins. Basin characterization efforts associated with the Boston study are described for illustrative purposes. JF - Journal of the American Water Resources Association AU - McMahon, G AU - Cuffney, T F AD - U.S. Geological Survey, 3916 Sunset Ridge Road, Raleigh, NC 27607, USA, gmcmahon@usgs.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 1247 EP - 1262 VL - 36 IS - 6 SN - 1093-474X, 1093-474X KW - USA, Alabama, Birmingham KW - USA, Massachusetts, Boston KW - USA, Utah, Salt Lake City KW - ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Pollution Abstracts; Water Resources Abstracts KW - Land Use KW - Urban Watersheds KW - Urbanization KW - Drainage KW - Catchment Areas KW - Water Quality KW - River basins KW - Water quality KW - Pollution surveys KW - Instream Flow KW - Land use KW - Catchment areas KW - Catchments KW - Urban Drainage KW - Water quality (Natural waters) KW - Urban areas KW - AQ 00001:Water Resources and Supplies KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - SW 4020:Evaluation process UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17821907?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Quantifying+urban+intensity+in+drainage+basins+for+assessing+stream+ecological+conditions&rft.au=McMahon%2C+G%3BCuffney%2C+T+F&rft.aulast=McMahon&rft.aufirst=G&rft.date=2000-12-01&rft.volume=36&rft.issue=6&rft.spage=1247&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - River basins; Water quality; Pollution surveys; Drainage; Catchments; Land use; Urban areas; Catchment areas; Water quality (Natural waters); Land Use; Urban Watersheds; Urbanization; Catchment Areas; Water Quality; Urban Drainage; Instream Flow ER - TY - JOUR T1 - Productivity of endangered least terns (Sterna antillarum athalassos) below a hydropower and flood-control facility on the Arkansas River AN - 17815978; 4848520 AB - We monitored breeding activities of endangered least terns (Sterna antillarum athalassos) to determine effects of hydropower and flood-control operations of Keystone Dam on the 94 km of the Arkansas River from Tulsa to Muskogee, Oklahoma. Our objectives were to determine numbers and productivity of least terns and flow management needs to reduce losses of nests and chicks from flooding and enhance nesting habitat. After breeding colonies of least terns were located, nest locations were mapped from 19 May to 26 August 1992 and 14 May to 30 August 1993. Both years had periodic high flows on the Arkansas River. Unlike 1992, bank-full flows in May 1993 reached a discharge of >140,000 cfs (cubic feet per second) through Keystone Dam before least terns initiated nesting. Flows in 1993 scoured and elevated existing sandbars and created new sandbars, resulting in an expansion of nesting habitat that was associated with an increase from 12 breeding colonies in 1992 to 20 colonies in 1993. Estimates of adult least terns increased from 125-166 breeding pairs in 1992 to 212-299 in 1993. Least terns produced 192 nests, 118 chicks, and 80 fledglings in 1992 compared with 345 nests, 285 chicks, and 143 fledglings in 1993. Loss of nests to flooding was greater in 1992 (46% of 77 nests lost) than 1993 (9% of 133 nests lost). Overall loss of chicks was greater in 1993 (50%) than 1992 (32%). Benefit to nesting habitats by periodic high flows before the nesting period was exemplified by a larger population of least terns and fewer losses of nests and chicks to flooding in 1993 than 1992 along the Arkansas River below Keystone Dam. JF - Southwestern Naturalist AU - Leslie, DM Jr AU - Wood, G K AU - Carter, T S AD - United States Geological Survey, Biological Resources Division, Oklahoma Cooperative Fish and Wildlife Research Unit, Department of Zoology, Oklahoma State University, Stillwater, OK 74078-3051, USA Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 483 EP - 489 VL - 45 IS - 4 SN - 0038-4909, 0038-4909 KW - USA, Oklahoma KW - Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Rivers KW - Recruitment KW - Environmental impact KW - Rare species KW - Sterna antillarum athalassosa KW - Breeding KW - Floods KW - Dams KW - Sterna antillarum athalassos KW - Endangered species KW - Secondary production KW - USA, Oklahoma, Arkansas R., Keystone Dam KW - Q5 08523:Conservation, wildlife management and recreation KW - D 04671:Birds KW - Q1 08442:Population dynamics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17815978?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Southwestern+Naturalist&rft.atitle=Productivity+of+endangered+least+terns+%28Sterna+antillarum+athalassos%29+below+a+hydropower+and+flood-control+facility+on+the+Arkansas+River&rft.au=Leslie%2C+DM+Jr%3BWood%2C+G+K%3BCarter%2C+T+S&rft.aulast=Leslie&rft.aufirst=DM&rft.date=2000-12-01&rft.volume=45&rft.issue=4&rft.spage=483&rft.isbn=&rft.btitle=&rft.title=Southwestern+Naturalist&rft.issn=00384909&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Breeding; Dams; Recruitment; Environmental impact; Rare species; Secondary production; Rivers; Floods; Endangered species; Sterna antillarum athalassos; Sterna antillarum athalassosa; USA, Oklahoma, Arkansas R., Keystone Dam ER - TY - JOUR T1 - Abundance and dispersion of shells of the white desertsnail, Eremarionta immaculata (Gastropoda: Pulmonata) AN - 17814713; 4848516 AB - Abundance and dispersion of exposed shells of the white desertsnail, Eremarionta immaculata, were examined in six 8-m diameter circular plots along a linear transect near the species' type locality in the Riverside Mountains, California. Shell abundance alone (n = 98) and added to the abundance of active desertsnails (n = 7) increased with abundance (25 to 58% cover) of rocks 40 cm in size, but was not related to slope (3.9 to 12.8%) or percent calcium (21.3 to 24.4%) of bedrock (predominately dolomite). Combined shell and desertsnail spatial patterns, analyzed with spline regression of nearest-neighbor graphs, primarily showed aggregated dispersions consisting of randomly-distributed clumps, each containing randomly-distributed individuals. The co-occurrence of E. immaculata shells and live desertsnails suggests shell remains may provide a method for detecting desertsnail populations. Rocks <5 cm in size probably provide favorable habitat for E. immaculata by offering substrate more suitable as sites for aestivation. JF - Southwestern Naturalist AU - Wiesenborn, W D AD - United States Bureau of Reclamation, P.O. Box 61470, Boulder City, NV 89006, USA Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 450 EP - 455 VL - 45 IS - 4 SN - 0038-4909, 0038-4909 KW - White desertsnail KW - USA, California KW - Ecology Abstracts KW - Abundance KW - Shells KW - Dispersal KW - Eremarionta immaculata KW - D 04658:Molluscs UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17814713?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Southwestern+Naturalist&rft.atitle=Abundance+and+dispersion+of+shells+of+the+white+desertsnail%2C+Eremarionta+immaculata+%28Gastropoda%3A+Pulmonata%29&rft.au=Wiesenborn%2C+W+D&rft.aulast=Wiesenborn&rft.aufirst=W&rft.date=2000-12-01&rft.volume=45&rft.issue=4&rft.spage=450&rft.isbn=&rft.btitle=&rft.title=Southwestern+Naturalist&rft.issn=00384909&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Eremarionta immaculata; Abundance; Dispersal; Shells ER - TY - JOUR T1 - Hatching Success of Turtle Eggs Exposed to Dry Incubation Environment AN - 17813293; 4847450 AB - We tested the hypothesis that large eggs of a terrestrial turtle when exposed to stressful hydric environments are more likely to hatch than are small eggs of an aquatic turtle. Eggs of terrestrial Terrapene carolina were compared to eggs of two aquatic species; Trachemys scripta, whose eggs are similar in size to those of T. carolina, and Chrysemys picta, with smaller eggs than either of the other two species. Eggs of all three species were incubated on wet and dry substrates with nominal substrate water potentials of -150 kPa and -1500 kPa, respectively. Overall, eggs of all three species on wetter substrate gained mass during incubation, whereas eggs on the drier substrate either gained less mass (T. carolina) or lost mass (T. scripta and C. picta) during incubation. Eggs of T. carolina on the dry substrate gained more mass during incubation than did eggs of either of the aquatic species on wet substrate. The ability of eggs of T. carolina to maintain a positive water balance on a substrate with water potential less than -300 kPa is unique among turtles that lay flexible-shelled eggs. All three species are consistent in that hatchlings from wetter substrate tended to incubate longer, to be heavier, and to have longer carapaces than those from drier substrate. The pattern of survivorship on the dry substrate did not support the hypothesis that larger eggs are more likely to survive to hatch than are smaller eggs when exposed to a stressful environment because survivorship was equivalent between larger eggs of T. carolina and smaller eggs of C. picta. In contrast, survivorship of T. scripta eggs was reduced compared to the other two species despite the relatively large egg size of T. scripta. JF - Journal of Herpetology AU - Tucker, J K AU - Paukstis, G L AD - Illinois Natural History Survey, Great Rivers Field Station, Long Term Resource Monitoring Program-Reach 26, 8450 Montclaire Avenue, Brighton, IL 62012, USA, john_k_tucker@usgs.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 529 EP - 534 VL - 34 IS - 4 SN - 0022-1511, 0022-1511 KW - Common box turtle KW - Common slider KW - Painted turtle KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Aquatic reptiles KW - Incubation KW - Freshwater KW - Chrysemys picta KW - Trachemys scripta KW - Terrapene carolina KW - Hatching KW - Eggs KW - D 04670:Reptiles KW - Q1 08324:Reproduction and development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17813293?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Herpetology&rft.atitle=Hatching+Success+of+Turtle+Eggs+Exposed+to+Dry+Incubation+Environment&rft.au=Tucker%2C+J+K%3BPaukstis%2C+G+L&rft.aulast=Tucker&rft.aufirst=J&rft.date=2000-12-01&rft.volume=34&rft.issue=4&rft.spage=529&rft.isbn=&rft.btitle=&rft.title=Journal+of+Herpetology&rft.issn=00221511&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Aquatic reptiles; Incubation; Hatching; Eggs; Trachemys scripta; Chrysemys picta; Terrapene carolina; Freshwater ER - TY - JOUR T1 - Predation on Corynorhinus townsendii by Rattus rattus AN - 17807758; 4848550 JF - Southwestern Naturalist AU - Fellers, G M AD - Western Ecological Research Center, United States Geological Survey, Point Reyes National Seashore, Point Reyes, CA 94956, USA Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 524 EP - 527 VL - 45 IS - 4 SN - 0038-4909, 0038-4909 KW - Black rat KW - Ecology Abstracts KW - Predation KW - Rattus rattus KW - Corynorhinus townsendii KW - D 04672:Mammals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17807758?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Southwestern+Naturalist&rft.atitle=Predation+on+Corynorhinus+townsendii+by+Rattus+rattus&rft.au=Fellers%2C+G+M&rft.aulast=Fellers&rft.aufirst=G&rft.date=2000-12-01&rft.volume=45&rft.issue=4&rft.spage=524&rft.isbn=&rft.btitle=&rft.title=Southwestern+Naturalist&rft.issn=00384909&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Corynorhinus townsendii; Rattus rattus; Predation ER - TY - JOUR T1 - Testing methods to produce landscape-scale presettlement vegetation maps from the U.S. public land survey records AN - 17803292; 4848286 AB - The U.S. Public Land Survey (PLS) notebooks are one of the best records of the pre-European settlement landscape and are widely used to recreate presettlement vegetation maps. The purpose of this study was to evaluate the relative ability of several interpolation techniques to map this vegetation, as sampled by the PLS surveyors, at the landscape level. Field data from Sylvania Wilderness Area, MI (U.S.A.), sampled at the same scale as the PLS data, were used for this test. Sylvania is comprised of a forested landscape similar to that present during presettlement times. Data were analyzed using two Arc/Info interpolation processes and indicator kriging. The resulting maps were compared to a 'correct' map of Sylvania, which was classified from aerial photographs. We found that while the interpolation methods used accurately estimated the relative forest composition of the landscape and the order of dominance of different vegetation types, they were unable to accurately estimate the actual area occupied by each vegetation type. Nor were any of the methods we tested able to recreate the landscape patterns found in the natural landscape. The most likely cause for these inabilities is the scale at which the field data (and hence the PLS data) were recorded. Therefore, these interpolation methods should not be used with the PLS data to recreate pre-European settlement vegetation at small scales (e.g., less than several townships or areas < 10 super(4) ha). Recommendations are given for ways to increase the accuracy of these vegetation maps. JF - Landscape Ecology AU - Manies, K L AU - Mladenoff, D J AD - U.S. Geological Survey, 345 Middlefield Rd., Menlo Park, CA 94025, USA, kmanies@usgs.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 741 EP - 754 VL - 15 IS - 8 SN - 0921-2973, 0921-2973 KW - USA, Michigan KW - Ecology Abstracts KW - Vegetation patterns KW - Landscape KW - Remote sensing KW - Maps KW - Methodology KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17803292?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Landscape+Ecology&rft.atitle=Testing+methods+to+produce+landscape-scale+presettlement+vegetation+maps+from+the+U.S.+public+land+survey+records&rft.au=Manies%2C+K+L%3BMladenoff%2C+D+J&rft.aulast=Manies&rft.aufirst=K&rft.date=2000-12-01&rft.volume=15&rft.issue=8&rft.spage=741&rft.isbn=&rft.btitle=&rft.title=Landscape+Ecology&rft.issn=09212973&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Landscape; Maps; Vegetation patterns; Methodology; Remote sensing ER - TY - JOUR T1 - Chlorophyll Maxima in Mountain Ponds and Lakes, Mount Rainier National Park, Washington State, USA AN - 17772294; 4823555 AB - Hypolimnetic chlorophyll maxima are common in clear lakes and often occur at depths with between 1 and 0.1% of the surface incident light. Little is known, however, about the concentrations of chlorophyll in thermally unstratified mountain ponds and how these concentrations compare to epilimnetic and hypolimnetic concentrations in mountain lakes. The objectives of this study were to document the concentrations of chlorophyll in thermally unstratified ponds and stratified lakes in Mount Rainier National Park (MORA) and to compare the results with concentrations and distributions of chlorophyll in clear-deep lakes in the Oregon Cascade Range and the Sierra Nevada Range. Thirty-two ponds (9.9 m deep) were sampled primarily during the summers of 1992 to 1996 at MORA. Water samples from near the surface (0.1-0.5 m) of ponds and near the surface and near the bottom of lakes were collected over the deepest part of each system. One exception, Mowich Lake, was sampled at seven depths between the surface and 50 m (Z=58.6 m). Chlorophyll concentrations were low in all systems, but higher in ponds (average 1.8 mu g times L super(-1)) than in lakes. Chlorophyll concentrations were higher in hypolimnetic lake samples (average 0.7 mu g times L super(-1)) than in epilimnetic lake samples (average 0.2 mu g times L super(-1)). Elevated concentrations of chlorophyll in mountain ponds, relative to those in hypolimnetic lake samples, may have been influenced by increased nutrient availability from interactions at the mud-water interface and, in this park, defecation by elk that used many of the ponds as wallows. Mowich Lake showed a chlorophyll maximum ( similar to 1.5 mu g times L super(-1)) near the lake bottom. Based on Secchi disk clarity readings, the depth of 1.0% incident surface solar radiation was greater than the maximum depths of the ponds and lakes. Comparative data from other clear-deep lakes in the Oregon Cascade Range and Sierra Nevada Range suggested that deep-chlorophyll maxima ( similar to 1.5 mu g times L super(-1)) occurred at 0.1% of the incident surface solar radiation, and that the typical maximum depths ranged between 75 and 140 m during thermal stratification. JF - Lake and Reservoir Management AU - Larson, G L AD - USGS Forest and Rangeland Ecosystem Science Center, 3200 SW Jefferson Way, Corvallis, OR 97331, USA Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 333 EP - 339 VL - 16 IS - 4 SN - 0743-8141, 0743-8141 KW - USA, Washington State KW - Wapiti KW - ASFA 1: Biological Sciences & Living Resources; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Chlorophylls KW - Chlorophyll KW - Manure KW - Water sampling KW - Water Sampling KW - Phytoplankton KW - USA, Sierra Nevada Mts. KW - Freshwater KW - Solar radiation KW - Ponds KW - Mountains KW - Lakes KW - Thermal stratification KW - Hypolimnion KW - USA, Oregon, Cascade Mts. KW - Solar Radiation KW - USA, Washington, Mount Rainier Natl. Park KW - Cervus elaphus KW - USA, Washington, Mt. Rainier Natl. Park KW - Nutrients (mineral) KW - Sediment-water exchanges KW - Q1 08461:Plankton KW - SW 0850:Lakes KW - Q2 09123:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17772294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Lake+and+Reservoir+Management&rft.atitle=Chlorophyll+Maxima+in+Mountain+Ponds+and+Lakes%2C+Mount+Rainier+National+Park%2C+Washington+State%2C+USA&rft.au=Larson%2C+G+L&rft.aulast=Larson&rft.aufirst=G&rft.date=2000-12-01&rft.volume=16&rft.issue=4&rft.spage=333&rft.isbn=&rft.btitle=&rft.title=Lake+and+Reservoir+Management&rft.issn=07438141&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Mountains; Chlorophylls; Lakes; Manure; Water sampling; Phytoplankton; Nutrients (mineral); Solar radiation; Sediment-water exchanges; Thermal stratification; Hypolimnion; Ponds; Solar Radiation; Chlorophyll; Water Sampling; Cervus elaphus; USA, Oregon, Cascade Mts.; USA, Washington, Mount Rainier Natl. Park; USA, Sierra Nevada Mts.; USA, Washington, Mt. Rainier Natl. Park; Freshwater ER - TY - JOUR T1 - The disparity between extreme rainfall events and rare floods -- with emphasis on the semi-arid American West AN - 17769943; 4825570 AB - Research beginning 40 years ago suggested that semi-arid lands of the USA have higher unit discharges for a given recurrence interval than occur in other areas. Convincing documentation and arguments for this suspicion, however, were not presented. Thus, records of measured rainfall intensities for specified durations and recurrence intervals, and theoretical depths of probable maximum precipitation for specified recurrence intervals and areal scales are considered here for comparing extreme rainfalls of semi-arid areas with those of other climatic areas. Runoff from semi-arid lands, as peaks of rare floods, is compared with that of other areas using various published records. Relative to humid areas, semi-arid parts of the conterminous USA have lower 100-year, 6-h rainfall intensities and smaller depths of 100-year probable maximum precipitation for 26-km super(2) areas. Nonetheless, maximum flood peaks, flash-flood potentials, and runoff potentials are generally larger in semi-arid areas than in more humid parts of the nation. Causes of this disparity between rainfall and runoff appear to be results of soil and vegetation that in humid areas absorb and intercept rainfall and attenuate runoff, but in semi-arid areas limit infiltration and enhance runoff from bare, crusted surfaces. These differences in soil and vegetation conditions are indicated by the relatively high curve numbers and drainage densities that are typical of semi-arid areas. Owing to soil and vegetation conditions, rare floods in semi-arid areas are more likely to cause landform change than are floods of similar magnitude elsewhere. JF - Hydrological Processes AU - Osterkamp, W R AU - Friedman, J M AD - U.S. Geological Survey, Water Resources Division, Tucson, AZ 85745, USA, wroster@usgs.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 2817 EP - 2829 VL - 14 IS - 16-17 SN - 0885-6087, 0885-6087 KW - USA KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Atmospheric precipitations KW - Rainfall-runoff Relationships KW - USA, West KW - Rainfall KW - Arid environments KW - Precipitation KW - Semiarid Lands KW - Geomorphology KW - Floods KW - Flash Floods KW - Flood Peak KW - Rainfall Intensity KW - Discharge Measurement KW - Runoff KW - Q2 09243:Structure, mechanics and thermodynamics KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17769943?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrological+Processes&rft.atitle=The+disparity+between+extreme+rainfall+events+and+rare+floods+--+with+emphasis+on+the+semi-arid+American+West&rft.au=Osterkamp%2C+W+R%3BFriedman%2C+J+M&rft.aulast=Osterkamp&rft.aufirst=W&rft.date=2000-12-01&rft.volume=14&rft.issue=16-17&rft.spage=2817&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=08856087&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special Issue: Linking Hydrology and Ecology. N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Atmospheric precipitations; Floods; Rainfall; Arid environments; Runoff; Geomorphology; Semiarid Lands; Rainfall-runoff Relationships; Flood Peak; Flash Floods; Precipitation; Discharge Measurement; Rainfall Intensity; USA, West ER - TY - JOUR T1 - Leaf Litter Breakdown in a Mountain Stream Impacted by a Hypolimnetic Release Reservoir AN - 17765960; 4824523 AB - The influence of a hypolimnetic reservoir discharge on breakdown of aspen (Populus tremuloides) leaves was investigated during the late summer and autumn at sites above and below a high mountain reservoir. During the two-year study, leaf packs (5-g envelopes) were secured to stream substrate in riffle/run areas. Leaves protected from invertebrates with fine mesh did not demonstrate differences in leaf loss between sites suggesting that microbial processing was equivalent. There were, however, significant differences in leaf loss in coarse mesh envelopes between sites, with losses higher at the site above the reservoir. Aquatic invertebrate communities colonizing the leaf packs also differed from above and below the reservoir suggesting that invertebrates played a role in the differing leaf loss. We hypothesize that during late summer and fall, leaf breakdown is slower below the reservoir because of the altered invertebrate community. JF - Journal of Freshwater Ecology AU - Nelson, S M AU - Roline, R A AD - U.S. Bureau of Reclamation, Technical Service Center, D-8220, P.O. Box 25007, Denver, CO 80225, USA Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 479 EP - 490 VL - 15 IS - 4 SN - 0270-5060, 0270-5060 KW - Quaking aspen KW - Water Resources Abstracts; Ecology Abstracts KW - Leaf litter KW - Autumn KW - Summer KW - Macrofauna KW - Decomposition KW - Reservoirs KW - Populus tremuloides KW - D 04310:Freshwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17765960?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Freshwater+Ecology&rft.atitle=Leaf+Litter+Breakdown+in+a+Mountain+Stream+Impacted+by+a+Hypolimnetic+Release+Reservoir&rft.au=Nelson%2C+S+M%3BRoline%2C+R+A&rft.aulast=Nelson&rft.aufirst=S&rft.date=2000-12-01&rft.volume=15&rft.issue=4&rft.spage=479&rft.isbn=&rft.btitle=&rft.title=Journal+of+Freshwater+Ecology&rft.issn=02705060&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Leaf litter; Autumn; Macrofauna; Summer; Reservoirs; Decomposition; Populus tremuloides ER - TY - JOUR T1 - Diel distribution of age-0 largemouth bass, Micropterus salmoides, in B. E. Jordan Lake, North Carolina (USA) and its relation to cover AN - 17756678; 4807227 AB - We used prepositioned area electrofishers (PAEs, 10x1.5 m) to assess diel differences in distribution of age-0 largemouth bass, Micropterus salmoides, in August 1992-1993 in a paired sampling design. PAEs were placed parallel to shore in an embayment of an unvegetated reservoir (B. R. Jordan Lake, North Carolina, USA). The catch per unit effort (CPUE=fish/PAE) was significantly higher at night than during the day in both years, indicating that age-0 largemouth bass exhibit nocturnal inshore movements. Age-0 largemouth bass captured inshore during day were smaller than those captured at night, indicating that movement patterns may change ontogenetically. Inshore-offshore movements of age-0 largemouth bass were significantly reduced in the presence of cover, suggesting that diel movements were influenced by specific habitat components. Diel movements likely were related to foraging, resting and predator avoidance behavior and could affect population dynamics and introduce bias in assessment programs.Original Abstract: En el mes agosto de los anos 1992 y 1993, evaluamos diferencias circadianas en la distribucion de individuos de edad 0 de Micropterus salmoides, utilizando un Pescador Electrico de Area Pre-posicionada (PAEs, 10x1.5 m), en un diseno de muestreo emparejado. Estos PAEs fueron posicionados en paralelo a la orilla de una bahia sin vegetacion del embalse B. E. Jordan (North Carolina, USA). En los dos anos estudiados, las capturas por unidad de esfuerzo (CPUE=peces/PAE) fueron significativamente mayores por la noche que por el dia, indicando que estos juveniles hacen movimientos nocturnos hacia la orilla. Los juveniles capturados en la orilla durante el dia fueron mas pequenos que los capturados por la noche, indicando tambien que los patrones de movimientos pueden cambiar a lo largo de la ontogenia. Los movimientos de estos juveniles hacia y desde la orilla se redujeron significativamente en presencia de cubierta vegetal, lo que sugiere que los movimientos circadianos pueden estar influenciados por componentes especificos del habitat. Probablemente, los movimientos circadianos esten relacionados con el forrageo, el descanso, o con comportamientos de rechazo a la predacion y, por ello, puedan afectar a la dinamica de la problacion e introducir errores en programas de evaluacion. JF - Ecology of Freshwater Fish AU - Irwin, E R AU - Noble, R L AD - United States Geological Survey, Alabama Cooperative Fish and Wildlife Research Unit, 331 Funchess Hall, Auburn University, Auburn, AL 36849, USA Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 229 EP - 235 VL - 9 IS - 4 SN - 0906-6691, 0906-6691 KW - Juveniles KW - Largemouth bass KW - USA, North Carolina KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Lakes KW - Micropterus salmoides KW - Spatial distribution KW - Interspecific relationships KW - Activity patterns KW - Freshwater fish KW - Catch/effort KW - USA, North Carolina, Jordan L. KW - Diel activity KW - D 04668:Fish KW - Q1 08423:Behaviour UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17756678?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecology+of+Freshwater+Fish&rft.atitle=Diel+distribution+of+age-0+largemouth+bass%2C+Micropterus+salmoides%2C+in+B.+E.+Jordan+Lake%2C+North+Carolina+%28USA%29+and+its+relation+to+cover&rft.au=Irwin%2C+E+R%3BNoble%2C+R+L&rft.aulast=Irwin&rft.aufirst=E&rft.date=2000-12-01&rft.volume=9&rft.issue=4&rft.spage=229&rft.isbn=&rft.btitle=&rft.title=Ecology+of+Freshwater+Fish&rft.issn=09066691&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Lakes; Interspecific relationships; Freshwater fish; Activity patterns; Catch/effort; Spatial distribution; Diel activity; Micropterus salmoides; USA, North Carolina, Jordan L. ER - TY - JOUR T1 - The response of herbaceous-layer vegetation to anthropogenic disturbance in intermittent stream bottomland forests of southern Indiana, USA AN - 17730288; 4794825 AB - Between 1993 and 1995 we sampled herbaceous layer vegetation on 84 plots in Platanus/Asarum Wet-Mesic Bottomland forests to determine how these forests have responded to human disturbance. Four different disturbance types were sampled (abandoned agricultural are as, clearcuts, group-selection openings, and single-tree selection openings), and uncut 80-100 year-old reference stands were sampled for comparison. Detrended Correspondence Analysis (DCA), distance analyses (chord distance and normalized Euclidean distance) and similarity analysis (Bray-Curtis similarity coefficient) suggest that agricultural use has shifted herbaceous-layer vegetation composition away from that typical of the reference forests, but that clearcutting, group-selection harvest, and single-tree selection harvest have not greatly shifted herbaceous composition. This shift in vegetation on abandoned agricultural land resulted from a loss of indicator species, such as Cardamine concatenata (Michx.) Sw., Stellaria pubera Michx., and Laportea canadensis (L.) Weddell and an influx of disturbance, exotic, and nonforest species (e.g., Lycopodium complanatum L., Lonicera japonica Thunb. and Senecio aureus L.). However, only two species found in reference stands, Erigenia bulbosa (Michx.) Nutt. and Sphenopholis obtusata (Michx.) Scribn., were missing from clearcuts, group-selection openings, and single-tree selection openings. The species richness values of abandoned agriculture, clearcut, and group-selection plots were generally greater than those of single-tree selection and reference plots. Abandoned agricultural areas had much greater total species richness because of the influx of dry-site, exotic, disturbance, and non-forest species. JF - Plant Ecology AU - Jenkins, MA AU - Parker, G R AD - National Park Service, Twin Creeks Natural Resources Center, Great Smoky Mountains National Park, Gatlinburg, TN 37738, USA, mike_jenkins@nps.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 223 EP - 237 PB - Kluwer Academic Publishers VL - 151 IS - 2 SN - 1385-0237, 1385-0237 KW - USA, Indiana KW - Sustainability Science Abstracts; Human Population; Ecology Abstracts KW - Vegetation KW - Forests KW - Disturbance KW - Streams KW - Human impact KW - M1 200:Human Population-Biosphere Interactions KW - D 04700:Management KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17730288?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Plant+Ecology&rft.atitle=The+response+of+herbaceous-layer+vegetation+to+anthropogenic+disturbance+in+intermittent+stream+bottomland+forests+of+southern+Indiana%2C+USA&rft.au=Jenkins%2C+MA%3BParker%2C+G+R&rft.aulast=Jenkins&rft.aufirst=MA&rft.date=2000-12-01&rft.volume=151&rft.issue=2&rft.spage=223&rft.isbn=&rft.btitle=&rft.title=Plant+Ecology&rft.issn=13850237&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-07-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - USA, Indiana; Human impact; Streams; Forests; Vegetation; Disturbance ER - TY - JOUR T1 - Pesticides in Ground Water of the United States, 1992-1996 AN - 17723634; 4793810 AB - During the first cycle of the National Water Quality Assessment (1992-1996), ground water in 20 of the nation's major hydrologic basins was analyzed for 90 pesticide compounds (pesticides and degradates). One or more of the pesticide compounds examined were detected at 48.4% of the 2485 ground water sites sampled. However, approximately 70% of the sites where pesticides were detected, two or more pesticide compounds analyzed were present--documenting the prevalence of pesticide mixtures in ground water. The pesticide concentrations encountered were generally low, with the median total concentration (summation of concentrations for the 90 pesticide compounds) being 0.046 mu g/L. Pesticides were commonly detected in shallow ground water beneath both agricultural (60.4%) and urban (48.5%) areas. This is an important finding because, although agricultural activities have long been associated with pesticide contamination, urban areas have only recently been recognized as a potential source of these types of compounds. Pesticides with higher frequencies of detection were generally those with more extensive use, greater environmental persistence, and greater mobility in ground water (lower soil-water partition coefficients). JF - Ground Water AU - Kolpin, D W AU - Barbash, JE AU - Gilliom, R J AD - U.S. Geological Survey, 400 S. Clinton St., Iova City, IA 52244, USA, dwkolpin@usgs.gov Y1 - 2000/12// PY - 2000 DA - December 2000 SP - 858 EP - 863 VL - 38 IS - 6 SN - 0017-467X, 0017-467X KW - USA KW - Pollution Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Chemical analysis (see also Individual techniques) KW - Agriculture KW - Pollution detection KW - Pesticides (see also Bactericides, Weedkillers) KW - Water Analysis KW - Land KW - Fate of Pollutants KW - Chemical Analysis KW - Groundwater Pollution KW - Water analysis KW - Agrochemicals KW - Pollution (Groundwater) KW - Pesticides KW - Groundwater pollution KW - Cultivated Lands KW - Chemical analysis KW - AQ 00001:Water Resources and Supplies KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17723634?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Pesticides+in+Ground+Water+of+the+United+States%2C+1992-1996&rft.au=Kolpin%2C+D+W%3BBarbash%2C+JE%3BGilliom%2C+R+J&rft.aulast=Kolpin&rft.aufirst=D&rft.date=2000-12-01&rft.volume=38&rft.issue=6&rft.spage=858&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Pollution detection; Pesticides; Groundwater pollution; Chemical analysis; Agrochemicals; Agriculture; Chemical analysis (see also Individual techniques); Pollution (Groundwater); Pesticides (see also Bactericides, Weedkillers); Land; Water analysis; Water Analysis; Fate of Pollutants; Chemical Analysis; Groundwater Pollution; Cultivated Lands ER - TY - JOUR T1 - Evaluation of Ground-Penetrating Radar to Detect Free-Phase Hydrocarbons in Fractured Rocks--Results of Numerical Modeling and Physical Experiments AN - 17719129; 4793819 AB - The suitability of common-offset ground-penetrating radar (GPR) to detect free-phase hydrocarbons in bedrock fractures was evaluated using numerical modeling and physical experiments. The results of one- and two-dimensional numerical modeling at 100 megahertz indicate that GPR reflection amplitudes are relatively insensitive to fracture apertures ranging from 1 to 4 mm. The numerical modeling and physical experiments indicate that differences in the fluids that fill fractures significantly affect the amplitude and the polarity of electromagnetic waves reflected by subhorizontal fractures. Air-filled and hydrocarbon-filled fractures generate low-amplitude reflections that are in-phase with the transmitted pulse. Water-filled fractures create reflections with greater amplitude and opposite polarity than those reflections created by air-filled or hydrocarbon-filled fractures. The results from the numerical modeling and physical experiments demonstrate it is possible to distinguish water-filled fracture reflections from air- or hydrocarbon-filled fracture reflections, nevertheless subsurface heterogeneity, antenna coupling changes, and other sources of noise will likely make it difficult to observe these changes in GPR field data. This indicates that the routine application of common-offset GPR reflection methods for detection of hydrocarbon-filled fractures will be problematic. Ideal cases will require appropriately processed, high-quality GPR data, ground-truth information, and detailed knowledge of subsurface physical properties. Conversely, the sensitivity of GPR methods to changes in subsurface physical properties as demonstrated by the numerical and experimental results suggests the potential of using GPR methods as a monitoring tool. GPR methods may be suited for monitoring pumping and tracer tests, changes in site hydrologic conditions, and remediation activities. JF - Ground Water AU - Lane, JW Jr AU - Buursink, M L AU - Haeni, F P AU - Versteeg, R J AD - U.S. Geological Survey, 11 Sherman Pl., U-5015, Storrs, CT 06269, USA, jwlane@usgs.gov Y1 - 2000/12// PY - 2000 DA - December 2000 SP - 929 EP - 938 VL - 38 IS - 6 SN - 0017-467X, 0017-467X KW - ground penetrating radar KW - Water Resources Abstracts; Aqualine Abstracts KW - Geologic Fractures KW - Hydrocarbons KW - Tracers KW - Analytical Methods KW - Data Acquisition KW - Radar KW - Hydrology KW - Hydrocarbon KW - Pumping KW - SW 5040:Data acquisition KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17719129?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Evaluation+of+Ground-Penetrating+Radar+to+Detect+Free-Phase+Hydrocarbons+in+Fractured+Rocks--Results+of+Numerical+Modeling+and+Physical+Experiments&rft.au=Lane%2C+JW+Jr%3BBuursink%2C+M+L%3BHaeni%2C+F+P%3BVersteeg%2C+R+J&rft.aulast=Lane&rft.aufirst=JW&rft.date=2000-12-01&rft.volume=38&rft.issue=6&rft.spage=929&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Tracers; Radar; Hydrology; Pumping; Hydrocarbon; Geologic Fractures; Data Acquisition; Analytical Methods; Hydrocarbons ER - TY - JOUR T1 - Enhancements of nonpoint source monitoring of volatile organic compounds in ground water AN - 16127557; 4859303 AB - The U.S. Geological Survey (USGS) has compiled a national retrospective data set of analyses of volatile organic compounds (VOCs) in ground water of the United States. The data are from Federal, State, and local nonpoint-source monitoring programs, collected between 1985-95. This data set is being used to augment data collected by the USGS National Water-Quality Assessment (NAWQA) Program to ascertain the occurrence of VOCs in ground water nationwide. Eleven attributes of the retrospective data set were evaluated to determine the suitability of the data to augment NAWQA data in answering occurrence questions of varying complexity. These 11 attributes are the VOC analyte list and the associated reporting levels for each VOC, well type, well-casing material, type of openings in the interval (screened interval or open hole), well depth, depth to the top and bottom of the open interval(s), depth to water level in the well, aquifer type (confined or unconfined), and aquifer lithology. VOCs frequently analyzed included solvents, industrial reagents, and refrigerants, but other VOCs of current interest were not frequently analyzed. About 70 percent of the sampled wells have the type of well documented in the data set, and about 74 percent have well depth documented. However, the data set generally lacks documentation of other characteristics, such as well-casing material, information about the screened or open interval(s), depth to water level in the well, and aquifer type and lithology. For example, only about 20 percent of the wells include information on depth to water level in the well and only about 14 percent of the wells include information about aquifer type. The three most important enhancements to VOC data collected in nonpoint-source monitoring programs for use in a national assessment of VOC occurrence in ground water would be an expanded VOC analyte list, recording the reporting level for each analyte for every analysis, and recording key ancillary information about each well. These enhancements would greatly increase the usefulness of VOC data in addressing complex occurrence questions, such as those that seek to explain the reasons for VOC occurrence and nonoccurrence in ground water of the United States. JF - Journal of the American Water Resources Association AU - Lapham, W W AU - Moran, MJ AU - Zogorski, J S AD - NAWQA Program, U.S. Geological Survey, 12201 Sunrise Valley Dr., MS 413, Reston, VA 20192, USA, wlapham@usgs.gov Y1 - 2000/12// PY - 2000 DA - Dec 2000 SP - 1321 EP - 1334 VL - 36 IS - 6 SN - 1093-474X, 1093-474X KW - USA KW - VOCs KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Aquifers KW - Pollution monitoring KW - Data collection KW - Government programs KW - Pollution (Nonpoint sources) KW - Nonpoint Pollution Sources KW - Nonpoint pollution KW - Water pollution KW - Wells (see also Boreholes) KW - Wells KW - Groundwater (see also Aquifers) KW - Ground water KW - Groundwater pollution KW - Organic Compounds KW - Organic compounds KW - Groundwater KW - Monitoring KW - Volatile organic compounds KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16127557?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Enhancements+of+nonpoint+source+monitoring+of+volatile+organic+compounds+in+ground+water&rft.au=Lapham%2C+W+W%3BMoran%2C+MJ%3BZogorski%2C+J+S&rft.aulast=Lapham&rft.aufirst=W&rft.date=2000-12-01&rft.volume=36&rft.issue=6&rft.spage=1321&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2001-07-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Ground water; Organic compounds; Monitoring; Water pollution; Aquifers; Pollution monitoring; Data collection; Government programs; Groundwater pollution; Nonpoint pollution; Volatile organic compounds; Pollution (Nonpoint sources); Groundwater (see also Aquifers); Wells (see also Boreholes); Wells; Nonpoint Pollution Sources; Organic Compounds; Groundwater ER - TY - JOUR T1 - Triggering of earthquake aftershocks by dynamic stresses AN - 17737538; 4808709 AB - It is thought that small "static" stress changes due to permanent fault displacement can alter the likelihood of, or trigger, earthquakes on nearby faults. Many studies of triggering in the near-field, particularly of aftershocks, rely on these static changes as the triggering agent and consider them only in terms of equivalent changes in the applied load and the fault. Here we report a comparison of the aftershock pattern of the moment magnitude M sub(w) = 7.3 Landers earthquake, not only with static stress changes but also with transient, oscillatory stress changes transmitted as seismic waves (that is, "dynamic" stresses). Dynamic stresses do not permanently change the applied load and thus can trigger earthquakes only by altering the mechanical state or properties of the fault zone. These dynamically weakened faults may fail after the seismic waves have passed by, and might even cause earthquakes that would not otherwise have occurred. We find similar asymmetries in the aftershock and dynamic stress patterns, the latter being due to rupture propagation, whereas the static stress changes lack this asymmetry. Previous studies have shown that dynamic stresses can promote failure at remote distances, but here we show that they can also do so nearby. JF - Nature AU - Kilb, D AU - Gomberg, J AU - Bodin, P AD - US Geol. Surv., Cent. for Earthquake Res. and Information, 3876 Central Ave., Suite 2, Memphis, TN 38152, USA, gomberg@usgs.gov Y1 - 2000/11/30/ PY - 2000 DA - 2000 Nov 30 SP - 570 EP - 574 PB - Macmillan Publishers Ltd. VL - 408 IS - 6812 SN - 0028-0836, 0028-0836 KW - aftershocks KW - faults KW - natural disasters KW - Risk Abstracts KW - Earthquakes KW - Hazards KW - Seismic activity KW - Stress KW - R2 23030:Natural hazards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17737538?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature&rft.atitle=Triggering+of+earthquake+aftershocks+by+dynamic+stresses&rft.au=Kilb%2C+D%3BGomberg%2C+J%3BBodin%2C+P&rft.aulast=Kilb&rft.aufirst=D&rft.date=2000-11-30&rft.volume=408&rft.issue=6812&rft.spage=570&rft.isbn=&rft.btitle=&rft.title=Nature&rft.issn=00280836&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Seismic activity; Hazards; Earthquakes; Stress ER - TY - JOUR T1 - The use of earthquake rate changes as a stress meter at Kilauea volcano AN - 17645700; 4790577 AB - Stress changes in the Earth's crust are generally estimated from model calculations that use near-surface deformation as an observational constraint. But the widespread correlation of changes of earthquake activity with stress has led to suggestions that stress changes might be calculated from earthquake occurrence rates obtained from seismicity catalogues. Although this possibility has considerable appeal, because seismicity data are routinely collected and have good spatial and temporal resolution, the method has not yet proven successful, owing to the non-linearity of earthquake rate changes with respect to both stress and time. Here, however, we present two methods for inverting earthquake rate data to infer stress changes, using a formulation for the stress- and time-dependence of earthquake rates. Application of these methods at Kilauea volcano, in Hawaii, yields good agreement with independent estimates, indicating that earthquake rates can provide a practical remote-sensing stress meter. JF - Nature AU - Dieterich, J AU - Cayol, V AU - Okubo, P AD - US Geol. Surv., Menlo Park, CA 94025, USA, jdieterich@usgs.gov Y1 - 2000/11/23/ PY - 2000 DA - 2000 Nov 23 SP - 457 EP - 460 PB - Macmillan Publishers Ltd. VL - 408 IS - 6811 SN - 0028-0836, 0028-0836 KW - natural disasters KW - probability KW - Risk Abstracts KW - Earthquakes KW - Volcanoes KW - Seismic activity KW - Remote sensing KW - Stress KW - R2 23030:Natural hazards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17645700?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature&rft.atitle=The+use+of+earthquake+rate+changes+as+a+stress+meter+at+Kilauea+volcano&rft.au=Dieterich%2C+J%3BCayol%2C+V%3BOkubo%2C+P&rft.aulast=Dieterich&rft.aufirst=J&rft.date=2000-11-23&rft.volume=408&rft.issue=6811&rft.spage=457&rft.isbn=&rft.btitle=&rft.title=Nature&rft.issn=00280836&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Stress; Remote sensing; Seismic activity; Earthquakes; Volcanoes ER - TY - JOUR T1 - Geochemical modeling of iron, sulfur, oxygen and carbon in a coastal plain aquifer AN - 17848687; 4877241 AB - Fe(III) reduction in the Magothy aquifer of Long Island, NY, results in high dissolved-iron concentrations that degrade water quality. Geochemical modeling was used to constrain iron-related geochemical processes and redox zonation along a flow path. The observed increase in dissolved inorganic carbon is consistent with the oxidation of sedimentary organic matter coupled to the reduction of O sub(2) and SO super(2) sub(4) super(-) in the aerobic zone, and to the reduction of SO super(2) sub(4) super(-) in the anaerobic zone; estimated rates of CO sub(2) production through reduction of Fe(III) were relatively minor by comparison. The rates of CO sub(2) production calculated from dissolved inorganic carbon mass transfer (2.55 x 10 super(-4) to 48.6 x 10 super(-4) mmol l super(-1) yr super(-1)) generally were comparable to the calculated rates of CO sub(2) production by the combined reduction of O sub(2), Fe(III) and SO super(2) sub(4) super(-) (1.31 x 10 super(-4) to 15 x 10 super(-4) mmol l super(-1) yr super(-1)). The overall increase in SO super(2) sub(4) super(-) concentrations along the flow path, together with the results of mass-balance calculations, and variations in delta super(34)S values along the flow path indicate that SO super(2) sub(4) super(-) loss through microbial reduction is exceeded by SO super(2) sub(4) super(-) gain through diffusion from sediments and through the oxidation of FeS sub(2). Geochemical and microbial data on cores indicate that Fe(III) oxyhydroxide coatings on sediment grains in local, organic carbon- and SO super(2) sub(4) super(-)-rich zones have been depleted by microbial reduction and resulted in localized SO super(2) sub(4) super(-)-reducing zones in which the formation of iron disulfides decreases dissolved iron concentrations. These localized zones of SO super(2) sub(4) super(-) reduction, which are important for assessing zones of low dissolved iron for water-supply development, could be overlooked by aquifer studies that rely only on groundwater data from well-water samples for geochemical modeling. JF - Journal of Hydrology (Amsterdam) AU - Brown, C J AU - Schoonen, MAA AU - Candela, J L AD - US Geological Survey, East Hartford, CT 06108, USA, cjbrown@usgs.gov Y1 - 2000/11/21/ PY - 2000 DA - 2000 Nov 21 SP - 147 EP - 168 VL - 237 IS - 3-4 SN - 0022-1694, 0022-1694 KW - USA, New York, Long Island KW - Water Resources Abstracts; Aqualine Abstracts KW - Sulfur KW - Aquifers KW - Sulphur KW - Organic matter KW - Water Quality KW - Mass Transfer KW - Oxidation-reduction Potential KW - Carbon KW - Organic Matter KW - Chemical Reduction KW - Reduction (Chemical) KW - Carbons KW - Water Supply Development KW - Groundwater (see also Aquifers) KW - Mass transfer KW - Groundwater KW - Iron KW - Oxidation-reduction potential KW - Water quality (Natural waters) KW - SW 0880:Chemical processes KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17848687?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology+%28Amsterdam%29&rft.atitle=Geochemical+modeling+of+iron%2C+sulfur%2C+oxygen+and+carbon+in+a+coastal+plain+aquifer&rft.au=Brown%2C+C+J%3BSchoonen%2C+MAA%3BCandela%2C+J+L&rft.aulast=Brown&rft.aufirst=C&rft.date=2000-11-21&rft.volume=237&rft.issue=3-4&rft.spage=147&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology+%28Amsterdam%29&rft.issn=00221694&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Aquifers; Sulphur; Reduction (Chemical); Organic matter; Carbons; Groundwater (see also Aquifers); Mass transfer; Oxidation-reduction potential; Iron; Water quality (Natural waters); Sulfur; Carbon; Organic Matter; Chemical Reduction; Water Supply Development; Mass Transfer; Water Quality; Groundwater; Oxidation-reduction Potential ER - TY - JOUR T1 - Sediment distribution and transport along a rocky, embayed coast: Monterey Peninsula and Carmel Bay, California AN - 17724391; 4790644 AB - Field measurements of beach morphology and sedimentology were made along the Monterey Peninsula and Carmel Bay, California, in the spring and summer of 1997. These data were combined with low-altitude aerial imagery, high-resolution bathymetry, and local geology to understand how coastal geomorphology, lithology, and tectonics influence the distribution and transport of littoral sediment in the nearshore and inner shelf along a rocky shoreline over the course of decades. Three primary modes of sediment distribution in the nearshore and on the inner shelf off the Monterey Peninsula and in Carmel Bay were observed. Along stretches of the study area that were exposed to the dominant wave direction, sediment has accumulated in shore-normal bathymetric lows interpreted to be paleo-stream channels. Where the coastline is oriented parallel to the dominant wave direction and streams channels trend perpendicular to the coast, sediment-filled paleo-stream channels occur in the nearshore as well, but here they are connected to one another by shore-parallel ribbons of sediment at depths between 2 and 6 m. Where the coastline is oriented parallel to the dominant wave direction and onshore stream channels are not present, only shore-parallel patches of sediment at depths greater than 15 m are present. We interpret the distribution and interaction or transport of littoral sediment between pocket beaches along this coastline to be primarily controlled by the northwest-trending structure of the region and the dominant oceanographic regime. Because of the structural barriers to littoral transport, peaks in wave energy appear to be the dominant factor controlling the timing and magnitude of sediment transport between pocket beaches, more so than along long linear coasts. Accordingly, the magnitude and timing of sediment transport is dictated by the episodic nature of storm activity. JF - Marine Geology AU - Storlazzi, C D AU - Field, ME AD - UCSC/USGS Coastal Geology and Imaging Laboratory Co-operative, Department of Earth Sciences and Institute of Marine Sciences, A-360 Earth and Marine Sciences Building, University of California, 1156 High Street, 95064-1077 Santa Cruz, CA USA Y1 - 2000/11/15/ PY - 2000 DA - 2000 Nov 15 SP - 289 EP - 316 PB - Elsevier VL - 170 IS - 3-4 SN - 0025-3227, 0025-3227 KW - USA, California, Carmel Bay KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Oceanic Abstracts KW - Sediment Transport KW - Marine KW - INE, USA, California, Carmel Bay KW - Beaches KW - INE, USA, California, Monterey KW - Rocky shores KW - Coastal morphology KW - Sediment transport KW - Storms KW - O 3010:Geology and Geophysics KW - Q2 09264:Sediments and sedimentation KW - SW 0870:Erosion and sedimentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17724391?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Geology&rft.atitle=Sediment+distribution+and+transport+along+a+rocky%2C+embayed+coast%3A+Monterey+Peninsula+and+Carmel+Bay%2C+California&rft.au=Storlazzi%2C+C+D%3BField%2C+ME&rft.aulast=Storlazzi&rft.aufirst=C&rft.date=2000-11-15&rft.volume=170&rft.issue=3-4&rft.spage=289&rft.isbn=&rft.btitle=&rft.title=Marine+Geology&rft.issn=00253227&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Beaches; Rocky shores; Coastal morphology; Sediment transport; Storms; Sediment Transport; INE, USA, California, Carmel Bay; INE, USA, California, Monterey; Marine ER - TY - JOUR T1 - Identification of Juvenile Fall versus Spring Chinook Salmon Migrating through the Lower Snake River Based on Body Morphology AN - 879469372; 11693343 AB - We tested the use of body morphology to distinguish among subyearling fall-run, subyearling spring-run, and yearling spring-run smolts of chinook salmon Oncorhynchus tshawytscha at two lower Snake River dams during the summer emigration. Based on principal-components analysis, subyearling fall-run chinook salmon had smaller heads and eyes, deeper bodies, and shorter caudal peduncles than yearling spring-run chinook salmon. Subyearling spring-run chinook salmon had characteristics of both subyearling fall-run and yearling spring-run chinook salmon. Subyearling fall-run and yearling spring-run chinook salmon were classified with more than 80% accuracy by means of discriminant analysis. Classification accuracy for subyearling spring-run chinook salmon was only 26%. We conclude that body morphology can be used to accurately identify the age of chinook salmon smolts but not the run. Therefore, genetic analyses are the only means of reliably determining the run composition of summer migrants in the lower Snake River. JF - Transactions of the American Fisheries Society AU - Tiffan, Kenneth F AU - Rondorf, Dennis W AU - Garland, Rodney D AU - Verhey, Peter A AD - United States Geological Survey, Biological Resources Division, Columbia River Research Laboratory, Cook, Washington 98605, USA Y1 - 2000/11// PY - 2000 DA - Nov 2000 SP - 1389 EP - 1395 PB - American Fisheries Society, 5410 Grosvenor Ln. Bethesda MD 20814-2199 USA VL - 129 IS - 6 SN - 0002-8487, 0002-8487 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 1: Biological Sciences & Living Resources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/879469372?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Identification+of+Juvenile+Fall+versus+Spring+Chinook+Salmon+Migrating+through+the+Lower+Snake+River+Based+on+Body+Morphology&rft.au=Tiffan%2C+Kenneth+F%3BRondorf%2C+Dennis+W%3BGarland%2C+Rodney+D%3BVerhey%2C+Peter+A&rft.aulast=Tiffan&rft.aufirst=Kenneth&rft.date=2000-11-01&rft.volume=129&rft.issue=6&rft.spage=1389&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/10.1577%2F1548-8659%282000%291292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-07-01 N1 - Last updated - 2014-02-21 DO - http://dx.doi.org/10.1577/1548-8659(2000)129<1389:IOJFVS>2.0.CO;2 ER - TY - JOUR T1 - Carbon in watershed catchments of pinyon-juniper woodlands AN - 50286312; 2004-048287 JF - Eos, Transactions, American Geophysical Union AU - Ebinger, Michael H AU - Breshears, David D AU - Allen, Craig D AU - Hogan, John AU - Kammerdiener, Susan R Y1 - 2000/11// PY - 2000 DA - November 2000 SP - 271 PB - American Geophysical Union, Washington, DC VL - 81 IS - 48, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - soils KW - hydrology KW - forests KW - concentration KW - Spermatophyta KW - Plantae KW - erosion KW - Gymnospermae KW - watersheds KW - Coniferales KW - New Mexico KW - Pinus KW - nutrients KW - Bandelier National Monument KW - carbon KW - Pinaceae KW - drainage basins KW - trees KW - soil erosion KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50286312?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Carbon+in+watershed+catchments+of+pinyon-juniper+woodlands&rft.au=Ebinger%2C+Michael+H%3BBreshears%2C+David+D%3BAllen%2C+Craig+D%3BHogan%2C+John%3BKammerdiener%2C+Susan+R&rft.aulast=Ebinger&rft.aufirst=Michael&rft.date=2000-11-01&rft.volume=81&rft.issue=48%2C+Suppl.&rft.spage=271&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2000 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Bandelier National Monument; carbon; concentration; Coniferales; drainage basins; erosion; forests; Gymnospermae; hydrology; New Mexico; nutrients; Pinaceae; Pinus; Plantae; soil erosion; soils; Spermatophyta; trees; United States; watersheds ER - TY - JOUR T1 - Spatial Factors Affecting Wayfinding and Orientation. A Case Study in a Shopping Mall AN - 34814507; 200910-B7-0082643 (MB); 200910-30-0135620 (CE); 10903914 (EN) AB - Although wayfinding and orientation in complex buildings is an important criterion for environmental behavior, research on the subject remains limited and the issue is not considered sufficiently during the design process. This article examines the factors that affect wayfinding behavior of individuals in a shopping mall and explains how their behaviors are influenced by factors such as building configuration, visual accessibility, circulation systems, and signage. The case study conducted in a mall in Turkey draws a sample profile of Turkish society from a wayfinding point of view. The relation between wayfinding behavior and shopping activity is discussed. The results show that people did not find the signage system sufficient. Although they found the mall an easy setting from the wayfinding point of view, they still required better solutions to find specific destinations such as telephone booths, restrooms, or stores located in parts of the building that were not visually accessible. JF - Environment & Behavior AU - Dogu, Ufuk AU - Erkip, Feyzan AD - Department of Interior Architecture and Environmental Design, Faculty of Art, Design, and Architecture at Bilkent University, Ankara, Turkey PY - 2000 SP - 731 EP - 755 PB - Sage Publications, 2455 Teller Road, Thousand Oaks, CA, 91320, USA, [mailto:sagescience@sagepub.com], [URL:http://www.sagepub.com] VL - 32 IS - 6 SN - 0013-9165, 0013-9165 KW - Materials Business File (MB); Civil Engineering (CE); Environmental Engineering (EN) KW - Wayfinding KW - Shopping malls KW - Orientation KW - Stores KW - Visual KW - Design engineering KW - Circulation KW - Booths KW - Article KW - EE 10:General Environmental Engineering (EN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/34814507?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environment+%26+Behavior&rft.atitle=Spatial+Factors+Affecting+Wayfinding+and+Orientation.+A+Case+Study+in+a+Shopping+Mall&rft.au=Dogu%2C+Ufuk%3BErkip%2C+Feyzan&rft.aulast=Dogu&rft.aufirst=Ufuk&rft.date=2000-11-01&rft.volume=32&rft.issue=6&rft.spage=731&rft.isbn=&rft.btitle=&rft.title=Environment+%26+Behavior&rft.issn=00139165&rft_id=info:doi/10.1177%2F00139160021972775 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-10-01 N1 - Number of references - 27 N1 - Last updated - 2011-11-14 DO - http://dx.doi.org/10.1177/00139160021972775 ER - TY - JOUR T1 - Influence of Mining-Related Activities on Concentrations of Metals in Water and Sediment from Streams of the Black Hills, South Dakota AN - 19427079; 5993920 AB - Water and sediment samples were collected from streams in Spearfish Creek, Whitewood Creek, and Bear Butte Creek watersheds in the Black Hills, SD, an area impacted by gold mining operations. Arsenic concentrations that exceeded the U.S. Environmental Protection Agency's Maximum Concentration Limit of 50 7g/L for drinking water were found in water from Annie Creek, a tributary of Spearfish Creek, and from Whitewood Creek. Gold Run, a tributary of Whitewood Creek, and Annie Creek contained Se concentrations in water that exceeded the EPA Ecotox threshold of 5 mu g/L and were classified as a high hazard for Se accumulation from water into the planktonic food chain and for resultant toxicity to fish and aquatic birds. Concentrations of As, Cd, Cu, Hg, Ni, Pb, and Zn in sediment exceeded EPA Ecotox thresholds in one or more of the watersheds suggesting potential adverse ecological effects. Sediment from Rubicon Creek, a tributary of Spearfish Creek, contained Se concentrations high enough (4.0 mu g/g) to be a moderate hazard for accumulation from sediments into the benthic food chain, with resultant dietary toxicity to fish and aquatic birds. These results are discussed in light of historical mining activities and recent clean-up and reclamation efforts. Based on the results and comparisons to Ecotox thresholds, further studies of ecological effects are warranted. JF - Archives of Environmental Contamination and Toxicology AU - May, T W AU - Wiedmeyer, R H AU - Gober, J AU - Larson, S AD - United States Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, Missouri 65201-9634, USA Y1 - 2000/11// PY - 2000 DA - Nov 2000 SP - 1 EP - 9 VL - 39 IS - 4 SN - 0090-4341, 0090-4341 KW - Toxicology Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Food chains KW - USA, South Dakota, Spearfish Creek KW - Heavy metals KW - USA, South Dakota, Whitewood Creek KW - Copper KW - Freshwater KW - Watersheds KW - Toxicity tests KW - Lead KW - Gold KW - Cadmium KW - Pollution indicators KW - Tributaries KW - Freshwater pollution KW - Metals KW - Water Pollution Effects KW - USA, South Dakota, Black Hills KW - Birds KW - Mining KW - Streams KW - Hazards KW - Selenium KW - Zinc KW - USA, South Dakota KW - Sediment pollution KW - Arsenic KW - USA, California, Butte Creek KW - Toxicity KW - Sediments KW - Water pollution KW - Bioaccumulation KW - Environmental conditions KW - Drinking water KW - Pollution control KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - Q2 09187:Geochemistry of sediments KW - SW 3060:Water treatment and distribution KW - AQ 00008:Effects of Pollution KW - X 24360:Metals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19427079?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+Environmental+Contamination+and+Toxicology&rft.atitle=Influence+of+Mining-Related+Activities+on+Concentrations+of+Metals+in+Water+and+Sediment+from+Streams+of+the+Black+Hills%2C+South+Dakota&rft.au=May%2C+T+W%3BWiedmeyer%2C+R+H%3BGober%2C+J%3BLarson%2C+S&rft.aulast=May&rft.aufirst=T&rft.date=2000-11-01&rft.volume=39&rft.issue=4&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Archives+of+Environmental+Contamination+and+Toxicology&rft.issn=00904341&rft_id=info:doi/10.1007%2Fs002440010142 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-04-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Metals; Sediment pollution; Arsenic; Watersheds; Toxicity tests; Water pollution; Hazards; Bioaccumulation; Cadmium; Mining; Tributaries; Pollution indicators; Pollution control; Food chains; Heavy metals; Toxicity; Copper; Streams; Sediments; Lead; Zinc; Gold; Drinking water; Selenium; Environmental conditions; Freshwater pollution; Water Pollution Effects; Birds; USA, South Dakota; USA, South Dakota, Spearfish Creek; USA, California, Butte Creek; USA, South Dakota, Black Hills; USA, South Dakota, Whitewood Creek; Freshwater DO - http://dx.doi.org/10.1007/s002440010142 ER - TY - JOUR T1 - MOVEMENT PATTERNS OF RIPARIAN SMALL MAMMALS DURING PREDICTABLE FLOODPLAIN INUNDATION AN - 19396320; 8696699 AB - We monitored movements of small mammals resident on floodplains susceptible to spring floods to assess whether and how these animals respond to habitat inundation. The 2 floodplains were associated with 6th order river segments in a semiarid landscape; each was predictably inundated each year as snowmelt progressed in headwater areas of the Rocky Mountains. Data from live trapping, radiotelemetry, and microtopographic surveys indicated that Peromyscus maniculatus, Microtus montanus, and Dipodomys ordii showed different responses to inundation, but all reflected a common tendency to remain in the original home range until 'forced' to leave. The reluctance of Dipodomys ordii to abandon the home burrow often resulted in death in situ, whereas individual P. maniculatus and M. montanus moved to nearby higher ground but not necessarily toward upland. This behavior could lead to occupancy of an island that disappeared as floodwaters rose. Peromyscus maniculatus climbed into sapling cottonwood, but the quality of such arboreal refuges was unclear. We found only weak support for the hypothesis that displacement was temporary; most floodplain residents, including P. maniculatus, disappeared over the flood period. No secondary effect from flooding on adjacent upland small-mammal assemblages was detected. Our data suggest populations of facultatively riparian, nonarboreal small mammals such as M. montanus and D. ordii generally experience habitat inundation as a catastrophy. Terrestrial species capable of using an arboreal refuge, such as P. maniculatus, face a more variable risk, determined in part by timing and duration of the flood event. River regulation can affect both sets of risks. JF - Journal of Mammalogy AU - Andersen, Douglas C AU - Wilson, Kenneth R AU - Miller, Michael S AU - Falck, Miles AD - United States Geological Survey, Midcontinent Ecological Science Center, co United States Bureau of Reclamation, D-8220, P.O. Box 25007, Denver, CO 80225 (DCA), dandersen@do.usbr.gov Y1 - 2000/11// PY - 2000 DA - Nov 2000 SP - 1087 EP - 1099 PB - Allen Press, Inc., 810 East Tenth St. VL - 81 IS - 4 SN - 0022-2372, 0022-2372 KW - Ecology Abstracts; Animal Behavior Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - aridland river KW - Dipodomys ordii KW - Microtus montanus KW - Peromyscus maniculatus KW - behavior KW - flooding KW - floodplain KW - riparian KW - Rivers KW - Data processing KW - Refuges KW - Landscape KW - Freshwater KW - Habitat KW - Trapping KW - Burrows KW - North America, Rocky Mts. KW - Burrowing organisms KW - Islands KW - Flood plains KW - Mammalogy KW - Floods KW - Flooding KW - Environmental effects KW - Zoobenthos KW - Y 25150:General/Miscellaneous KW - D 04040:Ecosystem and Ecology Studies KW - Q2 09171:Dynamics of lakes and rivers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19396320?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Mammalogy&rft.atitle=MOVEMENT+PATTERNS+OF+RIPARIAN+SMALL+MAMMALS+DURING+PREDICTABLE+FLOODPLAIN+INUNDATION&rft.au=Andersen%2C+Douglas+C%3BWilson%2C+Kenneth+R%3BMiller%2C+Michael+S%3BFalck%2C+Miles&rft.aulast=Andersen&rft.aufirst=Douglas&rft.date=2000-11-01&rft.volume=81&rft.issue=4&rft.spage=1087&rft.isbn=&rft.btitle=&rft.title=Journal+of+Mammalogy&rft.issn=00222372&rft_id=info:doi/10.1644%2F1545-1542%282000%290812.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-12-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Burrowing organisms; Rivers; Refuges; Flood plains; Mammalogy; Environmental effects; Flooding; Zoobenthos; Burrows; Islands; Data processing; Floods; Landscape; Habitat; Trapping; Microtus montanus; Peromyscus maniculatus; Dipodomys ordii; North America, Rocky Mts.; Freshwater DO - http://dx.doi.org/10.1644/1545-1542(2000)081<1087:MPORSM>2.0.CO;2 ER - TY - JOUR T1 - Effects of dietary polychlorinated biphenyl exposure on energetics of white-footed mouse, Peromyscus leucopus AN - 18649911; 5549422 AB - Energy budgets have provided physiological ecologists with a vital link between environmental variables and individual performance and should also prove useful to ecotoxicologists in understanding the effects of sublethal exposure in the field. Exposure to toxic compounds is likely to be metabolically expensive and may result in a trade-off between energy spent to detoxify and excrete contaminants and energy allocated to growth or reproduction. To quantify the energetic cost of polychlorinated biphenyl (PCB) exposure, we fed captive white-footed mice (Peromyscus leucopus) diets containing PCBs (2:1 Aroclor super(R) 1242:1254) at levels of 0, 0.1, 10, and 25 ppm (mg PCBs/kg food). After six weeks on the diets, there were no differences in food intake (g/d), diet digestibility (%), or body mass related to the level of dietary PCBs. This indicated that short-term exposure to PCBs did not cause a detectable increase in energy need as measured by voluntary food intake. We continued to feed mice the PCB-containing diets for one year, at which time we repeated the food intake trial, and also measured oxygen consumption at 20 and 30 degree C. After one year, all mice had gained mass, but mice on the 25-ppm diet tended to be heavier than mice in the other groups. Compared to the control group, mice on the 25-ppm diet had higher food intake (4.1 vs 3.7 g/d; p = 0.06) and higher oxygen consumption at 30 degree C (40.1 vs 36.6 ml O sub(2)/h; p = 0.01). These results suggest that there is an energetic cost to long-term contaminant exposure that, when combined with other environmental stresses, may influence patterns of energy acquisition and allocation. JF - Environmental Toxicology and Chemistry AU - Voltura, M B AU - French, JB Jr AD - USGS Patuxent Wildlife Research Center, 11510 American Holly Drive, Laurel, Maryland 20708, USA Y1 - 2000/11// PY - 2000 DA - Nov 2000 SP - 2757 EP - 2761 VL - 19 IS - 11 SN - 0730-7268, 0730-7268 KW - White-footed mouse KW - Toxicology Abstracts KW - X 24190:Polycyclic hydrocarbons UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18649911?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Effects+of+dietary+polychlorinated+biphenyl+exposure+on+energetics+of+white-footed+mouse%2C+Peromyscus+leucopus&rft.au=Voltura%2C+M+B%3BFrench%2C+JB+Jr&rft.aulast=Voltura&rft.aufirst=M&rft.date=2000-11-01&rft.volume=19&rft.issue=11&rft.spage=2757&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Influence of Acid Volatile Sulfide and Metal Concentrations on Metal Bioavailability to Marine Invertebrates in Contaminated Sediments AN - 18028997; 4875862 AB - An 18-day microcosm study was conducted to evaluate the influence of acid volatile sulfides (AVS) and metal additions on bioaccumulation from sediments of Cd, Ni, and Zn in two clams (Macoma balthica and Potamocorbula amurensis) and three marine polychaetes (Neanthes arenaceodentata, Heteromastus filiformis, and Spiophanes missionensis). Manipulation of AVS by oxidation of naturally anoxic sediments allowed use of metal concentrations typical of nature and evaluation of processes important to chronic metal exposure. A vertical sediment column similar to that often found in nature was used to facilitate realistic biological behavior. Results showed that AVS or porewater (PW) metals controlled bioaccumulation in only 2 of 15 metal-animal combinations. Bioaccumulation of all three metals by the bivalves was related significantly to metal concentrations extracted from sediments (SEM) but not to [SEM - AVS] or PW metals. SEM predominantly influenced bioaccumulation of Ni and Zn in N. arenaceodentata, but Cd bioaccumulation followed PW Cd concentrations. SEM controlled tissue concentrations of all three metals in H. filiformis and S. missionensis, with minor influences from metal-sulfide chemistry. Significant bioaccumulation occurred when SEM was only a small fraction of AVS in several treatments. Three factors appeared to contribute to the differences between these bioaccumulation results and the results from toxicity tests reported previously: differences in experimental design, dietary uptake, and biological attributes of the species, including mode and depth of feeding. JF - Environmental Science & Technology AU - Lee, B-G AU - Lee, J-S AU - Luoma, S N AU - Choi, HJ AU - Koh, C-H AD - U.S. Geological Survey, Water Resources Division, Mail Stop 465, 345 Middlefield Road, Menlo Park, California 94025, USA, bglee@usgs.gov Y1 - 2000/11/01/ PY - 2000 DA - 2000 Nov 01 SP - 4517 EP - 4523 VL - 34 IS - 21 SN - 0013-936X, 0013-936X KW - Baltic macoma KW - acid volatile sulfides KW - Pollution Abstracts; Toxicology Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Bivalves (Clams) KW - Heavy metals KW - Nickel KW - Invertebrates KW - Potamocorbula amurensis KW - Heteromastus filimormis KW - Zinc KW - Sediment Contamination KW - Worms (Annelid) (Polychaeta) KW - Cadmium KW - Microcosms KW - Biological availability KW - Macoma balthica KW - Metals KW - Sediment pollution KW - Sulfides KW - Interstitial waters KW - Contaminated sediments KW - Heteromastus filiformis KW - Neanthes arenaceodentata KW - Clams KW - Bivalvia KW - Bioaccumulation KW - Spiophanes missionensis KW - Water Pollution Effects KW - Marine organisms KW - Contamination (see also Pollution) KW - Toxicity (see also Lethal limits) KW - Polychaetes KW - P 1000:MARINE POLLUTION KW - SW 3030:Effects of pollution KW - AQ 00008:Effects of Pollution KW - X 24163:Metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18028997?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Influence+of+Acid+Volatile+Sulfide+and+Metal+Concentrations+on+Metal+Bioavailability+to+Marine+Invertebrates+in+Contaminated+Sediments&rft.au=Lee%2C+B-G%3BLee%2C+J-S%3BLuoma%2C+S+N%3BChoi%2C+HJ%3BKoh%2C+C-H&rft.aulast=Lee&rft.aufirst=B-G&rft.date=2000-11-01&rft.volume=34&rft.issue=21&rft.spage=4517&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Metals; Bioaccumulation; Heavy metals; Zinc; Nickel; Marine organisms; Cadmium; Microcosms; Bivalvia; Sulfides; Biological availability; Bivalves (Clams); Worms (Annelid) (Polychaeta); Interstitial waters; Contamination (see also Pollution); Toxicity (see also Lethal limits); Contaminated sediments; Water Pollution Effects; Sediment Contamination; Invertebrates; Polychaetes; Clams; Potamocorbula amurensis; Macoma balthica; Heteromastus filimormis; Spiophanes missionensis; Neanthes arenaceodentata; Heteromastus filiformis ER - TY - JOUR T1 - Bioavailability of Particle-Associated Se to the Bivalve Potamocorbula amurensis AN - 18025117; 4875860 AB - Elemental selenium, Se(0), is a prevalent chemical form in sediments, but little is known about its bioavailability. We evaluated the bioavailability of two forms of Se(0) by generating radioisotopic super(75)Se(0) through bacterial dissimilatory reduction of super(75)SeO super(2) sub(3) super(-) by pure bacterial cultures (SES) and by an anaerobic sediment microbial consortium (SED). A third form was generated by reducing super(75)SeO super(2) sub(3) super(-) with ascorbic acid (AA). Speciation determinations showed that AA and SES were >90% Se(0), but SED showed a mixture of Se(0), selenoanions, and a residual fraction. Pulsechase techniques were used to measure assimilation efficiencies (AE) of these particulate Se forms by the bivalve Potamocorbula amurensis. Mean AE values were 3 plus or minus 2% for AA, 7 plus or minus 1% for SES, and 28 plus or minus 15% for SED, showing that the bioavailability of reduced, particle-associated Se is dependent upon its origin. To determine if oxidative microbial processes increased Se transfer, SES super(75)Se(0) was incubated with an aerobic sediment microbial consortium. After 113 d of incubation, 36% of SES Se(0) was oxidized to SeO super(2) sub(3) super(-). Assimilation of total particulate Se was unaffected however (mean AE = 5.5%). The mean AE from the diatom Phaeodactylum tricornutum was 58 plus or minus 8%, verifying the importance of Se associated with biogenic particles. Speciation and AE results from SED suggest that selenoanion reduction in wetlands and estuaries produces biologically available reduced selenium. JF - Environmental Science & Technology AU - Schlekat, CE AU - Dowdle, PR AU - Lee, B-G AU - Luoma, S N AU - Oremland, R S AD - Water Resources Division, U.S. Geological Survey, 345 Middlefield Road, MS 465, Menlo Park, California 94025, USA, cschleka@usgs.gov Y1 - 2000/11/01/ PY - 2000 DA - 2000 Nov 01 SP - 4504 EP - 4510 VL - 34 IS - 21 SN - 0013-936X, 0013-936X KW - bioavailability KW - Pollution Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Aqualine Abstracts; Water Resources Abstracts; Toxicology Abstracts KW - Water Pollution KW - Aquatic organisms KW - Diatoms KW - Pollution effects KW - Particulates KW - Potamocorbula amurensis KW - Bioavailability KW - Reduction KW - Selenium KW - Phaeodactylum tricornutum KW - Chemical speciation KW - Assimilation KW - Wetlands KW - Mollusks KW - Biological availability KW - Bacteria KW - Sediment pollution KW - Estuaries KW - Toxicity KW - Bivalves (see also molluscs, Individual groups) KW - Sediments KW - Bivalvia KW - Aquatic microorganisms KW - Bioaccumulation KW - Toxicity (see also Lethal limits) KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - Q1 08266:Physiology, biochemistry, biophysics KW - P 1000:MARINE POLLUTION KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution KW - AQ 00008:Effects of Pollution KW - X 24163:Metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18025117?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Bioavailability+of+Particle-Associated+Se+to+the+Bivalve+Potamocorbula+amurensis&rft.au=Schlekat%2C+CE%3BDowdle%2C+PR%3BLee%2C+B-G%3BLuoma%2C+S+N%3BOremland%2C+R+S&rft.aulast=Schlekat&rft.aufirst=CE&rft.date=2000-11-01&rft.volume=34&rft.issue=21&rft.spage=4504&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Selenium; Bioaccumulation; Chemical speciation; Pollution effects; Wetlands; Aquatic microorganisms; Bacteria; Reduction; Bioavailability; Diatoms; Sediments; Bivalvia; Aquatic organisms; Particulates; Biological availability; Estuaries; Assimilation; Bivalves (see also molluscs, Individual groups); Toxicity (see also Lethal limits); Water Pollution; Toxicity; Mollusks; Potamocorbula amurensis; Phaeodactylum tricornutum ER - TY - JOUR T1 - Influence of Acid Volatile Sulfides and Metal Concentrations on Metal Partitioning in Contaminated Sediments AN - 18016654; 4875861 AB - The influence of acid volatile sulfide (AVS) on the partitioning of Cd, Ni, and Zn in porewater (PW) and sediment as reactive metals (SEM, simultaneously extracted metals) was investigated in laboratory microcosms. Two spiking procedures were compared, and the effects of vertical geochemical gradients and infaunal activity were evaluated. Sediments were spiked with a Cd-Ni-Zn mixture (0.06, 3, 7.5 mu mol/g, respectively) containing four levels of AVS (0.5, 7.5, 15, 35 mu mol/g). The results were compared to sediments spiked with four levels of Cd-Ni-Zn mixtures at one AVS concentration (7.5 mu mol/g). A vertical redox gradient was generated in each treatment by an 18-d incubation with an oxidized water column. [AVS] in the surface sediments decreased by 65-95% due to oxidation during incubation; initial [AVS] was maintained at 0.5-7.5 cm depth. PW metal concentrations were correlated with [SEM - AVS] among all data. But PW metal concentrations were variable, causing the distribution coefficient, Kd sub(pw) (the ratio of [SEM] to PW metal concentrations) to vary by 2-3 orders of magnitude at a given [SEM - AVS]. One reason for the variability was that vertical profiles in PW metal concentrations appeared to be influenced by diffusion as well as [SEM - AVS]. The presence of animals appeared to enhance the diffusion of at least Zn. The generalization that PW metal concentrations are controlled by [SEM - AVS] is subject to some important qualifications if vertical gradients are complicated, metal concentrations vary, or equilibration times differ. JF - Environmental Science & Technology AU - Lee, J-S AU - Lee, B-G AU - Luoma, S N AU - Choi, HJ AU - Koh, C-H AU - Brown, CL AD - U.S. Geological Survey, Water Resources Division, Mail Stop 465, 345 Middlefield Road, Menlo Park, California 94025, USA, bglee@usgs.gov Y1 - 2000/11/01/ PY - 2000 DA - 2000 Nov 01 SP - 4511 EP - 4516 VL - 34 IS - 21 SN - 0013-936X, 0013-936X KW - Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Aqualine Abstracts KW - Pore water KW - Path of Pollutants KW - Heavy metals KW - Nickel KW - Benthic Fauna KW - Volatile Acids KW - Sulphides KW - Distribution (Mathematical) KW - Zinc KW - Sediment Contamination KW - Cadmium KW - Diffusion KW - Acidity KW - Experimental Data KW - Metals KW - Sediment pollution KW - Sulfides KW - Geochemistry KW - Vertical Distribution KW - Interstitial waters KW - Interstitial Water KW - Contaminated sediments KW - Aquatic environment KW - Chemical reactions KW - Oxidation KW - Benthos KW - Q5 08503:Characteristics, behavior and fate KW - P 1000:MARINE POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18016654?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Influence+of+Acid+Volatile+Sulfides+and+Metal+Concentrations+on+Metal+Partitioning+in+Contaminated+Sediments&rft.au=Lee%2C+J-S%3BLee%2C+B-G%3BLuoma%2C+S+N%3BChoi%2C+HJ%3BKoh%2C+C-H%3BBrown%2C+CL&rft.aulast=Lee&rft.aufirst=J-S&rft.date=2000-11-01&rft.volume=34&rft.issue=21&rft.spage=4511&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sulphides; Sediment pollution; Pore water; Chemical reactions; Heavy metals; Geochemistry; Zinc; Nickel; Sulfides; Diffusion; Cadmium; Aquatic environment; Metals; Distribution (Mathematical); Oxidation; Interstitial waters; Acidity; Contaminated sediments; Benthos; Experimental Data; Path of Pollutants; Vertical Distribution; Sediment Contamination; Benthic Fauna; Interstitial Water; Volatile Acids ER - TY - JOUR T1 - Seasonal Movement and Habitat Use by Striped Bass in the Combahee River, South Carolina AN - 17847828; 4871853 AB - striped bass Morone saxatilis (N = 30, 656-906 mm total length) were captured by electrofishing during January-March 1998 in the Combahee River, South Carolina, and fitted with radio transmitters. Their exact locations were recorded biweekly through December. From January to early April, striped bass were located in the tidally influenced lower region of the river in water temperatures ranging from 9 degree C to 18 degree C. The fish then moved an average of 38.5 km upstream from late April to the end of May when water temperatures ranged from 18 degree C to 26 degree C. Striped bass remained in the upper region of the river from late May to September when water temperatures were as much as 5 degree C lower than in the river's lower regions. Striped bass began to move downstream and were spread throughout the river during September and October in water temperatures ranging from 19 degree C to 27 degree C. Combahee River striped bass appear to follow a migratory pattern typical of other southern striped bass stocks. Habitat preference appears to be strongly influenced by temperature. Combahee River temperatures are stable and remain close to the preferred temperatures of striped bass during summer extremes. Therefore, unlike northern populations, southern populations are more likely to remain within riverine habitat during the summer months. Discrete thermal refugia, such as springs, apparently are not used or are absent in the Combahee River. It is possible that striped bass in the Combahee River depend on the entire upper region of the river as a thermal refuge. JF - Transactions of the American Fisheries Society AU - Bjorgo, KA AU - Isely, J J AU - Thomason, C S AD - United States Geological Survey, Biological Resources Division, South Carolina Cooperative Fish and Wildlife Research Unit, Department of Aquaculture, Fisheries, and Wildlife, Clemson University, Clemson, South Carolina 29634-0372, USA, jisely@clemson.edu Y1 - 2000/11// PY - 2000 DA - Nov 2000 SP - 1281 EP - 1287 VL - 129 IS - 6 SN - 0002-8487, 0002-8487 KW - Rockfish KW - Striped bass KW - USA, South Carolina KW - Animal Behavior Abstracts; Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Rivers KW - Local movements KW - USA, South Carolina, Combahee R. basin KW - Morone saxatilis KW - Movements KW - Habitat utilization KW - Seasonal distribution KW - Habitat KW - Seasonal variations KW - Q1 08421:Migrations and rhythms KW - Y 25655:Fish KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17847828?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Seasonal+Movement+and+Habitat+Use+by+Striped+Bass+in+the+Combahee+River%2C+South+Carolina&rft.au=Bjorgo%2C+KA%3BIsely%2C+J+J%3BThomason%2C+C+S&rft.aulast=Bjorgo&rft.aufirst=KA&rft.date=2000-11-01&rft.volume=129&rft.issue=6&rft.spage=1281&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Rivers; Local movements; Seasonal distribution; Habitat; Movements; Habitat utilization; Seasonal variations; Morone saxatilis; USA, South Carolina, Combahee R. basin ER - TY - JOUR T1 - Ictalurid Populations in Relation to the Presence of a Main-Stem Reservoir in a Midwestern Warmwater Stream with Emphasis on the Threatened Neosho Madtom AN - 17844330; 4871852 AB - Ictalurid populations, including those of the Neosho madtom Noturus placidus, have been monitored in the Neosho River basin since the U.S. Fish and Wildlife Service listed the Neosho madtom as threatened in 1991. The Neosho madtom presently occurs only in the Neosho River basin, whose hydrologic regime, physical habitat, and water quality have been altered by the construction and operation of reservoirs. Our objective was to assess changes in ictalurid densities, habitat, water quality, and hydrology in relation to the presence of a main-stem reservoir in the Neosho River basin. Study sites were characterized using habitat quality as measured by substrate size, water quality as measured by standard physicochemical measures, and indicators of hydrologic alteration (IHA) as calculated from stream gauge information from the U.S. Geological Survey. Site estimates of ictalurid densities were collected by the U.S. Fish and Wildlife Service annually from 1991 to 1998, with the exception of 1993. Water quality and habitat measurements documented reduced turbidity and altered substrate composition in the Neosho River basin below John Redmond Dam. The effects of the dam on flow were indicated by changes in the short- and long-term minimum and maximum flows. Positive correlations between observed Neosho madtom densities and increases in minimum flow suggest that increased minimum flows could be used to enhance Neosho madtom populations. Positive correlations between Neosho madtom densities and increased flows in the winter and spring months as well as the date of the 1-d annual minimum flow indicate the potential importance of the timing of increased flows to Neosho madtoms. Because of the positive relationships that we found between the densities of Neosho madtoms and those of channel catfish Ictalurus punctatus, stonecats Noturus flavus, and other catfishes, alterations in flow that benefit Neosho madtom populations will probably benefit other members of the benthic fish community of the Neosho River. JF - Transactions of the American Fisheries Society AU - Wildhaber, M L AU - Tabor, V M AU - Whitaker, JE AU - Allert, AL AU - Mulhern, D W AU - Lamberson, P J AU - Powell, K L AD - U.S. Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, Missouri 65201, USA, mark_wildhaber@usgs.gov Y1 - 2000/11// PY - 2000 DA - Nov 2000 SP - 1264 EP - 1280 VL - 129 IS - 6 SN - 0002-8487, 0002-8487 KW - Channel catfish KW - Graceful catfish KW - Neosho madtom KW - Stonecat KW - USA, Kansas KW - USA, Missouri, Neosho R. basin KW - USA, Oklahoma KW - Aqualine Abstracts; Water Resources Abstracts; Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality KW - Environmental Effects KW - Discharge KW - Noturus placidus KW - Water Management KW - Water reservoirs KW - Pollution (Environmental) KW - Alteration of Flow KW - Aquatic Animals KW - Streams KW - Ictalurus punctatus KW - Dams KW - Stream flow rate KW - Noturus flavus KW - Discharge Measurement KW - Reservoirs KW - Rivers KW - Environmental impact KW - Streamflow KW - Rare species KW - Fish (Catfish families) KW - Habitat KW - Population statistics KW - Stream flow KW - Water management KW - Population Density KW - Fish Populations KW - Environmental conditions KW - Water quality (Natural waters) KW - AQ 00001:Water Resources and Supplies KW - Q5 08523:Conservation, wildlife management and recreation KW - SW 4070:Ecological impact of water development KW - Q1 08341:General KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17844330?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Ictalurid+Populations+in+Relation+to+the+Presence+of+a+Main-Stem+Reservoir+in+a+Midwestern+Warmwater+Stream+with+Emphasis+on+the+Threatened+Neosho+Madtom&rft.au=Wildhaber%2C+M+L%3BTabor%2C+V+M%3BWhitaker%2C+JE%3BAllert%2C+AL%3BMulhern%2C+D+W%3BLamberson%2C+P+J%3BPowell%2C+K+L&rft.aulast=Wildhaber&rft.aufirst=M&rft.date=2000-11-01&rft.volume=129&rft.issue=6&rft.spage=1264&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Rivers; Water reservoirs; Water management; Stream flow rate; Environmental impact; Rare species; Environmental conditions; Streams; Reservoirs; Discharge; Pollution (Environmental); Dams; Habitat; Fish (Catfish families); Water quality (Natural waters); Population statistics; Stream flow; Environmental Effects; Water Management; Population Density; Alteration of Flow; Aquatic Animals; Streamflow; Fish Populations; Discharge Measurement; Noturus placidus; Noturus flavus; Ictalurus punctatus ER - TY - JOUR T1 - Reduction in Recruitment of White Bass in Lake Erie after Invasion of White Perch AN - 17843387; 4871858 AB - Recruitment to the adult population of white bass Morone chrysops in Lake Erie sharply declined during the early 1980s. To explain this phenomenon, we formulated the following four hypotheses: (1) the biological characteristics of adult spawners changed during the early 1980s, so that the ability to produce eggs decreased; (2) the decrease in phosphorus loadings to Lake Erie during the 1970s resulted in a lower abundance of crustacean zooplankton and thus in reduced survival of age-0 white bass; (3) the increase in the population of adult walleyes Stizostedion vitreum in Lake Erie during the 1970s and 1980s led to reduced survival of age-0 white bass; and (4) establishment of the white perch Morone americana population in Lake Erie during the early 1980s led to reduced survival of the early life stages of white bass. The growth, maturity, and fecundity of adults during the period 1981-1997 were compared with the same characteristics found by earlier studies. The mean length, weight, and condition factors that we calculated were higher than those reported for Lake Erie in 1927-1929 for all age groups examined, and white bass in Lake Erie matured at an earlier age during 1981-1997 than during 1927-1929. Fecundity estimates ranged from 128,897 to 1,049,207 eggs/female and were similar to estimates from other populations. Therefore, the first hypothesis was rejected. With respect to the second hypothesis, zooplankton surveys conducted during 1970 and 1983-1987 indicated that the abundance of crustacean zooplankton in Lake Erie did not change between the two time periods. However, these results were not conclusive because only a single-year survey was conducted before 1980. Based on walleye diet studies and estimates of walleye population size, walleye predation pressure on age-0 white bass in Lake Erie during 1986-1988 was just slightly higher than that during 1979-1981. Thus, such pressure can explain only a minor portion of the reduction in white bass recruitment. To test the fourth hypothesis, intervention analysis was applied to the long-term abundance series for white bass. The abundance of age-0 white bass in Lake Erie between 1982 and 1997 was significantly lower than that between 1969 and 1981. The catch per unit effort of adult white bass in commercial trap nets between 1987 and 1997 was significantly lower than it was before 1987. Moreover, the period of reduced recruitment for white bass in Oneida Lake, New York, which extends from 1955 to the present, coincides with occupation of the lake by white perch. Thus, of the four hypotheses entertained, the most plausible explanation for the reduction in white bass recruitment in Lake Erie is that white perch reduced the survival of white bass during its early life history. JF - Transactions of the American Fisheries Society AU - Madenjian, C P AU - Knight, R L AU - Bur, M T AU - Forney, J L AD - U.S. Geological Survey, Great Lakes Science Center, 1451 Green Road, Ann Arbor, Michigan 48105, USA, chuck_madenjian@usgs.gov Y1 - 2000/11// PY - 2000 DA - Nov 2000 SP - 1340 EP - 1353 VL - 129 IS - 6 SN - 0002-8487, 0002-8487 KW - North America, Erie L. KW - Walleye KW - White bass KW - White perch KW - ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Morone chrysops KW - Recruitment KW - Stizostedion vitreum KW - Population dynamics KW - Growth KW - Morone americana KW - Fecundity KW - Sexual maturity KW - Invasions KW - USA, Erie L. KW - Introduced species KW - Competition KW - Q1 08442:Population dynamics KW - D 04668:Fish KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17843387?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Reduction+in+Recruitment+of+White+Bass+in+Lake+Erie+after+Invasion+of+White+Perch&rft.au=Madenjian%2C+C+P%3BKnight%2C+R+L%3BBur%2C+M+T%3BForney%2C+J+L&rft.aulast=Madenjian&rft.aufirst=C&rft.date=2000-11-01&rft.volume=129&rft.issue=6&rft.spage=1340&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Growth; Fecundity; Sexual maturity; Introduced species; Population dynamics; Competition; Recruitment; Invasions; Morone americana; Morone chrysops; Stizostedion vitreum; USA, Erie L. ER - TY - JOUR T1 - Estimating effects of constraints on plant performance with regression quantiles AN - 17770683; 4822951 AB - Rates of change in final summer densities of two desert annuals, Eriogonum abertianum and Haplopappus gracilis, as constrained by their initial winter germination densities were estimated with regression quantiles and compared with mechanistic fits based on a self-thinning rule proposed by Guo et al. (1998). The allometric relation used was equivalent to S = N sub(f) (N sub(i)) super(-1) = c sub(f) (N sub(i)) super(-1), where S is the ratio of final to initial densities (survivorship), c sub(f) is a constant that is a final density specific to the species and environment, N sub(i) is the initial plant density, and N sub(f) is final plant density. We used regression quantiles to estimate c sub(f) assuming the exponent of -1 was fixed (model 1, N sub(f) (N sub(i)) super(-1) = c sub(f) (N sub(i)) super(-1)) and also obtained estimates by treating the exponent as a parameter to estimate (model 2, N sub(f) (N sub(i)) super(-1) = c sub(f) (N sub(i)) super( lambda )). Regression quantiles allow rates of change to be estimated through any part of a data distribution conditional on some linear function of covariates. We focused on estimates for upper (90-99th) quantiles near the boundary of the summer density distributions where we expected effects of self-thinning to operate as the primary constraint on plant performance. Allometric functions estimated with regression quantiles were similar to functions fit by Guo et al. (1998) when the exponent was constrained to -1. However, the data were more consistent with estimates for model (2), where exponents were closer to -0.4 than -1, although model fit was not as good at higher initial plant densities as when the exponent was fixed at -1. An exponential form (model 3, N sub(f) (N sub(i)) super(-1) = c sub(f) (N sub(i)) super( lambda )e super( gamma N[sub]i)) that is a generalization of the discrete logistic growth function, where estimates of lambda were -0.23 to -0.28 and estimates of gamma were -0.003 to -0.006, provided better fit from low to high initial germination densities. Model 3 predictions were consistent with an interpretation that final summer densities were constrained by initial germination densities when these were low (< 40 per 0.25 m super(2) for Eriogonum and < 100 per 0.25 m super(2) for Haplopappus) and were constrained by the self-thinning process at higher germination densities. Our exponential model (3) estimated with regression quantiles had similar form to the mechanistic relation of Guo et al. (1998) when plotted as a survivorship function, but avoided the unrealistic assumption that all populations attained a similar final density, and was based on a statistical model that has formal rules for estimation and inference. JF - Oikos AU - Cade, B S AU - Guo, Qinfeng AD - Midcontinent Ecological Science Center, U.S. Geological Survey, 4512 McMurry Ave., Fort Collins, CO 80525-3400, USA, brian_cade@usgs.gov Y1 - 2000/11// PY - 2000 DA - Nov 2000 SP - 245 EP - 254 VL - 91 IS - 2 SN - 0030-1299, 0030-1299 KW - Ecology Abstracts KW - Haplopappus gracilis KW - Population density KW - Plants KW - Eriogonum abertianum KW - Models KW - D 04640:Other angiosperms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17770683?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Oikos&rft.atitle=Estimating+effects+of+constraints+on+plant+performance+with+regression+quantiles&rft.au=Cade%2C+B+S%3BGuo%2C+Qinfeng&rft.aulast=Cade&rft.aufirst=B&rft.date=2000-11-01&rft.volume=91&rft.issue=2&rft.spage=245&rft.isbn=&rft.btitle=&rft.title=Oikos&rft.issn=00301299&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Eriogonum abertianum; Haplopappus gracilis; Plants; Population density; Models ER - TY - JOUR T1 - Mercury mine drainage and processes that control its environmental impact. AN - 72332084; 11032116 AB - Mine drainage from mercury mines in the California Coast Range mercury mineral belt is an environmental concern because of its acidity and high sulfate, mercury, and methylmercury concentrations. Two types of mercury deposits are present in the mineral belt, silica-carbonate and hot-spring type. Mine drainage is associated with both deposit types but more commonly with the silica-carbonate type because of the extensive underground workings present at these mines. Mercury ores consisting primarily of cinnabar were processed in rotary furnaces and retorts and elemental mercury recovered from condensing systems. During the roasting process mercury phases more soluble than cinnabar are formed and concentrated in the mine tailings, commonly termed calcines. Differences in mineralogy and trace metal geochemistry between the two deposit types are reflected in mine drainage composition. Silica-carbonate type deposits have higher iron sulfide content than hot-spring type deposits and mine drainage from these deposits may have extreme acidity and very high concentrations of iron and sulfate. Mercury and methylmercury concentrations in mine drainage are relatively low at the point of discharge from mine workings. The concentration of both mercury species increases significantly in mine drainage that flows through and reacts with calcines. The soluble mercury phases in the calcines are dissolved and sulfate is added such that methylation of mercury by sulfate reducing bacteria is enhanced in calcines that are saturated with mine drainage. Where mercury mine drainage enters and first mixes with stream water, the addition of high concentrations of mercury and sulfate generates a favorable environment for methylation of mercury. Mixing of oxygenated stream water with mine drainage causes oxidation of dissolved iron(II) and precipitation of iron oxyhydroxide that accumulates in the streambed. Both mercury and methylmercury are strongly adsorbed onto iron oxyhydroxide over the pH range of 3.2-7.1 in streams impacted by mine drainage. The dissolved fraction of both mercury species is depleted and concentrated in iron oxyhydroxide such that the amount of iron oxyhydroxide in the water column reflects the concentration of mercury species. In streams impacted by mine drainage, mercury and methylmercury are transported and adsorbed onto particulate phases. During periods of low stream flow, fine-grained iron hydroxide sediment accumulates in the bed load of the stream and adsorbs mercury and methylmercury such that both forms of mercury become highly enriched in the iron oxyhydroxide sediment. During high-flow events, mercury- and methylmercury-enriched iron hydroxide sediment is transported into larger aquatic systems producing a high flux of bioavailable mercury. JF - The Science of the total environment AU - Rytuba, J J AD - US Geological Survey, Menlo Park, CA 94025, USA. jrytuba@usgs.gov Y1 - 2000/10/09/ PY - 2000 DA - 2000 Oct 09 SP - 57 EP - 71 VL - 260 IS - 1-3 SN - 0048-9697, 0048-9697 KW - Industrial Waste KW - 0 KW - Methylmercury Compounds KW - Water Pollutants, Chemical KW - Mercury KW - FXS1BY2PGL KW - Index Medicus KW - California KW - Seawater -- analysis KW - Methylmercury Compounds -- analysis KW - Water Pollutants, Chemical -- analysis KW - Mercury -- analysis KW - Industrial Waste -- analysis KW - Mining UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72332084?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Science+of+the+total+environment&rft.atitle=Mercury+mine+drainage+and+processes+that+control+its+environmental+impact.&rft.au=Rytuba%2C+J+J&rft.aulast=Rytuba&rft.aufirst=J&rft.date=2000-10-09&rft.volume=260&rft.issue=1-3&rft.spage=57&rft.isbn=&rft.btitle=&rft.title=The+Science+of+the+total+environment&rft.issn=00489697&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-11-02 N1 - Date created - 2000-10-16 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Geochemical, isotopic, and SHRIMP age data for Precambrian basement rocks, Permian volcanic rocks, and sedimentary host rocks to the ore-bearing intrusions, Noril'sk-Talnakh District, Siberian Russia AN - 52146880; 2002-013959 AB - Petrographic, geochemical, and isotopic data have been obtained for 33 samples selected to provide constraints on contamination models for the volcanic and intrusive components of the Late Permian to Early Triassic, Siberian flood-volcanic province. Twenty-one of these samples were carried from great depth in an explosive diatreme of Triassic age, whereas 12 were collected from drill core from depths of tens to 2000 m. The studied diatreme xenoliths are: (1) fragments of the crystalline basement; and (2) fragments of a basaltic-to-rhyolitic volcanic suite. Prompted by an unexpected, Late Paleozoic, Rb-Sr isochron age for this compositionally diverse volcanic suite, a SHRIMP U-Pb zircon age of approximately 270 Ma was obtained for a rhyodacite xenolith. Previously, a SHRIMP zircon U-Pb age of approximately 910 Ma had been determined for a leucogranite xenolith from the crystalline basement; this sample also contains substantial amounts of inherited, Early Proterozoic and Archean zircon. The presence of this volcanic suite, only approximately 20 m.y. older than the 251 Ma, flood-volcanic sequence, is an extremely provocative result, inasmuch as hundreds of exploration drill holes in the Noril'sk area, and throughout the Siberian platform, have encountered only Tungusskaya Series coal-bearing sedimentary rocks in this stratigraphic/time interval. These data support arguments that subduction/underthrusting from the West Siberian Lowland under the northwest margin of the Siberian craton took place in Late Permian time. The isotopic data obtained for the xenolith suite indicate that the upper part of the crystalline basement under the northwest margin of the Siberian craton is composed of Late Proterozoic (Riphean) rocks--alkaline granites, trondhjemites, crystalline schists, gneisses, and amphibolites--with much in common with rocks of the Central zone of the Taymyr folded area, which has been interpreted as an accretionary block formed and joined to Siberia in Late Riphean to Vendian time. Measured isotopic characteristics for the Precambrian crystalline basement, and the Paleozoic sedimentary rocks that host the ore-bearing intrusions in the Noril'sk region, provide parameters for quantitative modeling of crustal contamination during evolution of the Siberian flood-volcanic rocks and related intrusions, both while en route to the surface and at the site of intrusion emplacement. JF - International Geology Review AU - Czamanske, Gerald K AU - Wooden, Joseph L AU - Walker, Richard J AU - Fedorenko, Valeri A AU - Simonov, Oleg N AU - Budahn, James R AU - Siems, David F Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 895 EP - 927 PB - Winston & Son, Silver Spring, MD VL - 42 IS - 10 SN - 0020-6814, 0020-6814 KW - mineral exploration KW - volcanic rocks KW - ion probe data KW - isotopes KW - igneous rocks KW - mass spectra KW - Russian Federation KW - platinum group KW - Krasnoyarsk Russian Federation KW - sedimentary rocks KW - Commonwealth of Independent States KW - sampling KW - Siberian Platform KW - mineralization KW - spectra KW - mineral assemblages KW - Asia KW - Norilsk Russian Federation KW - geochemistry KW - Taymyr Dolgan-Nenets Russian Federation KW - Precambrian KW - Paleozoic KW - isotope ratios KW - basement KW - Permian KW - intrusions KW - SHRIMP data KW - metals KW - petrography KW - 03:Geochronology KW - 27A:Economic geology, geology of ore deposits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52146880?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Geology+Review&rft.atitle=Geochemical%2C+isotopic%2C+and+SHRIMP+age+data+for+Precambrian+basement+rocks%2C+Permian+volcanic+rocks%2C+and+sedimentary+host+rocks+to+the+ore-bearing+intrusions%2C+Noril%27sk-Talnakh+District%2C+Siberian+Russia&rft.au=Czamanske%2C+Gerald+K%3BWooden%2C+Joseph+L%3BWalker%2C+Richard+J%3BFedorenko%2C+Valeri+A%3BSimonov%2C+Oleg+N%3BBudahn%2C+James+R%3BSiems%2C+David+F&rft.aulast=Czamanske&rft.aufirst=Gerald&rft.date=2000-10-01&rft.volume=42&rft.issue=10&rft.spage=895&rft.isbn=&rft.btitle=&rft.title=International+Geology+Review&rft.issn=00206814&rft_id=info:doi/ L2 - http://www.informaworld.com/smpp/title~db=all~content=t902953900 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 49 N1 - PubXState - MD N1 - Document feature - illus. incl. 4 tables, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - IGREAP N1 - SubjectsTermNotLitGenreText - Asia; basement; Commonwealth of Independent States; geochemistry; igneous rocks; intrusions; ion probe data; isotope ratios; isotopes; Krasnoyarsk Russian Federation; mass spectra; metals; mineral assemblages; mineral exploration; mineralization; Norilsk Russian Federation; Paleozoic; Permian; petrography; platinum group; Precambrian; Russian Federation; sampling; sedimentary rocks; SHRIMP data; Siberian Platform; spectra; Taymyr Dolgan-Nenets Russian Federation; volcanic rocks ER - TY - JOUR T1 - Urban Sprawl Leaves Its PAH Signature AN - 19917471; 4807741 AB - The increasing vehicle traffic associated with urban sprawl in the United States is frequently linked to degradation of air quality, but its effect on aquatic sediment is less well-recognized. This study evaluates trends in PAHs, a group of contaminants with multiple urban sources, in sediment cores from 10 reservoirs and lakes in six U.S. metropolitan areas. The watersheds chosen represent a range in degree and age of urbanization. Concentrations of PAHs in all 10 reservoirs and lakes increased during the past 20-40 years. PAH contamination of the most recently deposited sediment at all sites exceeded sediment-quality guidelines established by Environment Canada, in some cases by several orders of magnitude. These results add a new chapter to the story told by previous coring studies that reported decreasing concentrations of PAHs after reaching highs in the 1950s. Concurrent with the increase in concentrations is a change in the assemblage of PAHs that indicates the increasing trends are driven by combustion sources. The increase in PAH concentrations tracks closely with increases in automobile use, even in watersheds that have not undergone substantial changes in urban land-use levels since the 1970s. JF - Environmental Science & Technology AU - Van Metre, PC AU - Mahler, B J AU - Furlong, E T AD - U.S. Geological Survey, 8027 Exchange Drive, Austin, TX 78754, USA, pcvanmet@usgs.gov Y1 - 2000/10/01/ PY - 2000 DA - 2000 Oct 01 SP - 4064 EP - 4070 VL - 34 IS - 19 SN - 0013-936X, 0013-936X KW - USA KW - Sustainability Science Abstracts; Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Water Resources Abstracts; Human Population KW - Land Use KW - Environmental degradation KW - Urban Watersheds KW - Historical account KW - Pollution (Air) KW - Urbanization KW - Combustion products KW - Motor vehicles KW - Watersheds KW - Lakes KW - Aromatic compounds KW - Catchment areas KW - Sediment Contamination KW - Aromatic hydrocarbons KW - Reservoirs KW - Urban areas KW - Freshwater pollution KW - Air Pollution KW - Sediment pollution KW - Polycyclic aromatic hydrocarbons KW - Fossil fuels KW - Hydrocarbons KW - Environmental impact KW - Contaminated sediments KW - Land use KW - Aromatic Compounds KW - Air pollution KW - Urban Areas KW - Hydrocarbon KW - Q5 08503:Characteristics, behavior and fate KW - M3 1010:Issues in Sustainable Development KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - M1 220:Human Population-Hydrosphere Interactions KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19917471?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Urban+Sprawl+Leaves+Its+PAH+Signature&rft.au=Van+Metre%2C+PC%3BMahler%2C+B+J%3BFurlong%2C+E+T&rft.aulast=Van+Metre&rft.aufirst=PC&rft.date=2000-10-01&rft.volume=34&rft.issue=19&rft.spage=4064&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2001-07-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Air pollution; Fossil fuels; Urbanization; Environmental impact; Aromatic hydrocarbons; Environmental degradation; Aromatic compounds; Motor vehicles; Watersheds; Land use; Historical account; Sediment pollution; Lakes; Polycyclic aromatic hydrocarbons; Combustion products; Reservoirs; Freshwater pollution; Pollution (Air); Catchment areas; Hydrocarbon; Contaminated sediments; Urban areas; Land Use; Aromatic Compounds; Air Pollution; Urban Watersheds; Hydrocarbons; Urban Areas; Sediment Contamination ER - TY - JOUR T1 - Variation in Pesticide Tolerance of Tadpoles among and within Species of Ranidae and Patterns of Amphibian Decline AN - 18244694; 5307796 AB - There is significant variation among and within amphibian species with respect to reports of population decline; declining species are often found in environments that are physiograpically similar to environments where the same species is thriving. Because variability exists among organisms in their sensitivity to environmental stressors, it is important to determine the degree of this variation when undertaking conservation efforts. We conducted both lethal (time-to-death) and sublethal (activity change) assays to determine the degree of variation in the sensitivity of tadpoles to a pesticide, carbaryl, at three hierarchical levels: among ranid species, among several populations of a single ranid species ( Rana sphenocephala), and within populations of R. sphenocephala. We observed significant variation in time to death among the nine ranid species and among the 10 R. sphenocephala populations we tested. Four out of eight R. sphenocephala populations exhibited significantly different times to death among families. The magnitude of the activity change in response to exposure to sublethal carbaryl levels was significantly different among species and within R. sphenocephala populations. Chemical contamination, at lethal or sublethal levels, can alter natural regulatory processes such as juvenile recruitment in amphibian populations and should be considered a contributing cause of declines in amphibian populations. JF - Conservation Biology AU - Bridges, C M AU - Semlitsch, R D AD - Division of Biological Sciences, University of Missouri, Columbia, MO 65211-7400, U.S.A., christine_bridges@usgs.gov Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 1490 EP - 1499 PB - Blackwell Science Ltd VL - 14 IS - 5 SN - 0888-8892, 0888-8892 KW - Amphibians KW - Ranids KW - Riparian frogs KW - population declines KW - Ecology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - Lethal effects KW - Recruitment KW - Larvae KW - Carbaryl KW - Pollution effects KW - Biological resistance KW - Freshwater KW - Population decline KW - Toxicity tests KW - Amphibia KW - Pesticide resistance KW - Bioassays KW - Rana sphenocephala KW - Sublethal effects KW - Pesticides KW - Ranidae KW - Nature conservation KW - Conservation KW - Q1 08442:Population dynamics KW - Q5 08504:Effects on organisms KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18244694?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Conservation+Biology&rft.atitle=Variation+in+Pesticide+Tolerance+of+Tadpoles+among+and+within+Species+of+Ranidae+and+Patterns+of+Amphibian+Decline&rft.au=Bridges%2C+C+M%3BSemlitsch%2C+R+D&rft.aulast=Bridges&rft.aufirst=C&rft.date=2000-10-01&rft.volume=14&rft.issue=5&rft.spage=1490&rft.isbn=&rft.btitle=&rft.title=Conservation+Biology&rft.issn=08888892&rft_id=info:doi/10.1046%2Fj.1523-1739.2000.99343.x LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Lethal effects; Bioassays; Sublethal effects; Pesticides; Larvae; Nature conservation; Pollution effects; Biological resistance; Toxicity tests; Pesticide resistance; Recruitment; Conservation; Carbaryl; Population decline; Amphibia; Rana sphenocephala; Ranidae; Freshwater DO - http://dx.doi.org/10.1046/j.1523-1739.2000.99343.x ER - TY - JOUR T1 - Should dams be modified for the probable maximum flood? AN - 18164874; 4791645 AB - The probable maximum flood (PMF) currently serves as the design standard for many U.S. dams. Floods used for design have increased and currently thousands of dams in the U.S. would be overtopped and possibly fail using the latest calculated PMF at each dam site. Some researchers have suggested that modifying dams to accommodate the PMF could be wasteful. Objections to using the PMF for dam modification include: (1) larger spillway capacity may increase annual downstream flood losses, (2) benefit-cost ratios may be low, (3) construction accidents associated with dam modification may cause fatalities, and (4) the dollar amount spent to save lives by making dams safer is often very high. Based on these objections, a procedure is presented for evaluating the effectiveness of a proposed dam modification. A change in spillway design policy is recommended. Accepting the status quo at a dam that cannot accommodate the PMF may be the best course of action. JF - Journal of the American Water Resources Association AU - Graham, W J AD - Water Resources Services, Bureau of Reclamation, Denver Federal Center, Denver, CO 80225-0007, USA, wgraham@do.usbr.gov Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 953 EP - 964 VL - 36 IS - 5 SN - 1093-474X, 1093-474X KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts KW - Flood control KW - Construction KW - Spillways KW - Floods and flooding KW - Safety KW - Water resources KW - Spillway KW - Civil Engineering KW - Engineering KW - Water management KW - Dams KW - Design Criteria KW - Flooding KW - Design data KW - Water Control KW - Q2 09127:General papers on resources KW - AQ 00005:Underground Services and Water Use KW - SW 6010:Structures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18164874?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Should+dams+be+modified+for+the+probable+maximum+flood%3F&rft.au=Graham%2C+W+J&rft.aulast=Graham&rft.aufirst=W&rft.date=2000-10-01&rft.volume=36&rft.issue=5&rft.spage=953&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Flood control; Engineering; Construction; Dams; Water management; Water resources; Safety; Floods and flooding; Spillway; Design data; Civil Engineering; Design Criteria; Spillways; Flooding; Water Control ER - TY - JOUR T1 - Comparing Polychlorinated Biphenyl Concentrations and Patterns in the Saginaw River Using Sediment, Caged Fish, and Semipermeable Membrane Devices AN - 18028982; 4807738 AB - Three techniques of assessing bioavailable polychlorinated biphenyls (PCBs) in the Saginaw River, MI, were compared: sediments, caged fish, and semipermeable membrane devices (SPMDs). SPMDs and caged fish were placed in the river for 28 days at five sites where sediments were also sampled. The samples were analyzed for PCB congeners to determine concentrations and patterns. Total PCB concentrations ranged from 33 to 280 ng/g (dry weight) in sediments, 46 to 290 ng/g (wet weight) in caged fish, and 77 to 790 ng/g in SPMDs. Previously reported rates of PCB accumulation by SPMDs were used to estimate aqueous concentrations from the PCB concentrations detected in the SPMDs. Sediment-water partition coefficients were used to estimate aqueous PCB concentrations from sediment. Steady-state bioconcentration factors and depuration rate constants were used to estimate dissolved PCB concentrations from caged channel catfish. Relative PCB patterns from the SPMDs, caged fish, and sediment were compared using principal components analysis. SPMD and sediment samples provide complementary information. Sediments reflect long-term accumulation and weathering, while SPMDs integrate water concentrations only during the sampling period. Because of higher water solubilities of lower-chlorinated PCBs these predominate in the SPMDs as compared to in the fish and sediments. Contaminant profile differences between caged fish and SPMDs are likely due to metabolism and depuration of certain PCB congeners by fish. JF - Environmental Science & Technology AU - Echols, K R AU - Gale, R W AU - Schwartz, T R AU - Huckins, J N AU - Williams, L L AU - Meadows, J C AU - Morse, D AU - Petty, J D AU - Orazio, CE AU - Tillitt, DE AD - Columbia Environmental Research Center, U. S. Geological Survey, 4200 New Haven Road, Columbia, MO 65201, USA, Kathy_Echols@usgs.gov Y1 - 2000/10/01/ PY - 2000 DA - 2000 Oct 01 SP - 4095 EP - 4102 VL - 34 IS - 19 SN - 0013-936X, 0013-936X KW - USA, Michigan, Saginaw R. KW - bioavailability KW - fish KW - methodology KW - ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Pollution Abstracts; Water Resources Abstracts; Toxicology Abstracts KW - Water Pollution KW - Aquatic organisms KW - Pollution monitoring KW - Polychlorinated Biphenyls KW - Chemical Analysis KW - Pisces KW - Polychlorinated biphenyls KW - Monitoring methods KW - Sediment Contamination KW - PCB compounds KW - PCB KW - Freshwater pollution KW - Rivers KW - Chemical analysis (see also Individual techniques) KW - Bioindicators KW - Sediment pollution KW - Membranes KW - Fish (see also Individual groups) KW - Contaminated sediments KW - Streams (in natural channels) KW - Pollution surveys KW - Bioassays KW - Bioaccumulation KW - Profiles KW - Analytical techniques KW - Fish KW - Pollution (Water) KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - X 24222:Analytical procedures KW - X 24156:Environmental impact KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18028982?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Comparing+Polychlorinated+Biphenyl+Concentrations+and+Patterns+in+the+Saginaw+River+Using+Sediment%2C+Caged+Fish%2C+and+Semipermeable+Membrane+Devices&rft.au=Echols%2C+K+R%3BGale%2C+R+W%3BSchwartz%2C+T+R%3BHuckins%2C+J+N%3BWilliams%2C+L+L%3BMeadows%2C+J+C%3BMorse%2C+D%3BPetty%2C+J+D%3BOrazio%2C+CE%3BTillitt%2C+DE&rft.aulast=Echols&rft.aufirst=K&rft.date=2000-10-01&rft.volume=34&rft.issue=19&rft.spage=4095&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Bioaccumulation; Bioassays; Analytical techniques; Pollution surveys; PCB; Pollution monitoring; Freshwater pollution; Bioindicators; Aquatic organisms; Monitoring methods; Membranes; PCB compounds; Chemical analysis (see also Individual techniques); Polychlorinated biphenyls; Fish (see also Individual groups); Streams (in natural channels); Contaminated sediments; Pollution (Water); Rivers; Water Pollution; Profiles; Polychlorinated Biphenyls; Chemical Analysis; Sediment Contamination; Fish; Pisces ER - TY - JOUR T1 - Hazards to Wildlife from Soil-Borne Cadmium Reconsidered AN - 17844389; 4872435 AB - Cadmium is a toxic element that should be included in environmental risk assessments of contaminated soils. This paper argues, however, that hazards to wildlife from cadmium have often been overstated. The literature contains only meager evidence that wild animals have been seriously harmed by cadmium, even at severely contaminated sites. Although some researchers have reported that wildlife have accumulated concentrations of cadmium in their kidneys that were above suggested injury thresholds, the thresholds may be disputed, since they were well below the World Health Organization criterion of 200 mg/kg (wet weight) of cadmium in the renal cortex for protecting human health. Recent risk assessments have concluded that soil cadmium concentrations less than 1 mg/kg are toxic to soil organisms and wildlife, which implies that background concentrations of cadmium naturally found in soils are hazardous. An examination of the databases used to support these assessments suggested that the toxicity of cadmium has been exaggerated. JF - Journal of Environmental Quality AU - Beyer, W N AD - U.S. Geological Survey, Patuxent Wildlife Research Center, 12011 Beech Forest Rd., Laurel, MD, 20708-4041, USA, Nelson_Beyer@usgs.gov Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 1380 EP - 1384 VL - 29 IS - 5 SN - 0047-2425, 0047-2425 KW - Risk Abstracts; Pollution Abstracts KW - Heavy metals KW - Pollution effects KW - Cadmium KW - Wildlife KW - Soil contamination KW - Toxicity KW - R2 23040:Biological KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17844389?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Hazards+to+Wildlife+from+Soil-Borne+Cadmium+Reconsidered&rft.au=Beyer%2C+W+N&rft.aulast=Beyer&rft.aufirst=W&rft.date=2000-10-01&rft.volume=29&rft.issue=5&rft.spage=1380&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Toxicity; Heavy metals; Cadmium; Soil contamination; Pollution effects; Wildlife ER - TY - JOUR T1 - Use of lice to identify cowbird hosts AN - 17809372; 4848742 AB - Brood-parasitic nestlings have a unique opportunity to encounter host-specific lice (Phthiraptera). Lice are permanent ectoparasites found strictly on the body of the host, and they are transferred almost exclusively by bodily contact during copulation and care of young. We investigated whether Brown-headed Cowbird (Molothrus ater) nestlings become infested with lice from their host parents and carry these after fledging, in effect bearing ectoparasite indicators of the species that raised them. Examining lice on cowbirds to identify foster parents would be less costly than determining parasitism patterns in the conventional way by finding many host nests. The 244 cowbird fledglings that we examined carried 11 species and 6 genera of lice, almost the entire spectrum of louse genera known from passerines. We also examined 320 songbirds from 30 species of hosts. As a group, the diversity of louse species on hosts was comparable to that on fledgling cowbirds: 13 species and 7 genera. In contrast, most individual host species yielded only one or two louse species, significantly fewer than on cowbird fledglings. Of 44 fledgling cowbirds with lice, 11 were linked with probable avian foster parents, and 18 other fledglings were linked with one of two possible foster parents. We conclude that cowbird fledglings carry away host lice and that our technique provides a partial assessment of parasitism patterns. The incomplete state of louse taxonomy requires that users of the technique obtain a reference collection of lice from host species in addition to the sample collection from cowbird fledglings. Lice from cowbird fledglings can be identified by a taxonomist and linked to particular host species, and the principal difficulty is the scarcity of skilled louse taxonomists. We also found an unusually rich louse fauna on 219 adult cowbirds, which supports the interpretation that lack of opportunity due to physical isolation has been the fundamental factor in the host specificity of lice in certain avian orders. JF - Auk AU - Hahn, D C AU - Price, R D AU - Osenton, P C AD - USGS Patuxent Wildlife Research Center, 11410 American Holly Drive, Laurel, Maryland 20708, USA, caldwell_hahn@usgs.gov Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 943 EP - 951 PB - [URL:http://journals.allenpress.com/jrnlserv/?request=get-abstract &issn=0004-8038&volume=117&page=943] VL - 117 IS - 4 SN - 0004-8038, 0004-8038 KW - Brown-headed cowbird KW - Biting lice KW - Birds KW - Ecology Abstracts KW - Aves KW - Parasites KW - Mallophaga KW - Molothrus ater KW - brood parasitism KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17809372?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Auk&rft.atitle=Use+of+lice+to+identify+cowbird+hosts&rft.au=Hahn%2C+D+C%3BPrice%2C+R+D%3BOsenton%2C+P+C&rft.aulast=Hahn&rft.aufirst=D&rft.date=2000-10-01&rft.volume=117&rft.issue=4&rft.spage=943&rft.isbn=&rft.btitle=&rft.title=Auk&rft.issn=00048038&rft_id=info:doi/10.1043%2F0004-8038%282000%29117%280943%3AUOLTIC%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Molothrus ater; Mallophaga; Aves; brood parasitism; Parasites DO - http://dx.doi.org/10.1043/0004-8038(2000)117(0943:UOLTIC)2.0.CO;2 ER - TY - JOUR T1 - Clearcut stand size and scrub-successional bird assemblages AN - 17807923; 4848739 AB - We investigated the effects of clearcut stand size on species richness, reproductive effort, and relative abundance of scrub-successional birds and the entire bird assemblage at the Savannah River Site in South Carolina. We used standardized mist-net grids to mark and recapture birds in clearcuts replanted with longleaf pine (Pinus palustris) in stands of 2 to 57 ha that were two to six years old. Species richness for the entire bird assemblage was not explained by stand size (P = 0.67), stand age (P = 0.95), or the interaction of these two variables (P = 0.90). Similarly, species richness of scrub-successional birds was not explained by stand size (P = 0.63), stand age (P = 0.55), or the interaction of stand size and stand age (P = 0.35). Regressing species richness on clearcut stand size, we found a significant negative relationship between these variables for the entire bird assemblage (P = 0.01) and for scrub-successional birds (P = 0.02). The ratio of juveniles to adults in mist-net samples varied by year (P = 0.04), but neither clearcut size (P = 0.23) nor the interaction of clearcut size and year (P = 0.25) was related to the ratio of juveniles to adults in the sample. We found no relationship between the frequency of capture of any category of birds and stand size (scrub-successional, P = 0.52; woodland, P = 0.77; combined sample, P = 0.55). Neither bird-species richness, reproductive effort, nor relative abundance differed across clearcut stand sizes. Clearcut stand size does not appear to be an important management variable if variation in species richness, reproductive effort, or relative abundance are objectives. We suggest that even-aged forestry is a useful tool for managing birds in the southeastern United States. JF - Auk AU - Krementz, D G AU - Christie, J S AD - United States Geological Survey, Arkansas Cooperative Fish and Wildlife Research Unit, Department of Biological Sciences, University of Arkansas, Fayetteville, Arkansas 72701, USA, krementz@comp.uark.edu Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 913 EP - 924 PB - [URL:http://journals.allenpress.com/jrnlserv/?request=get-abstract &issn=0004-8038&volume=117&page=913] VL - 117 IS - 4 SN - 0004-8038, 0004-8038 KW - Longleaf pine KW - Birds KW - USA, South Carolina KW - Ecology Abstracts KW - Aves KW - Abundance KW - Pinus palustris KW - Reproduction KW - Species richness KW - Forestry KW - Clear cutting KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17807923?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Auk&rft.atitle=Clearcut+stand+size+and+scrub-successional+bird+assemblages&rft.au=Krementz%2C+D+G%3BChristie%2C+J+S&rft.aulast=Krementz&rft.aufirst=D&rft.date=2000-10-01&rft.volume=117&rft.issue=4&rft.spage=913&rft.isbn=&rft.btitle=&rft.title=Auk&rft.issn=00048038&rft_id=info:doi/10.1043%2F0004-8038%282000%29117%280913%3ACSSASS%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pinus palustris; Aves; Clear cutting; Species richness; Reproduction; Abundance; Forestry DO - http://dx.doi.org/10.1043/0004-8038(2000)117(0913:CSSASS)2.0.CO;2 ER - TY - JOUR T1 - White-tailed Deer (Odocoileus virginianus) Predation on grassland Songbird Nestlings AN - 17771126; 4823273 AB - White-tailed deer (Odocoileus virginianus) were videotaped depredating four songbird nests in grassland habitats in southeastern and northcentral North Dakota, 1996-1999. Deer ate two Savannah sparrow (Passerculus sandwichensis), two grasshopper sparrow (Ammodramus savannarum), one clay-colored sparrow (Spizella pallida), one red-winged blackbird (Agelaius phoeniceus) and three brown-headed cowbird (Molothrus ater) nestlings. Deer removed nestlings quickly (5-19 sec/nest) at night (22:00 to 05:17 Central Daylight Time) and left no evidence of predation. Although probably opportunistic, deer predations clearly were deliberate and likely are more common than generally believed. JF - American Midland Naturalist AU - Pietz, P J AU - Granfors, DA Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 419 EP - 422 PB - [URL:http://journals.allenpress.com/jrnlserv/?request=get-abstract &issn=0003-0031&volume=144&page=419] VL - 144 IS - 2 SN - 0003-0031, 0003-0031 KW - Birds KW - White-tailed deer KW - USA, North Dakota KW - Ecology Abstracts KW - Odocoileus virginianus KW - Aves KW - Grasslands KW - Predation KW - Nests KW - D 04671:Birds KW - D 04672:Mammals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17771126?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Midland+Naturalist&rft.atitle=White-tailed+Deer+%28Odocoileus+virginianus%29+Predation+on+grassland+Songbird+Nestlings&rft.au=Pietz%2C+P+J%3BGranfors%2C+DA&rft.aulast=Pietz&rft.aufirst=P&rft.date=2000-10-01&rft.volume=144&rft.issue=2&rft.spage=419&rft.isbn=&rft.btitle=&rft.title=American+Midland+Naturalist&rft.issn=00030031&rft_id=info:doi/10.1043%2F0003-0031%282000%29144%280419%3AWTDOVP%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; Odocoileus virginianus; Predation; Grasslands; Nests DO - http://dx.doi.org/10.1043/0003-0031(2000)144(0419:WTDOVP)2.0.CO;2 ER - TY - JOUR T1 - Lead exposure in American black ducks after implementation of non-toxic shot AN - 17755603; 4823145 AB - Lead poisoning from the ingestion of spent shotgun pellets has been recognized as an important disease of North American waterfowl since Bellrose's (1959) research >40 years ago. Nation-wide regulations banning the use of lead shot for waterfowl hunting were established in 1991. We compared the prevalence of lead exposure in American black ducks (Anas rubripes) wintering on 2 areas in Tennessee before (1986-88) and after the ban (1997-99) to assess the effect of the ban on lead shot on this species. Prevalence of elevated blood lead in black ducks declined by 44% from before (11.7% prevalence) to after (6.5% prevalence) the implementation of non-toxic shot. The reduction in lead exposure was pronounced in adult black ducks (from 14.3% to 5.3%). However, prevalence in lead exposure remained similar in juvenile black ducks (from 8.2% to 8.3%). Additional evidence from lead ingestion and lead poisoning mortality events also indicates that lead exposure has declined in waterfowl in the Mississippi flyway. We believe that lead ingestion will continue to decline, despite the persistence of lead shot in some wetlands. The impact of reduced lead exposure on waterfowl populations needs to be assessed. JF - Journal of Wildlife Management AU - Samuel, MD AU - Bowers, E F AD - U.S. Geological Survey, National Wildlife Health Center, 6006 Schroeder Road, Madison, WI 53711, USA, michael_samuel@usgs.gov Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 947 EP - 953 VL - 64 IS - 4 SN - 0022-541X, 0022-541X KW - American black duck KW - USA, Tennessee KW - ingestion KW - lead toxicity KW - toxicity KW - ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts; Toxicology Abstracts KW - Wildlife management KW - Heavy metals KW - Lead KW - Anas rubripes KW - Shotgun pellets KW - Pollutant persistence KW - Wetlands KW - Hunting KW - Aquatic birds KW - Mortality causes KW - Pollution control KW - D 04700:Management KW - X 24166:Environmental impact KW - Q5 08504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17755603?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Wildlife+Management&rft.atitle=Lead+exposure+in+American+black+ducks+after+implementation+of+non-toxic+shot&rft.au=Samuel%2C+MD%3BBowers%2C+E+F&rft.aulast=Samuel&rft.aufirst=MD&rft.date=2000-10-01&rft.volume=64&rft.issue=4&rft.spage=947&rft.isbn=&rft.btitle=&rft.title=Journal+of+Wildlife+Management&rft.issn=0022541X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Pollutant persistence; Wetlands; Mortality causes; Aquatic birds; Lead; Pollution control; Wildlife management; Shotgun pellets; Heavy metals; Hunting; Anas rubripes ER - TY - JOUR T1 - Structure and composition of oligohaline marsh plant communities exposed to salinity pulses AN - 17755286; 4820280 AB - The response of two oligohaline marsh macrophyte communities to pulses of increased salinity was studied over a single growing season in a greenhouse experiment. The plant communities were allowed a recovery period in freshwater following the pulse events. The experimental treatments included: (1) salinity influx rate (rate of salinity increase from 0 to 12 g l super(-1)); (2) duration of exposure to elevated salinity; and (3) water depth. The communities both included Sagittaria lancifolia L.; the codominant species were Eleocharis palustris (L.) Roemer and J.A. Schultes in community 1 and Schoenoplectus americanus (Pers.) Volk. ex Schinz and R. Keller in community 2. Effects of the treatments on sediment chemical characteristics (salinity, pH, redox potential, and sulfide and ammonium concentrations) and plant community attributes (aboveground and belowground biomass, stem density, leaf tissue nutrients, and species richness) were examined. The treatment effects often interacted to influence sediment and plant communities characteristics following recovery in fresh water. Salinity influx rate per se, however, had little effect on the abiotic or biotic response variables; significant influx effects were found when the 0 g l super(-1) (zero influx) treatment was compared to the 12 g l super(-1) treatments, regardless of the rate salinity was raised. A salinity level of 12 g l super(-1) had negative effects on plant community structure and composition; these effects were usually associated with 3 months of salinity exposure. Water depth often interacted with exposure duration, but increased water depth did independently decrease the values of some community response measures. Community 1 was affected more than community 2 in the most extreme salinity treatment (3 months exposure/15-cm water depth). Although species richness in both communities was reduced, structural changes were more dramatic in community 1. Biomass and stem density were reduced in community 1 overall and in both dominant species. Structural changes in community 2 consisted of reduced biomass and stem density in the community overall and in S. lancifolia; S. americanus was not affected by salinity. In this most extreme treatment, community 2 tended to change to a monospecific S. americanus stand while community 1 was reduced to a few surviving stems of secondary species. Our results suggest that vegetation recovery or establishment of new species following a temporary increase in soil water salinity will vary with exposure duration and water depth. JF - Aquatic Botany AU - Howard, R J AU - Mendelssohn, IA AD - U.S. Geological Survey, National Wetlands Research Center, 700 Cajundome Blvd, Lafayette, LA 70506-3152, USA, rebecca_howard@usgs.gov Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 143 EP - 164 VL - 68 IS - 2 SN - 0304-3770, 0304-3770 KW - Water Resources Abstracts; Ecology Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Water depth KW - Schoenoplectus americanus KW - Salt Tolerance KW - Brackish KW - Vegetation KW - Marshes KW - Salinity tolerance KW - Macrophytes KW - Community composition KW - Community structure KW - Sagittaria lancifolia KW - Salinity effects KW - Soils KW - Water Depth KW - Eleocharis palustris KW - Plant populations KW - O 1070:Ecology/Community Studies KW - Q1 08462:Benthos KW - Q1 08226:Physiology, biochemistry, biophysics KW - O 1010:Viruses, Bacteria, Protists, Fungi and Plants KW - SW 0860:Water and plants KW - Q1 08422:Environmental effects KW - D 04200:Wetlands UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17755286?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquatic+Botany&rft.atitle=Structure+and+composition+of+oligohaline+marsh+plant+communities+exposed+to+salinity+pulses&rft.au=Howard%2C+R+J%3BMendelssohn%2C+IA&rft.aulast=Howard&rft.aufirst=R&rft.date=2000-10-01&rft.volume=68&rft.issue=2&rft.spage=143&rft.isbn=&rft.btitle=&rft.title=Aquatic+Botany&rft.issn=03043770&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Water depth; Community composition; Salinity effects; Soils; Salinity tolerance; Marshes; Plant populations; Community structure; Macrophytes; Salt Tolerance; Water Depth; Vegetation; Schoenoplectus americanus; Sagittaria lancifolia; Eleocharis palustris; Brackish ER - TY - JOUR T1 - Effects of white phosphorus on mallard reproduction AN - 17726934; 4791680 AB - Extensive waterfowl mortality involving thousands of ducks, geese, and swans has occurred annually at Eagle River Flats, Alaska, USA, since at least 1982. The primary agent for this mortality has been identified as white phosphorus. Although acute and subacute lethality have been described, sublethal effects are less well known. This study reports on the effects of white phosphorus on reproductive function in the mallard (Anas platyrhynchos) in captivity. Fertility, hatching success, teratogenicity, and egg laying frequency were examined in 70 adult female mallards who received up to seven daily doses of 0, 0.5, 1.0, and 2.0 mg/kg of white phosphorus. Measurements of fertility and hatchability were reduced by the white phosphorus. Teratogenic effects were observed in embryos from hens dosed at all treatment levels. Egg laying frequency was reduced even at the lowest treatment level; treated hens required a greater number of days to lay a clutch of 12 eggs than control hens. After two doses at 2.0 mg/kg, all females stopped laying completely for a minimum of 10 d, and laying frequency was depressed for at least 45 d. Fertility of 10 adult male mallards dosed with 1.0 mg/kg of white phosphorus did not differ from 10 controls, but plasma testosterone levels were significantly (p < 0.05) reduced in the treated males 1 d after dosing ended. These results provide evidence that productivity of free-ranging mallards may be impaired if they are exposed to white phosphorus at typical field levels. JF - Environmental Toxicology and Chemistry AU - Vann, S L AU - Sparling, D W AU - Ottinger, MA AD - USGS Patuxent Wildlife Research Center, 11510 American Holly Drive, Laurel, MD 20708-4017, USA, don_sparling@usgs.gov Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 2525 EP - 2531 VL - 19 IS - 10 SN - 0730-7268, 0730-7268 KW - Mallard KW - white phosphorus KW - Toxicology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Fertility KW - Phosphorus KW - Pollution effects KW - Freshwater KW - USA, Alaska, Eagle River Flats KW - Anas platyrhynchos KW - Egg laying KW - Ecotoxicology KW - Sublethal effects KW - Reproduction KW - Teratogenicity KW - Teratogens KW - Phosphorus compounds KW - Mortality causes KW - Aquatic birds KW - Freshwater pollution KW - X 24240:Miscellaneous KW - Q5 08504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17726934?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Effects+of+white+phosphorus+on+mallard+reproduction&rft.au=Vann%2C+S+L%3BSparling%2C+D+W%3BOttinger%2C+MA&rft.aulast=Vann&rft.aufirst=S&rft.date=2000-10-01&rft.volume=19&rft.issue=10&rft.spage=2525&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Ecotoxicology; Sublethal effects; Pollution effects; Teratogens; Phosphorus compounds; Aquatic birds; Mortality causes; Fertility; Egg laying; Phosphorus; Teratogenicity; Reproduction; Freshwater pollution; Anas platyrhynchos; USA, Alaska, Eagle River Flats; Freshwater ER - TY - JOUR T1 - The effect of residential development on ground-water quality near Detroit, Michigan AN - 17716570; 4791651 AB - Two water-quality studies were done on the outskirts of the Detroit metropolitan area to determine how recent residential development has affected ground-water quality. Pairs of monitor and domestic wells were sampled in areas where residential land use overlies glacial outwash deposits. Young, shallow waters had significantly higher median concentrations of nitrate, chloride, and dissolved solids than older, deeper waters. Analysis of chloride/bromide ratios indicates that elevated salinities are due to human activities rather than natural factors, such as upward migration of brine. Trace concentrations of volatile organic compounds were detected in samples from 97 percent of the monitor wells. Pesticides were detected infrequently even though they are routinely applied to lawns and roadways in the study area. The greatest influence on ground-water quality appears to be from septic-system effluent (domestic sewage, household solvents, water-softener backwash) and infiltration of stormwater runoff from paved surfaces (road salt, fuel residue). No health-related drinking-water standards were exceeded in samples from domestic wells. However, the effects of human activities are apparent in 76 percent of young waters, and at depths far below 25 feet, which is the current minimum well-depth requirement. JF - Journal of the American Water Resources Association AU - Thomas, MA AD - U.S. Geological Survey, 6480 Doubletree Avenue, Columbus, OH 43229-1111, USA, mathomas@usgs.gov Y1 - 2000/10// PY - 2000 DA - October 2000 SP - 1023 EP - 1038 VL - 36 IS - 5 SN - 1093-474X, 1093-474X KW - USA, Michigan, Detroit KW - Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Aqualine Abstracts KW - Water quality measurements KW - Sewages KW - Wastewater Pollution KW - Wells (see also Boreholes) KW - Water Quality Standards KW - Salinity KW - Volatile hydrocarbons KW - Stormwater runoff KW - Water Quality Management KW - Standards (Water quality) KW - Pesticides (see also Bactericides, Weedkillers) KW - Effluents KW - Pollutant identification KW - Pollution surveys KW - Land use KW - Water quality control KW - Domestic Wastewater KW - Sewage KW - Wells KW - Pesticides KW - Groundwater (see also Aquifers) KW - Residential areas KW - Infiltration KW - Groundwater pollution KW - Groundwater KW - Monitoring KW - Volatile organic compounds KW - AQ 00001:Water Resources and Supplies KW - Q5 08503:Characteristics, behavior and fate KW - SW 2060:Effects on water of human nonwater activities KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17716570?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=The+effect+of+residential+development+on+ground-water+quality+near+Detroit%2C+Michigan&rft.au=Thomas%2C+MA&rft.aulast=Thomas&rft.aufirst=MA&rft.date=2000-10-01&rft.volume=36&rft.issue=5&rft.spage=1023&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Volatile hydrocarbons; Sewage; Pesticides; Groundwater pollution; Pollutant identification; Pollution surveys; Stormwater runoff; Water quality measurements; Infiltration; Residential areas; Effluents; Volatile organic compounds; Land use; Standards (Water quality); Water quality control; Salinity; Pesticides (see also Bactericides, Weedkillers); Groundwater (see also Aquifers); Sewages; Monitoring; Wells (see also Boreholes); Domestic Wastewater; Water Quality Standards; Wells; Water Quality Management; Groundwater; Wastewater Pollution ER - TY - JOUR T1 - Effects of Heterogeneity in Aquifer Permeability and Biomass on Biodegradation Rate Calculations--Results from Numerical Simulations AN - 17700028; 4779722 AB - Numerical simulations were used to examine the effects of heterogeneity in hydraulic conductivity (K) and intrinsic biodegradation rate on the accuracy of contaminant plume-scale biodegradation rates obtained from field data. The simulations were based on a steady-state BTEX contaminant plume undergoing biodegradation under sulfate-reducing conditions, with the electron acceptor in excess. Biomass was either uniform or correlated with K to model spatially variable intrinsic biodegradation rates. A hydraulic conductivity data set from an alluvial aquifer was used to generate three sets of 10 realizations with different degrees of heterogeneity, and contaminant transport with biodegradation was simulated with BIOMOC. Biodegradation rates were calculated from the steady-state contaminant plumes using decrease in concentration with distance downgradient and a single flow velocity estimate, as is commonly done in site characterization to support the interpretation of natural attenuation. The observed rates were found to underestimate the actual rate specified in the heterogeneous model in all cases. The discrepancy between the observed rate and the "true" rate depended on the ground water flow velocity estimate, and increased with increasing heterogeneity in the aquifer. For a lognormal K distribution with variance of 0.46, the estimate was no more than a factor of 1.4 slower than the true rate. For an aquifer with 20% silt/clay lenses, the rate estimate was as much as nine times slower than the true rate. Homogeneous-permeability, uniform-degradation rate simulations were used to generate predictions of remediation time with the rates estimated from the heterogeneous models. The homogeneous models generally overestimated the extent of remediation or underestimated remediation time, due to delayed degradation of contaminants in the low-K areas. Results suggest that aquifer characterization for natural attenuation at contaminated sites should include assessment of the presence and extent of, and contaminant concentrations in, low-permeability areas of an aquifer. JF - Ground Water AU - Scholl, MA AD - U.S. Geological Survey, Water Resources Division, 431 National Center, Reston, VA 20192, USA, mascholl@usgs.gov Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 702 EP - 712 VL - 38 IS - 5 SN - 0017-467X, 0017-467X KW - BIOMOC KW - natural attenuation KW - Pollution Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Aquifers KW - Hydraulics KW - Biodegradation KW - Water Pollution Treatment KW - Conductance KW - Simulation KW - Groundwater Pollution KW - Biomass KW - Permeability Coefficient KW - Pollution (Groundwater) KW - Biodegradation (see also Biological oxidation) KW - Permeability KW - Remediation KW - Aquifer Characteristics KW - Pollution (Water) KW - Plumes KW - Permeation KW - P 2000:FRESHWATER POLLUTION KW - SW 3070:Water quality control KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17700028?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Effects+of+Heterogeneity+in+Aquifer+Permeability+and+Biomass+on+Biodegradation+Rate+Calculations--Results+from+Numerical+Simulations&rft.au=Scholl%2C+MA&rft.aulast=Scholl&rft.aufirst=MA&rft.date=2000-10-01&rft.volume=38&rft.issue=5&rft.spage=702&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Aquifers; Hydraulics; Permeability; Biodegradation; Remediation; Simulation; Biomass; Pollution (Groundwater); Biodegradation (see also Biological oxidation); Conductance; Plumes; Pollution (Water); Permeation; Water Pollution Treatment; Aquifer Characteristics; Groundwater Pollution; Permeability Coefficient ER - TY - JOUR T1 - Mate fidelity and breeding site tenacity in a monogamous sandpiper, the black turnstone AN - 17685803; 4771382 AB - We examined the relationship between mate fidelity and breeding site tenacity during a 5-year study of the black turnstone, Arenaria melanocephala, a socially monogamous sandpiper breeding in subArctic Alaska. We tested the predictions of several hypotheses regarding the incidence of divorce and the benefits of fidelity to mate and breeding site. Interannual return rates to the breeding grounds (88% for males, 79% for females) were among the highest yet recorded for any scolopacid sandpiper, and 88% of returning birds nested on their previous year's territory. The annual divorce rate was only 11%, and mate fidelity was significantly linked to fidelity to territory but independent of sex and year. Males arrived in spring significantly earlier than their mates and interannual fidelity was influenced by the relative timing of arrival of pair members. Reunited pairs had significantly higher fledging success than new pairs formed after death or divorce. The incidence of divorce was unrelated to reproductive success the previous year, although birds nested significantly further away after failure than after a successful nesting attempt. Sightings of marked individuals suggested that members of pairs do not winter together, and breeding site tenacity provides a mechanism through which pair members can reunite. We reject the 'incompatibility' hypothesis for divorce in turnstones, and our data contradict predictions of the 'better option' hypothesis. Alternatively, we propose the 'bet-hedging' hypothesis to explain the occurrence of divorce, which transpires when an individual pairs with a new mate to avoid the cost of waiting for a previous mate to return. Such costs can include remaining unmated, if the former mate has died, or experiencing lower reproductive success because of delayed breeding. JF - Animal Behaviour AU - Handel, C M AU - Gill, R E AD - Department of Wildlife, Fish, and Conservation Biology, University of California, Davis, CA, USA, colleen-handel@usgs.gov Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 471 EP - 481 PB - Academic Press VL - 60 IS - 4 SN - 0003-3472, 0003-3472 KW - Black turnstone KW - Breeding site tenacity KW - Divorce KW - Mate fidelity KW - USA, Alaska KW - Animal Behavior Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Mating behavior KW - Marine KW - Courtship KW - Marine birds KW - Arenaria melanocephala KW - Breeding sites KW - PNW, USA, Alaska KW - Monogamy KW - Reproductive behaviour KW - Territoriality KW - O 1070:Ecology/Community Studies KW - D 04671:Birds KW - Q1 08423:Behaviour KW - Y 25426:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17685803?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Animal+Behaviour&rft.atitle=Mate+fidelity+and+breeding+site+tenacity+in+a+monogamous+sandpiper%2C+the+black+turnstone&rft.au=Handel%2C+C+M%3BGill%2C+R+E&rft.aulast=Handel&rft.aufirst=C&rft.date=2000-10-01&rft.volume=60&rft.issue=4&rft.spage=471&rft.isbn=&rft.btitle=&rft.title=Animal+Behaviour&rft.issn=00033472&rft_id=info:doi/10.1006%2Fanbe.2000.1505 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Courtship; Marine birds; Breeding sites; Reproductive behaviour; Territoriality; Mating behavior; Monogamy; Arenaria melanocephala; PNW, USA, Alaska; Marine DO - http://dx.doi.org/10.1006/anbe.2000.1505 ER - TY - JOUR T1 - Multicriteria decision analysis applied to Glen Canyon Dam AN - 17635688; 4777611 AB - Conflicts in water resources exist because river-reservoir systems are managed to optimize traditional benefits (e.g., hydropower and flood control), which are historically quantified in economic terms, whereas natural and environmental resources, including in-stream and riparian resources, are more difficult or impossible to quantify in economic terms. Multicriteria decision analysis provides a quantitative approach to evaluate resources subject to river basin management alternatives. This objective quantification method includes inputs from special interest groups, the general public, and concerned individuals, as well as professionals for each resource considered in a trade-off analysis. Multicriteria decision analysis is applied to resources and flow alternatives presented in the environmental impact statement for Glen Canyon Dam on the Colorado River. A numeric rating and priority-weighting scheme is used to evaluate 29 specific natural resource attributes, grouped into seven main resource objectives, for nine flow alternatives enumerated in the environmental impact statement. JF - Journal of Water Resources Planning and Management AU - Flug, M AU - Seitz, HLH AU - Scott, J F AD - U.S. Geological Survey, 4512 McMurry Ave., Ft. Collins, CO 80525-3400, USA, marshall_flug@usgs.gov Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 270 EP - 276 VL - 126 IS - 5 SN - 0733-9496, 0733-9496 KW - USA, Colorado R. KW - Water Resources Abstracts; Aqualine Abstracts KW - Environmental Effects KW - Rivers KW - Pollution (Environmental) KW - Water resources KW - Decision Making KW - Streams (in natural channels) KW - Resources Management KW - Dams KW - Decision theory KW - River basin management KW - Benefits KW - River Basin Management KW - Reservoirs KW - Water Resources KW - SW 4020:Evaluation process KW - AQ 00005:Underground Services and Water Use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17635688?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Water+Resources+Planning+and+Management&rft.atitle=Multicriteria+decision+analysis+applied+to+Glen+Canyon+Dam&rft.au=Flug%2C+M%3BSeitz%2C+HLH%3BScott%2C+J+F&rft.aulast=Flug&rft.aufirst=M&rft.date=2000-10-01&rft.volume=126&rft.issue=5&rft.spage=270&rft.isbn=&rft.btitle=&rft.title=Journal+of+Water+Resources+Planning+and+Management&rft.issn=07339496&rft_id=info:doi/10.1061%2F%28ASCE%290733-9496%282000%29126%3A5%28270%29 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Decision Making; Dams; Water Resources; Rivers; Reservoirs; Resources Management; River Basin Management; Environmental Effects; Benefits; USA, Colorado R.; Decision theory; Water resources; Streams (in natural channels); River basin management; Pollution (Environmental) DO - http://dx.doi.org/10.1061/(ASCE)0733-9496(2000)126:5(270) ER - TY - JOUR T1 - Integrating Borehole Logs and Aquifer Tests in Aquifer Characterization AN - 17634023; 4779723 AB - Integration of lithologic logs, geophysical logs, and hydraulic tests is critical in characterizing heterogeneous aquifers. Typically only a limited number of aquifer tests can be performed, and these need to be designed to provide hydraulic properties for the principle aquifers in the system. This study describes the integration of logs and aquifer tests in the development of a hydrostratigraphic model for the surficial aquifer system in and around Big Cypress National Preserve in eastern Collier County, Florida. Borehole flowmeter tests provide qualitative permeability profiles in most of 26 boreholes drilled in the study area. Flow logs indicate the depth of transmissive units, which are correlated across the study area. Comparison to published studies in adjacent areas indicates that the main limestone aquifer of the Tamiami Formation in the study area corresponds with the gray limestone aquifer in western Dade County and the water table and lower Tamiami Aquifer in western Collier County. Four strategically located, multiwell aquifer tests are used to quantify the qualitative permeability profiles provided by the flowmeter log analysis. The hydrostratigraphic model based on these results defines the main aquifer in the central part of the study area as unconfined to semiconfined with a transmissivity as high as 30,000 m super(2)/day. The aquifer decreases in transmissivity to less than 10,000 m super(2)/day in some parts of western Collier County, and becomes confined to the east and northeast of the study area, where transmissivity decreases to below 5000 m super(2)/day. JF - Ground Water AU - Paillet, F L AU - Reese, R S AD - U.S. Geological Survey, P.O. Box 25046, MS 403, Denver, CO 80225, USA, fpaillet@usgs.gov Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 713 EP - 725 VL - 38 IS - 5 SN - 0017-467X, 0017-467X KW - USA, Florida KW - Water Resources Abstracts; Aqualine Abstracts KW - Aquifers KW - Hydraulics KW - Logging (Recording) KW - Groundwater flow KW - Hydrogeology KW - Boreholes KW - Permeability KW - Geohydrology KW - Aquifer Characteristics KW - Aquifer Testing KW - Flowmeters KW - Geology KW - Geophysics KW - Groundwater Movement KW - Permeation KW - Hydraulic Properties KW - AQ 00001:Water Resources and Supplies KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17634023?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Integrating+Borehole+Logs+and+Aquifer+Tests+in+Aquifer+Characterization&rft.au=Paillet%2C+F+L%3BReese%2C+R+S&rft.aulast=Paillet&rft.aufirst=F&rft.date=2000-10-01&rft.volume=38&rft.issue=5&rft.spage=713&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Boreholes; Logging (Recording); Aquifer Testing; Aquifer Characteristics; Hydraulics; Geophysics; Geology; Permeability; Flowmeters; Hydraulic Properties; Geohydrology; Groundwater Movement; USA, Florida; Permeation; Aquifers; Hydrogeology; Groundwater flow ER - TY - JOUR T1 - Statistical Evaluation of Effects of Riparian Buffers on Nitrate and Ground Water Quality AN - 16126574; 4872448 AB - A study was conducted to statistically evaluate the effectiveness of riparian buffers for decreasing nitrate concentrations in ground water and for affecting other chemical constituents. Values for pH, specific conductance, alkalinity, dissolved organic carbon (DOC), silica, ammonium, phosphorus, iron, and manganese at 28 sites in the Contentnea Creek Basin were significantly higher (p 20 yr) discharging ground water draining areas with riparian buffers compared with areas without riparian buffers. No differences in chloride, nitrate nitrogen, calcium, sodium, and dissolved oxygen concentrations in old ground water between buffer and nonbuffer areas were detected. Comparison of samples of young (<20 yr) discharging ground water samples from buffer and nonbuffer areas indicated significantly higher specific conductance, calcium, chloride, and nitrate nitrogen in nonbuffer areas. Riparian buffers along streams can affect the composition of the hyporheic zone by providing a source of organic carbon to the streambed, which creates reducing geochemical conditions that consequently can affect the chemical quality of old ground water discharging through it. Buffer zones between agricultural fields and streams facilitate dilution of conservative chemical constituents in young ground water that originate from fertilizer applications and also allow denitrification in ground water by providing an adequate source of organic carbon generated by vegetation in the buffer zone. Based on the median chloride and nitrate values for young ground water in the Contentnea Creek Basin, nitrate was 95% lower in buffer areas compared with nonbuffer areas, with a 30 to 35% reduction estimated to be due to dilution and 65 to 70% due to reduction and/or denitrification. JF - Journal of Environmental Quality AU - Spruill, T B AD - United States Geological Survey, 3916 Sunset Ridge Road, Raleigh, NC 27607, USA, tspruill@usgs.gov Y1 - 2000/10// PY - 2000 DA - Oct 2000 SP - 1523 EP - 1538 VL - 29 IS - 5 SN - 0047-2425, 0047-2425 KW - buffer strips KW - ripparian buffer zones KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Nitrate KW - Riparian Vegetation KW - Groundwater Discharge KW - Physicochemical Properties KW - Water Analysis KW - Water quality measurements KW - Statistical analysis KW - Buffer KW - Water quality KW - Water analysis KW - Streams KW - Comparative studies KW - Denitrification KW - Buffers KW - USA, North Carolina, Contentnea Creek KW - Riparian environments KW - Nitrates KW - Biogeochemistry KW - Physicochemical properties KW - Geochemistry KW - Water Quality KW - Streams (in natural channels) KW - USA, North Carolina, Contentnea Creek basin KW - Comparison Studies KW - Groundwater (see also Aquifers) KW - Riparian vegetation KW - Groundwater pollution KW - Groundwater KW - Water quality (Natural waters) KW - Pollution control KW - SW 0880:Chemical processes KW - P 2000:FRESHWATER POLLUTION KW - SW 3070:Water quality control KW - Q5 08505:Prevention and control KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16126574?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Statistical+Evaluation+of+Effects+of+Riparian+Buffers+on+Nitrate+and+Ground+Water+Quality&rft.au=Spruill%2C+T+B&rft.aulast=Spruill&rft.aufirst=T&rft.date=2000-10-01&rft.volume=29&rft.issue=5&rft.spage=1523&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-03-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Nitrates; Buffers; Groundwater pollution; Riparian vegetation; Water quality; Pollution control; Denitrification; Geochemistry; Water quality measurements; Statistical analysis; Riparian environments; Groundwater; Streams; Nitrate; Comparative studies; Biogeochemistry; Physicochemical properties; Groundwater (see also Aquifers); Buffer; Streams (in natural channels); Water analysis; Water quality (Natural waters); Riparian Vegetation; Groundwater Discharge; Comparison Studies; Water Analysis; Physicochemical Properties; Water Quality; USA, North Carolina, Contentnea Creek basin; USA, North Carolina, Contentnea Creek ER - TY - JOUR T1 - Geochemical and Microbiological Methods for Evaluating Anaerobic Processes in an Aquifer Contaminated by Landfill Leachate AN - 16135785; 4796551 AB - A combined geochemical and microbiological approach was needed to delineate the biogeochemical processes occurring in an aquifer contaminated by landfill leachate in Norman, OK, where the important microbially mediated reactions in an anoxic plume were iron reduction, sulfate reduction, and methanogenesis. The highest rates of sulfate reduction (13.2 mu M/day) were detected near the water table where sulfate levels were maximal (up to 4.6 mM). The enrichment of super(34)S in the sulfate pools ( delta super(34)S of SO sub(4) super(2-) was 67-69ppt), and dissolved hydrogen measurements provided additional support for the importance of sulfate reduction near the water table. Methane was detected in the center of the plume where sulfate was depleted. Microbial incubations demonstrated concomitant sulfate reduction and methanogenesis in the anoxic portion of the plume. Although high concentrations of soluble reduced iron were detected throughout the aquifer and H sub(2) levels were indicative of iron reduction under steady-state conditions, microbiological experiments showed that iron reduction was active only at the edges of the sulfate-depleted portion of the plume. This study demonstrates the benefits of using a combined geochemical and microbiological approach to elucidate the spatial distribution of biogeochemical processes in contaminated aquifers. JF - Environmental Science & Technology AU - Cozzarelli, I M AU - Suflita, JM AU - Ulrich, G A AU - Harris, SH AU - Scholl, MA AU - Schlottmann, J L AU - Christenson, S AD - U.S. Geological Survey, 431 National Center, Reston, VA 20192, USA, icozzare@usgs.gov Y1 - 2000/09/15/ PY - 2000 DA - 2000 Sep 15 SP - 4025 EP - 4033 VL - 34 IS - 18 SN - 0013-936X, 0013-936X KW - USA, Oklahoma, Norman KW - Water Resources Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts KW - Sulfates KW - Aquifers KW - Waste disposal sites (see also Dumping KW - Leachate KW - Biodegradation KW - Contamination KW - Water Pollution Sources KW - Landfills KW - Groundwater Pollution KW - Sulphates KW - Methanogenesis KW - USA, Oklahoma KW - Waste disposal sites KW - Plumes KW - Anaerobic Digestion KW - Freshwater pollution KW - Biogeochemistry KW - Waste Disposal KW - Geochemistry KW - Anaerobic conditions KW - Pollution (Groundwater) KW - Landfills (see also Waste disposal sites) KW - Sulphate reduction KW - Microbiology KW - Analytical techniques KW - Groundwater pollution KW - Contamination (see also Pollution) KW - Landfills) KW - Leachates KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - A 01016:Microbial degradation KW - Q5 08502:Methods and instruments KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16135785?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Geochemical+and+Microbiological+Methods+for+Evaluating+Anaerobic+Processes+in+an+Aquifer+Contaminated+by+Landfill+Leachate&rft.au=Cozzarelli%2C+I+M%3BSuflita%2C+JM%3BUlrich%2C+G+A%3BHarris%2C+SH%3BScholl%2C+MA%3BSchlottmann%2C+J+L%3BChristenson%2C+S&rft.aulast=Cozzarelli&rft.aufirst=I&rft.date=2000-09-15&rft.volume=34&rft.issue=18&rft.spage=4025&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2001-06-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sulphate reduction; Waste disposal sites; Geochemistry; Analytical techniques; Groundwater pollution; Methanogenesis; Aquifers; Biodegradation; Landfills; Anaerobic conditions; Leachates; Sulfates; Contamination; Biogeochemistry; Microbiology; Plumes; Freshwater pollution; Pollution (Groundwater); Waste disposal sites (see also Dumping; Leachate; Landfills (see also Waste disposal sites); Contamination (see also Pollution); Landfills); Sulphates; Water Pollution Sources; Waste Disposal; Groundwater Pollution; Anaerobic Digestion; USA, Oklahoma ER - TY - JOUR T1 - Estimating formation properties from early-time oscillatory water levels in a pumped well AN - 17630796; 4778813 AB - Hydrologists often attempt to estimate formation properties from aquifer tests for which only the hydraulic responses in a pumped well are available. Borehole storage, turbulent head losses, and borehole skin, however, can mask the hydraulic behavior of the formation inferred from the water level in the pumped well. Also, in highly permeable formations or in formations at significant depth below land surface, where there is a long column of water in the well casing, oscillatory water levels may arise during the onset of pumping to further mask formation responses in the pumped well. Usually borehole phenomena are confined to the early stages of pumping or recovery, and late-time hydraulic data can be used to estimate formation properties. In many instances, however, early-time hydraulic data provide valuable information about the formation, especially if there are interferences in the late-time data. A mathematical model and its Laplace transform solution that account for inertial influences and turbulent head losses during pumping is developed for the coupled response between the pumped borehole and the formation. The formation is assumed to be homogeneous, isotropic, of infinite areal extent, and uniform thickness, with leakage from an overlying aquifer, and the screened or open interval of the pumped well is assumed to fully penetrate the pumped aquifer. Other mathematical models of aquifer flow can also be coupled with the equations describing turbulent head losses and the inertial effects on the water column in the pumped well. The mathematical model developed in this paper is sufficiently general to consider both underdamped conditions for which oscillations arise, and overdamped conditions for which there are no oscillations. Through numerical inversion of the Laplace transform solution, type curves from the mathematical model are developed to estimate formation properties through comparison with the measured hydraulic response in the pumped well. The mathematical model is applied to estimate formation properties from a singlewell test conducted near Waialua, Oahu, Hawaii. At this site, both the drawdown and recovery showed oscillatory water levels in the pumped well, and a step-drawdown test showed that approximately 86% of the drawdown is attributed to turbulent head losses. Analyses at this site using late-time drawdown data were confounded by the noise present in the measured water levels due primarily to nearby irrigation wells and ocean tides. By analyzing the early-time oscillatory recovery data at the Waialua site, upper and lower bounds were placed on the transmissivity, T, storage coefficient, S, and the leakance of the confining unit, K'/B'. The upper and lower bounds on T differ by a factor of 2. Upper and lower bounds on S and K'/B' are much larger, because drawdown stabilized relatively quickly after the onset of pumping. JF - Journal of Hydrology (Amsterdam) AU - Shapiro, A M AU - Oki, D S AD - US Geological Survey, 431 National Center, Reston, VA 20192, USA, ashapiro@usgs.gov Y1 - 2000/09/10/ PY - 2000 DA - 2000 Sep 10 SP - 91 EP - 108 VL - 236 IS - 1-2 SN - 0022-1694, 0022-1694 KW - LePlace equations KW - Water Resources Abstracts; Aqualine Abstracts KW - Abstraction KW - Geohydrologic Units KW - Drawdown KW - Transmission KW - Hydrogeology KW - Groundwater Mining KW - Transmissivity KW - Permeability KW - Groundwater (see also Aquifers) KW - Geohydrology KW - Aquifer Characteristics KW - Aquifer Testing KW - Groundwater KW - Permeation KW - AQ 00001:Water Resources and Supplies KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17630796?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology+%28Amsterdam%29&rft.atitle=Estimating+formation+properties+from+early-time+oscillatory+water+levels+in+a+pumped+well&rft.au=Shapiro%2C+A+M%3BOki%2C+D+S&rft.aulast=Shapiro&rft.aufirst=A&rft.date=2000-09-10&rft.volume=236&rft.issue=1-2&rft.spage=91&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology+%28Amsterdam%29&rft.issn=00221694&rft_id=info:doi/10.1016%2FS0022-1694%2800%2900283-3 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aquifer Testing; Aquifer Characteristics; Transmissivity; Drawdown; Groundwater; Geohydrology; Groundwater Mining; Permeability; Geohydrologic Units; Transmission; Groundwater (see also Aquifers); Hydrogeology; Abstraction; Permeation DO - http://dx.doi.org/10.1016/S0022-1694(00)00283-3 ER - TY - JOUR T1 - Uranium content and leachable fraction of fluorspars. AN - 71776242; 10949254 AB - Much attention in the radiological health community has recently focused on the management and regulation of naturally occurring radioactive materials. Although uranium-bearing minerals are present in a variety of fluorspar deposits, their potential consideration as naturally occurring radioactive materials has received only limited recognition. The uranium content of 28 samples of acid- and cryolite-grade (>97% CaF2) fluorspar from the National Defense Stockpile was found to range from 120 to 24,200 microg kg(-1), with a mean of 2,145 microg kg(-1). As a point of comparison, the average concentration of uranium in the upper crust of the earth is about 2,500 microg kg(-1). Leachability of this uranium was assessed by means of the Toxicity Characteristic Leaching Procedure (TCLP). The TCLP extractable fraction ranged from 1 to 98%, with a mean of 24% of the total uranium. The typically low concentrations of uranium seen in these materials probably reflects the removal of uranium-bearing mineral phases during the beneficiation of the crude fluorspar ore to achieve industrial specifications. Future NORM studies should examine crude fluorspar ores and flotation tailings. JF - Health physics AU - Landa, E R AU - Councell, T B AD - US Geological Survey, Reston, VA 20192, USA. erlanda@usgs.gov Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 286 EP - 290 VL - 79 IS - 3 SN - 0017-9078, 0017-9078 KW - Minerals KW - 0 KW - Radioactive Waste KW - Soil Pollutants, Radioactive KW - Uranium KW - 4OC371KSTK KW - Index Medicus KW - United States KW - Humans KW - Mining KW - Minerals -- analysis KW - Uranium -- analysis KW - Soil Pollutants, Radioactive -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71776242?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Uranium+content+and+leachable+fraction+of+fluorspars.&rft.au=Landa%2C+E+R%3BCouncell%2C+T+B&rft.aulast=Landa&rft.aufirst=E&rft.date=2000-09-01&rft.volume=79&rft.issue=3&rft.spage=286&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-08-28 N1 - Date created - 2000-08-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - New vertebrate ichnofossil localities from national parks in the Western United States AN - 52031643; 2003-010243 JF - Journal of Vertebrate Paleontology AU - Santucci, Vincent L AU - Kirkland, James I AU - Hunt, Adrian P AU - Smith, Joshua A AU - Nyborg, Torrey G A2 - Prothero, Donald R. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 67 PB - University of Oklahoma, Norman, OK VL - 20 IS - 3, Suppl. SN - 0272-4634, 0272-4634 KW - United States KW - fossil localities KW - Diapsida KW - Cretaceous KW - Death Valley National Park KW - Zion National Park KW - ichnofossils KW - Glen Canyon Group KW - Navajo Formation KW - Cenozoic KW - California KW - Archosauria KW - Copper Canyon Formation KW - Theropoda KW - Cedar Mountain Formation KW - Western U.S. KW - age KW - Moab Tongue Member KW - Kayenta Formation KW - dinosaurs KW - Whitmore Point Member KW - Hemphillian KW - Lower Cretaceous KW - Chordata KW - biodiversity KW - Upper Jurassic KW - Jurassic KW - assemblages KW - Mammalia KW - Mesozoic KW - Reptilia KW - Tertiary KW - Arches National Park KW - K/Ar KW - Neogene KW - Entrada Sandstone KW - Saurischia KW - Utah KW - Vertebrata KW - Moenave Formation KW - Tetrapoda KW - 11:Vertebrate paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52031643?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Vertebrate+Paleontology&rft.atitle=New+vertebrate+ichnofossil+localities+from+national+parks+in+the+Western+United+States&rft.au=Santucci%2C+Vincent+L%3BKirkland%2C+James+I%3BHunt%2C+Adrian+P%3BSmith%2C+Joshua+A%3BNyborg%2C+Torrey+G&rft.aulast=Santucci&rft.aufirst=Vincent&rft.date=2000-09-01&rft.volume=20&rft.issue=3%2C+Suppl.&rft.spage=67&rft.isbn=&rft.btitle=&rft.title=Journal+of+Vertebrate+Paleontology&rft.issn=02724634&rft_id=info:doi/ L2 - http://www.bioone.org/loi/vrpa LA - English DB - GeoRef N1 - Conference title - Sixtieth annual meeting of the Society of Vertebrate Paleontology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - age; Arches National Park; Archosauria; assemblages; biodiversity; California; Cedar Mountain Formation; Cenozoic; Chordata; Copper Canyon Formation; Cretaceous; Death Valley National Park; Diapsida; dinosaurs; Entrada Sandstone; fossil localities; Glen Canyon Group; Hemphillian; ichnofossils; Jurassic; K/Ar; Kayenta Formation; Lower Cretaceous; Mammalia; Mesozoic; Moab Tongue Member; Moenave Formation; Navajo Formation; Neogene; Reptilia; Saurischia; Tertiary; Tetrapoda; Theropoda; United States; Upper Jurassic; Utah; Vertebrata; Western U.S.; Whitmore Point Member; Zion National Park ER - TY - JOUR T1 - Photogrammetric documentation of a Middle Jurassic dinosaur tracksite in the Sundance Formation of the Bighorn Basin of Wyoming AN - 52027900; 2003-010182 JF - Journal of Vertebrate Paleontology AU - Matthews, Neffra AU - Breithaupt, B H AU - Southwell, E H A2 - Prothero, Donald R. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 57 PB - University of Oklahoma, Norman, OK VL - 20 IS - 3, Suppl. SN - 0272-4634, 0272-4634 KW - United States KW - Chordata KW - technology KW - Upper Jurassic KW - Jurassic KW - ichnofossils KW - tracks KW - photogrammetry KW - geodesy KW - Middle Jurassic KW - Mesozoic KW - Reptilia KW - Wyoming KW - Sundance Formation KW - geographic information systems KW - Bighorn Basin KW - information systems KW - dinosaurs KW - Vertebrata KW - Tetrapoda KW - Red Gulch Dinosaur Tracksite KW - 11:Vertebrate paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52027900?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Vertebrate+Paleontology&rft.atitle=Photogrammetric+documentation+of+a+Middle+Jurassic+dinosaur+tracksite+in+the+Sundance+Formation+of+the+Bighorn+Basin+of+Wyoming&rft.au=Matthews%2C+Neffra%3BBreithaupt%2C+B+H%3BSouthwell%2C+E+H&rft.aulast=Matthews&rft.aufirst=Neffra&rft.date=2000-09-01&rft.volume=20&rft.issue=3%2C+Suppl.&rft.spage=57&rft.isbn=&rft.btitle=&rft.title=Journal+of+Vertebrate+Paleontology&rft.issn=02724634&rft_id=info:doi/ L2 - http://www.bioone.org/loi/vrpa LA - English DB - GeoRef N1 - Conference title - Sixtieth annual meeting of the Society of Vertebrate Paleontology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Bighorn Basin; Chordata; dinosaurs; geodesy; geographic information systems; ichnofossils; information systems; Jurassic; Mesozoic; Middle Jurassic; photogrammetry; Red Gulch Dinosaur Tracksite; Reptilia; Sundance Formation; technology; Tetrapoda; tracks; United States; Upper Jurassic; Vertebrata; Wyoming ER - TY - JOUR T1 - A new dinosaur bonebed in the Morrison Formation of Bighorn County, Wyoming AN - 51325168; 2003-010028 JF - Journal of Vertebrate Paleontology AU - Breithaupt, B H AU - Fox, Marilyn AU - Fraser, N C AU - Matthews, N A AU - Wilborn, B A2 - Prothero, Donald R. Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 31 PB - University of Oklahoma, Norman, OK VL - 20 IS - 3, Suppl. SN - 0272-4634, 0272-4634 KW - United States KW - fossil localities KW - Diapsida KW - Shell Wyoming KW - bone beds KW - Camarasaurus KW - Barosaurus KW - Sauropoda KW - Archosauria KW - Apatosaurus KW - sedimentary rocks KW - bones KW - Morrison Formation KW - dinosaurs KW - Diplodocus KW - Chordata KW - Upper Jurassic KW - Jurassic KW - photogrammetry KW - Mesozoic KW - Sauropodomorpha KW - Reptilia KW - Wyoming KW - Saurischia KW - Big Horn County Wyoming KW - Vertebrata KW - Diplodocidae KW - Tetrapoda KW - 11:Vertebrate paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51325168?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Vertebrate+Paleontology&rft.atitle=A+new+dinosaur+bonebed+in+the+Morrison+Formation+of+Bighorn+County%2C+Wyoming&rft.au=Breithaupt%2C+B+H%3BFox%2C+Marilyn%3BFraser%2C+N+C%3BMatthews%2C+N+A%3BWilborn%2C+B&rft.aulast=Breithaupt&rft.aufirst=B&rft.date=2000-09-01&rft.volume=20&rft.issue=3%2C+Suppl.&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=Journal+of+Vertebrate+Paleontology&rft.issn=02724634&rft_id=info:doi/ L2 - http://www.bioone.org/loi/vrpa LA - English DB - GeoRef N1 - Conference title - Sixtieth annual meeting of the Society of Vertebrate Paleontology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Apatosaurus; Archosauria; Barosaurus; Big Horn County Wyoming; bone beds; bones; Camarasaurus; Chordata; Diapsida; dinosaurs; Diplodocidae; Diplodocus; fossil localities; Jurassic; Mesozoic; Morrison Formation; photogrammetry; Reptilia; Saurischia; Sauropoda; Sauropodomorpha; sedimentary rocks; Shell Wyoming; Tetrapoda; United States; Upper Jurassic; Vertebrata; Wyoming ER - TY - JOUR T1 - Citizen Initiated Beachfront Lighting Ordinance to Protect Marine Turtles in Franklin County, Florida, USA AN - 20582065; 9286576 AB - Lighting ordinances for the protection of marine turtles often meet strong opposition from local citizens, businesses, and government agencies. Only 15 of Florida's 35 coastal counties have enacted lighting ordinances for marine turtle protection. Franklin County was the first county to pass a lighting ordinance for the protection of marine turtles in Northwest Florida (NWFL). Efforts in several nearby counties have failed. A partnership between a motivated local attorney, a citizen group and interested state and federal agencies brought together the desire and expertise to draft and pass Franklin County Ordinance No. 98-11, "Lighting Ordinance for Marine Turtle Protection of Franklin County, Florida" (ordinance). We report the details of our efforts in hopes that it facilitates similar ordinances in other locations. JF - NOAA Technical Memorandum NMFS SEFSC AU - Lewis, TE AU - Summers, T M AU - Sanders, B AD - United States Fish and Wildlife Service (USFWS), St. Vincent NWR, P.O. Box 447, Apalachicola, FL 32329, USA A2 - Kalb, Heather A2 - Wibbels, Thane Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 203 PB - National Marine Fisheries Service - SEFSC, Miami Laboratory - Sea Turtle Program 75 Virginia Beach Drive Miami FL 33149 USA IS - 443 KW - ASFA 3: Aquatic Pollution & Environmental Quality; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - ASW, USA, Florida KW - Aquatic reptiles KW - Governments KW - Q5 08523:Conservation, wildlife management and recreation KW - O 4090:Conservation and Environmental Protection KW - Q1 08321:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20582065?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=NOAA+Technical+Memorandum+NMFS+SEFSC&rft.atitle=Citizen+Initiated+Beachfront+Lighting+Ordinance+to+Protect+Marine+Turtles+in+Franklin+County%2C+Florida%2C+USA&rft.au=Lewis%2C+TE%3BSummers%2C+T+M%3BSanders%2C+B&rft.aulast=Lewis&rft.aufirst=TE&rft.date=2000-09-01&rft.volume=&rft.issue=443&rft.spage=203&rft.isbn=&rft.btitle=&rft.title=NOAA+Technical+Memorandum+NMFS+SEFSC&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-05-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Aquatic reptiles; Governments; ASW, USA, Florida ER - TY - JOUR T1 - Buck Island and Back -- Hawksbill Turtles Make Their Move AN - 20575696; 9286535 AB - During the past eleven years the National Park Service's Buck Island Sea Turtle Research Program has participated in a series of research activities to answer the question "do hawksbill sea turtles make reproductive migrations?" We approached the question with both low and high tech methodologies. Low tech methods include saturation tagging of all nesting hawksbill turtles coupled with the promise of a long distance tag recovery. Three out of 118 nesting hawksbill females tagged on Buck Island Reef nesting beaches have been recaptured on their foraging grounds off Central America and Cuba. JF - NOAA Technical Memorandum NMFS SEFSC AU - Hillis-Starr, Z AU - Coyne, M AU - Monaco, M AD - National Park Service, Buck Island Reef National Monument, 2100 Church St., Christiansted, St. Croix, VI 00820-4611 A2 - Kalb, Heather A2 - Wibbels, Thane Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 159 PB - National Marine Fisheries Service - SEFSC, Miami Laboratory - Sea Turtle Program 75 Virginia Beach Drive Miami FL 33149 USA IS - 443 KW - ASFA 3: Aquatic Pollution & Environmental Quality; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Foraging behaviour KW - ASW, Lesser Antilles, US Virgin Is., Buck I. KW - Nesting KW - Aquatic reptiles KW - Migrations KW - Reproductive behaviour KW - Tagging KW - ASW, Central America KW - ASW, Greater Antilles, Cuba KW - Q5 08523:Conservation, wildlife management and recreation KW - Q1 08421:Migrations and rhythms KW - O 4090:Conservation and Environmental Protection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20575696?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=NOAA+Technical+Memorandum+NMFS+SEFSC&rft.atitle=Buck+Island+and+Back+--+Hawksbill+Turtles+Make+Their+Move&rft.au=Hillis-Starr%2C+Z%3BCoyne%2C+M%3BMonaco%2C+M&rft.aulast=Hillis-Starr&rft.aufirst=Z&rft.date=2000-09-01&rft.volume=&rft.issue=443&rft.spage=159&rft.isbn=&rft.btitle=&rft.title=NOAA+Technical+Memorandum+NMFS+SEFSC&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-05-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Foraging behaviour; Nesting; Aquatic reptiles; Migrations; Tagging; Reproductive behaviour; ASW, Lesser Antilles, US Virgin Is., Buck I.; ASW, Central America; ASW, Greater Antilles, Cuba ER - TY - JOUR T1 - Quantifying time-varying ground-water discharge and recharge in wetlands of the Northern Florida Everglades AN - 18159149; 4786737 AB - Developing a more thorough understanding of water and chemical budgets in wetlands depends in part on our ability to quantify time-varying interactions between ground water and surface water. We used a combined water and solute mass balance approach to estimate time-varying ground-water discharge and recharge in the Everglades Nutrient Removal project (ENR), a relatively large constructed wetland (1544 hectare) built for removing nutrients from agricultural drainage in the northern Everglades in South Florida, USA. Over a 4-year period (1994 through 1998), ground-water recharge averaged 13.4 hectare-meter per day (ha-m/day) or 0.9 cm/day, which is approximately 31% of surface water pumped into the ENR for treatment. In contrast, ground-water discharge was much smaller (1.4 ha-m/day, or 0.09 cm/day, or 2.8% of water input to ENR for treatment). Using a water-balance approach alone only allowed net ground-water exchange (discharge - recharge) to be estimated (-12 plus or minus 2.4 ha-m/day). Discharge and recharge were individually determined by combining a chloride mass balance with the water balance. For a variety of reasons, the ground-water discharge estimated by the combined mass balance approach was not reliable (1.4 plus or minus 37 ha-m/day). As a result, ground-water interactions could only be reliably estimated by comparing the mass-balance results with other independent approaches, including direct seepage-meter measurements and previous estimates using ground-water modeling. All three independent approaches provided similar estimates of average ground-water recharge, ranging from 13 to 14 ha-m/day. There was also relatively good agreement between ground-water discharge estimates for the mass balance and seepage meter methods, 1.4 and 0.9 ha-m/day, respectively. However, ground-water-flow modeling provided an average discharge estimate that was approximately a factor of four higher (5.4 ha-m/day) than the other two methods. Our study developed an initial understanding of how the design and operation of the ENR increases interactions between ground water and surface water. A considerable portion of recharged ground water (73%) was collected and returned to the ENR by a seepage canal. Additional recharge that was not captured by the seepage canal only occurred when pumped inflow rates to ENR (and ENR water levels) were relatively high. Management of surface water in the northern Everglades therefore clearly has the potential to increase interactions with ground water. JF - Wetlands AU - Choi, Jungyill AU - Harvey, J W AD - U.S. Geological Survey, MS 430 Reston, VA 20192, USA, jchoi@usgs.gov Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 500 EP - 511 VL - 20 IS - 3 SN - 0277-5212, 0277-5212 KW - USA, Florida, Everglades KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Water Management KW - Groundwater Discharge KW - Surface water KW - Hydrologic Budget KW - Nutrients KW - Surface Water KW - Seepage KW - Ground water KW - Hydrology KW - Wetlands KW - Nutrients (mineral) KW - Seepages KW - Groundwater Recharge KW - SW 0810:General KW - Q2 09171:Dynamics of lakes and rivers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18159149?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wetlands&rft.atitle=Quantifying+time-varying+ground-water+discharge+and+recharge+in+wetlands+of+the+Northern+Florida+Everglades&rft.au=Choi%2C+Jungyill%3BHarvey%2C+J+W&rft.aulast=Choi&rft.aufirst=Jungyill&rft.date=2000-09-01&rft.volume=20&rft.issue=3&rft.spage=500&rft.isbn=&rft.btitle=&rft.title=Wetlands&rft.issn=02775212&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Surface water; Ground water; Hydrology; Wetlands; Nutrients (mineral); Seepages; Water Management; Groundwater Discharge; Hydrologic Budget; Nutrients; Surface Water; Seepage; Groundwater Recharge ER - TY - JOUR T1 - Classification Methods for Monitoring Arctic Sea Ice Using OKEAN Passive/Active Two-Channel Microwave Data AN - 18012852; 4810291 AB - This paper presents methods for classifying Arctic sea ice using both passive and active (2-channel) microwave imagery acquired by the Russian OKEAN 01 polar-orbiting satellite series. Methods and results are compared to sea ice classifications derived from nearly coincident Special Sensor Microwave Imager (SSM/I) and Advanced Very High Resolution Radiometer (AVHRR) image data of the Barents, Kara, and Laptev Seas. The Russian OKEAN 01 satellite data were collected over weekly intervals during October 1995 through December 1997. Methods are presented for calibrating, georeferencing and classifying the raw active radar and passive microwave OKEAN 01 data, and for correcting the OKEAN 01 microwave radiometer calibration wedge based on concurrent 37 GHz horizontal polarization SSM/I brightness temperature data. Sea ice type and ice concentration algorithms utilized OKEAN's two-channel radar and passive microwave data in a linear mixture model based on the measured values of brightness temperature and radar backscatter, together with a priori knowledge about the scattering parameters and natural emissivities of basic sea ice types. OKEAN 01 data and algorithms tended to classify lower concentrations of young or first-year sea ice when concentrations were less than 60%, and to produce higher concentrations of multi-year sea ice when concentrations were greater than 40%, when compared to estimates produced from SSM/I data. Overall, total sea ice concentration maps derived independently from OKEAN 01, SSM/I, and AVHRR satellite imagery were all highly correlated, with uniform biases, and mean differences in total ice concentration of less than four percent (sd<15%). JF - Remote Sensing of Environment AU - Belchansky, GI AU - Douglas, D C AD - Alaska Biological Science Center, U.S. Geological Survey 1011 East Tudor Road, Anchorage, AK 99503, USA, david_douglas@usgs.gov Y1 - 2000/09// PY - 2000 DA - September 2000 SP - 307 EP - 322 VL - 73 IS - 3 SN - 0034-4257, 0034-4257 KW - Russia KW - Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Remote Sensing KW - Arctic zone KW - Surface radiation temperature KW - PNE, Russia KW - PNE, Barents Sea KW - Microwaves KW - Classification KW - Sea Ice KW - Ice observations KW - Mapping KW - Arctic KW - Data Interpretation KW - Microwave radar KW - Satellite Technology KW - PNE, Kara Sea KW - Backscatter KW - PNE, Laptev Sea KW - Satellite sensing KW - Performance Evaluation KW - Sea ice KW - Comparison Studies KW - Radar KW - Ice cover KW - O 2010:Physical Oceanography KW - SW 5040:Data acquisition KW - Q2 09150:Ice KW - SW 0820:Snow, ice and frost UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18012852?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remote+Sensing+of+Environment&rft.atitle=Classification+Methods+for+Monitoring+Arctic+Sea+Ice+Using+OKEAN+Passive%2FActive+Two-Channel+Microwave+Data&rft.au=Belchansky%2C+GI%3BDouglas%2C+D+C&rft.aulast=Belchansky&rft.aufirst=GI&rft.date=2000-09-01&rft.volume=73&rft.issue=3&rft.spage=307&rft.isbn=&rft.btitle=&rft.title=Remote+Sensing+of+Environment&rft.issn=00344257&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Satellite sensing; Sea ice; Backscatter; Classification; Ice observations; Arctic zone; Microwave radar; Surface radiation temperature; Ice cover; Remote Sensing; Satellite Technology; Performance Evaluation; Microwaves; Comparison Studies; Radar; Sea Ice; Mapping; Data Interpretation; Arctic; PNE, Kara Sea; PNE, Barents Sea; PNE, Laptev Sea; PNE, Russia ER - TY - JOUR T1 - The future of GIS and water resources AN - 17904211; 5140145 AB - The strength of GIS is its geospatial data model, which is a better representation of the world than the tabular model it replaced. Representing a network of streams as a collection of lines, for example, lets us see how stream locations match land use and other spatial characteristics of a watershed. Nevertheless, simple connected lines still do not adequately represent the richness of a real stream network. Real streams become wide rivers, flow over dams, split into braided channels, or flow into lakes, and our models must account for these characteristics. JF - Water Resources Impact AU - Lanfear, K J AD - U.S. Geological Survey, 12201 Sunrise Valley Dr., MS 605, Reston, VA 20190, USA, lanfear@usgs.gov Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 9 EP - 12 VL - 2 IS - 5 SN - 1522-3175, 1522-3175 KW - Aqualine Abstracts KW - Geomorphology KW - Drainage KW - Surface water (see also Lakes, Ponds, Streams) KW - Streams (in natural channels) KW - Runoff KW - Geographical Information Systems KW - AQ 00001:Water Resources and Supplies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17904211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Impact&rft.atitle=The+future+of+GIS+and+water+resources&rft.au=Lanfear%2C+K+J&rft.aulast=Lanfear&rft.aufirst=K&rft.date=2000-09-01&rft.volume=2&rft.issue=5&rft.spage=9&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Impact&rft.issn=15223175&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Geomorphology; Drainage; Surface water (see also Lakes, Ponds, Streams); Streams (in natural channels); Runoff; Geographical Information Systems ER - TY - JOUR T1 - Phreatophyte Influence on Reductive Dechlorination in a Shallow Aquifer Contaminated with Trichloroethene (TCE) AN - 17847342; 4880408 AB - Phytoremediation uses the natural ability of plants to degrade contaminants in groundwater. A field demonstration designed to remediate aerobic shallow groundwater contaminated with trichloroethene began in April 1996 with the planting of cottonwood trees, a short-rotation woody crop, over an approximately 0.2-ha area at the Naval Air Station, Fort Worth, Texas. The project was developed to demonstrate capture of contaminated groundwater and degradation of contaminants by phreatophytes. Analyses from samples of groundwater collected from July 1997 to June 1998 indicate that tree roots have the potential to create anaerobic conditions in the groundwater that will facilitate degradation of trichloroethene by microbially mediated reductive dechlorination. Organic matter from root exudates and decay of tree roots probably stimulate microbial activity, consuming dissolved oxygen. Dissolved oxygen concentrations, which varied across the site, were smallest near a mature cottonwood tree (about 20 years of age and 60 meters southwest of the cottonwood plantings) where degradation products of trichloroethene were measured. Oxidation of organic matter is the primary microbially mediated reaction occurring in the groundwater beneath the planted trees whereas near the mature cottonwood tree, data indicate that methanogenesis is the most probable reaction occurring. Reductive dechlorination in groundwater either is not occurring or is not a primary process away from the mature tree. Carbon-13 isotope values for trichloroethene are nearly identical at locations away from the mature tree, further confirming that dechlorination is not occurring at the site. JF - International Journal of Phytoremediation AU - Lee, R W AU - Jones, SA AU - Kuniansky, EL AU - Harvey, G AU - Lollar, B S AU - Slater, G F AD - U.S. Geological Survey, Water Resources Division, Dallas, TX 75202, USA, rwlee@usgs.gov Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 193 EP - 211 VL - 2 IS - 3 SN - 1522-6514, 1522-6514 KW - USA, Texas, Fort Worth KW - trichloroethene KW - Water Resources Abstracts; Pollution Abstracts KW - Aquifers KW - Dechlorination KW - Phytoremediation KW - Organic matter KW - Groundwater pollution KW - Microbial activity KW - Military KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17847342?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Phytoremediation&rft.atitle=Phreatophyte+Influence+on+Reductive+Dechlorination+in+a+Shallow+Aquifer+Contaminated+with+Trichloroethene+%28TCE%29&rft.au=Lee%2C+R+W%3BJones%2C+SA%3BKuniansky%2C+EL%3BHarvey%2C+G%3BLollar%2C+B+S%3BSlater%2C+G+F&rft.aulast=Lee&rft.aufirst=R&rft.date=2000-09-01&rft.volume=2&rft.issue=3&rft.spage=193&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Phytoremediation&rft.issn=15226514&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Aquifers; Dechlorination; Phytoremediation; Organic matter; Groundwater pollution; Microbial activity; Military ER - TY - JOUR T1 - Shifts in Depth Distributions of Alewives, Rainbow Smelt, and Age-2 Lake Trout in Southern Lake Ontario following Establishment of Dreissenids AN - 17821530; 4856738 AB - In the mid-1990s, biologists conducting assessments of fish stocks in Lake Ontario reported finding alewives Alosa pseudoharengus, rainbow smelt Osmerus mordax, and juvenile lake trout Salvelinus namaycush at greater depths than in the mid-1980s. To determine if depth distributions shifted coincident with the early 1990s colonization of Lake Ontario by exotic Dreissena mussels, we calculated mean depth of capture for each of the three species during trawl surveys conducted annually during 1978-1997 and examined the means for significant deviations from established patterns. We found that mean capture depth of alewives, rainbow smelt, and age-2 lake trout shifted deeper during the build up of the dreissenid population in Lake Ontario but that timing of the shift varied among seasons and species. Depth shifts occurred first for rainbow smelt and age-2 lake trout in June 1991. In 1992, alewives shifted deeper in June followed by age-2 lake trout in July-August. Finally, in 1993 and 1994, the distribution of lake trout and alewives shifted in April-May. Reasons why the three fishes moved to deeper water are not clear, but changes in distribution were not linked to temperature. Mean temperature of capture after the depth shift was significantly lower than before the depth shift except for alewives in April-May. Movement of alewives, rainbow smelt, and age-2 lake trout to colder, deeper water has the potential to alter growth and reproduction schedules by exposing the fish to different temperature regimes and to alter the food chain, increasing predation on Mysis relicta in deep water and decreasing alewife predation on lake trout fry over nearshore spawning grounds in spring. JF - Transactions of the American Fisheries Society AU - O'Gorman, R AU - Elrod, J H AU - Owens, R W AU - Schneider, C P AU - Eckert, TH AU - Lantry, B F AD - U.S. Geological Survey, Biological Resources Division, Great Lakes Science Center, Lake Ontario Biological Station, 17 Lake Street, Oswego, New York 13126, USA, robert_o'gorman@usgs.gov Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 1096 EP - 1106 VL - 129 IS - 5 SN - 0002-8487, 0002-8487 KW - Alewife KW - Atlantic salmon KW - Canada KW - Lake trout KW - Rainbow smelt KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality KW - Vertical distribution KW - Ecological distribution KW - Mysis relicta KW - Freshwater KW - Population establishment KW - Freshwater fish KW - Dreissena KW - Salmo salar KW - Canada, Ontario L. KW - Colonization KW - Freshwater molluscs KW - Alosa pseudoharengus KW - Osmerus mordax KW - Population levels KW - Salvelinus namaycush KW - Introduced species KW - Q1 08483:Species interactions: general KW - Q1 08341:General KW - D 04668:Fish KW - Q5 08521:Mechanical and natural changes KW - Q1 08261:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17821530?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Shifts+in+Depth+Distributions+of+Alewives%2C+Rainbow+Smelt%2C+and+Age-2+Lake+Trout+in+Southern+Lake+Ontario+following+Establishment+of+Dreissenids&rft.au=O%27Gorman%2C+R%3BElrod%2C+J+H%3BOwens%2C+R+W%3BSchneider%2C+C+P%3BEckert%2C+TH%3BLantry%2C+B+F&rft.aulast=O%27Gorman&rft.aufirst=R&rft.date=2000-09-01&rft.volume=129&rft.issue=5&rft.spage=1096&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Vertical distribution; Colonization; Freshwater molluscs; Ecological distribution; Freshwater fish; Introduced species; Population levels; Population establishment; Alosa pseudoharengus; Osmerus mordax; Salvelinus namaycush; Mysis relicta; Dreissena; Salmo salar; Canada, Ontario L.; Freshwater ER - TY - JOUR T1 - Habitat and landscape correlates of presence, density, and species richness of birds wintering in forest fragments in Ohio AN - 17815302; 4847518 AB - We investigated the distribution of wintering woodland bird species in 47 very small, isolated, woodland fragments (0.54-6.01 ha) within an agricultural landscape in north-central Ohio. Our objectives were to determine correlations between temporal, habitat, and landscape variables and avian presence, density, and species richness within the smallest woodlots occupied by such species. Our results suggest that even common species are sensitive to variation in habitat, landscape, and season. Woodlot area explained the most variation in presence, density, and species richness. Shrub cover was also an important predictor variable for presence of the smallest resident birds. Shrub cover might function as both a refuge from predators and as a windbreak, reducing thermal costs in a flat, open landscape. Landscape factors related to isolation and connectedness were also correlated with species presence and density. The species composition of the community changed through the winter, as did the density of individual species, suggesting that the winter season may play an important role in determining the distributions of bird populations across woodlots. The models presented here for Ohio birds in this specific landscape may have biological inference for other species in similar landscapes. JF - Wilson Bulletin AU - Doherty, PF Jr AU - Grubb, TC Jr AD - USGS Patuxent Research Center, Bird Banding Laboratory, 12100 Beech Forest Road, Ste-4037, Laurel, MD 20708-4037, USA, Doherty.20@osu.edu Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 388 EP - 394 VL - 112 IS - 3 SN - 0043-5643, 0043-5643 KW - Birds KW - USA, Ohio KW - Ecology Abstracts KW - Aves KW - Agricultural ecosystems KW - Forests KW - Habitat fragmentation KW - Species richness KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17815302?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wilson+Bulletin&rft.atitle=Habitat+and+landscape+correlates+of+presence%2C+density%2C+and+species+richness+of+birds+wintering+in+forest+fragments+in+Ohio&rft.au=Doherty%2C+PF+Jr%3BGrubb%2C+TC+Jr&rft.aulast=Doherty&rft.aufirst=PF&rft.date=2000-09-01&rft.volume=112&rft.issue=3&rft.spage=388&rft.isbn=&rft.btitle=&rft.title=Wilson+Bulletin&rft.issn=00435643&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; Species richness; Forests; Habitat fragmentation; Agricultural ecosystems ER - TY - JOUR T1 - Comparing strengths of geographic and nongeographic classifications of stream benthic macroinvertebrates in the Mid-Atlantic Highlands, USA AN - 17743751; 4805051 AB - The US Environmental Protection Agency's (USEPA) Environmental Monitoring and Assessment Program (EMAP) sampled similar to 500 wadeable streams in the Mid-Atlantic Highlands region of the US during the late spring of 1993 to 1995 for a variety of physical, chemical, and biological indicators of environmental condition. Eighty-eight sites that were minimally affected by human activities were chosen to determine the extent to which geographical and stream-based classifications accounted for variation in the composition of riffle macroinvertebrate assemblages. Bray-Curtis similarities among sites were calculated from the relative abundance of macroinvertebrates to assess the strength of classifications based on geography (ecoregions and catchments), habitat (slope and stream order), and water chemistry (conductivity). For comparison, a taxonomic classification (two-way indicator species analysis, TWINSPAN) and a gradient analysis (correspondence analysis, CA) were performed on the macroinvertebrate data. To assess the effect of taxonomic resolution, all analyses were completed at the family level and to lowest practical taxon. The large overall variation within and among ecoregions resulted in a low average classification strength (CS) of ecoregions, although some ecoregions had high CS. Stream order had the highest CS of the habitat and water chemistry classifications. Ecoregion CS increased, however, when stream sites were 1 super(st) stratified by stream order (ecoregions nested within stream order). Nested ecoregion CS did not increase within 1 super(st)-order streams, yet increased within 2 super(nd)- and 3 super(rd)-order streams. CA ordinations and TWINSPAN classification showed a clear gradient of streams along stream size (order), with a clear separation of 1 super(st)- and 3 super(rd)-order streams based on macroinvertebrate composition. The ordinations did not, however, show a distinct clustering of sites on the basis of ecoregions. Overall, the lowest practical taxon level of identification resulted in a clearer pattern of sites in ordination space than did family-level identification, yet only a slight improvement in the different classifications (geographic, habitat, and water chemistry) based on average similarity. JF - Journal of the North American Benthological Society AU - Waite, IR AU - Herlihy, A T AU - Larsen, D P AU - Klemm, D J AD - US Geological Survey, 10615 SE Cherry Blossom Dr., Portland, Oregon 97216 USA, iwaite@usgs.gov Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 429 EP - 441 VL - 19 IS - 3 SN - 0887-3593, 0887-3593 KW - USA KW - ecoregion KW - Entomology Abstracts; Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Rivers KW - Catchment area KW - Classification systems KW - Biogeography KW - USA, Mid-Atlantic Region KW - Ecological distribution KW - Freshwater KW - Habitat KW - Water quality KW - Streams KW - Human impact KW - Community composition KW - Invertebrata KW - Zoobenthos KW - Q1 08382:Ecological techniques and apparatus KW - D 04310:Freshwater KW - Z 05210:Aquatic entomology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17743751?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+North+American+Benthological+Society&rft.atitle=Comparing+strengths+of+geographic+and+nongeographic+classifications+of+stream+benthic+macroinvertebrates+in+the+Mid-Atlantic+Highlands%2C+USA&rft.au=Waite%2C+IR%3BHerlihy%2C+A+T%3BLarsen%2C+D+P%3BKlemm%2C+D+J&rft.aulast=Waite&rft.aufirst=IR&rft.date=2000-09-01&rft.volume=19&rft.issue=3&rft.spage=429&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+North+American+Benthological+Society&rft.issn=08873593&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Classification systems; Catchment area; Rivers; Community composition; Biogeography; Ecological distribution; Zoobenthos; Water quality; Habitat; Streams; Human impact; Invertebrata; USA, Mid-Atlantic Region; Freshwater ER - TY - JOUR T1 - Responses of physical, chemical, and biological indicators of water quality to a gradient of agricultural land use in the Yakima River Basin, Washington AN - 17728280; 4793932 AB - The condition of 25 stream sites in the Yakima River Basin, Washington, were assessed by the U.S. Geological Survey's National Water-Quality Assessment Program. Multimetric condition indices were developed and used to rank sites on the basis of physical, chemical, and biological characteristics. These indices showed that sites in the Cascades and Eastern Cascades ecoregions were largely unimpaired. In contrast, all but two sites in the Columbia Basin ecoregion were impaired, some severely. Agriculture (nutrients and pesticides) was the primary factor associated with impairment and all impaired sites were characterized by multiple indicators of impairment. All indices of biological condition (fish, invertebrates, and algae) declined as agricultural intensity increased. The response exhibited by invertebrates and algae suggested a threshold response with conditions declining precipitously at relatively low levels of agricultural intensity and little response at moderate to high levels of agricultural intensity. This pattern of response suggests that the success of mitigation will vary depending upon where on the response curve the mitigation is undertaken. Because the form of the community condition response is critical to effective water-quality management, the National Water-Quality Assessment Program is conducting studies to examine the response of biota to gradients of land-use intensity and the relevance of these responses to water-quality management. These land-use gradient pilot studies will be conducted in several urban areas starting in 1999. JF - Environmental Monitoring and Assessment AU - Cuffney, T F AU - Meador, M R AU - Porter, S D AU - Gurtz, ME AD - U.S. Geological Survey, Water Resources Division, 3916 Sunset Ridge Road, Raleigh, NC 27607 USA, tcuffney@usgs.gov A2 - Sandhu, SS A2 - Melzian, BD A2 - Long, ER A2 - Whitford, WG A2 - Walton, BT Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 259 EP - 270 PB - Kluwer Academic Publishers, Postbus 17 Dordrecht 3300 AA Netherlands VL - 64 IS - 1 SN - 0167-6369, 0167-6369 KW - USA, Washington KW - USA, Washington, Yakima R. KW - USA, Washington, Yakima R. Basin KW - USA, Washington, Yakima River Basin KW - Toxicology Abstracts; Aqualine Abstracts; Water Resources Abstracts; Pollution Abstracts; Ecology Abstracts KW - Land Use KW - Agriculture KW - Water Pollution KW - Water Pollution Sources KW - Nutrients KW - Water quality KW - Streams KW - Biota KW - Agricultural practices KW - Water Quality Management KW - USA, Washington, Yakima R. basin KW - Pollution indicators KW - Urban areas KW - Freshwater pollution KW - Bioindicators KW - Environmental monitoring KW - Pesticides (see also Bactericides, Weedkillers) KW - Physicochemical properties KW - Aquatic ecosystems KW - Land use KW - Water quality control KW - Urban Areas KW - Pesticides KW - Nutrient sources KW - Pollution (Water) KW - SW 2060:Effects on water of human nonwater activities KW - X 24240:Miscellaneous KW - D 04801:Pollution monitoring and detection KW - P 2000:FRESHWATER POLLUTION KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17728280?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Responses+of+physical%2C+chemical%2C+and+biological+indicators+of+water+quality+to+a+gradient+of+agricultural+land+use+in+the+Yakima+River+Basin%2C+Washington&rft.au=Cuffney%2C+T+F%3BMeador%2C+M+R%3BPorter%2C+S+D%3BGurtz%2C+ME&rft.aulast=Cuffney&rft.aufirst=T&rft.date=2000-09-01&rft.volume=64&rft.issue=1&rft.spage=259&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Agricultural practices; Pesticides; Nutrient sources; Aquatic ecosystems; Water quality; Streams; Land use; Freshwater pollution; Environmental monitoring; Agriculture; Bioindicators; Biota; Physicochemical properties; Water quality control; Pesticides (see also Bactericides, Weedkillers); Nutrients; Pollution (Water); Pollution indicators; Urban areas; Land Use; Water Pollution; Water Pollution Sources; Urban Areas; Water Quality Management; USA, Washington, Yakima R. basin ER - TY - JOUR T1 - Distribution of the spotted bat (Euderma maculatum) in Nevada, including notes on reproduction AN - 17639203; 4787158 JF - Southwestern Naturalist AU - Geluso, K AD - United States Geological Survey, Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131, USA Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 347 EP - 351 VL - 45 IS - 3 SN - 0038-4909, 0038-4909 KW - Spotted bat KW - USA, Nevada KW - Ecology Abstracts KW - Ecological distribution KW - Reproduction KW - Euderma maculatum KW - D 04672:Mammals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17639203?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Southwestern+Naturalist&rft.atitle=Distribution+of+the+spotted+bat+%28Euderma+maculatum%29+in+Nevada%2C+including+notes+on+reproduction&rft.au=Geluso%2C+K&rft.aulast=Geluso&rft.aufirst=K&rft.date=2000-09-01&rft.volume=45&rft.issue=3&rft.spage=347&rft.isbn=&rft.btitle=&rft.title=Southwestern+Naturalist&rft.issn=00384909&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Euderma maculatum; Ecological distribution; Reproduction ER - TY - JOUR T1 - A 22,000-year record of monsoonal precipitation from northern Chile's Atacama desert AN - 17568510; 4756183 AB - Fossil rodent middens and wetland deposits from the central Atacama Desert (22 degree to 24 degree S) indicate increasing summer precipitation, grass cover, and groundwater levels from 16.2 to 10.5 calendar kiloyears before present (ky B.P.). Higher elevation shrubs and summer-flowering grasses expanded downslope across what is now the edge of Absolute Desert, a broad expanse now largely devoid of rainfall and vegetation. Paradoxically, this pluvial period coincided with the summer insolation minimum and reduced adiabatic heating over the central Andes. Summer precipitation over the central Andes and central Atacama may depend on remote teleconnections between seasonal insolation forcing in both hemispheres, the Asian monsoon, and Pacific sea surface temperature gradients. A less pronounced episode of higher groundwater levels in the central Atacama from 8 to 3 ky B.P. conflicts with an extreme lowstand of Lake Titicaca, indicating either different climatic forcing or different response times and sensitivities to climatic change. JF - Science (Washington) AU - Betancourt, J L AU - Latorre, C AU - Rech, JA AU - Quade, J AU - Rylander, KA AD - US Geol. Survey, 1675 West Anklam Rd., Tucson, AZ 85745, USA, jlbetan@usgs.gov Y1 - 2000/09/01/ PY - 2000 DA - 2000 Sep 01 SP - 1542 EP - 1546 PB - American Association for the Advancement of Science VL - 289 IS - 5484 SN - 0036-8075, 0036-8075 KW - Chile, Atacama Desert KW - Water Resources Abstracts KW - Grasses KW - Deserts KW - Rainfall KW - Vegetation KW - Climatic Changes KW - Wetlands KW - Groundwater KW - Temperature Gradient KW - SW 0815:Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17568510?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+%28Washington%29&rft.atitle=A+22%2C000-year+record+of+monsoonal+precipitation+from+northern+Chile%27s+Atacama+desert&rft.au=Betancourt%2C+J+L%3BLatorre%2C+C%3BRech%2C+JA%3BQuade%2C+J%3BRylander%2C+KA&rft.aulast=Betancourt&rft.aufirst=J&rft.date=2000-09-01&rft.volume=289&rft.issue=5484&rft.spage=1542&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.289.5484.1542 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Climatic Changes; Wetlands; Deserts; Rainfall; Vegetation; Grasses; Groundwater; Temperature Gradient DO - http://dx.doi.org/10.1126/science.289.5484.1542 ER - TY - JOUR T1 - Development of a grid-cell topographic surface for Okefenokee Swamp, Georgia AN - 17040200; 4786736 AB - The Okefenokee Swamp is a 160,000 ha freshwater wetland in Southeast Georgia, USA that developed in a landscape basin. Hydrologic variability across the swamp suggests that water-surface elevations are not uniform across the swamp. The topographic surface map discussed herein was developed to describe the swamp topography at local to landscape scales and relate the swamp peat- and sand-surface elevations to elevation above mean sea level. These data were then used to relate water-surface elevations across the swamp so that the swamp hydrologic environment could be described spatially and temporally with a spatial hydrology model. The swamp was divided into 5 sub-basins that reflect similar seasonal hydrodynamics but also indicate local conditions unique to the basins. Topographic gradient influences water-level dynamics in the western swamp (2 sub-basins), which is dominated by the Suwannee River floodplain. The eastern swamp (3 sub-basins) is terraced, and the regional hydrology is driven less by topographic gradient and more by precipitation and evapotranspiration volumes. The relatively steep gradient and berm and lake features in the western swamp's Suwannee River floodplain limit the spatial extent of the Suwannee River sill's effects, whereas system sensitivities to evapotranspiration rates are more important drivers of hydrology in the eastern swamp. JF - Wetlands AU - Loftin, C S AU - Rasberry, W AU - Kitchens, WM AD - USGS-BRD Maine Cooperative Fish and Wildlife Research Unit, 5755 Nutting Hall University of Maine, Orono, ME 04469-5755, USA, Cyndy_Loftin@umenfa.maine.edu Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 487 EP - 499 VL - 20 IS - 3 SN - 0277-5212, 0277-5212 KW - USA, Georgia, Okefenokee Swamp KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 1: Biological Sciences & Living Resources; Water Resources Abstracts KW - Evapotranspiration KW - Freshwater KW - Peat KW - Flood Plains KW - Topographic surveying KW - Hydrology KW - Wetlands KW - Swamps KW - Topography KW - Q1 08463:Habitat community studies KW - SW 0810:General KW - Q2 09171:Dynamics of lakes and rivers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17040200?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wetlands&rft.atitle=Development+of+a+grid-cell+topographic+surface+for+Okefenokee+Swamp%2C+Georgia&rft.au=Loftin%2C+C+S%3BRasberry%2C+W%3BKitchens%2C+WM&rft.aulast=Loftin&rft.aufirst=C&rft.date=2000-09-01&rft.volume=20&rft.issue=3&rft.spage=487&rft.isbn=&rft.btitle=&rft.title=Wetlands&rft.issn=02775212&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Topographic surveying; Hydrology; Evapotranspiration; Wetlands; Swamps; Peat; Flood Plains; Topography; Freshwater ER - TY - JOUR T1 - Life history plasticity and population regulation in sea otters AN - 17038070; 4824976 AB - We contrasted body condition, and age-specific reproduction and mortality between a growing population of sea otters (Enhydra lutris) at Kodiak Island and a high-density near-equilibrium population at Amchitka Island, Alaska. We obtained data from marked individuals, population surveys, and collections of beach-cast carcasses. Mass:length ratios indicated that females (but not males) captured in 1992 at Amchitka were in poorer condition than those captured at Kodiak in 1986-1987. In 1993, the condition of females at Amchitka improved in apparent response to two factors: (1) an episodic influx of Pacific smooth lumpsuckers, Aptocyclus ventricocus, from the epi-pelagic zone, which otters consumed; and (2) an increase in the otters' benthic invertebrate prey resulting from declining otter numbers. Reproductive rates varied with age (0.37 [CI = 0.21 to 0.53] births female super(-1) yr super(-1) for 2-3-yr-olds, and 0.83 [CI = 0.69 to 0.90] for females greater than or equal to 4 yr old), and were similar at both areas. Weaning success (pups surviving to greater than or equal to 120 d), in contrast, was almost 50% lower at Amchitka than at Kodiak and for females greater than or equal to 4 yr of age was 0.52 (CI = 0.38 to 0.66) vs 0.94 (CI = 0.75 to 0.99), respectively. Sixty-two percent of the preweaning pup losses at Amchitka occurred within a month of parturition and 79% within two months. Postweaning survival was also low at Amchitka as only 18% of instrumented pups were known to be alive one year after mother-pup separation. Adult survival rates appeared similar at Amchitka and Kodiak. Factors affecting survival early in life thus are a primary demographic mechanism of population regulation in sea otters. By maintaining uniformly high reproductive rates over time and limiting investment in any particular reproductive event, sea otters can take advantage of unpredictable environmental changes favorable to pup survival. This strategy is consistent with predictions of "bet-hedging" life history models. JF - Oikos AU - Monson, D H AU - Estes, JA AU - Bodkin, J L AU - Siniff, D B AD - U.S.G.S., Biological Resources Div., Alaska Biological Science Center, 1011 East Tudor Road, Anchorage, AK 99503, USA, daniel_monson@usgs.gov Y1 - 2000/09// PY - 2000 DA - Sep 2000 SP - 457 EP - 468 VL - 90 IS - 3 SN - 0030-1299, 0030-1299 KW - Sea otter KW - USA, Alaska KW - ASFA 1: Biological Sciences & Living Resources; Oceanic Abstracts; Ecology Abstracts KW - Mortality KW - Plasticity (developmental) KW - Age KW - Body conditions KW - Survival KW - INE, USA, Alaska KW - Food availability KW - Population dynamics KW - Enhydra lutris KW - Fecundity KW - Life history KW - Reproduction KW - O 1070:Ecology/Community Studies KW - D 04672:Mammals KW - Q1 08442:Population dynamics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17038070?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Oikos&rft.atitle=Life+history+plasticity+and+population+regulation+in+sea+otters&rft.au=Monson%2C+D+H%3BEstes%2C+JA%3BBodkin%2C+J+L%3BSiniff%2C+D+B&rft.aulast=Monson&rft.aufirst=D&rft.date=2000-09-01&rft.volume=90&rft.issue=3&rft.spage=457&rft.isbn=&rft.btitle=&rft.title=Oikos&rft.issn=00301299&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Life history; Fecundity; Body conditions; Survival; Food availability; Population dynamics; Mortality; Age; Plasticity (developmental); Reproduction; Enhydra lutris; INE, USA, Alaska ER - TY - JOUR T1 - Watching the Hayward fault AN - 17612783; 4749263 AB - The Hayward fault on the east side of San Francisco Bay creeps continuously at the surface at an average rate of about 5 millimetres per year, deforming buildings and cracking pavement, aqueducts, the University of California at Berkeley football stadium, and anything else unlucky enough to lie across its active trace. It also produce major earquakes, the last being a magnitude (M) similar to 6.8 event in 1868 on the southern part of the fault. It may seem paradoxically that a fault creeping at the surface produces large earquakes. How can it simultaneously store and release strain energy? Such a situation could hold if the earthquakes actually occur on locked brittle regions (called asperities) at midcrustal depths below the creeping zone. Most seismicity along the Hayward fault occurs above 12-km depth, probably because the deeper reaches of the fault are warm and slip in ductile fashion, at long-term rates estimated from offset features at the surface to be about 9 to 10 mm/year. This deep slip causes stress on asperities in the brittle region and at the same time drives the creep at the surface by transferring stress elastically around the locked regions. Creep at the surface is slower than the long-term slip rate because of the retarding effect of the locked patches, so that when one or more locked patches fail in an earthquake, a deficit of surface slip needs to be made up, either in coseismic rupture or as postseismic afterslip. On page 1178 of this issue, Buergmann et al. propose that a 20-km stretch of the northern Hayward fault is creeping over the entire depth range in which earthquakes might nucleate and that major earthquakes can therefore not originate in this region. JF - Science (Washington) AU - Simpson, R W AD - US Geol. Survey, 345 Middlefield Rd., Menlo Park, CA 94025, USA, simpson@usgs.gov Y1 - 2000/08/18/ PY - 2000 DA - 2000 Aug 18 SP - 1147 EP - 1148 PB - American Association for the Advancement of Science VL - 289 IS - 5482 SN - 0036-8075, 0036-8075 KW - USA, California, Hayward Fault KW - natural disasters KW - Risk Abstracts; Health & Safety Science Abstracts KW - Earthquakes KW - Seismic activity KW - H 6000:Natural Disasters/Civil Defense/Emergency Management KW - R2 23030:Natural hazards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17612783?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+%28Washington%29&rft.atitle=Watching+the+Hayward+fault&rft.au=Simpson%2C+R+W&rft.aulast=Simpson&rft.aufirst=R&rft.date=2000-08-18&rft.volume=289&rft.issue=5482&rft.spage=1147&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.289.5482.1147 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Earthquakes; Seismic activity DO - http://dx.doi.org/10.1126/science.289.5482.1147 ER - TY - JOUR T1 - An approach for assessment of water quality using semipermeable membrane devices (SPMDs) and bioindicator tests. AN - 72365612; 11057592 AB - As an integral part of our continued development of water quality assessment approaches, we combined integrative sampling, instrumental analysis of widely occurring anthropogenic contaminants, and the application of a suite of bioindicator tests as a specific part of a broader survey of ecological conditions, species diversity, and habitat quality in the Santa Cruz River in Arizona, USA. Lipid-containing semipermeable membrane devices (SPMDs) were employed to sequester waterborne hydrophobic chemicals. Instrumental analysis and a suite of bioindicator tests were used to determine the presence and potential toxicological relevance of mixtures of bioavailable chemicals in two major water sources of the Santa Cruz River. The SPMDs were deployed at two sites; the effluent weir of the International Wastewater Treatment Plant (IWWTP) and the Nogales Wash. Both of these systems empty into the Santa Cruz River and the IWWTP effluent is a potential source of water for a constructed wetland complex. Analysis of the SPMD sample extracts revealed the presence of organochlorine pesticides (OCs), polychlorinated biphenyls (PCBs), and polycyclic aromatic hydrocarbons (PAHs). The bioindicator tests demonstrated increased liver enzyme activity, perturbation of neurotransmitter systems and potential endocrine disrupting effects (vitellogenin induction) in fish exposed to the extracts. With increasing global demands on limited water resources, the approach described herein provides an assessment paradigm applicable to determining the quality of water in a broad range of aquatic systems. JF - Chemosphere AU - Petty, J D AU - Jones, S B AU - Huckins, J N AU - Cranor, W L AU - Parris, J T AU - McTague, T B AU - Boyle, T P AD - USGS/Columbia Environmental Research Center, MO 65201, USA. jim_petty@usgs.gov Y1 - 2000/08// PY - 2000 DA - August 2000 SP - 311 EP - 321 VL - 41 IS - 3 SN - 0045-6535, 0045-6535 KW - Hazardous Substances KW - 0 KW - Insecticides KW - Polycyclic Aromatic Hydrocarbons KW - Water Pollutants KW - Polychlorinated Biphenyls KW - DFC2HB4I0K KW - Index Medicus KW - Polycyclic Aromatic Hydrocarbons -- toxicity KW - Insecticides -- toxicity KW - Animals KW - Humans KW - Polychlorinated Biphenyls -- toxicity KW - Biological Assay KW - Oncorhynchus mykiss KW - Polychlorinated Biphenyls -- analysis KW - Insecticides -- analysis KW - Chromatography, Gas -- methods KW - Fresh Water KW - Arizona KW - Polycyclic Aromatic Hydrocarbons -- analysis KW - Quality Control KW - Water Pollutants -- toxicity KW - Water Pollutants -- analysis KW - Water Supply -- standards KW - Water Purification -- methods KW - Hazardous Substances -- analysis KW - Hazardous Substances -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72365612?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere&rft.atitle=An+approach+for+assessment+of+water+quality+using+semipermeable+membrane+devices+%28SPMDs%29+and+bioindicator+tests.&rft.au=Petty%2C+J+D%3BJones%2C+S+B%3BHuckins%2C+J+N%3BCranor%2C+W+L%3BParris%2C+J+T%3BMcTague%2C+T+B%3BBoyle%2C+T+P&rft.aulast=Petty&rft.aufirst=J&rft.date=2000-08-01&rft.volume=41&rft.issue=3&rft.spage=311&rft.isbn=&rft.btitle=&rft.title=Chemosphere&rft.issn=00456535&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-12-07 N1 - Date created - 2000-11-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Environmental applications of a digital model of the Upper Carboniferous Pittsburgh coal bed, Monongahela Group, Appalachian Basin, USA AN - 51961126; 2003-053982 AB - The Upper Carboniferous Pittsburgh coal bed extends over 28500 km (super 2) in four states of the Appalachian basin, USA. It was the first Appalachian coal to be digitally assessed by the U. S. Geological Survey as part of the National Coal Resource Assessment, in partnership with state geological surveys in Pennsylvania, West Virginia, Maryland, and Ohio. Originally much larger than present-day extent, the Pittsburgh bed formed as a large peat mire in the northeast; other correlative mires formed in the south and southwest with a no- peat area in the center, making the Pittsburgh the most valuable coal resource of the basin. The coal was first mined in the 1760's from drift mines near Pittsburgh, Pennsylvania. Presently long-wall underground mines produce 71 million metric tons annually. A digital model of the Pittsburgh is composed of Geographic Information Systems files that include coal extent, mined areas, coal elevation, coal thickness, overburden thickness, and coal quality. In the vicinity of Fairmont, West Virginia, numerous inactive underground mines are interconnected to varying degrees and have filled with water, creating a 10900 hectare "mine pool" that requires pumping and water quality treatment prior to discharge into surface waters. In the 1990's, the underground mine pool water levels rose above the regional drainage elevation (Monongahela River), creating the potential for a "blow out" near the coal outcrop, a rapid discharge of acidic, metal-laden waters. The digital data for the Pittsburgh serve as a basis for three-dimensional modeling to help predict potential areas of other future catastrophic mine discharges. JF - International Geological Congress, Abstracts = Congres Geologique International, Resumes AU - Tewalt, S J AU - Ruppert, L F AU - Bragg, L J AU - Fedorko, Nick AU - Hawkins, J AU - Anonymous Y1 - 2000/08// PY - 2000 DA - August 2000 EP - unpaginated PB - [International Geological Congress], [location varies] VL - 31 KW - United States KW - resources KW - mining KW - Pittsburgh Coal KW - Pennsylvanian KW - Marion County West Virginia KW - data processing KW - Pittsburgh coal basin KW - Upper Carboniferous KW - sedimentary rocks KW - geographic information systems KW - Appalachian Basin KW - mining geology KW - coal KW - digital simulation KW - Fairmont West Virginia KW - Maryland KW - depositional environment KW - West Virginia KW - Ohio KW - North America KW - Paleozoic KW - drainage KW - Carboniferous KW - Monongahela Group KW - information systems KW - Pennsylvania KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51961126?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.atitle=Environmental+applications+of+a+digital+model+of+the+Upper+Carboniferous+Pittsburgh+coal+bed%2C+Monongahela+Group%2C+Appalachian+Basin%2C+USA&rft.au=Tewalt%2C+S+J%3BRuppert%2C+L+F%3BBragg%2C+L+J%3BFedorko%2C+Nick%3BHawkins%2C+J%3BAnonymous&rft.aulast=Tewalt&rft.aufirst=S&rft.date=2000-08-01&rft.volume=31&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Brazil 2000; 31st international geological congress N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Last updated - 2013-09-20 N1 - CODEN - IGABBY N1 - SubjectsTermNotLitGenreText - Appalachian Basin; Carboniferous; coal; data processing; depositional environment; digital simulation; drainage; Fairmont West Virginia; geographic information systems; information systems; Marion County West Virginia; Maryland; mining; mining geology; Monongahela Group; North America; Ohio; Paleozoic; Pennsylvania; Pennsylvanian; Pittsburgh Coal; Pittsburgh coal basin; resources; sedimentary rocks; United States; Upper Carboniferous; West Virginia ER - TY - JOUR T1 - The influence of training on neural networks versus weights of evidence AN - 51823894; 2004-059258 AB - Neural networks provide a nonlinear alternative to weights of evidence for spatial data modeling in a GIS. A neural network requires, however, an additional explicit training set than weights of evidence. For example in mineral exploration, a weights-of-evidence training set might consist of the point locations of known mineral deposits. The training set for a neural network needs additionally the point location of known "not deposits". Comparison of the results of these two methods seems to show that neural networks more accurately classify the training points. Investigation of the points "poorly" classified by weights of evidence often raises questions about "poorly" classified deposits as valid members of the training set. Similarly, questions of the neural-network result arise about the inclusion of individual "not-deposit" training points. The objectives of spatial data modeling include both data exploration and classification. For data exploration where understanding of the process modeled is the objective, a method that gives insights into the training set and the tested data is best. On the other hand, for data classification where accurate classification is the objective and it is assumed that the training points are uniform and correct, a method that accurately classifies the training set is best. JF - International Geological Congress, Abstracts = Congres Geologique International, Resumes AU - Raines, G L AU - Looney, C G AU - Anonymous Y1 - 2000/08// PY - 2000 DA - August 2000 PB - [International Geological Congress], [location varies] VL - 31 KW - mineral exploration KW - spatial distribution KW - geographic information systems KW - potential deposits KW - classification KW - statistical analysis KW - information systems KW - neural networks KW - corrections KW - accuracy KW - 26A:Economic geology, general, deposits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51823894?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.atitle=The+influence+of+training+on+neural+networks+versus+weights+of+evidence&rft.au=Raines%2C+G+L%3BLooney%2C+C+G%3BAnonymous&rft.aulast=Raines&rft.aufirst=G&rft.date=2000-08-01&rft.volume=31&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Brazil 2000; 31st international geological congress N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by International Geological Congress Organizational Committee N1 - Date revised - 2004-01-01 N1 - SuppNotes - File G2401017.PDF N1 - Last updated - 2013-07-18 N1 - CODEN - IGABBY N1 - SubjectsTermNotLitGenreText - accuracy; classification; corrections; geographic information systems; information systems; mineral exploration; neural networks; potential deposits; spatial distribution; statistical analysis ER - TY - JOUR T1 - A modern Earth Narrative: what will be the fate of the biosphere? AN - 19925816; 5879608 AB - The modern Earth Narrative is the scientific description of the natural and human history of the Earth, and it is based on two fundamental concepts: Deep (or Geologic) Time and Biological Evolution. Changes in the Earth's biosphere and geosphere are discussed from the perspective of natural variability and impacts of the rapid increase in the human population. The failure of humans to comprehend and understand the Earth Narrative, especially the place of humans in it, presages dire consequences for the Earth's biosphere. The actions humans take, individually and collectively, during the 21st century will likely determine the fate of many millions of species, including our own. It is argued that we must quickly establish an Earth System-based conservation ethic that has the objective of complete preservation of the Earth's biotic inheritance. JF - Technology in Society AU - Williams, R S AD - US Geological Survey, Woods Hole Field Center, Woods Hole, MA, USA, rswilliams@usgs.gov Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 303 EP - 339 PB - Elsevier Science Ltd., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:usinfo-f@elsevier.com], [URL:http://www.elsevier.nl] VL - 22 IS - 3 SN - 0160-791X, 0160-791X KW - Sustainability Science Abstracts KW - Earth System KW - Global environmental change KW - Human impact on the geosphere and biosphere KW - Natural and human history of the Earth KW - Conservation of the Earth's biota KW - 'Sixth Extinction' KW - Historical account KW - Ethics KW - Conservation KW - Geology KW - Biosphere KW - human populations KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19925816?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Technology+in+Society&rft.atitle=A+modern+Earth+Narrative%3A+what+will+be+the+fate+of+the+biosphere%3F&rft.au=Williams%2C+R+S&rft.aulast=Williams&rft.aufirst=R&rft.date=2000-08-01&rft.volume=22&rft.issue=3&rft.spage=303&rft.isbn=&rft.btitle=&rft.title=Technology+in+Society&rft.issn=0160791X&rft_id=info:doi/10.1016%2FS0160-791X%2800%2900012-9 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-06-01 N1 - Last updated - 2015-03-30 N1 - SubjectsTermNotLitGenreText - Historical account; Ethics; Conservation; Geology; human populations; Biosphere DO - http://dx.doi.org/10.1016/S0160-791X(00)00012-9 ER - TY - JOUR T1 - The Role of Hybridization in the Distribution, Conservation and Management of Aquatic Species. Symposium Review AN - 18178913; 5199006 AB - This issue of Reviews in Fish Biology and Fisheries contains six papers addressing several critical aspects of hybridization in fishes and aquatic organisms. JF - Reviews in Fish Biology and Fisheries AU - Epifanio, J AU - Nielsen, J AD - Genetics Section of the American Fisheries Society, USGS-BRD, Alaska Science Center, Anchorage, AK 99503, USA, jennifer_nielsen@usgs.gov Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 245 EP - 251 PB - Kluwer Academic Publishers, Spuiboulevard 50 P.O. Box 989 Dordrecht 3300 AZ Netherlands VL - 10 IS - 3 SN - 0960-3166, 0960-3166 KW - Ecology Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Aquatic organisms KW - Geographical distribution KW - Conferences KW - Fishery management KW - Literature reviews KW - Fisheries KW - Nature conservation KW - Fishery biology KW - Hybridization KW - O 5020:Fisheries and Fishery Biology KW - Q1 08604:Stock assessment and management KW - D 04909:Books UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18178913?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Reviews+in+Fish+Biology+and+Fisheries&rft.atitle=The+Role+of+Hybridization+in+the+Distribution%2C+Conservation+and+Management+of+Aquatic+Species.+Symposium+Review&rft.au=Epifanio%2C+J%3BNielsen%2C+J&rft.aulast=Epifanio&rft.aufirst=J&rft.date=2000-08-01&rft.volume=10&rft.issue=3&rft.spage=245&rft.isbn=&rft.btitle=&rft.title=Reviews+in+Fish+Biology+and+Fisheries&rft.issn=09603166&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special Issue: The Role of Hybridization in the Distribution, Conservation and Management of Aquatic Species. N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Geographical distribution; Literature reviews; Fishery management; Nature conservation; Fishery biology; Hybridization; Aquatic organisms; Conferences; Fisheries ER - TY - JOUR T1 - Optimum Temperature for Growth and Preferred Temperatures of Age-0 Lake Trout AN - 17816476; 4858846 AB - This study was performed to determine the thermal preferences and optimum temperature for growth of age-0 lake trout Salvelinus namaycush to help predict the thermal habitat they select when they leave the spawning grounds and to assess the risk posed to them in the Great Lakes by piscivorus, nonnative fishes whose thermal habitat preferences are known. The test fish were hatched in the laboratory from eggs taken from wild fish, acclimated to 5, 10, 15, and 18 degree C, and fed to excess with commercial trout food for 47 d. The test fish grew at all of the temperatures, and the specific growth rate was highest at about 12.5 degree C (3.8% wet body weight/d). Fish used in the growth study were also tested in a vertical thermal gradient tank and had a final thermal preferendum between 10.1 degree C and 10.2 degree C. These results, which generally agreed with those of an earlier laboratory study of the temperature preference of age-1 lake trout and the limited information on thermal habitat use by age-0 lake trout in the Great Lakes, indicated age-0 lake trout would tend to seek temperatures near 10 degree C, or as high as 12.5 degree C, during summer if food was abundant. Published information on thermal habitat use of age-1 and adult alewives Alosa pseudoharengus and rainbow smelt Osmerus mordax indicated they would be expected to co-occur with age-0 lake trout during much of the time when the lake trout were small enough to be eaten by these two introduced piscivores. JF - North American Journal of Fisheries Management AU - Edsall, T A AU - Cleland, J AD - U.S. Geological Survey, Great Lakes Science Center, 1451 Green Road, Ann Arbor, MI 48105, USA, thomas_edsall@usgs.gov Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 804 EP - 809 VL - 20 IS - 3 SN - 0275-5947, 0275-5947 KW - Juveniles KW - Lake trout KW - North America, Great Lakes KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Temperature effects KW - Growth KW - Temperature preferences KW - Nursery grounds KW - Habitat preferences KW - Predators KW - Salvelinus namaycush KW - Introduced species KW - Q1 08422:Environmental effects KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17816476?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=North+American+Journal+of+Fisheries+Management&rft.atitle=Optimum+Temperature+for+Growth+and+Preferred+Temperatures+of+Age-0+Lake+Trout&rft.au=Edsall%2C+T+A%3BCleland%2C+J&rft.aulast=Edsall&rft.aufirst=T&rft.date=2000-08-01&rft.volume=20&rft.issue=3&rft.spage=804&rft.isbn=&rft.btitle=&rft.title=North+American+Journal+of+Fisheries+Management&rft.issn=02755947&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Juveniles; Growth; Temperature preferences; Nursery grounds; Predators; Temperature effects; Habitat preferences; Introduced species; Salvelinus namaycush ER - TY - JOUR T1 - Anadromous Salmonid Passage and Video Image Quality under Infrared and Visible Light at Prosser Dam, Yakima River, Washington AN - 17815002; 4858851 AB - The effect of infrared (>880 nm) and visible (400-700nm) illumination was compared to determine delay rates (percent of population) and delay times (min) of migratory chinook salmon Onchorhynchus tshawytscha, coho salmon O. kisutch, and steelhead (anadromous rainbow trout O. mykiss) in the fish ladder viewing chamber at Prosser Dam during the fall 1996 spawning season. Overall, a significantly (P < 0.05) greater proportion of migratory fish were delayed under visible (41%) than infrared illumination (28%). Species-specific comparisons indicated that significantly (P < 0.05) greater numbers of chinook and coho salmon were delayed under visible (57% and 33%, respectively) than infrared (25% and 12%, respectively) lighting. No significant difference was detected in the proportion of steelhead delayed under visible (35%) and infrared (25%). Passage rates for chinook salmon under infrared light were significantly (P < 0.001, chi square = 10.12) greater at night (70%) than day (30%), whereas under visible light nearly equal numbers of fish moved upstream during day and night (51% and 49%, respectively). Migrating chinook salmon readily passed through nonintrusive infrared but not visible light at night. Diel passage rates for coho salmon and steelhead were similar under infrared and visible light. Mean delay times for anadromous salmonids were short (<9 min) and similar in infrared and visible light. Infrared light facilitated anadromous fish passage at night but compromised video image quality and the ability to identify fish species and detect fin clips. JF - North American Journal of Fisheries Management AU - Hiebert, S AU - Helfrich, LA AU - Weigmann, D L AU - Liston, C AD - U.S. Bureau of Reclamation, Fisheries Applications Research Group (D-8290), Denver Technical Services Center, Denver, CO 80225, USA, shiebert@do.usbr.gov Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 827 EP - 832 VL - 20 IS - 3 SN - 0275-5947, 0275-5947 KW - Chinook salmon KW - Coho salmon KW - Rainbow trout KW - Salmonids KW - USA, Washington KW - Ecology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Fishways KW - Underwater cameras KW - Oncorhynchus mykiss KW - Freshwater KW - Oncorhynchus tshawytscha KW - Migration KW - USA, Washington, Yakima R., Prosser Dam KW - Light effects KW - Salmon fisheries KW - Migratory species KW - Fishery management KW - Videotape recordings KW - Dams KW - Underwater inspection KW - Lighting systems KW - Migrations KW - Anadromous migrations KW - Salmonidae KW - Oncorhynchus kisutch KW - D 04700:Management KW - O 5080:Legal/Governmental KW - Q5 08523:Conservation, wildlife management and recreation KW - D 04668:Fish KW - Q1 08604:Stock assessment and management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17815002?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=North+American+Journal+of+Fisheries+Management&rft.atitle=Anadromous+Salmonid+Passage+and+Video+Image+Quality+under+Infrared+and+Visible+Light+at+Prosser+Dam%2C+Yakima+River%2C+Washington&rft.au=Hiebert%2C+S%3BHelfrich%2C+LA%3BWeigmann%2C+D+L%3BListon%2C+C&rft.aulast=Hiebert&rft.aufirst=S&rft.date=2000-08-01&rft.volume=20&rft.issue=3&rft.spage=827&rft.isbn=&rft.btitle=&rft.title=North+American+Journal+of+Fisheries+Management&rft.issn=02755947&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Salmon fisheries; Fishways; Fishery management; Migratory species; Dams; Underwater inspection; Lighting systems; Migrations; Underwater cameras; Anadromous migrations; Light effects; Videotape recordings; Migration; Oncorhynchus mykiss; Salmonidae; Oncorhynchus tshawytscha; Oncorhynchus kisutch; USA, Washington, Yakima R., Prosser Dam; Freshwater ER - TY - JOUR T1 - Selective Trace Enrichment of Chlorotriazine Pesticides from Natural Waters and Sediment Samples Using Terbuthylazine Molecularly Imprinted Polymers AN - 17775917; 4819822 AB - Two molecularly imprinted polymers were synthesized using either dichloromethane or toluene as the porogen and terbuthylazine as the template and were used as solid-phase extraction cartridges for the enrichment of six chlorotriazines (deisopropylatrazine, deethylatrazine, simazine, atrazine, propazine, and terbuthylazine) in natural water and sediment samples. The extracted samples were analyzed by liquid chromatography/diode array detection (LC/DAD). Several washing solvents, as well as different volumes, were tested for their ability to remove the matrix components nonspecifically adsorbed on the sorbents. This cleanup step was shown to be of prime importance to the successful extraction of the pesticides from the aqueous samples. The optimal analytical conditions were obtained when the MIP imprinted using dichloromethane was the sorbent, 2 mL of dichloromethane was used in the washing step, and the preconcentrated analytes were eluted with 8 mL of methanol. The recoveries were higher than 80% for all the chlorotriazines except for propazine (53%) when 50- or 100-mL groundwater samples, spiked at 1 mu g/L level, were analyzed. The limits of detection varied from 0.05 to 0.2 mu g/L when preconcentrating a 100-mL groundwater sample. Natural sediment samples from the Ebre Delta area (Tarragona, Spain) containing atrazine and deethylatrazine were Soxhlet extracted and analyzed by the methodology developed in this work. No significant interferences from the sample matrix were noticed, thus indicating good selectivity of the MIP sorbents used. JF - Analytical Chemistry (Washington) AU - Ferrer, I AU - Lanza, F AU - Tolokan, A AU - Horvath, V AU - Sellergren, B AU - Horvai, G AU - Barcelo, D AD - Department of Environmental Chemistry, IIQAB-CSIC c/Jordi Girona, 18-26, 08034 Barcelona, Spain, USGS, P.O. Box 25046 Federal Center, MS 407, Building 95, Denver, CO 80225, USA, dbcqam@cid.csic.es Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 3934 EP - 3941 VL - 72 IS - 16 SN - 0003-2700, 0003-2700 KW - Spain, Tarragona KW - Aqualine Abstracts; Water Resources Abstracts KW - Trace-metal KW - Pesticides (see also Bactericides, Weedkillers) KW - Sediment KW - Sediments KW - Polymers (see also Polyelectrolytes) KW - Natural Waters KW - Trace Metals KW - Pollutants KW - Pesticides KW - Groundwater (see also Aquifers) KW - Polymers KW - Groundwater KW - SW 3010:Identification of pollutants KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17775917?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+Chemistry+%28Washington%29&rft.atitle=Selective+Trace+Enrichment+of+Chlorotriazine+Pesticides+from+Natural+Waters+and+Sediment+Samples+Using+Terbuthylazine+Molecularly+Imprinted+Polymers&rft.au=Ferrer%2C+I%3BLanza%2C+F%3BTolokan%2C+A%3BHorvath%2C+V%3BSellergren%2C+B%3BHorvai%2C+G%3BBarcelo%2C+D&rft.aulast=Ferrer&rft.aufirst=I&rft.date=2000-08-01&rft.volume=72&rft.issue=16&rft.spage=3934&rft.isbn=&rft.btitle=&rft.title=Analytical+Chemistry+%28Washington%29&rft.issn=00032700&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Trace-metal; Pollutants; Pesticides (see also Bactericides, Weedkillers); Groundwater (see also Aquifers); Sediment; Polymers (see also Polyelectrolytes); Natural Waters; Trace Metals; Pesticides; Groundwater; Polymers; Sediments ER - TY - JOUR T1 - Compositing water samples for analysis of volatile organic compounds AN - 17735877; 4798564 AB - Accurate mean concentrations of volatile organic compounds (VOCs) can easily and economically be obtained from a single VOC analysis by using proven methods of collecting representative, discrete water samples and compositing them with a gas-tight syringe. The technique can be used in conjunction with chemical analysis by a conventional laboratory, field-portable equipment, or a mobile laboratory. The type of mean concentration desired depends on the objectives of monitoring. For example, flow-weighted mean VOC concentrations can be used to estimate mass loadings in wastewater and urban storm water, and spatially integrated mean VOC concentrations can be used to assess sources of drinking water (e.g., reservoirs and rivers). The mean error in a discrete sample due to compositing is about 2% for most VOC concentrations greater than 0.1 mu g/L. The total error depends on the number of discrete samples comprising the composite sample and precision of the chemical analysis. JF - Journal of Environmental Engineering AU - Lopes, T J AU - Fallon, J D AU - Maluk, T L AD - U.S. Geological Survey, 1608 Mountain View Rd., Rapid City, SD 57702, USA, tjlopes@usgs.gov Y1 - 2000/08// PY - 2000 DA - August 2000 SP - 769 EP - 774 VL - 126 IS - 8 SN - 0733-9372, 0733-9372 KW - VOCs KW - Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Chemical analysis (see also Individual techniques) KW - Water supplies (Potable) KW - Water sampling KW - Water Analysis KW - Water Sampling KW - Chemical Analysis KW - Water Supply KW - Field Tests KW - Water analysis KW - Water supplies KW - Drinking Water KW - Field studies KW - Organic Compounds KW - Sampling KW - Organic compounds KW - Monitoring KW - Drinking water KW - Chemical analysis KW - Volatile organic compounds KW - Sampling methods KW - Laboratory Equipment KW - P 2000:FRESHWATER POLLUTION KW - SW 3010:Identification of pollutants KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17735877?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Engineering&rft.atitle=Compositing+water+samples+for+analysis+of+volatile+organic+compounds&rft.au=Lopes%2C+T+J%3BFallon%2C+J+D%3BMaluk%2C+T+L&rft.aulast=Lopes&rft.aufirst=T&rft.date=2000-08-01&rft.volume=126&rft.issue=8&rft.spage=769&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Engineering&rft.issn=07339372&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Water sampling; Drinking water; Chemical analysis; Sampling methods; Volatile organic compounds; Water supplies (Potable); Chemical analysis (see also Individual techniques); Field studies; Organic compounds; Sampling; Monitoring; Water supplies; Water analysis; Drinking Water; Water Analysis; Water Sampling; Water Supply; Chemical Analysis; Organic Compounds; Field Tests; Laboratory Equipment ER - TY - JOUR T1 - Atmospheric transport, deposition, and fate of triazine herbicides and their metabolites in pristine areas at Isle Royale National Park AN - 17697463; 4783975 AB - Trace concentrations of triazine herbicides, used in the Midwestern United States, are being transported atmospherically hundreds of kilometers and deposited by precipitation onto pristine areas, such as Isle Royale National Park (Lake Superior). Atrazine, deethylatrazine, deisopropylatrazine, and cyanazine were detected in Isle Royale rainfall from mid-May to early July (1992-1994) at concentrations of less than 0.005 to 1.8 mu g/L. Analysis of predominant wind direction indicated that the herbicides originated from the upper Midwestern United States. The annual mass of herbicides deposited by rainfall varied between years, from 13.4 mu g/m super(2)/yr for 1992, 3.7 mu g/m super(2)/yr for 1993, and 54 mu g/m super(2)/yr for 1994. Atrazine and deethylatrazine were found also in concentrations of less than 5-22 ng/L in lakes across Isle Royale. Concentrations of atrazine in the surface layer of the lakes increased during deposition periods and decreased later in the year. The fate of triazines in shallow lakes suggests faster degradation and shorter half-lives, while deeper lakes have residence times for atrazine that may exceed 10 years. JF - Environmental Science & Technology AU - Thurman, E M AU - Cromwell, A E AD - U.S. Geological Survey, 4821 Quail Crest Place, Lawrence, Kansas 66049-3839, USA, ethurman@usgs.gov Y1 - 2000/08/01/ PY - 2000 DA - 2000 Aug 01 SP - 3079 EP - 3085 VL - 34 IS - 15 SN - 0013-936X, 0013-936X KW - Cyanazine KW - Deethylatrazine KW - Deisopropylatrazine KW - USA KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Freshwater lakes KW - Surface water KW - Rainfall KW - North America, Superior L. KW - Herbicides KW - Freshwater KW - Water pollution KW - Air pollution KW - Atrazine KW - Pollutant persistence KW - Transport processes KW - Q5 08503:Characteristics, behavior and fate KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17697463?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Atmospheric+transport%2C+deposition%2C+and+fate+of+triazine+herbicides+and+their+metabolites+in+pristine+areas+at+Isle+Royale+National+Park&rft.au=Thurman%2C+E+M%3BCromwell%2C+A+E&rft.aulast=Thurman&rft.aufirst=E&rft.date=2000-08-01&rft.volume=34&rft.issue=15&rft.spage=3079&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Air pollution; Freshwater lakes; Pollutant persistence; Herbicides; Transport processes; Water pollution; Surface water; Rainfall; Atrazine; North America, Superior L.; Freshwater ER - TY - JOUR T1 - Historical Trends in Chesapeake Bay Dissolved Oxygen Based on Benthic Foraminifera from Sediment Cores AN - 17625477; 4775191 AB - Environmentally sensitive benthic foraminifera (protists) from Chesapeake Bay were used as bioindicators to estimate the timing and degree of changes in dissolved oxygen (DO) over the past five centuries. Living foraminifers from 19 surface samples and fossil assemblages from 11 sediment cores dated by super(210)Pb, super(137)Cs, super(14)C, and pollen stratigraphy were analyzed from the tidal portions of the Patuxent, Potomac, and Choptank Rivers and the main channel of the Chesapeake Bay. Ammonia parkinsoniana, a facultative anaerobe tolerant of periodic anoxic conditions, comprises an average of 74% of modern Chesapeake foraminiferal assemblages (DO = 0.47 and 1.72 ml l super(-1)) compared to 0% to 15% of assemblages collected in the 1960s. Paleoecological analyses show that A. parkinsoniana was absent prior to the late 17th century, increased to 10-25% relative frequency between approximately 1670-1720 and 1810-1900, and became the dominant (60-90%) benthic foraminiferal species in channel environments beginning in the early 1970s. Since the 1970s, deformed tests of A. parkinsoniana occur in all cores (10-20% of Ammonia), suggesting unprecedented stressful benthic conditions. These cores indicate that prior to the late 17th century, there was limited oxygen depletion. During the past 200 years, decadal scale variability in oxygen depletion has occurred, as dysoxic (DO = 0.1-1.0 ml l super(-1)), perhaps short-term anoxic (DO < 0.1 ml l super(-1)) conditions developed. The most extensive (spatially and temporally) anoxic conditions were reached during the 1970s. Over decadal timescales, DO variability seems to be linked closely to climatological factors influencing river discharge; the unprecedented anoxia since the early 1970s is attributed mainly to high freshwater flow and to an increase in nutrient concentrations from the watershed. JF - Estuaries AU - Karlsen, A W AU - Cronin, T M AU - Ishman, SE AU - Willard, DA AU - Holmes, C W AU - Marot, M AU - Kerhin, R AD - MS 926A U.S. Geological Survey, Reston, VA 20192, USA, tcronin@usgs.gov Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 488 EP - 508 VL - 23 IS - 4 SN - 0160-8347, 0160-8347 KW - Historical account KW - USA, Chesapeake Bay KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Oceanic Abstracts KW - Biological stress KW - Oxygen deficiency KW - Estuarine Environment KW - Ammonia parkinsoniana KW - Oxygen Depletion KW - Sediment KW - Nutrients KW - Watersheds KW - Dissolved oxygen KW - Protists KW - Foraminifera KW - Cores KW - Catchment areas KW - Pollution indicators KW - Bays KW - Bioindicators KW - Marine KW - Palaeoecology KW - Fossil assemblages KW - Protozoa (Foraminifera) KW - Estuaries KW - Dissolved Oxygen KW - Brackish KW - ANW, USA, Chesapeake Bay KW - Sediments KW - Estuarine chemistry KW - Historical ecology KW - Oxygen depletion KW - Zoobenthos KW - Oxygen (Dissolved) KW - Indicator species KW - AQ 00001:Water Resources and Supplies KW - Q1 08382:Ecological techniques and apparatus KW - O 2090:Instruments/Methods KW - Q2 09182:Methods and instruments KW - SW 0890:Estuaries KW - Q5 08521:Mechanical and natural changes KW - D 04320:Brackishwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17625477?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Estuaries&rft.atitle=Historical+Trends+in+Chesapeake+Bay+Dissolved+Oxygen+Based+on+Benthic+Foraminifera+from+Sediment+Cores&rft.au=Karlsen%2C+A+W%3BCronin%2C+T+M%3BIshman%2C+SE%3BWillard%2C+DA%3BHolmes%2C+C+W%3BMarot%2C+M%3BKerhin%2C+R&rft.aulast=Karlsen&rft.aufirst=A&rft.date=2000-08-01&rft.volume=23&rft.issue=4&rft.spage=488&rft.isbn=&rft.btitle=&rft.title=Estuaries&rft.issn=01608347&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Biological stress; Palaeoecology; Fossil assemblages; Estuaries; Oxygen depletion; Dissolved oxygen; Estuarine chemistry; Protists; Indicator species; Bays; Cores; Historical ecology; Zoobenthos; Sediments; Oxygen deficiency; Catchment areas; Protozoa (Foraminifera); Sediment; Nutrients; Pollution indicators; Oxygen (Dissolved); Bioindicators; Foraminifera; Estuarine Environment; Oxygen Depletion; Dissolved Oxygen; Watersheds; Ammonia parkinsoniana; ANW, USA, Chesapeake Bay; Marine; Brackish ER - TY - JOUR T1 - Biodegradation of disinfection byproducts as a potential removal process during aquifer storage recovery AN - 17617845; 4756967 AB - The biodegradation potential of two drinking water disinfection byproducts was investigated using aquifer materials obtained from approximately 100 and 200 meters below land surface in an aerobic aquifer system undergoing aquifer storage recovery of treated surface water. No significant biodegradation of a model trihalomethane compound, chloroform, was observed in aquifer microcosms under aerobic or anaerobic conditions. In contrast, between 16 and 27 percent mineralization of a radiolabeled model haloacetic acid compound, chloroacetic acid, was observed. These results indicate that although the potential for biodegradation of chloroacetic acid exists in deep aquifer systems, chloroform entrained within these aquifers or formed in situ will tend to persist. These results have important implications for water managers planning to meet anticipated lowered permissible levels of trihalomethanes in drinking water. JF - Journal of the American Water Resources Association AU - Landmeyer, JE AU - Bradley, P M AU - Thomas, J M AD - U.S. Geological Survey, 720 Gracern Road, Suite 129, Columbia, SC 29210-7651, USA, jlandmey@usgs.gov Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 861 EP - 868 VL - 36 IS - 4 SN - 1093-474X, 1093-474X KW - Aqualine Abstracts; Water Resources Abstracts KW - Water supplies (Potable) KW - Disinfection KW - Biodegradation KW - Treated Water KW - Byproducts KW - Halomethanes KW - Water supplies KW - Water quality control KW - Storage KW - Biodegradation (see also Biological oxidation) KW - Drinking Water KW - Water treatment KW - Trihalomethanes KW - Water Quality Management KW - Groundwater (see also Aquifers) KW - Water Storage KW - Water Treatment KW - Groundwater KW - SW 3060:Water treatment and distribution KW - AQ 00004:Water Treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17617845?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Biodegradation+of+disinfection+byproducts+as+a+potential+removal+process+during+aquifer+storage+recovery&rft.au=Landmeyer%2C+JE%3BBradley%2C+P+M%3BThomas%2C+J+M&rft.aulast=Landmeyer&rft.aufirst=JE&rft.date=2000-08-01&rft.volume=36&rft.issue=4&rft.spage=861&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Disinfection; Water Treatment; Byproducts; Groundwater; Drinking Water; Treated Water; Biodegradation; Water Storage; Water Quality Management; Trihalomethanes; Water treatment; Groundwater (see also Aquifers); Water supplies (Potable); Water supplies; Biodegradation (see also Biological oxidation); Storage; Water quality control; Halomethanes ER - TY - JOUR T1 - Nutrient concentrations and yields in undeveloped stream basins of the United States AN - 17615580; 4756966 AB - Data from 85 sites across the United States were used to estimate concentrations and yields of selected nutrients in streams draining relatively undeveloped basins. Flow-weighted concentrations during 1990-1995 were generally low with median basin concentrations of 0.020, 0.087, 0.26, 0.010, and 0.022 milligrams per liter (mg/L) for ammonia as N, nitrate as N, total nitrogen, orthophosphate as P, and total phosphorus, respectively. The flow-weighted concentration of nitrate exceeded 0.6 mg/L in only three basins. Total nitrogen exceeded 1 mg/L in only four basins, and total phosphorus exceeded 0.1 mg/L in only four basins. The median annual basin yield of ammonia as N, nitrate as N, total nitrogen, orthophosphate as P, and total phosphorus was 8.1, 26, 86, 2.8, and 8.5 kilograms per square kilometer, respectively. Concentrations and yields of nitrate tended to be highest in northeastern and mid-Atlantic coastal states and correlated well with areas of high atmospheric nitrogen deposition. Concentrations and yields of total nitrogen were highest in the southeastern part of the nation and in parts of the upper Midwest. In the northeast, nitrate was generally the predominant form of nitrogen, and in the southeast and parts of the upper Midwest, organic nitrogen was the dominant form. Concentrations of total phosphorus were generally highest in the Rocky Mountain and Central Plain states. JF - Journal of the American Water Resources Association AU - Clark, G M AU - Mueller, D K AU - Mast, MA AD - U.S. Geological Survey, 230 Collins Road, Boise, ID 83702, USA, gmclark@usgs.gov Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 849 EP - 860 VL - 36 IS - 4 SN - 1093-474X, 1093-474X KW - USA KW - Aqualine Abstracts; Water Resources Abstracts KW - Water Pollution Sources KW - Catchment Areas KW - Phosphorus KW - Nutrients KW - Streams (in natural channels) KW - Streams KW - Catchment areas KW - Pollution (Water) KW - Nitrogen KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17615580?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Nutrient+concentrations+and+yields+in+undeveloped+stream+basins+of+the+United+States&rft.au=Clark%2C+G+M%3BMueller%2C+D+K%3BMast%2C+MA&rft.aulast=Clark&rft.aufirst=G&rft.date=2000-08-01&rft.volume=36&rft.issue=4&rft.spage=849&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Nutrients; Streams; Catchment Areas; Nitrogen; Phosphorus; Water Pollution Sources; USA; Streams (in natural channels); Catchment areas; Pollution (Water) ER - TY - JOUR T1 - Colloid formation and metal transport through two mixing zones affected by acid mine drainage near Silverton, Colorado AN - 17038670; 4737658 AB - Stream discharges and concentrations of dissolved and colloidal metals (Al, Ca, Cu, Fe, Mg, Mn, Pb, and Zn), SO sub(4), and dissolved silica were measured to identify chemical transformations and determine mass transports through two mixing zones in the Animas River that receive the inflows from Cement and Mineral Creeks. The creeks were the dominant sources of Al, Cu, Fe, and Pb, whereas the upstream Animas River supplied about half of the Zn. With the exception of Fe, which was present in dissolved and colloidal forms, the metals were dissolved in the acidic, high-SO sub(4) waters of Cement Creek (pH 3.8). Mixing of Cement Creek with the Animas River increased pH to near-neutral values and transformed Al and some additional Fe into colloids which also contained Cu and Pb. Aluminium and Fe colloids had already formed in the mildly acidic conditions in Mineral Creek (pH 6.6) upstream of the confluence with the Animas River. Colloidal Fe continued to form downstream of both mixing zones. The Fe- and Al-rich colloids were important for transport of Cu, Pb, and Zn, which appeared to have sorbed to them. Partitioning of Zn between dissolved and colloidal phases was dependent on pH and colloid concentration. Mass balances showed conservative transports for Ca, Mg, Mn, SO sub(4), and dissolved silica through the two mixing zones and small losses (<10%) of colloidal Al, Fe and Zn from the water column. JF - Applied Geochemistry AU - Schemel, LE AU - Kimball, BA AU - Bencala, KE AD - US Geological Survey, Water Resources Division, 345 Middlefield Road, Menlo Park, CA 94025, USA, lschemel@usgs.gov Y1 - 2000/08// PY - 2000 DA - Aug 2000 SP - 1003 EP - 1018 VL - 15 IS - 7 SN - 0883-2927, 0883-2927 KW - Mixing zones KW - USA, Colorado KW - USA, Colorado, Animas R. KW - ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Pollution Abstracts; Water Resources Abstracts KW - Pollution monitoring KW - Chemistry KW - Acidic wastes KW - Colloids KW - Heavy metals KW - USA, Colorado, Silverton KW - Mine drainage KW - Pollution dispersion KW - Man-induced effects KW - Pollution effects KW - Dissolved chemicals KW - Freshwater KW - Streams KW - Mine tailings KW - Hydrogen ion concentrations KW - Catchment areas KW - Hydrology KW - Acidity KW - Freshwater pollution KW - Acid Mine Drainage KW - Geochemistry KW - Hydrogen Ion Concentration KW - Streams (in natural channels) KW - Heavy Metals KW - Mining waste waters KW - Fate KW - Silica KW - Surface water (see also Lakes, Ponds, Streams) KW - Mining KW - Stream Discharge KW - Pollution (Water) KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17038670?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Geochemistry&rft.atitle=Colloid+formation+and+metal+transport+through+two+mixing+zones+affected+by+acid+mine+drainage+near+Silverton%2C+Colorado&rft.au=Schemel%2C+LE%3BKimball%2C+BA%3BBencala%2C+KE&rft.aulast=Schemel&rft.aufirst=LE&rft.date=2000-08-01&rft.volume=15&rft.issue=7&rft.spage=1003&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Pollution monitoring; Colloids; Heavy metals; Pollution dispersion; Pollution effects; Man-induced effects; Dissolved chemicals; Mine tailings; Fate; Silica; Mining; Acidity; Freshwater pollution; Acidic wastes; Mine drainage; Hydrology; Streams; Chemistry; Catchment areas; Surface water (see also Lakes, Ponds, Streams); Pollution (Water); Streams (in natural channels); Hydrogen ion concentrations; Mining waste waters; Acid Mine Drainage; Geochemistry; Hydrogen Ion Concentration; Stream Discharge; Heavy Metals; USA, Colorado, Silverton; Freshwater ER - TY - JOUR T1 - Flowmetering of drainage wells in Kuwait City, Kuwait AN - 17562035; 4756887 AB - A heat-pulse flowmeter was used in six drainage wells in Kuwait City for flow profiling under both ambient and pumping conditions. The data collected were used in: (a) estimating the cross-flow among the screened intervals under ambient conditions; (b) estimating the relative transmissivity adjacent to the individual screen zones; and (c) determination of the hydraulic heads at the far boundaries of the large-scale aquifer zones. These inferences were cross-checked against known hydrogeology of the aquifer-aquitard system in the study area, and the calibration results of numerical flow modeling. The major conclusions derived from the flow measurements were: (a) the presence of natural downward cross-flow under ambient condition supported the hypothesis that the upper part of the Kuwait Group aquifer in the study area was divided into a series of permeable units (aquifers), separated by confining or semi-confining beds (aquitards); (b) the head differences between the different screened zones, derived through modeling of the flowmeter data of the wells, provided additional confirmation for the division of the upper part of the Kuwait Group aquifer into compartments in the study area; (c) flowmeter data indicated that the second and third aquifers were contributing most of the water to the well bores, compared with the uppermost (first) and the lowermost (fourth) aquifers; and (d) inflow to the wells during pumping was associated with discrete sub-intervals in the screened zones, controlled by local aquifer heterogeneity, and possibly clogging of screens and gravel pack. JF - Journal of Hydrology (Amsterdam) AU - Paillet, F L AU - Senay, Y AU - Mukhopadhyay, A AU - Szekely, F AD - Borehole Geophysics Research Project, United States Geological Survey, P.O. Box 25046, MS 403, Denver, CO 80225, USA, fpaillet@usgs.gov Y1 - 2000/07/31/ PY - 2000 DA - 2000 Jul 31 SP - 208 EP - 227 VL - 234 IS - 3-4 SN - 0022-1694, 0022-1694 KW - Kuwait, Kuwait City KW - Water Resources Abstracts KW - Aquifers KW - Flow KW - Permeability KW - Drainage Wells KW - Profiles KW - Geohydrology KW - Pumping KW - Groundwater KW - Data Collections KW - SW 5040:Data acquisition UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17562035?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology+%28Amsterdam%29&rft.atitle=Flowmetering+of+drainage+wells+in+Kuwait+City%2C+Kuwait&rft.au=Paillet%2C+F+L%3BSenay%2C+Y%3BMukhopadhyay%2C+A%3BSzekely%2C+F&rft.aulast=Paillet&rft.aufirst=F&rft.date=2000-07-31&rft.volume=234&rft.issue=3-4&rft.spage=208&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology+%28Amsterdam%29&rft.issn=00221694&rft_id=info:doi/10.1016%2FS0022-1694%2800%2900261-4 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Flow; Drainage Wells; Profiles; Pumping; Data Collections; Aquifers; Geohydrology; Groundwater; Permeability DO - http://dx.doi.org/10.1016/S0022-1694(00)00261-4 ER - TY - JOUR T1 - Method for flow cytometric monitoring of Renibacterium salmoninarum inactivation. AN - 71762777; 10950180 AB - The slow growth of Renibacterium salmoninarum limits the usefulness of culture as a research tool. Development of a 2-color flow cytometric assay to quantify the proportions of live and dead R. salmoninarum in a test population is described. Bacteria were simultaneously stained with fluorescein isothiocyanate-conjugated immunoglobulin and exposed to the exclusion dye propidium iodide. Propidium iodide red fluorescence profiles of control groups of untreated and killed R. salmoninarum were compared with those for bacteria exposed to chlorine. Bacterial inactivation was based on mean red fluorescence intensity, and analyzed by high-red fluorescence intensity (HRFI) and curve subtraction (CS) analyses. When the concentration of R. salmoninarum was 8.65 x 10(6) bacteria ml(-1) and the bacteria exposed to chlorine at 1 mg l(-1) for periods from 1 to 20 min (high-Rs assessment), the mean red fluorescence intensity of the profile for each chlorine-exposure group was higher than that for the untreated control (p or = 0.92). Because of the rapid loss of culturable R. salmoninarum in both assessments following chlorine exposure, neither the duration of exposure nor the inactivation estimates correlated with bacteriological culture (r2 0.99). These results suggest that flow cytometry can be used as a supplementary or alternative method to bacteriological culture for monitoring the inactivation of R. salmoninarum. JF - Diseases of aquatic organisms AU - Pascho, R J AU - Ongerth, J E AD - US Geological Survey, Biological Resources Division, Western Fisheries Research Center, Seattle, Washington 98115, USA. ron_pascho@usgs.gov Y1 - 2000/07/14/ PY - 2000 DA - 2000 Jul 14 SP - 181 EP - 193 VL - 41 IS - 3 SN - 0177-5103, 0177-5103 KW - Chlorine KW - 4R7X1O2820 KW - Index Medicus KW - Hot Temperature KW - Chlorine -- pharmacology KW - Bacteriological Techniques -- veterinary KW - Gram-Positive Asporogenous Rods, Regular -- isolation & purification KW - Flow Cytometry -- veterinary KW - Gram-Positive Asporogenous Rods, Regular -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71762777?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Diseases+of+aquatic+organisms&rft.atitle=Method+for+flow+cytometric+monitoring+of+Renibacterium+salmoninarum+inactivation.&rft.au=Pascho%2C+R+J%3BOngerth%2C+J+E&rft.aulast=Pascho&rft.aufirst=R&rft.date=2000-07-14&rft.volume=41&rft.issue=3&rft.spage=181&rft.isbn=&rft.btitle=&rft.title=Diseases+of+aquatic+organisms&rft.issn=01775103&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-09-26 N1 - Date created - 2000-09-26 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Ethoxyresorufin-O-deethylase (EROD) activity in fish as a biomarker of chemical exposure. AN - 72201382; 10955715 AB - This review compiles and evaluates existing scientific information on the use, limitations, and procedural considerations for EROD activity (a catalytic measurement of cytochrome P4501A induction) as a biomarker in fish. A multitude of chemicals induce EROD activity in a variety of fish species, the most potent inducers being structural analogs of 2,3,7,8-tetracholordibenzo-p-dioxin. Although certain chemicals may inhibit EROD induction/activity, this interference is generally not a drawback to the use of EROD induction as a biomarker. The various methods of EROD analysis currently in use yield comparable results, particularly when data are expressed as relative rates of EROD activity. EROD induction in fish is well characterized, the most important modifying factors being fish species, reproductive status and age, all of which can be controlled through proper study design. Good candidate species for biomonitoring should have a wide range between basal and induced EROD activity (e.g., common carp, channel catfish, and mummichog). EROD activity has proven value as a biomarker in a number of field investigations of bleached kraft mill and industrial effluents, contaminated sediments, and chemical spills. Research on mechanisms of CYP1A-induced toxicity suggests that EROD activity may not only indicate chemical exposure, but also may also precede effects at various levels of biological organization. A current research need is the development of chemical exposure-response relationships for EROD activity in fish. In addition, routine reporting in the literature of EROD activity in standard positive and negative control material will enhance confidence in comparing results from different studies using this biomarker. JF - Critical reviews in toxicology AU - Whyte, J J AU - Jung, R E AU - Schmitt, C J AU - Tillitt, D E AD - U.S. Geological Survey (USGS) Cooperative Fish and Wildlife Research Unit, University of Missouri-Columbia, Columbia Environmetal Research Center (CERC), 65201, USA. Y1 - 2000/07// PY - 2000 DA - July 2000 SP - 347 EP - 570 VL - 30 IS - 4 SN - 1040-8444, 1040-8444 KW - Biomarkers KW - 0 KW - Environmental Pollutants KW - Hazardous Substances KW - Polychlorinated Dibenzodioxins KW - Cytochrome P-450 CYP1A1 KW - EC 1.14.14.1 KW - Index Medicus KW - Polychlorinated Dibenzodioxins -- analogs & derivatives KW - Animals KW - Environmental Pollutants -- toxicity KW - Enzyme Induction -- drug effects KW - Polychlorinated Dibenzodioxins -- toxicity KW - Environmental Pollutants -- analysis KW - Hazardous Substances -- analysis KW - Hazardous Substances -- toxicity KW - Environmental Exposure KW - Cytochrome P-450 CYP1A1 -- metabolism KW - Fishes -- metabolism KW - Environmental Monitoring -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72201382?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Critical+reviews+in+toxicology&rft.atitle=Ethoxyresorufin-O-deethylase+%28EROD%29+activity+in+fish+as+a+biomarker+of+chemical+exposure.&rft.au=Whyte%2C+J+J%3BJung%2C+R+E%3BSchmitt%2C+C+J%3BTillitt%2C+D+E&rft.aulast=Whyte&rft.aufirst=J&rft.date=2000-07-01&rft.volume=30&rft.issue=4&rft.spage=347&rft.isbn=&rft.btitle=&rft.title=Critical+reviews+in+toxicology&rft.issn=10408444&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-12-14 N1 - Date created - 2000-11-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Efficacy of a type C botulism vaccine in green-winged teal. AN - 71763961; 10941734 AB - We tested the efficacy of a single dose of Botumink toxoid for protecting wild green-winged teal (Anas crecca) during botulism epizootics caused by Clostridium botulinum type C. We challenged control and immunized ducks with four different doses of type C botulinum toxin to determine the LD50 for this species and to evaluate vaccine protection. Fewer immunized ducks were affected with botulism than control ducks, indicating that a single dose of Botumink toxoid could increase the survival of ducks during epizootics. However, the frequency of immunized ducks with signs of botulism increased with the challenge dose of botulinum toxin. Even at doses of botulinum toxin approximately 2 to 4 green-winged teal LD50, about 50% of the immunized ducks were affected. We believe an improved vaccine or a better delivery system is required to justify immunization of wild birds for experimental survival studies. JF - Journal of wildlife diseases AU - Rocke, T E AU - Samuel, M D AU - Swift, P K AU - Yarris, G S AD - U.S. Geological Survey, National Wildlife Health Center, Madison, Wisconsin 53711, USA. tonie_rocke@usgs.gov Y1 - 2000/07// PY - 2000 DA - July 2000 SP - 489 EP - 493 VL - 36 IS - 3 SN - 0090-3558, 0090-3558 KW - Bacterial Vaccines KW - 0 KW - Botulinum Toxins KW - EC 3.4.24.69 KW - botulinum toxin type C KW - FPM7829VMX KW - Index Medicus KW - Animals KW - Random Allocation KW - Male KW - Female KW - Animals, Wild KW - Bacterial Vaccines -- standards KW - Ducks KW - Botulism -- prevention & control KW - Clostridium botulinum -- immunology KW - Botulism -- veterinary KW - Bird Diseases -- prevention & control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71763961?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+wildlife+diseases&rft.atitle=Efficacy+of+a+type+C+botulism+vaccine+in+green-winged+teal.&rft.au=Rocke%2C+T+E%3BSamuel%2C+M+D%3BSwift%2C+P+K%3BYarris%2C+G+S&rft.aulast=Rocke&rft.aufirst=T&rft.date=2000-07-01&rft.volume=36&rft.issue=3&rft.spage=489&rft.isbn=&rft.btitle=&rft.title=Journal+of+wildlife+diseases&rft.issn=00903558&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-04-05 N1 - Date created - 2000-08-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Water resources of the Northeast National Petroleum Reserve-Alaska AN - 52133320; 2002-022674 JF - BLM-Alaska Open File Report AU - Kostohrys, Jon AU - Barber, Valerie AU - Hammond, Tim Y1 - 2000/07// PY - 2000 DA - July 2000 SP - 27 PB - Bureau of Land Management, Alaska State Office, Anchorage, AK KW - United States KW - hydrology KW - water quality KW - meanders KW - North Slope KW - surface water KW - lakes KW - rivers KW - environmental analysis KW - National Petroleum Reserve Alaska KW - geographic information systems KW - Northern Alaska KW - fluvial features KW - drainage basins KW - streams KW - information systems KW - Alaska KW - braided streams KW - water resources KW - climate KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52133320?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Kostohrys%2C+Jon%3BBarber%2C+Valerie%3BHammond%2C+Tim&rft.aulast=Kostohrys&rft.aufirst=Jon&rft.date=2000-07-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Water+resources+of+the+Northeast+National+Petroleum+Reserve-Alaska&rft.title=Water+resources+of+the+Northeast+National+Petroleum+Reserve-Alaska&rft.issn=&rft_id=info:doi/ L2 - http://www.blm.gov/ak/st/en/info/gen_pubs/ofr.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 25 N1 - PubXState - AK N1 - Document feature - illus. incl. 6 tables, sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - #04510 N1 - SubjectsTermNotLitGenreText - Alaska; braided streams; climate; drainage basins; environmental analysis; fluvial features; geographic information systems; hydrology; information systems; lakes; meanders; National Petroleum Reserve Alaska; North Slope; Northern Alaska; rivers; streams; surface water; United States; water quality; water resources ER - TY - JOUR T1 - Migration from tabular to spatial data analysis techniques for water management in Idaho AN - 50891216; 2004-032182 AB - The State of Idaho has insufficient water supplies in many basins. Competition for water has spawned a complex system of administering water rights. Administration of water rights has historically been accomplished using paper records. During the 1970s a tabular, proprietary database was developed in conjunction with various mapping techniques. Emerging capabilities of Geographic information Systems (GIS) are now facilitating administrators in the use of spatial data throughout their decision-making processes. This paper portrays various arenas where GIS is being used to enhance spatial capabilities related to water resources in the state, leading to improved and conjunctive management of surface and ground water. JF - Journal of Hydroinformatics AU - Tuthill, David R, Jr AU - Petrich, Christian R AU - Ciscell, Michael H AU - Kissinger, Bruce A AU - Oakleaf, James R Y1 - 2000/07// PY - 2000 DA - July 2000 SP - 183 EP - 195 PB - IWA, London VL - 2 IS - 3 SN - 1464-7141, 1464-7141 KW - United States KW - Snake River Plain Aquifer KW - impact statements KW - data processing KW - water management KW - mapping KW - ecosystems KW - irrigation KW - ground water KW - data management KW - geographic information systems KW - conservation KW - movement KW - drainage basins KW - data bases KW - hydrology KW - Idaho KW - water supply KW - human activity KW - surface water KW - legislation KW - decision-making KW - information management KW - aquifers KW - information systems KW - geomorphology KW - data storage KW - water resources KW - Snake River plain KW - Snake River basin KW - land use KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50891216?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydroinformatics&rft.atitle=Migration+from+tabular+to+spatial+data+analysis+techniques+for+water+management+in+Idaho&rft.au=Tuthill%2C+David+R%2C+Jr%3BPetrich%2C+Christian+R%3BCiscell%2C+Michael+H%3BKissinger%2C+Bruce+A%3BOakleaf%2C+James+R&rft.aulast=Tuthill&rft.aufirst=David&rft.date=2000-07-01&rft.volume=2&rft.issue=3&rft.spage=183&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydroinformatics&rft.issn=14647141&rft_id=info:doi/ L2 - http://www.iwaponline.com/jh/toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 8 N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; conservation; data bases; data management; data processing; data storage; decision-making; drainage basins; ecosystems; geographic information systems; geomorphology; ground water; human activity; hydrology; Idaho; impact statements; information management; information systems; irrigation; land use; legislation; mapping; movement; Snake River basin; Snake River plain; Snake River Plain Aquifer; surface water; United States; water management; water resources; water supply ER - TY - JOUR T1 - The value of long-term streamflow records AN - 17894154; 5139851 AB - The U.S. Geological Survey (USGS) has been operating its streamgaging network since 1889. The first streamgaging station was installed on the Rio Grande River in New Mexico, to determine if enough water was available for irrigation purposes for additional agriculture in the region. Since then, the network has grown to include more than 7,200 streamgaging stations currently (2000). The data provided by the network are used for many purposes, including water management, engineering design, dam and lock operations, recreation, and research. JF - Water Resources Impact AU - Norris, J M AD - U.S. Geological Survey, National Center, Room 5A-106, 12201 Sunrise Valley Dr., MS 415, Reston, VA 20192, USA, mnorris@usgs.gov Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 11 EP - 14 VL - 2 IS - 4 SN - 1522-3175, 1522-3175 KW - Aqualine Abstracts KW - Discharge (of Natural waters) KW - Flow Measurement (see also Gauges, Gauging meters) KW - Irrigation water KW - Water use KW - USA KW - Locks KW - Recreation and amenity KW - Dams KW - Streams (in natural channels) KW - gauges KW - AQ 00001:Water Resources and Supplies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17894154?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Impact&rft.atitle=The+value+of+long-term+streamflow+records&rft.au=Norris%2C+J+M&rft.aulast=Norris&rft.aufirst=J&rft.date=2000-07-01&rft.volume=2&rft.issue=4&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Impact&rft.issn=15223175&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Irrigation water; Flow Measurement (see also Gauges, Gauging meters); Discharge (of Natural waters); Water use; Locks; Recreation and amenity; Dams; Streams (in natural channels); gauges; USA ER - TY - JOUR T1 - Temporal Variation in Phenotypic and Genotypic Traits in Two Sockeye Salmon Populations, Tustumena Lake, Alaska AN - 17819003; 4856766 AB - Sockeye salmon Oncorhynchus nerka in two tributary streams (about 20 km apart) of the same lake were compared for temporal variation in phenotypic (length, depth adjusted for length) and genotypic (six microsatellite loci) traits. Peak run time (July 16 versus 11 August) and run duration (43 versus 26 d) differed between streams. Populations were sampled twice, including an overlapping point in time. Divergence at microsatellite loci followed a temporal cline: population sample groups collected at the same time were not different (F sub(ST) = 0), whereas those most separated in time were different (F sub(ST) = 0.011, P = 0.001). Although contemporaneous sample groups did not differ significantly in microsatellite genotypes (F sub(ST) = 0), phenotypic traits did differ significantly (MANOVA, P < 0.001). Fish from the larger stream were larger; fish from the smaller stream were smaller, suggesting differential fitness related to size. Results indicate run time differences among and within sockeye salmon populations may strongly influence levels of gene flow. JF - Transactions of the American Fisheries Society AU - Woody, CA AU - Olsen, J AU - Reynolds, J AU - Bentzen, P AD - U.S. Geological Survey, Biological Resources Division, 1011 East Tudor Road, Anchorage, Alaska 99503, USA, carol_woody@usgs.gov Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 1031 EP - 1043 VL - 129 IS - 4 SN - 0002-8487, 0002-8487 KW - Blueback salmon KW - Kokanee KW - Red salmon KW - Sockeye salmon KW - USA KW - Ecology Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Spawning seasons KW - Marine KW - Temporal variations KW - Subpopulations KW - Brackish KW - Sexual isolation KW - Phenotypic variations KW - Spawning KW - Genotypes KW - Freshwater KW - Phenotypes KW - USA, Alaska, Tustumena L. KW - Population genetics KW - Oncorhynchus nerka KW - Gene flow KW - Body size KW - Isolating mechanisms KW - Q1 08443:Population genetics KW - D 04668:Fish KW - O 1050:Vertebrates, Urochordates and Cephalochordates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17819003?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Temporal+Variation+in+Phenotypic+and+Genotypic+Traits+in+Two+Sockeye+Salmon+Populations%2C+Tustumena+Lake%2C+Alaska&rft.au=Woody%2C+CA%3BOlsen%2C+J%3BReynolds%2C+J%3BBentzen%2C+P&rft.aulast=Woody&rft.aufirst=CA&rft.date=2000-07-01&rft.volume=129&rft.issue=4&rft.spage=1031&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Spawning seasons; Population genetics; Temporal variations; Subpopulations; Body size; Sexual isolation; Phenotypic variations; Isolating mechanisms; Genotypes; Gene flow; Spawning; Phenotypes; Oncorhynchus nerka; USA, Alaska, Tustumena L.; Freshwater; Brackish; Marine ER - TY - JOUR T1 - Relationships of habitat patch size to predator community and survival of duck nests AN - 17743876; 4805055 AB - We studied duck nest success and predator community composition in relation to size of discrete patches of nesting cover in the Prairie Pothole Region (PPR) of the United States in 1993-95. We focused on nests in uplands that were seeded to perennial grasses and forbs and enrolled in the Conservation Reserve Program (CRP) in Minnesota, North Dakota, and South Dakota. We estimated daily survival rates (DSRs) of upland duck nests and indices of activity for red foxes (Vulpes vulpes), coyotes (Canis latrans), American badgers (Taxidea taxus), striped skunks (Mephitis mephitis), and Franklin's ground squirrels (Spermophilus franklinii), and related these variables to habitat patch size. The effect of patch size (small vs. large) on estimated annual mean DSR was dependent on date of nest initiation (early vs. late) and year. Examination of within-year comparisons for early and late nests suggested that DSR was generally greater in larger habitat patches. Activity indices for the 5 mammalian nest predators were influenced differently by year, location, and patch size. Activity indices of the red fox were greatest in small patches. Coyote indices were the most inconsistent, demonstrating a year x location x patch size interaction. Activity indices of the striped skunk and American badger varied only among years. Franklin's ground squirrel indices were affected by study area location, with higher indices in the southeast than the northwest. Red fox activity was weakly correlated with that of the striped skunk and coyote. Although a positive relationship between habitat patch size and nest success probably exists, we believe the experiment to fully test this hypothesis will continue to be elusive. JF - Journal of Wildlife Management AU - Sovada, MA AU - Zicus, M C AU - Greenwood, R J AU - Rave, D P AU - Newton, W E AU - Woodward, RO AU - Beiser, JA AD - Northern Prairie Wildlife Research Center, U.S. Geological Survey, 8711 37th Street SE, Jamestown, ND 58401, USA, Marsha_Sovada@usgs.gov Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 820 EP - 831 VL - 64 IS - 3 SN - 0022-541X, 0022-541X KW - Ducks KW - Mammals KW - Prairie Pothole Region KW - USA, Minnesota KW - USA, North Dakota KW - USA, South Dakota KW - patch size KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Anatidae KW - Area KW - Mammalia KW - Survival KW - Predators KW - Freshwater KW - Habitat KW - Nests KW - Community composition KW - Patches KW - Aquatic birds KW - Breeding success KW - D 04672:Mammals KW - Q1 08422:Environmental effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17743876?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Wildlife+Management&rft.atitle=Relationships+of+habitat+patch+size+to+predator+community+and+survival+of+duck+nests&rft.au=Sovada%2C+MA%3BZicus%2C+M+C%3BGreenwood%2C+R+J%3BRave%2C+D+P%3BNewton%2C+W+E%3BWoodward%2C+RO%3BBeiser%2C+JA&rft.aulast=Sovada&rft.aufirst=MA&rft.date=2000-07-01&rft.volume=64&rft.issue=3&rft.spage=820&rft.isbn=&rft.btitle=&rft.title=Journal+of+Wildlife+Management&rft.issn=0022541X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Community composition; Area; Survival; Predators; Habitat; Nests; Aquatic birds; Breeding success; Patches; Anatidae; Mammalia; Freshwater ER - TY - JOUR T1 - Density and foraging habitat selection of waterbirds breeding in the San Luis Valley of Colorado AN - 17741628; 4805054 AB - We determined density and foraging habitat selection of American avocet (Recurvirostra americana), killdeer (Charadrius vociferus), Wilson's phalarope (Phalaropus tricolor), cinnamon teal (Anas cyanoptera), gadwall (A. strepera), mallard (A. platyrhynchos), redhead (Aythya americana), and white-faced ibis (Plegadis chihi) during prenesting and nesting on a wetland complex in the San Luis Valley, Colorado from 15 April to 4 July 1995 and 1996. Selection patterns differed among species and between the prenesting and nesting periods for cinnamon teal and redheads. Most species preferred seasonally flooded basins with no emergent vegetation and wetlands with short (<40 cm) emergent vegetation compared to other available habitats. The results suggest that, for each of these species, biologically meaningful differences occur among foraging habitats at the spatial resolution we measured. Because we used water depth to control for differences in habitat availability for individual species, we speculate that differences in food abundance, vegetation structure and composition, and behavioral strategies during the breeding season collectively influence selection of foraging habitats. JF - Journal of Wildlife Management AU - Laubhan, M K AU - Gammonley, J H AD - Midcontinent Ecological Science Center, U.S. Geological Survey, Fort Collins, CO 80525, USA, murray_laubhan@usgs.gov Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 808 EP - 819 VL - 64 IS - 3 SN - 0022-541X, 0022-541X KW - American avocet KW - Birds KW - Cinnamon teal KW - Dabbling ducks KW - Diving ducks KW - Gadwall KW - Killdeer KW - Mallard KW - Redhead KW - USA, Colorado KW - Wilson's phalarope KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Foraging behavior KW - Recurvirostra americana KW - Population density KW - Anas strepera KW - Freshwater KW - Habitat selection KW - Plegadis chihi KW - Anas platyrhynchos KW - Aves KW - Anas cyanoptera KW - Foraging behaviour KW - Aythya americana KW - Breeding KW - USA, Colorado, San Luis Valley KW - Wetlands KW - Phalaropus tricolor KW - Charadrius vociferus KW - Aquatic birds KW - D 04671:Birds KW - Q1 08361:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17741628?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Wildlife+Management&rft.atitle=Density+and+foraging+habitat+selection+of+waterbirds+breeding+in+the+San+Luis+Valley+of+Colorado&rft.au=Laubhan%2C+M+K%3BGammonley%2C+J+H&rft.aulast=Laubhan&rft.aufirst=M&rft.date=2000-07-01&rft.volume=64&rft.issue=3&rft.spage=808&rft.isbn=&rft.btitle=&rft.title=Journal+of+Wildlife+Management&rft.issn=0022541X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Foraging behaviour; Breeding; Population density; Wetlands; Habitat selection; Aquatic birds; Foraging behavior; Aves; Anas platyrhynchos; Anas cyanoptera; Recurvirostra americana; Aythya americana; Anas strepera; Phalaropus tricolor; Charadrius vociferus; Plegadis chihi; USA, Colorado, San Luis Valley; Freshwater ER - TY - JOUR T1 - Nest predation on black-tailed prairie dog colonies AN - 17741532; 4805030 AB - Nest predation is the principal cause of mortality for many grassland birds. Predation rates may be higher on prairie dog colonies because they may have less available nesting cover and may increase predator abundance. We compared 14-day nest predation rates for 1,764 artificial nests on 102 black-tailed prairie dog (Cynomys ludovicianus) colonies and their paired off-colony sites (similar habitat lacking prairie dogs) from 14 May to 26 June 1998 in South Dakota and Wyoming. Predation rates on colonies (66.2 plus or minus 2.2%; x plus or minus SE) were 29.5% higher than at off-colony sites (51.1 plus or minus 2.7%). Nesting cover on colonies was less dense and more uniform in structure and regression analysis showed differences in nest predation rates were correlated with estimates of mean nesting cover. Avian species associated with prairie dog colonies had smaller clutches and more broods/year than species associated with off-colony sites, suggesting a mechanism that may help compensate for increased risk of nest failure. Factors that influence predator-prey dynamics (e.g., habitat fragmentation) or foraging success (e.g., insect availability) also may help explain higher risk of nest predation on prairie dog colonies. Our conclusions support others in recommending protection of large, intact prairie dog ecosystems. JF - Journal of Wildlife Management AU - Baker, B W AU - Stanley, T R AU - Plumb, GE AD - U.S. Geological Survey, Midcontinent Ecological Science Center, 4512 McMurry Avenue, Fort Collins, CO 80525, USA, bruce_baker@usgs.gov Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 776 EP - 784 VL - 64 IS - 3 SN - 0022-541X, 0022-541X KW - Black-tailed prairie dog KW - USA, South Dakota KW - USA, Wyoming KW - Ecology Abstracts KW - Prairies KW - Colonies KW - Predation KW - Cynomys ludovicianus KW - D 04672:Mammals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17741532?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Wildlife+Management&rft.atitle=Nest+predation+on+black-tailed+prairie+dog+colonies&rft.au=Baker%2C+B+W%3BStanley%2C+T+R%3BPlumb%2C+GE&rft.aulast=Baker&rft.aufirst=B&rft.date=2000-07-01&rft.volume=64&rft.issue=3&rft.spage=776&rft.isbn=&rft.btitle=&rft.title=Journal+of+Wildlife+Management&rft.issn=0022541X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Cynomys ludovicianus; Predation; Colonies; Prairies ER - TY - JOUR T1 - Winter survival of adult female harlequin ducks in relation to history of contamination by the Exxon Valdez oil spill AN - 17737409; 4805057 AB - Harlequin duck (Histrionicus histrionicus) life-history characteristics make their populations particularly vulnerable to perturbations during nonbreeding periods. The 1989 Exxon Valdez oil spill was a major perturbation to nonbreeding habitats of harlequin ducks in Prince William Sound, Alaska, which resulted in population injury. To assess the status of population recovery from the oil spill and to evaluate factors potentially constraining full recovery, we used radiotelemetry to examine survival of adult female harlequin ducks during winters of 1995-96, 1996-97, and 1997-98. We implanted 294 harlequin ducks (154 and 140 in oiled and unoiled areas, respectively) with transmitters and tracked their signals from aircraft during October through March. We examined variation in survival rates relative to area and season (early, mid, and late winter) through comparisons of models using Akaike's information criterion (AIC sub(c)) values. The 3 models best supported by the data indicated that survival of birds in oiled areas was lower than in unoiled areas. Inclusion of standardized body mass during wing molt in the 3 best models did not improve their fit, indicating that body mass during wing molt did not affect subsequent winter survival. In the model that best fit our data, survival was high in early winter for both areas, lower during mid and late winter seasons, and lowest in oiled areas during mid winter. Cumulative winter survival estimated from this model was 78.0% (SE = 3.3%) in oiled areas and 83.7% (SE = 2.9%) in unoiled areas. We determined that area differences in survival were more likely related to oiling history than intrinsic geographic differences. Based on a demographic model, area differences in survival offer a likely mechanism for observed declines in populations on oiled areas. Concurrent studies indicated that harlequin ducks continued to be exposed to residual Exxon Valdez oil as much as 9 years after the spill. We suggest that oil exposure, mortality, and population dynamics were linked and conclude that continued effects of the oil spill likely restricted recovery of harlequin duck populations through at least 1998. JF - Journal of Wildlife Management AU - Esler, D AU - Schmutz, JA AU - Jarvis, R L AU - Mulcahy, D M AD - Alaska Biological Science Center, U.S. Geological Survey, 1011 E. Tudor Road, Anchorage, AK 99503, USA, daniel_esler@usgs.gov Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 839 EP - 847 VL - 64 IS - 3 SN - 0022-541X, 0022-541X KW - Females KW - Harlequin duck KW - Histrionicus histrionicus KW - USA, Alaska KW - USA, Alaska, Prince William Sound KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Ecology Abstracts KW - Marine KW - Mortality KW - Overwintering KW - Survival KW - Pollution effects KW - Population dynamics KW - Water pollution KW - Winter KW - Life history KW - Oil pollution KW - INE, USA, Alaska, Alaska Gulf, Prince William Sound KW - Oil spills KW - Mortality causes KW - D 04803:Pollution effects KW - P 1000:MARINE POLLUTION KW - Q5 08504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17737409?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Wildlife+Management&rft.atitle=Winter+survival+of+adult+female+harlequin+ducks+in+relation+to+history+of+contamination+by+the+Exxon+Valdez+oil+spill&rft.au=Esler%2C+D%3BSchmutz%2C+JA%3BJarvis%2C+R+L%3BMulcahy%2C+D+M&rft.aulast=Esler&rft.aufirst=D&rft.date=2000-07-01&rft.volume=64&rft.issue=3&rft.spage=839&rft.isbn=&rft.btitle=&rft.title=Journal+of+Wildlife+Management&rft.issn=0022541X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Life history; Overwintering; Pollution effects; Survival; Oil pollution; Population dynamics; Mortality causes; Oil spills; Water pollution; Winter; Mortality; INE, USA, Alaska, Alaska Gulf, Prince William Sound; Marine ER - TY - JOUR T1 - Field Evaluation of Lead Effects on Canada Geese and Mallards in the Coeur d'Alene River Basin, Idaho AN - 17733140; 4799747 AB - Hatch year (HY) mallards ( Anas platyrhynchos) in the Coeur d'Alene (CDA) River Basin had higher concentrations of lead in their blood than HY Western Canada geese ( Branta canadensis moffitti) (geometric means 0.98 versus 0.28 mu g/g, wet weight). The pattern for adults of both species was similar, although geometric means (1.77 versus 0.41 mu g/g) were higher than in HY birds. HY mallards captured in the CDA River Basin in 1987 contained significantly lower lead concentrations in their blood than in 1994-95 (0.36 versus 0.98 mu g/g); however, some very young mallards were sampled in 1987, and concentrations in adults were not significantly different in 1987, 1994, or 1995 (1.52, 2.07, 1.55 mu g/g, respectively). Both species in the CDA River Basin in 1994-95 showed significantly reduced red blood cell delta-aminolevulinic acid dehydratase (ALAD) activity compared to the reference areas: Canada geese (HY -65.4 to -86.0%, adults -82.3%), and mallards (HY -90.7 to -95.5%, adults -94.1%). Canada goose goslings were divided into size classes, and the two smaller classes from the CDA River Basin had significantly elevated free erythrocyte protoporphyrin (protoporphyrin) levels compared to the reference area (15.2 and 6.9). HY and adult mallards both had significantly elevated protoporphyrin (5.9 and 7.5). Recognizing that interspecific differences exist in response and sensitivity to lead, it appears (at least for hemoglobin and hematocrit) that Canada geese were more sensitive to lead than mallards, i.e., adverse hematologic effects occur at lower blood lead concentrations. JF - Archives of Environmental Contamination and Toxicology AU - Henny, C J AU - Blus, L J AU - Hoffman, D J AU - Sileo, L AU - Audet, D J AU - Snyder, M R AD - USGS Forest and Rangeland Ecosystem Science Center, 3200 SW Jefferson Way, Corvallis, Oregon 97331, USA Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 97 EP - 112 PB - Springer-Verlag VL - 39 IS - 1 SN - 0090-4341, 0090-4341 KW - Anas platyrhynchos KW - Branta canadensis KW - Canada goose KW - Mallard KW - USA, Idaho KW - USA, Idaho, Coeur d'Alene R. KW - delta -Aminolevulinic acid dehydratase KW - lead KW - Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts; Pollution Abstracts; Toxicology Abstracts KW - Heavy metals KW - Pollution effects KW - Freshwater KW - Lead KW - Ecotoxicology KW - Enzymatic activity KW - Pollution KW - Rivers KW - Mortality KW - Sediment pollution KW - Branta canadensis moffitti KW - Poisoning KW - River basins KW - Sediments KW - Blood levels KW - Bioaccumulation KW - Sublethal effects KW - Age groups KW - Mortality causes KW - Aquatic birds KW - D 04803:Pollution effects KW - P 2000:FRESHWATER POLLUTION KW - X 24166:Environmental impact KW - Q5 08504:Effects on organisms KW - Q1 08366:Physiology, biochemistry, biophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17733140?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+Environmental+Contamination+and+Toxicology&rft.atitle=Field+Evaluation+of+Lead+Effects+on+Canada+Geese+and+Mallards+in+the+Coeur+d%27Alene+River+Basin%2C+Idaho&rft.au=Henny%2C+C+J%3BBlus%2C+L+J%3BHoffman%2C+D+J%3BSileo%2C+L%3BAudet%2C+D+J%3BSnyder%2C+M+R&rft.aulast=Henny&rft.aufirst=C&rft.date=2000-07-01&rft.volume=39&rft.issue=1&rft.spage=97&rft.isbn=&rft.btitle=&rft.title=Archives+of+Environmental+Contamination+and+Toxicology&rft.issn=00904341&rft_id=info:doi/10.1007%2Fs002440010085 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Ecotoxicology; Sublethal effects; Pollution effects; Age groups; Enzymatic activity; Aquatic birds; Mortality causes; Lead; Rivers; Mortality; Bioaccumulation; Heavy metals; Poisoning; River basins; Pollution; Sediments; Blood levels; Branta canadensis moffitti; Freshwater DO - http://dx.doi.org/10.1007/s002440010085 ER - TY - JOUR T1 - Temporal flexibility of reproduction in temperate-breeding dabbling ducks AN - 17709509; 4785701 AB - I compared nesting intervals during three consecutive years in five species of temperate-nesting dabbling ducks (Mallard [Anas platyrhynchos], Northern Pintail [Anas acura], Northern Shoveler [Anas clypeata], Blue-winged Teal [Anas discors], Gadwall [Anas strepera]) and assessed whether differences existed in timing of refractoriness. Most nesting by females of all five species ended by the summer solstice. Nesting ended earliest for Northern Shovelers and Northern Pintails and latest for Gadwalls. Some Mallards, Blue-winged Teal, and Gadwalls continued to nest into mid- and late summer, whereas Northern Shovelers and Northern Pintails did not. Mallards, Blue-winged Teal, and Gadwalls accounted for 99% (81 of 82) of flightless broods resulting from nests initiated during mid- or late summer in North Dakota and 98% (58 of 59) of flightless juveniles shot on or after 1 October by a random sample of duck hunters from across the United States. Early cessation of breeding by Northern Shovelers may have evolved in response to the species' limited flexibility in diet. Photorefractory mechanisms that limit most breeding to spring presumably evolved in response to severe constraints on reproductive success when nesting continued through summer (e.g. mortality of late-hatched young and molting females due to low temperatures). Interspecific differences in photosensitivity may account for variation in timing of cessation of nesting in late spring, but controlled experiments are needed to assess the possible role of non-photic influences. My results suggest that the refractory mechanisms controlling length of the breeding season in temperate-nesting dabbling ducks are more varied and complex than previously thought, with non-photic influences (e.g. water conditions, food availability, food quality) having a larger role than indicated by earlier research. JF - Auk AU - Krapu, G L AD - United States Geological Survey, Northern Prairie Wildlife Research Center, Jamestown, ND 58401, USA, gary_krapu@usgs.gov Y1 - 2000/07// PY - 2000 DA - July 2000 SP - 640 EP - 650 VL - 117 IS - 3 SN - 0004-8038, 0004-8038 KW - Dabbling ducks KW - USA, North Dakota KW - ASFA 1: Biological Sciences & Living Resources; Animal Behavior Abstracts; Ecology Abstracts KW - Phenology KW - Photoperiods KW - Temporal variations KW - Nesting KW - Anas KW - Environmental quality KW - Reproductive behavior KW - Species composition KW - Reproductive behaviour KW - D 04671:Birds KW - Q1 08423:Behaviour KW - Y 25426:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17709509?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Auk&rft.atitle=Temporal+flexibility+of+reproduction+in+temperate-breeding+dabbling+ducks&rft.au=Krapu%2C+G+L&rft.aulast=Krapu&rft.aufirst=G&rft.date=2000-07-01&rft.volume=117&rft.issue=3&rft.spage=640&rft.isbn=&rft.btitle=&rft.title=Auk&rft.issn=00048038&rft_id=info:doi/10.1043%2F0004-8038%282000%29117%280640%3ATFORIT%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Photoperiods; Phenology; Temporal variations; Nesting; Reproductive behaviour; Environmental quality; Species composition; Reproductive behavior; Anas DO - http://dx.doi.org/10.1043/0004-8038(2000)117(0640:TFORIT)2.0.CO;2 ER - TY - JOUR T1 - Comparison of methods for determining Escherichia coli concentrations in recreational waters AN - 17681260; 4737253 AB - Seventy water samples were collected from three Lake Erie beaches to compare recoveries of Escherichia coli (E. coli) using the USEPA-recommended method for recreational waters (mTEC) to recoveries using three alternative methods (MI, modified mTEC, and Colilert). Statistical tests showed no differences in recoveries of E. coli between MI and mTEC; however, statistically-significant differences were found between modified mTEC or Colilert and mTEC. The MI agar method provided the most similar assessment of recreational water quality to mTEC among the three alternative methods tested. The range of differences between Colilert and mTEC was widest among the three alternative methods. In a sample group with a range of values near the single-sample bathing-water standard, recoveries of E. coli were statistically lower using modified mTEC than mTEC; however, MI and Colilert compared well to mTEC in this range. Because samples were collected in a small geographic area, more work is necessary to test within-method variability of the modified mTEC, MI, and Colilert methods and to evaluate these methods as substitutes for the mTEC method in a variety of recreational waters. JF - Water Research AU - Francy, D S AU - Darner, R A AD - US Geological Survey, Water Resources Division, 6480 Doubletree Avenue, Columbus, OH 43229, USA, dsfrancy@usgs.gov Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 2770 EP - 2778 VL - 34 IS - 10 SN - 0043-1354, 0043-1354 KW - Escherichia coli KW - North America, Erie L. KW - Aqualine Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts; Water Resources Abstracts KW - Analytical Methods KW - Comparative studies KW - Swimming KW - Water sampling KW - Comparison Studies KW - SW 5010:Network design KW - A 01105:Non-patents KW - P 2000:FRESHWATER POLLUTION KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17681260?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Research&rft.atitle=Comparison+of+methods+for+determining+Escherichia+coli+concentrations+in+recreational+waters&rft.au=Francy%2C+D+S%3BDarner%2C+R+A&rft.aulast=Francy&rft.aufirst=D&rft.date=2000-07-01&rft.volume=34&rft.issue=10&rft.spage=2770&rft.isbn=&rft.btitle=&rft.title=Water+Research&rft.issn=00431354&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-02-11 N1 - SubjectsTermNotLitGenreText - Swimming; Water sampling; Comparative studies; Comparison Studies; Escherichia coli ER - TY - JOUR T1 - Physiological measures of neurotoxicity of diazinon and malathion to larval rainbow trout (Oncorhynchus mykiss) and their correlation with behavioral measures AN - 17671944; 4758351 AB - Relations between neurotoxicants and changes in physiological parameters and behavior were investigated in larval rainbow trout (RBT; Oncorhynchus mykiss) exposed to sublethal concentrations of two organophosphate pesticides (OPs). Fish were exposed to diazinon and malathion in static-renewal experiments. After exposures for 24, 96, or 96 h, followed by 48 h of recovery, individual RBT were videotaped to assess locomotory behaviors. Brain tissue from the same fish was assayed for the physiological endpoints, cholinesterase (ChE) activity, muscarinic cholinergic receptor (MChR) number (B sub(max)), and MChR affinity (K sub(D)). Cholinesterase activity decreased significantly with increasing concentrations of both diazinon and malathion and differed significantly among exposure durations, with 24- and 96-h means less than 48-h recovery means. Decreases in B sub(max) with OP concentration were not significant for either chemical, and K sub(D) was unaffected. Changes in swimming speed and distance were significantly correlated with changes in ChE activity for both chemicals; rate of turning was significantly correlated with ChE activity in malathion exposures. These results suggest that correlations between physiological and behavioral changes previously seen in mammals also occur in fish. JF - Environmental Toxicology and Chemistry AU - Beauvais, S L AU - Jones, S B AU - Brewer, S K AU - Little, EE AD - USGS/BRD, Columbia Environmental Research Center, Columbia, Missouri 65201, USA, susan_b_jones@usgs.gov Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 1875 EP - 1880 VL - 19 IS - 7 SN - 0730-7268, 0730-7268 KW - Cholinesterase KW - Oncorhynchus mykiss KW - Rainbow trout KW - cholinesterase KW - CSA Neurosciences Abstracts; Toxicology Abstracts; Water Resources Abstracts; Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Aquatic organisms KW - Organophosphates KW - Physiology KW - Behaviour KW - Pollution effects KW - Freshwater KW - Fish larvae KW - Toxicity tests KW - Malathion KW - Pisces KW - Insecticides KW - Enzymatic activity KW - Marine KW - Pesticides (organophosphorus) KW - Swimming KW - Larvae KW - Brackish KW - Enzymes KW - Toxins KW - Local movements KW - Behavior KW - Trout KW - Water Pollution Effects KW - Locomotor activity KW - Neurotoxicity KW - Pesticides KW - Neurotoxins KW - Toxicity testing KW - Diazinon KW - Fish Behavior KW - X 24135:Biochemistry KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution KW - P 6000:TOXICOLOGY AND HEALTH KW - N3 11139:Toxicological and psychoactive drug correlates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17671944?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Physiological+measures+of+neurotoxicity+of+diazinon+and+malathion+to+larval+rainbow+trout+%28Oncorhynchus+mykiss%29+and+their+correlation+with+behavioral+measures&rft.au=Beauvais%2C+S+L%3BJones%2C+S+B%3BBrewer%2C+S+K%3BLittle%2C+EE&rft.aulast=Beauvais&rft.aufirst=S&rft.date=2000-07-01&rft.volume=19&rft.issue=7&rft.spage=1875&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Local movements; Swimming; Behaviour; Pesticides; Pollution effects; Enzymatic activity; Neurotoxins; Toxicity tests; Fish larvae; Pesticides (organophosphorus); Locomotor activity; Neurotoxicity; Larvae; Cholinesterase; Diazinon; Malathion; Pisces; Aquatic organisms; Insecticides; Behavior; Organophosphates; Physiology; Toxicity testing; Trout; Water Pollution Effects; Enzymes; Toxins; Fish Behavior; Freshwater; Brackish; Marine ER - TY - JOUR T1 - Effect of a Constructed Wetland on Disinfection Byproducts: Removal Processes and Production of Precursors AN - 17670288; 4750791 AB - The fate of halogenated disinfection byproducts (DBPs) in treatment wetlands and the changes in the DBP formation potential as wastewater treatment plant (WWTP)-derived water moves through the wetlands were investigated. Wetland inlet and outlet samples were analyzed for total organic halide (TOX), trihalomethanes (THM), haloacetic acids (HAA), dissolved organic carbon (DOC), and UV absorbance. Removal of DBPs by the wetland ranged from 13 to 55% for TOX, from 78 to 97% for THM, and from 67 to 96% for HAA. The 24-h and 7-day nonpurgeable total organic halide (NPTOX), THM, and HAA formation potential yields were determined at the inlet and outlet of these wetlands. The effect of wetlands on the production of DBP precursors and their DBP-formation potential yield from wastewater was dramatic. The wetlands increased DBP yield up to a factor of almost 30. Specific changes in the DOC precursors were identified using super(13)C NMR spectroscopy. JF - Environmental Science & Technology AU - Rostad, CE AU - Martin, B S AU - Barber, L B AU - Leenheer, JA AU - Daniel AD - U.S. Geological Survey, Building 95, Denver Federal Center, Denver, Colorado 80225, USA, cerostad@usgs.gov Y1 - 2000/07/01/ PY - 2000 DA - 2000 Jul 01 SP - 2703 EP - 2710 VL - 34 IS - 13 SN - 0013-936X, 0013-936X KW - fate KW - halogenated disinfection byproducts KW - trihalomethanes KW - ASFA 1: Biological Sciences & Living Resources; Water Resources Abstracts; Pollution Abstracts KW - Disinfection KW - Organic Carbon KW - Byproducts KW - Flow Discharge KW - Freshwater KW - Water quality KW - Water purification KW - Wastewater treatment KW - Disinfectants KW - Pollutant persistence KW - Water Treatment KW - Wetlands KW - Dissolved organic carbon KW - Wastewater Treatment KW - P 3000:SEWAGE & WASTEWATER TREATMENT KW - Q1 08463:Habitat community studies KW - SW 3040:Wastewater treatment processes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17670288?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Effect+of+a+Constructed+Wetland+on+Disinfection+Byproducts%3A+Removal+Processes+and+Production+of+Precursors&rft.au=Rostad%2C+CE%3BMartin%2C+B+S%3BBarber%2C+L+B%3BLeenheer%2C+JA%3BDaniel&rft.aulast=Rostad&rft.aufirst=CE&rft.date=2000-07-01&rft.volume=34&rft.issue=13&rft.spage=2703&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Disinfectants; Pollutant persistence; Wetlands; Dissolved organic carbon; Water quality; Wastewater treatment; Water purification; Disinfection; Byproducts; Organic Carbon; Water Treatment; Flow Discharge; Wastewater Treatment; Freshwater ER - TY - JOUR T1 - Acetogenic Microbial Degradation of Vinyl Chloride AN - 17665072; 4750800 AB - Under methanogenic conditions, microbial degradation of [1,2- super(14)C]vinyl chloride (VC) resulted in significant (14 plus or minus 3% maximum recovery) but transient recovery of radioactivity as super(14)C-acetate. Subsequently, super(14)C-acetate was degraded to super(14)CH sub(4) and super(14)CO sub(2) (18 plus or minus 2% and 54 plus or minus 3% final recoveries, respectively). In contrast, under 2-bromoethanesulfonic acid (BES) amended conditions, super(14)C-acetate recovery remained high (27 plus or minus 1% maximum recovery) throughout the study, no super(14)CH sub(4) was produced, and the final recovery of super(14)CO sub(2) was only 35 plus or minus 4%. These results demonstrate that oxidative acetogenesis may be an important mechanism for anaerobic VC biodegradation. Moreover, these results (1) demonstrate that microbial degradation of VC to CH sub(4) and CO sub(2) may involve oxidative acetogenesis followed by acetotrophic methanogenesis and (2) suggest that oxidative acetogenesis may be the initial step in the net oxidation of VC to CO sub(2) reported previously under Fe(III)-reducing, SO sub(4)-reducing, and humic acids-reducing conditions. JF - Environmental Science & Technology AU - Bradley, P M AU - Chapelle, F H AD - U.S. Geological Survey, Stephenson Center, Suite 129, Columbia, South Carolina 29210, USA, pbradley@usgs.gov Y1 - 2000/07/01/ PY - 2000 DA - 2000 Jul 01 SP - 2761 EP - 2763 VL - 34 IS - 13 SN - 0013-936X, 0013-936X KW - acetate KW - Pollution Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Methane KW - Biodegradation KW - Methanogenesis KW - Radioactivity KW - Carbon dioxide KW - Vinyl chloride KW - P 9000:ENVIRONMENTAL ACTION KW - A 01016:Microbial degradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17665072?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Acetogenic+Microbial+Degradation+of+Vinyl+Chloride&rft.au=Bradley%2C+P+M%3BChapelle%2C+F+H&rft.aulast=Bradley&rft.aufirst=P&rft.date=2000-07-01&rft.volume=34&rft.issue=13&rft.spage=2761&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Vinyl chloride; Biodegradation; Methanogenesis; Carbon dioxide; Radioactivity; Methane ER - TY - JOUR T1 - Contaminants in Eggs of Western Snowy Plovers and California Least Terns: Is There a Link to Population Decline? AN - 1765959025; PQ0002584612 JF - Bulletin of Environmental Contamination and Toxicology AU - Hothem, R L AU - Powell, AN AD - USGS, Western Ecological Research Center, Davis Field Station, R. 278 Kerr Hall, One Shields Avenue, University of California, Davis, CA 95616, USA, US Y1 - 2000/07// PY - 2000 DA - July 2000 SP - 42 EP - 50 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 65 IS - 1 SN - 0007-4861, 0007-4861 KW - Pollution Abstracts; Environment Abstracts KW - INE, USA, California KW - Contaminants KW - Population decline KW - Eggs KW - P 6000:TOXICOLOGY AND HEALTH KW - ENA 02:Toxicology & Environmental Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765959025?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.atitle=Contaminants+in+Eggs+of+Western+Snowy+Plovers+and+California+Least+Terns%3A+Is+There+a+Link+to+Population+Decline%3F&rft.au=Hothem%2C+R+L%3BPowell%2C+AN&rft.aulast=Hothem&rft.aufirst=R&rft.date=2000-07-01&rft.volume=65&rft.issue=1&rft.spage=42&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.issn=00074861&rft_id=info:doi/10.1007%2Fs0012800092 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-02-01 N1 - Last updated - 2016-08-03 N1 - SubjectsTermNotLitGenreText - Population decline; Contaminants; Eggs; INE, USA, California DO - http://dx.doi.org/10.1007/s0012800092 ER - TY - JOUR T1 - Effects of malaria on activity budgets of experimentally infected juvenile Apapane (Himatione sanguinea) AN - 17629590; 4785750 AB - We used behavioral, physiological, and parasitological measures to document effects of acute malarial infections on activity budgets of experimentally infected juvenile Apapane (Himatione sanguinea). Five of eight birds died within 20 to 32 days after exposure to a single infective mosquito bite. Infected Apapane devoted less time to locomotory activities involving flight, walking or hopping, and stationary activities such as singing, preening, feeding, and probing. The amount of time spent sitting was positively correlated with parasitemia and increased dramatically after infection and between treatment and control groups. Birds that succumbed to infection experienced a significant loss of body mass and subcutaneous fat, whereas surviving Apapane were better able to maintain body condition and fat levels. When rechallenged with the parasite five months after initial infection, surviving birds experienced no increase in parasitemia, indicating that they had become immune to reinfection. Regardless of the outcome, infected birds experienced acute illness that would have left them unable to forage or to escape from predators in the wild. JF - Auk AU - Yorinks, N AU - Atkinson, C T AD - United States Geological Survey, Pacific Island Ecosystems Research Center, P.O. Box 218, Hawaii National Park, HI 96718, USA, carter_atkinson@usgs.gov Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 731 EP - 738 PB - [URL:http://journals.allenpress.com/jrnlserv/?request=get-abstract &issn=0004-8038&volume=117&page=731] VL - 117 IS - 3 SN - 0004-8038, 0004-8038 KW - Apapane KW - Animal Behavior Abstracts; Ecology Abstracts KW - Survival KW - Malaria KW - Disease transmission KW - Himatione sanguinea KW - Immune response KW - Activity patterns KW - D 04671:Birds KW - Y 25506:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17629590?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Auk&rft.atitle=Effects+of+malaria+on+activity+budgets+of+experimentally+infected+juvenile+Apapane+%28Himatione+sanguinea%29&rft.au=Yorinks%2C+N%3BAtkinson%2C+C+T&rft.aulast=Yorinks&rft.aufirst=N&rft.date=2000-07-01&rft.volume=117&rft.issue=3&rft.spage=731&rft.isbn=&rft.btitle=&rft.title=Auk&rft.issn=00048038&rft_id=info:doi/10.1043%2F0004-8038%282000%29117%280731%3AEOMOAB%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Himatione sanguinea; Disease transmission; Malaria; Activity patterns; Immune response; Survival DO - http://dx.doi.org/10.1043/0004-8038(2000)117(0731:EOMOAB)2.0.CO;2 ER - TY - JOUR T1 - Nectar Plant Selection by the Karner Blue Butterfly (Lycaeides melissa samuelis) at the Indiana Dunes National Lakeshore AN - 17625258; 4765452 AB - The Karner blue butterfly, Lycaeides melissa samuelis, is an endangered species residing in savanna and barrens habitats in the Midwest and Northeast United States. To improve our understanding of nectar plant selection patterns by the Karner blue, we examined nectar plant choices made by 146 butterflies. Within observation areas of 2-m radius butterflies usually chose the nectar species with the greatest total number of flowers or flowering heads. This suggests that the Karner blue is opportunistic in selecting nectar plants. However, certain nectar species, including Arabis lyrata, Coreopsis lanceolata, Melilotus alba and Rubus flagellaris, were selected in a significant majority of cases when other nectar species were available nearby. At least in the case of R. flagellaris, this preference was not directly related to the species' local flower abundance. In a significant majority of cases (77.5%) adult Karner blues selected nectar plant species with yellow or white flowers over species with other-colored flowers. Comparison of nectar plant selections at Indiana Dunes National Lakeshore to selections from Michigan and Wisconsin suggests that the Karner blue most frequently chooses a suite of nectar plant species that includes A. lyrata, C. lanceolata, Euphorbia corollata, M. alba, Monarda punctata, Potentilla simplex, Rubus spp., Solidago speciosa and, perhaps, Asclepias tuberosa and Helianthus divaricatus. This suite includes plant species that readily flower in the sun and others that readily flower in the shade, an important consideration since Karner blues often move across the sun-shade interface. JF - American Midland Naturalist AU - Grundel, R AU - Pavlovic, N B AU - Sulzman, CL AD - United States Geological Survey, 1100 N. Mineral Springs Road, Porter, IN 46304, USA, ralph-grundel@usgs.gov Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 1 EP - 10 PB - [URL:http://journals.allenpress.com/jrnlserv/?request=get-abstract &issn=0003-0031&volume=144&page=1] VL - 144 IS - 1 SN - 0003-0031, 0003-0031 KW - Lepidoptera KW - Blues KW - USA, Indiana KW - Entomology Abstracts; Ecology Abstracts KW - Lycaenidae KW - Host selection KW - Endangered species KW - Nectar KW - Lycaeides melissa KW - Host plants KW - Z 05203:Relations to plants KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17625258?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Midland+Naturalist&rft.atitle=Nectar+Plant+Selection+by+the+Karner+Blue+Butterfly+%28Lycaeides+melissa+samuelis%29+at+the+Indiana+Dunes+National+Lakeshore&rft.au=Grundel%2C+R%3BPavlovic%2C+N+B%3BSulzman%2C+CL&rft.aulast=Grundel&rft.aufirst=R&rft.date=2000-07-01&rft.volume=144&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=American+Midland+Naturalist&rft.issn=00030031&rft_id=info:doi/10.1043%2F0003-0031%282000%29144%280001%3ANPSBTK%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lycaenidae; Lycaeides melissa; Host plants; Nectar; Endangered species; Host selection DO - http://dx.doi.org/10.1043/0003-0031(2000)144(0001:NPSBTK)2.0.CO;2 ER - TY - JOUR T1 - Competition Between Alien Annual Grasses and Native Annual Plants in the Mojave Desert AN - 17568435; 4765460 AB - Alien annual grasses in the genera Bromus and Schismus are widespread and abundant in the Mojave Desert, and negative correlations between these aliens and native annual plants suggest that competition may occur between them. Effects of competition were evaluated by thinning alien annual grass seedlings and measuring the responses of native annual plants at three sites in the central, southcentral and southwestern Mojave Desert during 2 y of contrasting plant productivity. Effects of Bromus and Schismus were evaluated separately in the microhabitat where each was most abundant, beneath the north side of creosote bushes (Larrea tridentata) for Bromus and in the open interspace between shrubs for Schismus. Thinning of Bromus and Schismus significantly increased density and biomass of native annuals at all three sites, only during a year of high annual plant productivity and species richness. Effects of thinning were greatest for Amsinckia tesselata and for a group of relatively uncommon native annuals. Thinning also significantly increased the density and biomass of the alien forb, Erodium cicutarium. These results show that alien annual grasses can compete with native annual plants and an alien forb in the Mojave Desert and that effects can vary among years. JF - American Midland Naturalist AU - Brooks, M L AD - Department of Biology, University of California, Riverside, CA 92521, USA, matt_brooks@usgs.gov Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 92 EP - 108 PB - [URL:http://journals.allenpress.com/jrnlserv/?request=get-abstract &issn=0003-0031&volume=144&page=92] VL - 144 IS - 1 SN - 0003-0031, 0003-0031 KW - USA, California KW - Ecology Abstracts KW - Community composition KW - Deserts KW - Plants KW - Population changes KW - Introduced species KW - Competition KW - D 04130:Arid zones UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17568435?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Midland+Naturalist&rft.atitle=Competition+Between+Alien+Annual+Grasses+and+Native+Annual+Plants+in+the+Mojave+Desert&rft.au=Brooks%2C+M+L&rft.aulast=Brooks&rft.aufirst=M&rft.date=2000-07-01&rft.volume=144&rft.issue=1&rft.spage=92&rft.isbn=&rft.btitle=&rft.title=American+Midland+Naturalist&rft.issn=00030031&rft_id=info:doi/10.1043%2F0003-0031%282000%29144%280092%3ACBAAGA%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Competition; Introduced species; Plants; Community composition; Population changes; Deserts DO - http://dx.doi.org/10.1043/0003-0031(2000)144(0092:CBAAGA)2.0.CO;2 ER - TY - JOUR T1 - Richness and diversity of helminth communities in tropical freshwater fishes: empirical evidence AN - 17036168; 4825562 AB - Published information on the richness and diversity of helminth parasite communities in tropical freshwater fishes is reviewed in response to expectations of species-rich parasite communities in tropical regions. Location Areas covered include the tropics and some subtropical areas. In addition, the north temperate area of the nearctic zone is included for comparison. Methods Data from 159 communities in 118 species of tropical freshwater fish, summarized from 46 published studies, were used for this review. Parasite community descriptors used in the analyses included component community richness and calculated mean species richness. Data from 130 communities in 47 species of nearctic north temperate freshwater fish were summarized from 31 studies and used for comparison. Results The component helminth communities of many tropical freshwater fish are species-poor, and considerable proportions of fish from certain parts of the tropics, e.g. West African drainages, are uninfected or lightly infected. Mean helminth species richness was low and equaled or exceeded 2.0 in only 22 of 114 communities. No single group of helminths was identified as a dominant component of the fauna and species composition was variable among and within broader geographical areas. The richest enteric helminth assemblages were found in mochokid and clariid catfish with a mixed carnivorous diet, whereas algal feeders, herbivores and detritivores generally had species-poor gut helminth communities. Comparisons indicated that certain areas in the north temperate region had higher helminth species richness in fishes than areas in the tropics. Main conclusions Expectations of high species richness in helminth communities of tropical freshwater fishes are not fulfilled by the data. Direct comparisons of infracommunities and component communities in host species across widely separated phylogenetic and geographical lines are inappropriate. Examination of latitudinal differences in richness of monophyletic parasite groups or of compound communities may uncover patterns different from those found in this study. Richness of helminth communities may be ultimately determined not by the number of host species present but by the degree of divergence of host lineages and by their diversification modes. A phylogenetic framework for hosts and parasites will reveal if increased host species richness within host clades, when host speciation is accompanied by habitat or diet specialization, or both, leads to lower helminth diversity in host species by fragmentation of a core helminth fauna characteristic or specific of the larger host clade. This pattern may be analysed in the context of cospeciation and acquisition from other unrelated hosts (host-sharing or host-switching). JF - Journal of Biogeography AU - Choudhury, A AU - Dick, T A AD - USGS-National Wildlife Health Center, 6006 Schroeder Road, Madison, Wisconsin 53711, USA Y1 - 2000/07// PY - 2000 DA - Jul 2000 SP - 935 EP - 956 VL - 27 IS - 4 SN - 0305-0270, 0305-0270 KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Speciation KW - Parasites KW - Hosts KW - Freshwater fish KW - Intestinal parasites KW - Pisces KW - Community composition KW - Food sources KW - Helminthes KW - Species diversity KW - Geographical variations KW - Species richness KW - Q1 08484:Species interactions: parasites and diseases KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17036168?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Biogeography&rft.atitle=Richness+and+diversity+of+helminth+communities+in+tropical+freshwater+fishes%3A+empirical+evidence&rft.au=Choudhury%2C+A%3BDick%2C+T+A&rft.aulast=Choudhury&rft.aufirst=A&rft.date=2000-07-01&rft.volume=27&rft.issue=4&rft.spage=935&rft.isbn=&rft.btitle=&rft.title=Journal+of+Biogeography&rft.issn=03050270&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Parasites; Species diversity; Hosts; Freshwater fish; Speciation; Community composition; Food sources; Geographical variations; Species richness; Intestinal parasites; Pisces; Helminthes ER - TY - JOUR T1 - Occurrence, transport, and fate of trace elements, Blue River Basin, Summit County, Colorado: An integrated approach AN - 17669683; 4727927 AB - Mining activities in the Blue River Basin, Summit County, Colorado, have affected the trace-element chemistry and biota along French Gulch and the Blue River. Elevated concentrations of As, Cd, Cu, Pb, and Zn were present in the bed and suspended sediments. Bed sediment trace-element concentrations were high in the streams in and near mining activities in the basin and remained high as water flowed into Dillon Reservoir about 3.5 km downstream. Bed-sediment ( 63 mu m) data were useful in assessing the distribution of trace elements in the basin. Suspended-sediment measurements provided information as to the transport of the trace elements. Filtered (0.45 mu m) water-column trace-element concentrations were orders of magnitude less than the sediment concentrations. Concentrations of Cd and Zn in the water column at some sites exceeded stream water-quality standards. Elevated trace-element concentrations in the sediment and water column are a source of contamination and must be considered in water-quality management of the Blue River Basin. JF - Environmental Geology AU - Apodaca, LE AU - Driver, N E AU - Bails, J B AD - U.S. Geological Survey, 12209 Sunrise Valley Drive, MS413, Reston, VA 20192 USA, lapodaca@usgs.gov Y1 - 2000/06/15/ PY - 2000 DA - 2000 Jun 15 SP - 901 EP - 913 PB - Springer-Verlag VL - 39 IS - 8 SN - 0943-0105, 0943-0105 KW - USA, Colorado, Summit Cty., Blue R. KW - Pollution Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality KW - Water Pollution KW - Path of Pollutants KW - Pollution dispersion KW - Chemical Analysis KW - Pollution effects KW - Bottom Sediments KW - Copper KW - Water quality KW - Lead KW - Sediment analysis KW - Trace elements KW - Resuspended sediments KW - Water Quality Standards KW - Fluvial deposits KW - Zinc KW - Sediment Contamination KW - Cadmium KW - Mine Drainage KW - Sediment chemistry KW - Sediment pollution KW - Suspended Sediments KW - Arsenic KW - Fate of Pollutants KW - Trace Elements KW - River basins KW - Water quality standards KW - Water pollution KW - Sediment-water interface KW - Water management KW - USA, Colorado, Blue R. KW - Mining KW - Chemical analysis KW - Q5 08523:Conservation, wildlife management and recreation KW - P 2000:FRESHWATER POLLUTION KW - Q2 09187:Geochemistry of sediments KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17669683?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Geology&rft.atitle=Occurrence%2C+transport%2C+and+fate+of+trace+elements%2C+Blue+River+Basin%2C+Summit+County%2C+Colorado%3A+An+integrated+approach&rft.au=Apodaca%2C+LE%3BDriver%2C+N+E%3BBails%2C+J+B&rft.aulast=Apodaca&rft.aufirst=LE&rft.date=2000-06-15&rft.volume=39&rft.issue=8&rft.spage=901&rft.isbn=&rft.btitle=&rft.title=Environmental+Geology&rft.issn=09430105&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Resuspended sediments; Sediment pollution; Sediment chemistry; Sediment-water interface; Fluvial deposits; Water management; River basins; Water quality; Chemical analysis; Water pollution; Sediment analysis; Trace elements; Arsenic; Pollution dispersion; Pollution effects; Copper; Water quality standards; Lead; Zinc; Cadmium; Mining; Water Pollution; Water Quality Standards; Suspended Sediments; Path of Pollutants; Fate of Pollutants; Chemical Analysis; Sediment Contamination; Bottom Sediments; Trace Elements; Mine Drainage; USA, Colorado, Blue R. ER - TY - JOUR T1 - Long-term impacts of the Exxon Valdez oil spill on sea otters, assessed through age-dependent mortality patterns. AN - 71163465; 10823920 AB - We use age distributions of sea otters (Enhydra lutris) found dead on beaches of western Prince William Sound, Alaska, between 1976 and 1998 in conjunction with time-varying demographic models to test for lingering effects from the 1989 Exxon Valdez oil spill. Our results show that sea otters in this area had decreased survival rates in the years following the spill and that the effects of the spill on annual survival increased rather than dissipated for older animals. Otters born after the 1989 spill were affected less than those alive in March 1989, but do show continuing negative effects through 1998. Population-wide effects of the spill appear to have slowly dissipated through time, due largely to the loss of cohorts alive during the spill. Our results demonstrate that the difficult-to-detect long-term impacts of environmental disasters may still be highly significant and can be rigorously analyzed by using a combination of population data, modeling techniques, and statistical analyses. JF - Proceedings of the National Academy of Sciences of the United States of America AU - Monson, D H AU - Doak, D F AU - Ballachey, B E AU - Johnson, A AU - Bodkin, J L AD - United States Geological Survey, Alaska Biological Science Center, 1011 East Tudor Road, Anchorage, AK 99503, USA. daniel_monson@usgs.gov Y1 - 2000/06/06/ PY - 2000 DA - 2000 Jun 06 SP - 6562 EP - 6567 VL - 97 IS - 12 SN - 0027-8424, 0027-8424 KW - Petroleum KW - 0 KW - Index Medicus KW - Mortality KW - Animals KW - Age Factors KW - Accidents KW - Alaska KW - Time Factors KW - Population Surveillance KW - Otters -- physiology KW - Environmental Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71163465?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.atitle=Long-term+impacts+of+the+Exxon+Valdez+oil+spill+on+sea+otters%2C+assessed+through+age-dependent+mortality+patterns.&rft.au=Monson%2C+D+H%3BDoak%2C+D+F%3BBallachey%2C+B+E%3BJohnson%2C+A%3BBodkin%2C+J+L&rft.aulast=Monson&rft.aufirst=D&rft.date=2000-06-06&rft.volume=97&rft.issue=12&rft.spage=6562&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.issn=00278424&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-07-13 N1 - Date created - 2000-07-13 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: Vet Pathol. 1995 Jul;32(4):346-50 [7483208] Vet Pathol. 1993 Jan;30(1):1-11 [8442322] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Determination of niclosamide residues in rainbow trout (Oncorhynchus mykiss) and channel catfish (Ictalurus punctatus) fillet tissue by high-performance liquid chromatography. AN - 71221559; 10888524 AB - Bayluscide [the ethanolamine salt of niclosamide (NIC)] is a registered piscicide used in combination with 3-(trifluoromethyl)-4-nitrophenol (TFM) to control sea lamprey populations in streams tributary to the Great Lakes. A high-performance liquid chromatography (HPLC) method was developed for the determination of NIC residues in muscle fillet tissues of fish exposed to NIC and TFM during sea lamprey control treatments. NIC was extracted from fortified channel catfish and rainbow trout fillet tissue with a series of acetone extractions and cleaned up on C(18) solid-phase extraction cartridges. NIC concentrations were determined by HPLC with detection at 360 and 335 nm for rainbow trout and catfish, respectively. Recovery of NIC from rainbow trout (n = 7) fortified at 0.04 microg/g was 77 +/- 6.5% and from channel catfish (n = 7) fortified at 0.02 microg/g was 113 +/- 11%. NIC detection limit was 0.0107 microg/g for rainbow trout and 0.0063 microg/g for catfish. Percent recovery of incurred radioactive residues by this method from catfish exposed to [(14)C]NIC was 89.3 +/- 4.1%. Percent recoveries of NIC from fortified storage stability tissue samples for rainbow trout (n = 3) analyzed at 5 and 7.5 month periods were 78 +/- 5.1 and 68 +/- 2.4%, respectively. Percent recoveries of NIC from fortified storage stability tissue samples for channel catfish (n = 3) analyzed at 5 and 7.5 month periods were 88 +/- 13 and 76 +/- 21%, respectively. JF - Journal of agricultural and food chemistry AU - Schreier, T M AU - Dawson, V K AU - Choi, Y AU - Spanjers, N J AU - Boogaard, M A AD - Upper Midwest Environmental Sciences Center, U.S. Geological Survey, La Crosse, WI 54603, USA. Theresa_Schreier@usgs.gov Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 2212 EP - 2215 VL - 48 IS - 6 SN - 0021-8561, 0021-8561 KW - Niclosamide KW - 8KK8CQ2K8G KW - Index Medicus KW - Lampreys KW - Animals KW - Ictaluridae KW - Chromatography, High Pressure Liquid -- methods KW - Oncorhynchus mykiss KW - Population Control KW - Drug Residues -- analysis KW - Meat -- analysis KW - Niclosamide -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71221559?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+agricultural+and+food+chemistry&rft.atitle=Determination+of+niclosamide+residues+in+rainbow+trout+%28Oncorhynchus+mykiss%29+and+channel+catfish+%28Ictalurus+punctatus%29+fillet+tissue+by+high-performance+liquid+chromatography.&rft.au=Schreier%2C+T+M%3BDawson%2C+V+K%3BChoi%2C+Y%3BSpanjers%2C+N+J%3BBoogaard%2C+M+A&rft.aulast=Schreier&rft.aufirst=T&rft.date=2000-06-01&rft.volume=48&rft.issue=6&rft.spage=2212&rft.isbn=&rft.btitle=&rft.title=Journal+of+agricultural+and+food+chemistry&rft.issn=00218561&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-08-28 N1 - Date created - 2000-08-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Vegetation survey of Campbell Tract, Anchorage, Alaska AN - 52245817; 2001-028315 JF - BLM - Alaska Technical Report AU - Guyer, Scott Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 59 PB - U. S. Department of the Interior, Bureau of Land Management, Alaska State Office, Anchorage, AK KW - United States KW - Campbell Alaska KW - geophysical surveys KW - vegetation KW - Southern Alaska KW - floral studies KW - land management KW - classification KW - surveys KW - aerial photography KW - ecology KW - Alaska KW - Anchorage Alaska KW - land use KW - remote sensing KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52245817?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Guyer%2C+Scott&rft.aulast=Guyer&rft.aufirst=Scott&rft.date=2000-06-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Vegetation+survey+of+Campbell+Tract%2C+Anchorage%2C+Alaska&rft.title=Vegetation+survey+of+Campbell+Tract%2C+Anchorage%2C+Alaska&rft.issn=&rft_id=info:doi/ L2 - http://www.blm.gov/ak/st/en/info/gen_pubs/tr.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 22 N1 - PubXState - AK N1 - Document feature - illus. incl. 16 tables, sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - #04969 N1 - SubjectsTermNotLitGenreText - aerial photography; Alaska; Anchorage Alaska; Campbell Alaska; classification; ecology; floral studies; geophysical surveys; land management; land use; remote sensing; Southern Alaska; surveys; United States; vegetation ER - TY - JOUR T1 - Canadian Geotechnical Journal = Revue Canadienne de Geotechnique AN - 52227723; 2001-041644 JF - Canadian Geotechnical Journal = Revue Canadienne de Geotechnique AU - Chugh, Ashok K AU - Rathje, E M AU - Bray, J D Y1 - 2000/06// PY - 2000 DA - June 2000 SP - 729 EP - 732 PB - National Research Council of Canada, Ottawa, ON VL - 37 IS - 3 SN - 0008-3674, 0008-3674 KW - embankments KW - rockfill dams KW - mathematical models KW - displacements KW - deformation KW - earthworks KW - earth dams KW - dams KW - ground motion KW - gravity dams KW - epicenters KW - earthquakes KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52227723?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Geotechnical+Journal+%3D+Revue+Canadienne+de+Geotechnique&rft.atitle=Canadian+Geotechnical+Journal+%3D+Revue+Canadienne+de+Geotechnique&rft.au=Chugh%2C+Ashok+K%3BRathje%2C+E+M%3BBray%2C+J+D&rft.aulast=Chugh&rft.aufirst=Ashok&rft.date=2000-06-01&rft.volume=37&rft.issue=3&rft.spage=729&rft.isbn=&rft.btitle=&rft.title=Canadian+Geotechnical+Journal+%3D+Revue+Canadienne+de+Geotechnique&rft.issn=00083674&rft_id=info:doi/ L2 - http://pubs.nrc-cnrc.gc.ca/rp-ps/journalDetail.jsp?jcode=cgj&lang=eng LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 7 N1 - PubXState - ON N1 - SuppNotes - For reference to original see Rathye, E. M. and Bray, J. D., Can. Geotech. J., Vol. 36, p. 72-87, 1999 N1 - Last updated - 2012-06-07 N1 - CODEN - CGJOAH N1 - SubjectsTermNotLitGenreText - dams; deformation; displacements; earth dams; earthquakes; earthworks; embankments; epicenters; gravity dams; ground motion; mathematical models; rockfill dams ER - TY - JOUR T1 - Distribution of benthic algae in the upper Illinois River basin in relation to geology and land use AN - 18395588; 5368805 AB - 1. Benthic-algal distributions in the upper Illinois River basin, IL, U.S.A., were examined in relation to geology, land use, water chemistry and stream habitat using (detrended) (canonical) correspondence analysis, autecological metrics and indicator-species analysis in order to identify the major environmental gradients influencing community variation. 2. Ionic composition and major nutrient [i.e. nitrogen (N) and phosphorus (P)] concentration of surface waters, salinity (Na-Cl type), substratum type and physiognomic form of dominant species were primary factors contributing to variation in benthic-algal assemblages of the basin. Basin geology was a significant contributing factor, but the explained variance associated with this factor was less than that related to land use. 3. Proportions of algal biomass consisting of cyanophytes, filamentous chlorophytes, halophilic diatoms and diatoms which utilize nitrogen heterotrophically were greater in eutrophic river segments than in less nutrient-enriched segments. Composition of the benthic flora indicated meso-eutrophic or eutrophic conditions throughout the basin; there were few diatoms indicative of hypertrophic waters. Shifts in diatom-assemblage structure in response to nutrient loading provided an incomplete representation of the community-response curve. 4. A weighted-averages regression model based on total P and benthic-algal abundances (all divisions included) yielded a highly significant correlation (r super(2) = 0.83) between species-inferred [WA sub((tol))] and observed total P, with systematic bias (increased deviation of residuals) occurring only at concentrations greater than similar to 1.0 mg L super(-1) total P. This result indicates that total P regression and calibration models can be predictable for a river basin receiving excessive loadings of phosphorus. JF - Freshwater Biology AU - Leland, H V AU - Porter, S D AD - Water Resources Division, U.S. Geological Survey, 3215 Marine Street, Boulder, CO 80303, USA, hvleland@usgs.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 279 EP - 301 VL - 44 IS - 2 SN - 0046-5070, 0046-5070 KW - Ecology Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - K 03009:Algae KW - D 04627:Algae/lichens UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18395588?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Freshwater+Biology&rft.atitle=Distribution+of+benthic+algae+in+the+upper+Illinois+River+basin+in+relation+to+geology+and+land+use&rft.au=Leland%2C+H+V%3BPorter%2C+S+D&rft.aulast=Leland&rft.aufirst=H&rft.date=2000-06-01&rft.volume=44&rft.issue=2&rft.spage=279&rft.isbn=&rft.btitle=&rft.title=Freshwater+Biology&rft.issn=00465070&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Efficacy of Hydrogen Peroxide to Control Mortalities Associated with Bacterial Gill Disease Infections on Hatchery-Reared Salmonids AN - 17819518; 4856719 AB - The efficacy of hydrogen peroxide to control mortalities associated with bacterial gill disease (BGD) was evaluated in three trials conducted at two Wisconsin Department of Natural Resources hatcheries. Microscopic examination of the fish gills before treatment revealed gill damage and the presence of bacteria indicative of BGD. In separate trials, brown trout Salmo trutta, chinook salmon Oncorhynchus tshawytscha, and rainbow trout O. mykiss were exposed to hydrogen peroxide concentrations of 0, 56, 110, or 230 mg/L for 30 or 60 min every other day. In all three trials, at least one of the hydrogen peroxide treatment regimens reduced cumulative fish mortality in comparison with the controls. Exposures of 230 mg/L for 60 min increased the risk of mortality in brown trout and chinook salmon relative to that at other treatment concentrations. Exposures of up to 230 mg/L for 30 min decreased the risk of mortality in rainbow trout. Posttreatment qualitative gill examination indicated that gills of the treated fish appeared normal, whereas the gills of control fish exhibited pale coloration, clubbing of filaments, and lamellar fusion. On the basis of the efficacy data, two static bath treatment regimens were effective in the control of BGD: hydrogen peroxide administered at concentrations of 56-110 mg/L as a 60-min exposure or hydrogen peroxide administered at concentrations of 56-230 mg/L as a 30-min exposure. JF - Journal of Aquatic Animal Health AU - Rach, J J AU - Gaikowski, M P AU - Ramsay, R T AD - U.S. Department of Interior, U.S. Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, Wisconsin 54603, USA, jeffrey_rach@usgs.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 119 EP - 127 VL - 12 IS - 2 SN - 0899-7659, 0899-7659 KW - Brown trout KW - Chinook salmon KW - Rainbow trout KW - bacterial gill disease KW - ASFA Aquaculture Abstracts; Microbiology Abstracts B: Bacteriology; ASFA 1: Biological Sciences & Living Resources KW - Salmo trutta KW - Mortality KW - Fish diseases KW - Hydrogen peroxide KW - Disease control KW - Therapy KW - Oncorhynchus mykiss KW - Disease detection KW - Oncorhynchus tshawytscha KW - Gills KW - J 02862:Infection KW - Q1 08587:Diseases of Cultured Organisms KW - Q3 08587:Diseases of Cultured Organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17819518?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Aquatic+Animal+Health&rft.atitle=Efficacy+of+Hydrogen+Peroxide+to+Control+Mortalities+Associated+with+Bacterial+Gill+Disease+Infections+on+Hatchery-Reared+Salmonids&rft.au=Rach%2C+J+J%3BGaikowski%2C+M+P%3BRamsay%2C+R+T&rft.aulast=Rach&rft.aufirst=J&rft.date=2000-06-01&rft.volume=12&rft.issue=2&rft.spage=119&rft.isbn=&rft.btitle=&rft.title=Journal+of+Aquatic+Animal+Health&rft.issn=08997659&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Mortality; Fish diseases; Therapy; Disease control; Disease detection; Gills; Hydrogen peroxide; Salmo trutta; Oncorhynchus mykiss; Oncorhynchus tshawytscha ER - TY - JOUR T1 - Age-specific breeding in Emperor Geese AN - 17812847; 4847509 AB - I studied the frequency with which Emperor Geese (Chen canagica) of known age were observed breeding on the Yukon-Kuskokwim Delta, Alaska. No one- or two-year old geese were observed on nests. Three-year old geese bred at a lower rate than four-year old geese. These data suggest that patterns of age-specific breeding in Emperor Geese are similar to other sympatrically nesting, large bodied geese [Greater White-fronted Geese (Anser albifrons)] but delayed relative to smaller bodied geese [Cackling Canada Geese (Branta canadensis minima) and Pacific Black Brant (B. bernicla nigricans)]. JF - Wilson Bulletin AU - Schmutz, JA AD - Alaska Biological Science Center, Biological Resources Division, U.S. Geological Survey, 1011 East Tudor Road, Anchorage, Alaska 99503, USA, joel_schmutz@usgs.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 261 EP - 263 VL - 112 IS - 2 SN - 0043-5643, 0043-5643 KW - Anser canagicus KW - Emperor goose KW - Snow geese KW - USA, Alaska KW - Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Age KW - USA, Alaska, Yukon-Kuskokwim Delta KW - Breeding KW - Nesting KW - Biological age KW - Reproductive behaviour KW - Chen canagica KW - D 04671:Birds KW - O 1050:Vertebrates, Urochordates and Cephalochordates KW - Q1 08423:Behaviour KW - Q1 08364:Reproduction and development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17812847?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wilson+Bulletin&rft.atitle=Age-specific+breeding+in+Emperor+Geese&rft.au=Schmutz%2C+JA&rft.aulast=Schmutz&rft.aufirst=JA&rft.date=2000-06-01&rft.volume=112&rft.issue=2&rft.spage=261&rft.isbn=&rft.btitle=&rft.title=Wilson+Bulletin&rft.issn=00435643&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Breeding; Nesting; Reproductive behaviour; Biological age; Age; Chen canagica; USA, Alaska, Yukon-Kuskokwim Delta ER - TY - JOUR T1 - Shaking table 2-D models of a concrete gravity dam AN - 17729222; 4795846 AB - One of the most famous and studied cases of dams subjected to earthquake loading is the Koyna Dam in India. In this study, a two-dimensional model of Koyna Dam at 1/50 scale was used on a shake table to simulate effects and serve as data for non-linear computer model calibration. A new concrete mix was designed for the non-linear similitude modelling. This new mix provided the correct kinematic failure of concrete at scale. Two models were tested to failure: one with an initial shrinkage crack and one monolith. Reservoir effects were not modelled. The results of both models are discussed and compared. The ability to model non-linear effects is discussed. JF - Earthquake Engineering & Structural Dynamics AU - Harris, D W AU - Snorteland, N AU - Dolen, T AU - Travers, F AD - Materials Engineering and Research Laboratory, U.S. Bureau of Reclamation, P.O. Box 25007, Denver, CO 80225, USA Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 769 EP - 787 VL - 29 IS - 6 SN - 0098-8847, 0098-8847 KW - India KW - Water Resources Abstracts KW - Gravity Dams KW - Calibrations KW - Earthquake Engineering KW - Computer Models KW - Model Studies KW - SW 6010:Structures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17729222?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earthquake+Engineering+%26+Structural+Dynamics&rft.atitle=Shaking+table+2-D+models+of+a+concrete+gravity+dam&rft.au=Harris%2C+D+W%3BSnorteland%2C+N%3BDolen%2C+T%3BTravers%2C+F&rft.aulast=Harris&rft.aufirst=D&rft.date=2000-06-01&rft.volume=29&rft.issue=6&rft.spage=769&rft.isbn=&rft.btitle=&rft.title=Earthquake+Engineering+%26+Structural+Dynamics&rft.issn=00988847&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Gravity Dams; Calibrations; Earthquake Engineering; Computer Models; Model Studies ER - TY - JOUR T1 - Dynamics of prey moving through a predator field: a model of migrating juvenile salmon AN - 17651788; 4746858 AB - The migration of a patch of prey through a field of relatively stationary predators is a situation that occurs frequently in nature. Making quantitative predictions concerning such phenomena may be difficult, however, because factors such as the number of the prey in the patch, the spatial length and velocity of the patch, and the feeding rate and satiation of the predators all interact in a complex way. However, such problems are of great practical importance in many management situations; e.g., calculating the mortality of juvenile salmon (smolts) swimming down a river or reservoir containing many predators. Salmon smolts often move downstream in patches short compared with the length of the reservoir. To take into account the spatial dependence of the interaction, we used a spatially-explicit, individual-based modeling approach. We found that the mortality of prey depends strongly on the number of prey in the patch, the downstream velocity of prey in the patch, and the dispersion or spread of the patch in size through time. Some counterintuitive phenomena are predicted, such as predators downstream capturing more prey per predator than those upstream, even though the number of prey may be greatly depleted by the time the prey patch reaches the downstream predators. Individual-based models may be necessary for complex spatial situations, such as salmonid migration, where processes such as schooling occur at fine scales and affect system predictions. We compare some results to predictions from other salmonid models. JF - Mathematical Biosciences AU - Petersen, J H AU - DeAngelis, D L AD - US Geological Survey, Biological Resources Division, Western Fishery Research Center, Columbia River Research Laboratory, Cook, WA 98605, USA, jim_petersen@usgs.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 97 EP - 114 VL - 165 IS - 2 SN - 0025-5564, 0025-5564 KW - Patch density KW - ASFA 1: Biological Sciences & Living Resources; Animal Behavior Abstracts; Ecology Abstracts KW - Rivers KW - Food organisms KW - Juveniles KW - Water reservoirs KW - Density dependence KW - Schooling behaviour KW - Anadromous species KW - Predation KW - Smolts KW - Predators KW - Migration KW - Models KW - Predator-prey interactions KW - Interspecific relationships KW - Migratory species KW - Predator prey interactions KW - Oncorhynchus KW - Mortality causes KW - Salmo KW - Q1 08483:Species interactions: general KW - Y 25841:General KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17651788?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mathematical+Biosciences&rft.atitle=Dynamics+of+prey+moving+through+a+predator+field%3A+a+model+of+migrating+juvenile+salmon&rft.au=Petersen%2C+J+H%3BDeAngelis%2C+D+L&rft.aulast=Petersen&rft.aufirst=J&rft.date=2000-06-01&rft.volume=165&rft.issue=2&rft.spage=97&rft.isbn=&rft.btitle=&rft.title=Mathematical+Biosciences&rft.issn=00255564&rft_id=info:doi/10.1016%2FS0025-5564%2800%2900017-1 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Rivers; Juveniles; Food organisms; Water reservoirs; Schooling behaviour; Density dependence; Anadromous species; Smolts; Predation; Predators; Migratory species; Interspecific relationships; Predator prey interactions; Mortality causes; Predator-prey interactions; Migration; Models; Oncorhynchus; Salmo DO - http://dx.doi.org/10.1016/S0025-5564(00)00017-1 ER - TY - JOUR T1 - Bacterial pathogen contagion studies among freshwater bivalves and salmonid fishes AN - 17627369; 4772985 AB - A part of the conservation efforts of native freshwater bivalves is a relocation program whereby animals are collected and moved to a safe refuge for maintenance and propagation. With the rearing of two different hosts, mussels and fish, on the same facility there is a question of the possibility for contagion of pathogens. The studies presented here are part of a continuing effort to address the concerns of contagion. Freshwater bivalves collected throughout the 1997 season were cultured for fish pathogens. Counts of total bacteria on cytophaga medium ranged between 1.07 x 10 super(5) and 4.99 x 10 super(5) cfu/g of mussel soft tissues. The predominate groups of bacteria were motile Aeromonas spp. and Pseudomonas spp., both of which include members that are opportunistic pathogens to salmonid fishes. No primary fish pathogens were cultured; however, cells with correct morphology for Renibacterium salmoninarum, cause of bacterial kidney disease, were detected from mussel soft tissues in all six trials using the direct fluorescent antibody test. Groups of mussels were subjected to 24-h waterborne challenges using bacteria cultured from healthy fish; no mortality occurred to any of the animals. Another group exposed to the fish pathogen Aeromonas salmonicida also showed no effects of the challenge; however, susceptible fish became infected and died after the fish were added to cohabit with this group of mussels. JF - Journal of Shellfish Research AU - Starliper, CE AU - Morrison, P AD - USGS-BRD Leetown Science Center, National Fish Health Research Laboratory, Kearneysville, WV 25430, USA Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 251 EP - 258 VL - 19 IS - 1 SN - 0730-8000, 0730-8000 KW - Bivalves KW - Clams KW - Salmonids KW - bacterial kidney disease KW - Microbiology Abstracts B: Bacteriology; ASFA 1: Biological Sciences & Living Resources KW - Aquatic bacteria KW - Bacterial diseases KW - Pseudomonas KW - Freshwater KW - Aquaculture KW - Aeromonas salmonicida KW - Opportunist infection KW - Disease transmission KW - Bivalvia KW - Freshwater molluscs KW - Aeromonas KW - Renibacterium salmoninarum KW - Fish diseases KW - Infectious diseases KW - Freshwater organisms KW - Mollusca KW - Salmonidae KW - Animal diseases KW - J 02870:Invertebrate bacteriology KW - J 02862:Infection KW - Q1 08484:Species interactions: parasites and diseases UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17627369?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Shellfish+Research&rft.atitle=Bacterial+pathogen+contagion+studies+among+freshwater+bivalves+and+salmonid+fishes&rft.au=Starliper%2C+CE%3BMorrison%2C+P&rft.aulast=Starliper&rft.aufirst=CE&rft.date=2000-06-01&rft.volume=19&rft.issue=1&rft.spage=251&rft.isbn=&rft.btitle=&rft.title=Journal+of+Shellfish+Research&rft.issn=07308000&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Freshwater molluscs; Infectious diseases; Fish diseases; Bacterial diseases; Animal diseases; Aquatic bacteria; Freshwater organisms; Aquaculture; Disease transmission; Opportunist infection; Bivalvia; Renibacterium salmoninarum; Aeromonas; Pseudomonas; Mollusca; Salmonidae; Aeromonas salmonicida; Freshwater ER - TY - JOUR T1 - Invertebrate assemblages and trace element bioaccumulation associated with constructed wetlands AN - 17611384; 4746145 AB - Invertebrate assemblages were studied in eight monoculture wetland mesocosms constructed for wastewater treatment. Low concentrations of dissolved oxygen (D.O.) were measured in bulrush mesocosms while higher concentrations of D.O. were measured in open water mesocosms containing submerged pondweeds. Invertebrate taxa richness was positively related to D.O. concentrations that were, in turn, related to vegetation communities. Reference wetland sites contained a variety of plant species along with extensive open water areas. Invertebrate taxa richness was greater at reference sites than in any wastewater mesocosm. Invertebrate samples from the wastewater mesocosms and reference sites were analyzed for five trace elements. While the concentrations of aluminum, arsenic, mercury, and silver were below values harmful to wildlife, the concentrations of selenium reached levels of moderate concern on one occasion. Data from this study suggest that selenium bioaccumulation by invertebrates may be related to the type of vegetation community or detrital habitat type. Wetlands designed for invertebrate production for waterfowl should take into account the potential for low D.O. concentrations and trace element bioaccumulation associated with vegetation community types. JF - Wetlands AU - Nelson, S M AU - Roline, R A AU - Thullen, J S AU - Sartoris, J J AU - Boutwell, JE AD - Bureau of Reclamation, Technical Service Center, Denver, CO 80225, USA Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 406 EP - 415 VL - 20 IS - 2 SN - 0277-5212, 0277-5212 KW - invertebrata KW - Aqualine Abstracts; Entomology Abstracts; Ecology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Water Resources Abstracts KW - Animals (Invertebrates) (see also Individual groups) KW - Scirpus KW - Heavy metals KW - Artificial wetlands KW - Invertebrates KW - Freshwater KW - Wastewater treatment KW - Dissolved oxygen KW - Trace elements KW - Selenium KW - Vegetation cover KW - Potamogeton KW - Invertebrata KW - Wetlands KW - Plant populations KW - Arsenic KW - Dissolved Oxygen KW - Aquatic plants KW - Trace Elements KW - Heavy Metals KW - Community composition KW - Bioaccumulation KW - Community structure KW - Aluminum KW - Aluminium KW - Wastewater Treatment KW - Oxygen (Dissolved) KW - AQ 00006:Sewage KW - Q1 08463:Habitat community studies KW - Z 05210:Aquatic entomology KW - D 04200:Wetlands KW - SW 3030:Effects of pollution KW - Q5 08522:Protective measures and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17611384?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wetlands&rft.atitle=Invertebrate+assemblages+and+trace+element+bioaccumulation+associated+with+constructed+wetlands&rft.au=Nelson%2C+S+M%3BRoline%2C+R+A%3BThullen%2C+J+S%3BSartoris%2C+J+J%3BBoutwell%2C+JE&rft.aulast=Nelson&rft.aufirst=S&rft.date=2000-06-01&rft.volume=20&rft.issue=2&rft.spage=406&rft.isbn=&rft.btitle=&rft.title=Wetlands&rft.issn=02775212&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Arsenic; Heavy metals; Aquatic plants; Wastewater treatment; Dissolved oxygen; Trace elements; Vegetation cover; Selenium; Community composition; Bioaccumulation; Aluminium; Wetlands; Plant populations; Community structure; Artificial wetlands; Animals (Invertebrates) (see also Individual groups); Oxygen (Dissolved); Aluminum; Dissolved Oxygen; Trace Elements; Invertebrates; Wastewater Treatment; Heavy Metals; Potamogeton; Scirpus; Invertebrata; Freshwater ER - TY - JOUR T1 - Problems Associated with Estimating Ground Water Discharge and Recharge from Stream-Discharge Records AN - 17608966; 4729069 AB - Ground water discharge and recharge frequently have been estimated with hydrograph-separation techniques, but the critical assumptions of the techniques have not been investigated. The critical assumptions are that the hydraulic characteristics of the contributing aquifer (recession index) can be estimated from stream-discharge records; that periods of exclusively ground water discharge can be reliably identified; and that stream-discharge peaks approximate the magnitude and timing of recharge events. The first assumption was tested by estimating the recession index from stream-discharge hydrographs, ground water hydrographs, and hydraulic diffusivity estimates from aquifer tests in basins throughout the eastern United States and Montana. The recession index frequently could not be estimated reliably from stream-discharge records alone because many of the estimates of the recession index were greater than 1000 days. The ratio of stream discharge during baseflow periods was two to 36 times greater than the maximum expected range of ground water discharge at 12 of the 13 field sites. The identification of the ground water component of stream-discharge records was ambiguous because drainage from bank-storage, wetlands, surface water bodies, soils, and snowpacks frequently exceeded ground water discharge and also decreased exponentially during recession periods. The timing and magnitude of recharge events could not be ascertained from stream-discharge records at any of the sites investigated because recharge events were not directly correlated with stream peaks. When used alone, the recession-curve-displacement method and other hydrograph-separation techniques are poor tools for estimating ground water discharge or recharge because the major assumptions of the methods are commonly and grossly violated. Multiple, alternative methods of estimating ground water discharge and recharge should be used because of the uncertainty associated with any one technique. JF - Ground Water AU - Halford, K J AU - Mayer, G C AD - U.S. Geological Survey, 333 W. Nye Ln., Rm. 203, Carson City, NV 89706, USA, khalford@usgs.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 331 EP - 342 VL - 38 IS - 3 SN - 0017-467X, 0017-467X KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - Flow KW - Discharge (of Natural waters) KW - Recharge KW - Hydraulics KW - Groundwater Discharge KW - Surface water KW - Base Flow KW - River discharge KW - Stream flow KW - Surface-groundwater Relations KW - Ground water KW - Hydrology KW - Hydrographs KW - Stream Discharge KW - Groundwater Recharge KW - Hydrologic Data KW - Data Interpretation KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General KW - Q2 09171:Dynamics of lakes and rivers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17608966?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Problems+Associated+with+Estimating+Ground+Water+Discharge+and+Recharge+from+Stream-Discharge+Records&rft.au=Halford%2C+K+J%3BMayer%2C+G+C&rft.aulast=Halford&rft.aufirst=K&rft.date=2000-06-01&rft.volume=38&rft.issue=3&rft.spage=331&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Hydraulics; Surface water; River discharge; Ground water; Hydrology; Stream flow; Recharge; Discharge (of Natural waters); Flow; Hydrographs; Surface-groundwater Relations; Groundwater Discharge; Base Flow; Stream Discharge; Data Interpretation; Hydrologic Data; Groundwater Recharge ER - TY - JOUR T1 - Relation of Pathways and Transit Times of Recharge Water to Nitrate Concentrations Using Stable Isotopes AN - 17607325; 4729072 AB - Surficial sand and gravel aquifers are recharged primarily by infiltration of precipitation and are vulnerable to contamination by chemicals leached through soils. Contamination of shallow ground water with nitrate nitrogen (nitrate) from agricultural fertilizers, animal waste, or septic systems is a widely documented problem (Hallberg 1989; Fedkiw 1991; Puckett 1995). Because chemical reactions that affect solutes are time dependent, the transit time of water in the unsaturated zone of sand and gravel aquifers can be a critical factor in determining solute concentrations in recharge water. Oxygen and hydrogen stable isotope values of precipitation, irrigation water, soil water, and ground water were used with soil-moisture contents and water levels to estimate transit times and pathways of recharge water in the unsaturated zone of a sand and gravel aquifer. Nitrate-nitrogen (nitrate) concentrations in ground water were also measured to assess their relation to seasonal recharge. Stable isotope values indicated that recharge water usually had a transit time through the unsaturated zone of several weeks to months. However, wetting fronts usually moved through the unsaturated zone in hours to weeks. The much slower transit of isotopic signals than that of wetting fronts indicates that recharge was predominantly composed of older soil water that was displaced downward by more recent infiltrating water. Comparison of observed and simulated isotopic values from pure-piston flow and mixing-cell water and isotope mass balance models indicates that soil water isotopic values were usually highly mixed. Thus, movement of recharge water did not occur following a pure piston-flow displacement model but rather follows a hydrid model involving displacement of mixed older soil water with new infiltration water. An exception to this model occurred in a topographic depression, where movement of water along preferential flowpaths to the water table occurred within hours to days following spring thaw as result of depression-focused infiltration of snow melt. In an adjacent upland area, recharge of snow melt occurred one to two months later. Increases in nitrate concentrations at the water table during April-May 1993 and 1994 in a topographic lowland within a corn field were related to recharge of water that had infiltrated the previous summer and was displaced from the unsaturated zone by spring infiltration. Increases in nitrate concentrations also occurred during July-August 1994 in response to recharge of water that infiltrated during May-August 1994. These results indicate that the largest ground water nitrate concentrations were associated with recharge of water that infiltrated into the soil during May-August, when most nitrogen fertilizer was applied. JF - Ground Water AU - Landon, M K AU - Delin, G N AU - Komor, S C AU - Regan, C P AD - U.S. Geological Survey, 100 Centennial Mall N., Rm. 406 Federal Bldg., Lincoln, NE 68508, USA, landon@usgs.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 381 EP - 395 VL - 38 IS - 3 SN - 0017-467X, 0017-467X KW - recharge water KW - Pollution Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Aquifers KW - Nitrate KW - Isotopes KW - Contamination KW - Water Pollution Sources KW - Residence time KW - Agricultural pollution KW - Pollution dispersion KW - Water table KW - Groundwater Pollution KW - Soil Water KW - Topographic effects KW - Hydrogen isotopes KW - Groundwater recharge KW - Fertilizers KW - Leaching KW - Nitrates KW - Soil/water systems KW - Pollution (Groundwater) KW - Oxygen isotopes KW - Stable Isotopes KW - Infiltration KW - Groundwater pollution KW - Ground water recharge KW - Groundwater Recharge KW - Pollution (Water) KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - SW 0840:Groundwater KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17607325?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Relation+of+Pathways+and+Transit+Times+of+Recharge+Water+to+Nitrate+Concentrations+Using+Stable+Isotopes&rft.au=Landon%2C+M+K%3BDelin%2C+G+N%3BKomor%2C+S+C%3BRegan%2C+C+P&rft.aulast=Landon&rft.aufirst=M&rft.date=2000-06-01&rft.volume=38&rft.issue=3&rft.spage=381&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Oxygen isotopes; Fertilizers; Leaching; Nitrates; Residence time; Agricultural pollution; Pollution dispersion; Water table; Groundwater pollution; Topographic effects; Hydrogen isotopes; Isotopes; Groundwater recharge; Contamination; Infiltration; Aquifers; Pollution (Groundwater); Nitrate; Soil/water systems; Ground water recharge; Pollution (Water); Stable Isotopes; Water Pollution Sources; Groundwater Pollution; Soil Water; Groundwater Recharge ER - TY - JOUR T1 - Microbial H sub(2) Cycling Does Not Affect delta super(2)H Values of Ground Water AN - 17607103; 4729071 AB - Stable hydrogen-isotope values of ground water ( delta super(2)H) and dissolved hydrogen concentrations (H sub(2(aq))) were quantified in a petroleum-hydrocarbon contaminated aquifer to determine whether the production/consumption of H sub(2) by subsurface microorganisms affects ground water delta super(2)H values. The range of delta super(2)H observed in monitoring wells sampled (-27.8 ppt to -15.5 ppt) was best explained, however, by seasonal differences in recharge temperature as indicated using ground water delta super(18)O values, rather than isotopic exchange reactions involving the microbial cycling of H sub(2) during anaerobic petroleum-hydrocarbon biodegradation. The absence of a measurable hydrogen-isotope exchange between microbially cycled H sub(2) and ground water reflects the fact that the amount of H sub(2) available from the anaerobic decomposition of petroleum hydrocarbons is small relative to the amount of hydrogen present in water, even though milligram per liter concentrations of readily biodegradable contaminants are present at the study site. Additionally, isotopic fractionation calculations indicate that in order for H sub(2) cycling processes to affect delta super(2)H values of ground water, relatively high concentrations of H sub(2) (>0.080 M) would have to be maintained, considerably higher than the 0.2 to 26 nM present at this site and characteristic of anaerobic conditions in general. These observations suggest that the conventional approach of using delta super(2)H and delta super(18)O values to determine recharge history is appropriate even for those ground water systems characterized by anaerobic conditions and extensive microbial H sub(2) cycling. JF - Ground Water AU - Landmeyer, JE AU - Chapelle, F H AU - Bradley, P M AD - U.S. Geological Survey, 720 Gracern Rd., Ste. 129, Columbia, SC 29210-7651, USA, jlandmey@usgs.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 376 EP - 380 VL - 38 IS - 3 SN - 0017-467X, 0017-467X KW - Bacteria KW - microbial cycling KW - Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Microbiology Abstracts A: Industrial & Applied Microbiology; Water Resources Abstracts KW - Aquifers KW - Isotopes KW - Biodegradation KW - Hydrogen sulphide KW - Groundwater Pollution KW - Hydrogen KW - Freshwater KW - Hydrogen Sulfide KW - Hydrogen isotopes KW - Petroleum KW - Ground water KW - Isotope fractionation KW - Anaerobic bacteria KW - Biogeochemistry KW - Biogeochemical cycle KW - Hydrocarbons KW - Pollution (Groundwater) KW - Stable Isotopes KW - hydrogen KW - Groundwater (see also Aquifers) KW - Oxygen Isotopes KW - Groundwater pollution KW - Hydrocarbon KW - Groundwater KW - Petroleum hydrocarbons KW - AQ 00001:Water Resources and Supplies KW - Q5 08504:Effects on organisms KW - SW 0840:Groundwater KW - A 01108:Other water systems UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17607103?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Microbial+H+sub%282%29+Cycling+Does+Not+Affect+delta+super%282%29H+Values+of+Ground+Water&rft.au=Landmeyer%2C+JE%3BChapelle%2C+F+H%3BBradley%2C+P+M&rft.aulast=Landmeyer&rft.aufirst=JE&rft.date=2000-06-01&rft.volume=38&rft.issue=3&rft.spage=376&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Biodegradation; Hydrocarbons; Biogeochemical cycle; Hydrogen sulphide; Groundwater pollution; Isotope fractionation; Petroleum hydrocarbons; Hydrogen isotopes; Anaerobic bacteria; Aquifers; Biogeochemistry; Petroleum; hydrogen; Ground water; Pollution (Groundwater); Bacteria; Isotopes; Groundwater (see also Aquifers); Hydrocarbon; Hydrogen; Stable Isotopes; Oxygen Isotopes; Groundwater Pollution; Groundwater; Hydrogen Sulfide; Freshwater ER - TY - JOUR T1 - A Field Technique for Estimating Aquifer Parameters Using Flow Log Data AN - 17604054; 4737270 AB - A numerical model is used to predict flow along intervals between producing zones in open boreholes for comparison with measurements of borehole flow. The model gives flow under quasi-steady conditions as a function of the transmissivity and hydraulic head in an arbitrary number of zones communicating with each other along open boreholes. The theory shows that the amount of inflow to or outflow from the borehole under any one flow condition may not indicate relative zone transmissivity. A unique inversion for both hydraulic-head and transmissivity values is possible if flow is measured under two different conditions such as ambient and quasi-steady pumping, and if the difference in open-borehole water level between the two flow conditions is measured. The technique is shown to give useful estimates of water levels and transmissivities of two or more water-producing zones intersecting a single interval of open borehole under typical field conditions. Although the modeling technique involves some approximation, the principle limit on the accuracy of the method under field conditions is the measurement error in the flow log data. Flow measurements and pumping conditions are usually adjusted so that transmissivity estimates are most accurate for the most transmissive zones, and relative measurement error is proportionately larger for less transmissive zones. The most effective general application of the borehole-flow model results when the data are fit to models that systematically include more production zones of progressively smaller transmissivity values until model results show that all accuracy in the data set is exhausted. JF - Ground Water AU - Paillet, F L AD - U.S. Geological Survey, P.O. Box 25046, MS 403, Denver, CO 80225, USA, fpaillet@usgs.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 510 EP - 521 VL - 38 IS - 4 SN - 0017-467X, 0017-467X KW - Aqualine Abstracts; Water Resources Abstracts KW - Prediction KW - Aquifers KW - Hydraulics KW - Water level KW - Transmission KW - Logging (Recording) KW - Well Data KW - Estimating KW - Water Level KW - Field Tests KW - Transmissivity KW - Boreholes KW - Model Studies KW - Numerical Analysis KW - Numerical analysis KW - Field studies KW - Zones KW - Hydraulic Properties KW - SW 0840:Groundwater KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17604054?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=A+Field+Technique+for+Estimating+Aquifer+Parameters+Using+Flow+Log+Data&rft.au=Paillet%2C+F+L&rft.aulast=Paillet&rft.aufirst=F&rft.date=2000-06-01&rft.volume=38&rft.issue=4&rft.spage=510&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Field Tests; Aquifers; Estimating; Well Data; Logging (Recording); Boreholes; Numerical Analysis; Model Studies; Prediction; Transmissivity; Hydraulic Properties; Water Level; Zones; Field studies; Numerical analysis; Transmission; Hydraulics; Water level ER - TY - JOUR T1 - Strontium isotope geochemistry of groundwaters and streams affected by agriculture, Locust Grove, MD AN - 17588114; 4698758 AB - The effects of agriculture on the isotope geochemistry of Sr were investigated in two small watersheds in the Atlantic coastal plain of Maryland. Stratified shallow oxic groundwaters in both watersheds contained a retrievable record of increasing recharge rates of chemicals including NO sub(3) super(-), Cl, Mg, Ca and Sr that were correlated with increasing fertilizer use between about 1940 and 1990. The component of Sr associated with recent agricultural recharge was relatively radiogenic ( super(87)Sr/ super(86)Sr=0.715) and it was overwhelming with respect to Sr acquired naturally by water-rock interactions in the oxidized, non-calcareous portion of the saturated zone. Agricultural groundwaters that penetrated relatively unoxidized calcareous glauconitic sediments at depth acquired an additional component of Sr from dissolution of early Tertiary marine CaCO sub(3) ( super(87)Sr/ super(86)Sr=0.708) while undergoing O sub(2) reduction and denitrification. Ground-water discharge contained mixtures of waters of various ages and redox states. Two streams draining the area are considered to have higher super(87)Sr/ super(86)Sr ratios and NO sub(3) super(-) concentrations than they would in the absence of agriculture; however, the streams have consistently different super(87)Sr/ super(86)Sr ratios and NO sub(3) super(-) concentrations because the average depth to calcareous reducing (denitrifying) sediments in the local groundwater flow system was different in the two watersheds. The results of this study indicate that agriculture can alter significantly the isotope geochemistry of Sr in aquifers and streams and that the effects could vary depending on the types, sources and amounts of fertilizers added, the history of fertilizer use and groundwater residence times. JF - Applied Geochemistry AU - Boehlke, J K AU - Horan, M AD - US Geological Survey, 431 National Center, Reston, VA 20192, USA, jkbohlke@usgs.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 599 EP - 609 VL - 15 IS - 5 SN - 0883-2927, 0883-2927 KW - USA, Maryland, Locust Grove KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Agriculture KW - Coastal Plains KW - Residence time KW - Surface water KW - Agricultural pollution KW - Coastal plain KW - Pollution effects KW - Groundwater Pollution KW - Freshwater KW - Watersheds KW - Strontium isotopes KW - Fertilizers KW - Recharge KW - Strontium Radioisotopes KW - Groundwater flow KW - Geochemistry KW - Isotope Studies KW - Pollution (Groundwater) KW - Water Pollution Effects KW - Groundwater pollution KW - Strontium KW - Groundwater Recharge KW - Groundwater Movement KW - Pollution (Water) KW - Q5 08503:Characteristics, behavior and fate KW - SW 0880:Chemical processes KW - P 2000:FRESHWATER POLLUTION KW - SW 3030:Effects of pollution KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17588114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Geochemistry&rft.atitle=Strontium+isotope+geochemistry+of+groundwaters+and+streams+affected+by+agriculture%2C+Locust+Grove%2C+MD&rft.au=Boehlke%2C+J+K%3BHoran%2C+M&rft.aulast=Boehlke&rft.aufirst=J&rft.date=2000-06-01&rft.volume=15&rft.issue=5&rft.spage=599&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/10.1016%2FS0883-2927%2899%2900075-X LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Fertilizers; Surface water; Residence time; Agricultural pollution; Geochemistry; Groundwater pollution; Pollution effects; Strontium isotopes; Strontium; Watersheds; Pollution (Groundwater); Recharge; Agriculture; Groundwater flow; Coastal plain; Pollution (Water); Coastal Plains; Water Pollution Effects; Strontium Radioisotopes; Groundwater Pollution; Isotope Studies; Groundwater Movement; Groundwater Recharge; Freshwater DO - http://dx.doi.org/10.1016/S0883-2927(99)00075-X ER - TY - JOUR T1 - Recovery of tall cotton-grass following real and simulated feeding by snow geese AN - 17554962; 4739681 AB - Lesser snow geese Anser caerulescens caerulescens from the western Canadian Arctic feed on underground parts of tall cotton-grass Eriophorum angustifolium during autumn staging on the coastal plain of the Beaufort Sea in Canada and Alaska. We studied revegetation of sites where cotton-grass had been removed either by human-imprinted snow geese or by hand to simulate snow goose feeding. Aerial cover of cotton-grass at sites (n = 4) exploited by human-imprinted snow geese averaged 60 and 39% lower than in undisturbed control plots during the first and second year after feeding, respectively. Underground biomass of cotton-grass stembases and rhizomes in hand-treated plots was 80 and 62% less than in control plots 2 and 4 yr after removal, respectively (n = 10 yr super(-1)). Aerial cover and biomass of common non-forage species such as Carex aquatilis did not increase on treated areas. Removal of cotton-grass by geese likely reduces forage availability at exploited sites for at least 2-4 yr after feeding but probably does not affect long-term community composition. Temporal heterogeneity in forage abundance likely contributes to the large spatial requirement of snow geese during staging. JF - Ecography AU - Hupp, J W AU - Robertson, D G AU - Schmutz, JA AD - U.S. Geological Survey, Alaska Biological Science Center, 1011 E. Tudor Road, Anchorage, AK 99503, USA, jerry_hupp@usgs.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 367 EP - 373 VL - 23 IS - 3 SN - 0906-7590, 0906-7590 KW - Recovery KW - Lesser Snow Goose KW - North America KW - Ecology Abstracts KW - Grasses KW - Revegetation KW - Herbivory KW - Forage KW - Eriophorum angustifolium KW - Chen caerulescens caerulescens KW - D 04636:Grasses UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17554962?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecography&rft.atitle=Recovery+of+tall+cotton-grass+following+real+and+simulated+feeding+by+snow+geese&rft.au=Hupp%2C+J+W%3BRobertson%2C+D+G%3BSchmutz%2C+JA&rft.aulast=Hupp&rft.aufirst=J&rft.date=2000-06-01&rft.volume=23&rft.issue=3&rft.spage=367&rft.isbn=&rft.btitle=&rft.title=Ecography&rft.issn=09067590&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Chen caerulescens caerulescens; Eriophorum angustifolium; Grasses; Revegetation; Herbivory; Forage ER - TY - JOUR T1 - Patterns Of Colony-Site Use And Disuse In Saltmarsh-Nesting Common And Roseate Terns AN - 17303619; 5975229 AB - Nearly all previous studies of saltmarsh-nesting Common Terns on the east coast of the United States have concluded that tidal saltmarshes were suboptimal or marginal breeding habitats. Questioning that conclusion, we analyzed patterns of both saltmarsh and nonmarsh colony use (stability, movement, establishment, abandonment, and size) obtained during 5 yr of annual helicopter censuses of all Common and Roseate terns breeding on Long Island, New York. We found 1900-3600 pairs at 10-33 saltmarsh and 22-30 nonmarsh sites; there were few biologically important differences between Common Terns nesting at marsh and at nonmarsh sites. We did find that (1) marsh sites and colony sizes increased through the study period; (2) both marsh and nonmarsh colonies grew with duration of occupancy; (3) smaller marsh and nonmarsh colonies (<50 pairs) usually lasted only 1-2 yr, while larger colonies were equally likely to persist for 1, 2, 3, 4, or 5 yr; (4) numbers of marsh and nonmarsh sites used each year were generally unrelated to population sizes; (5) 5-yr sites composed only 10.6% of total marsh and 17.6% of total nonmarsh sites; (6) the mean sizes of both newly established and about-to-be-abandoned colonies were smaller than the mean sizes of all others when averaged between but not within years; (7) most previously occupied sites, once abandoned, remained so for only 1 yr, and most new sites were occupied for only a single year; (8) annual turnover rates were 32%-49% for both marsh and nonmarsh sites; (9) marsh and nonmarsh breeding populations were correlated each year, allowing estimation of the total Long Island population to within A-4% by censusing only the 20-25% in saltmarshes. Roseate Tern data were few, especially in marshes, obviating marsh-nonmarsh comparisons, except that Roseates failed to persist in saltmarshes, and their overall mean colony sizes across the same numbers of years' occupancy were usually smaller than Commons', although their turnover rates were roughly the same. We conclude that saltmarsh-nesting Common Terns are well adapted to marsh nesting and that they have probably been doing so for perhaps hundreds of generations. We hypothesize that it may have been a relict population of saltmarsh-nesters that saved the species from extirpation in the late 1800s. In contrast, Roseate Tern's failure to exploit extensive saltmarsh habitat seems yet another factor abetting its precarious status in northeastern North America. JF - Journal of Field Ornithology AU - Buckley, P A AU - Buckley, F G AD - USGS-Patuxent Wildlife Research Center, Box 8, Graduate School of Oceanography, University of Rhode Island, Narragansett, Rhode Island 02882 USA,, pabuckley@gsosun1.gso.uri.edu Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 356 EP - 369 PB - Association of Field Ornithologists VL - 71 IS - 2 SN - 0273-8570, 0273-8570 KW - Animal Behavior Abstracts; Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Marine KW - Y 25501:General KW - Q1 01423:Behaviour KW - D 04300:Aquatic ecosystems - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17303619?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Field+Ornithology&rft.atitle=Patterns+Of+Colony-Site+Use+And+Disuse+In+Saltmarsh-Nesting+Common+And+Roseate+Terns&rft.au=Buckley%2C+P+A%3BBuckley%2C+F+G&rft.aulast=Buckley&rft.aufirst=P&rft.date=2000-06-01&rft.volume=71&rft.issue=2&rft.spage=356&rft.isbn=&rft.btitle=&rft.title=Journal+of+Field+Ornithology&rft.issn=02738570&rft_id=info:doi/10.1043%2F0273-8570%282000%290712.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0273-8570&volume=71&page=356 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-08-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Marine DO - http://dx.doi.org/10.1043/0273-8570(2000)071<0356:POCSUA>2.0.CO;2 ER - TY - JOUR T1 - Comparison Of Line Transects And Point Counts For Monitoring Spring Migration In Forested Wetlands AN - 17302947; 5975228 AB - We compared the efficacy of 400-m line transects and sets of three point counts at detecting avian richness and abundance in bottomland hardwood forests and intensively managed cottonwood (Populus deltoides) plantations within the Mississippi Alluvial Valley. We detected more species and more individuals on line transects than on three point counts during 218 paired surveys conducted between 24 March and 3 June, 1996 and 1997. Line transects also yielded more birds per unit of time, even though point counts yielded higher estimates of relative bird density. In structurally more-complex bottomland hardwood forests, we detected more species and individuals on line transects, but in more-open cottonwood plantations, transects surpassed point counts only at detecting species within 50 m of the observer. Species richness and total abundance of Nearctic-Neotropical migrants and temperate migrants were greater on line transects within bottomland hardwood forests. Within cottonwood plantations, however, only species richness of Nearctic-Neotropical migrants and total abundance of temperate migrants were greater on line transects. Because we compared survey techniques using the same observer, within the same forest stand on a given day, we assumed that the technique yielding greater estimates of avian species richness and total abundance per unit of effort is superior. Thus, for monitoring migration within hardwood forests of the Mississippi Alluvial Valley, we recommend using line transects instead of point counts. JF - Journal of Field Ornithology AU - Wilson, R R AU - Twedt, D J AU - Elliott, AB AD - USGS Patuxent Wildlife Research Center, 2524 South Frontage Road, Suite C, Vicksburg, Mississippi 39180 USA Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 345 EP - 355 PB - Association of Field Ornithologists VL - 71 IS - 2 SN - 0273-8570, 0273-8570 KW - Eastern cottonwood KW - Plains cottonwood KW - Ecology Abstracts; Animal Behavior Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Freshwater KW - Y 25501:General KW - D 04300:Aquatic ecosystems - general KW - Q1 01421:Migrations and rhythms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17302947?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Field+Ornithology&rft.atitle=Comparison+Of+Line+Transects+And+Point+Counts+For+Monitoring+Spring+Migration+In+Forested+Wetlands&rft.au=Wilson%2C+R+R%3BTwedt%2C+D+J%3BElliott%2C+AB&rft.aulast=Wilson&rft.aufirst=R&rft.date=2000-06-01&rft.volume=71&rft.issue=2&rft.spage=345&rft.isbn=&rft.btitle=&rft.title=Journal+of+Field+Ornithology&rft.issn=02738570&rft_id=info:doi/10.1043%2F0273-8570%282000%290712.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0273-8570&volume=71&page=345 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-08-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Freshwater DO - http://dx.doi.org/10.1043/0273-8570(2000)071<0345:COLTAP>2.0.CO;2 ER - TY - JOUR T1 - Relation of Waterfowl Poisoning to Sediment Lead Concentrations in the Coeur d'Alene River Basin AN - 17041833; 4803274 AB - For many years, waterfowl have been poisoned by lead after ingesting contaminated sediment in the Coeur d'Alene River Basin, in Idaho. Results of studies on waterfowl experimentally fed this sediment were combined with results from field studies conducted in the Basin to relate sediment lead concentration to injury to waterfowl. The first step in the model estimated exposure as the relation of sediment lead concentration to blood lead concentration in mute swans (Cygnus olor), ingesting 22% sediment in a rice diet. That rate corresponded to the 90th percentile of sediment ingestion estimated from analyses of feces of tundra swans (Olor columbianus) in the Basin. Then, with additional laboratory studies on Canada geese (Branta canadensis) and mallards (Anas platyrhynchos) fed the sediment, we developed the general relation of blood lead to injury in waterfowl. Injury was quantified by blood lead concentrations, ALAD ( delta -aminolevulinic acid dehydratase) activity, protoporphyrin concentrations, hemoglobin concentrations, hepatic lead concentrations, and the prevalence of renal nuclear inclusion bodies. Putting the exposure and injury relations together provided a powerful tool for assessing hazards to wildlife in the Basin. The no effect concentration of sediment lead was estimated as 24 mg/kg and the lowest effect level as 530 mg/kg. By combining our exposure equation with data on blood lead concentrations measured in moribund tundra swans in the Basin, we estimated that some mortality would occur at a sediment lead concentration as low as 1800 mg/kg. JF - Ecotoxicology AU - Beyer, W N AU - Audet, D J AU - Heinz, G H AU - Hoffman, D J AU - Day, D AD - U.S. Geological Survey, Patuxent Wildlife Research Center, 12011 Beech Forest Rd., Laurel, MD 20708-4041, USA, Nelson_Beyer@usgs.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 207 EP - 218 VL - 9 IS - 3 SN - 0963-9292, 0963-9292 KW - Anas platyrhynchos KW - Branta canadensis KW - Canada goose KW - Canadian goose KW - Cygnus olor KW - Mallard KW - Mallards KW - Mute swan KW - Olor columbianus KW - Rice diet KW - USA, Idaho KW - USA, Idaho, Coeur d'Alene R. KW - Whistling Swan KW - lead KW - Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts; Pollution Abstracts; Toxicology Abstracts KW - River Basins KW - Heavy metals KW - Pollution effects KW - Lead KW - Sediment Contamination KW - Rivers KW - Waterfowl KW - Mortality KW - Sediment pollution KW - Poisoning KW - River basins KW - Toxicity KW - Sediments KW - Blood levels KW - Blood KW - Bioaccumulation KW - Water Pollution Effects KW - Mortality causes KW - Aquatic birds KW - D 04803:Pollution effects KW - P 2000:FRESHWATER POLLUTION KW - X 24166:Environmental impact KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17041833?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecotoxicology&rft.atitle=Relation+of+Waterfowl+Poisoning+to+Sediment+Lead+Concentrations+in+the+Coeur+d%27Alene+River+Basin&rft.au=Beyer%2C+W+N%3BAudet%2C+D+J%3BHeinz%2C+G+H%3BHoffman%2C+D+J%3BDay%2C+D&rft.aulast=Beyer&rft.aufirst=W&rft.date=2000-06-01&rft.volume=9&rft.issue=3&rft.spage=207&rft.isbn=&rft.btitle=&rft.title=Ecotoxicology&rft.issn=09639292&rft_id=info:doi/10.1023%2FA%3A1008998821913 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Blood; Bioaccumulation; Heavy metals; Pollution effects; River basins; Toxicity; Lead; Aquatic birds; Mortality causes; Rivers; Mortality; Poisoning; Sediments; Blood levels; Waterfowl; River Basins; Water Pollution Effects; Sediment Contamination DO - http://dx.doi.org/10.1023/A:1008998821913 ER - TY - JOUR T1 - Channel stability downstream from a dam assessed using aerial photographs and stream-gage information AN - 17036960; 4741104 AB - The stability of the Neosho River channel downstream from John Redmond Dam, in southeast Kansas, was investigated using multiple-date aerial photographs and stream-gage information. Bankfull channel width was used as the primary indicator variable to assess pre- and post-dam channel change. Five six-mile river reaches and four stream gages were used in the analysis. Results indicated that, aside from some localized channel widening, the overall channel change has been minor with little post-dam change in bankfull channel width. The lack of a pronounced post-dam channel change may be attributed to a substantial reduction in the magnitude of the post-dam annual peak discharges in combination with the resistance to erosion of the bed and bank materials. Also, the channel may have been overwidened by a series of large floods that predated construction of the dam, including one with an estimated 500-year recurrence interval. JF - Journal of the American Water Resources Association AU - Juracek, KE AD - U.S. Geological Survey, 4821 Quail Crest Place, Lawrence, KS 66049-3839, USA, kjuracek@usgs.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 633 EP - 646 VL - 36 IS - 3 SN - 1093-474X, 1093-474X KW - USA, Kansas, John Redmond Dam KW - USA, Kansas, Neosho R. KW - ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Water Resources Abstracts KW - Channeling KW - Alteration of Flow KW - Floods and flooding KW - Man-induced effects KW - Aerial photography KW - Reduction KW - Channel Loss KW - Dams KW - Stream flow rate KW - Flood Peak KW - Channel Erosion KW - Channel Flow KW - Discharge Measurement KW - Rivers KW - Discharge (of Natural waters) KW - Aerial Photography KW - River discharge KW - Streams (in natural channels) KW - Channels KW - Channel flow KW - Flow Measurement (See Also Gauges, Gauging meters) KW - Flooding KW - Stream Gages KW - Stream Discharge KW - Photography KW - Channels (see also Streams) KW - SW 5010:Network design KW - SW 2080:Watershed protection KW - AQ 00003:Monitoring and Analysis of Water and Wastes KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17036960?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Channel+stability+downstream+from+a+dam+assessed+using+aerial+photographs+and+stream-gage+information&rft.au=Juracek%2C+KE&rft.aulast=Juracek&rft.aufirst=KE&rft.date=2000-06-01&rft.volume=36&rft.issue=3&rft.spage=633&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Reduction; Channel flow; Dams; River discharge; Stream flow rate; Man-induced effects; Aerial photography; Discharge (of Natural waters); Floods and flooding; Flow Measurement (See Also Gauges, Gauging meters); Photography; Streams (in natural channels); Channels (see also Streams); Rivers; Aerial Photography; Channeling; Alteration of Flow; Channels; Channel Loss; Stream Gages; Flooding; Flood Peak; Stream Discharge; Discharge Measurement; Channel Flow; Channel Erosion ER - TY - JOUR T1 - Rice pesticide concentrations in the Colusa Basin Drain and the Sacramento River, California, 1990-1993 AN - 16135869; 4820771 AB - The pesticides molinate, thiobencarb, and carbofuran are applied to rice (Oryza sativa L.) fields in the Sacramento Valley, California, each year during April through June. These pesticides are of concern because of their adverse effects on water quality and their potential adverse effects on aquatic life. Therefore, the California Regional Water Quality Control Board (CRWQCB) mandated the holding of irrigation-return water in rice fields to increase pesticide degradation and dissipation before the water is released to the Sacramento River. The CRWQCB also established performance goals to maintain drinking water quality for the city of Sacramento and to protect the habitat for aquatic life. The objectives of this study were to determine the effects of increased irrigation-return water holding times on rice pesticide concentrations and loads in the Colusa Basin Drain and the Sacramento River. Dissolved pesticide concentrations were measured in water samples collected in May through July during 1990-1993 at the Colusa Basin Drain at Road 99E near Knights Landing (Colusa Basin Drain) and at the Sacramento River at Sacramento. Pesticide concentrations and loads at both sites showed a decrease from 1990-1992 and an increase in 1993. This trend cannot be explained by the yearly holding time regulations but can be explained by the amount of yearly emergency releases. The yearly changes in pesticide concentration detected demonstrate that continued monitoring and management of pesticides is necessary to maintain water quality. JF - Journal of Environmental Quality AU - Crepeau, K L AU - Kuivila, K M AD - Water Resources Division, U.S. Geological Survey, 6000 J Street, Placer Hall, Sacramento, CA 95819, USA, kcrepeau@usgs.gov Y1 - 2000/06// PY - 2000 DA - Jun 2000 SP - 926 EP - 935 VL - 29 IS - 3 SN - 0047-2425, 0047-2425 KW - USA, California, Sacramento Valley KW - Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Water Resources Abstracts KW - Agriculture KW - Rice KW - Water sampling KW - Water Pollution Sources KW - Loading KW - Water Sampling KW - Fruit and vegetable crops (Cereals) KW - Freshwater KW - Water quality KW - Water Quality Standards KW - Agricultural Chemicals KW - Sampling KW - Standards (Water quality) KW - Agricultural chemicals KW - Pesticides (see also Bactericides, Weedkillers) KW - Fate of Pollutants KW - Pollution Load KW - Water pollution KW - Fate KW - Water Pollution Effects KW - Pesticides KW - Pollution (Water) KW - Runoff KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16135869?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Rice+pesticide+concentrations+in+the+Colusa+Basin+Drain+and+the+Sacramento+River%2C+California%2C+1990-1993&rft.au=Crepeau%2C+K+L%3BKuivila%2C+K+M&rft.aulast=Crepeau&rft.aufirst=K&rft.date=2000-06-01&rft.volume=29&rft.issue=3&rft.spage=926&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2001-09-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Agriculture; Water sampling; Pesticides; Water quality; Runoff; Fate; Water pollution; Standards (Water quality); Agricultural chemicals; Pesticides (see also Bactericides, Weedkillers); Loading; Fruit and vegetable crops (Cereals); Sampling; Pollution (Water); Water Quality Standards; Rice; Agricultural Chemicals; Water Pollution Sources; Fate of Pollutants; Water Pollution Effects; Water Sampling; Pollution Load; Freshwater ER - TY - JOUR T1 - Temperature effects of hypolimnial-release dams on early life stages of Colorado River Basin big-river fishes AN - 17672039; 4737141 AB - Declines of native big-river fishes of the Colorado River Basin, southwestern United States, have been attributed in part to emplacement of hypolimnial-release dams. Lowered spring-summer tailwater temperatures inhibit spawning and embryonic development, depress swimming performance and growth, and reduce survival of early life stages. We examined effects of three temperatures (10 C, 14 C, 20 C) on aspects of growth, development, and physiology of larval and early juvenile life stages of Xyrauchen texanus (Razorback Sucker), Catostomus latipinnis (Flannelmouth Sucker), Gila cypha (Humpback Chub), and Ptychocheilus lucius (Colorado Squawfish) in the laboratory. Lengths, weights, and specific growth rates of all species were significantly lower at 10 C and 14 C than at 20 C, and time to transformation from larval to juvenile life stage was delayed at colder temperatures. Transfer of fishes from 20 C to 10 C (simulating transport from warm tributaries to cold tailwaters) caused loss of equilibrium in youngest life stages. All these effects increase exposure of larvae to existing sources of mortality. Conservation of the big-river species in hypolimnial-release tailwaters will require thermal modification of dam discharges to lessen detrimental effects of cold water temperatures. Because such action may also benefit nonindigenous biota, recovery of the native fauna may ultimately depend upon implementation of comprehensive (and likely expensive) control measures against nonnative species. JF - Copeia AU - Clarkson, R W AU - Childs, M R AD - United States Bureau of Reclamation, P.O. Box 81169, Phoenix, AZ 85069-1169, USA, rclarkson@ibr8gw80.usbr.gov Y1 - 2000/05/08/ PY - 2000 DA - 2000 May 08 SP - 402 EP - 412 VL - 2000 IS - 2 SN - 0045-8511, 0045-8511 KW - Tailwater temperature KW - Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - Temperature effects KW - Swimming KW - Biological development KW - Developmental stages KW - River basins KW - Spawning KW - Freshwater KW - Freshwater fish KW - River engineering KW - Fish larvae KW - Pisces KW - USA, Colorado R. KW - Dams KW - Ontogeny KW - Embryos KW - Mortality causes KW - Q1 08422:Environmental effects KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17672039?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Copeia&rft.atitle=Temperature+effects+of+hypolimnial-release+dams+on+early+life+stages+of+Colorado+River+Basin+big-river+fishes&rft.au=Clarkson%2C+R+W%3BChilds%2C+M+R&rft.aulast=Clarkson&rft.aufirst=R&rft.date=2000-05-08&rft.volume=2000&rft.issue=2&rft.spage=402&rft.isbn=&rft.btitle=&rft.title=Copeia&rft.issn=00458511&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Temperature effects; Biological development; Swimming; Developmental stages; River basins; Spawning; Freshwater fish; Fish larvae; River engineering; Dams; Ontogeny; Embryos; Mortality causes; Pisces; USA, Colorado R.; Freshwater ER - TY - JOUR T1 - Aquifer response to stream-stage and recharge variations. I. Analytical step-response functions AN - 17604333; 4737426 AB - Laplace transform step-response functions are presented for various homogeneous confined and leaky aquifer types and for anisotropic, homogeneous unconfined aquifers interacting with perennial streams. Flow is one-dimensional, perpendicular to the stream in the confined and leaky aquifers, and two-dimensional in a plane perpendicular to the stream in the water-table aquifers. The stream is assumed to penetrate the full thickness of the aquifer. The aquifers may be semi-infinite or finite in width and may or may not be bounded at the stream by a semipervious streambank. The solutions are presented in a unified manner so that mathematical relations among the various aquifer configurations are clearly demonstrated. The Laplace transform solutions are inverted numerically to obtain the real-time step-response functions for use in the convolution (or superposition) integral. To maintain linearity in the case of unconfined aquifers, fluctuations in the elevation of the water table are assumed to be small relative to the saturated thickness, and vertical flow into or out of the zone above the water table is assumed to occur instantaneously. Effects of hysteresis in the moisture distribution above the water table are therefore neglected. Graphical comparisons of the new solutions are made with known closed-form solutions. JF - Journal of Hydrology (Amsterdam) AU - Moench, A F AU - Barlow, P M AD - US Geological Survey, 10 Bearfoot Road, Northborough, MA 01532, USA, pbarlow@usgs.gov Y1 - 2000/05/08/ PY - 2000 DA - 2000 May 08 SP - 192 EP - 210 VL - 230 IS - 3-4 SN - 0022-1694, 0022-1694 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - Aquifers KW - Recharge KW - Leaky Aquifers KW - Surface water KW - Confined Aquifers KW - River discharge KW - Water table KW - Water Table KW - Groundwater Level KW - Streams KW - Streams (in natural channels) KW - Stream flow KW - Surface-groundwater Relations KW - Perennial Streams KW - Leaky aquifers KW - Ground water KW - Banks KW - River Banks KW - Groundwater Recharge KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General KW - Q2 09171:Dynamics of lakes and rivers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17604333?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology+%28Amsterdam%29&rft.atitle=Aquifer+response+to+stream-stage+and+recharge+variations.+I.+Analytical+step-response+functions&rft.au=Moench%2C+A+F%3BBarlow%2C+P+M&rft.aulast=Moench&rft.aufirst=A&rft.date=2000-05-08&rft.volume=230&rft.issue=3-4&rft.spage=192&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology+%28Amsterdam%29&rft.issn=00221694&rft_id=info:doi/10.1016%2FS0022-1694%2800%2900175-X LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Surface water; River discharge; Ground water; Water table; Stream flow; Recharge; Aquifers; Leaky aquifers; Banks; Streams (in natural channels); Leaky Aquifers; Surface-groundwater Relations; Perennial Streams; Confined Aquifers; River Banks; Groundwater Level; Water Table; Groundwater Recharge; Streams DO - http://dx.doi.org/10.1016/S0022-1694(00)00175-X ER - TY - JOUR T1 - Aquifer response to stream-stage and recharge variations. II. Convolution method and applications AN - 17603857; 4737427 AB - In this second of two papers, analytical step-response functions, developed in the companion paper for several cases of transient hydraulic interaction between a fully penetrating stream and a confined, leaky, or water-table aquifer, are used in the convolution integral to calculate aquifer heads, streambank seepage rates, and bank storage that occur in response to stream-stage fluctuations and basinwide recharge or evapotranspiration. Two computer programs developed on the basis of these stepresponse functions and the convolution integral are applied to the analysis of hydraulic interaction of two alluvial stream-aquifer systems in the northeastern and central United States. These applications demonstrate the utility of the analytical functions and computer programs for estimating aquifer and streambank hydraulic properties, recharge rates, streambank seepage rates, and bank storage. Analysis of the water-table aquifer adjacent to the Blackstone River in Massachusetts suggests that the very shallow depth of water table and associated thin unsaturated zone at the site cause the aquifer to behave like a confined aquifer (negligible specific yield). This finding is consistent with previous studies that have shown that the effective specific yield of an unconfined aquifer approaches zero when the capillary fringe, where sediment pores are saturated by tension, extends to land surface. Under this condition, the aquifer's response is determined by elastic storage only. Estimates of horizontal and vertical hydraulic conductivity, specific yield, specific storage, and recharge for a water-table aquifer adjacent to the Cedar River in eastern Iowa, determined by the use of analytical methods, are in close agreement with those estimated by use of a more complex, multilayer numerical model of the aquifer. Streambank leakance of the semipervious streambank materials also was estimated for the site. The streambank-leakance parameter may be considered to be a general (or lumped) parameter that accounts not only for the resistance of flow at the river-aquifer boundary, but also for the effects of partial penetration of the river and other near-stream flow phenomena not included in the theoretical development of the step-response functions. JF - Journal of Hydrology (Amsterdam) AU - Barlow, P M AU - DeSimone, LA AU - Moench, A F AD - US Geological Survey, 10 Bearfoot Road, Northborough, MA 01532, USA, pbarlow@usgs.gov Y1 - 2000/05/08/ PY - 2000 DA - 2000 May 08 SP - 211 EP - 229 VL - 230 IS - 3-4 SN - 0022-1694, 0022-1694 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - Aquifers KW - Leaky Aquifers KW - Conductance KW - Surface water KW - Confined Aquifers KW - River discharge KW - Water table KW - Stage-discharge Relations KW - Groundwater Level KW - Water Table KW - Streams KW - Permeability Coefficient KW - Streams (in natural channels) KW - Permeability KW - Surface-groundwater Relations KW - Leaky aquifers KW - Ground water KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General KW - Q2 09171:Dynamics of lakes and rivers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17603857?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology+%28Amsterdam%29&rft.atitle=Aquifer+response+to+stream-stage+and+recharge+variations.+II.+Convolution+method+and+applications&rft.au=Barlow%2C+P+M%3BDeSimone%2C+LA%3BMoench%2C+A+F&rft.aulast=Barlow&rft.aufirst=P&rft.date=2000-05-08&rft.volume=230&rft.issue=3-4&rft.spage=211&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology+%28Amsterdam%29&rft.issn=00221694&rft_id=info:doi/10.1016%2FS0022-1694%2800%2900176-1 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Permeability; Surface water; River discharge; Ground water; Water table; Aquifers; Conductance; Leaky aquifers; Streams (in natural channels); Leaky Aquifers; Surface-groundwater Relations; Confined Aquifers; Water Table; Groundwater Level; Stage-discharge Relations; Permeability Coefficient; Streams DO - http://dx.doi.org/10.1016/S0022-1694(00)00176-1 ER - TY - JOUR T1 - Effects of temperature on the elimination of benzocaine and acetylated benzocaine residues from the edible fillet of rainbow trout (Oncorhynchus mykiss). AN - 71760966; 10945105 AB - The effect of temperature (7 degrees C and 16 degrees C) on the extent of accumulation and the elimination of benzocaine (BNZ) and its metabolite, acetylated benzocaine (AcBNZ), in the fillet tissue of rainbow trout was investigated. Residues were measured after bath exposure to an anesthetizing concentration of benzocaine (30 mg/l for 5 min) followed by a maintenance concentration (15 mg/l for 30 min). Immediately after exposure, the BNZ concentration in fillet tissue was approximately 27 micrograms/g at both temperatures; AcBNZ was 0.3 microgram/g at 7 degrees C and 0.6 microgram/g at 16 degrees C. The rates for elimination (alpha and beta) of BNZ and AcBNZ were not significantly different between the two temperatures. Terminal half-lives of elimination for BNZ were 1.62 h at 7 degrees C and 1.63 h at 16 degrees C; half-lives for AcBNZ were 2.36 h at 7 degrees C and 2.77 h at 16 degrees C. JF - Food additives and contaminants AU - Stehly, G R AU - Meinertz, J R AU - Gingerich, W H AD - US Geological Survey, Biological Resources Division, Upper Midwest Environmental Sciences Center, La Crosse, Wisconsin 54603, USA. guy_stehly@usgs.gov Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 387 EP - 392 VL - 17 IS - 5 SN - 0265-203X, 0265-203X KW - Anesthetics, Local KW - 0 KW - Benzocaine KW - U3RSY48JW5 KW - Index Medicus KW - Animals KW - Anesthetics, Local -- metabolism KW - Benzocaine -- metabolism KW - Temperature KW - Drug Residues -- metabolism KW - Oncorhynchus mykiss -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71760966?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Food+additives+and+contaminants&rft.atitle=Effects+of+temperature+on+the+elimination+of+benzocaine+and+acetylated+benzocaine+residues+from+the+edible+fillet+of+rainbow+trout+%28Oncorhynchus+mykiss%29.&rft.au=Stehly%2C+G+R%3BMeinertz%2C+J+R%3BGingerich%2C+W+H&rft.aulast=Stehly&rft.aufirst=G&rft.date=2000-05-01&rft.volume=17&rft.issue=5&rft.spage=387&rft.isbn=&rft.btitle=&rft.title=Food+additives+and+contaminants&rft.issn=0265203X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-08-31 N1 - Date created - 2000-08-31 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - A preliminary look at source-receptor relationships in the Texas-Mexico border area. AN - 71170584; 10842949 AB - Several factors have recently caused visibility impairment at Big Bend National Park, TX, to be of interest. Analyses of historical data collected there have shown that visibility is poorer and fine particle concentrations are higher at Big Bend than at other monitored Class I areas in the western United States. In addition, air masses frequently arrive there after crossing Mexico, where emissions are not well known. During September and October 1996, a field study was undertaken to begin examining the aerosol, visibility, and meteorology on both sides of the border. Results indicate that, during the study, the largest fractions of fine mass and light extinction at Big Bend were due to sulfates and the trace elements most closely associated with sulfate particles were Na and Se. Based on back trajectory modeling and the spatial, temporal, and inter-species relationships in the fine particle concentrations measured during the study, sulfates arrived at the park from both Mexico and the United States. Se was higher in Texas than in Northern Mexico, while V, Pb, Zn, Ni, and Mn were on average much higher in Mexico. JF - Journal of the Air & Waste Management Association (1995) AU - Gebhart, K A AU - Malm, W C AU - Flores, M AD - National Park Service, Colorado State University, Fort Collins, USA. gebhart@cira.colostate.edu Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 858 EP - 868 VL - 50 IS - 5 SN - 1096-2247, 1096-2247 KW - Aerosols KW - 0 KW - Metals, Heavy KW - Sulfates KW - Index Medicus KW - Mexico KW - Sulfates -- analysis KW - Particle Size KW - Texas KW - Time Factors KW - Metals, Heavy -- analysis KW - Environmental Monitoring KW - Air Pollution -- analysis KW - Meteorological Concepts UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71170584?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.atitle=A+preliminary+look+at+source-receptor+relationships+in+the+Texas-Mexico+border+area.&rft.au=Gebhart%2C+K+A%3BMalm%2C+W+C%3BFlores%2C+M&rft.aulast=Gebhart&rft.aufirst=K&rft.date=2000-05-01&rft.volume=50&rft.issue=5&rft.spage=858&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.issn=10962247&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-07-14 N1 - Date created - 2000-07-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Light scattering characteristics of aerosols at ambient and as a function of relative humidity: Part II--A comparison of measured scattering and aerosol concentrations using statistical models. AN - 71161370; 10842934 AB - The eastern United States national parks experience some of the worst visibility conditions in the nation. To study these conditions, the Southeastern Aerosol and Visibility Study (SEAVS) was undertaken to characterize the size-dependent composition, thermodynamic properties, and optical characteristics of the ambient atmospheric particles. It is a cooperative three-year study that is sponsored by the National Park Service and the Electric Power Research Institute and its member utilities. The field portion of the study was carried out from July 15 to August 25, 1995. The study design, instrumental configuration, and estimation of aerosol types from particle measurements is presented in a companion paper. In the companion paper, we compare measurements of scattering at ambient conditions and as functions of relative humidity to theoretical predictions of scattering. In this paper, we make similar comparisons, but using statistical techniques. Statistically derived specific scattering associated with sulfates suggest that a reasonable estimate of sulfate scattering can be arrived at by assuming nominal dry specific scattering and treating the aerosols as an external mixture with ammoniation of sulfate accounted for and by the use of Tang's growth curves to predict water absorption. However, the regressions suggest that the sulfate scattering may be underestimated by about 10%. Regression coefficients on organics, to within the statistical uncertainty of the model, suggest that a reasonable estimate of organic scattering is about 4.0 m2/g. A new analysis technique is presented, which does not rely on comparing measured to model estimates of scattering to evoke an understanding of ambient aerosol growth properties, but rather relies on measurements of scattering as a function of relative humidity to develop actual estimates of f(RH) curves. The estimates of the study average f(RH) curve for sulfates compares favorably with the theoretical f(RH) curve for ammonium bisulfate, which is in turn consistent with the study average sulfate ammoniation corresponding to a molar ratio of NH4/SO4 of approximately one. The f(RH) curve for organics is not significantly different from one, suggesting that organics are weakly to nonhygroscopic. JF - Journal of the Air & Waste Management Association (1995) AU - Malm, W C AU - Day, D E AU - Kreidenweis, S M AD - National Park Service, CIRA, Colorado State University, Fort Collins, USA. malm@cira.colostate.edu Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 701 EP - 709 VL - 50 IS - 5 SN - 1096-2247, 1096-2247 KW - Aerosols KW - 0 KW - Index Medicus KW - Aerosols -- analysis KW - Thermodynamics KW - Optics and Photonics KW - Particle Size KW - Humidity KW - Air Pollution -- analysis KW - Nephelometry and Turbidimetry KW - Models, Statistical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71161370?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.atitle=Light+scattering+characteristics+of+aerosols+at+ambient+and+as+a+function+of+relative+humidity%3A+Part+II--A+comparison+of+measured+scattering+and+aerosol+concentrations+using+statistical+models.&rft.au=Malm%2C+W+C%3BDay%2C+D+E%3BKreidenweis%2C+S+M&rft.aulast=Malm&rft.aufirst=W&rft.date=2000-05-01&rft.volume=50&rft.issue=5&rft.spage=701&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.issn=10962247&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-07-14 N1 - Date created - 2000-07-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Geology and gold mineralization of the Nolan area in the Brooks Range, Alaska AN - 52265197; 2001-012468 JF - BLM-Alaska Open File Report AU - Eden, Karsten Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 87 PB - Bureau of Land Management, Alaska State Office, Anchorage, AK KW - Scale: 1:21,000 KW - Type: geologic map KW - Type: structural map KW - Type: site location map KW - United States KW - mineral deposits, genesis KW - Hammond Subterrane KW - geologic maps KW - metasomatism KW - Nolan Alaska KW - Coldfoot Subterrane KW - metamorphic rocks KW - metasedimentary rocks KW - mineralization KW - gold ores KW - Arctic Alaska Terrane KW - hydrothermal alteration KW - Hammond Alaska KW - tectonics KW - chemical composition KW - structural maps KW - faults KW - Paleozoic KW - site location maps KW - terranes KW - veins KW - quartz veins KW - placers KW - Devonian KW - maps KW - Northern Alaska KW - metal ores KW - Alaska KW - Brooks Range KW - 27A:Economic geology, geology of ore deposits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52265197?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Eden%2C+Karsten&rft.aulast=Eden&rft.aufirst=Karsten&rft.date=2000-05-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Geology+and+gold+mineralization+of+the+Nolan+area+in+the+Brooks+Range%2C+Alaska&rft.title=Geology+and+gold+mineralization+of+the+Nolan+area+in+the+Brooks+Range%2C+Alaska&rft.issn=&rft_id=info:doi/ L2 - http://www.blm.gov/ak/st/en/info/gen_pubs/ofr.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 63 N1 - Availability - U. S. Department of the Interior, Bureau of Land Management, Anchorage, AK, United States N1 - PubXState - AK N1 - Document feature - illus. incl. 3 tables, sects. N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - #04510 N1 - SubjectsTermNotLitGenreText - Alaska; Arctic Alaska Terrane; Brooks Range; chemical composition; Coldfoot Subterrane; Devonian; faults; geologic maps; gold ores; Hammond Alaska; Hammond Subterrane; hydrothermal alteration; maps; metal ores; metamorphic rocks; metasedimentary rocks; metasomatism; mineral deposits, genesis; mineralization; Nolan Alaska; Northern Alaska; Paleozoic; placers; quartz veins; site location maps; structural maps; tectonics; terranes; United States; veins ER - TY - JOUR T1 - Compendium of the mineral assessment of Ahtna, Inc. selections in the Wrangell-St. Elias National Park and Preserve, Alaska AN - 52187183; 2001-067391 JF - BLM - Alaska Technical Report AU - Meyer, Mark P AU - VandeWeg, Darrel A AU - Shepherd, Andrew D Y1 - 2000/05// PY - 2000 DA - May 2000 EP - 1 disc PB - U. S. Department of the Interior, Bureau of Land Management, Alaska State Office, Anchorage, AK KW - United States KW - mineral exploration KW - resources KW - mines KW - digital data KW - Wrangell-Saint Elias National Park and Preserve KW - Wrangell Mountains KW - host rocks KW - iron ores KW - production KW - Southern Alaska KW - spatial distribution KW - metamorphic rocks KW - metal ores KW - polymetallic ores KW - gold ores KW - copper ores KW - Alaska KW - skarn KW - metasomatic rocks KW - 27A:Economic geology, geology of ore deposits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52187183?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Meyer%2C+Mark+P%3BVandeWeg%2C+Darrel+A%3BShepherd%2C+Andrew+D&rft.aulast=Meyer&rft.aufirst=Mark&rft.date=2000-05-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Compendium+of+the+mineral+assessment+of+Ahtna%2C+Inc.+selections+in+the+Wrangell-St.+Elias+National+Park+and+Preserve%2C+Alaska&rft.title=Compendium+of+the+mineral+assessment+of+Ahtna%2C+Inc.+selections+in+the+Wrangell-St.+Elias+National+Park+and+Preserve%2C+Alaska&rft.issn=&rft_id=info:doi/ L2 - http://www.blm.gov/ak/st/en/info/gen_pubs/tr.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - AK N1 - Document feature - illus. incl. 8 tables, sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - #04969 N1 - SubjectsTermNotLitGenreText - Alaska; copper ores; digital data; gold ores; host rocks; iron ores; metal ores; metamorphic rocks; metasomatic rocks; mineral exploration; mines; polymetallic ores; production; resources; skarn; Southern Alaska; spatial distribution; United States; Wrangell Mountains; Wrangell-Saint Elias National Park and Preserve ER - TY - JOUR T1 - Mineral assessment of Ahtna, Inc. selections in the Wrangell-St. Elias National Park and Preserve, Alaska AN - 51885427; 2004-016992 JF - BLM - Alaska Technical Report AU - Meyer, Mark P AU - VandeWeg, Darrel A AU - Shepherd, Andrew D Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 299 PB - U. S. Department of the Interior, Bureau of Land Management, Alaska State Office, Anchorage, AK KW - United States KW - mineral exploration KW - North America KW - Wrangell-Saint Elias National Park and Preserve KW - molybdenum ores KW - Wrangell Mountains KW - host rocks KW - national parks KW - veins KW - public lands KW - mineral resources KW - Southern Alaska KW - potential deposits KW - corundum deposits KW - metal ores KW - polymetallic ores KW - gold ores KW - copper ores KW - Saint Elias Mountains KW - Alaska KW - 26A:Economic geology, general, deposits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51885427?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Meyer%2C+Mark+P%3BVandeWeg%2C+Darrel+A%3BShepherd%2C+Andrew+D&rft.aulast=Meyer&rft.aufirst=Mark&rft.date=2000-05-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Mineral+assessment+of+Ahtna%2C+Inc.+selections+in+the+Wrangell-St.+Elias+National+Park+and+Preserve%2C+Alaska&rft.title=Mineral+assessment+of+Ahtna%2C+Inc.+selections+in+the+Wrangell-St.+Elias+National+Park+and+Preserve%2C+Alaska&rft.issn=&rft_id=info:doi/ L2 - http://www.blm.gov/ak/st/en/info/gen_pubs/tr.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - AK N1 - Document feature - illus. incl. sketch maps N1 - SuppNotes - Final report N1 - Last updated - 2012-06-07 N1 - CODEN - #04969 N1 - SubjectsTermNotLitGenreText - Alaska; copper ores; corundum deposits; gold ores; host rocks; metal ores; mineral exploration; mineral resources; molybdenum ores; national parks; North America; polymetallic ores; potential deposits; public lands; Saint Elias Mountains; Southern Alaska; United States; veins; Wrangell Mountains; Wrangell-Saint Elias National Park and Preserve ER - TY - JOUR T1 - FOODS OF ARCTIC FOXES (ALOPEX LAGOPUS) DURING WINTER AND SPRING IN WESTERN ALASKA AN - 19337037; 8696684 AB - During 1986-1991, carcasses of 619 arctic foxes (Alopex lagopus) collected from local trappers and at biological field camps on the Yukon-Kuskokwim Delta in western Alaska from November through May were analyzed to determine gastrointestinal contents, age, sex, and body condition. Prey in declining order of importance were small mammals (95% tundra voles, Microtus oeconomus), birds, marine mammals, and fishes. Foxes with small mammal remains in their stomachs were captured farther from the Bering Sea coast ( = 5.2 km) than those without small-mammal remains (2.8 km); foxes consuming remains of marine mammals were closer to the coast (1.9 km) than others (4.9 km). Although eggshells had a poor likelihood of occurrence in stomachs, they were found in all months and years. In 1986 and 1987, foxes consumed fewer small mammals than in other years. Mean ages of foxes captured in 1986 (3.7 years) and 1987 (3.2) were greater than in all other years (1.5). Capture of adults was more common as winter progressed. Indexes of subcutaneous fat decreased annually in April-May and were highest in 1991, when occurrence of carrion of marine mammals was highest. JF - Journal of Mammalogy AU - Anthony, RMichael AU - Barten, Neil L AU - Seiser, Pamela E AD - Alaska Biological Science Center, United States Geological Survey, 1011 East Tudor Road, Anchorage, AK 99503, mike_anthony@usgs.gov Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 820 EP - 828 PB - Allen Press, Inc., 810 East Tenth St. VL - 81 IS - 3 SN - 0022-2372, 0022-2372 KW - Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Animal Behavior Abstracts; Ecology Abstracts KW - Alopex lagopus KW - arctic foxes KW - food habits KW - stomach contents KW - Alaska KW - Diets KW - Marine KW - Food organisms KW - Age KW - Body conditions KW - Food KW - Cyclic AMP KW - Winter KW - PN, Arctic KW - Egg shells KW - IN, Bering Sea KW - Stomach content KW - Carcasses KW - Feeding behaviour KW - Tundra KW - Marine mammals KW - Microtus oeconomus KW - Stomach KW - Prey KW - INE, USA, Alaska, Yukon-Kuskokwim Delta KW - Coasts KW - O 1070:Ecology/Community Studies KW - Y 25150:General/Miscellaneous KW - D 04040:Ecosystem and Ecology Studies KW - Q1 08425:Nutrition and feeding habits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19337037?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Mammalogy&rft.atitle=FOODS+OF+ARCTIC+FOXES+%28ALOPEX+LAGOPUS%29+DURING+WINTER+AND+SPRING+IN+WESTERN+ALASKA&rft.au=Anthony%2C+RMichael%3BBarten%2C+Neil+L%3BSeiser%2C+Pamela+E&rft.aulast=Anthony&rft.aufirst=RMichael&rft.date=2000-05-01&rft.volume=81&rft.issue=3&rft.spage=820&rft.isbn=&rft.btitle=&rft.title=Journal+of+Mammalogy&rft.issn=00222372&rft_id=info:doi/10.1644%2F1545-1542%282000%290812.3.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-12-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Diets; Stomach content; Food organisms; Carcasses; Body conditions; Feeding behaviour; Marine mammals; Winter; Egg shells; Age; Food; Tundra; Cyclic AMP; Prey; Stomach; Coasts; Alopex lagopus; Microtus oeconomus; PN, Arctic; IN, Bering Sea; INE, USA, Alaska, Yukon-Kuskokwim Delta; Marine DO - http://dx.doi.org/10.1644/1545-1542(2000)081<0820:FOAFAL>2.3.CO;2 ER - TY - JOUR T1 - COMPARISON OF METHODS FOR DETERMINING DOMINANCE RANK IN MALE AND FEMALE PRAIRIE VOLES (MICROTUS OCHROGASTER) AN - 19336553; 8696677 AB - Dominance ranks in male and female prairie voles (Microtus ochrogaster) were determined from 6 measurements that mimicked environmental situations that might be encountered by prairie voles in communal groups, including agonistic interactions resulting from competition for food and water and encounters in burrows. Male and female groups of 6 individuals each were tested against one another in pairwise encounters (i.e., dyads) for 5 of the measurements and together as a group in a 6th measurement. Two types of response variables, aggressive behaviors and possession time of a limiting resource, were collected during trials, and those data were used to determine cardinal ranks and principal component ranks for all animals within each group. Cardinal ranks and principal component ranks seldom yielded similar rankings for each animal across measurements. However, dominance measurements that were conducted in similar environmental contexts, regardless of the response variable recorded, ranked animals similarly. Our results suggest that individual dominance measurements assessed situation- or resource-specific responses. Our study demonstrates problems inherent in determining dominance rankings of individuals within groups, including choosing measurements, response variables, and statistical techniques. Researchers should avoid using a single measurement to represent social dominance until they have first demonstrated that a dominance relationship between 2 individuals has been learned (i.e., subsequent interactions show a reduced response rather than an escalation), that this relationship is relatively constant through time, and that the relationship is not context dependent. Such assessments of dominance status between all dyads then can be used to generate dominance rankings within social groups. JF - Journal of Mammalogy AU - Lanctot, Richard B AU - Best, Louis B AD - Department of Animal Ecology, Iowa State University, Ames, IA 50011 (RBL, LBB), richard_lanctot@usgs.gov Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 734 EP - 745 PB - Allen Press, Inc., 810 East Tenth St. VL - 81 IS - 3 SN - 0022-2372, 0022-2372 KW - Animal Behavior Abstracts; Ecology Abstracts KW - Microtus ochrogaster KW - prairie vole KW - aggression KW - competition KW - dominance KW - Data processing KW - Food KW - Statistical analysis KW - Microtus KW - Aggressive behavior KW - Competition KW - Dominance KW - Burrows KW - Y 25020:Territory, Reproduction and Sociality KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19336553?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Mammalogy&rft.atitle=COMPARISON+OF+METHODS+FOR+DETERMINING+DOMINANCE+RANK+IN+MALE+AND+FEMALE+PRAIRIE+VOLES+%28MICROTUS+OCHROGASTER%29&rft.au=Lanctot%2C+Richard+B%3BBest%2C+Louis+B&rft.aulast=Lanctot&rft.aufirst=Richard&rft.date=2000-05-01&rft.volume=81&rft.issue=3&rft.spage=734&rft.isbn=&rft.btitle=&rft.title=Journal+of+Mammalogy&rft.issn=00222372&rft_id=info:doi/10.1644%2F1545-1542%282000%290812.3.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-12-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Data processing; Food; Statistical analysis; Aggressive behavior; Competition; Burrows; Dominance; Microtus; Microtus ochrogaster DO - http://dx.doi.org/10.1644/1545-1542(2000)081<0734:COMFDD>2.3.CO;2 ER - TY - JOUR T1 - EFFECT OF ELEVATION ON DISTRIBUTION OF FEMALE BATS IN THE BLACK HILLS, SOUTH DAKOTA AN - 19335084; 8696675 AB - Presumably, reproductive female bats are more constrained by thermoregulatory and energy needs than are males and nonreproductive females. Constraints imposed on reproductive females may limit their geographic distribution relative to other bats. Such constraints likely increase with latitude and elevation. Males of 11 bat species that inhabit the Black Hills were captured more frequently than females, and reproductive females typically were encountered at low-elevational sites. To investigate the relationship between female distribution and elevation, we fitted a logistic regression model to evaluate the probability of reproductive-female capture as a function of elevation. Mist-net data from 1,197 captures of 7 species revealed that 75% of all captures were males. We found a significant inverse relationship between elevation and relative abundance of reproductive females. Relative abundance of reproductive females decreased as elevation increased. Reproductive females may be constrained from roosting and foraging in high-elevational habitats that impose thermoregulatory costs and decrease foraging efficiency. Failure to account for sex differences in distributional patterns along elevational gradients may significantly bias estimates of population size. JF - Journal of Mammalogy AU - Cryan, Paul M AU - Bogan, Michael A AU - Altenbach, JScott AD - United States Geological Survey, Midcontinent Ecological Science Center, Arid Lands Field Station, Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131 (PMC, MAB), myotis43@unm.edu Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 719 EP - 725 PB - Allen Press, Inc., 810 East Tenth St. VL - 81 IS - 3 SN - 0022-2372, 0022-2372 KW - Animal Behavior Abstracts; Ecology Abstracts KW - Black Hills KW - South Dakota KW - bats KW - distribution KW - elevation KW - females KW - Geographical distribution KW - Data processing KW - Energy KW - Abundance KW - Regression analysis KW - Habitat KW - Sex differences KW - Models KW - Y 25040:Behavioral Ecology KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19335084?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Mammalogy&rft.atitle=EFFECT+OF+ELEVATION+ON+DISTRIBUTION+OF+FEMALE+BATS+IN+THE+BLACK+HILLS%2C+SOUTH+DAKOTA&rft.au=Cryan%2C+Paul+M%3BBogan%2C+Michael+A%3BAltenbach%2C+JScott&rft.aulast=Cryan&rft.aufirst=Paul&rft.date=2000-05-01&rft.volume=81&rft.issue=3&rft.spage=719&rft.isbn=&rft.btitle=&rft.title=Journal+of+Mammalogy&rft.issn=00222372&rft_id=info:doi/10.1644%2F1545-1542%282000%290812.3.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-12-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Geographical distribution; Data processing; Energy; Abundance; Regression analysis; Sex differences; Habitat; Models DO - http://dx.doi.org/10.1644/1545-1542(2000)081<0719:EOEODO>2.3.CO;2 ER - TY - JOUR T1 - A Late Holocene Paleoecological Record from Torrey Pines State Reserve, California AN - 18016804; 4710322 AB - Paleoenvironments of the Torrey Pines State Reserve were reconstructed from a 3600-yr core from Los Penasquitos Lagoon using fossil pollen, spores, charcoal, chemical stratigraphy, particle size, and magnetic susceptibility. Late Holocene sediments were radiocarbon dated, while the historical sediments were dated using sediment chemistry, fossil pollen, and historical records. At 3600 yr B.P., the estuary was a brackish-water lagoon. By 2800 yr B.P., Poaceae (grass) pollen increased to high levels, suggesting that the rising level of the core site led to its colonization by Spartina foliosa (cord-grass), the lowest-elevation plant type within regional estuaries. An increase in pollen and spores of moisture-dependent species suggests a climate with more available moisture after 2600 yr B.P. This change is similar to that found 280 km to the north at 3250 yr B.P., implying that regional climate changes were time-transgressive from north to south. Increased postsettlement sediment input resulted from nineteenth-century land disturbances caused by grazing and fire. Sedimentation rates increased further in the twentieth century due to closure of the estuarine mouth. The endemic Pinus torreyana (Torrey pine) was present at the site throughout this 3600-yr interval but was less numerous prior to 2100 yr B.P. This history may have contributed to the low genetic diversity of this species. JF - Quaternary Research AU - Cole, K L AU - Wahl, E AD - USGS Forest and Rangeland Ecosystem Science Center, Northern Arizona University, Building 24, Flagstaff, 86011-5614, Arizona Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 341 EP - 351 PB - Academic Press VL - 53 IS - 3 SN - 0033-5894, 0033-5894 KW - Holocene KW - USA, California KW - ASFA 1: Biological Sciences & Living Resources; ASFA 2: Ocean Technology Policy & Non-Living Resources; Ecology Abstracts KW - Sediment chemistry KW - Ecological zonation KW - Palaeoecology KW - Estuaries KW - Brackish KW - Man-induced effects KW - Paleoecology KW - Palaeoclimate KW - Environmental factors KW - Vegetation cover KW - Ecological succession KW - Coastal morphology KW - Palynology KW - Coastal lagoons KW - USA, California, Torrey Pines State Reserve KW - Radiocarbon dating KW - Spores KW - Plant populations KW - Sedimentation KW - Fossil pollen KW - Sanctuaries KW - Q2 09273:Palaeontology KW - D 04680:Paleoecology KW - Q1 08187:Palaeontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18016804?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quaternary+Research&rft.atitle=A+Late+Holocene+Paleoecological+Record+from+Torrey+Pines+State+Reserve%2C+California&rft.au=Cole%2C+K+L%3BWahl%2C+E&rft.aulast=Cole&rft.aufirst=K&rft.date=2000-05-01&rft.volume=53&rft.issue=3&rft.spage=341&rft.isbn=&rft.btitle=&rft.title=Quaternary+Research&rft.issn=00335894&rft_id=info:doi/10.1006%2Fqres.1999.2121 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment chemistry; Ecological zonation; Palaeoecology; Estuaries; Man-induced effects; Palaeoclimate; Environmental factors; Holocene; Vegetation cover; Ecological succession; Coastal morphology; Palynology; Coastal lagoons; Sedimentation; Plant populations; Spores; Radiocarbon dating; Sanctuaries; Fossil pollen; Paleoecology; USA, California, Torrey Pines State Reserve; Brackish DO - http://dx.doi.org/10.1006/qres.1999.2121 ER - TY - JOUR T1 - Biomes of western North America at 18,000, 6000 and 0 super(14)C yr BP reconstructed from pollen and packrat midden data AN - 17757727; 4821177 AB - A new compilation of pollen and packrat midden data from western North America provides a refined reconstruction of the composition and distribution of biomes in western North America for today and for 6000 and 18,000 radiocarbon years before present ( super(14)C yr BP). Modern biomes in western North America are adequately portrayed by pollen assemblages from lakes and bogs. Forest biomes in western North America share many taxa in their pollen spectra and it can be difficult to discriminate among these biomes. Plant macrofossils from packrat middens provide reliable identification of modern biomes from arid and semiarid regions, and this may also be true in similar environments in other parts of the world. However, a weighting factor for trees and shrubs must be used to reliably reconstruct modern biomes from plant macrofossils. A new biome, open conifer woodland, which includes eurythermic conifers and steppe plants, was defined to categorize much of the current and past vegetation of the semiarid interior of western North America. At 6000 super(14)C yr BP, the forest biomes of the coastal Pacific North-west and the desert biomes of the South-west were in near-modern positions. Biomes in the interior Pacific North-west differed from those of today in that taiga prevailed in modern cool/cold mixed forests. Steppe was present in areas occupied today by open conifer woodland in the northern Great Basin, while in the central and southern Rocky Mountains forests grew where steppe grows today. During the mid-Holocene, cool conifer forests were expanded in the Rocky Mountains (relative to today) but contracted in the Sierra Nevada. These differences from the forests of today imply different climatic histories in these two regions between 6000 super(14)C yr BP and today. At 18,000 super(14)C yr BP, deserts were absent from the South-west and the coverage of open conifer woodland was greatly expanded relative to today. Steppe and tundra were present in much of the region now covered by forests in the Pacific North-west. JF - Journal of Biogeography AU - Thompson, R S AU - Anderson, KH AD - U.S. Geological Survey, Earth Surface Processes Team, Box 25046, MS980, Denver, CO 80225, USA, rthompson@usgs.gov Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 555 EP - 584 VL - 27 IS - 3 SN - 0305-0270, 0305-0270 KW - North America KW - Ecology Abstracts KW - Vegetation patterns KW - Forests KW - Paleoecology KW - Pollen KW - D 04680:Paleoecology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17757727?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Biogeography&rft.atitle=Biomes+of+western+North+America+at+18%2C000%2C+6000+and+0+super%2814%29C+yr+BP+reconstructed+from+pollen+and+packrat+midden+data&rft.au=Thompson%2C+R+S%3BAnderson%2C+KH&rft.aulast=Thompson&rft.aufirst=R&rft.date=2000-05-01&rft.volume=27&rft.issue=3&rft.spage=555&rft.isbn=&rft.btitle=&rft.title=Journal+of+Biogeography&rft.issn=03050270&rft_id=info:doi/10.1046%2Fj.1365-2699.2000.00427.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pollen; Paleoecology; Vegetation patterns; Forests DO - http://dx.doi.org/10.1046/j.1365-2699.2000.00427.x ER - TY - JOUR T1 - Periphyton Dynamics in a Subalpine Mountain Stream during Winter AN - 17601331; 4731678 AB - We conducted two experiments to determine the activity of and factors which control periphyton during winter in Stevensville Brook, Vermont. The first experiment during winter/spring 1994 examined the effect of a 300 to 450% difference in light and doubling of flow (low and high light, slow and fast flow) on periphyton chlorophyll a (chl a) and ash-free dry mass (AFDM) from stream rocks and artificial substrata. A second experiment was performed to determine whether periphyton was nitrogen or phosphorus limited. In addition, stream water was sampled during fall/winter 1994/95 for nitrate (NO sub(3)), ammonia (NH sub(4)), soluble reactive phosphorus (SRP), and total phosphorus (TP) to determine the availability of nutrients in Stevensville Brook. Increases of up to 250% for AFDM and 600% for chl a during the first study indicated robust activity throughout the winter despite low temperatures and light. Flow had a negative effect and sampling date was found to have a significant effect on periphyton biomass (chl a and AFDM) while light was found to influence increases in AFDM on clay tiles only. Water analyses showed that SRP was less than 0.001 mg L super(-1), NH sub(4) and TP were low and often undetectable, and NO sub(3) remained at about 0.20 mg L super(-1). Results from the nutrient enrichment experiment showed a significant response of chl a to P but not N and no response of AFDM to enrichment with either N or P. In Stevensville Brook during winter, the algal community, as represented by the chl a concentration, is predominantly controlled by phosphorus concentrations and is influenced to a lesser extent by flow; the periphyton community as a whole, represented by AFDM, is controlled mostly by stream flow and light. JF - Arctic, Antarctic, and Alpine Research AU - Gustina, G W AU - Hoffmann, J P AD - Colorado State University, USGS-BRD, 337 Aylesworth Hall NW, Fort Collins, CO 80523, USA, ggustina@picea.cnr.colostate.edu Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 127 EP - 134 VL - 32 IS - 2 SN - 1523-0430, 1523-0430 KW - USA, Vermont KW - subalpine mountain stream KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Rivers KW - Phytobenthos KW - Nutrient availability KW - Phosphorus KW - Limiting factors KW - Nutrient dynamics KW - Population dynamics KW - Nutrient cycles KW - Environmental factors KW - Light effects KW - Winter KW - Stream flow rate KW - USA, Vermont, Stevensville Brook KW - Periphyton KW - Algae KW - Q1 08462:Benthos KW - Q1 08221:General KW - D 04310:Freshwater KW - Q1 08422:Environmental effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17601331?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Arctic%2C+Antarctic%2C+and+Alpine+Research&rft.atitle=Periphyton+Dynamics+in+a+Subalpine+Mountain+Stream+during+Winter&rft.au=Gustina%2C+G+W%3BHoffmann%2C+J+P&rft.aulast=Gustina&rft.aufirst=G&rft.date=2000-05-01&rft.volume=32&rft.issue=2&rft.spage=127&rft.isbn=&rft.btitle=&rft.title=Arctic%2C+Antarctic%2C+and+Alpine+Research&rft.issn=15230430&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Rivers; Phytobenthos; Stream flow rate; Phosphorus; Periphyton; Limiting factors; Population dynamics; Environmental factors; Nutrient cycles; Winter; Light effects; Nutrient availability; Nutrient dynamics; Algae; USA, Vermont, Stevensville Brook ER - TY - JOUR T1 - Selected trace elements and organochlorines: Some findings in blood and eggs of nesting common eiders (Somateria mollissima) from Finland AN - 17600049; 4715424 AB - In 1997 and 1998, we collected blood samples from nesting adult female common eiders (Somateria mollissima) at five locations in the Baltic Sea near coastal Finland and analyzed them for lead, selenium, mercury, and arsenic. Eggs were collected from three locations in 1997 for analysis of selenium, mercury, arsenic, and 17 organochlorines (OCs). Mean blood lead concentrations varied by location and year and ranged from 0.02 ppm (residues in blood on wet weight basis) to 0.12 ppm, although one bird had 14.2 ppm lead in its blood. Lead residues in the blood of eiders were positively correlated with the stage of incubation, and lead inhibited the activity of the enzyme delta-aminolevulinic acid dehydratase (ALAD) in the blood. Selenium concentrations in eider blood varied by location, with means of 1.26 to 2.86 ppm. Median residues of selenium and mercury in eider eggs were 0.55 and 0.10 ppm (residues in eggs on fresh weight basis), respectively, and concentrations of both selenium and mercury in eggs were correlated with those in blood. Median concentrations of p,p'-dichlorodiphenyldichloroethylene in eggs ranged from 13.1 to 29.6 ppb, but all other OCs were below detection limits. The residues of contaminants that we found in eggs were below concentrations generally considered to affect avian reproduction. The negative correlation of ALAD activity with blood lead concentrations is evidence of an adverse physiological effect of lead exposure in this population. JF - Environmental Toxicology and Chemistry AU - Franson, J C AU - Hollmen, T AU - Poppenga, R H AU - Hario, M AU - Kilpi, M AU - Smith, M R AD - U.S. Geological Survey, National Wildlife Health Center, 6006 Schroeder Road, Madison, WI 53711, USA, chris_franson@usgs.gov Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 1340 EP - 1347 VL - 19 IS - 5 SN - 0730-7268, 0730-7268 KW - Baltic Sea KW - Common eider KW - Finland KW - Somateria mollissima KW - dichlorodiphenyldichloroethylene KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Toxicology Abstracts; Water Resources Abstracts KW - Organochlorine compounds KW - Incubation KW - Pollution effects KW - Eggs KW - Bird eggs KW - Lead KW - Trace elements KW - Selenium KW - Marine environment KW - Correlation Analysis KW - Population Exposure KW - Arsenic KW - Biological Sampling KW - Trace Elements KW - Inhibition KW - Exposure tolerance KW - Blood KW - Bioaccumulation KW - Detection Limits KW - Mercury KW - Organic Compounds KW - Birds KW - Aquatic birds KW - X 24240:Miscellaneous KW - P 1000:MARINE POLLUTION KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17600049?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Selected+trace+elements+and+organochlorines%3A+Some+findings+in+blood+and+eggs+of+nesting+common+eiders+%28Somateria+mollissima%29+from+Finland&rft.au=Franson%2C+J+C%3BHollmen%2C+T%3BPoppenga%2C+R+H%3BHario%2C+M%3BKilpi%2C+M%3BSmith%2C+M+R&rft.aulast=Franson&rft.aufirst=J&rft.date=2000-05-01&rft.volume=19&rft.issue=5&rft.spage=1340&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Bioaccumulation; Pollution effects; Lead; Aquatic birds; Bird eggs; Exposure tolerance; Selenium; Blood; Organochlorine compounds; Mercury; Eggs; Trace elements; Arsenic; Marine environment; Detection Limits; Biological Sampling; Correlation Analysis; Incubation; Trace Elements; Birds; Organic Compounds; Inhibition; Population Exposure ER - TY - JOUR T1 - Evaluation of planar halogenated and polycyclic aromatic hydrocarbons in estuarine sediments using ethoxyresorufin-o-deethylase induction of H4IIE cells AN - 17598271; 4715425 AB - Polycyclic aromatic hydrocarbons (PAHs) and planar halogenated hydrocarbons (PHHs), including polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs), and biphenyls (PCBs) were determined in fractionated sediment extracts from the Hudson-Raritan estuary and Newark Bay, New Jersey, USA, as part of a comprehensive risk assessment. Contributions of PCDDs/PCDFs, PCBs, and PAHs to the total toxic equivalents (TEQs) were measured using an H4IIE bioassay and calculated from instrumentally determined concentrations using international toxic equivalency factors. The H4IIE TEQs of whole and fractionated extracts were compared to calculated TEQs to investigate the applicability of the bioassay approach for evaluating 7-ethoxyresorufin-O-deethylease induction by PHHs and PAHs present together in complex mixtures. Although 2,3,7,8-tetrachlorodibenzo-p-dioxin contributed from 41 to 79% of the calculated TEQs from PCDDs/PCDFs and planar PCBs in all sediments sampled, the PAH-containing fractions accounted for >80% of the total TEQs determined either instrumentally or by bioassay. Calculated TEQs from PAHs, based on reported toxic equivalency factors for only seven PAHs, were severalfold greater than the bioassay-derived TEQs of PAH-only fractions of the sediment extracts. Significant correlations were observed between bioassay and instrumentally determined toxic equivalents in the more purified fractions but not in fractions only purified by size-exclusion or argentate chromatographies alone. JF - Environmental Toxicology and Chemistry AU - Gale, R W AU - Long, E R AU - Schwartz, T R AU - Tillitt, DE AD - U.S. Geological Survey, Biological Resources Division, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, MO 65201, USA, robert_gale@usgs.gov Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 1348 EP - 1359 VL - 19 IS - 5 SN - 0730-7268, 0730-7268 KW - USA, New Jersey, Hudson-Raritan Estuary KW - USA, New Jersey, Newark Bay KW - halogenated hydrocarbons KW - ASFA 3: Aquatic Pollution & Environmental Quality; Toxicology Abstracts; Pollution Abstracts; Water Resources Abstracts KW - Risk assessment KW - Chemical Analysis KW - Freshwater KW - Sediment analysis KW - Bioassay KW - Assessments KW - PCDF KW - Sediment Contamination KW - Aromatic hydrocarbons KW - PCB compounds KW - PCDD KW - PCB KW - Marine KW - Sediment pollution KW - Polycyclic aromatic hydrocarbons KW - Halogenated hydrocarbons KW - 7-ethoxyresorufin O-deethylase KW - Polychlorinated dibenzo(p)dioxins KW - Hydrocarbons KW - Fate of Pollutants KW - Estuaries KW - Brackish KW - ANW, USA, New Jersey, Raritan Bay KW - Polychlorinated dibenzofurans KW - TCDD KW - Pollutant identification KW - Aromatic Compounds KW - Risk KW - Bioassays KW - Marine pollution KW - Analytical techniques KW - Chemical properties KW - X 24190:Polycyclic hydrocarbons KW - SW 3020:Sources and fate of pollution KW - P 1000:MARINE POLLUTION KW - Q5 08502:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17598271?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Evaluation+of+planar+halogenated+and+polycyclic+aromatic+hydrocarbons+in+estuarine+sediments+using+ethoxyresorufin-o-deethylase+induction+of+H4IIE+cells&rft.au=Gale%2C+R+W%3BLong%2C+E+R%3BSchwartz%2C+T+R%3BTillitt%2C+DE&rft.aulast=Gale&rft.aufirst=R&rft.date=2000-05-01&rft.volume=19&rft.issue=5&rft.spage=1348&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Analytical techniques; Aromatic hydrocarbons; Chemical properties; Pollutant identification; Sediment analysis; Risk assessment; Polycyclic aromatic hydrocarbons; Polychlorinated dibenzo(p)dioxins; 7-ethoxyresorufin O-deethylase; Hydrocarbons; Estuaries; TCDD; Polychlorinated dibenzofurans; PCB; Bioassays; Halogenated hydrocarbons; Marine pollution; PCDF; PCB compounds; PCDD; Aromatic Compounds; Risk; Assessments; Fate of Pollutants; Chemical Analysis; Sediment Contamination; Bioassay; ANW, USA, New Jersey, Raritan Bay; Marine; Brackish; Freshwater ER - TY - JOUR T1 - Apparent inferiority of first-time breeders in the kittiwake: the role of heterogeneity among age classes AN - 17555337; 4737199 AB - 1. Many studies have provided evidence that first-time breeders have a lower survival, a lower probability of success, or of breeding, in the following year. Hypotheses based on reproductive costs have often been proposed to explain this. However, because of the intrinsic relationship between age and experience, the apparent inferiority of first-time breeders at the population level may result from selection, and experience may not influence performance within each individual. In this paper we address the question of phenotypic correlations between fitness components. This addresses differences in individual quality, a prerequisite for a selection process to occur. We also test the hypothesis of an influence of experience on these components while taking age and reproductive success into account: two factors likely to play a key role in a selection process. 2. Using data from a long-term study on the kittiwake, we found that first-time breeders have a lower probability of success, a lower survival and a lower probability of breeding in the next year than experienced breeders. However, neither experienced nor inexperienced breeders have a lower survival or a lower probability of breeding in the following year than birds that skipped a breeding opportunity. This suggests heterogeneity in quality among individuals. 3. Failed birds have a lower survival and a lower probability of breeding in the following year regardless of experience. This can be interpreted in the light of the selection hypothesis. The inferiority of inexperienced breeders may be linked to a higher proportion of lower-quality individuals in younger age classes. When age and breeding success are controlled for, there is no evidence of an influence of experience on survival or future breeding probability. 4. Using data from individuals whose reproductive life lasted the same number of years, we investigated the influence of experience on reproductive performance within individuals. There is no strong evidence that a process operating within individuals explains the improvement in performance observed at the population level. JF - Journal of Animal Ecology AU - Cam, E AU - Monnat, J-Y AD - USGS, Patuxent Wildlife Research Center, 11510 American Holly Drive, Laurel, MD 20708-4019, USA Y1 - 2000/05// PY - 2000 DA - May 2000 SP - 380 EP - 394 VL - 69 IS - 3 SN - 0021-8790, 0021-8790 KW - Black-legged Kittiwake KW - Animal Behavior Abstracts; Ecology Abstracts KW - Age composition KW - Reproductive behavior KW - Population dynamics KW - Rissa tridactyla KW - Heterogeneity KW - Breeding success KW - D 04671:Birds KW - Y 25426:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17555337?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Animal+Ecology&rft.atitle=Apparent+inferiority+of+first-time+breeders+in+the+kittiwake%3A+the+role+of+heterogeneity+among+age+classes&rft.au=Cam%2C+E%3BMonnat%2C+J-Y&rft.aulast=Cam&rft.aufirst=E&rft.date=2000-05-01&rft.volume=69&rft.issue=3&rft.spage=380&rft.isbn=&rft.btitle=&rft.title=Journal+of+Animal+Ecology&rft.issn=00218790&rft_id=info:doi/10.1046%2Fj.1365-2656.2000.00400.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Rissa tridactyla; Reproductive behavior; Breeding success; Population dynamics; Age composition; Heterogeneity DO - http://dx.doi.org/10.1046/j.1365-2656.2000.00400.x ER - TY - JOUR T1 - Differences in topographic characteristics computed from 100- and 1000-m resolution digital elevation model data AN - 17531166; 4718401 AB - Topographic characteristics computed from 100- and 1000-m resolution digital elevation model (DEM) data are compared for 50 locations representing varied terrain in the conterminous USA. The topographic characteristics are three parameters used extensively in hydrological research and modelling -- slope (S), specific catchment area (A sub(s)) and a wetness index computed as the logarithm of the specific catchment area divided by slope [ln(A sub(s)/S)]. Slope values computed from 1000-m DEMs are smaller than those computed from 100-m DEMs; specific catchment area and the wetness index are larger for the 1000-m DEMs compared with the 100-m DEMs. Most of the differences between the 100- and 1000-m resolution DEMs can be attributed to terrain-discretization effects in the computation of the topographic characteristics and are not the result of smoothing or loss of terrain detail in the coarse data. In general, the terrain-discretization effects are greatest on flat terrain with long length-scale features, and the smoothing effects are greatest on steep terrain with short length-scale features. For the most part, the differences in the average values of the topographic characteristics computed from a 100- and 1000-m resolution DEMs are predictable; that is, biases in the mean values for the characteristics computed from a 1000-m DEM can be corrected with simple linear equations. JF - Hydrological Processes AU - Wolock, D M AU - McCabe, G J AD - US Geological Survey, 4821 Quail Crest Place, Lawrence, Kansas 66049, USA, dwolock@usgs.gov Y1 - 2000/04/30/ PY - 2000 DA - 2000 Apr 30 SP - 987 EP - 1002 VL - 14 IS - 6 SN - 0885-6087, 0885-6087 KW - digital elevation model KW - Water Resources Abstracts KW - Catchment Areas KW - Elevation KW - Hydrology KW - Slopes KW - Topography KW - SW 5080:Evaluation, processing and publication UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17531166?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrological+Processes&rft.atitle=Differences+in+topographic+characteristics+computed+from+100-+and+1000-m+resolution+digital+elevation+model+data&rft.au=Wolock%2C+D+M%3BMcCabe%2C+G+J&rft.aulast=Wolock&rft.aufirst=D&rft.date=2000-04-30&rft.volume=14&rft.issue=6&rft.spage=987&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=08856087&rft_id=info:doi/10.1002%2F%28SICI%291099-1085%2820000430%2914%3A63.0.CO%3B2-A LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Elevation; Topography; Hydrology; Catchment Areas; Slopes DO - http://dx.doi.org/10.1002/(SICI)1099-1085(20000430)14:6<987::AID-HYP980>3.0.CO;2-A ER - TY - JOUR T1 - Precipitation areal-reduction factor estimation using an annual-maxima centered approach AN - 17602032; 4704030 AB - The adjustment of precipitation depth of a point storm to an effective (mean) depth over a watershed is important for characterizing rainfall-runoff relations and for cost-effective designs of hydraulic structures when design storms are considered. A design storm is the precipitation point depth having a specified duration and frequency (recurrence interval). Effective depths are often computed by multiplying point depths by areal-reduction factors (ARF). ARF range from 0 to 1, vary according to storm characteristics, such as recurrence interval; and are a function of watershed characteristics, such as watershed size, shape, and geographic location. This paper presents a new approach for estimating ARF and includes applications for the 1-day design storm in Austin, Dallas, and Houston, Texas. The approach, termed "annual-maxima centered," specifically considers the distribution of concurrent precipitation surrounding an annual-precipitation maxima, which is a feature not seen in other approaches. The approach does not require the prior spatial averaging of precipitation, explicit determination of spatial correlation coefficients, nor explicit definition of a representative area of a particular storm in the analysis. The annual-maxima centered approach was designed to exploit the wide availability of dense precipitation gauge data in many regions of the world. The approach produces ARF that decrease more rapidly than those from TP-29. Furthermore, the ARF from the approach decay rapidly with increasing recurrence interval of the annual-precipitation maxima. JF - Journal of Hydrology (Amsterdam) AU - Asquith, W H AU - Famiglietti, J S AD - Department of Geological Sciences, University of Texas at Austin, Austin, TX 78749, USA, waquith@usgs.gov Y1 - 2000/04/28/ PY - 2000 DA - 2000 Apr 28 SP - 55 EP - 69 PB - Elsevier Science B.V. VL - 230 IS - 1-2 SN - 0022-1694, 0022-1694 KW - Areal precipitation KW - USA, Texas KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Hydraulics KW - Precipitation (Atmospheric) KW - Rainfall-runoff relationships KW - Rainfall KW - Statistical analysis KW - Design storms KW - Freshwater KW - Areal precipitation estimation KW - Watersheds KW - Hydraulic structures KW - Catchment areas KW - Areal Precipitation KW - Statistical Analysis KW - Design data KW - Rainfall/runoff relationship KW - Atmospheric precipitations KW - Rainfall-runoff Relationships KW - Hydraulic Structures KW - Precipitation KW - Watershed hydrology KW - Design Storms KW - Design Criteria KW - Runoff KW - AQ 00001:Water Resources and Supplies KW - Q2 09261:General KW - SW 0815:Precipitation KW - M2 551.501.777:Methods of observation and computation of precipitation (551.501.777) KW - M2 551.577:General Precipitation (551.577) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17602032?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology+%28Amsterdam%29&rft.atitle=Precipitation+areal-reduction+factor+estimation+using+an+annual-maxima+centered+approach&rft.au=Asquith%2C+W+H%3BFamiglietti%2C+J+S&rft.aulast=Asquith&rft.aufirst=W&rft.date=2000-04-28&rft.volume=230&rft.issue=1-2&rft.spage=55&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology+%28Amsterdam%29&rft.issn=00221694&rft_id=info:doi/10.1016%2FS0022-1694%2800%2900170-0 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Hydraulic structures; Atmospheric precipitations; Rainfall; Watersheds; Runoff; Rainfall-runoff relationships; Design storms; Watershed hydrology; Areal precipitation estimation; Hydraulics; Precipitation (Atmospheric); Catchment areas; Statistical analysis; Design data; Rainfall/runoff relationship; Design Storms; Rainfall-runoff Relationships; Design Criteria; Areal Precipitation; Statistical Analysis; Hydraulic Structures; Precipitation; Freshwater DO - http://dx.doi.org/10.1016/S0022-1694(00)00170-0 ER - TY - JOUR T1 - Heightened odds of large earthquakes near Istanbul: An interaction-based probability calculation AN - 17514957; 4702165 AB - We calculate the probability of strong shaking in Istanbul, an urban center of 10 million people, from the description of earthquakes on the North Anatolian fault system in the Marmara Sea during the past 500 years and test the resulting catalog against the frequency of damage in Istanbul during the preceding millennium. Departing from current practice, we include the time-dependent effect of stress transferred by the 1999 moment magnitude M = 7.4 Ismit earthquake to faults nearer to Istanbul. We find a 62 plus or minus 15% probability (one standard deviation) of strong shaking during the next 30 years and 32 plus or minus 12% during the next decade. JF - Science (Washington) AU - Parsons, T AU - Toda, S AU - Stein, R S AU - Barka, A AU - Dieterich, J H AD - US Geol. Survey, Menlo Park, CA 94025, USA, tparsons@usgs.gov Y1 - 2000/04/28/ PY - 2000 DA - 2000 Apr 28 SP - 661 EP - 665 PB - American Association for the Advancement of Science VL - 288 IS - 5466 SN - 0036-8075, 0036-8075 KW - Turkey, Istanbul KW - natural disasters KW - probability KW - Risk Abstracts; Health & Safety Science Abstracts KW - Risk assessment KW - Earthquakes KW - Seismic activity KW - H 6000:Natural Disasters/Civil Defense/Emergency Management KW - R2 23030:Natural hazards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17514957?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+%28Washington%29&rft.atitle=Heightened+odds+of+large+earthquakes+near+Istanbul%3A+An+interaction-based+probability+calculation&rft.au=Parsons%2C+T%3BToda%2C+S%3BStein%2C+R+S%3BBarka%2C+A%3BDieterich%2C+J+H&rft.aulast=Parsons&rft.aufirst=T&rft.date=2000-04-28&rft.volume=288&rft.issue=5466&rft.spage=661&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.288.5466.661 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Earthquakes; Seismic activity; Risk assessment DO - http://dx.doi.org/10.1126/science.288.5466.661 ER - TY - JOUR T1 - The role of landscape and habitat characteristics in limiting abundance of grassland nesting songbirds in an urban open space AN - 17519543; 4711130 AB - We examine the relationships between abundance of grassland nesting songbirds observed in the Boulder Open Space, CO, USA and parameters that described landscape and habitat characteristics, in order to provide information for Boulder Open Space planners and managers. Data sets included bird abundance and plant species composition, collected during three breeding seasons (1994-1996), and landscape composition and configuration measures from a satellite image-derived landcover map. We used regression quantiles to estimate the limitations imposed on bird abundance by urban encroachment and decreasing areas of grassland cover-types on the landscape, and habitat characteristics within 200 m diameter sample plots. After accounting for the effect of landscape grassland composition on four species (Western Meadowlark (Sturnella neglecta), Vesper Sparrow (Pooecetes gramineus), Horned Lark (Eremophila alpestris), and Grasshopper Sparrow (Ammodramus savannarum)), change in abundance with proportion of urban area in the landscape was consistent with the pattern expected for limiting factors that were the active constraint at some times and places. Area of preferred grassland cover-types on the landscape was important for all species, and this remained the case when habitat variables were included in combined landscape-habitat models, with one exception (Western Meadowlark). Analysis of habitat variables enabled identification of important features at the local scale (e.g. shale plant communities in Lark Sparrow (Chondestes grammacus) habitat) that were indistinguishable using landscape data alone. Consideration of changes in the landscape due to urbanization and loss of grassland habitat are crucial for open space planning, and habitat features associated with localized and clumped bird species distributions provide important additional information. Widening the management focus to include areas that are not part of the open space system will facilitate a more complete understanding of potential limiting factor processes. JF - Landscape and Urban Planning AU - Haire, S L AU - Bock, CE AU - Cade, B S AU - Bennett, B C AD - US Geological Survey, Midcontinent Ecological Science Center, 4512 McMurry Ave., Fort Collins, CO 80525, USA, sandy_haire@usgs.gov Y1 - 2000/04/20/ PY - 2000 DA - 2000 Apr 20 SP - 65 EP - 82 VL - 48 IS - 1-2 SN - 0169-2046, 0169-2046 KW - Birds KW - USA, Colorado KW - Ecology Abstracts KW - Aves KW - Grasslands KW - Abundance KW - Landscape KW - Nests KW - Urban environments KW - D 04671:Birds KW - D 04695:Urban environments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17519543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Landscape+and+Urban+Planning&rft.atitle=The+role+of+landscape+and+habitat+characteristics+in+limiting+abundance+of+grassland+nesting+songbirds+in+an+urban+open+space&rft.au=Haire%2C+S+L%3BBock%2C+CE%3BCade%2C+B+S%3BBennett%2C+B+C&rft.aulast=Haire&rft.aufirst=S&rft.date=2000-04-20&rft.volume=48&rft.issue=1-2&rft.spage=65&rft.isbn=&rft.btitle=&rft.title=Landscape+and+Urban+Planning&rft.issn=01692046&rft_id=info:doi/10.1016%2FS0169-2046%2800%2900044-X LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; Landscape; Abundance; Nests; Urban environments; Grasslands DO - http://dx.doi.org/10.1016/S0169-2046(00)00044-X ER - TY - JOUR T1 - Geochemistry of the Springfield Plateau aquifer of the Ozark Plateaus Province in Arkansas, Kansas, Missouri and Oklahoma, USA AN - 17531067; 4718366 AB - Geochemical data indicate that the Springfield Plateau aquifer, a carbonate aquifer of the Ozark Plateaus Province in central USA, has two distinct hydrochemical zones. Within each hydrochemical zone, water from springs is geochemically and isotopically different than water from wells. Geochemical data indicate that spring water generally interacts less with the surrounding rock and has a shorter residence time, probably as a result of flowing along discrete fractures and solution openings, than water from wells. Water type throughout most of the aquifer was calcium bicarbonate, indicating that carbonate-rock dissolution is the primary geochemical process occurring in the aquifer. Concentrations of calcium, bicarbonate, dissolved oxygen and tritium indicate that most ground water in the aquifer recharged rapidly and is relatively young (less than 40 years). In general, field-measured properties, concentrations of many chemical constituents, and calcite saturation indices were greater in samples from the northern part of the aquifer (hydrochemical zone A) than in samples from the southern part of the aquifer (hydrochemical zone B). Factors affecting differences in the geochemical composition of ground water between the two zones are difficult to identify, but could be related to differences in chert content and possibly primary porosity, solubility of the limestone, and amount and type of cementation between zone A than in zone B. In addition, specific conductance, pH, alkalinity, concentrations of many chemical constituents and calcite saturation indices were greater in samples from wells than in samples from springs in each hydrochemical zone. In contrast, concentrations of dissolved oxygen, nitrite plus nitrate, and chloride generally were greater in samples from springs than in samples from wells. Water from springs generally flows rapidly through large conduits with minimum water-rock interactions. Water from wells flow through small fractures, which restrict flow and increase water-rock interactions. As a result, springs tend to be more susceptible to surface contamination than wells. The results of this study have important implications for the geochemical and hydrogeological processes of similar carbonate aquifers in other geographical locations. JF - Hydrological Processes AU - Adamski, J C AD - US Geological Survey, 224 West Central Parkway, Suite 1006, Altamonte Springs, FL 32714, USA, jadamski@usgs.gov Y1 - 2000/04/15/ PY - 2000 DA - 2000 Apr 15 SP - 849 EP - 866 VL - 14 IS - 5 SN - 0885-6087, 0885-6087 KW - USA, Arkansas KW - USA, Kansas KW - USA, Missouri KW - USA, Oklahoma KW - Water Resources Abstracts KW - Aquifers KW - Springs KW - Carbonates KW - Geochemistry KW - Geohydrology KW - Chemical Analysis KW - Dissolved Oxygen KW - Groundwater KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17531067?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrological+Processes&rft.atitle=Geochemistry+of+the+Springfield+Plateau+aquifer+of+the+Ozark+Plateaus+Province+in+Arkansas%2C+Kansas%2C+Missouri+and+Oklahoma%2C+USA&rft.au=Adamski%2C+J+C&rft.aulast=Adamski&rft.aufirst=J&rft.date=2000-04-15&rft.volume=14&rft.issue=5&rft.spage=849&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=08856087&rft_id=info:doi/10.1002%2F%28SICI%291099-1085%2820000415%2914%3A53.0.CO%3B2-7 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Geochemistry; Springs; Groundwater; Aquifers; Dissolved Oxygen; Chemical Analysis; Geohydrology; Carbonates DO - http://dx.doi.org/10.1002/(SICI)1099-1085(20000415)14:5<849::AID-HYP973>3.0.CO;2-7 ER - TY - JOUR T1 - Occurrence of cotton herbicides and insecticides in playa lakes of the High Plains of West Texas. AN - 71124574; 10805239 AB - During the summer of 1997, water samples were collected and analyzed for pesticides from 32 playa lakes of the High Plains that receive drainage from both cotton and corn agriculture in West Texas. The major cotton herbicides detected in the water samples were diuron, fluometuron, metolachlor, norflurazon, and prometryn. Atrazine and propazine, corn and sorghum herbicides, were also routinely detected in samples from the playa lakes. Furthermore, the metabolites of all the herbicides studied were found in the playa lake samples. In some cases, the concentration of metabolites was equal to or exceeded the concentration of the parent compound. The types of metabolites detected suggested that the parent compounds had been transported to and had undergone degradation in the playa lakes. The types of metabolites and the ratio of metabolites to parent compounds may be useful in indicating the time that the herbicides were transported to the playa lakes. The median concentration of total herbicides was 7.2 microg/l, with the largest total concentrations exceeding 30 microg/l. Organophosphate insecticides were detected in only one water sample. Further work will improve the understanding of the fate of these compounds in the playa lake area. JF - The Science of the total environment AU - Thurman, E M AU - Bastian, K C AU - Mollhagen, T AD - US Geological Survey, Lawrence, KS 66049, USA. ethurman@usgs.gov Y1 - 2000/04/05/ PY - 2000 DA - 2000 Apr 05 SP - 189 EP - 200 VL - 248 IS - 2-3 SN - 0048-9697, 0048-9697 KW - Herbicides KW - 0 KW - Insecticides KW - Water Pollutants, Chemical KW - Index Medicus KW - Texas KW - Gossypium KW - Herbicides -- metabolism KW - Fresh Water -- chemistry KW - Water Pollutants, Chemical -- analysis KW - Herbicides -- analysis KW - Insecticides -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71124574?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Science+of+the+total+environment&rft.atitle=Occurrence+of+cotton+herbicides+and+insecticides+in+playa+lakes+of+the+High+Plains+of+West+Texas.&rft.au=Thurman%2C+E+M%3BBastian%2C+K+C%3BMollhagen%2C+T&rft.aulast=Thurman&rft.aufirst=E&rft.date=2000-04-05&rft.volume=248&rft.issue=2-3&rft.spage=189&rft.isbn=&rft.btitle=&rft.title=The+Science+of+the+total+environment&rft.issn=00489697&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-08 N1 - Date created - 2000-06-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Use of radioimmunoassay as a screen for antibiotics in confined animal feeding operations and confirmation by liquid chromatography/mass spectrometry. AN - 71124536; 10805238 AB - Approximately one-half of the 50,000,000 lb of antibiotics produced in the USA are used in agriculture. Because of the intensive use of antibiotics in the management of confined livestock operations, the potential exists for the transport of these compounds and their metabolites into our nation's water resources. A commercially available radioimmunoassay method, developed as a screen for tetracycline antibiotics in serum, urine, milk, and tissue, was adapted to analyze water samples at a detection level of approximately 1.0 ppb and a semiquantitative analytical range of 1-20 ppb. Liquid waste samples were obtained from 13 hog lagoons in three states and 52 surface- and ground-water samples were obtained primarily from areas associated with intensive swine and poultry production in seven states. These samples were screened for the tetracycline antibiotics by using the modified radioimmunoassay screening method. The radioimmunoassay tests yielded positive results for tetracycline antibiotics in samples from all 13 of the hog lagoons. Dilutions of 10-100-fold of the hog lagoon samples indicated that tetracycline antibiotic concentrations ranged from approximately 5 to several hundred parts per billion in liquid hog lagoon waste. Of the 52 surface- and ground-water samples collected all but two tested negative and these two samples contained tetracycline antibiotic concentrations less than 1 ppb. A new liquid chromatography/mass spectrometry method was used to confirm the radioimmunoassay results in 9 samples and also to identify the tetracycline antibiotics to which the radioimmunoassay test was responding. The new liquid chromatography/mass spectrometry method with online solid-phase extraction and a detection level of 0.5 microg/l confirmed the presence of chlorotetracycline in the hog lagoon samples and in one of the surface-water samples. The concentrations calculated from the radioimmunoassay were a factor of 1-5 times less than those calculated by the liquid chromatography/mass spectrometry concentrations for chlorotetracycline. JF - The Science of the total environment AU - Meyer, M T AU - Bumgarner, J E AU - Varns, J L AU - Daughtridge, J V AU - Thurman, E M AU - Hostetler, K A AD - U.S. Geological Survey, Raleigh, NC 27607, USA. mmeyer@usgs.gov Y1 - 2000/04/05/ PY - 2000 DA - 2000 Apr 05 SP - 181 EP - 187 VL - 248 IS - 2-3 SN - 0048-9697, 0048-9697 KW - Anti-Bacterial Agents KW - 0 KW - Tetracyclines KW - Water Pollutants, Chemical KW - Index Medicus KW - Animal Husbandry -- methods KW - Chromatography, Liquid -- methods KW - Water Pollutants, Chemical -- analysis KW - Anti-Bacterial Agents -- analysis KW - Mass Spectrometry -- methods KW - Radioimmunoassay -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71124536?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Science+of+the+total+environment&rft.atitle=Use+of+radioimmunoassay+as+a+screen+for+antibiotics+in+confined+animal+feeding+operations+and+confirmation+by+liquid+chromatography%2Fmass+spectrometry.&rft.au=Meyer%2C+M+T%3BBumgarner%2C+J+E%3BVarns%2C+J+L%3BDaughtridge%2C+J+V%3BThurman%2C+E+M%3BHostetler%2C+K+A&rft.aulast=Meyer&rft.aufirst=M&rft.date=2000-04-05&rft.volume=248&rft.issue=2-3&rft.spage=181&rft.isbn=&rft.btitle=&rft.title=The+Science+of+the+total+environment&rft.issn=00489697&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-08 N1 - Date created - 2000-06-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Nitrogen flux and sources in the Mississippi River Basin. AN - 71098547; 10805229 AB - Nitrogen from the Mississippi River Basin is believed to be at least partly responsible for the large zone of oxygen-depleted water that develops in the Gulf of Mexico each summer. Historical data show that concentrations of nitrate in the Mississippi River and some of its tributaries have increased by factors of 2 to more than 5 since the early 1900s. We have used the historical streamflow and concentration data in regression models to estimate the annual flux of nitrogen (N) to the Gulf of Mexico and to determine where the nitrogen originates within the Mississippi Basin. Results show that for 1980-1996 the mean annual total N flux to the Gulf of Mexico was 1,568,000 t/year. The flux was approximately 61% nitrate as N, 37% organic N, and 2% ammonium as N. The flux of nitrate to the Gulf has approximately tripled in the last 30 years with most of the increase occurring between 1970 and 1983. The mean annual N flux has changed little since the early 1980s, but large year-to-year variations in N flux occur because of variations in precipitation. During wet years the N flux can increase by 50% or more due to flushing of nitrate that has accumulated in the soils and unsaturated zones in the basin. The principal source areas of N are basins in southern Minnesota, Iowa, Illinois, Indiana, and Ohio that drain agricultural land. Basins in this region yield 800 to more than 3100 kg total N/km2 per year to streams, several times the N yield of basins outside this region. Assuming conservative transport of N in the Mississippi River, streams draining Iowa and Illinois contribute on average approximately 35% of the total N discharged by the Mississippi River to the Gulf of Mexico. In years with high precipitation they can contribute a larger percentage. JF - The Science of the total environment AU - Goolsby, D A AU - Battaglin, W A AU - Aulenbach, B T AU - Hooper, R P AD - US Geological Survey, Water Resources Division, Denver, CO 80225, USA. dgoolsby@usgs.gov Y1 - 2000/04/05/ PY - 2000 DA - 2000 Apr 05 SP - 75 EP - 86 VL - 248 IS - 2-3 SN - 0048-9697, 0048-9697 KW - Nitrates KW - 0 KW - Water Pollutants, Chemical KW - Nitrogen KW - N762921K75 KW - Index Medicus KW - Regression Analysis KW - Mexico KW - Mississippi KW - Nitrates -- analysis KW - Fresh Water -- chemistry KW - Water Pollutants, Chemical -- analysis KW - Nitrogen -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71098547?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Science+of+the+total+environment&rft.atitle=Nitrogen+flux+and+sources+in+the+Mississippi+River+Basin.&rft.au=Goolsby%2C+D+A%3BBattaglin%2C+W+A%3BAulenbach%2C+B+T%3BHooper%2C+R+P&rft.aulast=Goolsby&rft.aufirst=D&rft.date=2000-04-05&rft.volume=248&rft.issue=2-3&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=The+Science+of+the+total+environment&rft.issn=00489697&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-08 N1 - Date created - 2000-06-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Finding minimal herbicide concentrations in ground water? Try looking for their degradates. AN - 71097805; 10805232 AB - Extensive research has been conducted regarding the occurrence of herbicides in the hydrologic system, their fate, and their effects on human health and the environment. Few studies, however, have considered herbicide transformation products (degradates). In this study of Iowa ground water, herbicide degradates were frequently detected. In fact, herbicide degradates were eight of the 10 most frequently detected compounds. Furthermore, a majority of a herbicide's measured concentration was in the form of its degradates--ranging from 55 to over 99%. The herbicide detection frequencies and concentrations varied significantly among the major aquifer types sampled. These differences, however, were much more pronounced when herbicide degradates were included. Aquifer types presumed to have the most rapid recharge rates (alluvial and bedrock/karst region aquifers) were those most likely to contain detectable concentrations of herbicide compounds. Two indirect estimates of ground-water age (depth of well completion and dissolved-oxygen concentration) were used to separate the sampled wells into general vulnerability classes (low, intermediate, and high). The results show that the herbicide detection frequencies and concentrations varied significantly among the vulnerability classes regardless of whether or not herbicide degradates were considered. Nevertheless, when herbicide degradates were included, the frequency of herbicide compound detection within the highest vulnerability class approached 90%, and the median total herbicide residue concentration increased over an order of magnitude, relative to the parent compounds alone, to 2 microg/l. The results from this study demonstrate that obtaining data on herbicide degradates is critical for understanding the fate of herbicides in the hydrologic system. Furthermore, the prevalence of herbicide degradates documented in this study suggests that to accurately determine the overall effect on human health and the environment of a specific herbicide its degradates should also be considered. JF - The Science of the total environment AU - Kolpin, D W AU - Thurman, E M AU - Linhart, S M AD - US Geological Survey, Iowa City, IA 52244, USA. dwkolpin@usgs.gov Y1 - 2000/04/05/ PY - 2000 DA - 2000 Apr 05 SP - 115 EP - 122 VL - 248 IS - 2-3 SN - 0048-9697, 0048-9697 KW - Acetamides KW - 0 KW - Alkanesulfonates KW - Herbicides KW - Toluidines KW - Triazines KW - Water Pollutants, Chemical KW - 6-deisopropylatrazine KW - 1007-28-9 KW - oxanilic acid KW - 136B46378D KW - 2-hydroxyatrazine KW - 2163-68-0 KW - alachlor KW - 24S2S61PXL KW - ethane sulfonate KW - 594-45-6 KW - 4-deethylatrazine KW - 6190-65-4 KW - acetochlor KW - 8L08WMO94K KW - Atrazine KW - QJA9M5H4IM KW - Oxamic Acid KW - QU60N5OPLG KW - cyanazine KW - W34C4P18WD KW - metolachlor KW - X0I01K05X2 KW - Index Medicus KW - Toluidines -- analysis KW - Triazines -- analysis KW - Atrazine -- analogs & derivatives KW - Acetamides -- analysis KW - Oxamic Acid -- analysis KW - Oxamic Acid -- analogs & derivatives KW - Atrazine -- analysis KW - Biodegradation, Environmental KW - Alkanesulfonates -- analysis KW - Iowa KW - Fresh Water -- chemistry KW - Water Pollutants, Chemical -- analysis KW - Herbicides -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71097805?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Science+of+the+total+environment&rft.atitle=Finding+minimal+herbicide+concentrations+in+ground+water%3F+Try+looking+for+their+degradates.&rft.au=Kolpin%2C+D+W%3BThurman%2C+E+M%3BLinhart%2C+S+M&rft.aulast=Kolpin&rft.aufirst=D&rft.date=2000-04-05&rft.volume=248&rft.issue=2-3&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=The+Science+of+the+total+environment&rft.issn=00489697&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-08 N1 - Date created - 2000-06-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Herbicides and herbicide degradates in shallow groundwater and the Cedar River near a municipal well field, Cedar Rapids, Iowa. AN - 71095962; 10805243 AB - Water samples were collected near a Cedar Rapids, Iowa municipal well field from June 1998 to August 1998 and analyzed for selected triazine and acetanilide herbicides and degradates. The purpose of the study was to evaluate the occurrence of herbicides and herbicide degradates in the well field during a period following springtime application of herbicides to upstream cropland. The well field is in an alluvial aquifer adjacent to the Cedar River. Parent herbicide concentrations generally were greatest in June, and decreased in July and August. Atrazine was most frequently detected and occurred at the greatest concentrations; acetochlor, cyanazine and metolachlor also were detected, but at lesser concentrations than atrazine. Triazine degradate concentrations were relatively small (< 0.50 microg/l) and generally decreased from June to August. Although the rate of groundwater movement is relatively fast (approx. 1 m per day) in the alluvial aquifer near the Cedar River, deethylatrazine (DEA) to atrazine ratios in groundwater samples collected near the Cedar River indicate that atrazine and DEA probably are gradually transported into the alluvial aquifer from the Cedar River. Deisopropylatrazine (DIA) to DEA ratios in water samples indicate most DIA in the Cedar River and alluvial aquifer is produced by atrazine degradation, although some could be from cyanazine degradation. Acetanilide degradates were detected more frequently and at greater concentrations than their corresponding parent herbicides. Ethanesulfonic-acid (ESA) degradates comprised at least 80% of the total acetanilide-degradate concentrations in samples collected from the Cedar River and alluvial aquifer in June, July and August; oxanilic acid degradates comprised less than 20% of the total concentrations. ESA-degradate concentrations generally were smallest in June and greater in July and August. Acetanilide degradate concentrations in groundwater adjacent to the Cedar River indicate acetanilide degradates are transported into the alluvial aquifer in a manner similar to that indicated for atrazine and DEA. JF - The Science of the total environment AU - Boyd, R A AD - U.S. Geological Survey, Iowa City, IA 52244, USA. raboyd@usgs.gov Y1 - 2000/04/05/ PY - 2000 DA - 2000 Apr 05 SP - 241 EP - 253 VL - 248 IS - 2-3 SN - 0048-9697, 0048-9697 KW - Acetamides KW - 0 KW - Herbicides KW - Toluidines KW - Triazines KW - Water Pollutants, Chemical KW - acetochlor KW - 8L08WMO94K KW - metolachlor KW - X0I01K05X2 KW - Index Medicus KW - Toluidines -- analysis KW - Toluidines -- metabolism KW - Acetamides -- analysis KW - Acetamides -- metabolism KW - Iowa KW - Herbicides -- metabolism KW - Fresh Water -- chemistry KW - Water Pollutants, Chemical -- analysis KW - Herbicides -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71095962?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Science+of+the+total+environment&rft.atitle=Herbicides+and+herbicide+degradates+in+shallow+groundwater+and+the+Cedar+River+near+a+municipal+well+field%2C+Cedar+Rapids%2C+Iowa.&rft.au=Boyd%2C+R+A&rft.aulast=Boyd&rft.aufirst=R&rft.date=2000-04-05&rft.volume=248&rft.issue=2-3&rft.spage=241&rft.isbn=&rft.btitle=&rft.title=The+Science+of+the+total+environment&rft.issn=00489697&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-08 N1 - Date created - 2000-06-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Occurrence of pesticides in rain and air in urban and agricultural areas of Mississippi, April-September 1995. AN - 71095914; 10805242 AB - In April 1995, the US Geological Survey began a study to determine the occurrence and temporal distribution of 49 pesticides and pesticide metabolites in air and rain samples from an urban and an agricultural sampling site in Mississippi. The study was a joint effort between the National Water-Quality Assessment and the Toxic Substances Programs and was part of a larger study examining the occurrence and temporal distribution of pesticides in air and rain in the Mississippi River basin. Concurrent high-volume air and wet-only deposition samples were collected weekly. The air samplers consisted of a glass-fiber filter to collect particles and tandem polyurethane foam plugs to collect gas-phase pesticides. Every rain and air sample collected from the urban and agricultural sites had detectable levels of multiple pesticides. The magnitude of the total concentration was 5-10 times higher at the agricultural site as compared to the urban site. The pesticide with the highest concentration in rain at both sites was methyl parathion. The pesticide with the highest concentration in the air samples from the agricultural site was also methyl parathion, but from the urban site the highest concentration was diazinon followed closely by chlorpyrifos. More than two decades since p,p'-DDT was banned from use in the United States, p,p'-DDE, a metabolite of p,p'-DDT, was detected in every air sample collected from the agricultural site and in more than half of the air samples from the urban site. JF - The Science of the total environment AU - Coupe, R H AU - Manning, M A AU - Foreman, W T AU - Goolsby, D A AU - Majewski, M S AD - US Geological Survey, Pearl, MS 39208-6649, USA. rhcoupe@usgs.gov Y1 - 2000/04/05/ PY - 2000 DA - 2000 Apr 05 SP - 227 EP - 240 VL - 248 IS - 2-3 SN - 0048-9697, 0048-9697 KW - Air Pollutants KW - 0 KW - Pesticides KW - Water Pollutants, Chemical KW - Index Medicus KW - Agriculture KW - Cities KW - Mississippi KW - Pesticides -- analysis KW - Water Pollutants, Chemical -- analysis KW - Rain KW - Air Pollutants -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71095914?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Science+of+the+total+environment&rft.atitle=Occurrence+of+pesticides+in+rain+and+air+in+urban+and+agricultural+areas+of+Mississippi%2C+April-September+1995.&rft.au=Coupe%2C+R+H%3BManning%2C+M+A%3BForeman%2C+W+T%3BGoolsby%2C+D+A%3BMajewski%2C+M+S&rft.aulast=Coupe&rft.aufirst=R&rft.date=2000-04-05&rft.volume=248&rft.issue=2-3&rft.spage=227&rft.isbn=&rft.btitle=&rft.title=The+Science+of+the+total+environment&rft.issn=00489697&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-08 N1 - Date created - 2000-06-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Pesticides in the atmosphere of the Mississippi River Valley, part I--rain. AN - 71095807; 10805240 AB - Weekly composite rainfall samples were collected in three paired urban and agricultural regions of the Midwestern United States and along the Mississippi River during April-September 1995. The paired sampling sites were located in Mississippi, Iowa, and Minnesota. A background site, removed from dense urban and agriculture areas, was located near Lake Superior in Michigan. Herbicides were the predominant type of pesticide detected at every site. Each sample was analyzed for 47 compounds and 23 of 26 herbicides, 13 of 18 insecticides, and three of three related transformation products were detected in one or more sample from each paired site. The detection frequency of herbicides and insecticides were nearly equivalent at the paired Iowa and Minnesota sites. In Mississippi, herbicides were detected more frequently at the agricultural site and insecticides were detected more frequently at the urban site. The highest total wet depositional amounts (microg pesticide/m2 per season) occurred at the agricultural sites in Mississippi (1980 microg/m2) and Iowa (490 microg/m2) and at the urban site in Iowa (696 microg/m2). Herbicides accounted for the majority of the wet depositional loading at the Iowa and Minnesota sites, but methyl parathion (1740 microg/m2) was the dominant compound contributing to the total loading at the agricultural site in Mississippi. Atrazine, CIAT (a transformation product of atrazine and propazine) and dacthal were detected most frequently (76, 53, and 53%, respectively) at the background site indicating their propensity for long-range atmospheric transport. JF - The Science of the total environment AU - Majewski, M S AU - Foreman, W T AU - Goolsby, D A AD - US Geological Survey, Water Resources Division, Sacramento, CA 95819-6129, USA. majewski@usgs.gov Y1 - 2000/04/05/ PY - 2000 DA - 2000 Apr 05 SP - 201 EP - 212 VL - 248 IS - 2-3 SN - 0048-9697, 0048-9697 KW - Air Pollutants KW - 0 KW - Herbicides KW - Insecticides KW - Pesticides KW - Index Medicus KW - Minnesota KW - Cities KW - Chemistry Techniques, Analytical -- methods KW - Herbicides -- analysis KW - Seasons KW - Mississippi KW - Chemical Precipitation KW - Iowa KW - Insecticides -- analysis KW - Pesticides -- analysis KW - Rain KW - Air Pollutants -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71095807?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Science+of+the+total+environment&rft.atitle=Pesticides+in+the+atmosphere+of+the+Mississippi+River+Valley%2C+part+I--rain.&rft.au=Majewski%2C+M+S%3BForeman%2C+W+T%3BGoolsby%2C+D+A&rft.aulast=Majewski&rft.aufirst=M&rft.date=2000-04-05&rft.volume=248&rft.issue=2-3&rft.spage=201&rft.isbn=&rft.btitle=&rft.title=The+Science+of+the+total+environment&rft.issn=00489697&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-08 N1 - Date created - 2000-06-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Detection of persistent organic pollutants in the Mississippi Delta using semipermeable membrane devices. AN - 71095752; 10805237 AB - From semipermeable membrane devices (SPMDs) placed in five Mississippi Delta streams in 1996 and 1997, the persistent organic pollutants (POPs) aldrin, chlordane, DCPA, DDT, dieldrin, endrin, heptachlor, mirex, nonachlor, and toxaphene were detected. In addition, the insecticides chlorpyriphos, endosulfan, and hexachlorocyclohexanes were detected. Two low-solubility herbicides not detected commonly in surface water, pendimethalin and trifluralin, were also detected. JF - The Science of the total environment AU - Zimmerman, L R AU - Thurman, E M AU - Bastian, K C AD - University of Kansas Center for Research, Lawrence 66045, USA. izimmer@usgs.gov Y1 - 2000/04/05/ PY - 2000 DA - 2000 Apr 05 SP - 169 EP - 179 VL - 248 IS - 2-3 SN - 0048-9697, 0048-9697 KW - Aniline Compounds KW - 0 KW - Membranes, Artificial KW - Organic Chemicals KW - Pesticides KW - Water Pollutants, Chemical KW - Trifluralin KW - C8BX46QL7K KW - DDT KW - CIW5S16655 KW - pendimethalin KW - VL6L14C06U KW - Index Medicus KW - Animals KW - Fishes KW - Mississippi KW - Aniline Compounds -- analysis KW - Trifluralin -- analysis KW - DDT -- analysis KW - Pesticides -- analysis KW - Fresh Water -- chemistry KW - Water Pollutants, Chemical -- analysis KW - Organic Chemicals -- analysis KW - Environmental Monitoring -- methods KW - Environmental Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71095752?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Science+of+the+total+environment&rft.atitle=Detection+of+persistent+organic+pollutants+in+the+Mississippi+Delta+using+semipermeable+membrane+devices.&rft.au=Zimmerman%2C+L+R%3BThurman%2C+E+M%3BBastian%2C+K+C&rft.aulast=Zimmerman&rft.aufirst=L&rft.date=2000-04-05&rft.volume=248&rft.issue=2-3&rft.spage=169&rft.isbn=&rft.btitle=&rft.title=The+Science+of+the+total+environment&rft.issn=00489697&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-08 N1 - Date created - 2000-06-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Routine determination of sulfonylurea, imidazolinone, and sulfonamide herbicides at nanogram-per-liter concentrations by solid-phase extraction and liquid chromatography/mass spectrometry. AN - 71095735; 10805234 AB - Sulfonylurea (SU), imidazolinone (IMI), and sulfonamide (SA) herbicides are new classes of low-application-rate herbicides increasingly used by farmers. Some of these herbicides affect both weed and crop species at low dosages and must be carefully used. Less is known about the effect of these compounds on non-crop plant species, but a concentration of 100 ng/l in water has been proposed as the threshold for possible plant toxicity for most of these herbicides. Hence, analytical methods must be capable of detecting SUs, IMIs, and SAs at concentrations less than 100 ng/l in ambient water samples. The authors developed a two-cartridge, solid-phase extraction method for isolating 12 SU, 3 IMI, and 1 SA herbicides by using high-performance liquid chromatography/electrospray ionization-mass spectrometry (HPLC/ESI-MS) to identify and quantify these herbicides to 10 ng/l. This method was used to analyze 196 surface- and ground-water samples collected from May to August 1998 throughout the Midwestern United States, and more than 100 quality-assurance and quality-control samples. During the 16 weeks of the study, the HPLC/ESI-MS maintained excellent calibration linearity across the calibration range from 5 to 500 ng/l, with correlation coefficients of 0.9975 or greater. Continuing calibration verification standards at 100-ng/l concentration were analyzed throughout the study, and the average measured concentrations for individual herbicides ranged from 93 to 100 ng/l. Recovery of herbicides from 27 reagent-water samples spiked at 50 and 100 ng/l ranged from 39 to 92%, and averaged 73%. The standard deviation of recoveries ranged from 14 to 26%, and averaged 20%. This variability reflects multiple instruments, operators, and the use of automated and manual sample preparation. Spiked environmental water samples had similar recoveries, although for some herbicides, the sample matrix enhanced recoveries by as much as 200% greater than the spiked concentration. This matrix enhancement was sample- and compound-dependent. Concentrations of herbicides in unspiked duplicate environmental samples were typically within 25% of each other. The results demonstrate the usefulness of HPLC/ESI-MS for determining low-application-rate herbicides at ambient concentrations. JF - The Science of the total environment AU - Furlong, E T AU - Burkhardt, M R AU - Gates, P M AU - Werner, S L AU - Battaglin, W A AD - US Geological Survey, National Water Quality Laboratory, Denver, CO 80225-0046, USA. efurlong@usgs.gov Y1 - 2000/04/05/ PY - 2000 DA - 2000 Apr 05 SP - 135 EP - 146 VL - 248 IS - 2-3 SN - 0048-9697, 0048-9697 KW - Herbicides KW - 0 KW - Imidazoles KW - Sulfonamides KW - Sulfonylurea Compounds KW - Water Pollutants, Chemical KW - Index Medicus KW - Midwestern United States KW - Sulfonamides -- analysis KW - Water Pollutants, Chemical -- analysis KW - Herbicides -- analysis KW - Sulfonylurea Compounds -- analysis KW - Chromatography, High Pressure Liquid -- methods KW - Mass Spectrometry -- methods KW - Imidazoles -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71095735?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Science+of+the+total+environment&rft.atitle=Routine+determination+of+sulfonylurea%2C+imidazolinone%2C+and+sulfonamide+herbicides+at+nanogram-per-liter+concentrations+by+solid-phase+extraction+and+liquid+chromatography%2Fmass+spectrometry.&rft.au=Furlong%2C+E+T%3BBurkhardt%2C+M+R%3BGates%2C+P+M%3BWerner%2C+S+L%3BBattaglin%2C+W+A&rft.aulast=Furlong&rft.aufirst=E&rft.date=2000-04-05&rft.volume=248&rft.issue=2-3&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=The+Science+of+the+total+environment&rft.issn=00489697&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-08 N1 - Date created - 2000-06-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Occurrence of sulfonylurea, sulfonamide, imidazolinone, and other herbicides in rivers, reservoirs and ground water in the Midwestern United States, 1998. AN - 71095688; 10805233 AB - Sulfonylurea (SU), sulfonamide (SA), and imidazolinone (IMI) herbicides are relatively new classes of chemical compounds that function by inhibiting the action of a plant enzyme, stopping plant growth, and eventually killing the plant. These compounds generally have low mammalian toxicity, but plants demonstrate a wide range in sensitivity to SUs, SAs, and IMIs with over a 10,000-fold difference in observed toxicity levels for some compounds. SUs, SAs, and IMIs are applied either pre- or post-emergence to crops commonly at 1/50th or less of the rate of other herbicides. Little is known about their occurrence, fate, or transport in surface water or ground water in the USA. To obtain information on the occurrence of SU, SA, and IMI herbicides in the Midwestern United States, 212 water samples were collected from 75 surface-water and 25 ground-water sites in 1998. These samples were analyzed for 16 SU, SA and IMI herbicides by USGS Methods Research and Development Program staff using high-performance liquid chromatography/mass spectrometry. Samples were also analyzed for 47 pesticides or pesticide degradation products. At least one of the 16 SUs, SAs or IMIs was detected above the method reporting limit (MRL) of 0.01 microg/l in 83% of 130 stream samples. Imazethapyr was detected most frequently (71% of samples) followed by flumetsulam (63% of samples) and nicosulfuron (52% of samples). The sum of SU, SA and IMI concentrations exceeded 0.5 microg/l in less than 10% of stream samples. Acetochlor, alachlor, atrazine, cyanazine and metolachlor were all detected in 90% or more of 129 stream samples. The sum of the concentration of these five herbicides exceeded 50 microg/l in approximately 10% of stream samples. At least one SU, SA, or IMI herbicide was detected above the MRL in 24% of 25 ground-water samples and 86% of seven reservoir samples. JF - The Science of the total environment AU - Battaglin, W A AU - Furlong, E T AU - Burkhardt, M R AU - Peter, C J AD - U.S. Geological Survey, Office of the Regional Hydrologist, Denver, CO 80225, USA. wbattagl@usgs.gov Y1 - 2000/04/05/ PY - 2000 DA - 2000 Apr 05 SP - 123 EP - 133 VL - 248 IS - 2-3 SN - 0048-9697, 0048-9697 KW - Herbicides KW - 0 KW - Imidazoles KW - Sulfonamides KW - Sulfonylurea Compounds KW - Water Pollutants, Chemical KW - Index Medicus KW - Midwestern United States KW - Sulfonamides -- analysis KW - Fresh Water -- chemistry KW - Water Pollutants, Chemical -- analysis KW - Herbicides -- analysis KW - Sulfonylurea Compounds -- analysis KW - Imidazoles -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71095688?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Science+of+the+total+environment&rft.atitle=Occurrence+of+sulfonylurea%2C+sulfonamide%2C+imidazolinone%2C+and+other+herbicides+in+rivers%2C+reservoirs+and+ground+water+in+the+Midwestern+United+States%2C+1998.&rft.au=Battaglin%2C+W+A%3BFurlong%2C+E+T%3BBurkhardt%2C+M+R%3BPeter%2C+C+J&rft.aulast=Battaglin&rft.aufirst=W&rft.date=2000-04-05&rft.volume=248&rft.issue=2-3&rft.spage=123&rft.isbn=&rft.btitle=&rft.title=The+Science+of+the+total+environment&rft.issn=00489697&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-08 N1 - Date created - 2000-06-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Analysis of selected herbicide metabolites in surface and ground water of the United States. AN - 71094185; 10805236 AB - One of the primary goals of the US Geological Survey (USGS) Laboratory in Lawrence, Kansas, is to develop analytical methods for the analysis of herbicide metabolites in surface and ground water that are vital to the study of herbicide fate and degradation pathways in the environment. Methods to measure metabolite concentrations from three major classes of herbicides--triazine, chloroacetanilide and phenyl-urea--have been developed. Methods for triazine metabolite detection cover nine compounds: six compounds are detected by gas chromatography/mass spectrometry; one is detected by high-performance liquid chromatography with diode-array detection; and eight are detected by liquid chromatography/mass spectrometry. Two metabolites of the chloroacetanilide herbicides--ethane sulfonic acid and oxanilic acid--are detected by high-performance liquid chromatography with diode-array detection and liquid chromatography/mass spectrometry. Alachlor ethane sulfonic acid also has been detected by solid-phase extraction and enzyme-linked immunosorbent assay. Six phenylurea metabolites are all detected by liquid chromatography/mass spectrometry; four of the six metabolites also are detected by gas chromatography/mass spectrometry. Additionally, surveys of herbicides and their metabolites in surface water, ground water, lakes, reservoirs, and rainfall have been conducted through the USGS laboratory in Lawrence. These surveys have been useful in determining herbicide and metabolite occurrence and temporal distribution and have shown that metabolites may be useful in evaluation of non-point-source contamination. JF - The Science of the total environment AU - Scribner, E A AU - Thurman, E M AU - Zimmerman, L R AD - US Geological Survey, Lawrence, KS 66049, USA. scribner@usgs.gov Y1 - 2000/04/05/ PY - 2000 DA - 2000 Apr 05 SP - 157 EP - 167 VL - 248 IS - 2-3 SN - 0048-9697, 0048-9697 KW - Herbicides KW - 0 KW - Water Pollutants, Chemical KW - Index Medicus KW - United States KW - Enzyme-Linked Immunosorbent Assay -- methods KW - Chromatography, High Pressure Liquid -- methods KW - Mass Spectrometry -- methods KW - Data Collection KW - Herbicides -- metabolism KW - Fresh Water -- chemistry KW - Water Pollutants, Chemical -- analysis KW - Herbicides -- analysis KW - Water Pollutants, Chemical -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71094185?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Science+of+the+total+environment&rft.atitle=Analysis+of+selected+herbicide+metabolites+in+surface+and+ground+water+of+the+United+States.&rft.au=Scribner%2C+E+A%3BThurman%2C+E+M%3BZimmerman%2C+L+R&rft.aulast=Scribner&rft.aufirst=E&rft.date=2000-04-05&rft.volume=248&rft.issue=2-3&rft.spage=157&rft.isbn=&rft.btitle=&rft.title=The+Science+of+the+total+environment&rft.issn=00489697&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-08 N1 - Date created - 2000-06-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Atmospheric nitrogen in the Mississippi River Basin--emissions, deposition and transport. AN - 71094132; 10805230 AB - Atmospheric deposition of nitrogen has been cited as a major factor in the nitrogen saturation of forests in the north-eastern United States and as a contributor to the eutrophication of coastal waters, including the Gulf of Mexico near the mouth of the Mississippi River. Sources of nitrogen emissions and the resulting spatial patterns of nitrogen deposition within the Mississippi River Basin, however, have not been fully documented. An assessment of atmospheric nitrogen in the Mississippi River Basin was therefore conducted in 1998-1999 to: (1) evaluate the forms in which nitrogen is deposited from the atmosphere; (2) quantify the spatial distribution of atmospheric nitrogen deposition throughout the basin; and (3) relate locations of emission sources to spatial deposition patterns to evaluate atmospheric transport. Deposition data collected through the NADP/NTN (National Atmospheric Deposition Program/National Trends Network) and CASTNet (Clean Air Status and Trends Network) were used for this analysis. NOx Tier 1 emission data by county was obtained for 1992 from the US Environmental Protection Agency (Emissions Trends Viewer CD, 1985-1995, version 1.0, September 1996) and NH3 emissions data was derived from the 1992 Census of Agriculture (US Department of Commerce. Census of Agriculture, US Summary and County Level Data, US Department of Commerce, Bureau of the Census. Geographic Area series, 1995:1b) or the National Agricultural Statistics Service (US Department of Agriculture. National Agricultural Statistics Service Historical Data. Accessed 7/98 at URL, 1998. http://www.usda.gov/nass/pubs/hisdata++ +.htm). The highest rates of wet deposition of NO3- were in the north-eastern part of the basin, downwind of electric utility plants and urban areas, whereas the highest rates of wet deposition of NH4+ were in Iowa, near the center of intensive agricultural activities in the Midwest. The lowest rates of atmospheric nitrogen deposition were on the western (windward) side of the basin, which suggests that most of the nitrogen deposited within the basin is derived from internal sources. Atmospheric transport eastward across the basin boundary is greater for NO3- than NH4+, but a significant amount of NH4+ is likely to be transported out of the basin through the formation of (NH4)2SO4 and NH4NO3 particles--a process that greatly increases the atmospheric residence time of NH4+. This process is also a likely factor in the atmospheric transport of nitrogen from the Midwest to upland forest regions in the North-East, such as the western Adirondack region of New York, where NH4+ constitutes 38% of the total wet deposition of N. JF - The Science of the total environment AU - Lawrence, G B AU - Goolsby, D A AU - Battaglin, W A AU - Stensland, G J AD - US Geological Survey, Troy, NY 12180, USA. glawrence@usgs.gov Y1 - 2000/04/05/ PY - 2000 DA - 2000 Apr 05 SP - 87 EP - 99 VL - 248 IS - 2-3 SN - 0048-9697, 0048-9697 KW - Air Pollutants KW - 0 KW - Nitrogen KW - N762921K75 KW - Index Medicus KW - Mississippi KW - Nitrogen -- analysis KW - Air Pollutants -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71094132?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Science+of+the+total+environment&rft.atitle=Atmospheric+nitrogen+in+the+Mississippi+River+Basin--emissions%2C+deposition+and+transport.&rft.au=Lawrence%2C+G+B%3BGoolsby%2C+D+A%3BBattaglin%2C+W+A%3BStensland%2C+G+J&rft.aulast=Lawrence&rft.aufirst=G&rft.date=2000-04-05&rft.volume=248&rft.issue=2-3&rft.spage=87&rft.isbn=&rft.btitle=&rft.title=The+Science+of+the+total+environment&rft.issn=00489697&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-08 N1 - Date created - 2000-06-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Occurrence and load of selected herbicides and metabolites in the lower Mississippi River. AN - 71094045; 10805231 AB - Analyses of water samples collected from the Mississippi River at Baton Rouge, Louisiana, during 1991-1997 indicate that hundreds of metric tons of herbicides and herbicide metabolites are being discharged annually to the Gulf of Mexico. Atrazine, metolachlor, and the ethane-sulfonic acid metabolite of alachlor (alachlor ESA) were the most frequently detected herbicides and, in general, were present in the largest concentrations. Almost 80% of the annual herbicide load to the Gulf of Mexico occurred during the growing season from May to August. The concentrations and loads of alachlor in the Mississippi River decreased dramatically after 1993 in response to decreased use in the basin. In contrast, the concentrations and loads of acetochlor increased after 1994, reflecting its role as a replacement for alachlor. The peak annual herbicide load occurred in 1993, when approximately 640 metric tons (t) of atrazine, 320 t of cyanazine, 215 t of metolachlor, 53 t of simazine, and 50 t of alachlor were discharged to the Gulf of Mexico. The annual loads of atrazine and cyanazine were generally 1-2% of the amount annually applied in the Mississippi River drainage basin; the annual loads of acetochlor, alachlor, and metolachlor were generally less than 1%. Despite a reduction in atrazine use, historical data do not indicate a long-term downward trend in the atrazine load to the Gulf of Mexico. Although a relation (r2 = 0.62) exists between the atrazine load and stream discharge during May to August, variations in herbicide use and rainfall patterns within subbasins can have a large effect on herbicide loads in the Mississippi River Basin and probably explain a large part of the annual variation in atrazine load to the Gulf of Mexico. JF - The Science of the total environment AU - Clark, G M AU - Goolsby, D A AD - U.S. Geological Survey, Boise, Idaho 83702, USA. gmclark@usgs.gov Y1 - 2000/04/05/ PY - 2000 DA - 2000 Apr 05 SP - 101 EP - 113 VL - 248 IS - 2-3 SN - 0048-9697, 0048-9697 KW - Acetamides KW - 0 KW - Herbicides KW - Toluidines KW - Triazines KW - Water Pollutants, Chemical KW - alachlor KW - 24S2S61PXL KW - acetochlor KW - 8L08WMO94K KW - Atrazine KW - QJA9M5H4IM KW - cyanazine KW - W34C4P18WD KW - metolachlor KW - X0I01K05X2 KW - Index Medicus KW - Toluidines -- analysis KW - Triazines -- analysis KW - Mexico KW - Acetamides -- analysis KW - Mississippi KW - Atrazine -- analysis KW - Atrazine -- metabolism KW - Longitudinal Studies KW - Herbicides -- metabolism KW - Fresh Water -- chemistry KW - Water Pollutants, Chemical -- analysis KW - Herbicides -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71094045?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Science+of+the+total+environment&rft.atitle=Occurrence+and+load+of+selected+herbicides+and+metabolites+in+the+lower+Mississippi+River.&rft.au=Clark%2C+G+M%3BGoolsby%2C+D+A&rft.aulast=Clark&rft.aufirst=G&rft.date=2000-04-05&rft.volume=248&rft.issue=2-3&rft.spage=101&rft.isbn=&rft.btitle=&rft.title=The+Science+of+the+total+environment&rft.issn=00489697&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-08 N1 - Date created - 2000-06-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Changes in herbicide concentrations in Midwestern streams in relation to changes in use, 1989-1998. AN - 71092864; 10805244 AB - Water samples were collected from Midwestern streams in 1994-1995 and 1998 as part of a study to help determine if changes in herbicide use resulted in changes in herbicide concentrations since a previous reconnaissance study in 1989-1990. Sites were sampled during the first significant runoff period after the application of pre-emergent herbicides in 1989-1990, 1994-1995, and 1998. Samples were analyzed for selected herbicides, two atrazine metabolites, three cyanazine metabolites, and one alachlor metabolite. In the Midwestern USA, alachlor use was much greater in 1989 than in 1995, whereas acetochlor was not used in 1989 but was commonly used in 1995. The use of atrazine, cyanazine, and metolachlor was approximately the same in 1989 and 1995. The median concentrations of atrazine, alachlor, cyanazine, and metolachlor were substantially higher in 1989-1990 than in 1994-1995 or 1998. The median acetochlor concentration was higher in 1998 than in 1994 or 1995. JF - The Science of the total environment AU - Scribner, E A AU - Battaglin, W A AU - Goolsby, D A AU - Thurman, E M AD - U.S. Geological Survey, Lawrence, KS 66049, USA. scribner@usgs.gov Y1 - 2000/04/05/ PY - 2000 DA - 2000 Apr 05 SP - 255 EP - 263 VL - 248 IS - 2-3 SN - 0048-9697, 0048-9697 KW - Acetamides KW - 0 KW - Herbicides KW - Triazines KW - Water Pollutants, Chemical KW - alachlor KW - 24S2S61PXL KW - Atrazine KW - QJA9M5H4IM KW - cyanazine KW - W34C4P18WD KW - metolachlor KW - X0I01K05X2 KW - Index Medicus KW - Triazines -- analysis KW - Acetamides -- analysis KW - Atrazine -- analysis KW - Midwestern United States KW - Longitudinal Studies KW - Fresh Water -- chemistry KW - Water Pollutants, Chemical -- analysis KW - Herbicides -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71092864?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Science+of+the+total+environment&rft.atitle=Changes+in+herbicide+concentrations+in+Midwestern+streams+in+relation+to+changes+in+use%2C+1989-1998.&rft.au=Scribner%2C+E+A%3BBattaglin%2C+W+A%3BGoolsby%2C+D+A%3BThurman%2C+E+M&rft.aulast=Scribner&rft.aufirst=E&rft.date=2000-04-05&rft.volume=248&rft.issue=2-3&rft.spage=255&rft.isbn=&rft.btitle=&rft.title=The+Science+of+the+total+environment&rft.issn=00489697&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-08 N1 - Date created - 2000-06-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Pesticides in the atmosphere of the Mississippi River Valley, part II--air. AN - 71087324; 10805241 AB - Weekly composite air samples were collected from early April through to mid-September 1995 at three paired urban and agricultural sites along the Mississippi River region of the Midwestern United States. The paired sampling sites were located in Mississippi, Iowa, and Minnesota. A background site, removed from dense urban and agricultural areas, was located on the shore of Lake Superior in Michigan. Each sample was analyzed for 49 compounds; of these, 21 of 26 herbicides, 13 of 19 insecticides, and 4 of 4 related transformation products were detected during the study, with most pesticides detected in more than one sample. The maximum number of pesticides detected in an air sample was 18. Herbicides were the predominant type of pesticide detected at every site. Detection frequencies of most herbicides were similar at the urban and agricultural sites in Iowa and Minnesota. In Mississippi, herbicides generally were detected more frequently at the agricultural site. The insecticides chlorpyrifos, diazinon, and carbaryl, which are used in agricultural and non-agricultural settings, were detected more frequently in urban sites than agricultural sites in Mississippi and Iowa. Methyl parathion was detected in 70% of the samples from the Mississippi agricultural site and at the highest concentration (62 ng/m3 air) of any insecticide measured in the study. At the background site, dacthal (100%), atrazine (35%), cyanazine (22%), and the (primarily atrazine) triazine transformation products CIAT (35%) and CEAT (17%) were detected most frequently, suggesting their potential for long-range atmospheric transport. JF - The Science of the total environment AU - Foreman, W T AU - Majewski, M S AU - Goolsby, D A AU - Wiebe, F W AU - Coupe, R H AD - US Geological Survey, Water Resources Division, National Water Quality Laboratory, Denver, CO 80225-0046, USA. wforeman@usgs.gov Y1 - 2000/04/05/ PY - 2000 DA - 2000 Apr 05 SP - 213 EP - 226 VL - 248 IS - 2-3 SN - 0048-9697, 0048-9697 KW - Air Pollutants KW - 0 KW - Herbicides KW - Insecticides KW - Pesticides KW - Index Medicus KW - Agriculture KW - Cities KW - Herbicides -- analysis KW - Seasons KW - Mississippi KW - Chemical Precipitation KW - Midwestern United States KW - Insecticides -- analysis KW - Environmental Monitoring -- methods KW - Pesticides -- analysis KW - Air Pollutants -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71087324?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Science+of+the+total+environment&rft.atitle=Pesticides+in+the+atmosphere+of+the+Mississippi+River+Valley%2C+part+II--air.&rft.au=Foreman%2C+W+T%3BMajewski%2C+M+S%3BGoolsby%2C+D+A%3BWiebe%2C+F+W%3BCoupe%2C+R+H&rft.aulast=Foreman&rft.aufirst=W&rft.date=2000-04-05&rft.volume=248&rft.issue=2-3&rft.spage=213&rft.isbn=&rft.btitle=&rft.title=The+Science+of+the+total+environment&rft.issn=00489697&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-06-08 N1 - Date created - 2000-06-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Determination of chloroacetanilide herbicide metabolites in water using high-performance liquid chromatography-diode array detection and high-performance liquid chromatography/mass spectrometry AN - 17599110; 4715361 AB - Analytical methods using high-performance liquid chromatography-diode array detection (HPLC-DAD) and high-performance liquid chromatography/mass spectrometry (HPLC/MS) were developed for the analysis of the following chloroacetanilide herbicide metabolites in water: alachlor ethanesulfonic acid (ESA); alachlor oxanilic acid; acetochlor ESA; acetochlor oxanilic acid; metolachlor ESA; and metolachlor oxanilic acid. Good precision and accuracy were demonstrated for both the HPLC-DAD and HPLC/MS methods in reagent water, surface water, and ground water. The average HPLC-DAD recoveries of the chloroacetanilide herbicide metabolites from water samples spiked at 0.25, 0.5 and 2.0 mu g/l ranged from 84 to 112%, with relative standard deviations of 18% or less. The average HPLC/MS recoveries of the metabolites from water samples spiked at 0.05, 0.2 and 2.0 mu g/l ranged from 81 to 118%, with relative standard deviations of 20% or less. The limit of quantitation (LOQ) for all metabolites using the HPLC-DAD method was 0.20 mu g/l, whereas the LOQ using the HPLC/MS method was at 0.05 mu g/l. These metabolite-determination methods are valuable for acquiring information about water quality and the fate and transport of the parent chloroacetanilide herbicides in water. JF - Science of the Total Environment AU - Hostetler, KA AU - Thurman, E M AD - U.S. Geological Survey, 4821 Quail Crest Place, Lawrence, KS 66049, USA, ethurman@usgs.gov Y1 - 2000/04/05/ PY - 2000 DA - 2000 Apr 05 SP - 147 EP - 155 VL - 248 IS - 2-3 SN - 0048-9697, 0048-9697 KW - alachlor KW - chloroacetanilide KW - metolachlor KW - Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Mass Spectrometry KW - Statistics KW - Water sampling KW - Path of Pollutants KW - Surface water KW - Chromatographic techniques KW - Mass spectrometry KW - Metabolites KW - Water analysis KW - Quantitative Analysis KW - Organic Acids KW - Chromatography KW - Fate of Pollutants KW - Herbicides KW - Pollutant identification KW - Analytical Methods KW - Liquid chromatography KW - Precision KW - Analytical techniques KW - Groundwater pollution KW - Sampling methods KW - SW 5010:Network design KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - Q5 08502:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17599110?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+of+the+Total+Environment&rft.atitle=Determination+of+chloroacetanilide+herbicide+metabolites+in+water+using+high-performance+liquid+chromatography-diode+array+detection+and+high-performance+liquid+chromatography%2Fmass+spectrometry&rft.au=Hostetler%2C+KA%3BThurman%2C+E+M&rft.aulast=Hostetler&rft.aufirst=KA&rft.date=2000-04-05&rft.volume=248&rft.issue=2-3&rft.spage=147&rft.isbn=&rft.btitle=&rft.title=Science+of+the+Total+Environment&rft.issn=00489697&rft_id=info:doi/10.1016%2FS0048-9697%2899%2900538-0 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special issue: Fate and transport of agricultural chemicals in the Mississippi River Basin. N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Chromatographic techniques; Analytical techniques; Herbicides; Pollutant identification; Water analysis; Water sampling; Surface water; Liquid chromatography; Groundwater pollution; Mass spectrometry; Metabolites; Sampling methods; Mass Spectrometry; Statistics; Organic Acids; Path of Pollutants; Analytical Methods; Chromatography; Fate of Pollutants; Precision; Quantitative Analysis DO - http://dx.doi.org/10.1016/S0048-9697(99)00538-0 ER - TY - JOUR T1 - Toxicity of manganese to Ceriodaphnia dubia and Hyalella azteca. AN - 70899848; 10667926 AB - Manganese is a toxic element frequently overlooked when assessing toxicity of effluents, sediments, and pore waters. Manganese can be present at toxic levels in anoxic solutions due to increased solubility under chemically reducing conditions, and it can remain at those levels for days in aerated test waters due to slow precipitation kinetics. Ceriodaphnia dubia and Hyalella azteca are freshwater organisms often used for toxicity testing and recommended for assessments of effluents and pore waters. Lethal and reproductive-inhibition concentrations of Mn were determined for C. dubia in acute 48-h tests and chronic three-brood tests using animals <24 h old and between 24 and 48 h old. Sensitivity of H. azteca to Mn was determined with 7-day-old animals in acute 96-h tests. Tests were run at three levels of water hardness to assess the amelioratory effect, which was often significant. Manganese concentrations were measured analytically at test initiation and after 96 h for calculation of toxicity and determination of Mn precipitation during the tests. Minimal amounts of Mn (0.95), yielding precise estimates of avian abundance. We consider problems with the approach and recommend possible solutions, including restriction of the approach to fixed-radius counts to reduce the effect of variation in the effective radius of detection among various observers and to provide a basis for using spatial sampling to estimate bird abundance on large areas of interest. We believe that most questions meriting the effort required to carry out point counts also merit serious attempts to estimate detection probabilities associated with the counts. The double-observer approach is a method that can be used for this purpose. JF - Auk AU - Nichols, J D AU - Hines, JE AU - Sauer, J R AU - Fallon, F W AU - Fallon, JE AU - Heglund, P J AD - U.S. Geological Survey, Biological Resources Division, Patuxent Wildlife Research Center, Laurel, MD 20708, USA, jim_nichols@usgs.gov Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 393 EP - 408 PB - [URL:http://journals.allenpress.com/jrnlserv/?request=get-abstract &issn=0004-8038&volume=117&page=393] VL - 117 IS - 2 SN - 0004-8038, 0004-8038 KW - Birds KW - Ecology Abstracts KW - Aves KW - Population studies KW - Data acquisition KW - Methodology KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17636014?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Auk&rft.atitle=A+double-observer+approach+for+estimating+detection+probability+and+abundance+from+point+counts&rft.au=Nichols%2C+J+D%3BHines%2C+JE%3BSauer%2C+J+R%3BFallon%2C+F+W%3BFallon%2C+JE%3BHeglund%2C+P+J&rft.aulast=Nichols&rft.aufirst=J&rft.date=2000-04-01&rft.volume=117&rft.issue=2&rft.spage=393&rft.isbn=&rft.btitle=&rft.title=Auk&rft.issn=00048038&rft_id=info:doi/10.1043%2F0004-8038%282000%29117%280393%3AADOAFE%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; Population studies; Data acquisition; Methodology DO - http://dx.doi.org/10.1043/0004-8038(2000)117(0393:ADOAFE)2.0.CO;2 ER - TY - JOUR T1 - The Natural Imperative for Biological Conservation AN - 17614332; 4753443 AB - To contribute significantly to environmental policy of the next century, conservationists will need to reach a consensus on their fundamental values and goals and to persuade society to adopt them. Resolution of the debate over the continued role of naturalness as a guiding concept has important implications for how conservation is practiced and the future of the discipline. I examine five aspects of naturalness in the context of biological conservation: (1) its utility, (2) its assessment, (3) its relation to values and ethics, (4) alternative imperatives, and (5) implications of adopting it as a guiding concept. Naturalness can be viewed as a continuous gradient with completely natural and completely artificial extremes. Human actions are unnatural to the extent that they rely on technology to transform natural ecosystems. The ecological consequences of technological transformation often overwhelm the capacity of other biota to adapt and are a root cause of biodiversity loss. The naturalness of most ecosystems or ecosystem alterations can be assessed objectively despite imperfect knowledge if evolutionary limits and natural ranges of variability are carefully considered. Most conservationists value naturally evolved biotic elements such as genomes and communities over artificial elements. This judgment, which is not shared by society at large, is based on intrinsic and instrumental values, including respect for nature and recognition that many ecosystem amenities stem from natural processes. Given the wide accessibility of ecologically destructive technology, fundamental shifts in societal values and approaches to ecosystem alteration are needed to achieve conservation. Respect for nature must supplant the prevailing world view of human superiority. Although sometimes difficult to assess, naturalness is a more reasonable guide for conservation than are other ecosystem features such as diversity, productivity, or evolution, and naturalness is the foundation for several current conservation concepts such as ecological integrity and ecological restoration. Conservation biologists can help develop conservation practices and ethics that emphasize the importance of natural ecosystems. Key roles include refining distinctions between natural and anthropogenic conditions, devising ways to use ecosystems without losing biotic diversity, and facilitating shifts in societal values toward more respect for nature. JF - Conservation Biology AU - Angermeier, L P AD - United States Geological Survey, Virginia Cooperative Fish and Wildlife Research Unit, Department of Fisheries and Wildlife Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0321, U.S.A., biota@vt.edu Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 373 EP - 381 PB - Blackwell Science Ltd VL - 14 IS - 2 SN - 0888-8892, 0888-8892 KW - Ecology Abstracts KW - Conservation KW - Environmental perception KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17614332?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Conservation+Biology&rft.atitle=The+Natural+Imperative+for+Biological+Conservation&rft.au=Angermeier%2C+L+P&rft.aulast=Angermeier&rft.aufirst=L&rft.date=2000-04-01&rft.volume=14&rft.issue=2&rft.spage=373&rft.isbn=&rft.btitle=&rft.title=Conservation+Biology&rft.issn=08888892&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Conservation; Environmental perception ER - TY - JOUR T1 - Applying Metapopulation Theory to Conservation of Migratory Birds AN - 17613000; 4753442 AB - Metapopulation theory has proven useful for understanding the population structure and dynamics of many species of conservation concern. The metapopulation concept has been applied almost exclusively to nonmigratory species, however, for which subpopulation demographic independence--a requirement for a classically defined metapopulation--is explicitly related to geographic distribution and dispersal probabilities. Defining the degree of demographic independence among subpopulations of migratory animals, and thus the applicability of metapopulation theory as a conceptual framework for understanding population dynamics, is much more difficult. Unlike nonmigratory species, subpopulations of migratory animals cannot be defined as synonymous with geographic areas. Groups of migratory birds that are geographically separate at one part of the annual cycle may occur together at others, but co-occurrence in time and space does not preclude the demographic independence of subpopulations. I suggest that metapopulation theory can be applied to migratory species but that understanding the degree of subpopulation independence may require information about both spatial distribution throughout the annual cycle and behavioral mechanisms that may lead to subpopulation demographic independence. The key for applying metapopulation theory to migratory animals lies in identifying demographically independent subpopulations, even as they move during the annual cycle and potentially co-occur with other subpopulations. Using examples of migratory bird species, I demonstrate that spatial and temporal modes of subpopulation independence can interact with behavioral mechanisms to create demographically independent subpopulations, including cases in which subpopulations are not spatially distinct in some parts of the annual cycle. JF - Conservation Biology AU - Esler, D AD - Alaska Biological Science Center, U.S. Geological Survey, 1011 E. Tudor Road, Anchorage, AK 99503, U.S.A., daniel_esler@usgs.gov Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 366 EP - 372 PB - Blackwell Science Ltd VL - 14 IS - 2 SN - 0888-8892, 0888-8892 KW - Birds KW - Ecology Abstracts KW - Aves KW - Conservation KW - Migration KW - Metapopulations KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17613000?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Conservation+Biology&rft.atitle=Applying+Metapopulation+Theory+to+Conservation+of+Migratory+Birds&rft.au=Esler%2C+D&rft.aulast=Esler&rft.aufirst=D&rft.date=2000-04-01&rft.volume=14&rft.issue=2&rft.spage=366&rft.isbn=&rft.btitle=&rft.title=Conservation+Biology&rft.issn=08888892&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; Migration; Metapopulations; Conservation ER - TY - JOUR T1 - Reactive Uptake of Trace Metals in the Hyperheic Zone of a Mining-Contaminated Stream, Pinal Creek, Arizona AN - 17605058; 4727407 AB - Significant uptake of dissolved metals occurred by interaction of groundwater and surface water with hyporheic-zone sediments during transport in Pinal Creek, AZ. The extent of trace metal uptake was calculated by mass balance measurements made directly within the hyporheic zone. A conservative solute tracer injected into the stream was used to quantify hydrologic exchange with the stream and groundwater. Fractional reactive uptake of dissolved metals entering the hyporheic zone was determined at 29 sites and averaged 52 plus or minus 25, 27 plus or minus 19, and 36 plus or minus 24% for Co, Ni, and Zn, compared with Mn uptake of 22 plus or minus 19%. First-order rate constants ( lambda sub(h)) of metal uptake in the hyporheic zone were determined at seven sites using the exchange rate of water derived from tracer arrival in the streambed. Reaction-time constants (1/ lambda sub(h)) averaged 0.41, 0.84, and 0.38 h for Co, Ni, and Zn, respectively, and 1.3 h for Mn. In laboratory experiments with streambed sediments, metal uptake increased with preexisting Mn oxide concentration, supporting our interpretation that Mn oxides in the hyporheic zone enhance trace metal uptake. Reach-scale mass-balance calculations that include groundwater metal inputs indicated that decreases in metal loads ranged from 12 to 68% over the 7-km perennial reach depending on the metal. The decreases in metal loads are attributed to uptake of trace metals by Mn oxides in the hyporheic zone that is enhanced because of ongoing Mn oxide formation. Analysis of dissolved-metal streambed profiles and conservative solute tracers provide a valuable tool for quantifying metal uptake or release in the hyporheic zone of contaminated streams. JF - Environmental Science & Technology AU - Fuller, C C AU - Harvey, J W AD - U.S. Geological Survey, Menlo Park, CA, USA, ccfuller@usgs.gov Y1 - 2000/04/01/ PY - 2000 DA - 2000 Apr 01 SP - 1150 EP - 1155 VL - 34 IS - 7 SN - 0013-936X, 0013-936X KW - USA, Arizona, Pinal Creek KW - hyporheic zone KW - Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Trace-metal KW - Streambeds KW - Sediment KW - Surface Water KW - Freshwater KW - Mine tailings KW - Sediments KW - Trace Metals KW - Bioaccumulation KW - Zinc KW - Groundwater (see also Aquifers) KW - Surface water (see also Lakes, Ponds, Streams) KW - Hydrology KW - Groundwater pollution KW - Groundwater KW - Trace metals KW - Drainage water KW - AQ 00001:Water Resources and Supplies KW - Q5 08503:Characteristics, behavior and fate KW - SW 3070:Water quality control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17605058?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Reactive+Uptake+of+Trace+Metals+in+the+Hyperheic+Zone+of+a+Mining-Contaminated+Stream%2C+Pinal+Creek%2C+Arizona&rft.au=Fuller%2C+C+C%3BHarvey%2C+J+W&rft.aulast=Fuller&rft.aufirst=C&rft.date=2000-04-01&rft.volume=34&rft.issue=7&rft.spage=1150&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes990714d LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Bioaccumulation; Groundwater pollution; Hydrology; Mine tailings; Drainage water; Trace metals; Trace-metal; Zinc; Surface water (see also Lakes, Ponds, Streams); Groundwater (see also Aquifers); Sediment; Trace Metals; Streambeds; Surface Water; Groundwater; Sediments; Freshwater DO - http://dx.doi.org/10.1021/es990714d ER - TY - JOUR T1 - Nutrients in Groundwaters of the Conterminous United States, 1992-1995 AN - 17602999; 4727408 AB - Results of a national water quality assessment indicate that nitrate is detected in 71% of groundwater samples, more than 13 times as often as ammonia, nitrite, organic nitrogen, and orthophosphate, based on a common detection threshold of 0.2 mg/L. Shallow groundwater (typically 5 m deep or less) beneath agricultural land has the highest median nitrate concentration (3.4 mg/L), followed by shallow groundwater beneath urban land (1.6 mg/L) and deeper groundwater in major aquifers (0.48 mg/L). Nitrate exceeds the maximum contaminant level, 10 mg/L as nitrogen, in more than 15% of groundwater samples from 4 of 33 major aquifers commonly used as a source of drinking water. Nitrate concentration in groundwater is variable and depends on interactions among several factors, including nitrogen loading, soil type, aquifer permeability, recharge rate, and climate. For a given nitrogen loading, factors that generally increase nitrate concentration in groundwater include well-drained soils, fractured bedrock, and irrigation. Factors that mitigate nitrate contamination of groundwater include poorly drained soils, greater depth to groundwater, artificial drainage systems, intervening layers of unfractured bedrock, a low rate of groundwater recharge, and anaerobic conditions in aquifers. JF - Environmental Science & Technology AU - Nolan, B T AU - Stoner, J D AD - U.S. Geological Survey, 413 National Center, Reston, VA 20192, USA, btnolan@usgs.gov Y1 - 2000/04/01/ PY - 2000 DA - 2000 Apr 01 SP - 1156 EP - 1165 VL - 34 IS - 7 SN - 0013-936X, 0013-936X KW - USA KW - Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Agriculture KW - Aquifers KW - Water supplies (Potable) KW - Nitrate KW - Contamination KW - Agricultural pollution KW - Groundwater Pollution KW - Nutrients KW - Freshwater KW - Water quality KW - Nitrogen Compounds KW - Drinking Water KW - Irrigation (see also Land treatment) KW - Recharge KW - Nitrates KW - Ammonia KW - Irrigation KW - Water Quality KW - Pollution surveys KW - Pollution (Groundwater) KW - Groundwater pollution KW - Contamination (see also Pollution) KW - Nutrients (mineral) KW - Nitrogen compounds KW - Groundwater Recharge KW - Water quality (Natural waters) KW - Q5 08503:Characteristics, behavior and fate KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17602999?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Nutrients+in+Groundwaters+of+the+Conterminous+United+States%2C+1992-1995&rft.au=Nolan%2C+B+T%3BStoner%2C+J+D&rft.aulast=Nolan&rft.aufirst=B&rft.date=2000-04-01&rft.volume=34&rft.issue=7&rft.spage=1156&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes9907663 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Nitrates; Agricultural pollution; Groundwater pollution; Nutrients (mineral); Water quality; Pollution surveys; Recharge; Water supplies (Potable); Aquifers; Agriculture; Pollution (Groundwater); Nitrate; Ammonia; Irrigation (see also Land treatment); Contamination (see also Pollution); Nutrients; Nitrogen compounds; Water quality (Natural waters); Nitrogen Compounds; Drinking Water; Contamination; Irrigation; Water Quality; Groundwater Pollution; Groundwater Recharge; Freshwater DO - http://dx.doi.org/10.1021/es9907663 ER - TY - JOUR T1 - An organized signal in snowmelt runoff over the western United States AN - 17600030; 4718387 AB - Daily-to-weekly discharge during the snowmelt season is highly correlated among river basins in the upper elevations of the central and southern Sierra Nevada (Carson, Walker, Tuolumne, Merced, San Joaquin, Kings, and Kern Rivers). In many cases, the upper Sierra Nevada watershed operates in a single mode (with varying catchment amplitudes). In some years, with appropriate lags, this mode extends to distant mountains. A reason for this coherence is the broad scale nature of synoptic features in atmospheric circulation, which provide anomalous insolation and temperature forcings that span a large region, sometimes the entire western U.S. These correlations may fall off dramatically, however, in dry years when the snowpack is spatially patchy. JF - Journal of the American Water Resources Association AU - Peterson, D H AU - Smith, R E AU - Dettinger, MD AU - Cayan AU - Riddle, L AD - U.S. Geological Survey, 345 Middlefield Road, MS 496, Bldg. 15, Menlo Park, California 94025, USA, dhpete@usgs.gov Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 421 EP - 432 VL - 36 IS - 2 SN - 1093-474X, 1093-474X KW - USA KW - USA, Western KW - snowmelt KW - Aqualine Abstracts; Pollution Abstracts; Water Resources Abstracts KW - Flow Measurement (see also Gauges, Gauging meters) KW - Snowpack KW - River Basins KW - Melt waters KW - Temperature KW - River basins KW - Snow cover KW - Catchment areas KW - Snowmelt KW - Discharge Measurement KW - Runoff KW - AQ 00001:Water Resources and Supplies KW - SW 0835:Streamflow and runoff KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17600030?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=An+organized+signal+in+snowmelt+runoff+over+the+western+United+States&rft.au=Peterson%2C+D+H%3BSmith%2C+R+E%3BDettinger%2C+MD%3BCayan%3BRiddle%2C+L&rft.aulast=Peterson&rft.aufirst=D&rft.date=2000-04-01&rft.volume=36&rft.issue=2&rft.spage=421&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Snowmelt; Runoff; River Basins; Snowpack; Discharge Measurement; USA; Melt waters; Catchment areas; Snow cover; Flow Measurement (see also Gauges, Gauging meters); Temperature; River basins ER - TY - JOUR T1 - The vulnerability of wetlands to climate change: a hydrologic landscape perspective AN - 17599992; 4718378 AB - The vulnerability of wetlands to changes in climate depends on their position within hydrologic landscapes. Hydrologic landscapes are defined by the flow characteristics of ground water and surface water and by the interaction of atmospheric water, surface water, and ground water for any given locality or region. Six general hydrologic landscapes are defined; mountainous, plateau and high plain, broad basins of interior drainage, riverine, flat coastal, and hummocky glacial and dune. Assessment of these landscapes indicate that the vulnerability of all wetlands to climate change fall between two extremes: those dependent primarily on precipitation for their water supply are highly vulnerable, and those dependent primarily on discharge from regional ground water flow systems are the least vulnerable, because of the great buffering capacity of large ground water flow systems to climate change. JF - Journal of the American Water Resources Association AU - Winter, T C AD - U.S. Geological Survey, Mail Stop 413, Denver Federal Center, Lakewood, Colorado 80225, USA, tcwinter@usgs.gov Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 305 EP - 312 VL - 36 IS - 2 SN - 1093-474X, 1093-474X KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - Precipitation (Atmospheric) KW - Landforms KW - Water budget KW - Climate KW - Climatic changes KW - Water Supply KW - Hydrologic Budget KW - Precipitation KW - Water supplies KW - Water balance KW - Geomorphology KW - Surface-groundwater Relations KW - Climatic Changes KW - Hydrology KW - Wetlands KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General KW - Q2 09171:Dynamics of lakes and rivers KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17599992?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=The+vulnerability+of+wetlands+to+climate+change%3A+a+hydrologic+landscape+perspective&rft.au=Winter%2C+T+C&rft.aulast=Winter&rft.aufirst=T&rft.date=2000-04-01&rft.volume=36&rft.issue=2&rft.spage=305&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Geomorphology; Landforms; Water budget; Climatic changes; Hydrology; Wetlands; Water balance; Precipitation (Atmospheric); Climate; Water supplies; Surface-groundwater Relations; Water Supply; Hydrologic Budget; Climatic Changes; Precipitation ER - TY - JOUR T1 - A comparison of delta change and downscaled GCM scenarios for three mountainous basins in the United States AN - 17599137; 4718385 AB - Simulated daily precipitation, temperature, and runoff time series were compared in three mountainous basins in the United States: (1) the Animas River basin in Colorado, (2) the East Fork of the Carson River basin in Nevada and California, and (3) the Cle Elum River basin in Washington State. Two methods of climate scenario generation were compared: delta change and statistical downscaling. The delta change method uses differences between simulated current and future climate conditions from the Hadley Centre for Climate Prediction and Research (HadCM2) General Circulation Model (GCM) added to observed time series of climate variables. A statistical downscaling (SDS) model was developed for each basin using station data and output from the National Center for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) reanalysis regridded to the scale of HadCM2. The SDS model was then used to simulate local climate variables using HadCM2 output for current and future conditions. Surface climate variables from each scenario were used in a precipitation-runoff model. Results from this study show that, in the basins tested, a precipitation-runoff model can simulate realistic runoff series for current conditions using statistically downscaled NCEP output. But, use of downscaled HadCM2 output for current or future climate assessments are questionable because the GCM does not produce accurate estimates of the surface variables needed for runoff in these regions. Given the uncertainties in the GCMs ability to simulate current conditions based on either the delta change or downscaling approaches, future climate assessments based on either of these approaches must be treated with caution. JF - Journal of the American Water Resources Association AU - Hay, LE AU - Wilby, R L AU - Leavesley, G H AD - U.S. Geological Survey, Box 25046, MS 412, Denver Federal Center, Denver, Colorado 80225, USA, lhay@usgs.gov Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 387 EP - 398 VL - 36 IS - 2 SN - 1093-474X, 1093-474X KW - USA KW - Aqualine Abstracts; Water Resources Abstracts KW - River Basins KW - Precipitation (Atmospheric) KW - Rainfall-runoff Relationships KW - Temperature KW - Precipitation KW - Mountains KW - Catchment areas KW - Climatic Changes KW - Runoff KW - Rainfall/runoff relationship KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17599137?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=A+comparison+of+delta+change+and+downscaled+GCM+scenarios+for+three+mountainous+basins+in+the+United+States&rft.au=Hay%2C+LE%3BWilby%2C+R+L%3BLeavesley%2C+G+H&rft.aulast=Hay&rft.aufirst=LE&rft.date=2000-04-01&rft.volume=36&rft.issue=2&rft.spage=387&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Mountains; Precipitation; Temperature; Runoff; River Basins; Climatic Changes; Rainfall-runoff Relationships; USA; Precipitation (Atmospheric); Catchment areas; Rainfall/runoff relationship ER - TY - JOUR T1 - Potential effects of climate change on surface-water quality in North America AN - 17598808; 4718382 AB - Data from long-term ecosystem monitoring and research stations in North America and results of simulations made with interpretive models indicate that changes in climate (precipitation and temperature) can have a significant effect on the quality of surface waters. Changes in water quality during storms, snowmelt, and periods of elevated air temperature or drought can cause conditions that exceed thresholds of ecosystem tolerance and, thus, lead to water-quality degradation. If warming and changes in available moisture occur, water-quality changes will likely first occur during episodes of climate-induced stress, and in ecosystems where the factors controlling water quality are sensitive to climate variability. Continued climate stress would increase the frequency with which ecosystem thresholds are exceeded and thus lead to chronic water-quality changes. Management strategies in a warmer climate will therefore be needed that are based on local ecological thresholds rather than annual median condition. Changes in land use alter biological, physical, and chemical processes in watersheds and thus significantly alter the quality of adjacent surface waters; these direct human-caused changes complicate the interpretation of water-quality changes resulting from changes in climate, and can be both mitigated and exacerbated by climate change. A rigorous strategy for integrated, long-term monitoring of the ecological and human factors that control water quality is necessary to differentiate between actual and perceived climate effects, and to track the effectiveness of our environmental policies. JF - Journal of the American Water Resources Association AU - Murdoch, P S AU - Baron, J S AU - Miller, T L AD - U.S. Geological Survey, 425 Jordan Road, Troy, New York 12180, USA, pmurdoch@usgs.gov Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 347 EP - 366 VL - 36 IS - 2 SN - 1093-474X, 1093-474X KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - Land Use KW - North America KW - Surface water KW - Climate KW - Climatic changes KW - Water Quality KW - Temperature KW - Surface Water KW - Drought KW - Water quality KW - Storms KW - Land use KW - Surface water (see also Lakes, Ponds, Streams) KW - Climatic Changes KW - Water quality (Natural waters) KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General KW - Q2 09241:General KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17598808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Potential+effects+of+climate+change+on+surface-water+quality+in+North+America&rft.au=Murdoch%2C+P+S%3BBaron%2C+J+S%3BMiller%2C+T+L&rft.aulast=Murdoch&rft.aufirst=P&rft.date=2000-04-01&rft.volume=36&rft.issue=2&rft.spage=347&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Surface water; Climatic changes; Water quality; Climate; Temperature; Surface water (see also Lakes, Ponds, Streams); Drought; Storms; Land use; Water quality (Natural waters); Land Use; Water Quality; Climatic Changes; Surface Water; North America ER - TY - JOUR T1 - Assessment of the photoenhanced toxicity of weathered oil to the tidewater silverside AN - 17598080; 4703270 AB - Studies were conducted to determine the interactive toxicity of a water-accommodated fraction (WAF) of a weathered middle distillate petroleum and solar radiation to an estuarine organism, the tidewater silverside (Menidia beryllina). Juvenile silversides were monitored for survival and growth during a 7-d static renewal exposure to dilutions of WAFs of an environmentally weathered oil collected in the vicinity of an abandoned oil field in California. Ultraviolet (UV) treatments were based on incident sunlight intensity and spectra measured at this site. Exposure to UV alone was not lethal to the fish, and WAF in the absence of UV was toxic at the highest total petroleum hydrocarbon (TPH) concentration (3.03 mg/L) after 96 h of exposure. Water-accommodated fractions toxicity increased significantly with increasing UV irradiance and duration of exposure. The 7-d LC50 concentrations for the control, low, medium, and high irradiance were 2.84, 1.27, 0.93, and 0.51 mg/L TPH, respectively. Significant mortality occurred among fish previously exposed to WAF in the absence of irradiance, whereas WAF toxicity was unaffected by UV exposure prior to the toxicity test. Thus, the mode of action is a photosensitization of the accumulated petroleum residue rather than a photoactivation of WAF. Chemical analysis indicates that the WAF contains limited amounts of polycyclic aromatic hydrocarbons (PAHs) known to be photoenhanced, suggesting that other constituents may be responsible for the observed photoenhanced toxicity. JF - Environmental Toxicology and Chemistry AU - Little, EE AU - Cleveland, L AU - Calfee, R AU - Barron, M G AD - U.S. Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, Missouri 65201, USA, edward_little@usgs.gov Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 926 EP - 932 VL - 19 IS - 4 SN - 0730-7268, 0730-7268 KW - Inland silverside KW - Menidia beryllina KW - Water Resources Abstracts; Toxicology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Water Pollution KW - Aquatic organisms KW - Chemical Analysis KW - Aquatic Animals KW - Pollution effects KW - Freshwater KW - Solar radiation KW - Toxicity tests KW - Phototoxicity KW - U.V. radiation KW - Radiation KW - Ecotoxicology KW - INE, USA, California KW - Petroleum KW - Ultraviolet radiation KW - Weathering KW - Oil Pollution KW - Polycyclic aromatic hydrocarbons KW - Oil and gas industry KW - Hydrocarbons KW - Estuaries KW - Brackish KW - Toxicity KW - Ultraviolet Radiation KW - Light effects KW - Oil fields KW - Toxicity testing KW - Indicator species KW - Petroleum hydrocarbons KW - X 24210:Radiation & radioactive materials KW - P 8000:RADIATION KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17598080?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Assessment+of+the+photoenhanced+toxicity+of+weathered+oil+to+the+tidewater+silverside&rft.au=Little%2C+EE%3BCleveland%2C+L%3BCalfee%2C+R%3BBarron%2C+M+G&rft.aulast=Little&rft.aufirst=EE&rft.date=2000-04-01&rft.volume=19&rft.issue=4&rft.spage=926&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Ecotoxicology; Ultraviolet radiation; Pollution effects; Weathering; Toxicity tests; Petroleum hydrocarbons; Indicator species; Light effects; Phototoxicity; Polycyclic aromatic hydrocarbons; U.V. radiation; Hydrocarbons; Oil and gas industry; Petroleum; Estuaries; Solar radiation; Aquatic organisms; Oil fields; Toxicity testing; Water Pollution; Radiation; Aquatic Animals; Chemical Analysis; Toxicity; Oil Pollution; Ultraviolet Radiation; INE, USA, California; Brackish; Freshwater ER - TY - JOUR T1 - Fractured-Aquifer Hydrogeology from Geophysical Logs: Brunswick Group and Lockatong Formation, Pennsylvania AN - 17597968; 4701486 AB - The Brunswick Group and the underlying Lockatong Formation are composed of lithified Mesozoic sediments that constitute part of the Newark Basin in southeastern Pennsylvania. These fractured rocks form an important regional aquifer that consists of gradational sequences of shale, siltstone, and sandstone, with fluid transport occurring primarily in fractures. An extensive suite of geophysical logs was obtained in seven wells located at the borough of Lansdale, Pennsylvania, in order to better characterize the areal hydrogeologic system and provide guidelines for the refinement of numerical ground water models. Six of the seven wells are approximately 120 m deep and the seventh extends to a depth of 335 m. Temperature, fluid conductivity, and flowmeter logs are used to locate zones of fluid exchange and to quantify transmissivities. Electrical resistivity and natural gamma logs together yield detailed stratigraphic information, and digital acoustic televiewer data provide magnetically oriented images of the borehole wall from which almost 900 fractures are identified. Analyses of the geophysical data indicate that the aquifer penetrated by the deep well can be separated into two distinct structural domains, which may, in turn, reflect different mechanical responses to basin extension by different sedimentary units: 1. In the shallow zone (above 125 m), the dominant fracture population consists of gently dipping bedding plane partings that strike N46 degree E and dip to the northwest at about 11 degrees. Fluid flow is concentrated in the upper 80 m along these subhorizontal fractures, with transmissivities rapidly diminishing in magnitude with depth. 2. The zone below 125 m marks the appearance of numerous high-angle fractures that are orthogonal to the bedding planes, striking parallel but dipping steeply southeast at 77 degrees. This secondary set of fractures is associated with a fairly thick (approximately 60 m) high-resistivity, low-transmissivity sandstone unit that is abruptly terminated by a thin shale bed at a depth of 190 m. This lower contact effectively delineates the aquifer's vertical extent at this location because no detectable evidence of ground water movement is found below it. Thus, fluid flow is controlled by fractures, but fracture type and orientation are related to lithology. Finally, a transient thermal-conduction model is successfully applied to simulate observed temperature logs, thereby confirming the effects of ground-surface warming that occurred in the area as a result of urbanization at the turn of the century. The systematic warming of the upper 120 m has increased the transmissivity of this aquifer by almost 10%, simply due to changes in fluid viscosity and density. JF - Ground Water AU - Morin, R H AU - Senior, LA AU - Decker, E R AD - U.S. Geological Survey, Denver, CO 80225, USA, rhmorin@usgs.gov Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 182 EP - 192 VL - 38 IS - 2 SN - 0017-467X, 0017-467X KW - USA, Pennsylvania, Lansdale KW - Aqualine Abstracts; Water Resources Abstracts KW - Geologic Fractures KW - Urbanization KW - Transmission KW - Fluid Flow KW - Logging (Recording) KW - Groundwater flow KW - Hydrogeology KW - Transmissivity KW - Sedimentary Rocks KW - Model Studies KW - Rock KW - Fluid dynamics KW - Geohydrology KW - Aquifer Characteristics KW - Groundwater Movement KW - Urban areas KW - AQ 00001:Water Resources and Supplies KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17597968?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Fractured-Aquifer+Hydrogeology+from+Geophysical+Logs%3A+Brunswick+Group+and+Lockatong+Formation%2C+Pennsylvania&rft.au=Morin%2C+R+H%3BSenior%2C+LA%3BDecker%2C+E+R&rft.aulast=Morin&rft.aufirst=R&rft.date=2000-04-01&rft.volume=38&rft.issue=2&rft.spage=182&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Geologic Fractures; Sedimentary Rocks; Transmissivity; Model Studies; Aquifer Characteristics; Geohydrology; Fluid Flow; Logging (Recording); Urbanization; Groundwater Movement; USA, Pennsylvania, Lansdale; Rock; Transmission; Hydrogeology; Fluid dynamics; Urban areas; Groundwater flow ER - TY - JOUR T1 - Plants As Indicators of Focused Ground Water Discharge to a Northern Minnesota Lake AN - 17597886; 4701497 AB - Determining the discharge of ground water to Shingobee Lake (66 ha), north-central Minnesota, is complicated by the presence of numerous springs situated adjacent to the lake and in the shallow portion of the lakebed. Springs first had to be located before these areas of more rapid discharge could be quantified. Two methods that rely on the distribution of aquatic plants are useful for locating springs. One method identifies areas of the near-shore lakebed where floating-leaf and emergent aquatic vegetation are absent. The second method uses the distribution of marsh marigold (Caltha palustris L.) to locate springs that discharge on land near the shoreline of the lake. Marsh marigold produces large (2 to 4 cm diameter) yellow flowers that provide a ready marker for locating ground water springs. Twice as many springs (38) were identified using this method as were identified using the lack of near-shore vegetation. A portable weir was used to measure discharge from onshore springs, and seepage meters were used to measure discharge from near-shore springs. Of the total 56.7 L s super(-1) that enters the lake from ground water, approximately 30% comes from onshore and near-shore springs. JF - Ground Water AU - Rosenberry, DO AU - Striegl, R G AU - Hudson, D C AD - U.S. Geological Survey, MS 413, Bldg. 53, DFC, Lakewood, CO 80225, USA, rosenber@usgs.gov Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 296 EP - 303 VL - 38 IS - 2 SN - 0017-467X, 0017-467X KW - USA, Minnesota, Shingobee L. KW - Aqualine Abstracts; Water Resources Abstracts KW - Weirs (see also Dams) KW - Springs KW - Groundwater Discharge KW - Indicators KW - Flow Discharge KW - Aquatic macrophytes (see also Individual groups) KW - Weirs KW - Aquatic Plants KW - Surface-groundwater Relations KW - Marsh Plants KW - AQ 00001:Water Resources and Supplies KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17597886?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Plants+As+Indicators+of+Focused+Ground+Water+Discharge+to+a+Northern+Minnesota+Lake&rft.au=Rosenberry%2C+DO%3BStriegl%2C+R+G%3BHudson%2C+D+C&rft.aulast=Rosenberry&rft.aufirst=DO&rft.date=2000-04-01&rft.volume=38&rft.issue=2&rft.spage=296&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Indicators; Groundwater Discharge; Surface-groundwater Relations; Weirs; Aquatic Plants; Springs; Marsh Plants; Flow Discharge; USA, Minnesota, Shingobee L.; Weirs (see also Dams); Aquatic macrophytes (see also Individual groups) ER - TY - JOUR T1 - Climate change: Potential impacts and interactions in wetlands of the United States AN - 17597808; 4718379 AB - Wetlands exist in a transition zone between aquatic and terrestrial environments which can be altered by subtle changes in hydrology. Twentieth century climate records show that the United States is generally experiencing a trend towards a wetter, warmer climate; some climate models suggest that this trend will continue and possibly intensify over the next 100 years. Wetlands that are most likely to be affected by these and other potential changes (e.g., sea-level rise) associated with atmospheric carbon enrichment include permafrost wetlands, coastal and estuarine wetlands, peatlands, alpine wetlands, and prairie pothole wetlands. Potential impacts range from changes in community structure to changes in ecological function, and from extirpation to enhancement. Wetlands (particularly boreal peatlands) play an important role in the global carbon cycle, generally sequestering carbon in the form of biomass, methane, dissolved organic material and organic sediment. Wetlands that are drained or partially dried can become a net source of methane and carbon dioxide to the atmosphere, serving as a positive biotic feedback to global warming. Policy options for minimizing the adverse impacts of climate change on wetland ecosystems include the reduction of current anthropogenic stresses, allowing for inland migration of coastal wetlands as sea-level rises, active management to preserve wetland hydrology, and a wide range of other management and restoration options. JF - Journal of the American Water Resources Association AU - Burkett, V AU - Kusler, J AD - Forest Ecology Branch, National Wetlands Research Center, U.S. Geological Survey, 700 Cajundome Blvd., Lafayette, Louisiana 70506, USA, virginia_burkett@usgs.gov Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 313 EP - 320 VL - 36 IS - 2 SN - 1093-474X, 1093-474X KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - Environmental Effects KW - Peat Bogs KW - Methane KW - Water Management KW - Land Management KW - Pollution (Environmental) KW - Land KW - Climate KW - Climatic changes KW - Environmental impact KW - USA KW - Methane (see also Digester gas, Sludge gas) KW - Water management KW - Climatic Changes KW - Hydrology KW - Wetlands KW - Carbon dioxide KW - Carbon Dioxide KW - AQ 00001:Water Resources and Supplies KW - Q2 09141:General KW - SW 0810:General KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17597808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Climate+change%3A+Potential+impacts+and+interactions+in+wetlands+of+the+United+States&rft.au=Burkett%2C+V%3BKusler%2C+J&rft.aulast=Burkett&rft.aufirst=V&rft.date=2000-04-01&rft.volume=36&rft.issue=2&rft.spage=313&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Climatic changes; Environmental impact; Wetlands; Methane (see also Digester gas, Sludge gas); Pollution (Environmental); Water management; Land; Climate; Hydrology; Carbon dioxide; Peat Bogs; Environmental Effects; Methane; Water Management; Land Management; Climatic Changes; Carbon Dioxide; USA ER - TY - JOUR T1 - Biogeochemical effects of global change on U.S. national parks AN - 17597488; 4718381 AB - Federal parks and other public lands have unique mandates and rules regulating their use and conservation. Because of variation in their response to local, regional, and global-scale disturbance, development of mitigation strategies requires substantial research in the context of long-term inventory and monitoring. In 1982, the National Park Service began long-term, watershed-level studies in a series of national parks. The objective was to provide a more comprehensive database against which the effects of global change and other issues could be quantified. A subset of five sites in North Carolina, Texas, Washington, Michigan, and Alaska, is examined here. During the last 50 years, temperatures have declined at the southern sites and increased at the northern sites with the greatest increase in Alaska. Only the most southern site has shown an increase in precipitation amount. The net effect of these trends, especially for the most northern and southern sites, would likely be an increase in the growing season and especially the time soil processes could continue without moisture or temperature limitations. During the last 18 years, there were few trends in atmospheric ion inputs. The most evident was the decline in SO sub(4) super(2-) deposition. There were no significant relationships between ion input and stream water output. This finding suggests other factors as modification of precipitation or canopy throughfall by soil processes, hydrologic flow path, and snowmelt rates are major processes regulating stream water chemical outputs. JF - Journal of the American Water Resources Association AU - Herrmann, R AU - Stottlemyer, R AU - Zak, J C AU - Edmonds, R L AU - Van Miegroet, H AD - U.S. Geological Survey, MESC, Colorado State University, Fort Collins, Colorado 80523, USA, ray_herrmann@usgs.gov Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 337 EP - 346 VL - 36 IS - 2 SN - 1093-474X, 1093-474X KW - national parks KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - Land Use KW - Prediction KW - Precipitation (Atmospheric) KW - Climatic changes KW - Streams KW - National Parks KW - Recreational waters KW - Climatic Changes KW - Hydrology KW - Refuges KW - Biogeochemistry KW - Climate KW - Environmental impact KW - Precipitation KW - Streams (in natural channels) KW - Land use KW - Databases KW - USA KW - Parks KW - Marine parks KW - Conservation KW - AQ 00001:Water Resources and Supplies KW - Q2 09141:General KW - SW 0810:General KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17597488?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Biogeochemical+effects+of+global+change+on+U.S.+national+parks&rft.au=Herrmann%2C+R%3BStottlemyer%2C+R%3BZak%2C+J+C%3BEdmonds%2C+R+L%3BVan+Miegroet%2C+H&rft.aulast=Herrmann&rft.aufirst=R&rft.date=2000-04-01&rft.volume=36&rft.issue=2&rft.spage=337&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Prediction; Refuges; Biogeochemistry; Climatic changes; Recreational waters; Marine parks; Environmental impact; Databases; Precipitation (Atmospheric); Climate; Parks; Hydrology; Conservation; Streams (in natural channels); Land use; Land Use; National Parks; Climatic Changes; Precipitation; Streams; USA ER - TY - JOUR T1 - Predicting the probability of detecting organochlorine pesticides and polychlorinated biphenyls in stream systems on the basis of land use in the Pacific Northwest, USA AN - 17595684; 4703284 AB - We analyzed streambed sediment and fish tissue (Cottus sp.) at 30 sites in the Puget Sound and Willamette basins in Washington and Oregon, USA, respectively, for organochlorine pesticides and polychlorinated biphenyls (PCBs). The study was designed to determine the concentrations of organochlorine pesticides and PCBs in fish tissue and sediment by land use within these basins and to develop an empirical relation between land use and the probability of detecting these compounds in fish tissue or sediment. We identified 14 organochlorines in fish tissue and sediment; three compounds were unique to either fish tissue or sediment samples. The highest number of organochlorines detected in both fish tissue and streambed sediment was at those sites located in watersheds dominated by urban land uses. Using logistic regression, we found a significant relation between percentage agriculture and urban land use and organochlorines in fish tissue. The results of this study indicate that organochlorine pesticides and PCBs are still found in fish tissues and bed sediments in these two basins. In addition, we produced statistically significant models capable of predicting the probability of detecting specific organochlorines in fish on the basis of land use. Although the presented models are specific to the two study basins, the modeling approach could be applied to other basins as well. JF - Environmental Toxicology and Chemistry AU - Black, R W AU - Haggland, AL AU - Voss, F D AD - U.S. Geological Survey, Water Resources Division, 1201 Pacific Avenue, Suite 600, Tacoma, Washington 98402, USA, rwblack@usgs.gov Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 1044 EP - 1054 VL - 19 IS - 4 SN - 0730-7268, 0730-7268 KW - Miller's thumbs KW - USA, Oregon, Willamette R. KW - USA, Oregon, Willamette basin KW - USA, Pacific Northwest KW - USA, Washington, Puget Sound KW - USA, Washington, Puget Sound basin KW - land use KW - Water Resources Abstracts; Toxicology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Prediction KW - Land Use KW - Regression Analysis KW - Organochlorine compounds KW - Polychlorinated Biphenyls KW - Basins KW - Water pollution measurements KW - Tissue Analysis KW - Streams KW - USA, Washington KW - Agricultural practices KW - Cottus KW - Statistical Analysis KW - USA, Oregon KW - Pollution forecasting KW - PCB compounds KW - PCB KW - Urban environments KW - Sediment pollution KW - Pollution detection KW - Pesticides (organochlorine) KW - Pollution surveys KW - Probabilistic Process KW - Aquatic environment KW - Land use KW - Bioaccumulation KW - Urban Areas KW - Pesticides KW - Q5 08503:Characteristics, behavior and fate KW - SW 3010:Identification of pollutants KW - P 2000:FRESHWATER POLLUTION KW - X 24156:Environmental impact KW - X 24136:Environmental impact UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17595684?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Predicting+the+probability+of+detecting+organochlorine+pesticides+and+polychlorinated+biphenyls+in+stream+systems+on+the+basis+of+land+use+in+the+Pacific+Northwest%2C+USA&rft.au=Black%2C+R+W%3BHaggland%2C+AL%3BVoss%2C+F+D&rft.aulast=Black&rft.aufirst=R&rft.date=2000-04-01&rft.volume=19&rft.issue=4&rft.spage=1044&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Bioaccumulation; Pollution detection; Pesticides; Pollution surveys; Land use; PCB; Sediment pollution; Agricultural practices; Organochlorine compounds; Pesticides (organochlorine); Streams; Urban environments; Basins; Water pollution measurements; Pollution forecasting; PCB compounds; Aquatic environment; Land Use; Prediction; Regression Analysis; Urban Areas; Polychlorinated Biphenyls; Statistical Analysis; Tissue Analysis; Probabilistic Process; Cottus; USA, Washington; USA, Oregon ER - TY - JOUR T1 - Selective removal of organic contaminants from sediments: a methodology for toxicity identification evaluations (TIEs) AN - 17591565; 4698128 AB - Aqueous slurries of a test sediment spiked with dibenz[a,h]anthracene, 2,4,5,2',4',5'-hexachlorobiphenyl, p,p'-DDE, or phenanthrene were subjected to decontamination experimentation. The spiked sediments were agitated at elevated temperatures for at least 96 h in the presence of either of the two contaminant-absorbing media: clusters of polyethylene membrane or lipid-containing semipermeable membrane devices (SPMDs). The effects of treatment temperature and surface area of media on the removal of contaminants were explored. This work is part of a larger methodology for whole-sediment toxicity identification evaluation (TIE). A method is being sought that is capable of detoxifying sediments with respect to organic contaminants while leaving toxicity attributable to inorganic contaminants unaffected. JF - Chemosphere AU - Lebo, JA AU - Huckins, J N AU - Petty, J D AU - Ho, K T AU - Stern, E A AD - US Geological Survey, Columbia Environmental Research Center (CERC), 4200 New Haven Road, Columbia, MO, USA, jon_lebo@usgs.gov Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 811 EP - 819 VL - 40 IS - 8 SN - 0045-6535, 0045-6535 KW - 1,2-5,6-Dibenzanthracene KW - DDE KW - hexachlorobiphenyl KW - hydrocarbons KW - methodology KW - Toxicology Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Pollution Abstracts KW - Detoxification KW - Decontamination KW - Water pollution treatment KW - Sediment Contamination KW - Temperature Effects KW - Temperature effects KW - Experimental Data KW - Sorption KW - Sediment pollution KW - Membranes KW - Organic matter KW - Toxicity KW - Contaminated sediments KW - Phenanthrene KW - Organic Compounds KW - Organic compounds KW - Toxicity (see also Lethal limits) KW - Toxicity testing KW - X 24222:Analytical procedures KW - SW 3070:Water quality control KW - AQ 00002:Water Quality KW - P 6000:TOXICOLOGY AND HEALTH KW - Q5 08522:Protective measures and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17591565?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere&rft.atitle=Selective+removal+of+organic+contaminants+from+sediments%3A+a+methodology+for+toxicity+identification+evaluations+%28TIEs%29&rft.au=Lebo%2C+JA%3BHuckins%2C+J+N%3BPetty%2C+J+D%3BHo%2C+K+T%3BStern%2C+E+A&rft.aulast=Lebo&rft.aufirst=JA&rft.date=2000-04-01&rft.volume=40&rft.issue=8&rft.spage=811&rft.isbn=&rft.btitle=&rft.title=Chemosphere&rft.issn=00456535&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Temperature effects; Detoxification; Sediment pollution; Sorption; Membranes; Water pollution treatment; Organic matter; DDE; Phenanthrene; Decontamination; Organic compounds; Toxicity testing; Toxicity (see also Lethal limits); Contaminated sediments; Experimental Data; Sediment Contamination; Temperature Effects; Organic Compounds; Toxicity ER - TY - JOUR T1 - Distribution of Xantus' Murrelet Synthliboramphus hypoleucus at sea in the Southern California Bight, 1995-97 AN - 17523238; 4705153 AB - We radiomarked 153 Xantus' Murrelets Synthliboramphus hypoleucus captured at sea near Santa Barbara Island (SBI), the largest murrelet colony in the California Channel Islands, USA. We tracked these radiomarked murrelets in the Southern California Bight (SCB) off coastal southern California during the 1995-97 breeding seasons. In 1995 during mild El Nino conditions, the murrelets were distributed in non-upwelling areas. In 1996-97, they were distributed in dense patches, aggregating in cool upwelled waters near the northern Channel Islands or south of San Nicolas Island. Murrelets flew longer distances from SBI to foraging areas in 1997 (x = 111 plus or minus 44 km) than in 1996 (x = 62 plus or minus 25 km), but the distances they travelled did not differ between months (Apr and May) within years. Mean foraging distances from SBI were similar for 'incubating' murrelets (determined on the basis of repeated visits to SBI) and 'non-incubating' murrelets during the colony attendance period. We attributed the low return rate of radiomarked murrelets to SBI to the capture and marking of a large proportion of birds that were not actively incubating rather than to any adverse effects of radio attachment. We believe changes in murrelet foraging patterns between the 1970s and 1990s are associated with changes in prey resources in the SCB. Flexibility in the foraging strategies of these murrelets may be related to the highly variable marine environment at the southern end of the California Current Upwelling System. JF - Ibis AU - Whitworth, D L AU - Takekawa, J Y AU - Carter, H R AU - Newman, SH AU - Keeney, T W AU - Kelly, PR AD - US Geological Survey, Biological Resources Division, Western Ecological Research Center, San Francisco Bay Estuary Field Station, PO Box 2012, Vallejo, CA 94592, USA, John_Takekawa@usgs.gov Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 268 EP - 279 VL - 142 IS - 2 SN - 0019-1019, 0019-1019 KW - USA, California KW - Xantus's murrelet KW - Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Foraging behavior KW - Sonic tags KW - Synthliboramphus hypoleucus KW - Radio-tagging KW - Local movements KW - Breeding status KW - Feeding behaviour KW - Breeding KW - INE, USA, California KW - Movements KW - Habitat utilization KW - Activity patterns KW - O 1070:Ecology/Community Studies KW - Q1 08421:Migrations and rhythms KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17523238?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ibis&rft.atitle=Distribution+of+Xantus%27+Murrelet+Synthliboramphus+hypoleucus+at+sea+in+the+Southern+California+Bight%2C+1995-97&rft.au=Whitworth%2C+D+L%3BTakekawa%2C+J+Y%3BCarter%2C+H+R%3BNewman%2C+SH%3BKeeney%2C+T+W%3BKelly%2C+PR&rft.aulast=Whitworth&rft.aufirst=D&rft.date=2000-04-01&rft.volume=142&rft.issue=2&rft.spage=268&rft.isbn=&rft.btitle=&rft.title=Ibis&rft.issn=00191019&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Local movements; Breeding; Feeding behaviour; Sonic tags; Activity patterns; Foraging behavior; Breeding status; Movements; Habitat utilization; Radio-tagging; Synthliboramphus hypoleucus; INE, USA, California ER - TY - JOUR T1 - Channel incision and patterns of cottonwood stress and mortality along the Mojave River, California AN - 17522643; 4710392 AB - In 1995, mapping and classification of riparian vegetation along the Mojave River in southern California revealed an 8-km reach in which riparian cottonwoods (Populus fremontii Wats.) were stressed or dying. We tested a set of predictions based on the inference that cottonwood decline was an indirect result of lowered water-table levels following flood-related channel incision. Comparisons of topographic cross-sections from 1963 and 1997, indicated a net change in channel elevation between -0.71 and -3.6 m within zones of cottonwood stress and mortality. Ages of young cottonwood and willow stems adjacent to the present channel and radial stem growth of surviving cottonwoods were consistent with the inference that channel incision, associated with sustained flooding in January and February of 1993, lowered channel elevations throughout the affected reach. Well records and soil redoximorphic features indicate that channel incision caused net water-table declines greater than or equal to 1.5 m on portions of the adjacent flood plain where cottonwood stand mortality ranged between 58 and 93%. In areas where water-table declines were estimated to be <1.0 m, stand mortality was 7-13%. JF - Journal of Arid Environments AU - Scott, M L AU - Lines, G C AU - Auble, G T AD - United States Geological Survey, 4512 McMurry Avenue, Fort Collins, 80525-3400, Colorado, U.S.A. Y1 - 2000/04// PY - 2000 DA - Apr 2000 SP - 399 EP - 414 PB - Academic Press VL - 44 IS - 4 SN - 0140-1963, 0140-1963 KW - Fremont cottonwood KW - USA, California KW - USA, California, Mojave R. KW - Water Resources Abstracts; Ecology Abstracts KW - Incised Rivers KW - Mortality KW - Riparian Vegetation KW - Groundwater Level KW - Water Table KW - Cottonwood Trees KW - Water Stress KW - Populus fremontii KW - Channels KW - Water Level Fluctuations KW - Geomorphology KW - Flooding KW - Mapping KW - D 04640:Other angiosperms KW - SW 0860:Water and plants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17522643?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Arid+Environments&rft.atitle=Channel+incision+and+patterns+of+cottonwood+stress+and+mortality+along+the+Mojave+River%2C+California&rft.au=Scott%2C+M+L%3BLines%2C+G+C%3BAuble%2C+G+T&rft.aulast=Scott&rft.aufirst=M&rft.date=2000-04-01&rft.volume=44&rft.issue=4&rft.spage=399&rft.isbn=&rft.btitle=&rft.title=Journal+of+Arid+Environments&rft.issn=01401963&rft_id=info:doi/10.1006%2Fjare.1999.0614 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Populus fremontii; Water Stress; Riparian Vegetation; Mapping; Cottonwood Trees; Water Table; Incised Rivers; Channels; Mortality; Water Level Fluctuations; Groundwater Level; Geomorphology; Flooding DO - http://dx.doi.org/10.1006/jare.1999.0614 ER - TY - JOUR T1 - Immunology of Green Turtle Fibropapillomatosis in Hawaii AN - 21096792; 11288437 AB - Fibropapillomatosis is a neoplastic disease with global distribution that poses significant threat to marine turtles like greens, loggerheads and olive ridleys. In endemic areas, prevalence of FP in green turtles in Hawaii can reach up to 80%. Previous work in Hawaii revealed hematologic changes in green turtles afflicted with FP that were suggestive of immunosuppression. A trial with captive green turtles in Hawaii evaluated tools to assess immune response in this species and found that both cell mediated and humoral immune response can be measured. Cell mediated immune response of free-ranging green turtles with and without FP was measured on Oahu and Hawaii. Cell proliferation assays (CPA) indicate that turtles moderately to severely afflicted with FP are immunosuppressed; however, immunosuppression does not appear to be a prerequisite for manifestation of FP in green turtles. JF - NOAA Technical Memorandum NMFS SEFSC AU - Work, T M AU - Rameyer, R A AU - Balazs, G H AU - Cray, C AU - Chang, S P AD - U.S. Geological Survey, Post Office Box 50167, Honolulu, Hawaii 96850, USA, thierry_work@usgs.gov Y1 - 2000/03/04/ PY - 2000 DA - 2000 Mar 04 IS - 477 KW - Immunology Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Oceanic Abstracts KW - Olea KW - Immunology KW - Aquatic reptiles KW - Environmental impact KW - Immunity KW - USA, Hawaii, Oahu I. KW - Defence mechanisms KW - Endemic species KW - Chelonia mydas KW - Immune response KW - Fibropapillomatosis KW - Cell proliferation KW - Immune response (humoral) KW - Immunosuppression KW - O 1070:Ecology/Community Studies KW - F 06955:Immunomodulation & Immunopharmacology KW - Q1 08484:Species interactions: parasites and diseases KW - Q5 08501:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21096792?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=NOAA+Technical+Memorandum+NMFS+SEFSC&rft.atitle=Immunology+of+Green+Turtle+Fibropapillomatosis+in+Hawaii&rft.au=Work%2C+T+M%3BRameyer%2C+R+A%3BBalazs%2C+G+H%3BCray%2C+C%3BChang%2C+S+P&rft.aulast=Work&rft.aufirst=T&rft.date=2000-03-04&rft.volume=&rft.issue=477&rft.spage=&rft.isbn=&rft.btitle=&rft.title=NOAA+Technical+Memorandum+NMFS+SEFSC&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-12-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Endemic species; Immunology; Aquatic reptiles; Environmental impact; Immunity; Defence mechanisms; Fibropapillomatosis; Immune response; Immune response (humoral); Cell proliferation; Immunosuppression; Olea; Chelonia mydas; USA, Hawaii, Oahu I. ER - TY - JOUR T1 - Green Sea Turtles (Chelonia mydas) in a South Texas (USA) Developmental Habitat AN - 21082389; 11288403 AB - Green sea turtles (Chelonia mydas) were commercially exploited in Texas waters during the mid-to-late 1800's. Today, south Texas waters serve as important developmental habitat for this species. Relatively few studies have been undertaken of green turtles in Texas waters. Furthermore, knowledge of green turtles in developmental habitats is limited, but has been growing through the use of directed capture studies. Entanglement netting was used to capture green turtles at the Mansfield Channel jetties, located in south Texas, on at least one day per month, year-round, from June 1989 to December 1997. Two hundred fifty-eight juvenile green turtles (n = 383 captures) were netted during 1,149 hours of netting effort. The overall catcb-per-unit-effort of 3.63 turtles/km-hour was higher than recorded during other similar green turtle studies conducted elsewhere during recent years. To date, this has been the only long-term, directed capture study of green turtles in Texas. Final results of this study will be presented. Results will be compared to data collected by the Sea Turtle Stranding and Salvage Network for 471 green turtles found stranded in Texas from 1989 to 1997. Information on the sizes, sex ratios, seasonal trends, and yearly trends of green turtles sampled using the two methods will be presented and compared. JF - NOAA Technical Memorandum NMFS SEFSC AU - Shaver, D J AD - U.S. Geological Survey, Biological Resources Division, Columbia Environmental Research Center, Padre Island Field Station, Padre Island National Seashore, Post Office Box 181300 Corpus Christi, Texas 78480-1300, USA, donna_shaver@usgs.gov Y1 - 2000/03/04/ PY - 2000 DA - 2000 Mar 04 IS - 477 KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Oceanic Abstracts KW - ASW, USA, Texas KW - Sex ratio KW - Chelonia mydas KW - Aquatic reptiles KW - Habitat KW - Stranding KW - Q1 08424:Age and growth KW - O 1050:Vertebrates, Urochordates and Cephalochordates KW - Q5 08501:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21082389?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=NOAA+Technical+Memorandum+NMFS+SEFSC&rft.atitle=Green+Sea+Turtles+%28Chelonia+mydas%29+in+a+South+Texas+%28USA%29+Developmental+Habitat&rft.au=Shaver%2C+D+J&rft.aulast=Shaver&rft.aufirst=D&rft.date=2000-03-04&rft.volume=&rft.issue=477&rft.spage=&rft.isbn=&rft.btitle=&rft.title=NOAA+Technical+Memorandum+NMFS+SEFSC&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-12-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Sex ratio; Aquatic reptiles; Habitat; Stranding; Chelonia mydas; ASW, USA, Texas ER - TY - JOUR T1 - Microbial degradation of chloroethenes in groundwater systems AN - 860394553; 14382378 AB - The chloroethenes, tetrachloroethene (PCE) and trichloroethene (TCE) are among the most common contaminants detected in groundwater systems. As recently as 1980, the consensus was that chloroethene compounds were not significantly biodegradable in groundwater. Consequently, efforts to remediate chloroethene-contaminated groundwater were limited to largely unsuccessful pump-and-treat attempts. Subsequent investigation revealed that under reducing conditions, aquifer microorganisms can reductively dechlorinate PCE and TCE to the less chlorinated daughter products dichloroethene (DCE) and vinyl chloride (VC). Although recent laboratory studies conducted with halorespiring microorganisms suggest that complete reduction to ethene is possible, in the majority of groundwater systems reductive dechlorination apparently stops at DCE or VC. However, recent investigations conducted with aquifer and stream-bed sediments have demonstrated that microbial oxidation of these reduced daughter products can be significant under anaerobic redox conditions. The combination of reductive dechlorination of PCE and TCE under anaerobic conditions followed by anaerobic microbial oxidation of DCE and VC provides a possible microbial pathway for complete degradation of chloroethene contaminants in groundwater systems.Original Abstract: Les chloroethanes, tetrachloroethane (PCE) et trichloroethane (TCE) sont parmi les polluants les plus communs trouves dans les aquiferes. Depuis les annees 1980, on considere que les chloroethanes ne sont pas significativement biodegradables dans les aquiferes. Par consequent, les efforts pour depolluer les nappes contaminees par des chloroethanes se sont limites a des tentatives de pompage-traitement globalement sans succes. Des travaux ulterieurs ont montre que dans des conditions reductrices, des micro-organismes presents dans les aquiferes peuvent, par reduction, degrader les PCE et TCE en composes moins chlores, comme le dichlorethane (DCE) et le chlorure de vinyl (VC). Bien que des etudes de laboratoire realisees avec des micro-organismes adaptes aux composes halogenes montrent que la reduction complete en ethane est possible, dans la plupart des nappes la reaction de dechloration par reduction s'arrete apparemment au DCE et au VC. Cependant, des recherches recentes menees sur des sediments d'un aquifere et d'alluvions ont demontre que l'oxydation microbienne de ces descendants reduits peut se produire de maniere significative dans des conditions de redox anerobies. La dechloration par reduction de PCE et de TCE dans des conditions anerobies suivie par une oxydation microbienne anerobie des DCE et VC fournit une piste microbienne possible pour obtenir une degradation complete des chloroethanes polluants dans les aquiferes. JF - Hydrogeology Journal AU - Bradley, Paul M AD - US Geological Survey, 720 Gracern Road, Suite 129 Columbia, South Carolina 29210-7651, USA Fax: +1-803-750-6181, pbradley@usgs.gov Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 104 EP - 111 PB - Springer-Verlag, P.O. Box 2485 Secaucus NJ 07096-2485 USA VL - 8 IS - 1 SN - 1431-2174, 1431-2174 KW - Water Resources Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts KW - Anaerobic Conditions KW - Chlorophylls KW - Aquifer KW - Ethene KW - chloroethene KW - Vinyl chloride KW - Sediment chemistry KW - Anaerobic conditions KW - Oxidation KW - Microorganisms KW - Groundwater pollution KW - Groundwater KW - Contaminants KW - Aquifers KW - Biodegradation KW - Degradation KW - ethene KW - Groundwater Pollution KW - Anaerobic microorganisms KW - Pollutants KW - Ground water KW - Trichloroethylene KW - Dechlorination KW - Redox reactions KW - Biodegradability KW - Sediments KW - Tetrachloroethylene KW - AQ 00001:Water Resources and Supplies KW - Q5 08503:Characteristics, behavior and fate KW - SW 3050:Ultimate disposal of wastes KW - A 01450:Environmental Pollution & Waste Treatment KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/860394553?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrogeology+Journal&rft.atitle=Microbial+degradation+of+chloroethenes+in+groundwater+systems&rft.au=Bradley%2C+Paul+M&rft.aulast=Bradley&rft.aufirst=Paul&rft.date=2000-03-01&rft.volume=8&rft.issue=1&rft.spage=104&rft.isbn=&rft.btitle=&rft.title=Hydrogeology+Journal&rft.issn=14312174&rft_id=info:doi/10.1007%2Fs100400050011 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Redox reactions; Sediment chemistry; Dechlorination; Aquifer; Chlorophylls; Biodegradation; Microorganisms; Groundwater pollution; Ethene; Aquifers; ethene; Anaerobic microorganisms; Anaerobic conditions; Biodegradability; Sediments; Oxidation; Ground water; chloroethene; Trichloroethylene; Tetrachloroethylene; Contaminants; Vinyl chloride; Degradation; Groundwater; Anaerobic Conditions; Pollutants; Groundwater Pollution DO - http://dx.doi.org/10.1007/s100400050011 ER - TY - JOUR T1 - Microbial populations in contaminant plumes AN - 860392343; 14382375 AB - Abstract not available. JF - Hydrogeology Journal AU - Haack, Sheridan K AU - Bekins, Barbara A AD - US Geological Survey, 6520 Mercantile Way, Suite 5 Lansing, Michigan 48911, USA Fax: +1-517-887-8937, skhaack@usgs.gov Y1 - 2000/03// PY - 2000 DA - March 2000 SP - 63 EP - 76 PB - Springer-Verlag, P.O. Box 2485 Secaucus NJ 07096-2485 USA VL - 8 IS - 1 SN - 1431-2174, 1431-2174 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Environment Abstracts; Water Resources Abstracts; Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Water pollution KW - Pollutants KW - Microorganisms KW - Contaminants KW - Plumes KW - Populations KW - AQ 00001:Water Resources and Supplies KW - A 01360:Plant Diseases KW - SW 3050:Ultimate disposal of wastes KW - Q2 09184:Composition of water KW - ENA 02:Toxicology & Environmental Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/860392343?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrogeology+Journal&rft.atitle=Microbial+populations+in+contaminant+plumes&rft.au=Haack%2C+Sheridan+K%3BBekins%2C+Barbara+A&rft.aulast=Haack&rft.aufirst=Sheridan&rft.date=2000-03-01&rft.volume=8&rft.issue=1&rft.spage=63&rft.isbn=&rft.btitle=&rft.title=Hydrogeology+Journal&rft.issn=14312174&rft_id=info:doi/10.1007%2Fs100400050008 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2016-04-13 N1 - SubjectsTermNotLitGenreText - Water pollution; Contaminants; Plumes; Pollutants; Microorganisms; Populations DO - http://dx.doi.org/10.1007/s100400050008 ER - TY - JOUR T1 - The significance of microbial processes in hydrogeology and geochemistry AN - 860390850; 14382373 AB - (methanogenesis). In aquifers contaminated by anthropogenic contaminants, an excess of available organic carbon often exists, and microbial metabolism is limited by the availability of electron acceptors. In addition to changes in groundwater chemistry, the solid matrix of the aquifer is affected by microbial processes. The production of carbon dioxide and organic acids can lead to increased mineral solubility, which can lead to the development of secondary porosity and permeability. Conversely, microbial production of carbonate, ferrous iron, and sulfide can result in the precipitation of secondary calcite or pyrite cements that reduce primary porosity and permeability in groundwater systems.Original Abstract: (methanogenese). Dans les aquiferes pollues par des contaminants d'origine humaine, il existe un exces de carbone organique disponible et le metabolisme microbien est limite par la disponibilite des accepteurs d'electrons. En plus des modifications du chimisme des eaux souterraines, la matrice encaissante de l'aquifere est affectee par des processus microbiens. La production de dioxyde de carbone et d'acides organiques peut conduire a accroitre la solubilite de mineraux, ce qui peut produire un developpement de la porosite secondaire et de la permeabilite. Inversement, la production microbienne de carbonate, de fer ferreux et de sulfure peut provoquer la precipitation de ciments de calcite secondaire ou de pyrite qui reduisent la porosite primaire et la permeabilite dans les nappes. JF - Hydrogeology Journal AU - Chapelle, Francis H AD - US Geological Survey, 720 Gracern Road, Suite 129 Columbia, South Carolina 29210, USA Fax: +1-803-750-6181, chapelle@usgs.gov Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 41 EP - 46 PB - Springer-Verlag, P.O. Box 2485 Secaucus NJ 07096-2485 USA VL - 8 IS - 1 SN - 1431-2174, 1431-2174 KW - Water Resources Abstracts; Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Organic carbon KW - Sulphides KW - Permeability KW - Cement KW - Organic Carbon KW - Porosity KW - Calcite KW - Pyrite KW - porosity KW - organic acids KW - Microorganisms KW - Geohydrology KW - Groundwater pollution KW - pyrite KW - Groundwater KW - Contaminants KW - Carbon dioxide KW - Iron KW - carbonates KW - Metabolism KW - Aquifers KW - Methanogenesis KW - Carbon KW - Ground water KW - Solubility KW - Organic Acids KW - Sulfides KW - Geochemistry KW - Precipitation KW - calcite KW - Sulfide KW - Minerals KW - Q2 09263:Topography and morphology KW - AQ 00001:Water Resources and Supplies KW - SW 3050:Ultimate disposal of wastes KW - A 01450:Environmental Pollution & Waste Treatment KW - P 2000:FRESHWATER POLLUTION KW - Q1 08422:Environmental effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/860390850?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrogeology+Journal&rft.atitle=The+significance+of+microbial+processes+in+hydrogeology+and+geochemistry&rft.au=Chapelle%2C+Francis+H&rft.aulast=Chapelle&rft.aufirst=Francis&rft.date=2000-03-01&rft.volume=8&rft.issue=1&rft.spage=41&rft.isbn=&rft.btitle=&rft.title=Hydrogeology+Journal&rft.issn=14312174&rft_id=info:doi/10.1007%2FPL00010973 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Sulphides; Permeability; Organic carbon; Geochemistry; Porosity; Ground water; Pyrite; Carbon dioxide; Methanogenesis; Aquifers; Solubility; Cement; Precipitation; calcite; Sulfide; organic acids; Carbon; pyrite; Contaminants; Minerals; carbonates; Iron; Metabolism; Sulfides; Groundwater pollution; Groundwater; porosity; Organic Acids; Organic Carbon; Calcite; Geohydrology; Microorganisms DO - http://dx.doi.org/10.1007/PL00010973 ER - TY - JOUR T1 - Economic prefeasibility studies of mining in the Athna, Inc. selections in the Wrangell-St. Elias National Park and Preserve, Alaska AN - 52324718; 2000-058469 AB - Mining and processing cost analyses were conducted on basaltic copper, polymetallic vein, and iron skarn deposit types that are found on Athna, Inc. selections in the Wrangell-St. Elias National Park and Preserve. Resources and recoverable metal values (RMV) needed to make these deposits economically viable were modeled. Methods for estimating ore grades and required RMV are presented. Economic modeling for basaltic copper deposits indicated the RMV necessary for a 15% Discounted-Cash-Flow Rate-Of-Return (DCFROR) for an underground mine ranged from $152/st for a 10,209 stpd operation to $224/st for a 1,276 stpd operation. Economic modeling for polymetallic vein deposits indicated the RMV necessary for a 15% DCFROR for an underground mine ranged from $155/st at 2,189 stpd to $394/st at 273 stpd. Economic modeling for iron skarn deposits indicated the RMV necessary for a 15% DCFROR for an underground mine ranged from $163/st at 6,191 stpd to $259/st at 774 stpd. JF - BLM-Alaska Open File Report AU - Coldwell, James R Y1 - 2000/03// PY - 2000 DA - March 2000 SP - 20 PB - Bureau of Land Management, Alaska State Office, Anchorage, AK KW - United States KW - mining KW - Wrangell-Saint Elias National Park and Preserve KW - volcanic rocks KW - igneous rocks KW - Wrangell Mountains KW - national parks KW - iron ores KW - mineral economics KW - feasibility studies KW - potential deposits KW - mining geology KW - metamorphic rocks KW - basalts KW - polymetallic ores KW - copper ores KW - skarn KW - North America KW - Southeastern Alaska KW - public lands KW - cost KW - Southern Alaska KW - metals KW - metal ores KW - Saint Elias Mountains KW - Alaska KW - metasomatic rocks KW - 27B:Economic geology, economics of ore deposits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52324718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Coldwell%2C+James+R&rft.aulast=Coldwell&rft.aufirst=James&rft.date=2000-03-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Economic+prefeasibility+studies+of+mining+in+the+Athna%2C+Inc.+selections+in+the+Wrangell-St.+Elias+National+Park+and+Preserve%2C+Alaska&rft.title=Economic+prefeasibility+studies+of+mining+in+the+Athna%2C+Inc.+selections+in+the+Wrangell-St.+Elias+National+Park+and+Preserve%2C+Alaska&rft.issn=&rft_id=info:doi/ L2 - http://www.blm.gov/ak/st/en/info/gen_pubs/ofr.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 14 N1 - PubXState - AK N1 - Document feature - illus. incl. 8 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - #04510 N1 - SubjectsTermNotLitGenreText - Alaska; basalts; copper ores; cost; feasibility studies; igneous rocks; iron ores; metal ores; metals; metamorphic rocks; metasomatic rocks; mineral economics; mining; mining geology; national parks; North America; polymetallic ores; potential deposits; public lands; Saint Elias Mountains; skarn; Southeastern Alaska; Southern Alaska; United States; volcanic rocks; Wrangell Mountains; Wrangell-Saint Elias National Park and Preserve ER - TY - JOUR T1 - Hydrogeologic investigations reveal interbasin recharge contributes significantly to detrimental nutrient loads at Buffalo National River, Arkansas AN - 52225055; 2001-042629 AB - Mill Creek is a major tributary to Buffalo National River that contributes 96 percent of the nitrate/nitrite-nitrogen load to the Buffalo River below their confluence. Analyses of macroinvertebrate community structure and function demonstrate that this nitrate load and other pollutants detrimentally affect biologic communities within Mill Creek and the Buffalo River. A synoptic survey of Mill Creek revealed that nitrate and orthophosphate concentrations increase upstream to peak at two springs near its head. Subsequent dye tracing showed that the recharge area for these springs extends far beyond their surface watershed and into the adjacent Crooked Creek basin. Geologic mapping indicates that these springs discharge from the base of the Mississippian Boone Formation, a 120-m-thick karst aquifer, and are localized near the corner of a fault-bounded block that extends beneath both watersheds. Flow and water quality measurements taken from both streams and springs in the adjoining Crooked Creek and Mill Creek basins help define and characterize the interbasin recharge. Stream discharge/watershed area ratios employed early in the study raised initial suspicions of interbasin transfer; later they verified the accuracy of the dye-trace delineated basins. Water quality analyses show that springs in the Mill Creek basin that receive interbasin recharge have similar water quality to both streams and springs in the Crooked Creek basin and reflect the more intense agricultural land use occurring in the Crooked Creek basin. JF - Abstracts with Programs - Geological Society of America AU - Mott, David N AU - Hudson, Mark R AU - Aley, Tom AU - Anonymous Y1 - 2000/03// PY - 2000 DA - March 2000 SP - 36 EP - 37 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 3 SN - 0016-7592, 0016-7592 KW - United States KW - hydrology KW - water quality KW - Buffalo River KW - pollutants KW - surface water KW - watersheds KW - pollution KW - Mill Creek KW - fluid dynamics KW - environmental analysis KW - nitrogen KW - Buffalo National River KW - critical load KW - nitrate ion KW - nitrite ion KW - Arkansas KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52225055?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Hydrogeologic+investigations+reveal+interbasin+recharge+contributes+significantly+to+detrimental+nutrient+loads+at+Buffalo+National+River%2C+Arkansas&rft.au=Mott%2C+David+N%3BHudson%2C+Mark+R%3BAley%2C+Tom%3BAnonymous&rft.aulast=Mott&rft.aufirst=David&rft.date=2000-03-01&rft.volume=32&rft.issue=3&rft.spage=36&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, South-Central Section, 34th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Arkansas; Buffalo National River; Buffalo River; critical load; environmental analysis; fluid dynamics; hydrology; Mill Creek; nitrate ion; nitrite ion; nitrogen; pollutants; pollution; surface water; United States; water quality; watersheds ER - TY - JOUR T1 - Paleobiogeographic changes at the Pleistocene-Holocene boundary near Pintwater Cave, southern Nevada AN - 50908978; 2000-062717 JF - Quaternary Research AU - Hockett, Bryan Scott Y1 - 2000/03// PY - 2000 DA - March 2000 SP - 263 EP - 269 PB - Academic Press, New York, NY VL - 53 IS - 2 SN - 0033-5894, 0033-5894 KW - United States KW - Chordata KW - Quaternary KW - lower Holocene KW - Mammalia KW - biogeography KW - Pintwater Cave KW - Holocene KW - upper Pleistocene KW - Cenozoic KW - paleoenvironment KW - Mojave Desert KW - Pleistocene KW - stratigraphic boundary KW - Vertebrata KW - Lincoln County Nevada KW - Tetrapoda KW - Nevada KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50908978?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quaternary+Research&rft.atitle=Paleobiogeographic+changes+at+the+Pleistocene-Holocene+boundary+near+Pintwater+Cave%2C+southern+Nevada&rft.au=Hockett%2C+Bryan+Scott&rft.aulast=Hockett&rft.aufirst=Bryan&rft.date=2000-03-01&rft.volume=53&rft.issue=2&rft.spage=263&rft.isbn=&rft.btitle=&rft.title=Quaternary+Research&rft.issn=00335894&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00335894 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 37 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - QRESAV N1 - SubjectsTermNotLitGenreText - biogeography; Cenozoic; Chordata; Holocene; Lincoln County Nevada; lower Holocene; Mammalia; Mojave Desert; Nevada; paleoenvironment; Pintwater Cave; Pleistocene; Quaternary; stratigraphic boundary; Tetrapoda; United States; upper Pleistocene; Vertebrata ER - TY - JOUR T1 - Use of super(324)U and super(238)U isotopes to identify fertilizer-derived uranium in the Florida Everglades AN - 18007704; 4670383 AB - Surface water and peat in the northern Everglades have very low natural concentrations of U and are therefore sensitive to the addition of small amounts of U from anthropogenic sources such as fertilizer. Peat samples collected along a nutrient gradient in the northern Everglades have unusually high concentrations of U (> 1 mu g/g, dry basis) and also have a distinctive super(234)U/ super(238)U activity ratio (AR). AR values for U-enriched peat fall in the narrow range of AR values for commercial phosphate fertilizer (1.00 plus or minus 0.05). In contrast, AR values for low-U peat from background sites exceed 1.05. The spatial distribution of anomalous U concentration, and of fertilizer-like AR values in peat, parallel a previously documented pattern of P enrichment. These results strongly suggest that some of the U in nutrient-impacted peatlands is fertilizer-derived. Agricultural drainage water sampled in the northern Everglades has high concentrations of dissolved U (0.3-2.4 mu g/l) compared to surface water from background sites ( 1.05). Synoptic sampling of surface water along drainage canals indicate that Lake Okeechobee, and some drainage from agricultural fields, are sources of dissolved U, whereas wetlands farther downstream act as sinks for U. Historically cultivated agricultural soil has only a marginally elevated (+ 0.2 mu g/g) average concentration of U compared to nearby uncultivated soil and incorporates only 20% of the U from an aqueous solution that was slurried with the soil. In contrast, a similar experiment with fresh Everglades peat indicated uptake of 90% of the added U. These experiments support the proposed removal of U from agricultural fields and concentration of U in downstream peatlands. The methodology of this study can be used to describe the behavior of fertilizer-derived U in other low-U environments. JF - Applied Geochemistry AU - Zielinski, R A AU - Simmons, K R AU - Orem, W H AD - United States Geological Survey, Denver, CO 80225, USA Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 369 EP - 383 VL - 15 IS - 3 SN - 0883-2927, 0883-2927 KW - Activity ratio KW - USA, Florida, Everglades KW - USA, Florida, Okeechobee L. KW - ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Aqualine Abstracts KW - Pollution monitoring KW - Path of Pollutants KW - Surface water KW - Agricultural pollution KW - Water Sampling KW - Behaviour KW - Freshwater KW - Spatial Distribution KW - Drainage Canals KW - Fertilizers KW - Distribution (Mathematical) KW - Downstream KW - Wetlands KW - Sampling KW - Enrichment KW - Freshwater pollution KW - Experimental Data KW - Drainage KW - Pollutant identification KW - Uranium Radioisotopes KW - Peat KW - Behavior KW - Analytical techniques KW - Uranium isotopes KW - Drainage Water KW - Drainage water KW - SW 3020:Sources and fate of pollution KW - Q5 08502:Methods and instruments KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18007704?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Geochemistry&rft.atitle=Use+of+super%28324%29U+and+super%28238%29U+isotopes+to+identify+fertilizer-derived+uranium+in+the+Florida+Everglades&rft.au=Zielinski%2C+R+A%3BSimmons%2C+K+R%3BOrem%2C+W+H&rft.aulast=Zielinski&rft.aufirst=R&rft.date=2000-03-01&rft.volume=15&rft.issue=3&rft.spage=369&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Pollution monitoring; Fertilizers; Surface water; Agricultural pollution; Uranium isotopes; Analytical techniques; Wetlands; Pollutant identification; Peat; Freshwater pollution; Drainage; Distribution (Mathematical); Behaviour; Sampling; Drainage water; Experimental Data; Path of Pollutants; Water Sampling; Spatial Distribution; Uranium Radioisotopes; Drainage Canals; Behavior; Downstream; Enrichment; Drainage Water; Freshwater ER - TY - JOUR T1 - Geochemical Evidence for an Eolian Sand Dam across the North and South Platte Rivers in Nebraska AN - 17785541; 5414781 AB - Geochemical and geomorphic data from dune fields in southwestern Nebraska provide new evidence that the Nebraska Sand Hills once migrated across the North and South Platte rivers and dammed the largest tributary system to the Missouri River. The Lincoln County and Imperial dune fields, which lie downwind of the South Platte River, have compositions intermediate between the Nebraska Sand Hills (quartz-rich) and northeastern Colorado dunes (K-feldspar-rich). The most likely explanation for the intermediate composition is that the Lincoln County and Imperial dunes are derived in part from the Nebraska Sand Hills and in part from the South Platte River. The only mechanism by which the Nebraska Sand Hills could have migrated this far south is by complete infilling of what were probably perennially dry North Platte and South Platte river valleys. Such a series of events would have required an extended drought, both for activation of eolian sand and decreased discharges in the Platte River system. A nearby major tributary of the North Platte River is postulated to have been blocked by eolian sand about 12,000 super(14)C yr B.P. We propose that an eolian sand dam across the Plattes was constructed at about this same time. Copyright 2000 University of Washington. JF - Quaternary Research AU - Muhs AU - Swinehart, J B AU - Loope, D B AU - Been, J AU - Mahan, SA AU - Bush, CA AD - United States Geological Survey, MS 980, Box 25046, Federal Center, Denver, Colorado, 80225 Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 214 EP - 222 PB - Academic Press, Inc., 525 B St. Ste. 1900 San Diego CA 92101-4495 USA, [mailto:apsubs@acad.com] VL - 53 IS - 2 SN - 0033-5894, 0033-5894 KW - Sand dams KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Rivers KW - River sediment loads KW - River Systems KW - Geochemistry KW - Freshwater KW - Eolian geomorphology KW - Valleys KW - USA, Nebraska, Platte R. KW - USA, Nebraska, South Platte R. KW - Geomorphology KW - Fluvial deposits KW - Sand KW - Dams KW - Sedimentary structures KW - Dunes KW - Sedimentation KW - Tributaries KW - M2 556.53:Rivers, Streams, Canals (556.53) KW - SW 6040:Soil mechanics KW - Q2 09264:Sediments and sedimentation KW - Q2 09265:Sedimentary structures and stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17785541?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quaternary+Research&rft.atitle=Geochemical+Evidence+for+an+Eolian+Sand+Dam+across+the+North+and+South+Platte+Rivers+in+Nebraska&rft.au=Muhs%3BSwinehart%2C+J+B%3BLoope%2C+D+B%3BBeen%2C+J%3BMahan%2C+SA%3BBush%2C+CA&rft.aulast=Muhs&rft.aufirst=&rft.date=2000-03-01&rft.volume=53&rft.issue=2&rft.spage=214&rft.isbn=&rft.btitle=&rft.title=Quaternary+Research&rft.issn=00335894&rft_id=info:doi/10.1006%2Fqres.1999.2104 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Rivers; Geomorphology; Fluvial deposits; Dams; Sand; Sedimentary structures; Geochemistry; River sediment loads; Sedimentation; Eolian geomorphology; River Systems; Dunes; Valleys; Tributaries; USA, Nebraska, South Platte R.; USA, Nebraska, Platte R.; Freshwater DO - http://dx.doi.org/10.1006/qres.1999.2104 ER - TY - JOUR T1 - Status and threats of the Ashy Storm Petrel Oceanodroma homochroa in the Southern California Bight, USA AN - 17698810; 5683313 AB - In the Southern California Bight, we estimated a population of about 2000 breeding pairs of Ashy Storm Petrels Oceanodroma homochroa (50-65% of the world breeding population), with relatively large colonies at San Miguel, Santa Barbara, and Santa Cruz Islands. During the breeding season (April-December), foraging occurred widely over the adjacent continental shelf. Mean breeding success at Santa Cruz Island from 1995-1997 was 14-23% lower than reported for the South Farallon Islands off Central California in three periods between 1971 and 1995. Relatively high levels of DDT and PCB contamination and eggshell thinning likely contribute to low hatching success. Human disturbance from recreational activities and numbers of avian predators appear to be increasing at certain colonies. Colony illumination at night by bright lights from squid-fishing boats is an emerging problem at many colonies. Oil and plastic pollution, military weapons testing, and light attraction likely impact smaller numbers. Planned eradication of rats at Anacapa Island may allow an increase in colony size. This California-endemic storm petrel may warrant evaluation for potential listing under the California and US Endangered Species Acts. JF - Marine Ornithology AU - Carter, H R AU - McChesney, G J AU - McIver, W R AU - Whitworth, D L AU - Welsh, D AU - Yee, J L AU - Keeney, T W AU - Golightly, R T AD - US Geological Survey, Western Ecological Research Center, 6924 Tremont Road, Dixon, CA 95620, USA, Harry_Carter@usgs.gov A2 - Flint, Eand Swift K (eds) Y1 - 2000/03// PY - 2000 DA - March 2000 PB - African Seabird Group VL - 28 IS - 2 SN - 1018-3337, 1018-3337 KW - Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - INE, USA, California, Farallon Is. KW - Oceanodroma homochroa KW - Pollution effects KW - Man-induced effects KW - INE, USA, California, Southern California Bight KW - Bird eggs KW - INE, USA, California, Channel Is., Santa Barbara I. KW - Breeding seasons KW - INE, USA, California, Channel Is., Santa Cruz I. KW - INE, USA, California, Channel Is., San Miguel I. KW - Industrial wastes KW - Continental shelves KW - Oil pollution KW - Light fishing KW - Plastics KW - Hatching KW - PCB KW - Marine KW - Marine birds KW - Rare species KW - Ecosystem disturbance KW - Foraging behaviour KW - DDT KW - Census KW - Chemical pollutants KW - Breeding success KW - Q5 08523:Conservation, wildlife management and recreation KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - O 4090:Conservation and Environmental Protection UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17698810?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Marine+Ornithology&rft.atitle=Status+and+threats+of+the+Ashy+Storm+Petrel+Oceanodroma+homochroa+in+the+Southern+California+Bight%2C+USA&rft.au=Carter%2C+H+R%3BMcChesney%2C+G+J%3BMcIver%2C+W+R%3BWhitworth%2C+D+L%3BWelsh%2C+D%3BYee%2C+J+L%3BKeeney%2C+T+W%3BGolightly%2C+R+T&rft.aulast=Carter&rft.aufirst=H&rft.date=2000-03-01&rft.volume=28&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Marine+Ornithology&rft.issn=10183337&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Abstracts of oral and poster presentations. N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Marine birds; Man-induced effects; Pollution effects; Rare species; Ecosystem disturbance; Bird eggs; Breeding seasons; Foraging behaviour; Industrial wastes; Continental shelves; DDT; Census; Light fishing; Oil pollution; Plastics; Chemical pollutants; Hatching; PCB; Breeding success; Oceanodroma homochroa; INE, USA, California, Channel Is., Santa Cruz I.; INE, USA, California, Farallon Is.; INE, USA, California, Channel Is., San Miguel I.; INE, USA, California, Southern California Bight; INE, USA, California, Channel Is., Santa Barbara I.; Marine ER - TY - JOUR T1 - Fish communities and their associations with environmental variables, lower San Joaquin River drainage, California AN - 17673553; 4759047 AB - Twenty sites in the lower San Joaquin River drainage, California, were sampled from 1993 to 1995 to characterize fish communities and their associations with measures of water quality and habitat quality. The feasibility of developing an Index of Biotic Integrity was assessed by evaluating four fish community metrics, including percentages of native fish, omnivorous fish, fish intolerant of environmental degradation, and fish with external anomalies. Of the thirty-one taxa of fish captured during the study, only 10 taxa were native to the drainage. Multivariate analyses of percentage data identified four site groups characterized by different groups of species. The distributions of fish species were related to specific conductance, gradient, and mean depth; however, specific conductance acted as a surrogate variable for a large group of correlated variables. Two of the fish community metrics - percentage of introduced fish and percentage of intolerant fish - appeared to be responsive to environmental quality but the responses of the other two metrics - percentage of omnivorous fish and percentage of fish with anomalies - were less direct. The conclusion of the study is that fish communities are responsive to environmental conditions, including conditions associated with human-caused disturbances, particularly agriculture and water development. The results suggest that changes in water management and water quality could result in changes in species distributions. Balancing the costs and benefits of such changes poses a considerable challenge to resource managers. JF - Environmental Biology of Fishes AU - Brown, L R AD - U.S. Geological Survey, Placer Hall, 6000 J Street, Sacramento, CA 95819-6129, USA, lrbrown@usgs.gov Y1 - 2000/03// PY - 2000 DA - March 2000 SP - 251 EP - 269 VL - 57 IS - 3 SN - 0378-1909, 0378-1909 KW - USA, California KW - USA, California, San Joaquin R. KW - Aqualine Abstracts; Water Resources Abstracts; Ecology Abstracts KW - Environmental Effects KW - Agriculture KW - Fitness KW - Rivers KW - Degradation KW - Pollution (Environmental) KW - Biological Sampling KW - Water Quality KW - Habitat KW - Water quality KW - Water Resources Development KW - Decomposition KW - Pisces KW - Community composition KW - Aquatic Habitats KW - Water resources development KW - Fish Populations KW - Sampling KW - Food preferences KW - Introduced species KW - Water quality (Natural waters) KW - SW 5010:Network design KW - D 04668:Fish KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17673553?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Biology+of+Fishes&rft.atitle=Fish+communities+and+their+associations+with+environmental+variables%2C+lower+San+Joaquin+River+drainage%2C+California&rft.au=Brown%2C+L+R&rft.aulast=Brown&rft.aufirst=L&rft.date=2000-03-01&rft.volume=57&rft.issue=3&rft.spage=251&rft.isbn=&rft.btitle=&rft.title=Environmental+Biology+of+Fishes&rft.issn=03781909&rft_id=info:doi/10.1023%2FA%3A1007660914155 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Rivers; Fitness; Community composition; Food preferences; Water quality; Introduced species; Agriculture; Pollution (Environmental); Water resources development; Sampling; Habitat; Decomposition; Water quality (Natural waters); Environmental Effects; Degradation; Aquatic Habitats; Biological Sampling; Water Quality; Fish Populations; Water Resources Development; Pisces DO - http://dx.doi.org/10.1023/A:1007660914155 ER - TY - JOUR T1 - Plant Phenology in a Cloud Forest on the Island of Maui, Hawaii AN - 17629940; 4767466 AB - We recorded the times of flowering, fruiting, and leafing for ten native canopy and subcanopy trees and shrubs (monthly from December 1994 through December 1997) in a montane cloud forest with relatively aseasonal rainfall on the island of Maui, Hawaii. These species represented the great majority of individual woody plants at the site. Flowers and fruits were available in the community year-round; however, all species exhibited annual patterns of flowering, and four species showed annual patterns of fruiting while the rest fruited in supra-annual patterns. Many species had protracted flowering or fruiting peaks, and some bore small numbers of flowers or fruit year-round. Most species flowered in a monthly peak mainly between May and August, corresponding to the period of greatest solar irradiance and marginally higher temperatures. Fruit ripening followed at varying intervals. In contrast, the heaviest flowering occurred between November and March, resulting from bloom of the dominant tree, Metrosideros polymorpha. At the highest elevations, Metrosideros flowering was heaviest during September, but peak flowering of lower elevation trees occurred in late fall and winter. Two forms of this species differed in their temporal and spatial patterns of flowering. For M. polymorpha var. polymorpha and var. incana, bloom peaked annually between November and January; however, for M. polymorpha var. glaberrima, flowering peaked from April through July, with an earlier secondary peak in January. JF - Biotropica AU - Berlin, KE AU - Pratt, T K AU - Simon, J C AU - Kowalsky, J R AU - Hatfield, J S AD - USGS Pacific Island Ecosystems Research Center, P.O. Box 44, Hawaii National Park, HI 96718, USA Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 90 EP - 99 PB - [URL:http://journals.allenpress.com/jrnlserv/?request=get-abstract &issn=0006-3606&volume=32&page=90] VL - 32 IS - 1 SN - 0006-3606, 0006-3606 KW - USA, Hawaii KW - Ecology Abstracts KW - Flowering KW - Phenology KW - Fruiting KW - Leaves KW - Plants KW - Species composition KW - Cloud forests KW - D 04126:Tropical forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17629940?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotropica&rft.atitle=Plant+Phenology+in+a+Cloud+Forest+on+the+Island+of+Maui%2C+Hawaii&rft.au=Berlin%2C+KE%3BPratt%2C+T+K%3BSimon%2C+J+C%3BKowalsky%2C+J+R%3BHatfield%2C+J+S&rft.aulast=Berlin&rft.aufirst=KE&rft.date=2000-03-01&rft.volume=32&rft.issue=1&rft.spage=90&rft.isbn=&rft.btitle=&rft.title=Biotropica&rft.issn=00063606&rft_id=info:doi/10.1043%2F0006-3606%282000%29032%280090%3APPIACF%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Plants; Species composition; Flowering; Fruiting; Leaves; Phenology; Cloud forests DO - http://dx.doi.org/10.1043/0006-3606(2000)032(0090:PPIACF)2.0.CO;2 ER - TY - JOUR T1 - Aggressive and foraging behavioral interactions among ruffe AN - 17619153; 4759055 AB - The ruffe, Gymnocephalus cernuus, is a nonindigenous percid in the Great Lakes. Ruffe are aggressive benthivores and forage over soft substrates. Laboratory studies in pools (100 cm diameter, 15 cm water depth) were conducted to determine whether fish density (low = 2, medium = 4, high = 6 ruffe per pool) changed foraging and aggressive behaviors with a limited food supply of chironomid larvae. All fish densities demonstrated a hierarchy based on aggressive interactions, but ruffe were most aggressive at low and high fish densities. Time spent in foraging was lowest at the low fish density. The best forager at the low fish density was the most aggressive individual, but the second most aggressive fish at the medium and high fish density was the best forager and also the one chased most frequently. A medium fish density offered the best energetic benefits to ruffe by providing the lowest ratio of time spent in aggression to that spent foraging. Based on our results, ruffe should grow best at an intermediate density. With high ruffe densities, we would also expect disparity in size as the more aggressive fish are able to garner a disproportionate amount of the resources. Alternatively, as the Great Lakes are a fairly open system, ruffe could migrate out of one area to colonize another as populations exceed optimal densities. JF - Environmental Biology of Fishes AU - Savino, J F AU - Kostich, MJ AD - U.S. Geological Survey, Great Lakes Science Center, 1451 Green Road, Ann Arbor, MI 48105, USA, jacqueline_savino@usgs.gov Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 337 EP - 345 VL - 57 IS - 3 SN - 0378-1909, 0378-1909 KW - Blacktail KW - North America, Great Lakes KW - Ecology Abstracts; Animal Behavior Abstracts KW - Colonization KW - Foraging behavior KW - Population density KW - Aggressive behavior KW - Gymnocephalus cernua KW - Introduced species KW - D 04668:Fish KW - Y 25535:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17619153?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Biology+of+Fishes&rft.atitle=Aggressive+and+foraging+behavioral+interactions+among+ruffe&rft.au=Savino%2C+J+F%3BKostich%2C+MJ&rft.aulast=Savino&rft.aufirst=J&rft.date=2000-03-01&rft.volume=57&rft.issue=3&rft.spage=337&rft.isbn=&rft.btitle=&rft.title=Environmental+Biology+of+Fishes&rft.issn=03781909&rft_id=info:doi/10.1023%2FA%3A1007523307404 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Gymnocephalus cernua; Foraging behavior; Aggressive behavior; Introduced species; Population density; Colonization DO - http://dx.doi.org/10.1023/A:1007523307404 ER - TY - JOUR T1 - Invasion by a Japanese marine microorganism in western North America AN - 17608510; 4740557 AB - The earliest record in western North America of Trochammina hadai Uchio, a benthic foraminifer common in Japanese estuaries, is from sediment collected in Puget Sound in 1971. It was first found in San Francisco Bay in sediment samples taken in 1983, and since 1986 has been collected at 91% of the sampled sites in the Bay, constituting up to 93% of the foraminiferal assemblage at individual sites. The species is also present in recent sediment samples from 12 other sites along the west coast of North America. The evidence indicates that T. hadai is a recent introduction to San Francisco Bay, and is probably also not native to the other North American sites. Trochammina hadai was probably transported from Japan in ships' ballast tanks, in mud associated with anchors, or in sediments associated with oysters imported for mariculture. Its remarkable invasion of San Francisco Bay suggests the potential for massive, rapid invasions by other marine microorganisms. JF - Hydrobiologia AU - McGann, M AU - Sloan, D AU - Cohen, AN AD - U.S. Geological Survey, Menlo Park, CA 94025, USA, mmcgann@usgs.gov Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 25 EP - 30 PB - Kluwer Academic Publishers VL - 421 IS - 1 SN - 0018-8158, 0018-8158 KW - Japan KW - USA, California KW - invasions KW - new records KW - Ecology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Range extension KW - Marine microorganisms KW - Trochamminahadai uchio KW - Population density KW - Foraminifera KW - Colonization KW - Community composition KW - Aquatic communities KW - INE, USA, California, San Francisco Bay KW - Invasions KW - Trochammina hadai KW - Introduced species KW - Benthos KW - K 03012:Protozoa KW - D 04655:Invertebrates - general KW - Q1 08242:Geographical distribution KW - O 1030:Invertebrates KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17608510?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrobiologia&rft.atitle=Invasion+by+a+Japanese+marine+microorganism+in+western+North+America&rft.au=McGann%2C+M%3BSloan%2C+D%3BCohen%2C+AN&rft.aulast=McGann&rft.aufirst=M&rft.date=2000-03-01&rft.volume=421&rft.issue=1&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Hydrobiologia&rft.issn=00188158&rft_id=info:doi/10.1023%2FA%3A1003808517945 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Colonization; Population density; Introduced species; Benthos; Range extension; Community composition; Aquatic communities; Marine microorganisms; Invasions; Foraminifera; Trochamminahadai uchio; Trochammina hadai; INE, USA, California, San Francisco Bay DO - http://dx.doi.org/10.1023/A:1003808517945 ER - TY - JOUR T1 - Hurricanes, Coral Reefs and Rainforests: Resistance, Ruin and Recovery in the Caribbean AN - 17599528; 4726863 AB - The coexistence of hurricanes, coral reefs, and rainforests in the Caribbean demonstrates that highly structured ecosystems with great diversity can flourish in spite of recurring exposure to intense destructive energy. Coral reefs develop in response to wave energy and resist hurricanes largely by virtue of their structural strength. Limited fetch also protects some reefs from fully developed hurricane waves. While storms may produce dramatic local reef damage, they appear to have little impact on the ability of coral reefs to provide food or habitat for fish and other animals. Rainforests experience an enormous increase in wind energy during hurricanes with dramatic structural changes in the vegetation. The resulting changes in forest microclimate are larger than those on reefs and the loss of fruit, leaves, cover, and microclimate has a great impact on animal populations. Recovery of many aspects of rainforest structure and function is rapid, though there may be long-term changes in species composition. While resistance and repair have maintained reefs and rainforests in the past, human impacts may threaten their ability to survive. JF - Ambio AU - Lugo, A E AU - Rogers, C S AU - Nixon, S W AD - Caribbean Field Station US Geological Survey, Biological Resources Division, US Department of Interior PO Box 710, St. John, VI 00830, USA, caroline_rogers@usgs.gov Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 106 EP - 114 PB - [URL:http://journals.allenpress.com/jrnlserv/?request=get-abstract &issn=0044-7447&volume=29&page=106] VL - 29 IS - 2 SN - 0044-7447, 0044-7447 KW - Caribbean Sea KW - Ecology Abstracts KW - ecosystem recovery KW - Hurricanes KW - Rain forests KW - Coral reefs KW - ecosystem disturbance KW - D 04099:Ecosystem studies - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17599528?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ambio&rft.atitle=Hurricanes%2C+Coral+Reefs+and+Rainforests%3A+Resistance%2C+Ruin+and+Recovery+in+the+Caribbean&rft.au=Lugo%2C+A+E%3BRogers%2C+C+S%3BNixon%2C+S+W&rft.aulast=Lugo&rft.aufirst=A&rft.date=2000-03-01&rft.volume=29&rft.issue=2&rft.spage=106&rft.isbn=&rft.btitle=&rft.title=Ambio&rft.issn=00447447&rft_id=info:doi/10.1043%2F0044-7447%282000%29029%280106%3AHCRARR%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Coral reefs; Rain forests; Hurricanes; ecosystem disturbance; ecosystem recovery DO - http://dx.doi.org/10.1043/0044-7447(2000)029(0106:HCRARR)2.0.CO;2 ER - TY - JOUR T1 - Patterns of change in tree islands in Arthur R. Marshall Loxahatchee National Wildlife Refuge from 1950 to 1991 AN - 17596905; 4700858 AB - Size, shape, orientation, and distribution of tree islands in a remnant of northern Everglades wetland were examined from 1950 and 1991 aerial photography. The objectives were to quantify the patterns of tree islands in Loxahatchee National Wildlife Refuge, to determine if the patterns of tree islands had changed between the two dates, and to relate the tree island patterns to modeled pre- and post-drainage hydrologic patterns. There was considerable variation in the patterns of tree islands spatially and temporally. Changes in the size and shape of tree islands from 1950 to 1991 are consistent with changes in the modeled pre- and post-drainage hydrologic patterns. Photo plots along the edges of the refuge, where hydroperiods are longer and depths deeper than they were historically, show a decrease in tree island size and in overall area of tree islands in the plots. Photo plots in the interior, where hydroperiods are shorter than they were pre-drainage, show an increase in tree island area. Overall, there is a tendency for more tree islands to be irregularly shaped in the 1991 photo plots than in the 1950 plots, a reflection of the loss of water flow, reduction of pulse magnitude, and the ponding of water along the perimeter dikes. This study illustrates the importance of considering long-term changes in hydroperiod, depths, and water flows in the restoration of this area. JF - Wetlands AU - Brandt, LA AU - Portier, K M AU - Kitchens, WM AD - USFWS, Arthur R. Marshall Loxahatchee National Wildlife Refuge, 10216 Lee Road, Boynton Beach, FL 33437, USA Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 1 EP - 14 VL - 20 IS - 1 SN - 0277-5212, 0277-5212 KW - USA, Florida KW - patterns of change in tree islands KW - tree islands KW - Aqualine Abstracts; Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources; Water Resources Abstracts KW - Hydrologic Aspects KW - Trees KW - Aerial photography KW - Spatial Distribution KW - Time dependent KW - Vegetation cover KW - Renovation KW - Long-term records KW - Vegetation patterns KW - Islands KW - Distribution (Mathematical) KW - Quantitative Analysis KW - Wetlands KW - Swamps KW - Temporal Distribution KW - Chemical analysis (see also Individual techniques) KW - Aerial Photography KW - Rehabilitation KW - Flow Discharge KW - USA, Florida, Loxahatchee National Wildlife Refuge KW - Photography KW - AQ 00001:Water Resources and Supplies KW - Q1 08463:Habitat community studies KW - SW 0810:General KW - D 04200:Wetlands UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17596905?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wetlands&rft.atitle=Patterns+of+change+in+tree+islands+in+Arthur+R.+Marshall+Loxahatchee+National+Wildlife+Refuge+from+1950+to+1991&rft.au=Brandt%2C+LA%3BPortier%2C+K+M%3BKitchens%2C+WM&rft.aulast=Brandt&rft.aufirst=LA&rft.date=2000-03-01&rft.volume=20&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Wetlands&rft.issn=02775212&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Vegetation cover; Long-term records; Wetlands; Swamps; Islands; Vegetation patterns; Trees; Aerial photography; Chemical analysis (see also Individual techniques); Time dependent; Renovation; Distribution (Mathematical); Photography; Hydrologic Aspects; Aerial Photography; Rehabilitation; Flow Discharge; Quantitative Analysis; Spatial Distribution; Temporal Distribution; USA, Florida, Loxahatchee National Wildlife Refuge ER - TY - JOUR T1 - Acute Toxicity of Fire-Control Chemicals, Nitrogenous Chemicals, and Surfactants to Rainbow Trout AN - 17595651; 4700257 AB - Laboratory studies were conducted to determine the acute toxicity of three ammonia-based fire retardants (Fire-Trol LCA-F, Fire-Trol LCM-R, and Phos-Chek 259F), five surfactant-based fire-suppressant foams (FireFoam 103B, FireFoam 104, Fire Quench, ForExpan S, and Pyrocap B-136), three nitrogenous chemicals (ammonia, nitrate, and nitrite), and two anionic surfactants (linear alkylbenzene sulfonate [LAS] and sodium dodecyl sulfate [SDS]) to juvenile rainbow trout Oncorhynchus mykiss in soft water. The descending rank order of toxicity (96-h concentration lethal to 50% of test organisms [96-h LC50]) for the fire retardants was as follows: Phos-Chek 259F (168 mg/L) > Fire-Trol LCA-F (942 mg/L) = Fire-Trol LCM-R (1,141 mg/L). The descending rank order of toxicity for the foams was as follows: FireFoam 103B (12.2 mg/L) = FireFoam 104 (13.0 mg/L) > ForExpan S (21.8 mg/L) > Fire Quench (39.0 mg/L) > Pyrocap B-136 (156 mg/L). Except for Pyrocap B-136, the foams were more toxic than the fire retardants. Un-ionized ammonia (NH sub(3); 0.125 mg/L as N) was about six times more toxic than nitrite (0.79 mg/L NO sub(2)-N) and about 13,300 times more toxic than nitrate (1,658 mg/L NO sub(3)-N). Linear alkylbenzene sulfonate (5.0 mg/L) was about five times more toxic than SDS (24.9 mg/L). Estimated total ammonia and NH sub(3) concentrations at the 96-h LC50s of the fire retardants indicated that ammonia was the primary toxic component in these formulations. Based on estimated anionic surfactant concentrations at the 96-h LC50s of the foams and reference surfactants, LAS was intermediate in toxicity and SDS was less toxic to rainbow trout when compared with the foams. Comparisons of recommended application concentrations to the test results indicate that accidental inputs of these chemicals into streams require substantial dilutions (100-1,750-fold) to reach concentrations nonlethal to rainbow trout. JF - Transactions of the American Fisheries Society AU - Buhl, K J AU - Hamilton, S J AD - U.S. Geological Survey, Biological Resources Division, Columbia Environmental Research Center, Ecotoxicology Research Station, 31247 436th Avenue, Yankton, SD 57078-6364, USA, kevin_buhl@usgs.gov Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 408 EP - 418 VL - 129 IS - 2 SN - 0002-8487, 0002-8487 KW - Oncorhynchus mykiss KW - Rainbow trout KW - linear alkylbenzene sulfonate KW - sodium lauryl sulfate KW - Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Toxicology Abstracts; Pollution Abstracts KW - Nitrate KW - Pollution effects KW - Fire retardant chemicals KW - Toxicity tests KW - Linear Alkyl Sulfonates KW - Accidents KW - Chemical pollution KW - Nitrite KW - Ammonia KW - Acute Toxicity KW - Comparison Studies KW - Trout KW - Water Pollution Effects KW - Sodium lauryl sulfate KW - Fire fighting KW - Fire retardants KW - Nitrogen compounds KW - Toxicity testing KW - Surfactants KW - Indicator species KW - X 24151:Acute exposure KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17595651?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Acute+Toxicity+of+Fire-Control+Chemicals%2C+Nitrogenous+Chemicals%2C+and+Surfactants+to+Rainbow+Trout&rft.au=Buhl%2C+K+J%3BHamilton%2C+S+J&rft.aulast=Buhl&rft.aufirst=K&rft.date=2000-03-01&rft.volume=129&rft.issue=2&rft.spage=408&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Pollution effects; Fire fighting; Nitrogen compounds; Surfactants; Toxicity tests; Indicator species; Nitrate; Ammonia; Sodium lauryl sulfate; Fire retardant chemicals; Nitrite; Fire retardants; Chemical pollution; Toxicity testing; Accidents; Trout; Comparison Studies; Acute Toxicity; Water Pollution Effects; Linear Alkyl Sulfonates ER - TY - JOUR T1 - Comparison of an enzyme-linked immunosorbent assay (ELISA) to gas chromatography (GC) - measurement of polychlorinated biphenyls (PCBs) in selected US fish extracts AN - 17590062; 4668703 AB - The analysis of PCBs in fish tissues by immunoassay methods was evaluated using fish collected from a US monitoring program, the National Contaminant Biomonitoring Program of the US Department of Interior, Fish and Wildlife Service. Selected composite whole fish samples, which represented widely varying concentrations and sources of PCBs, were extracted and subjected to congener PCB analysis by gas chromatography (GC) and total PCB analysis using an ELISA (ePCBs) calibrated against technical Aroclor 1248. PCB congener patterns in these fishes were different from the patterns found in commercial Aroclors or their combinations as demonstrated by principal component analysis of normalized GC congener data. The sum of the PCB congeners measured by GC (total-PCBs) ranged from 37 to 4600 ng/g (wet weight). Concentrations of PCBs as determined by the ELISA method were positively correlated with total-PCBs and the ePCBs/total-PCBs ratios for individual samples ranged from 1 to 6. Ratios of ePCBs/total-PCBs for dilutions of Aroclors 1242, 1254, and 1260 and for matrix spikes range from 0.6 for 1242 to 2.5 for 1254 and 1260. These results suggest that higher chlorinated PCB congeners have higher affinity for the anti-PCB antibodies. Partial least squares with latent variable analysis of GC and ELISA data of selected Aroclors and fish samples also support the conclusion that ELISA derived PCB concentrations are dependent on the degree of chlorination. JF - Chemosphere AU - Zajicek, J L AU - Tillitt, DE AU - Schwartz, T R AU - Schmitt, C J AU - Harrison, RO AD - US Geological Survey, Columbia Environmental Research Center (CERC), 4200 New Haven Road, Columbia, MO 65201, USA, james_zajicek@usgs.gov Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 539 EP - 548 VL - 40 IS - 5 SN - 0045-6535, 0045-6535 KW - Aroclor KW - ELISA KW - Toxicology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Pollution Abstracts; Aqualine Abstracts KW - Tissues KW - Aquatic organisms KW - Pollution monitoring KW - Aroclors KW - Organochlorine compounds KW - Polychlorinated Biphenyls KW - Principal Component Analysis KW - Enzymes (see also Individual groups) KW - Statistical analysis KW - Tissues (Biological) KW - Correlation KW - Tissue Analysis KW - Gas Chromatography KW - Pisces KW - Comparative studies KW - Polychlorinated biphenyls KW - Measuring methods KW - Gas chromatography KW - Correlation Analysis KW - Assay KW - PCB compounds KW - PCB KW - Enzyme-linked immunosorbent assay KW - Fish (see also Individual groups) KW - Least Squares Method KW - Enzymes KW - Bioaccumulation KW - Comparison Studies KW - Analytical techniques KW - Pesticides KW - Fish KW - Chlorination KW - Monitoring KW - Immunoassays KW - SW 3010:Identification of pollutants KW - X 24222:Analytical procedures KW - Q5 08502:Methods and instruments KW - AQ 00003:Monitoring and Analysis of Water and Wastes KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17590062?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere&rft.atitle=Comparison+of+an+enzyme-linked+immunosorbent+assay+%28ELISA%29+to+gas+chromatography+%28GC%29+-+measurement+of+polychlorinated+biphenyls+%28PCBs%29+in+selected+US+fish+extracts&rft.au=Zajicek%2C+J+L%3BTillitt%2C+DE%3BSchwartz%2C+T+R%3BSchmitt%2C+C+J%3BHarrison%2C+RO&rft.aulast=Zajicek&rft.aufirst=J&rft.date=2000-03-01&rft.volume=40&rft.issue=5&rft.spage=539&rft.isbn=&rft.btitle=&rft.title=Chemosphere&rft.issn=00456535&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Bioaccumulation; Pesticides; Analytical techniques; ELISA; PCB; Pollution monitoring; Enzyme-linked immunosorbent assay; Organochlorine compounds; Gas chromatography; Pisces; Aquatic organisms; Tissues; Measuring methods; Chlorination; PCB compounds; Immunoassays; Comparative studies; Polychlorinated biphenyls; Fish (see also Individual groups); Enzymes (see also Individual groups); Statistical analysis; Assay; Tissues (Biological); Correlation; Monitoring; Aroclors; Polychlorinated Biphenyls; Principal Component Analysis; Least Squares Method; Enzymes; Gas Chromatography; Tissue Analysis; Comparison Studies; Correlation Analysis; Fish ER - TY - JOUR T1 - FITPOP, a heuristic simulation model of population dynamics and genetics with special reference to fisheries AN - 17519708; 4698709 AB - Although, perceiving genetic differences and their effects on fish population dynamics is difficult, simulation models offer a means to explore and illustrate these effects. I partitioned the intrinsic rate of increase parameter of a simple logistic-competition model into three components, allowing specification of effects of relative differences in fitness and mortality, as well as finite rate of increase. This model was placed into an interactive, stochastic environment to allow easy manipulation of model parameters (FITPOP). Simulation results illustrated the effects of subtle differences in genetic and population parameters on total population size, overall fitness, and sensitivity of the system to variability. Several consequences of mixing genetically distinct populations were illustrated. For example, behaviors such as depression of population size after initial introgression and extirpation of native stocks due to continuous stocking of genetically inferior fish were reproduced. It also was shown that carrying capacity relative to the amount of stocking had an important influence on population dynamics. Uncertainty associated with parameter estimates reduced confidence in model projections. The FITPOP model provided a simple tool to explore population dynamics, which may assist in formulating management strategies and identifying research needs. JF - Ecological Modelling AU - McKenna, JE Jr AD - United States Department Interior, Tunison Laboratory of Aquatic Science, USGS/BRD, 3075 Gracie Rd., Cortland, NY 13045, USA, jim_mckenna@usgs.gov Y1 - 2000/03/01/ PY - 2000 DA - 2000 Mar 01 SP - 81 EP - 95 VL - 127 IS - 1 SN - 0304-3800, 0304-3800 KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Pisces KW - Population genetics KW - Genetics KW - Mathematical models KW - fish KW - Fisheries KW - Population dynamics KW - Models KW - Q1 08603:Fishery statistics and sampling KW - D 04003:Modeling, mathematics, computer applications KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17519708?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Modelling&rft.atitle=Technological+applications+to+the+marketing+classroom%3A+An+International+Journal&rft.au=Leventhal%2C+Richard+C.%3BSwanson%2C+Andree&rft.aulast=Leventhal&rft.aufirst=Richard&rft.date=2016-04-01&rft.volume=10&rft.issue=2&rft.spage=102&rft.isbn=&rft.btitle=&rft.title=Journal+of+Research+in+Interactive+Marketing&rft.issn=20407122&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Genetics; Mathematical models; fish; Fisheries; Population dynamics; Population genetics; Models; Pisces DO - http://dx.doi.org/10.1016/S0304-3800(99)00205-7 ER - TY - JOUR T1 - Breeding Atlantic Puffins, Fractercula arctica, and Other Bird Species of Coburg Island, Nunavut AN - 17510259; 4699522 AB - Coburg Island and neighbouring waters were recently designated a Canadian National Wildlife Area. The large seabird colony at Cambridge Point has been previously described, and is dominated by Thick-billed Murres (160 000 pairs). We found that a small offshore island, named Princess Charlotte Monument, also supported breeding populations of seven marine bird species; three of which did not breed at the main colony (i.e., Northern Fulmar, Common Eider, and Atlantic Puffin). This is the most northern confirmed breeding site for Atlantic Puffins in Canada. Puffins at both Coburg Island and northern Greenland nest in rock crevices, apparently because permafrost in soil prevents burrow nesting. We suggest that puffin populations in the high arctic may be limited by habitat, rather than prey availability. JF - Canadian Field-Naturalist AU - Robards, M AU - Gilchrist, H G AU - Allard, K AD - Biological Resources Division, United States Geological Survey, 1011 East Tudor Road, Anchorage, AK 99510, USA Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 72 EP - 77 VL - 114 IS - 1 SN - 0008-3550, 0008-3550 KW - Birds KW - Canada, Northwest Territories KW - Ecology Abstracts KW - Site selection KW - Aves KW - Range extension KW - Colonies KW - Breeding status KW - Species composition KW - Nests KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17510259?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Field-Naturalist&rft.atitle=Breeding+Atlantic+Puffins%2C+Fractercula+arctica%2C+and+Other+Bird+Species+of+Coburg+Island%2C+Nunavut&rft.au=Robards%2C+M%3BGilchrist%2C+H+G%3BAllard%2C+K&rft.aulast=Robards&rft.aufirst=M&rft.date=2000-03-01&rft.volume=114&rft.issue=1&rft.spage=72&rft.isbn=&rft.btitle=&rft.title=Canadian+Field-Naturalist&rft.issn=00083550&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; Colonies; Breeding status; Species composition; Range extension; Nests; Site selection ER - TY - JOUR T1 - Toxicity of Anacostia River, Washington, DC, USA, sediment fed to mute swans (Cygnus olor) AN - 17497833; 4689483 AB - Sediment ingestion is sometimes the principal route by which waterfowl are exposed to environmental contaminants, and at severely contaminated sites waterfowl have been killed by ingesting sediment. Mute swans (Cygnus olor) were fed a diet for 6 weeks with a high but environmentally realistic concentration (24%) of sediment from the moderately polluted Anacostia River in the District of Columbia, USA, to estimate the sediment's toxicity. Control swans were fed the same diet without the sediment. Five organochlorine compounds were detected in the treated diets, but none of 22 organochlorine compounds included in the analyses was detected in livers of the treated swans. The concentrations of 24 polynuclear aromatic hydrocarbons measured in the treated diet were as high as 0.80 mg/kg, and they were thought to have been responsible for the observed induction of hepatic microsomal monooxygenase activity in livers. A concentration of 85 mg/kg of lead in the diet was enough to decrease red blood cell ALAD activity but was not high enough to cause more serious effects of lead poisoning. The dietary concentrations of Al, Fe, V, and Ba were high compared to the concentrations of these elements known to be toxic in laboratory feeding studies. However, the lack of accumulation in the livers of the treated swans suggested that these elements were not readily available from the ingested sediment. We did not study all potential toxic effects, but, on the basis of those that we did consider, we concluded that the treated swans were basically healthy after a chronic exposure to the sediment. JF - Environmental Toxicology and Chemistry AU - Beyer, W N AU - Day, D AU - Melancon, MJ AU - Sileo, L AD - U.S. Geological Survey, Patuxent Wildlife Research Center, 12011 Beech Forest Road, Laurel, MD 20708-4041, USA, nelson_beyer@usgs,gov Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 731 EP - 735 VL - 19 IS - 3 SN - 0730-7268, 0730-7268 KW - Cygnus olor KW - Mute swan KW - USA, District of Columbia, Anacostia R. KW - USA, Washington, D.C., Anacostia R. KW - USA, Washington, District of Columbia, Anacostia R. KW - Toxicology Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Organochlorine compounds KW - Swans KW - Pollution effects KW - Freshwater KW - Lead KW - Digestion KW - Sediment Contamination KW - USA, Washington D.C., Anacostia R. KW - Freshwater pollution KW - Diets KW - Sediment pollution KW - Polycyclic aromatic hydrocarbons KW - Hydrocarbons KW - Toxicity KW - Ingestion KW - Aromatic Compounds KW - Polynuclear aromatic hydrocarbons KW - Bioaccumulation KW - Sublethal effects KW - Water Pollution Effects KW - Aluminum KW - Liver KW - Birds KW - Organic Compounds KW - Iron KW - Toxicity testing KW - Aquatic birds KW - X 24240:Miscellaneous KW - P 2000:FRESHWATER POLLUTION KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17497833?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Toxicity+of+Anacostia+River%2C+Washington%2C+DC%2C+USA%2C+sediment+fed+to+mute+swans+%28Cygnus+olor%29&rft.au=Beyer%2C+W+N%3BDay%2C+D%3BMelancon%2C+MJ%3BSileo%2C+L&rft.aulast=Beyer&rft.aufirst=W&rft.date=2000-03-01&rft.volume=19&rft.issue=3&rft.spage=731&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Bioaccumulation; Sublethal effects; Pollution effects; Toxicity; Aquatic birds; Polycyclic aromatic hydrocarbons; Organochlorine compounds; Liver; Toxicity testing; Lead; Freshwater pollution; Diets; Polynuclear aromatic hydrocarbons; Ingestion; Digestion; Aromatic Compounds; Hydrocarbons; Water Pollution Effects; Swans; Aluminum; Sediment Contamination; Organic Compounds; Birds; Iron; USA, Washington D.C., Anacostia R.; Freshwater ER - TY - JOUR T1 - Impact of storm-water outfalls on sediment quality in Corpus Christi Bay, Texas, USA AN - 17494770; 4689463 AB - To determine the quality of sediments and extent of contaminant impacts, a Sediment Quality Triad (SQT) study was conducted at 36 sites in the Corpus Christi Bay, Texas, USA, system. Fifteen of the 36 sites were located near storm-water outfalls, but 13 other sites (i.e., industrial and domestic outfalls, oil field-produced water discharges, and dredging activity) and eight reference sites were also evaluated. Sediment samples were collected and analyzed for physical-chemical characteristics, contaminant concentrations (metals, polycyclic aromatic hydrocarbons [PAHs], polychlorinated biphenyls [PCBs], and pesticides), toxicity (amphipod and mysid solid phase and sea urchin pore-water fertilization and embryological development tests), and a benthic index of biotic integrity (BIBI) composed of 10 independent metrics calculated for each site. This large data matrix was reduced using multivariate analysis to create new variables for each component representing overall means and containing most of the variance in the larger data set. The new variables were used to conduct the correlation analysis. Toxicity was significantly correlated with both chemistry and ecological responses, whereas no correlations between the benthic metrics and sediment chemistry were observed. Using the combined information from the SQT, four of the five most degraded sites were storm-water outfall sites. Although estuaries are naturally stressful environments because of salinity and temperature fluctuations, this ecosystem appears to have been compromised by anthropogenic influences similar to what has been observed for other heavily urbanized bay systems along the Texas and Gulf coast. JF - Environmental Toxicology and Chemistry AU - Carr, R S AU - Montagna, P A AU - Biedenbach, J M AU - Kalke, R AU - Kennicutt, M C AU - Hooten, R AU - Cripe, G AD - U.S. Geological Survey, Biological Resources Division, Marine Ecotoxicology Research Station, Texas A&M University, Corpus Christi, Center for Coastal Studies, NRC Suite 3200, 6300 Ocean Drive, Corpus Christi, TX 78412, USA, scott_carr@usgs.gov Y1 - 2000/03// PY - 2000 DA - Mar 2000 SP - 561 EP - 574 VL - 19 IS - 3 SN - 0730-7268, 0730-7268 KW - USA, Texas, Corpus Christi Bay KW - Pollution Abstracts; Water Resources Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Storm Runoff KW - Polychlorinated Biphenyls KW - Toxicity tests KW - Stormwater runoff KW - Sediment Contamination KW - PCB compounds KW - PCB KW - Bays KW - Bioindicators KW - Marine KW - ASW, USA, Texas, Corpus Christi Bay KW - Sediment pollution KW - Polycyclic aromatic hydrocarbons KW - Hydrocarbons KW - Physicochemical properties KW - Wastewater Outfall KW - Toxicity KW - Outfalls KW - Marine pollution KW - Pesticides KW - Contaminants KW - Indicator species KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - SW 3020:Sources and fate of pollution KW - P 1000:MARINE POLLUTION KW - Q5 08504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17494770?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Impact+of+storm-water+outfalls+on+sediment+quality+in+Corpus+Christi+Bay%2C+Texas%2C+USA&rft.au=Carr%2C+R+S%3BMontagna%2C+P+A%3BBiedenbach%2C+J+M%3BKalke%2C+R%3BKennicutt%2C+M+C%3BHooten%2C+R%3BCripe%2C+G&rft.aulast=Carr&rft.aufirst=R&rft.date=2000-03-01&rft.volume=19&rft.issue=3&rft.spage=561&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Outfalls; Sediment pollution; Stormwater runoff; Pesticides; Toxicity tests; PCB; Indicator species; Polycyclic aromatic hydrocarbons; Marine pollution; Physicochemical properties; Toxicity; Contaminants; PCB compounds; Bays; Bioindicators; Storm Runoff; Hydrocarbons; Polychlorinated Biphenyls; Sediment Contamination; Wastewater Outfall; ASW, USA, Texas, Corpus Christi Bay; Marine ER - TY - JOUR T1 - Preface - Groundwater and microbial processes AN - 1291599255; 14382369 JF - Hydrogeology Journal AU - Bekins, Barbara AD - U.S. Geological Survey, MS 496, 345 Middlefield Rd., Menlo Park, CA 94025 Fax: +1 650-329-5590 babekins[AT]usgs.gov, US Y1 - 2000/03// PY - 2000 DA - March 2000 SP - 2 EP - 3 PB - Springer-Verlag, P.O. Box 2485 Secaucus NJ 07096-2485 USA VL - 8 IS - 1 SN - 1431-2174, 1431-2174 KW - Water Resources Abstracts; Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Microorganisms KW - Ground water KW - Groundwater KW - AQ 00006:Sewage KW - Q2 09171:Dynamics of lakes and rivers KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1291599255?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrogeology+Journal&rft.atitle=Preface+-+Groundwater+and+microbial+processes&rft.au=Bekins%2C+Barbara&rft.aulast=Bekins&rft.aufirst=Barbara&rft.date=2000-03-01&rft.volume=8&rft.issue=1&rft.spage=2&rft.isbn=&rft.btitle=&rft.title=Hydrogeology+Journal&rft.issn=14312174&rft_id=info:doi/10.1007%2Fs100400050002 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-01 N1 - Last updated - 2016-03-17 N1 - SubjectsTermNotLitGenreText - Ground water; Microorganisms; Groundwater DO - http://dx.doi.org/10.1007/s100400050002 ER - TY - JOUR T1 - Developmental toxicity of lead-contaminated sediment in Canada geese (Branta canadensis). AN - 70958495; 10706032 AB - Sediment ingestion has recently been identified as an important exposure route for toxicants in waterfowl. The effects of lead-contaminated sediment from the Coeur d'Alene River Basin (CDARB) in Idaho on posthatching development of Canada geese (Branta canadensis) were examined for 6 wk. Day-old goslings received either untreated control diet, clean sediment (48%) supplemented control diet, or CDARB sediment (3449 microg/g lead) supplemented diets at 12%, 24%, or 48%. The 12% CDARB diet resulted in a geometric mean blood lead concentration of 0.68 ppm (ww), with over 90% depression of red blood cell ALAD activity and over fourfold elevation of free erythrocyte protoporphyrin concentration. The 24% CDARB diet resulted in blood lead of 1.61 ppm with decreased hematocrit, hemoglobin, and plasma protein in addition to the effects just described. The 48% CDARB diet resulted in blood lead of 2.52 ppm with 22% mortality, decreased growth, and elevated plasma lactate dehydrogenase-L (LDH-L) activity. In this group the liver lead concentration was 6.57 ppm (ww), with twofold increases in hepatic lipid peroxidation (thiobarbituric acid-reactive substances, TBARS) and in reduced glutathione concentration; associated effects included elevated glutathione reductase activity but lower protein-bound thiols concentration and glucose-6-phosphate dehydrogenase (G-6-PDH) activity. The kidney lead concentration in this group was 14.93 ppm with subacute renal tubular nephrosis in one of the surviving goslings. Three other geese in this treatment group exhibited calcified areas of marrow, and one of these displayed severe chronic fibrosing pancreatitis. Lead from CDARB sediment accumulated less readily in gosling blood and tissues than reported in ducklings but at given concentrations was generally more toxic to goslings. Many of these effects were similar to those reported in wild geese and mallards within the Coeur d'Alene River Basin. JF - Journal of toxicology and environmental health. Part A AU - Hoffman, D J AU - Heinz, G H AU - Sileo, L AU - Audet, D J AU - Campbell, J K AU - LeCaptain, L J AU - Obrecht, H H AD - USGS Patuxent Wildlife Research Center, Laurel, Maryland 20708-4041, USA. david_hoffman@usgs.gov Y1 - 2000/02/25/ PY - 2000 DA - 2000 Feb 25 SP - 235 EP - 252 VL - 59 IS - 4 SN - 1528-7394, 1528-7394 KW - Environmental Pollutants KW - 0 KW - Water Pollutants KW - Lead KW - 2P299V784P KW - Index Medicus KW - Water Pollutants -- toxicity KW - Animals KW - Blood Chemical Analysis -- veterinary KW - Random Allocation KW - Water Pollutants -- blood KW - Kidney -- chemistry KW - Liver -- chemistry KW - Geologic Sediments KW - Survival Analysis KW - Environmental Pollutants -- toxicity KW - Geese -- growth & development KW - Geese -- blood KW - Lead -- toxicity KW - Animal Feed -- toxicity KW - Environmental Pollutants -- blood KW - Lead -- blood UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70958495?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+toxicology+and+environmental+health.+Part+A&rft.atitle=Developmental+toxicity+of+lead-contaminated+sediment+in+Canada+geese+%28Branta+canadensis%29.&rft.au=Hoffman%2C+D+J%3BHeinz%2C+G+H%3BSileo%2C+L%3BAudet%2C+D+J%3BCampbell%2C+J+K%3BLeCaptain%2C+L+J%3BObrecht%2C+H+H&rft.aulast=Hoffman&rft.aufirst=D&rft.date=2000-02-25&rft.volume=59&rft.issue=4&rft.spage=235&rft.isbn=&rft.btitle=&rft.title=Journal+of+toxicology+and+environmental+health.+Part+A&rft.issn=15287394&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-03-20 N1 - Date created - 2000-03-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Effect of stream channel size on the delivery of nitrogen to the Gulf of Mexico AN - 17483453; 4673812 AB - An increase in the flux of nitrogen from the Mississippi river during the latter half of the twentieth century has caused eutrophication and chronic seasonal hypoxia in the shallow waters of the Louisiana shelf in the northern Gulf of Mexico. This has led to reductions in species diversity, mortality of benthic communities and stress in fishery resources. There is evidence for a predominantly anthropogenic origin of the increased nitrogen flux, but the location of the most significant sources in the Mississippi basin responsible for the delivery of nitrogen to the Gulf of Mexico have not been clearly identified, because the parameters influencing nitrogen-loss rates in rivers are not well known. Here we present an analysis of data from 374 US monitoring stations, including 123 along the six larger tributaries to the Mississippi, that shows a rapid decline in the average first-order rate of nitrogen loss with channel size--from 0.45/day in small streams to 0.005/day in the Mississippi river. Using stream depth as an explanatory variable, our estimates of nitrogen-loss rates agreed with values from earlier studies. We conclude that the proximity of sources to large streams and rivers is an important determinant of nitrogen delivery to the estuary in the Mississippi basin, and possibly also in other large river basins. JF - Nature AU - Alexander, R B AU - Smith, R A AU - Schwarz, GE AD - US Geol. Surv., 413 National Centre, Reston, VA 20192, USA, ralex@usgs.gov Y1 - 2000/02/17/ PY - 2000 DA - 2000 Feb 17 SP - 758 EP - 761 PB - Macmillan Journals Ltd. VL - 403 IS - 6771 SN - 0028-0836, 0028-0836 KW - Mexico Gulf KW - USA, Louisiana KW - USA, Mississippi R. KW - Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Marine KW - Fluvial morphology KW - Pollution monitoring KW - ASW, USA, Louisiana KW - Eutrophication KW - Ammonia KW - River discharge KW - ASW, USA, Mexico Gulf KW - Channel flow KW - Nitrogen cycle KW - River Flow KW - Channel Flow KW - Runoff KW - Nitrogen KW - Environmental surveys KW - SW 0880:Chemical processes KW - Q2 09146:TSD distribution, water masses and circulation KW - Q5 08521:Mechanical and natural changes KW - O 4060:Pollution - Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17483453?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature&rft.atitle=Effect+of+stream+channel+size+on+the+delivery+of+nitrogen+to+the+Gulf+of+Mexico&rft.au=Alexander%2C+R+B%3BSmith%2C+R+A%3BSchwarz%2C+GE&rft.aulast=Alexander&rft.aufirst=R&rft.date=2000-02-17&rft.volume=403&rft.issue=6771&rft.spage=758&rft.isbn=&rft.btitle=&rft.title=Nature&rft.issn=00280836&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Pollution monitoring; Fluvial morphology; Channel flow; Eutrophication; Ammonia; River discharge; Nitrogen cycle; Environmental surveys; River Flow; Channel Flow; Runoff; Nitrogen; ASW, USA, Mexico Gulf; ASW, USA, Louisiana; Marine ER - TY - JOUR T1 - Hazard assessment of selenium and other trace elements in wild larval razorback sucker from the Green River, Utah. AN - 70853020; 10648132 AB - Contaminant investigations of the Green River in northeastern Utah have documented selenium contamination at sites receiving irrigation drainage. The Green River provides critical habitat for four endangered fishes including the largest extant riverine population of endangered razorback sucker. Although 2175 larval razorback suckers were collected from the river between 1992 and 1996, very few juveniles have been captured within recent decades. Selenium concentrations were measured in larval razorback suckers collected from five sites in the Green River (Cliff Creek, Stewart Lake Drain, Sportsman's Drain, Greasewood Corral, and Old Charlie Wash) to assess the potential for adverse effects on recruitment of larvae to the juvenile stage and the adult population. Larvae from all sites contained mean selenium concentrations ranging from 4.3 to 5.8 microg/g. These values were at or above the proposed toxic threshold of 4 microg/g for adverse biological effects in fish, which was derived from several laboratory and field studies with a wide range of fish species. At two sites, Cliff Creek and Stewart Lake Drain, selenium concentrations in larvae increased over time as fish grew, whereas selenium concentrations decreased as fish grew at Sportsman's Drain. Evaluation of a 279-larvae composite analyzed for 61 elements demonstrated that selenium and, to a lesser extent, vanadium were elevated to concentrations reported to be toxic to a wide range of fish species. Elevated selenium concentrations in larval razorback suckers from the five sites suggest that selenium contamination may be widespread in the Green River, and that survival and recruitment of larvae to the juvenile stage may be limited due to adverse biological effects. Selenium contamination may be adversely affecting the reproductive success and recruitment of endangered razorback sucker. Copyright 2000 Academic Press. JF - Ecotoxicology and environmental safety AU - Hamilton, S J AU - Muth, R T AU - Waddell, B AU - May, T W AD - U.S. Geological Survey, Columbia Environmental Research Center, Ecotoxicology Research Station, 31247 436th Avenue, Yankton, South Dakota, 57078-6364, USA. Steve_Hamilton@USGS.GOV Y1 - 2000/02// PY - 2000 DA - February 2000 SP - 132 EP - 147 VL - 45 IS - 2 SN - 0147-6513, 0147-6513 KW - Trace Elements KW - 0 KW - Water Pollutants KW - Vanadium KW - 00J9J9XKDE KW - Selenium KW - H6241UJ22B KW - Index Medicus KW - Animals KW - Vanadium -- analysis KW - Survival Rate KW - Fresh Water KW - Vanadium -- toxicity KW - Utah KW - Risk Assessment KW - Water Pollutants -- toxicity KW - Selenium -- analysis KW - Water Pollutants -- analysis KW - Selenium -- toxicity KW - Trace Elements -- toxicity KW - Trace Elements -- analysis KW - Fishes -- physiology KW - Larva -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70853020?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecotoxicology+and+environmental+safety&rft.atitle=Hazard+assessment+of+selenium+and+other+trace+elements+in+wild+larval+razorback+sucker+from+the+Green+River%2C+Utah.&rft.au=Hamilton%2C+S+J%3BMuth%2C+R+T%3BWaddell%2C+B%3BMay%2C+T+W&rft.aulast=Hamilton&rft.aufirst=S&rft.date=2000-02-01&rft.volume=45&rft.issue=2&rft.spage=132&rft.isbn=&rft.btitle=&rft.title=Ecotoxicology+and+environmental+safety&rft.issn=01476513&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2000-03-17 N1 - Date created - 2000-03-17 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Paleontological research in the national parks; opportunities in the new millennium AN - 52018554; 2003-017298 AB - The National Park Service administers more than 135 individual areas with documented paleontological resources. Paleontological research in parks, supported by the agency's natural resource guidelines, has resulted in many new scientific discoveries, including a new Allosaurid (Dinosaur National Monument), the first known Triassic bees' nest (Petrified Forest National Park), and an important assemblage of island mammoths (Channel Islands National Park). A series of National Park Service paleontological research volumes, published during the last decade, report on projects at more than 50 national parks and monuments. Park paleontological resource inventories at parks such as Yellowstone and Death Valley have identified research priorities and opportunities, as well as localities requiring additional resource management and protection. Cyclic monitoring in areas of high rates of erosion, such as John Day Fossil Beds National Monument and Badlands National Park, will help ensure that fossils are collected and preserved where appropriate. The National Park Service is moving towards encouraging more holistic and multidisciplinary approaches towards paleontological research. The Morrison Extinct Ecosystem Project serves as a prototype for this research perspective. Academic researchers, students, and paleontology interns have been recruited by parks to assist with park-identified research projects, and new electronic permit procedures will facilitate future work in parks. Agreements established with the U.S. Geological Survey, other federal land-management agencies, and academic institutions facilitate increased opportunities for paleontological research and long-term collections management. The newly established Cooperative Ecosystem Studies Units provide an additional vehicle to link university researchers with parks. The resulting paleontological research in parks supports the advance of science and better park management decisionmaking, thus ultimately benefiting the public. JF - Abstracts with Programs - Geological Society of America AU - Santucci, Vincent L AU - McClelland, Lindsay R AU - Anonymous Y1 - 2000/02// PY - 2000 DA - February 2000 SP - 71 EP - 72 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 1 SN - 0016-7592, 0016-7592 KW - United States KW - resources KW - Petrified Forest National Park KW - U. S. National Park Service KW - Death Valley National Park KW - Channel Islands National Park KW - John Day Fossil Beds National Monument KW - government agencies KW - Dinosaur National Monument KW - Badlands National Park KW - research KW - paleontology KW - Arizona KW - Yellowstone National Park KW - Morrison Extinct Ecosystem Project KW - South Dakota KW - 08:General paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52018554?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Paleontological+research+in+the+national+parks%3B+opportunities+in+the+new+millennium&rft.au=Santucci%2C+Vincent+L%3BMcClelland%2C+Lindsay+R%3BAnonymous&rft.aulast=Santucci&rft.aufirst=Vincent&rft.date=2000-02-01&rft.volume=32&rft.issue=1&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Northeastern Section, 35th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2003-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Arizona; Badlands National Park; Channel Islands National Park; Death Valley National Park; Dinosaur National Monument; government agencies; John Day Fossil Beds National Monument; Morrison Extinct Ecosystem Project; paleontology; Petrified Forest National Park; research; resources; South Dakota; U. S. National Park Service; United States; Yellowstone National Park ER - TY - JOUR T1 - Value added; opportunities for earth-science research to aid in national park management and visitor enjoyment AN - 52017117; 2003-017362 AB - The National Park Service has significant geologic resources in more than 180 parks and an annual visitation of 270 million people. Communication of geologic information can be an effective way for the National Park Service to meet its mission goals for resource protection, support for resource preservation, and visitor understanding of park significance. With less than 50 professional geologists in the NPS, there is ample opportunity for geoscientists to assist with the earth-science information needs of the NPS. The NPS has recently undertaken a new initiative to improve park management through greater reliance on scientific knowledge. The plan, called "The Natural Resource Challenge" also directs the parks to broadly promulgate the knowledge gained through scientific research in National Parks for the benefit of society. For scientists interested in conducting research in the National Parks, the plan will help by emphasizing parks as "centers for broad scientific research and inquiry". Researchers can help keep the geology interpretation program up-to-date and relevant by providing geologic information, site-specific details, and information on current critical management issues. Examples of how researchers have successfully shared earth-science information with NPS resource managers and park visitors will be given. JF - Abstracts with Programs - Geological Society of America AU - Wood, James F AU - McClelland, Lindsay R AU - Anonymous Y1 - 2000/02// PY - 2000 DA - February 2000 SP - 82 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 1 SN - 0016-7592, 0016-7592 KW - geology KW - U. S. Department of the Interior KW - natural resources KW - U. S. National Park Service KW - government agencies KW - national parks KW - research KW - public lands KW - information management KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52017117?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Value+added%3B+opportunities+for+earth-science+research+to+aid+in+national+park+management+and+visitor+enjoyment&rft.au=Wood%2C+James+F%3BMcClelland%2C+Lindsay+R%3BAnonymous&rft.aulast=Wood&rft.aufirst=James&rft.date=2000-02-01&rft.volume=32&rft.issue=1&rft.spage=82&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Northeastern Section, 35th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2003-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - geology; government agencies; information management; national parks; natural resources; public lands; research; U. S. Department of the Interior; U. S. National Park Service ER - TY - JOUR T1 - Surficial geologic mapping in Delaware Water Gap National Recreation Area; what is it good for? AN - 51323953; 2003-017360 AB - The Delaware Water Gap National Recreation Area (DEWA) contains about 70,000 acres of diverse eastern woodlands, rocky ridge crests, and riparian lands along a 40-mile stretch of the Delaware River in northwestern New Jersey and eastern Pennsylvania. Managed by the National Park Service, DEWA provides its visitors an exceptional opportunity to examine evidence of continental glaciation. The National Recreation Area also has a rich postglacial geological and archeological history preserved in the abandoned and modern flood plains of the Delaware River. Recent geologic mapping by the New Jersey and Pennsylvania Geological Surveys, and USGS under the STATEMAP and FEDMAP Programs has resulted in 1:24,000-scale coverage of DEWA. To promote the practical aspects of this work and garner support for additional mapping, several initiatives have been developed. First, geologic maps will be transformed into digital (ARCINFO) format and distributed to NPS staff on CD-ROM. This will aid decisions about the impact of infrastructure expansion, help delineate natural geologic hazards, and further develop a natural resource inventory. Secondly, to place greater emphasis on public outreach, work has begun on interpretive trail and field guides and other popular reports by USGS and N. J. Geological Survey geologists, and NPS staff. Thirdly, in partnership with the Sterling Hill Mining Museum GEMS Teacher Education Program, New Jersey Geological Survey geologists have established a pilot program to broaden the geologic knowledge of K-12 New Jersey and Pennsylvania Earth science educators through field experiences. Many diverse geologic features are readily accessible in DEWA and nearby High Point State Park, New Jersey. A series of field guides are being developed for teachers and students that present many aspects of the local geology, encourage observation of basic geological processes, and foster student interest in the environment. JF - Abstracts with Programs - Geological Society of America AU - Witte, Ron W AU - Epstein, Jack B AU - Cika, Rab AU - Anonymous Y1 - 2000/02// PY - 2000 DA - February 2000 SP - 82 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 1 SN - 0016-7592, 0016-7592 KW - United States KW - glaciation KW - geologic hazards KW - floodplains KW - ArcGIS KW - surficial geology KW - mapping KW - education KW - teacher education KW - educational resources KW - geographic information systems KW - digital cartography KW - CD-ROM KW - eastern Pennsylvania KW - cartography KW - ArcInfo KW - Delaware Water Gap National Recreation Area KW - riparian environment KW - K-12 education KW - northwestern New Jersey KW - fluvial features KW - information systems KW - New Jersey KW - Pennsylvania KW - Delaware River KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51323953?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Surficial+geologic+mapping+in+Delaware+Water+Gap+National+Recreation+Area%3B+what+is+it+good+for%3F&rft.au=Witte%2C+Ron+W%3BEpstein%2C+Jack+B%3BCika%2C+Rab%3BAnonymous&rft.aulast=Witte&rft.aufirst=Ron&rft.date=2000-02-01&rft.volume=32&rft.issue=1&rft.spage=82&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Northeastern Section, 35th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2003-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - ArcGIS; ArcInfo; cartography; CD-ROM; Delaware River; Delaware Water Gap National Recreation Area; digital cartography; eastern Pennsylvania; education; educational resources; floodplains; fluvial features; geographic information systems; geologic hazards; glaciation; information systems; K-12 education; mapping; New Jersey; northwestern New Jersey; Pennsylvania; riparian environment; surficial geology; teacher education; United States ER - TY - JOUR T1 - Observations of Health Indices Used to Monitor a Tailwater Trout Fishery AN - 17822323; 4856795 AB - Health of the population of rainbow trout Oncorhynchus mykiss in the San Juan River tailwater was monitored to determine the effects of potential crowding from a reduced winter flow test at Navajo Dam, north-western New Mexico. A systematic necropsy-based health profile provided a rapid method to detect gross changes in the health of the fish population. The health assessment index (HAI) was calculated to quantify the necropsy system and allow statistical comparisons of data sets. Other suborganismic indices were selected to encompass a range of responses specific to the stress of environmental alterations: physiology assessment using total protein and percent muscle lipids, an immune assessment using serum lysozyme, and a cellular-based evaluation using histology. The HAI values showed no clear trend in fish health, although significant differences occurred among fish samples during the test. Significant declines in condition factors and percent muscle lipids throughout the study suggested a seasonal effect. Total protein and lysozyme levels were variable, showing no discernible patterns. Most histological observations appeared to be incidental during the study. Although there was no clear demonstrable effect of altered flow on fish health, this study revealed the sensitivities of various health indicators, which may help in designing future studies and supporting or interpreting results using these approaches. JF - North American Journal of Fisheries Management AU - Sutton, R J AU - Caldwell, CA AU - Blazer, V S AD - U.S. Bureau of Reclamation, Denver Federal Center, Building 56, Post Office Box 25007 (D-8210), Denver, Colorado 80225-0007, USA, rsutton@do.usbr.gov Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 267 EP - 275 VL - 20 IS - 1 SN - 0275-5947, 0275-5947 KW - Rainbow trout KW - health index KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - Biological stress KW - USA, New Mexico KW - Serological studies KW - Population characteristics KW - Oncorhynchus mykiss KW - Freshwater KW - Commercial species KW - Lake fisheries KW - Sport fishing KW - Q5 08523:Conservation, wildlife management and recreation KW - Q1 08604:Stock assessment and management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17822323?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=North+American+Journal+of+Fisheries+Management&rft.atitle=Observations+of+Health+Indices+Used+to+Monitor+a+Tailwater+Trout+Fishery&rft.au=Sutton%2C+R+J%3BCaldwell%2C+CA%3BBlazer%2C+V+S&rft.aulast=Sutton&rft.aufirst=R&rft.date=2000-02-01&rft.volume=20&rft.issue=1&rft.spage=267&rft.isbn=&rft.btitle=&rft.title=North+American+Journal+of+Fisheries+Management&rft.issn=02755947&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Biological stress; Serological studies; Population characteristics; Commercial species; Sport fishing; Lake fisheries; Oncorhynchus mykiss; USA, New Mexico; Freshwater ER - TY - JOUR T1 - Migratory Behavior and Forebay Delay of Radio-Tagged Juvenile Fall Chinook Salmon in a Lower Snake River Impoundment AN - 17822247; 4856773 AB - During July and August 1995-1997, we used radiotelemetry to estimate the migration rate of 405 juvenile fall chinook salmon Oncorhynchus tshawytscha (mean fork length, 138-144 mm) through Little Goose Reservoir. Migration rates decreased significantly as fish approached the dam. Median migration rates in 1995 were 26.0 km/d through the 45.9-km reach immediately below Lower Granite Dam, 14.9 km/d through the next 14.4 km, and 0.8 km/d in the Little Goose Dam forebay (0.6 km). Median migration rates through the same reaches were consistent among years: 24.8, 13.4, and 0.8 km/d in 1996 and 20.2, 10.2, and 1.0 km/d in 1997. Most fish migrated through the upper 45.9 km within 5 d and through the lower two reaches (15.0 km) within an additional 5 d. However, 10% to 20% of the fish spent a week or more in the forebay and lower reservoir. Radio-tagged smolts displayed two behaviors after entering the forebay: crossing the forebay and upstream excursions. Study fish crossed the forebay an averange of 0.6-1.0 time/h, and 157 upstream excursions were identified, 15 of which were at least 14.4 km in length. Fish behavior in the forebay was associated with declining water velocities near the dam. Detections of passive integrated transponder tags suggest that similar delays occur in other lower Snake River reservoirs. Based on studies from the Columbia River, delays for 20% of the juvenile fall chinook salmon outmigrants in each of these forebays may have contributed to high predation losses and pose a serious challenge to efforts aimed at restoring this threatened salmon stock. JF - North American Journal of Fisheries Management AU - Venditti, DA AU - Rondorf, D W AU - Kraut, J M AD - U.S. Geological Survey, Biological Resources Division, Columbia River Research Laboratory, Cook, Washington 98605, USA, david_venditti@usgs.gov Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 41 EP - 52 VL - 20 IS - 1 SN - 0275-5947, 0275-5947 KW - Chinook salmon KW - Animal Behavior Abstracts; Ecology Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Rivers KW - Marine KW - USA, Snake R. KW - Sonic tags KW - Predation KW - Brackish KW - Freshwater KW - Oncorhynchus tshawytscha KW - Migration KW - Biotelemetry KW - Tracking KW - Migrations KW - Mortality causes KW - D 04700:Management KW - Q1 08421:Migrations and rhythms KW - Y 25655:Fish KW - O 5020:Fisheries and Fishery Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17822247?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=North+American+Journal+of+Fisheries+Management&rft.atitle=Migratory+Behavior+and+Forebay+Delay+of+Radio-Tagged+Juvenile+Fall+Chinook+Salmon+in+a+Lower+Snake+River+Impoundment&rft.au=Venditti%2C+DA%3BRondorf%2C+D+W%3BKraut%2C+J+M&rft.aulast=Venditti&rft.aufirst=DA&rft.date=2000-02-01&rft.volume=20&rft.issue=1&rft.spage=41&rft.isbn=&rft.btitle=&rft.title=North+American+Journal+of+Fisheries+Management&rft.issn=02755947&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Rivers; Sonic tags; Predation; Migrations; Mortality causes; Tracking; Biotelemetry; Migration; Oncorhynchus tshawytscha; USA, Snake R.; Freshwater; Brackish; Marine ER - TY - JOUR T1 - Physiological Development and Migratory Behavior of Subyearling Fall Chinook Salmon in the Columbia River AN - 17821121; 4856772 AB - We describe the migratory behavior and physiological development of subyearling fall chinook salmon Oncorhynchus tshawytscha migrating through John Day Reservoir on the Columbia River, Washington and Oregon. Fish were freeze-branded and coded-wire-tagged at McNary Dam, Oregon, from 1991 to 1994, to determine travel time to John Day Dam and subsequent adult contribution. Stepwise multiple regression showed that 47% of the variation in subyearling fall chinook salmon travel time was explained by the reciprocal of minimum flow and fish size. Smoltification, as measured by gill Na super(+)-K super(+) adenosine triphosphatase (ATPase) activity, was not important in explaining variability in travel time of subyearling chinook salmon. Fish marked early in the out-migration generally traveled faster than middle and late migrants. Seawater challenges were used to describe physiological development and showed that osmoregulatory competence of premigrants in the Hanford Reach of the Columbia River increased with fish size and gill ATPase activity. Once active migrants began passing McNary Dam, fish generally had survival exceeding 90% and were able to regulate their blood plasma Na super(+) in seawater. Gill ATPase activity increased as premigrants, reared in nearshore areas of the Hanford Reach, reached a peak among active migrants in late June and early July then decreased through the remainder of the out-migration. Salinity preference also peaked in subyearling fall chinook salmon during late June to mid July in 1995. Return of adults from marked groups showed no consistent patterns that would suggest a survival advantage for any portion of the juvenile out-migration. Presumed wild migrants from the middle and late portions of the out-migration were primary contributors to all fisheries, except the Priest Rapids Hatchery. As such, fishery managers should take action to ensure the survival of these fish, especially because they migrate under more unfavorable environmental conditions than early migrants. JF - North American Journal of Fisheries Management AU - Tiffan, K F AU - Rondorf, D W AD - U.S. Geological Survey, Biological Resources Division, Columbia River Research Laboratory, Cook, Washington 98605, USA, ken_tiffan@usgs.gov Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 28 EP - 40 VL - 20 IS - 1 SN - 0275-5947, 0275-5947 KW - Chinook salmon KW - USA, Oregon KW - USA, Washington KW - Animal Behavior Abstracts; Ecology Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Rivers KW - Marine KW - Biological development KW - Smolts KW - Brackish KW - Development KW - Freshwater KW - INE, USA KW - Oncorhynchus tshawytscha KW - Migration KW - Osmoregulation KW - USA, Washington, Columbia R. KW - Fish physiology KW - Body size KW - Stream flow rate KW - Migrations KW - USA, Oregon, Columbia R. KW - Q1 08421:Migrations and rhythms KW - Y 25655:Fish KW - D 04668:Fish KW - O 5020:Fisheries and Fishery Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17821121?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=North+American+Journal+of+Fisheries+Management&rft.atitle=Physiological+Development+and+Migratory+Behavior+of+Subyearling+Fall+Chinook+Salmon+in+the+Columbia+River&rft.au=Tiffan%2C+K+F%3BRondorf%2C+D+W&rft.aulast=Tiffan&rft.aufirst=K&rft.date=2000-02-01&rft.volume=20&rft.issue=1&rft.spage=28&rft.isbn=&rft.btitle=&rft.title=North+American+Journal+of+Fisheries+Management&rft.issn=02755947&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Rivers; Biological development; Fish physiology; Smolts; Migrations; Stream flow rate; Body size; Osmoregulation; Development; Migration; Oncorhynchus tshawytscha; USA, Washington, Columbia R.; USA, Oregon, Columbia R.; INE, USA; Freshwater; Brackish; Marine ER - TY - JOUR T1 - Influence of Atchafalaya River Discharge and Winter Frontal Passage on Suspended Sediment Concentration and Flux in Fourleague Bay, Louisiana AN - 17598240; 4709792 AB - Suspended sediment concentrations and fluxes between Fourleague Bay, Louisiana and the northern Gulf of Mexico were sampled every 3 h for 3 months to examine the importance of atmospheric cold fronts and riverine forcing on the functioning of this estuarine system. A cold front index was developed and used to identify major winter frontal passages likely to have the largest effects on material concentrations and transport. Suspended sediment concentrations ranged from 11 to 1527 mg l super(-1); the highest values occurred during winter frontal passages and the lowest during calm periods. High concentrations are generated by a continuous source of sediment from the Atchafalaya River and resuspension of benthic sediment via high intensity winds associated with cold fronts along with sufficient duration to keep the sediment in suspension. Spring peak discharge of the Atchafalaya River increased water levels and sediment concentrations in the bay leading to strong seasonal net exports of water (1.02 x 10 super(9) m super(3)) and sediment (1.72 x 10 super(8) kg) into the Gulf of Mexico through Oyster Bayou over the 89-day study. Net fluxes associated with tidal forcing were nearly balanced with a small net export due to freshwater input. The combination of high volumes of water originating from the northern bay and the restricted outlet to the Gulf often cause increased water levels and inundation of the surrounding marshes and potential advection of sediments onto the marsh surface. The results suggest that marsh drainage often increases the particulate organic carbon export as a result of marsh flushing. JF - Estuarine, Coastal and Shelf Science AU - Perez, B C AU - Day, J W AU - Rouse, L J AU - Shaw, R F AU - Wang, M AD - Johnson Controls World Services Inc, USGS National Wetlands Research Center, 700 Cajundome Blvd, Lafayette, LA 70506, U.S.A. Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 271 EP - 290 PB - Academic Press VL - 50 IS - 2 SN - 0272-7714, 0272-7714 KW - Mexico Gulf KW - USA, Louisiana, Atchafalaya R. KW - USA, Louisiana, Fourleague Bay KW - Water Resources Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Seasonal Variations KW - ASW, USA, Louisiana, Fourleague Bay KW - ASW, USA, Louisiana, Oyster Bayou KW - Advection KW - Winter KW - Resuspended sediments KW - Ocean-atmosphere system KW - Flood Peak KW - Sediment transport KW - Sampling KW - Sediment Concentration KW - Bays KW - Marine KW - Weather KW - Suspended Sediments KW - Resuspension KW - Organic Carbon KW - River discharge KW - Flow Discharge KW - Marshes KW - Water Level KW - ASW, Mexico Gulf KW - Salt marshes KW - Flushing KW - Atmospheric fronts KW - Sediment load KW - Bay dynamics KW - O 2010:Physical Oceanography KW - Q2 09264:Sediments and sedimentation KW - O 3050:Sediment Dynamics KW - SW 0870:Erosion and sedimentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17598240?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Estuarine%2C+Coastal+and+Shelf+Science&rft.atitle=Influence+of+Atchafalaya+River+Discharge+and+Winter+Frontal+Passage+on+Suspended+Sediment+Concentration+and+Flux+in+Fourleague+Bay%2C+Louisiana&rft.au=Perez%2C+B+C%3BDay%2C+J+W%3BRouse%2C+L+J%3BShaw%2C+R+F%3BWang%2C+M&rft.aulast=Perez&rft.aufirst=B&rft.date=2000-02-01&rft.volume=50&rft.issue=2&rft.spage=271&rft.isbn=&rft.btitle=&rft.title=Estuarine%2C+Coastal+and+Shelf+Science&rft.issn=02727714&rft_id=info:doi/10.1006%2Fecss.1999.0564 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Resuspended sediments; Salt marshes; Resuspension; River discharge; Ocean-atmosphere system; Sediment transport; Atmospheric fronts; Sediment load; Bay dynamics; Winter; Advection; Weather; Suspended Sediments; Seasonal Variations; Organic Carbon; Flow Discharge; Water Level; Marshes; Flushing; Flood Peak; Sampling; Sediment Concentration; Bays; ASW, Mexico Gulf; ASW, USA, Louisiana, Fourleague Bay; ASW, USA, Louisiana, Oyster Bayou; Marine DO - http://dx.doi.org/10.1006/ecss.1999.0564 ER - TY - JOUR T1 - Sediment-contact and survival of fingernail clams: Implications for conducting short-term laboratory tests AN - 17597716; 4700917 AB - Porewater toxicity tests have been used as indicators of whole sediment toxicity. However, many species commonly tested in porewater predominately reside in the water column and otherwise have little to no direct contact with sediment and associated porewater. We assessed the feasibility of porewater toxicity tests with fingernail clams Musculium transversum, a benthic macroinvertebrate that inhabits soft bottom sediments and feeds by filtering surface and porewater. Fingernail clams were exposed to water or sediment in a 96 h laboratory test with a 5x2 factorial experimental design. The five treatments included sediments from four sites in the Mississippi River and one sediment-free control (well water). In all treatments, clams were exposed to the sediments or water either directly (no enclosure) or indirectly (enclosure, suspended above the sediment surface). There were three replicates for each of the ten treatment combinations. Overall, survival of fingernail clams did not vary among the five treatments (p=0.36). In treatments without enclosures, survival of clams in the sediment-free control was not significantly different (p=0.34) from the sediment-containing treatments. Survival of clams in the sediment-free control averaged 85% - suggesting that direct sediment contact is not necessary for survival in short-term tests. In contrast, survival of clams in the sediment-containing treatments differed significantly (p=0.03) between exposures with (mean, 77%) and without (mean, 89%) enclosures. Thus, fingernail clams may provide an alternative species for evaluating benthic macroinvertebrates in short-term laboratory porewater tests. However, more information on their physiological requirements and the development of sublethal endpoints is recommended before their use in tests of longer duration. JF - Environmental Toxicology AU - Naimo, T J AU - Cope, W G AU - Bartsch, M R AD - U.S. Geological Survey, Biological Resources Division, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI 54603, USA, Teresa_Naimo@usgs.gov Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 23 EP - 27 VL - 15 IS - 1 SN - 1520-4081, 1520-4081 KW - Long fingernailclam KW - Musculium transversum KW - USA, Mississippi R. KW - Water Resources Abstracts; Pollution Abstracts; Toxicology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts KW - Bivalves (Clams) KW - Feasibility studies KW - Pore water KW - Animals (Invertebrates) (see also Individual groups) KW - Sediment KW - Survival KW - Macroinvertebrates KW - Benthic environment KW - Freshwater KW - Feasibility Studies KW - Invertebrata KW - Population Exposure KW - Pollution indicators KW - Testing Procedures KW - Bioindicators KW - Sediment pollution KW - Laboratory testing KW - Laboratories KW - Interstitial waters KW - Macrofauna KW - Interstitial Water KW - Toxicity KW - Clams KW - Sediments KW - Bivalvia KW - North America, Mississippi R. KW - Sublethal effects KW - Experimental Design KW - Toxicity (see also Lethal limits) KW - Toxicity testing KW - Indicator species KW - SW 5010:Network design KW - Q5 08504:Effects on organisms KW - AQ 00003:Monitoring and Analysis of Water and Wastes KW - X 24221:Toxicity testing KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17597716?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology&rft.atitle=Sediment-contact+and+survival+of+fingernail+clams%3A+Implications+for+conducting+short-term+laboratory+tests&rft.au=Naimo%2C+T+J%3BCope%2C+W+G%3BBartsch%2C+M+R&rft.aulast=Naimo&rft.aufirst=T&rft.date=2000-02-01&rft.volume=15&rft.issue=1&rft.spage=23&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology&rft.issn=15204081&rft_id=info:doi/10.1002%2F%28SICI%291522-7278%282000%2915%3A13.0.CO%3B2-5 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Pore water; Sediment pollution; Sublethal effects; Survival; Pollution indicators; Indicator species; Benthic environment; Toxicity testing; Feasibility studies; Bivalvia; Laboratory testing; Invertebrata; Macrofauna; Bivalves (Clams); Animals (Invertebrates) (see also Individual groups); Sediment; Interstitial waters; Toxicity (see also Lethal limits); Bioindicators; Testing Procedures; Feasibility Studies; Laboratories; Experimental Design; Macroinvertebrates; Toxicity; Interstitial Water; Population Exposure; Sediments; Clams; North America, Mississippi R.; Freshwater DO - http://dx.doi.org/10.1002/(SICI)1522-7278(2000)15:1<23::AID-TOX4>3.0.CO;2-5 ER - TY - JOUR T1 - Chronic toxicity and hazard assessment of an inorganic mixture simulating irrigation drainwater to razorback sucker and bonytail AN - 17596941; 4700920 AB - We conducted two 90 day chronic toxicity studies with two endangered fish, razorback sucker and bonytail. Swim-up larvae were exposed in a reconstituted water simulating the middle Green River. The toxicant mixture simulated the environmental ratio and concentrations of inorganics reported in a Department of the Interior study for the mouth of Ashley Creek on the Green River, and was composed of nine elements. The mixture was tested at 1X, 2X, 4X, 8X, and 16X where X was the measured environmental concentration (2 mu g/L arsenic, 630 mu g/L boron, 10 mu g/L copper, 5 mu g/L molybdenum, 51 mu g/L selenate, 8 mu g/L selenite, 33 mu g/L uranium, 2 mu g/L vanadium, and 20 mu g/L zinc). Razorback sucker had reduced survival after 60 days exposure to the inorganic mixture at 8X, whereas growth was reduced after 30 and 60 days at 2X and after 90 days at 4X. Bonytail had reduced survival after 30 days exposure at 16X, whereas growth was reduced after 30, 60, and 90 days at 8X. Swimming performance of razorback sucker and bonytail were reduced after 60 and 90 days of exposure at 8X. Whole-body residues of copper, selenium, and zinc increased in a concentration-response manner and seemed to be regulated at 90 days of exposure at 4X and lower treatments for razorback sucker, and at 8X and lower for bonytail. Adverse effects occurred in fish with whole-body residues of copper, selenium, and zinc similar to those causing similar effects in other fish species. Comparison of adverse effect concentrations with measured environmental concentrations showed a high hazard to the two endangered fish. Irrigation activities may be a contributing factor to the decline of these endangered fishes in the middle Green River. JF - Environmental Toxicology AU - Hamilton, S J AU - Buhl, K J AU - Bullard, F A AU - Little, EE AD - Columbia Environmental Research Center, Ecotoxicology Research Station, 31247 436th Avenue, Yankton, SD 57078-6364, USA, steve_hamilton@usgs.gov Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 48 EP - 64 VL - 15 IS - 1 SN - 1520-4081, 1520-4081 KW - Razorback sucker KW - USA, Green R. KW - bonytail KW - chronic exposure KW - endangered species KW - irrigation drainwater KW - razorback sucker KW - Water Resources Abstracts; Pollution Abstracts; Toxicology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts KW - Aquatic organisms KW - Inorganic compounds KW - Population Dynamics KW - Survival KW - Pollution effects KW - Copper KW - Freshwater KW - Hazards KW - Pisces KW - Selenium KW - Growth KW - Xyrauchen texanus KW - Dose-response effects KW - Zinc KW - Irrigation (see also Land treatment) KW - Stream Fisheries KW - Population Exposure KW - Freshwater pollution KW - USA, South Dakota KW - Testing Procedures KW - Larvae (see also Individual types) KW - Mortality KW - Irrigation systems KW - Irrigation KW - Larvae KW - Simulation KW - Toxicity KW - Rare species KW - Population statistics KW - Behavior KW - Endangered species KW - Toxicity (see also Lethal limits) KW - Toxicity testing KW - Drainage water KW - Mortality causes KW - Q5 08504:Effects on organisms KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of pollution KW - X 24162:Chronic exposure KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17596941?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology&rft.atitle=Chronic+toxicity+and+hazard+assessment+of+an+inorganic+mixture+simulating+irrigation+drainwater+to+razorback+sucker+and+bonytail&rft.au=Hamilton%2C+S+J%3BBuhl%2C+K+J%3BBullard%2C+F+A%3BLittle%2C+EE&rft.aulast=Hamilton&rft.aufirst=S&rft.date=2000-02-01&rft.volume=15&rft.issue=1&rft.spage=48&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology&rft.issn=15204081&rft_id=info:doi/10.1002%2F%28SICI%291522-7278%282000%2915%3A13.3.CO%3B2-7 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Irrigation; Pollution effects; Rare species; Toxicity; Mortality causes; Drainage water; Selenium; Zinc; Irrigation systems; Copper; Freshwater pollution; Pisces; Mortality; Aquatic organisms; Inorganic compounds; Growth; Behavior; Dose-response effects; Larvae; Endangered species; Toxicity testing; Larvae (see also Individual types); Survival; Irrigation (see also Land treatment); Toxicity (see also Lethal limits); Population statistics; Hazards; Testing Procedures; Population Dynamics; Simulation; Stream Fisheries; Population Exposure; Xyrauchen texanus; USA, South Dakota; Freshwater DO - http://dx.doi.org/10.1002/(SICI)1522-7278(2000)15:1<48::AID-TOX7>3.3.CO;2-7 ER - TY - JOUR T1 - Nutrients discharged to the Mississippi River from eastern Iowa watersheds, 1996-1997 AN - 17592029; 4704933 AB - The introduction of nutrients from chemical fertilizer, animal manure, wastewater, and atmospheric deposition to the eastern Iowa environment creates a large potential for nutrient transport in watersheds. Agriculture constitutes 93 percent of all land use in eastern Iowa. As part of the U.S. Geological Survey National Water Quality Assessment Program, water samples were collected (typically monthly) from six small and six large watersheds in eastern Iowa between March 1996 and September 1997. A Geographic Information System (GIS) was used to determine land use and quantify inputs of nitrogen and phosphorus within the study area. Streamflow from the watersheds is to the Mississippi River. Chemical fertilizer and animal manure account for 92 percent of the estimated total nitrogen and 99.9 percent of the estimated total phosphorus input in the study area. Total nitrogen and total phosphorus loads for 1996 were estimated for nine of the 12 rivers and creeks using a minimum variance unbiased estimator model. A seasonal pattern of concentrations and loads was observed. The greatest concentrations and loads occur in the late spring to early summer in conjunction with row-crop fertilizer applications and spring runoff and again in the late fall to early winter as vegetation goes into dormancy and additional fertilizer is applied to row-crop fields. The three largest rivers in eastern Iowa transported an estimated total of 79,000 metric tons of total nitrogen and 6,800 metric tons of total phosphorus to the Mississippi River in 1996. The estimated mass of total nitrogen and total phosphorus transported to the Mississippi River represents about 19 percent of all estimated nitrogen and 9 percent of all estimated phosphorus input to the study area. JF - Journal of the American Water Resources Association AU - Becher, K D AU - Schnoebelen, D J AU - Akers, KKB AD - U.S. Geological Survey, 400 South Clinton, Iowa City, IA 52240, USA, kdbecher@usgs.gov Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 161 EP - 174 VL - 36 IS - 1 SN - 1093-474X, 1093-474X KW - USA, Iowa KW - USA, Mississippi R. KW - Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Land Use KW - Manure KW - Path of Pollutants KW - Loading KW - Water Sampling KW - Pollution dispersion KW - Nutrients KW - Freshwater KW - USA, Wisconsin KW - Watersheds KW - Fertilizers KW - Catchment areas KW - Stream Pollution KW - Sampling KW - Geographical Information Systems KW - Estimating KW - Pollution Load KW - Land use KW - Pollution (Surface water) KW - Nutrients (mineral) KW - Geographical reference systems KW - Dispersion KW - Q5 08503:Characteristics, behavior and fate KW - AQ 00007:Industrial Effluents KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17592029?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Nutrients+discharged+to+the+Mississippi+River+from+eastern+Iowa+watersheds%2C+1996-1997&rft.au=Becher%2C+K+D%3BSchnoebelen%2C+D+J%3BAkers%2C+KKB&rft.aulast=Becher&rft.aufirst=K&rft.date=2000-02-01&rft.volume=36&rft.issue=1&rft.spage=161&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Fertilizers; Manure; Pollution dispersion; Geographical reference systems; Nutrients (mineral); Watersheds; Land use; Dispersion; Loading; Catchment areas; Pollution (Surface water); Nutrients; Sampling; Geographical Information Systems; Land Use; Path of Pollutants; Estimating; Water Sampling; Pollution Load; Stream Pollution; USA, Wisconsin; Freshwater ER - TY - JOUR T1 - Entrainment of riparian gravel and cobbles in an alluvial reach of a regulated canyon river AN - 17590690; 4691567 AB - Many canyon rivers have channels and riparian zones composed of alluvial materials and these reaches, dominated by fluvial processes, are sensitive to alterations in streamflow regime. Prior to reservoir construction in the mid-1960s, banks and bars in alluvial reaches of the Gunnison River in the Black Canyon National Monument, Colorado, USA, periodically were reworked and cleared of riparian vegetation by mainstem floods. Recent interest in maintaining near-natural conditions in the Black Canyon using reservoir releases has created a need to estimate sediment-entraining discharges for a variety of geomorphic surfaces composed of sediment ranging in size from gravel to small boulders. Sediment entrainment potential was studied at eight cross-sections in an alluvial reach of the Gunnison River in the Black Canyon in 1994 and 1995. A one-dimensional water-surface profile model was used to estimate water-surface elevations, flow depths, and hydraulic conditions on selected alluvial surfaces for discharges ranging from 57 to 570 m super(3)/s. Onsite observations before and after a flood of 270 m super(3)/s confirmed sediment entrainment on several surfaces inundated by the flood. Selective entrainment of all but the largest particle sizes on the surface occurred at some locations. Physical evidence of sediment entrainment, or absence of sediment entrainment, on inundated surfaces generally was consistent with critical shear stresses estimated with a dimensionless critical shear stress of 0.030. Sediment-entrainment potential over a range of discharges was summarized by the ratio of the local boundary shear stress to the critical shear stress for d sub(50), given hydraulic geometry and sediment-size characteristics. Differing entrainment potential for similar geomorphic surfaces indicates that estimation of minimum streamflow requirements based on sediment mobility is site-specific and that there is no unique streamflow that will initiate movement of d sub(50) at every geomorphically similar location in the Black Canyon. JF - Regulated Rivers: Research & Management AU - Elliott, J G AU - Hammack, LA AD - USGS WRD, Box 25046, MS 415 DFC, Lakewood, CO 80225-0046, USA Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 37 EP - 50 VL - 16 IS - 1 SN - 0886-9375, 0886-9375 KW - USA, Colorado, Gunnison R. KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Sediment Transport KW - Alluvial Rivers KW - Rivers KW - Particle size KW - Shear stress KW - Hydraulics KW - Entrainment KW - Gravel KW - Regulated Rivers KW - Particle Size KW - Fluvial Sediments KW - Cross-sections KW - Cobblestone KW - Streamflow KW - Geomorphology KW - Shear Stress KW - Sediment transport KW - Canyons KW - Water Surface Profiles KW - Q2 09264:Sediments and sedimentation KW - SW 0870:Erosion and sedimentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17590690?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Regulated+Rivers%3A+Research+%26+Management&rft.atitle=Entrainment+of+riparian+gravel+and+cobbles+in+an+alluvial+reach+of+a+regulated+canyon+river&rft.au=Elliott%2C+J+G%3BHammack%2C+LA&rft.aulast=Elliott&rft.aufirst=J&rft.date=2000-02-01&rft.volume=16&rft.issue=1&rft.spage=37&rft.isbn=&rft.btitle=&rft.title=Regulated+Rivers%3A+Research+%26+Management&rft.issn=08869375&rft_id=info:doi/10.1002%2F%28SICI%291099-1646%28200001%2F02%2916%3A13.3.CO%3B2-M LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Particle size; Rivers; Hydraulics; Shear stress; Entrainment; Geomorphology; Gravel; Cobblestone; Sediment transport; Alluvial Rivers; Sediment Transport; Regulated Rivers; Cross-sections; Fluvial Sediments; Particle Size; Streamflow; Shear Stress; Canyons; Water Surface Profiles DO - http://dx.doi.org/10.1002/(SICI)1099-1646(200001/02)16:1<37::AID-RRR564>3.3.CO;2-M ER - TY - JOUR T1 - Measuring stream discharge by non-contact methods: A proof-of-concept experiment AN - 17513203; 4700924 AB - This report describes an experiment to make a completely non-contact open-channel discharge measurement. A van-mounted, pulsed doppler (10GHz) radar collected surface-velocity data across the 183-m wide Skagit River, Washington at a USGS streamgaging station using Bragg scattering from short waves produced by turbulent boils on the surface of the river. Surface velocities were converted to mean velocities for 25 sub-sections by assuming a normal open-channel velocity profile (surface velocity times 0.85). Channel cross-sectional area was measured using a 100 MHz ground-penetrating radar antenna suspended from a cableway car over the river. Seven acoustic doppler current profiler discharge measurements and a conventional current-meter discharge measurement were also made. Three non-contact discharge measurements completed in about a 1-hour period were within 1% of the gaging station rating curve discharge values. With further refinements, it is thought that open-channel flow can be measured reliably by non-contact methods. JF - Geophysical Research Letters AU - Costa, JE AU - Spicer, K R AU - Cheng, R T AU - Haeni, F P AU - Melcher, N B AU - Thurman, E M AU - Plant, W J AU - Keller, W C AD - United States Geological Survey Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 553 EP - 556 VL - 27 IS - 4 SN - 0094-8276, 0094-8276 KW - USA, Washington, Skagit R. KW - Water Resources Abstracts KW - Acoustics KW - Profiles KW - Cross-sections KW - Gaging Stations KW - Radar KW - Flow Discharge KW - Velocity KW - Open-channel Flow KW - SW 5040:Data acquisition KW - SW 0835:Streamflow and runoff UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17513203?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Measuring+stream+discharge+by+non-contact+methods%3A+A+proof-of-concept+experiment&rft.au=Costa%2C+JE%3BSpicer%2C+K+R%3BCheng%2C+R+T%3BHaeni%2C+F+P%3BMelcher%2C+N+B%3BThurman%2C+E+M%3BPlant%2C+W+J%3BKeller%2C+W+C&rft.aulast=Costa&rft.aufirst=JE&rft.date=2000-02-01&rft.volume=27&rft.issue=4&rft.spage=553&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F1999GL006087 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Open-channel Flow; Profiles; Velocity; Radar; Gaging Stations; Acoustics; Flow Discharge; Cross-sections DO - http://dx.doi.org/10.1029/1999GL006087 ER - TY - JOUR T1 - Seasonal movements and pelagic habitat use of murres and puffins determined by satellite telemetry AN - 17502302; 4694031 AB - We tracked the movements of Common Murres (Uria aalge), Thick-billed Murres (U. lomvia), and Tufted Puffins (Fratercula cirrhata) using surgically implanted satellite transmitters. From 1994-1996, we tagged 53 birds from two colonies in the Gulf of Alaska (Middleton Island and Barren Islands) and two colonies in the Chukchi Sea (Cape Thompson and Cape Lisburne). Murres and puffins ranged 100 km or farther from all colonies in summer, but most instrumented birds had abandoned breeding attempts and their movements likely differed from those of actively breeding birds. However, murres whose movements in the breeding period suggested they still had chicks to feed foraged repeatedly at distances of 50-80 km from the Chukchi colonies in 1995. We detected no differences in the foraging patterns of males and females during the breeding season, nor between Thick-billed and Common Murres from mixed colonies. Upon chick departure from the northern colonies, male murres--some believed to be tending their flightless young--drifted with prevailing currents toward Siberia, whereas most females flew directly south toward the Bering Sea. Murres from Cape Thompson and Cape Lisburne shared a common wintering area in the southeastern Bering Sea in 1995, and birds from Cape Lisburne returned to the same area in the winter of 1996. We conclude that differences in foraging conditions during summer rather than differential mortality rates in winter account for contrasting population trends previously documented in those two colonies. JF - Condor AU - Hatch, SA AU - Meyers, P M AU - Mulcahy, D M AU - Douglas, D C AD - U.S. Geological Survey, Alaska Biological Science Center, 1011 East Tudor Road, Anchorage, AK 99503, USA, scott_hatch@usgs.gov Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 145 EP - 154 VL - 102 IS - 1 SN - 0010-5422, 0010-5422 KW - Brunnich's Guillemot KW - Common Guillemot KW - Common murre KW - Thick-billed murre KW - USA, Alaska KW - seasonal variations KW - Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Animal Behavior Abstracts; Ecology Abstracts KW - Marine KW - INE, Chukchi Sea KW - Foraging behavior KW - Males KW - Uria aalge KW - Sex differences KW - Habitat selection KW - Uria lomvia KW - Biotelemetry KW - Tracking KW - Breeding seasons KW - Local movements KW - Satellite sensing KW - Breeding status KW - Fratercula cirrhata KW - Feeding behaviour KW - Movements KW - Migrations KW - Females KW - INE, USA, Alaska, Alaska Gulf KW - O 1070:Ecology/Community Studies KW - Q1 08421:Migrations and rhythms KW - D 04671:Birds KW - Q1 08362:Geographical distribution KW - O 1050:Vertebrates, Urochordates and Cephalochordates KW - Y 25656:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17502302?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Condor&rft.atitle=Seasonal+movements+and+pelagic+habitat+use+of+murres+and+puffins+determined+by+satellite+telemetry&rft.au=Hatch%2C+SA%3BMeyers%2C+P+M%3BMulcahy%2C+D+M%3BDouglas%2C+D+C&rft.aulast=Hatch&rft.aufirst=SA&rft.date=2000-02-01&rft.volume=102&rft.issue=1&rft.spage=145&rft.isbn=&rft.btitle=&rft.title=Condor&rft.issn=00105422&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Breeding seasons; Satellite sensing; Local movements; Feeding behaviour; Males; Migrations; Females; Habitat selection; Tracking; Biotelemetry; Foraging behavior; Breeding status; Movements; Sex differences; Fratercula cirrhata; Uria aalge; Uria lomvia; INE, Chukchi Sea; INE, USA, Alaska, Alaska Gulf; Marine ER - TY - JOUR T1 - Post-release survival of hand-reared and parent-reared Mississippi sandhill cranes AN - 17500940; 4694027 AB - The Mississippi Sandhill Crane (Grus canadensis pulla) reintroduction program is the largest crane reintroduction effort in the world. Here we report on a 4-year experiment in which we compared post-release survival rates of 56 hand-reared and 76 parent-reared Mississippi Sandhill Cranes. First-year survival was 80%. Surprisingly, hand-reared cranes survived better than parent-reared birds, and the highest survival rates were for hand-reared juveniles released in mixed cohorts with parent-reared birds. Mixing improved survival most for parent-reared birds released with hand-reared birds. These results demonstrate that hand-rearing can produce birds which survive at least as well as parent-reared birds and that improved survival results from mixing hand-reared and parent-reared birds. JF - Condor AU - Ellis, D H AU - Gee, G F AU - Hereford, S G AU - Olsen, G H AU - Chisolm, T D AU - Nicolich, J M AU - Sullivan, KA AU - Thomas, N J AU - Nagendran, M AU - Hatfield, J S AD - USGS Patuxent Wildlife Research Center, 12302 Beech Forest Road, Laurel, MD 20708-4022, USA, david_h_ellis@usgs.gov Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 104 EP - 112 VL - 102 IS - 1 SN - 0010-5422, 0010-5422 KW - Mississippi sandhill crane KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts KW - Reintroduction KW - Stocking (organisms) KW - Survival KW - Rare species KW - Cultured organisms KW - Freshwater KW - Rearing KW - USA KW - Brood rearing KW - Grus canadensis pulla KW - Propagation KW - Aquatic birds KW - Q5 08523:Conservation, wildlife management and recreation KW - D 04671:Birds KW - Q1 08442:Population dynamics KW - Q1 08364:Reproduction and development KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17500940?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Condor&rft.atitle=Post-release+survival+of+hand-reared+and+parent-reared+Mississippi+sandhill+cranes&rft.au=Ellis%2C+D+H%3BGee%2C+G+F%3BHereford%2C+S+G%3BOlsen%2C+G+H%3BChisolm%2C+T+D%3BNicolich%2C+J+M%3BSullivan%2C+KA%3BThomas%2C+N+J%3BNagendran%2C+M%3BHatfield%2C+J+S&rft.aulast=Ellis&rft.aufirst=D&rft.date=2000-02-01&rft.volume=102&rft.issue=1&rft.spage=104&rft.isbn=&rft.btitle=&rft.title=Condor&rft.issn=00105422&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Rearing; Stocking (organisms); Survival; Cultured organisms; Rare species; Aquatic birds; Reintroduction; Brood rearing; Propagation; Grus canadensis pulla; USA; Freshwater ER - TY - JOUR T1 - Viability of piping plover Charadrius melodus metapopulations AN - 17490193; 4678453 AB - The metapopulation viability analysis package, VORTEX, was used to examine viability and recovery objectives for piping plovers Charadrius melodus, an endangered shorebird that breeds in three distinct regions of North America. Baseline models indicate that while Atlantic Coast populations, under current management practices, are at little risk of near-term extinction, Great Plains and Great Lakes populations require 36% higher mean fecundity for a significant probability of persisting for the next 100 years. Metapopulation structure (i.e. the delineation of populations within the metapopulation) and interpopulation dispersal rates had varying effects on model results; however, spatially-structured metapopulations exhibited lower viability than that reported for single-population models. The models were most sensitive to variation in survivorship; hence, additional mortality data will improve their accuracy. With this information, such models become useful tools in identifying successful management objectives; and sensitivity analyses, even in the absence of some data, may indicate which options are likely to be most effective. Metapopulation viability models are best suited for developing conservation strategies for achieving recovery objectives based on maintaining an externally derived, target population size and structure. JF - Biological Conservation AU - Plissner, J H AU - Haig, S M AD - USGS Forest and Rangeland Ecosystem Science Center, 3200 SW Jefferson Way, Corvallis, OR 97331, USA, haigs@fsl.orst.edu Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 163 EP - 173 VL - 92 IS - 2 SN - 0006-3207, 0006-3207 KW - North America KW - Piping plover KW - Viability KW - Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Marine birds KW - Extinction KW - Subpopulations KW - Charadrius melodus KW - Survival KW - Rare species KW - Population dynamics KW - ASW, North America KW - Models KW - USA, Great Plains KW - North America, Great Lakes KW - Nature conservation KW - Endangered species KW - Species extinction KW - ANW, North America KW - Metapopulations KW - Q5 08523:Conservation, wildlife management and recreation KW - O 4090:Conservation and Environmental Protection KW - D 04003:Modeling, mathematics, computer applications KW - Q1 08442:Population dynamics KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17490193?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biological+Conservation&rft.atitle=Viability+of+piping+plover+Charadrius+melodus+metapopulations&rft.au=Plissner%2C+J+H%3BHaig%2C+S+M&rft.aulast=Plissner&rft.aufirst=J&rft.date=2000-02-01&rft.volume=92&rft.issue=2&rft.spage=163&rft.isbn=&rft.btitle=&rft.title=Biological+Conservation&rft.issn=00063207&rft_id=info:doi/10.1016%2FS0006-3207%2899%2900050-6 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Marine birds; Subpopulations; Nature conservation; Survival; Rare species; Population dynamics; Species extinction; Extinction; Endangered species; Models; Metapopulations; Charadrius melodus; USA, Great Plains; North America, Great Lakes; ASW, North America; ANW, North America DO - http://dx.doi.org/10.1016/S0006-3207(99)00050-6 ER - TY - JOUR T1 - Nitrogen solutes in an Adirondack forested watershed: Importance of dissolved organic nitrogen AN - 17452718; 4668542 AB - Nitrogen (N) dynamics were evaluated from 1 June 1995 through 31 May 1996 within the Arbutus Lake watershed in the Adirondack Mountains of New York State, USA. At the Arbutus Lake outlet dissolved organic nitrogen (DON), NO sub(3) super(minus) and NH sub(4) super(plus) contributed 61%, 33%, and 6% respectively, to the total dissolved nitrogen (TDN) flux (259 mol ha super(minus 1) yr super(minus 1)). At the lake inlet DON, NO sub(3) super(minus), and NH sub(4) super(plus) constituted 36%, 61%, and 3% respectively, of TDN flux (349 mol ha super(minus 1) yr super(minus 1)). Differences between the factors that control DON, NO sub(3) super(minus), and NH sub(4) super(plus) stream water concentrations were evaluated using two methods for estimating annual N flux at the lake inlet. Using biweekly sampling NO sub(3) super(minus) and NH sub(4) super(plus) flux was 10 and 4 mol ha super(minus 1) yr super(minus 1) respectively, less than flux estimates using biweekly plus storm and snowmelt sampling. DON flux was 18 mol ha super(minus 1) yr super(minus 1) greater using only biweekly sampling. These differences are probably not of ecological significance relative to the total flux of N from the watershed (349 mol ha super(minus 1) yr super(minus 1)). Dissolved organic N concentrations were positively related to discharge during both the dormant (R super(2) = 0.31; P < 0.01) and growing season (R super(2) = 0.09; P < 0.01). There was no significant relationship between NO sub(3) super(minus) concentration and discharge during the dormant season, but a significant negative relationship was found during the growing season (R super(2) = 0.29; P < 0.01). Biotic controls in the growing season appeared to have had a larger impact on stream water NO sub(3) super(minus) concentrations than on DON concentrations. Arbutus Lake had a major impact on stream water N concentrations of the four landscape positions sampled, suggesting the need to quantify within lake processes to interpret N solute losses and patterns in watershed-lake systems. JF - Biogeochemistry AU - McHale, M R AU - Mitchell, MJ AU - McDonnell, J J AU - Cirmo, C P AD - State University of New York College of Environmental Science and Forestry, Faculty of Forestry, 1 Forestry Drive, Syracuse, NY 13210, U.S.A., mmchale@usgs.gov Y1 - 2000/02// PY - 2000 DA - Feb 2000 SP - 165 EP - 184 PB - Kluwer Academic Publishers VL - 48 IS - 2 SN - 0168-2563, 0168-2563 KW - USA, New York, Adirondack Mts. KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Rivers KW - Sediment chemistry KW - Organic nitrogen KW - Cycling Nutrients KW - Geochemistry KW - Watersheds KW - Streams KW - Nutrient cycles KW - Nitrogen KW - SW 0880:Chemical processes KW - Q2 09187:Geochemistry of sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17452718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biogeochemistry&rft.atitle=Nitrogen+solutes+in+an+Adirondack+forested+watershed%3A+Importance+of+dissolved+organic+nitrogen&rft.au=McHale%2C+M+R%3BMitchell%2C+MJ%3BMcDonnell%2C+J+J%3BCirmo%2C+C+P&rft.aulast=McHale&rft.aufirst=M&rft.date=2000-02-01&rft.volume=48&rft.issue=2&rft.spage=165&rft.isbn=&rft.btitle=&rft.title=Biogeochemistry&rft.issn=01682563&rft_id=info:doi/10.1023%2FA%3A1006121828108 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Rivers; Sediment chemistry; Organic nitrogen; Geochemistry; Watersheds; Nutrient cycles; Cycling Nutrients; Streams; Nitrogen DO - http://dx.doi.org/10.1023/A:1006121828108 ER - TY - JOUR T1 - Estimation of hydrocarbon biodegradation rates in gasoline-contaminated sediment from measured respiration rates AN - 17583793; 4682110 AB - An open microcosm method for quantifying microbial respiration and estimating biodegradation rates of hydrocarbons in gasoline-contaminated sediment samples has been developed and validated. Stainless-steel bioreactors are filled with soil or sediment samples, and the vapor-phase composition (concentrations of oxygen (O sub(2)), nitrogen (N sub(2)), carbon dioxide (CO sub(2)), and selected hydrocarbons) is monitored over time. Replacement gas is added as the vapor sample is taken, and selection of the replacement gas composition facilitates real-time decision-making regarding environmental conditions within the bioreactor. This capability allows for maintenance of field conditions over time, which is not possible in closed microcosms. Reaction rates of CO sub(2) and O sub(2) are calculated from the vapor-phase composition time series. Rates of hydrocarbon biodegradation are either measured directly from the hydrocarbon mass balance, or estimated from CO sub(2) and O sub(2) reaction rates and assumed reaction stoichiometries. Open microcosm experiments using sediments spiked with toluene and p-xylene were conducted to validate the stoichiometric assumptions. Respiration rates calculated from O sub(2) consumption and from CO sub(2) production provide estimates of toluene and p-xylene degradation rates within about plus or minus 50% of measured values when complete mineralization stoichiometry is assumed. Measured values ranged from 851.1 to 965.1 g m super(-3) year super(-1) for toluene, and 407.2-942.3 g m super(-3) year super(-1) for p-xylene. Contaminated sediment samples from a gasoline-spill site were used in a second set of microcosm experiments. Here, reaction rates of O sub(2) and CO sub(2) were measured and used to estimate hydrocarbon respiration rates. Total hydrocarbon reaction rates ranged from 49.0 g m super(-3) year super(-1) in uncontaminated (background) to 1040.4 g m super(-3) year super(-1) for highly contaminated sediment, based on CO sub(2) production data. These rate estimates were similar to those obtained independently from in situ CO sub(2) vertical gradient and flux determinations at the field site. In these experiments, aerobic conditions were maintained in the microcosms by using air as the replacement gas, thus preserving the ambient aerobic environment of the subsurface near the capillary zone. This would not be possible with closed microcosms. JF - Journal of Contaminant Hydrology AU - Baker, R J AU - Baehr, AL AU - Lahvis, MA AD - U.S. Geological Survey, 810 Bear Tavern Road, West Trenton, NJ 08628, USA, rbaker@usgs.gov Y1 - 2000/01/31/ PY - 2000 DA - 2000 Jan 31 SP - 175 EP - 192 VL - 41 IS - 1-2 SN - 0169-7722, 0169-7722 KW - Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Biodegradation KW - Gasoline KW - Respiration KW - Microbial Degradation KW - Bioreactors KW - Sediment Contamination KW - Quantitative Analysis KW - Experimental Data KW - Sediment pollution KW - Aerobic Conditions KW - Hydrocarbons KW - Estimating KW - Oxygen KW - Carbon dioxide KW - Contaminants KW - Carbon Dioxide KW - Pollution control KW - Q5 08503:Characteristics, behavior and fate KW - P 9000:ENVIRONMENTAL ACTION KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17583793?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=Estimation+of+hydrocarbon+biodegradation+rates+in+gasoline-contaminated+sediment+from+measured+respiration+rates&rft.au=Baker%2C+R+J%3BBaehr%2C+AL%3BLahvis%2C+MA&rft.aulast=Baker&rft.aufirst=R&rft.date=2000-01-31&rft.volume=41&rft.issue=1-2&rft.spage=175&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/10.1016%2FS0169-7722%2899%2900063-7 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Biodegradation; Respiration; Pollution control; Oxygen; Gasoline; Hydrocarbons; Bioreactors; Contaminants; Carbon dioxide; Experimental Data; Aerobic Conditions; Estimating; Microbial Degradation; Sediment Contamination; Quantitative Analysis; Carbon Dioxide DO - http://dx.doi.org/10.1016/S0169-7722(99)00063-7 ER - TY - JOUR T1 - Characteristic length scale of input data in distributed models: implications for modeling grid size AN - 17500364; 4693923 AB - The appropriate spatial scale for a distributed energy balance model was investigated by: (a) determining the scale of variability associated with the remotely sensed and GIS-generated model input data; and (b) examining the effects of input data spatial aggregation on model response. The semi-variogram and the characteristic length calculated from the spatial autocorrelation were used to determine the scale of variability of the remotely sensed and GIS-generated model input data. The data were collected from two hillsides at Upper Sheep Creek, a sub-basin of the Reynolds Creek Experimental Watershed, in southwest Idaho. The data were analyzed in terms of the semivariance and the integral of the autocorrelation. The minimum characteristic length associated with the variability of the data used in the analysis was 15 m. Simulated and observed radiometric surface temperature fields at different spatial resolutions were compared. The correlation between agreement simulated and observed fields sharply declined after a 10 x 10 m super(2) modeling grid size. A modeling grid size of about 10 x 10 m super(2) was deemed to be the best compromise to achieve: (a) reduction of computation time and the size of the support data; and (b) a reproduction of the observed radiometric surface temperature. JF - Journal of Hydrology (Amsterdam) AU - Artan, G A AU - Neale, CMU AU - Tarboton, D G AD - Raytheon STX Corporation, EROS Data Center, Sioux Falls, SD 57198, USA, gartan@edcmail.cr.usgs.gov Y1 - 2000/01/31/ PY - 2000 DA - 2000 Jan 31 SP - 128 EP - 139 PB - Elsevier Science B.V. VL - 227 IS - 1-4 SN - 0022-1694, 0022-1694 KW - USA, Idaho, Upper Sheep Creek KW - Aqualine Abstracts; Water Resources Abstracts KW - Remote Sensing KW - Energy (see also Power) KW - Hydrologic Models KW - Energy KW - Remote sensing KW - Modelling (Hydrological) KW - Data Interpretation KW - Geographical Information Systems KW - Model Studies KW - SW 5010:Network design KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17500364?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology+%28Amsterdam%29&rft.atitle=Characteristic+length+scale+of+input+data+in+distributed+models%3A+implications+for+modeling+grid+size&rft.au=Artan%2C+G+A%3BNeale%2C+CMU%3BTarboton%2C+D+G&rft.aulast=Artan&rft.aufirst=G&rft.date=2000-01-31&rft.volume=227&rft.issue=1-4&rft.spage=128&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology+%28Amsterdam%29&rft.issn=00221694&rft_id=info:doi/10.1016%2FS0022-1694%2899%2900176-6 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Model Studies; Energy; Hydrologic Models; Geographical Information Systems; Remote Sensing; Data Interpretation; USA, Idaho, Upper Sheep Creek; Energy (see also Power); Modelling (Hydrological); Remote sensing DO - http://dx.doi.org/10.1016/S0022-1694(99)00176-6 ER - TY - JOUR T1 - The Urban Environmental Gradient: Anthropogenic Influences on the Spatial and Temporal Distributions of Lead and Zinc in Sediments AN - 17655990; 4707821 AB - Urban settings are a focal point for environmental contamination due to emissions from industrial and municipal activities and the widespread use of motor vehicles. As part of the National Water-Quality Assessment Program of the U.S. Geological Survey, streambed-sediment and dated reservoir-sediment samples were collected from the Chattahoochee River Basin and analyzed for total lead (Pb) and zinc (Zn) concentrations. The sampling transect extends from northern Georgia, through Atlanta, to the Gulf of Mexico and reflects a steep gradient in population density from nearly 1000 people/km super(2) in the Atlanta Metropolitan Area to fewer than 50 people/km super(2) in rural areas of southern Georgia and northern Florida. Correlations among population density, traffic density, and total and anthropogenic Pb and Zn concentrations indicate that population density is strongly related to traffic density and is a predictor of Pb and Zn concentrations in the environment derived from anthropogenic activities. Differences in the distributions of total Pb and Zn concentrations along the urban-suburban-rural gradient from Atlanta to the Florida Panhandle are related to temporal and spatial processes. That is, with the removal of leaded gasoline starting in the late 1970s, peak Pb concentrations have decreased to the present. Conversely, increased vehicular usage has kept Zn concentrations elevated in runoff from population centers, which is reflected in the continued enrichment of Zn in aquatic sediments. Sediments from rural areas also contain elevated concentrations of Zn, possibly in response to substantial power plant emissions for the region, as well as vehicular traffic. JF - Environmental Science & Technology AU - Callender, E AU - Rice, K C AD - U.S. Geological Survey, National Center MS 432, 12201 Sunrise Valley Drive, Reston, Virginia 20192, USA, eccallen@usgs.gov Y1 - 2000/01/15/ PY - 2000 DA - 2000 Jan 15 SP - 232 EP - 238 VL - 34 IS - 2 SN - 0013-936X, 0013-936X KW - Mexico Gulf KW - USA, Chattahoochee R. KW - USA, Georgia, Atlanta, Chattahoochee R. KW - Sustainability Science Abstracts; Human Population; Aqualine Abstracts; Water Resources Abstracts; Pollution Abstracts KW - Gasoline KW - Motor vehicles KW - Population density KW - Spatial Distribution KW - Lead KW - Distribution (Mathematical) KW - Emissions KW - Sediment Contamination KW - Enrichment KW - Petroleum fuels KW - Temporal Distribution KW - Rivers KW - Contaminated sediments KW - Population statistics KW - Urban Areas KW - Runoff KW - Prediction KW - Human impact KW - Time dependent KW - Powerplants KW - Zinc KW - Power plants KW - Urban environments KW - Urban areas KW - Sediment pollution KW - Water pollution KW - Traffic KW - Population Density KW - M3 1010:Issues in Sustainable Development KW - P 2000:FRESHWATER POLLUTION KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of pollution KW - M1 220:Human Population-Hydrosphere Interactions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17655990?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=The+Urban+Environmental+Gradient%3A+Anthropogenic+Influences+on+the+Spatial+and+Temporal+Distributions+of+Lead+and+Zinc+in+Sediments&rft.au=Callender%2C+E%3BRice%2C+K+C&rft.aulast=Callender&rft.aufirst=E&rft.date=2000-01-15&rft.volume=34&rft.issue=2&rft.spage=232&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes990380s LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-07-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Urban Areas; Lead; Zinc; Sediment Contamination; Spatial Distribution; Temporal Distribution; Runoff; Powerplants; Population Density; Prediction; Enrichment; Gasoline; USA, Georgia, Atlanta, Chattahoochee R.; Mexico Gulf; Urban areas; Contaminated sediments; Distribution (Mathematical); Time dependent; Population statistics; Petroleum fuels; Sediment pollution; Rivers; Population density; Motor vehicles; Power plants; Emissions; Water pollution; Urban environments; Human impact; Traffic DO - http://dx.doi.org/10.1021/es990380s ER - TY - JOUR T1 - Negative pH and Extremely Acidic Mine Waters from Iron Mountain, California AN - 17651155; 4707824 AB - Extremely acidic mine waters with pH values as low as -3.6, total dissolved metal concentrations as high as 200 g/L, and sulfate concentrations as high as 760 g/L, have been encountered underground in the Richmond Mine at Iron Mountain, CA. These are the most acidic waters known. The pH measurements were obtained by using the Pitzer method to define pH for calibration of glass membrane electrodes. The calibration of pH below 0.5 with glass membrane electrodes becomes strongly nonlinear but is reproducible to a pH as low as -4. Numerous efflorescent minerals were found forming from these acid waters. These extreme acid waters were formed primarily by pyrite oxidation and concentration by evaporation with minor effects from aqueous ferrous iron oxidation and efflorescent mineral formation. JF - Environmental Science & Technology AU - Nordstrom, D K AU - Alpers, C N AU - Ptacek, C J AU - Blowes, D W AD - U.S. Geological Survey, Water Resources Division, 3215 Marine Street, Boulder, Colorado 80303, USA, dkn@usgs.gov Y1 - 2000/01/15/ PY - 2000 DA - 2000 Jan 15 SP - 254 EP - 258 VL - 34 IS - 2 SN - 0013-936X, 0013-936X KW - USA, California, Iron Mt. KW - Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Pollution Abstracts KW - Sulfates KW - Calibration KW - Mine tailings KW - Hydrogen ion concentrations KW - Sulphates KW - Mountains KW - Calibrations KW - Acidification KW - Acidity KW - pH KW - Metals KW - Acid Mine Drainage KW - Hydrogen Ion Concentration KW - Acid waters KW - Mining waste waters KW - Water pollution KW - Acidic Water KW - Electrodes KW - Oxidation KW - Analytical techniques KW - Mine water KW - Groundwater pollution KW - Minerals KW - Drainage water KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17651155?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Negative+pH+and+Extremely+Acidic+Mine+Waters+from+Iron+Mountain%2C+California&rft.au=Nordstrom%2C+D+K%3BAlpers%2C+C+N%3BPtacek%2C+C+J%3BBlowes%2C+D+W&rft.aulast=Nordstrom&rft.aufirst=D&rft.date=2000-01-15&rft.volume=34&rft.issue=2&rft.spage=254&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Analytical techniques; Acidification; Mine tailings; Water pollution; Drainage water; Mountains; Oxidation; Mine water; Groundwater pollution; Acidity; Minerals; pH; Metals; Electrodes; Calibration; Acid waters; Sulphates; Mining waste waters; Hydrogen ion concentrations; Acidic Water; Sulfates; Calibrations; Acid Mine Drainage; Hydrogen Ion Concentration ER - TY - JOUR T1 - Influences of dietary uptake and reactive sulfides on metal bioavailability from aquatic sediments AN - 17442616; 4654884 AB - Understanding how animals are exposed to the large repository of metal pollutants in aquatic sediments is complicated and is important in regulatory decisions. Experiments with four types of invertebrates showed that feeding behavior and dietary uptake control bioaccumulation of cadmium, silver, nickel, and zinc. Metal concentrations in animal tissue correlated with metal concentrations extracted from sediments, but not with metal in porewater, across a range of reactive sulfide concentrations, from 0.5 to 30 micromoles per gram. These results contradict the notion that metal bioavailability in sediments is controlled by geochemical equilibration of metals between porewater and reactive sulfides, a proposed basis for regulatory criteria for metals. JF - Science (Washington) AU - Lee, Byeong-Gweon AU - Griscom, S B AU - Lee, Jung-Suk AU - Choi, HJ AU - Koh, Chul-Hwan AU - Luoma, S N AU - Fisher, N S AD - US Geol. Surv., Water Resour. Div., Mail Stop 465, 345 Middlefield Rd., Menlo Park, CA 94025, USA, bglee@usgs.gov Y1 - 2000/01/14/ PY - 2000 DA - 2000 Jan 14 SP - 282 EP - 284 PB - American Association for the Advancement of Science VL - 287 IS - 5451 SN - 0036-8075, 0036-8075 KW - Water Resources Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Diets KW - Marine KW - Sediment pollution KW - Heavy metals KW - Sulfides KW - Brackish KW - Toxicity KW - Interstitial Water KW - Freshwater KW - Pollution legislation KW - Toxicity tests KW - Heavy Metals KW - Sulphides KW - Bioaccumulation KW - Sediment Contamination KW - Feeding experiments KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17442616?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+%28Washington%29&rft.atitle=Influences+of+dietary+uptake+and+reactive+sulfides+on+metal+bioavailability+from+aquatic+sediments&rft.au=Lee%2C+Byeong-Gweon%3BGriscom%2C+S+B%3BLee%2C+Jung-Suk%3BChoi%2C+HJ%3BKoh%2C+Chul-Hwan%3BLuoma%2C+S+N%3BFisher%2C+N+S&rft.aulast=Lee&rft.aufirst=Byeong-Gweon&rft.date=2000-01-14&rft.volume=287&rft.issue=5451&rft.spage=282&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.287.5451.282 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sulphides; Sediment pollution; Bioaccumulation; Heavy metals; Feeding experiments; Pollution legislation; Toxicity tests; Diets; Sulfides; Sediment Contamination; Interstitial Water; Toxicity; Heavy Metals; Marine; Brackish; Freshwater DO - http://dx.doi.org/10.1126/science.287.5451.282 ER - TY - JOUR T1 - Effects of the Flood of 1993 on the Chemical Characteristics of Bed Sediments in the Upper Mississippi River AN - 755137207; 13635344 AB - Concentrations of pollutants stored in the surficial bed sediments in the navigation pools of the Upper Mississippi River showed a general decrease after the record flood of 1993. Percent clay and total organic carbon in the surficial sediments decreased as a result of an increase in the proportion of coarser sediment. Decreases in pollutant concentration may have been a result of the dilution by coarser and relatively less polluted sediment that was mobilized and transported into the Upper Mississippi River from its tributaries or from mainstem locations upstream but outside of the sampling area. JF - Water, Air, & Soil Pollution AU - Moody, John A AU - Sullivan, John F AU - Taylor, Howard E AD - U.S. Geological Survey, MS 413, Box 25046, Denver Federal Center, Lakewood, Colorado, 80225-0046, USA, jamoody@usgs.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 329 EP - 351 PB - Springer-Verlag, Tiergartenstrasse 17 Heidelberg 69121 Germany VL - 117 IS - 1-4 SN - 0049-6979, 0049-6979 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts; Environment Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Fluvial Sediments KW - Bed Load KW - Freshwater KW - upstream KW - Pollutants KW - Floods KW - Total organic carbon KW - Sediment Contamination KW - Sampling KW - Tributaries KW - Rivers KW - Sediment pollution KW - Sediment chemistry KW - Clay KW - Atmospheric pollution KW - Soil contamination KW - Navigation KW - Sediments KW - Water pollution KW - Soil pollution KW - Air pollution KW - navigation KW - Q5 08503:Characteristics, behavior and fate KW - Q2 09185:Organic compounds KW - M2 556:General (556) KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/755137207?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water%2C+Air%2C+%26+Soil+Pollution&rft.atitle=Effects+of+the+Flood+of+1993+on+the+Chemical+Characteristics+of+Bed+Sediments+in+the+Upper+Mississippi+River&rft.au=Moody%2C+John+A%3BSullivan%2C+John+F%3BTaylor%2C+Howard+E&rft.aulast=Moody&rft.aufirst=John&rft.date=2000-01-01&rft.volume=117&rft.issue=1-4&rft.spage=329&rft.isbn=&rft.btitle=&rft.title=Water%2C+Air%2C+%26+Soil+Pollution&rft.issn=00496979&rft_id=info:doi/10.1023%2FA%3A1005143103441 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-09-01 N1 - Last updated - 2014-05-02 N1 - SubjectsTermNotLitGenreText - Rivers; Air pollution; Sediment chemistry; Sediment pollution; Pollutants; Total organic carbon; Floods; Tributaries; Water pollution; Soil pollution; Atmospheric pollution; upstream; Clay; navigation; Soil contamination; Sediments; Bed Load; Fluvial Sediments; Sediment Contamination; Sampling; Navigation; Freshwater DO - http://dx.doi.org/10.1023/A:1005143103441 ER - TY - JOUR T1 - Wintering greater scaup as biomonitors of metal contamination in federal wildlife refuges in the Long Island region. AN - 70799478; 10556375 AB - Tissues of greater scaup (Aythya marila mariloides) and components of their habitat (sediment, plankton, macroalgae, and invertebrates) were collected for heavy metal analysis in the winter of 1996-97 from US Department of the Interior wildlife refuges in the Long Island region. Geographic and temporal relationships between the concentration of nine metals in tissue and in habitat components were examined. In greater scaup tissues and habitat components, concentrations of As and Se were highest in Branford, Connecticut; Pb values were greatest in Oyster Bay, New York; and Hg concentrations were largest in Sandy Hook, New Jersey. Over the course of the winter, the concentration of Hg in liver increased, and concentrations of Cd, Cr, Cu, Hg, Pb, Se, and Zn in kidney decreased. Based on several criteria derived from geographic and temporal trends, metals were ranked using the apparent biomonitoring efficacy of greater scaup (As = Cr > Cu = Pb = Zn = Hg > Se = Cd > Ni). Although the seasonal migration and daily mobility of greater scaup are drawbacks to using this species as a sentinel for metal pollution, it was possible to demonstrate a relationship between geographic and temporal patterns of metals in habitat and greater scaup tissue. However, most metal concentrations in tissue were below thresholds known to adversely affect health of waterfowl. JF - Archives of environmental contamination and toxicology AU - Cohen, J B AU - Barclay, J S AU - Major, A R AU - Fisher, J P AD - Wildlife Conservation Research Center, Department of Natural Resources Management and Engineering, University of Connecticut, Box U-87, Storrs, Connecticut 06269-4087, USA. Jonathan_Cohen@usgs.gov Y1 - 2000/01// PY - 2000 DA - January 2000 SP - 83 EP - 92 VL - 38 IS - 1 SN - 0090-4341, 0090-4341 KW - Metals, Heavy KW - 0 KW - Water Pollutants, Chemical KW - Selenium KW - H6241UJ22B KW - Index Medicus KW - Animals KW - Geologic Sediments -- chemistry KW - Kidney -- metabolism KW - Selenium -- pharmacokinetics KW - Seawater -- analysis KW - Liver -- metabolism KW - Tissue Distribution KW - Kidney -- chemistry KW - Liver -- chemistry KW - Animals, Wild KW - Plankton -- chemistry KW - Selenium -- analysis KW - Seasons KW - New England KW - Mid-Atlantic Region KW - Environmental Monitoring -- methods KW - Male KW - Metals, Heavy -- pharmacokinetics KW - Water Pollutants, Chemical -- analysis KW - Water Pollutants, Chemical -- pharmacokinetics KW - Ducks -- metabolism KW - Metals, Heavy -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70799478?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+environmental+contamination+and+toxicology&rft.atitle=Wintering+greater+scaup+as+biomonitors+of+metal+contamination+in+federal+wildlife+refuges+in+the+Long+Island+region.&rft.au=Cohen%2C+J+B%3BBarclay%2C+J+S%3BMajor%2C+A+R%3BFisher%2C+J+P&rft.aulast=Cohen&rft.aufirst=J&rft.date=2000-01-01&rft.volume=38&rft.issue=1&rft.spage=83&rft.isbn=&rft.btitle=&rft.title=Archives+of+environmental+contamination+and+toxicology&rft.issn=00904341&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-12-27 N1 - Date created - 1999-12-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Effects of contaminants in dredge material from the lower Savannah River. AN - 70792202; 10556380 AB - Contaminants entering aquatic systems from agricultural, industrial, and municipal activities are generally sequestered in bottom sediments. The environmental significance of contaminants associated with sediments dredged from Savannah Harbor, Georgia, USA, are unknown. To evaluate potential effects of contaminants in river sediments and sediments dredged and stored in upland disposal areas on fish and wildlife species, solid-phase sediment and sediment pore water from Front River, Back River, an unnamed Tidal Creek on Back River, and Middle River of the distributary system of the lower Savannah River were tested for toxicity using the freshwater amphipod Hyalella azteca. In addition, bioaccumulation of metals from sediments collected from two dredge-disposal areas was determined using the freshwater oligochaete Lumbriculus variegatus. Livers from green-winged teals (Anas crecca) and lesser yellowlegs (Tringa flavipes) foraging in the dredge-spoil areas and raccoons (Procyon lotor) from the dredge-disposal/river area and an upland site were collected for metal analyses. Survival of H. azteca was not reduced in solid-phase sediment exposures, but was reduced in pore water from several locations receiving drainage from dredge-disposal areas. Basic water chemistry (ammonia, alkalinity, salinity) was responsible for the reduced survival at several sites, but PAHs, metals, and other unidentified factors were responsible at other sites. Metal residues in sediments from the Tidal Creek and Middle River reflected drainage or seepage from adjacent dredge-disposal areas, which could potentially reduce habitat quality in these areas. Trace metals increased in L. variegatus exposed in the laboratory to dredge-disposal sediments; As, Cu, Hg, Se, and Zn bioaccumulated to concentrations higher than those in the sediments. Certain metals (Cd, Hg, Mo, Se) were higher in livers of birds and raccoons than those in dredge-spoil sediments suggesting bioavailability. Cadmium, Cr, Hg, Pb, and Se in livers from raccoons collected near the river and dredge-disposal areas were significantly higher than those of raccoons from the upland control site. Evidence of bioaccumulation from laboratory and field evaluations and concentrations in sediments from dredge-disposal areas and river channels demonstrated that some metals in the dredge-disposal areas are mobile and biologically available. Drainage from dredge-disposal areas may be impacting habitat quality in the river, and fish and wildlife that feed and nest in the disposal areas on the lower Savannah River may be at risk from metal contamination. JF - Archives of environmental contamination and toxicology AU - Winger, P V AU - Lasier, P J AU - White, D H AU - Seginak, J T AD - USGS Patuxent Wildlife Research Center, Warnell School of Forest Resources, University of Georgia, Athens, Georgia 30602, USA. Y1 - 2000/01// PY - 2000 DA - January 2000 SP - 128 EP - 136 VL - 38 IS - 1 SN - 0090-4341, 0090-4341 KW - Metals, Heavy KW - 0 KW - Water Pollutants, Chemical KW - Index Medicus KW - Animals KW - Fresh Water -- chemistry KW - Metals, Heavy -- pharmacokinetics KW - Environmental Exposure KW - Liver -- metabolism KW - Raccoons -- metabolism KW - Georgia KW - Liver -- chemistry KW - Ducks -- metabolism KW - Metals, Heavy -- analysis KW - Biological Availability KW - Oligochaeta -- drug effects KW - Geologic Sediments -- analysis KW - Water Pollutants, Chemical -- toxicity KW - Crustacea -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70792202?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Archives+of+environmental+contamination+and+toxicology&rft.atitle=Effects+of+contaminants+in+dredge+material+from+the+lower+Savannah+River.&rft.au=Winger%2C+P+V%3BLasier%2C+P+J%3BWhite%2C+D+H%3BSeginak%2C+J+T&rft.aulast=Winger&rft.aufirst=P&rft.date=2000-01-01&rft.volume=38&rft.issue=1&rft.spage=128&rft.isbn=&rft.btitle=&rft.title=Archives+of+environmental+contamination+and+toxicology&rft.issn=00904341&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-12-27 N1 - Date created - 1999-12-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Unusual July 10, 1996, rock fall at Happy Isles, Yosemite National Park, California AN - 52393332; 2000-016406 AB - Effects of the July 10, 1996, rock fall at Happy Isles in Yosemite National Park, California, were unusual compared to most rock falls. Two main rock masses fell about 14 s apart from a 665-m-high cliff southeast of Glacier Point onto a talus slope above Happy Isles in the eastern part of Yosemite Valley. The two impacts were recorded by seismographs as much as 200 km away. Although the impact area of the rock falls was not particularly large, the falls generated an airblast and an abrasive dense sandy cloud that devastated a larger area downslope of the impact sites toward the Happy Isles Nature Center. Immediately downslope of the impacts, the airblast had velocities exceeding 110 m/s and toppled or snapped about 1000 trees. Even at distances of 0.5 km from impact, wind velocities snapped or toppled large trees, causing one fatality and several serious injuries beyond the Happy Isles Nature Center. A dense sandy cloud trailed the airblast and abraded fallen trunks and trees left standing. The Happy Isles rock fall is one of the few known worldwide to have generated an airblast and abrasive dense sandy cloud. The relatively high velocity of the rock fall at impact, estimated to be 110-120 m/s, influenced the severity and areal extent of the airblast at Happy Isles. Specific geologic and topographic conditions, typical of steep glaciated valleys and mountainous terrain, contributed to the rock-fall release and determined its travel path, resulting in a high velocity at impact that generated the devastating airblast and sandy cloud. The unusual effects of this rock fall emphasize the importance of considering collateral geologic hazards, such as airblasts from rock falls, in hazard assessment and planning development of mountainous areas. JF - Geological Society of America Bulletin AU - Wieczorek, Gerald F AU - Snyder, James B AU - Waitt, Richard B AU - Morrissey, Meghan M AU - Uhrhammer, Robert A AU - Harp, Edwin L AU - Norris, Robert D AU - Bursik, Marcus I AU - Finewood, Lee G Y1 - 2000/01// PY - 2000 DA - January 2000 SP - 75 EP - 85 PB - Geological Society of America (GSA), Boulder, CO VL - 112 IS - 1 SN - 0016-7606, 0016-7606 KW - United States KW - rock masses KW - Happy Isles KW - rockfalls KW - geologic hazards KW - grain size KW - California KW - planning KW - dynamics KW - mass movements KW - velocity KW - Glacier Point KW - broad-band spectra KW - Yosemite National Park KW - algorithms KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52393332?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geological+Society+of+America+Bulletin&rft.atitle=Unusual+July+10%2C+1996%2C+rock+fall+at+Happy+Isles%2C+Yosemite+National+Park%2C+California&rft.au=Wieczorek%2C+Gerald+F%3BSnyder%2C+James+B%3BWaitt%2C+Richard+B%3BMorrissey%2C+Meghan+M%3BUhrhammer%2C+Robert+A%3BHarp%2C+Edwin+L%3BNorris%2C+Robert+D%3BBursik%2C+Marcus+I%3BFinewood%2C+Lee+G&rft.aulast=Wieczorek&rft.aufirst=Gerald&rft.date=2000-01-01&rft.volume=112&rft.issue=1&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=Geological+Society+of+America+Bulletin&rft.issn=00167606&rft_id=info:doi/10.1130%2F0016-7606%282000%291122.3.CO%3B2 L2 - http://www.gsajournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2000-01-01 N1 - PubXState - CO N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - SuppNotes - Includes appendix N1 - Last updated - 2012-06-07 N1 - CODEN - BUGMAF N1 - SubjectsTermNotLitGenreText - algorithms; broad-band spectra; California; dynamics; geologic hazards; Glacier Point; grain size; Happy Isles; mass movements; planning; rock masses; rockfalls; United States; velocity; Yosemite National Park DO - http://dx.doi.org/10.1130/0016-7606(2000)112<0075:UJRFAH>2.3.CO;2 ER - TY - JOUR T1 - Airborne laser mapping of Assateague National Seashore beach AN - 52338193; 2000-049241 AB - Results are presented from topographic surveys of the Assateague Island National Seashore using an airborne scanning laser altimeter and kinematic Global Positioning System (GPS) technology. The instrument used was the Airborne Topographic Mapper (ATM), developed by the NASA Arctic Ice Mapping (AIM) group from the Goddard Space Flight Center's Wallops Flight Facility. In November, 1995, and again in May, 1996, these topographic surveys were flown as a functionality check prior to conducting missions to measure the elevation of extensive sections of the Greenland Ice Sheet as part of NASA's Global Climate Change program. Differences between overlapping portions of both surveys are compared for quality control. An independent assessment of the accuracy of the ATM survey is provided by comparison to surface surveys which were conducted using standard techniques. The goal of these projects is to make these measurements to an accuracy of + or -10 cm. Differences between the fall 1995 and 1996 surveys provides an assessment of net changes in the beach morphology over an annual cycle. JF - Photogrammetric Engineering and Remote Sensing AU - Krabill, W B AU - Wright, C W AU - Swift, R N AU - Frederick, E B AU - Manizade, S S AU - Yungel, J K AU - Martin, C F AU - Sonntag, J G AU - Duffy, Mark AU - Hulslander, William AU - Brock, John C Y1 - 2000/01// PY - 2000 DA - January 2000 SP - 65 EP - 71 PB - American Society of Photogrammetry, Falls Church, VA VL - 66 IS - 1 SN - 0099-1112, 0099-1112 KW - United States KW - shore features KW - Global Positioning System KW - monitoring KW - laser methods KW - geophysical surveys KW - annual variations KW - erosion KW - kinematics KW - beaches KW - Assateague Island KW - topography KW - surveys KW - coastal environment KW - Maryland KW - geomorphology KW - Delmarva Peninsula KW - Assateague National Seashore KW - littoral erosion KW - remote sensing KW - Atlantic Coastal Plain KW - airborne methods KW - 23:Geomorphology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52338193?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Photogrammetric+Engineering+and+Remote+Sensing&rft.atitle=Airborne+laser+mapping+of+Assateague+National+Seashore+beach&rft.au=Krabill%2C+W+B%3BWright%2C+C+W%3BSwift%2C+R+N%3BFrederick%2C+E+B%3BManizade%2C+S+S%3BYungel%2C+J+K%3BMartin%2C+C+F%3BSonntag%2C+J+G%3BDuffy%2C+Mark%3BHulslander%2C+William%3BBrock%2C+John+C&rft.aulast=Krabill&rft.aufirst=W&rft.date=2000-01-01&rft.volume=66&rft.issue=1&rft.spage=65&rft.isbn=&rft.btitle=&rft.title=Photogrammetric+Engineering+and+Remote+Sensing&rft.issn=00991112&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 13 N1 - PubXState - VA N1 - Document feature - illus. incl. 4 plates, sketch map N1 - Last updated - 2013-06-13 N1 - CODEN - PGMEA9 N1 - SubjectsTermNotLitGenreText - airborne methods; annual variations; Assateague Island; Assateague National Seashore; Atlantic Coastal Plain; beaches; coastal environment; Delmarva Peninsula; erosion; geomorphology; geophysical surveys; Global Positioning System; kinematics; laser methods; littoral erosion; Maryland; monitoring; remote sensing; shore features; surveys; topography; United States ER - TY - JOUR T1 - A geologic guide to Wrangell-Saint Elias National Park and Preserve, Alaska; a tectonic collage of northbound terranes AN - 52312200; 2000-069698 AB - Wrangell-Saint Elias National Park and Preserve, the largest unit in the U.S. National Park System, encompasses near 13.2 million acres of geological wonderments. This geologic guide presents history of exploration and Earth-science investigation; describes the complex geologic makeup; characterizes the vast college of accretion geologic terranes in this area of Alaska's continental margin; recapitulates the effects of earthquakes, volcanoes, and glaciers; characterizes the copper and gold resources of the parklands; and describes outstanding locales within the park and preserve area. A glossary of geologic terms and a categorized list of additional sources of information complete this report. JF - U. S. Geological Survey Professional Paper AU - Winkler, Gary R AU - MacKevett, Edward M, Jr AU - Plafker, George AU - Richter, Donald H AU - Rosenkrans, Danny S AU - Schmoll, Henry R Y1 - 2000 PY - 2000 DA - 2000 SP - 166 PB - U. S. Geological Survey, Reston, VA SN - 1044-9612, 1044-9612 KW - United States KW - mineral exploration KW - resources KW - North America KW - Wrangell-Saint Elias National Park and Preserve KW - tectonic elements KW - petrology KW - Wrangell Mountains KW - national parks KW - glaciers KW - terranes KW - public lands KW - areal geology KW - Southern Alaska KW - metal ores KW - volcanoes KW - gold ores KW - copper ores KW - Saint Elias Mountains KW - Alaska KW - tectonics KW - USGS KW - earthquakes KW - 13:Areal geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52312200?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Winkler%2C+Gary+R%3BMacKevett%2C+Edward+M%2C+Jr%3BPlafker%2C+George%3BRichter%2C+Donald+H%3BRosenkrans%2C+Danny+S%3BSchmoll%2C+Henry+R&rft.aulast=Winkler&rft.aufirst=Gary&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=A+geologic+guide+to+Wrangell-Saint+Elias+National+Park+and+Preserve%2C+Alaska%3B+a+tectonic+collage+of+northbound+terranes&rft.title=A+geologic+guide+to+Wrangell-Saint+Elias+National+Park+and+Preserve%2C+Alaska%3B+a+tectonic+collage+of+northbound+terranes&rft.issn=10449612&rft_id=info:doi/ L2 - http://pubs.usgs.gov/pp/p1616/ http://pubs.er.usgs.gov/browse/usgs-publications/PP LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Document feature - illus. incl. strat. cols., geol. sketch maps N1 - SuppNotes - Prepared in cooperation with the National Park Service; Alaska Natural History Museum N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - Alaska; areal geology; copper ores; earthquakes; glaciers; gold ores; metal ores; mineral exploration; national parks; North America; petrology; public lands; resources; Saint Elias Mountains; Southern Alaska; tectonic elements; tectonics; terranes; United States; USGS; volcanoes; Wrangell Mountains; Wrangell-Saint Elias National Park and Preserve ER - TY - JOUR T1 - Tephrochronology of the Brooks River archaeological district, Katmai National Park and Preserve, Alaska; what can and cannot be done with tephra deposits AN - 52307307; 2000-070149 AB - The Brooks River Archaeological District (BRAD) in Katmai National Park and Preserve is a classical site for the study of early humans in Alaska. Because of proximity to the active Aleutian volcanic arc, there are numerous tephra deposits in the BRAD, which are potentially useful for correlating among sites of archaeological investigations. Microprobe analyses of glass separates show, however, that most of these tephra deposits are heterogeneous mixtures of multiple glass populations. Some glasses are highly similar to pyroclasts of Aniakchak Crater (160 km to the south), others are similar to pyroclasts in the nearby Valley of Ten Thousand Smokes, and some are similar to no other tephra samples from the Alaska Peninsula. Moreover, tephra deposits in any one archaeological study site are not always similar to those from nearby sites, indicating inconsistent preservation of these mainly thin, fine-grained deposits. At least 15, late Holocene tephra deposits are inferred at the BRAD. Their heterogeneity is the result of either eruptions of mixed or heterogeneous magmas, like the 1912 Katmai eruption, or secondary mixing of closely succeeding tephra deposits. Because most cannot be reliably distinguished from one another on the basis of megascopic properties, their utility for correlations is limited. At least one deposit can be reliably identified because of its thickness (10 cm) and colour stratification. Early humans seem not to have been significantly affected by these tephra falls, which is not surprising in view of the resilience exhibited by both plants and animals following the 1912 Katmai eruption. JF - Geological Society Special Publications AU - Riehle, James R AU - Dumond, Don E AU - Meyer, Charles E AU - Schaaf, Jeanne M A2 - McGuire, W. J. A2 - Griffiths, D. R. A2 - Hancock, P. L. A2 - Stewart, I. S. Y1 - 2000 PY - 2000 DA - 2000 SP - 245 EP - 266 PB - Geological Society of London, London VL - 171 SN - 0305-8719, 0305-8719 KW - United States KW - anthropology KW - volcanic rocks KW - glasses KW - igneous rocks KW - Alaska Peninsula KW - Holocene KW - electron probe data KW - Cenozoic KW - geochronology KW - dates KW - Brooks River KW - tephrochronology KW - archaeology KW - Quaternary KW - Valley of Ten Thousand Smokes KW - pyroclastics KW - Aniakchak Crater KW - archaeological sites KW - Katmai KW - Katmai National Park KW - Alaska KW - Southwestern Alaska KW - upper Holocene KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52307307?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geological+Society+Special+Publications&rft.atitle=Tephrochronology+of+the+Brooks+River+archaeological+district%2C+Katmai+National+Park+and+Preserve%2C+Alaska%3B+what+can+and+cannot+be+done+with+tephra+deposits&rft.au=Riehle%2C+James+R%3BDumond%2C+Don+E%3BMeyer%2C+Charles+E%3BSchaaf%2C+Jeanne+M&rft.aulast=Riehle&rft.aufirst=James&rft.date=2000-01-01&rft.volume=171&rft.issue=&rft.spage=245&rft.isbn=1862390622&rft.btitle=&rft.title=Geological+Society+Special+Publications&rft.issn=03058719&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 31 N1 - Document feature - illus. incl. 6 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - GSLSBW N1 - SubjectsTermNotLitGenreText - Alaska; Alaska Peninsula; Aniakchak Crater; anthropology; archaeological sites; archaeology; Brooks River; Cenozoic; dates; electron probe data; geochronology; glasses; Holocene; igneous rocks; Katmai; Katmai National Park; pyroclastics; Quaternary; Southwestern Alaska; tephrochronology; United States; upper Holocene; Valley of Ten Thousand Smokes; volcanic rocks ER - TY - JOUR T1 - Information technology tools for estimating costs of surface mining reclamation AN - 52287706; 2001-002696 AB - There are thousands of operating and abandoned surface mining sites in the US. These sites, which include metal, industrial mineral, and coal mining operations, are in various stages of operation and closure. Abandoned mines, waste dumps and tailings piles, if left unreclaimed, can result in sediment runoff or acid mine drainage, which degrades stream and river water quality, hampers recreation, destroys fish and fisheries, and taints water supplies. Leachate from these mines can contaminate groundwater supplies with heavy metals, acidity or alkalinity, or radionuclides. Mine owners and operators, as well as regulatory agencies, need to be able to budget and schedule construction, operations and closure in order to avoid potential environmental damage. In addition,once impacts have occurred, a tool is needed to develop budgetary costs for reclamation and cleanup of those abandoned sites. Program and detailed budgets can be developed quickly and accurately using Parametric-based automated cost estimating software programs. PROSPECTOR (super TM) (Pit Reclamation Engineering Cost Tool) is a tool that can be used to accurately forecast mine reclamation costs. In addition to quantitative computer-based cost estimating, mining operations can benefit from qualitative estimating tools by using decision support and uncertainty estimating software such as Expert Choice, DPL (Decision Programming Language), and Crystal Ball. These tools are beneficial in the decision-making process when life cycle cost estimates are similar and there is a fine line between alternatives. Issues such as uncertainty, environmental constraints, regulatory requirements, community acceptance, and safety requirements may tip the balance toward one option over another. This paper focuses on cost estimating tools and qualitative decision-support tools which can be used in hard rock and industrial mineral mine reclamation and cleanup. Discussion will be provided on tools that can be used to develop budgets and detailed estimates. Mining reclamation examples using these tools will also be discussed. A subset of the presentation will include a discussion on Parametric cost estimating and the PROSPECTOR (super TM) model. JF - Proceedings of the Annual National Meeting - American Society for Surface Mining and Reclamation AU - Reid, M E AU - Craynon, J R A2 - Daniels, W. Lee A2 - Richardson, Steven G. Y1 - 2000 PY - 2000 DA - 2000 SP - 459 EP - 466 PB - American Society for Surface Mining and Reclamation, [location varies] VL - 17 KW - mines KW - acid mine drainage KW - reclamation KW - data processing KW - cost KW - remediation KW - models KW - computer programs KW - information technology KW - tailings KW - land use KW - abandoned mines KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52287706?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Annual+National+Meeting+-+American+Society+for+Surface+Mining+and+Reclamation&rft.atitle=Information+technology+tools+for+estimating+costs+of+surface+mining+reclamation&rft.au=Reid%2C+M+E%3BCraynon%2C+J+R&rft.aulast=Reid&rft.aufirst=M&rft.date=2000-01-01&rft.volume=17&rft.issue=&rft.spage=459&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Annual+National+Meeting+-+American+Society+for+Surface+Mining+and+Reclamation&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seventeenth annual meeting of the American Society for Surface Mining and Reclamation N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 10 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #03219 N1 - SubjectsTermNotLitGenreText - abandoned mines; acid mine drainage; computer programs; cost; data processing; information technology; land use; mines; models; reclamation; remediation; tailings ER - TY - JOUR T1 - Computer applications for hydrologic analysis in mining and reclamation AN - 52287649; 2001-002690 AB - Since the mid-1980's, the Office of Surface Mining (OSM), in cooperation with State and Tribal coal regulatory and reclamation agencies, has employed a series of technical software tools, under the framework of a program known as the Technical Information Processing System (TIPS). The TIPS program also provides state-of-the-art technical workstations to our State and Tribal partners for use and administration of these software tools. Currently, UNIX-based workstations and software are being replaced by new workstations and servers operating Microsoft Windows NT. This has necessitated a re-evaluation of the technical software to bring legacy UNIX and DOS-based applications to an NT-platform standard. In 1999, a team of State and OSM scientists and engineers evaluated off-the-shelf hydrologic software. The functional areas covered by this review are: (1) aquifer test analyses: software used to evaluate aquifer parameters such as hydraulic conductivity, transmissivity, and storativity; (2) ground-water flow and contaminant transport modeling: application of aquifer parameter data and a U. S. Geological Survey-developed modeling code (MODFLOW) to a conceptual model of subsurface flow and transport conditions for evaluations of ground-water flow and contaminant transport; (3) watershed chemistry and storm runoff analysis: software for studying watershed surface-water quality and storm/runoff characteristics in both small and large watersheds; (4) erosion and sedimentation/channel and impoundment design: supplements to the existing core TIPS software SEDCAD and SURVCADD; and (5) water chemistry analysis: hydrochemical software used for statistical and graphical analysis of both baseline and post-mining data. Used together these hydrologic tools in conjunction with other geologic and engineering software form a powerful analytical software toolbox for scientists and engineers conducting permit review and reclamation design as mandated by the Surface Control and Reclamation Act (SMCRA) of 1977. JF - Proceedings of the Annual National Meeting - American Society for Surface Mining and Reclamation AU - Behum, Paul T AU - Parsons, Stephen C A2 - Daniels, W. Lee A2 - Richardson, Steven G. Y1 - 2000 PY - 2000 DA - 2000 SP - 317 EP - 329 PB - American Society for Surface Mining and Reclamation, [location varies] VL - 17 KW - solute transport KW - hydrology KW - mining KW - mines KW - pollutants KW - reclamation KW - data processing KW - coal mines KW - watersheds KW - analysis KW - ground water KW - aquifers KW - models KW - computer programs KW - drawdown KW - transport KW - hydraulic conductivity KW - Office of Surface Mining KW - design KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52287649?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Annual+National+Meeting+-+American+Society+for+Surface+Mining+and+Reclamation&rft.atitle=Computer+applications+for+hydrologic+analysis+in+mining+and+reclamation&rft.au=Behum%2C+Paul+T%3BParsons%2C+Stephen+C&rft.aulast=Behum&rft.aufirst=Paul&rft.date=2000-01-01&rft.volume=17&rft.issue=&rft.spage=317&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Annual+National+Meeting+-+American+Society+for+Surface+Mining+and+Reclamation&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seventeenth annual meeting of the American Society for Surface Mining and Reclamation N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 13 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #03219 N1 - SubjectsTermNotLitGenreText - analysis; aquifers; coal mines; computer programs; data processing; design; drawdown; ground water; hydraulic conductivity; hydrology; mines; mining; models; Office of Surface Mining; pollutants; reclamation; solute transport; transport; watersheds ER - TY - JOUR T1 - Achieving approximate original contour in mountain top mining AN - 52286555; 2001-002699 AB - The definition of approximate original contour (AOC), as found in the Surface Mining Control and Reclamation Act of 1977 (SMCRA), requires that the final surface configuration of the land, after backfilling and grading, closely resemble the general surface configuration of the land prior to mining while maintaining the necessary flexibility to accommodate site specific conditions. The mining operation and the final reclaimed site must not only meet AOC standards, but also satisfy numerous other safety and environmental requirements for slope stability, access, drainage, and water pollution control. Other factors that affect final configuration are the diversity of the terrain, and climatic, biological, chemical and other physical conditions in the area along with their impact on fish, wildlife, and related environmental values. This paper describes guidelines developed jointly by the Office of Surface Mining (OSM) and the West Virginia Division of Environmental Protection (WVDEP) AOC Team to provide a rational objective approach for determination of AOC and excess spoil volumes while adhering to the regulatory and environmental requirements. This guideline is currently being tested in West Virginia by the WVDEP with technical assistance from OSM. The guideline is also being used as the basis for the AOC portion of a Federal Court settlement agreement in West Virginia. JF - Proceedings of the Annual National Meeting - American Society for Surface Mining and Reclamation AU - Superfesky, Michael J A2 - Daniels, W. Lee A2 - Richardson, Steven G. Y1 - 2000 PY - 2000 DA - 2000 SP - 487 EP - 492 PB - American Society for Surface Mining and Reclamation, [location varies] VL - 17 KW - water quality KW - mining KW - surface mining KW - regulations KW - reclamation KW - drainage KW - pollution KW - environmental analysis KW - mountains KW - topography KW - spoils KW - Surface Mining Control and Reclamation Act 1977 KW - land management KW - design KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52286555?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Annual+National+Meeting+-+American+Society+for+Surface+Mining+and+Reclamation&rft.atitle=Achieving+approximate+original+contour+in+mountain+top+mining&rft.au=Superfesky%2C+Michael+J&rft.aulast=Superfesky&rft.aufirst=Michael&rft.date=2000-01-01&rft.volume=17&rft.issue=&rft.spage=487&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Annual+National+Meeting+-+American+Society+for+Surface+Mining+and+Reclamation&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seventeenth annual meeting of the American Society for Surface Mining and Reclamation N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 2 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #03219 N1 - SubjectsTermNotLitGenreText - design; drainage; environmental analysis; land management; mining; mountains; pollution; reclamation; regulations; spoils; surface mining; Surface Mining Control and Reclamation Act 1977; topography; water quality ER - TY - JOUR T1 - Comparison between predicted and observed subsidence along a buried concrete waterline mined under by a longwall panel AN - 52286545; 2001-002682 AB - This paper compares the results of the observed subsidence and displacement to a 30-inch diameter concrete waterline by longwall mining with subsidence and displacement predicted using Surface Deformation Prediction System (SDPS) model. The SDPS model has been developed recently by the Virginia Polytechnic Institute and State University (VPI & SU) for the Office and Surface Mining Reclamation and Enforcement (OSM) and demonstrated good correlation. The model also predicts the strains, slope and the curvature. Thereby any potential damages to gas lines, highways, railroad, streams, and hazardous waste fills can be ascertained. These can be minimized or prevented by taking necessary measures. JF - Proceedings of the Annual National Meeting - American Society for Surface Mining and Reclamation AU - Kohli, Kewal K AU - Uranowski, Lois A2 - Daniels, W. Lee A2 - Richardson, Steven G. Y1 - 2000 PY - 2000 DA - 2000 SP - 144 EP - 147 PB - American Society for Surface Mining and Reclamation, [location varies] VL - 17 KW - United States KW - mining KW - geologic hazards KW - Washington County Pennsylvania KW - underground mining KW - strain KW - engineering properties KW - land subsidence KW - deformation KW - pipelines KW - depth KW - concrete KW - burial KW - models KW - Washington Pennsylvania KW - longwall mining KW - Pennsylvania KW - construction materials KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52286545?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Annual+National+Meeting+-+American+Society+for+Surface+Mining+and+Reclamation&rft.atitle=Comparison+between+predicted+and+observed+subsidence+along+a+buried+concrete+waterline+mined+under+by+a+longwall+panel&rft.au=Kohli%2C+Kewal+K%3BUranowski%2C+Lois&rft.aulast=Kohli&rft.aufirst=Kewal&rft.date=2000-01-01&rft.volume=17&rft.issue=&rft.spage=144&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Annual+National+Meeting+-+American+Society+for+Surface+Mining+and+Reclamation&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seventeenth annual meeting of the American Society for Surface Mining and Reclamation N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 5 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #03219 N1 - SubjectsTermNotLitGenreText - burial; concrete; construction materials; deformation; depth; engineering properties; geologic hazards; land subsidence; longwall mining; mining; models; Pennsylvania; pipelines; strain; underground mining; United States; Washington County Pennsylvania; Washington Pennsylvania ER - TY - JOUR T1 - Physical and chemical characteristics of small coal refuse piles AN - 52283534; 2001-002706 AB - Numerous small coal refuse piles dot the landscape in the eastern coal producing areas. These refuse piles most often are aesthetic eyesores and contribute to water quality degradation due to AMD and excessive sediment discharged to receiving streams. These refuse piles generally constitute priority 3 problems under OSM Title IV abandoned mine lands (AML) program. Due to the low priority and limited funding of the AML program, there is little likelihood for their reclamation. Local stakeholders favor corrective action regarding these wastes due to their contribution to the pollution of surface and ground water, to a degrading esthetic effect and to the loss of land values occupied by the piles. This study reviews chemical and physical characteristics of selected refuse piles and the environmental problems that they cause. It presents data showing size and location of these features. The study covers six states in Appalachia (Alabama, Kentucky, Ohio, Pennsylvania, Virginia, and West Virginia). It also reviews past and current approaches to reclamation and remediation of the environmental problems associated with the piles. Identification of small refuse piles and their physical and chemical characteristics will greatly aid their cleanup and subsequent reclamation by the economical removal of the coal contained within the piles. These piles constitute a viable resource. Data presented in this report indicate that it is economically feasible to remine many of these piles--they still contain burnable coal and thus can be burned directly in small cogeneration facilities or cleaned at modern facilities to recover the coal. Other uses for coal refuse may include: surface and subsurface fill, road base, light weight aggregate, cement, mineral-chemical recovery, and mixing with a cohesive material to form a low cost briquette fuel. JF - Proceedings of the Annual National Meeting - American Society for Surface Mining and Reclamation AU - Brant, D L AU - Sypolt, S AU - Ziemkiewicz, P F AU - Growitz, D A2 - Daniels, W. Lee A2 - Richardson, Steven G. Y1 - 2000 PY - 2000 DA - 2000 SP - 557 EP - 567 PB - American Society for Surface Mining and Reclamation, [location varies] VL - 17 KW - United States KW - North America KW - Virginia KW - pollutants KW - reclamation KW - pollution KW - Appalachians KW - coal fields KW - environmental analysis KW - Alabama KW - physical properties KW - sedimentary rocks KW - Surface Mining Control and Reclamation Act 1977 KW - coal KW - chemical properties KW - Kentucky KW - Pennsylvania KW - tailings KW - land use KW - West Virginia KW - Ohio KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52283534?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Annual+National+Meeting+-+American+Society+for+Surface+Mining+and+Reclamation&rft.atitle=Physical+and+chemical+characteristics+of+small+coal+refuse+piles&rft.au=Brant%2C+D+L%3BSypolt%2C+S%3BZiemkiewicz%2C+P+F%3BGrowitz%2C+D&rft.aulast=Brant&rft.aufirst=D&rft.date=2000-01-01&rft.volume=17&rft.issue=&rft.spage=557&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Annual+National+Meeting+-+American+Society+for+Surface+Mining+and+Reclamation&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seventeenth annual meeting of the American Society for Surface Mining and Reclamation N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 7 N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #03219 N1 - SubjectsTermNotLitGenreText - Alabama; Appalachians; chemical properties; coal; coal fields; environmental analysis; Kentucky; land use; North America; Ohio; Pennsylvania; physical properties; pollutants; pollution; reclamation; sedimentary rocks; Surface Mining Control and Reclamation Act 1977; tailings; United States; Virginia; West Virginia ER - TY - JOUR T1 - Enhanced computer software applications for mining and reclamation AN - 52282100; 2001-002689 AB - The use of computer technologies in mining and reclamation has grown tremendously since the late 1980's and throughout the 1990's. Every facet of mining and reclamation is now affected if not completely controlled through the use of computers and advanced software. The mine regulators have also gone through this dramatic change in the last two decades. As the regulated mining industry continues to look for more cost effective measures to meet the need for lower prices, computer technology will allow them to make savings in a formerly paper-dominated world. In order to utilize the mining industries electronic products the mine regulators must be in a position to accept electronically enhanced permits. The United States Department of Interior, Office of Surface Mining (OSM) has a multi-year initiative to promote the concept and eventually the realization of electronically enhanced permitting (EEP) and electronic permitting (EP). Many states are well on their way to accepting partial and in some cases complete electronic permits. The OSM has also provided the states with computer technology since the late 1980's through the Technical Information Processing System (TIPS). This system of environmental software packages and hands-on training has will continue to help the states meet their environmental regulation obligations in the new digital world. JF - Proceedings of the Annual National Meeting - American Society for Surface Mining and Reclamation AU - Joseph, William L A2 - Daniels, W. Lee A2 - Richardson, Steven G. Y1 - 2000 PY - 2000 DA - 2000 SP - 310 EP - 316 PB - American Society for Surface Mining and Reclamation, [location varies] VL - 17 KW - mining KW - Global Positioning System KW - cartography KW - regulations KW - reclamation KW - data processing KW - environmental analysis KW - cost KW - computer programs KW - computers KW - geographic information systems KW - digital cartography KW - information systems KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52282100?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Annual+National+Meeting+-+American+Society+for+Surface+Mining+and+Reclamation&rft.atitle=Enhanced+computer+software+applications+for+mining+and+reclamation&rft.au=Joseph%2C+William+L&rft.aulast=Joseph&rft.aufirst=William&rft.date=2000-01-01&rft.volume=17&rft.issue=&rft.spage=310&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Annual+National+Meeting+-+American+Society+for+Surface+Mining+and+Reclamation&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seventeenth annual meeting of the American Society for Surface Mining and Reclamation N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #03219 N1 - SubjectsTermNotLitGenreText - cartography; computer programs; computers; cost; data processing; digital cartography; environmental analysis; geographic information systems; Global Positioning System; information systems; mining; reclamation; regulations ER - TY - JOUR T1 - Hydraulic modeling; concepts and practice AN - 52263631; 2001-015546 JF - ASCE Manual and Report on Engineering Practice A2 - Ettema, R. A2 - Arndt, R. A2 - Roberts, P. A2 - Wahl, T. Y1 - 2000 PY - 2000 DA - 2000 SP - 379 PB - American Society of Civil Engineers, New York, NY VL - 97 KW - hydrology KW - hydraulics KW - numerical models KW - rivers and streams KW - channels KW - power plants KW - calibration KW - concepts KW - models KW - case studies KW - viscosity KW - practice KW - ice KW - homogeneity KW - sediments KW - waterways KW - testing KW - Reynolds number KW - 30:Engineering geology KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52263631?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0784404151&rft.btitle=Hydraulic+modeling%3B+concepts+and+practice&rft.title=Hydraulic+modeling%3B+concepts+and+practice&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - NY N1 - Document feature - illus. incl. 11 tables, sketch maps N1 - SuppNotes - Individual chapters are not cited separately N1 - Last updated - 2012-06-07 N1 - CODEN - #02796 N1 - SubjectsTermNotLitGenreText - calibration; case studies; channels; concepts; homogeneity; hydraulics; hydrology; ice; models; numerical models; power plants; practice; Reynolds number; rivers and streams; sediments; testing; viscosity; waterways ER - TY - JOUR T1 - Coal recoverability in the Hilight Quadrangle, Powder River basin, Wyoming; a prototype study in a western coal field AN - 52238058; 2001-033892 JF - Open-File Report - U. S. Geological Survey AU - Osmonson, Lee M AU - Rohrbacher, Timothy J AU - Molnia, Carol L AU - Sullivan, Gerald L Y1 - 2000 PY - 2000 DA - 2000 SP - 23 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - resources KW - mines KW - waste rock KW - natural gas KW - Hilight Quadrangle KW - coal mines KW - petroleum KW - coal seams KW - coal fields KW - Campbell County Wyoming KW - production value KW - production KW - recovery KW - Wyoming KW - sedimentary rocks KW - potential deposits KW - coal KW - coalbed methane KW - thickness KW - tonnage KW - USGS KW - Powder River basin KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52238058?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Open-File+Report+-+U.+S.+Geological+Survey&rft.atitle=Coal+recoverability+in+the+Hilight+Quadrangle%2C+Powder+River+basin%2C+Wyoming%3B+a+prototype+study+in+a+western+coal+field&rft.au=Osmonson%2C+Lee+M%3BRohrbacher%2C+Timothy+J%3BMolnia%2C+Carol+L%3BSullivan%2C+Gerald+L&rft.aulast=Osmonson&rft.aufirst=Lee&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ L2 - http://greenwood.cr.usgs.gov/energy/coal/OF00-103/ https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 19 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2016-09-16 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - Campbell County Wyoming; coal; coal fields; coal mines; coal seams; coalbed methane; Hilight Quadrangle; mines; natural gas; petroleum; potential deposits; Powder River basin; production; production value; recovery; resources; sedimentary rocks; thickness; tonnage; United States; USGS; waste rock; Wyoming ER - TY - JOUR T1 - Late Quaternary tectonic activity on the Death Valley and Furnace Creek faults, Death Valley, California AN - 52237812; 2001-033060 JF - U. S. Geological Survey Digital Data Series AU - Klinger, Ralph E AU - Piety, Lucille A A2 - Whitney, John W. A2 - Keefer, William R. Y1 - 2000 PY - 2000 DA - 2000 SP - 16 PB - U. S. Geological Survey, Reston, VA KW - United States KW - Quaternary KW - slip rates KW - displacements KW - Cenozoic KW - California KW - rupture KW - neotectonics KW - Furnace Creek KW - upper Quaternary KW - Death Valley KW - Death Valley Fault KW - tectonics KW - Furnace Creek Fault KW - USGS KW - faults KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52237812?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=U.+S.+Geological+Survey+Digital+Data+Series&rft.atitle=Late+Quaternary+tectonic+activity+on+the+Death+Valley+and+Furnace+Creek+faults%2C+Death+Valley%2C+California&rft.au=Klinger%2C+Ralph+E%3BPiety%2C+Lucille+A&rft.aulast=Klinger&rft.aufirst=Ralph&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=U.+S.+Geological+Survey+Digital+Data+Series&rft.issn=&rft_id=info:doi/ L2 - http://greenwood.cr.usgs.gov/pub/dds/dds-058/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 39 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Document feature - illus. incl. sect., 2 tables, sketch map N1 - SuppNotes - Prepared in cooperation with the U.S. Department of Energy, Nevada Operations Office N1 - Last updated - 2012-06-07 N1 - CODEN - #03566 N1 - SubjectsTermNotLitGenreText - California; Cenozoic; Death Valley; Death Valley Fault; displacements; faults; Furnace Creek; Furnace Creek Fault; neotectonics; Quaternary; rupture; slip rates; tectonics; United States; upper Quaternary; USGS ER - TY - JOUR T1 - Great Basin and Sierra Nevada AN - 52225423; 2001-044429 JF - GSA Field Guide AU - Essington, Mel A2 - Lageson, David R. A2 - Peters, Stephen G. A2 - Lahren, Mary M. Y1 - 2000 PY - 2000 DA - 2000 SP - 398 PB - Geological Society of America, Boulder, CO VL - 2 KW - United States KW - Keane Wonder Springs KW - guidebook KW - Keane Wonder Mine KW - veins KW - production KW - quartz veins KW - history KW - California KW - Death Valley KW - metal ores KW - springs KW - gold ores KW - 27A:Economic geology, geology of ore deposits KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52225423?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=GSA+Field+Guide&rft.atitle=Great+Basin+and+Sierra+Nevada&rft.au=Essington%2C+Mel&rft.aulast=Essington&rft.aufirst=Mel&rft.date=2000-01-01&rft.volume=2&rft.issue=&rft.spage=398&rft.isbn=0813700024&rft.btitle=&rft.title=GSA+Field+Guide&rft.issn=&rft_id=info:doi/ L2 - http://fieldguides.gsapubs.org/content/by/year LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - #05176 N1 - SubjectsTermNotLitGenreText - California; Death Valley; gold ores; guidebook; history; Keane Wonder Mine; Keane Wonder Springs; metal ores; production; quartz veins; springs; United States; veins ER - TY - JOUR T1 - A guide to the geology of Organ Pipe Cactus National Monument and the Pinacate Biosphere Reserve AN - 52224248; 2001-044171 JF - Arizona Geological Survey Down-to-Earth Series AU - Bezy, John V AU - Gutmann, James T AU - Haxel, Gordon B Y1 - 2000 PY - 2000 DA - 2000 SP - 63 PB - Arizona Geological Survey, Tucson, AZ VL - 9 KW - United States KW - eolian features KW - lithostratigraphy KW - volcanic rocks KW - igneous rocks KW - playas KW - areal geology KW - Sonoran Desert KW - deserts KW - volcanic features KW - metamorphic rocks KW - tectonics KW - Pima County Arizona KW - faults KW - plutons KW - North America KW - tectonic elements KW - petrology KW - lava flows KW - Pinacate Biosphere Reserve KW - desert pavement KW - intrusions KW - dikes KW - Organ Pipe Cactus National Monument KW - Mexico KW - Arizona KW - geomorphology KW - 13:Areal geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52224248?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Bezy%2C+John+V%3BGutmann%2C+James+T%3BHaxel%2C+Gordon+B&rft.aulast=Bezy&rft.aufirst=John&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=189200111X&rft.btitle=A+guide+to+the+geology+of+Organ+Pipe+Cactus+National+Monument+and+the+Pinacate+Biosphere+Reserve&rft.title=A+guide+to+the+geology+of+Organ+Pipe+Cactus+National+Monument+and+the+Pinacate+Biosphere+Reserve&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - AZ N1 - Document feature - illus. incl. sects., geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - #03354 N1 - SubjectsTermNotLitGenreText - areal geology; Arizona; desert pavement; deserts; dikes; eolian features; faults; geomorphology; igneous rocks; intrusions; lava flows; lithostratigraphy; metamorphic rocks; Mexico; North America; Organ Pipe Cactus National Monument; petrology; Pima County Arizona; Pinacate Biosphere Reserve; playas; plutons; Sonoran Desert; tectonic elements; tectonics; United States; volcanic features; volcanic rocks ER - TY - JOUR T1 - Mapping Typha domingensis in the Cienega de Santa Clara using satellite images, Global Positioning System, and spectrometry AN - 52189708; 2001-066480 JF - Open-File Report - U. S. Geological Survey AU - Sanchez, Richard D AU - Burnett, Earl AU - Croxen, Fred Y1 - 2000 PY - 2000 DA - 2000 SP - 12 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - Sonora Mexico KW - water quality KW - imagery KW - Global Positioning System KW - endangered species KW - pollutants KW - effluents KW - surface water KW - pollution KW - mapping KW - satellite methods KW - environmental effects KW - Colorado River KW - Typha KW - Mexico KW - wetlands KW - classification KW - Cienega de Santa Clara KW - USGS KW - Typha domingensis KW - spectroscopy KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52189708?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Sanchez%2C+Richard+D%3BBurnett%2C+Earl%3BCroxen%2C+Fred&rft.aulast=Sanchez&rft.aufirst=Richard&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Mapping+Typha+domingensis+in+the+Cienega+de+Santa+Clara+using+satellite+images%2C+Global+Positioning+System%2C+and+spectrometry&rft.title=Mapping+Typha+domingensis+in+the+Cienega+de+Santa+Clara+using+satellite+images%2C+Global+Positioning+System%2C+and+spectrometry&rft.issn=01961497&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 15 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendices N1 - Last updated - 2014-03-14 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - Cienega de Santa Clara; classification; Colorado River; effluents; endangered species; environmental effects; Global Positioning System; imagery; mapping; Mexico; pollutants; pollution; remote sensing; satellite methods; Sonora Mexico; spectroscopy; surface water; Typha; Typha domingensis; USGS; water quality; wetlands ER - TY - JOUR T1 - Most recent eruptions of Hualalai Volcano, Hawai'i; geological evidence from the historical record AN - 52185986; 2001-070120 AB - Hualalai is the westernmost of the three active volcanoes on the island of Hawai'i. Eruptions have occurred every few hundred years from its summit and rift zones, making it the fourth highest lava flow hazard zone on the island of Hawai'i. Although infrequent, Hualalai eruptions produce lava flows that travel down significantly steeper slopes than those of the island's other active volcanoes--Kilauea or Mauna Loa. Continued development on Hualalai's slopes suggests that refinement of its hazard assessment, based on frequency and style of eruption, may now be appropriate. There have been no Hualalai eruptions during modern times on which to assess the style of its eruptions. The most recent eruptions occurred early after contact with explorers from the western world, and scientific descriptions of the events were not made. These eruptions produced three lava flows and two lava flow fields from at least six different vents including en echelon fissure system and reoccupied cones. Information on the style of these eruptions would be invaluable for hazard assessment. On the basis, in part, of their research into historical accounts, previous investigators concluded that one of these most recent flows advanced from its vent more than 15 km to the ocean in less than 1 hr and that similar future flows may pose a hazard to life and property. Our reading of those same accounts finds no lava flow speed or duration information. A more comprehensive search of ships' logs, missionary diaries, travel diaries, maps, early geologic papers, and Hawaiian legends did yield a few more details about the dynamics of these flows and some important questions about their chronology. Of all the events, it is most certain that the Hu'ehu'e flow field occurred in 1801, but dates for the other eruptions are less certain. Most, if not all, of the descriptions of eruptive behavior may also be of the Hu'ehu'e flow field and not the Kaupulehu flow field as others had assumed. JF - Special Paper - Geological Society of America AU - Kauahikaua, Jim P AU - Camara, Bobby A2 - McCoy, Floyd W. A2 - Heiken, Grant Y1 - 2000 PY - 2000 DA - 2000 SP - 25 EP - 32 PB - Geological Society of America (GSA), Boulder, CO VL - 345 SN - 0072-1077, 0072-1077 KW - United States KW - Hawaii Island KW - lava flows KW - geologic hazards KW - Hawaii County Hawaii KW - Hawaii KW - East Pacific Ocean Islands KW - history KW - volcanic risk KW - Hualalai KW - eruptions KW - Oceania KW - volcanoes KW - risk assessment KW - Polynesia KW - vents KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52185986?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Geological+Society+of+America&rft.atitle=Most+recent+eruptions+of+Hualalai+Volcano%2C+Hawai%27i%3B+geological+evidence+from+the+historical+record&rft.au=Kauahikaua%2C+Jim+P%3BCamara%2C+Bobby&rft.aulast=Kauahikaua&rft.aufirst=Jim&rft.date=2000-01-01&rft.volume=345&rft.issue=&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Geological+Society+of+America&rft.issn=00721077&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America 1994 annual meeting , symposium on Volcanic hazards and disasters in human antiquity N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 46 N1 - PubXState - CO N1 - Document feature - 1 table, sketch map N1 - SuppNotes - Includes appendix N1 - Last updated - 2012-06-07 N1 - CODEN - GSAPAZ N1 - SubjectsTermNotLitGenreText - East Pacific Ocean Islands; eruptions; geologic hazards; Hawaii; Hawaii County Hawaii; Hawaii Island; history; Hualalai; lava flows; Oceania; Polynesia; risk assessment; United States; vents; volcanic risk; volcanoes ER - TY - JOUR T1 - Examining hydrologic impacts of underground coal mining in the Northern Appalachian coal region using geologic models and geographic information system (GIS) AN - 52137245; 2002-018847 AB - The northern Appalachian Basin (USA) contains Upper Pennsylvanian coal and related strata that is high in sulfur in some areas and contributes to acidic mine drainage. Because underground mines interconnect to varying degrees, permeability is greatly increased in the subsurface. Eventually, mines flood with water creating mine pools that may have artesian pressures that can facilitate flow to the surface or into other active and abandoned mines. Federal legislation encourages flooding of old underground mines to reduce the potential of pyrite oxidation and lessen the chance of acidic water generation. The artesian pressures can generate continuous flows of thousands of gallons of water or even sudden catastrophic discharges (blowouts) that involve millions of gallons. For example, the Pittsburgh coal bed (Monongahela Group) has a 10,900 hectare mine pool that could potentially discharge millions of gallons of metal-rich (e.g., total iron greater than 200 mg/L) water, degrading the Monongahela River in the vicinity of Fairmont, West Virginia. Assessment of the regional hydrologic impacts from mine pool discharge points requires an understanding of the coal's geologic and stratigraphic framework and a detailed knowledge of past mining. The U. S. Geological Survey (USGS) digitally assessed the Pittsburgh coal bed in the northern Appalachian region through the National Coal Resource Assessment program. These databases and GIS coverages now can be used to visualize, in three dimensions, the coal thickness, mined area distribution, and water discharge locations using various software programs, in an effort to predict and perhaps prevent future hydrologic impacts. JF - Abstracts with Programs - Geological Society of America AU - Tewalt, Susan J AU - Robbins, Eleanora I AU - Shapiro, Yogesh AU - Ruppert, Leslie F AU - Kohli, Kewal K AU - Hawkins, Jay W AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 38 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - mining KW - Pittsburgh Coal KW - underground mining KW - Pennsylvanian KW - Marion County West Virginia KW - Appalachians KW - ground water KW - Monongahela River KW - sedimentary rocks KW - geographic information systems KW - Appalachian Basin KW - mining geology KW - coal KW - Fairmont West Virginia KW - discharge KW - abandoned mines KW - West Virginia KW - hydrology KW - North America KW - mines KW - acid mine drainage KW - Paleozoic KW - oxidation KW - Carboniferous KW - pollution KW - effects KW - models KW - Monongahela Group KW - sulfur KW - information systems KW - Northern Appalachians KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52137245?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Examining+hydrologic+impacts+of+underground+coal+mining+in+the+Northern+Appalachian+coal+region+using+geologic+models+and+geographic+information+system+%28GIS%29&rft.au=Tewalt%2C+Susan+J%3BRobbins%2C+Eleanora+I%3BShapiro%2C+Yogesh%3BRuppert%2C+Leslie+F%3BKohli%2C+Kewal+K%3BHawkins%2C+Jay+W%3BAnonymous&rft.aulast=Tewalt&rft.aufirst=Susan&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=38&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - abandoned mines; acid mine drainage; Appalachian Basin; Appalachians; Carboniferous; coal; discharge; effects; Fairmont West Virginia; geographic information systems; ground water; hydrology; information systems; Marion County West Virginia; mines; mining; mining geology; models; Monongahela Group; Monongahela River; North America; Northern Appalachians; oxidation; Paleozoic; Pennsylvanian; permeability; Pittsburgh Coal; pollution; sedimentary rocks; sulfur; underground mining; United States; West Virginia ER - TY - JOUR T1 - The National Park Service digital geologic map model; transformation from paper to digital, featuring legends, cross sections, map notes and keyword searchability AN - 52136723; 2002-019780 JF - Open-File Report - U. S. Geological Survey AU - Fryer, Steve AU - Gregson, Joe AU - Connors, Tim AU - Poole, Anne R AU - Heise, Bruce Y1 - 2000 PY - 2000 DA - 2000 SP - 69 EP - 81 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - U. S. National Park Service KW - spatial data KW - cartography KW - government agencies KW - data processing KW - national parks KW - mapping KW - public lands KW - digital cartography KW - data bases KW - USGS KW - digitization KW - 14:Geologic maps UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52136723?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Open-File+Report+-+U.+S.+Geological+Survey&rft.atitle=The+National+Park+Service+digital+geologic+map+model%3B+transformation+from+paper+to+digital%2C+featuring+legends%2C+cross+sections%2C+map+notes+and+keyword+searchability&rft.au=Fryer%2C+Steve%3BGregson%2C+Joe%3BConnors%2C+Tim%3BPoole%2C+Anne+R%3BHeise%2C+Bruce&rft.aulast=Fryer&rft.aufirst=Steve&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=69&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ L2 - http://pubs.usgs.gov/openfile/of00-325/ https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Conference title - Digital mapping techniques '00; workshop N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 4 N1 - Availability - U. S. Geol. Surv., United States N1 - PubXState - VA N1 - Document feature - illus. N1 - Last updated - 2016-10-25 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - cartography; data bases; data processing; digital cartography; digitization; government agencies; mapping; national parks; public lands; spatial data; U. S. National Park Service; United States; USGS ER - TY - JOUR T1 - Groundwater level changes associated with coal mining and coalbed methane development in the eastern Powder River basin of Wyoming AN - 52136470; 2002-018848 AB - Production of coal and coalbed methane resources in the Eastern Powder River Basin of Wyoming has resulted in extensive declines in groundwater levels in the Wyodak-Anderson Coal Bed. Potential impacts to domestic, municipal and agricultural wells is a major concern in the region. Data from paired monitoring well installations indicates declines as high as 90 percent of initial available aquifer pressure in coal seams targeted from coal and coalbed methane production, while declines in overlying Wasatch sands are limited to less than 10 percent of initial available pressure. JF - Abstracts with Programs - Geological Society of America AU - Meyer, Joseph F AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 38 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - Wyodak-Anderson coal field KW - natural gas KW - aliphatic hydrocarbons KW - observation wells KW - petroleum KW - production KW - ground water KW - Cenozoic KW - sedimentary rocks KW - levels KW - mining geology KW - coal KW - Powder River basin KW - methane KW - pressure KW - agriculture KW - Wasatch Formation KW - Paleogene KW - alkanes KW - Wyoming KW - Tertiary KW - organic compounds KW - hydrocarbons KW - coalbed methane KW - water wells KW - 29A:Economic geology, geology of energy sources KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52136470?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Groundwater+level+changes+associated+with+coal+mining+and+coalbed+methane+development+in+the+eastern+Powder+River+basin+of+Wyoming&rft.au=Meyer%2C+Joseph+F%3BAnonymous&rft.aulast=Meyer&rft.aufirst=Joseph&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=38&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - agriculture; aliphatic hydrocarbons; alkanes; Cenozoic; coal; coalbed methane; ground water; hydrocarbons; levels; methane; mining geology; natural gas; observation wells; organic compounds; Paleogene; petroleum; Powder River basin; pressure; production; sedimentary rocks; Tertiary; United States; Wasatch Formation; water wells; Wyodak-Anderson coal field; Wyoming ER - TY - JOUR T1 - Overview of the national park system in Utah AN - 52123006; 2002-031775 JF - Utah Geological Association Publication AU - Connors, Tim A2 - Sprinkel, Douglas A. A2 - Chidsey, Thomas C., Jr. A2 - Anderson, Paul B. Y1 - 2000 PY - 2000 DA - 2000 SP - 1 EP - 6 PB - Utah Geological Association, Salt Lake City, UT VL - 28 SN - 0375-8176, 0375-8176 KW - United States KW - Colorado Plateau KW - national parks KW - Utah KW - public lands KW - areal geology KW - 13:Areal geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52123006?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Utah+Geological+Association+Publication&rft.atitle=Overview+of+the+national+park+system+in+Utah&rft.au=Connors%2C+Tim&rft.aulast=Connors&rft.aufirst=Tim&rft.date=2000-01-01&rft.volume=28&rft.issue=&rft.spage=1&rft.isbn=0970257104&rft.btitle=&rft.title=Utah+Geological+Association+Publication&rft.issn=03758176&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - UT N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - UGAPB4 N1 - SubjectsTermNotLitGenreText - areal geology; Colorado Plateau; national parks; public lands; United States; Utah ER - TY - JOUR T1 - National park stratigraphy on the World Wide Web; a progress report on a cooperative effort of the National Park Service and Eastern Illinois University undergraduates AN - 52122249; 2002-028876 AB - This is a progress report on a new project involving the National Park Service and Eastern Illinois University undergraduate geology majors. As part of their Geologic Resources Inventory, the NPS has begun efforts to place large amounts of geologic information about their parks, monuments and other sites on the World Wide Web. Students in the EIU stratigraphy class are assisting with this project by preparing stratigraphic information pertinent to selected NPS sites in Colorado and Utah. The NPS provided text of the stratigraphic units in selected parks that has been published on existing geologic maps. Students prepared professional stratigraphic columns from this data using the table functions in Microsoft Word 97, the standard adopted by the NPS. The columns were reviewed by the instructor prior to submission to the NPS who also reviewed each column. After the review process the NPS placed the columns on their web site as MS Word 97 and PDF files. The index page can be found at http://www2.nature.nps. gov/grd/geology/gri/products/strat/. Students were greatly challenged with parks that have lengthy and complicated stratigraphic sequences (Black Canyon of the Gunnison NP and Rocky Mountain NP). The project was deemed successful enough to continue this joint venture. JF - Abstracts with Programs - Geological Society of America AU - Connors, Timothy B AU - Jorstad, Robert B AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 74 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - stratigraphy KW - Colorado Plateau KW - U. S. National Park Service KW - government agencies KW - national parks KW - education KW - public lands KW - World Wide Web KW - Eastern Illinois University KW - college-level education KW - academic institutions KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52122249?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=National+park+stratigraphy+on+the+World+Wide+Web%3B+a+progress+report+on+a+cooperative+effort+of+the+National+Park+Service+and+Eastern+Illinois+University+undergraduates&rft.au=Connors%2C+Timothy+B%3BJorstad%2C+Robert+B%3BAnonymous&rft.aulast=Connors&rft.aufirst=Timothy&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=74&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - academic institutions; college-level education; Colorado Plateau; Eastern Illinois University; education; government agencies; national parks; public lands; stratigraphy; U. S. National Park Service; United States; World Wide Web ER - TY - JOUR T1 - A survey of the paleontological resources from the national parks and monuments in Utah AN - 52122197; 2002-031803 AB - The National Park Service (NPS) administers thirteen park units within the state of Utah. Most of these parks and monuments have been established and are recognized for their significant geologic features. Fossiliferous rocks of Paleozoic, Mesozoic, and Cenozoic age have been identified in all of the National Park System units in Utah. In 1998, the first comprehensive inventory of paleontological resources in the national parks and monuments of Utah was initiated. A wide diversity of fossilized plants, invertebrates, vertebrates, and trace fossils has been documented. Paleontological resources identified from within the parks and monuments have been assessed relative to their scientific significance, potential threats, and management as non-renewable resources. Considerable focus has been directed towards the in situ management of the abundant fossil vertebrate tracks identified throughout the Mesozoic formations within at least seven National Park Service areas in Utah. The baseline paleontological resource data obtained during this survey will assist park staff with improved management of their paleontological resources and protection of fossils within their park. JF - Utah Geological Association Publication AU - Santucci, Vincent L A2 - Sprinkel, Douglas A. A2 - Chidsey, Thomas C., Jr. A2 - Anderson, Paul B. Y1 - 2000 PY - 2000 DA - 2000 SP - 534 EP - 556 PB - Utah Geological Association, Salt Lake City, UT VL - 28 SN - 0375-8176, 0375-8176 KW - United States KW - fossil localities KW - Plantae KW - Chordata KW - ichnofossils KW - national parks KW - public lands KW - paleontology KW - history KW - national monuments KW - Invertebrata KW - Utah KW - Vertebrata KW - preservation KW - 08:General paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52122197?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Utah+Geological+Association+Publication&rft.atitle=A+survey+of+the+paleontological+resources+from+the+national+parks+and+monuments+in+Utah&rft.au=Santucci%2C+Vincent+L&rft.aulast=Santucci&rft.aufirst=Vincent&rft.date=2000-01-01&rft.volume=28&rft.issue=&rft.spage=534&rft.isbn=0970257104&rft.btitle=&rft.title=Utah+Geological+Association+Publication&rft.issn=03758176&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 183 N1 - PubXState - UT N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - UGAPB4 N1 - SubjectsTermNotLitGenreText - Chordata; fossil localities; history; ichnofossils; Invertebrata; national monuments; national parks; paleontology; Plantae; preservation; public lands; United States; Utah; Vertebrata ER - TY - JOUR T1 - Geology and paleontology of Dinosaur National Monument, Utah-Colorado AN - 52117122; 2002-031783 AB - Dinosaur National Monument preserves a true treasure trove of unique geological and paleontological resources. Originally a modest preserve set aside to protect the remaining fossils at Dinosaur Quarry after years of excavation by the Carnegie Museum of Natural History and others, the monument was later expanded to include the magnificent canyon country that the Green and Yampa Rivers have carved into the faults and folds of the southeastern Uinta Arch. The Uinta Arch and many of Dinosaur's faults and folds represent classic and enigmatic east- and northeast-trending structures that formed during the Laramide orogeny about 70 to 40 million years ago. Indeed, geologic deformation and subsequent erosion in the Dinosaur area have exposed a great thickness of sedimentary rocks that represent a complex geologic history and one of the most complete stratigraphic records found anywhere in the National Park System. From towering canyon walls and spires of Paleozoic sandstone to Mesozoic hogbacks and strike valleys, the preserved wealth of Dinosaur's sedimentary strata are well displayed. This unique combination of stratigraphy, structure, and erosion make Dinosaur a world-class site for the study of paleontology and paleoecology. In addition to the historical discoveries at Dinosaur Quarry, recent research and discoveries in the Morrison and Cedar Mountain formations are shedding new light on the dinosaurs and the ecological systems in which they lived. JF - Utah Geological Association Publication AU - Gregson, Jose D AU - Chure, Dan J A2 - Sprinkel, Douglas A. A2 - Chidsey, Thomas C., Jr. A2 - Anderson, Paul B. Y1 - 2000 PY - 2000 DA - 2000 SP - 155 EP - 188 PB - Utah Geological Association, Salt Lake City, UT VL - 28 SN - 0375-8176, 0375-8176 KW - United States KW - stratigraphy KW - fossil localities KW - Chordata KW - Dinosaur National Monument KW - public lands KW - areal geology KW - Uintah County Utah KW - paleoecology KW - orogeny KW - Reptilia KW - lithofacies KW - national monuments KW - stratigraphic units KW - dinosaurs KW - Utah KW - tectonics KW - Vertebrata KW - Colorado KW - Moffat County Colorado KW - Tetrapoda KW - faults KW - 13:Areal geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52117122?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Utah+Geological+Association+Publication&rft.atitle=Geology+and+paleontology+of+Dinosaur+National+Monument%2C+Utah-Colorado&rft.au=Gregson%2C+Jose+D%3BChure%2C+Dan+J&rft.aulast=Gregson&rft.aufirst=Jose&rft.date=2000-01-01&rft.volume=28&rft.issue=&rft.spage=155&rft.isbn=0970257104&rft.btitle=&rft.title=Utah+Geological+Association+Publication&rft.issn=03758176&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 102 N1 - PubXState - UT N1 - Document feature - illus. incl. strat. col., sects., 1 table, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - UGAPB4 N1 - SubjectsTermNotLitGenreText - areal geology; Chordata; Colorado; Dinosaur National Monument; dinosaurs; faults; fossil localities; lithofacies; Moffat County Colorado; national monuments; orogeny; paleoecology; public lands; Reptilia; stratigraphic units; stratigraphy; tectonics; Tetrapoda; Uintah County Utah; United States; Utah; Vertebrata ER - TY - JOUR T1 - Cruise report R/V Surf Surveyor cruise S1-00-CL; mapping the bathymetry of Crater Lake, Oregon; July 22 to August 2, 2000 AN - 52104803; 2002-040625 JF - Open-File Report - U. S. Geological Survey AU - Gardner, James V AU - Mayer, Larry A AU - Buktenica, Mark W Y1 - 2000 PY - 2000 DA - 2000 SP - 32 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - high-resolution methods KW - surface water KW - Crater Lake KW - mapping KW - Klamath County Oregon KW - Oregon KW - sounding KW - sediments KW - lacustrine environment KW - bathymetry KW - USGS KW - lake sediments KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52104803?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Open-File+Report+-+U.+S.+Geological+Survey&rft.atitle=Cruise+report+R%2FV+Surf+Surveyor+cruise+S1-00-CL%3B+mapping+the+bathymetry+of+Crater+Lake%2C+Oregon%3B+July+22+to+August+2%2C+2000&rft.au=Gardner%2C+James+V%3BMayer%2C+Larry+A%3BBuktenica%2C+Mark+W&rft.aulast=Gardner&rft.aufirst=James&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ L2 - http://geopubs.wr.usgs.gov/open-file/of00-405/ https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 10 N1 - PubXState - VA N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - SuppNotes - Accessed on May 31, 2002 N1 - Last updated - 2016-10-25 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - bathymetry; Crater Lake; high-resolution methods; Klamath County Oregon; lacustrine environment; lake sediments; mapping; Oregon; sediments; sounding; surface water; United States; USGS ER - TY - JOUR T1 - Partners in paleontology AN - 52063104; 2002-070929 JF - Bulletin - New Mexico Museum of Natural History and Science AU - O'Neill, F M A2 - Lucas, Spencer G. A2 - Heckert, Andrew B. Y1 - 2000 PY - 2000 DA - 2000 SP - 7 EP - 8 PB - New Mexico Museum of Natural History and Science, Albuquerque, NM VL - 17 SN - 1524-4156, 1524-4156 KW - United States KW - Chordata KW - Jurassic KW - Cretaceous KW - U. S. Bureau of Land Management KW - government agencies KW - New Mexico KW - public lands KW - Mesozoic KW - Reptilia KW - dinosaurs KW - San Juan Basin KW - Vertebrata KW - Tetrapoda KW - 11:Vertebrate paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52063104?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+-+New+Mexico+Museum+of+Natural+History+and+Science&rft.atitle=Partners+in+paleontology&rft.au=O%27Neill%2C+F+M&rft.aulast=O%27Neill&rft.aufirst=F&rft.date=2000-01-01&rft.volume=17&rft.issue=&rft.spage=7&rft.isbn=&rft.btitle=&rft.title=Bulletin+-+New+Mexico+Museum+of+Natural+History+and+Science&rft.issn=15244156&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 7 N1 - Availability - New Mexico Museum of Natural History and Science, Albuquerque, NM, United States N1 - PubXState - NM N1 - Last updated - 2012-06-07 N1 - CODEN - #03874 N1 - SubjectsTermNotLitGenreText - Chordata; Cretaceous; dinosaurs; government agencies; Jurassic; Mesozoic; New Mexico; public lands; Reptilia; San Juan Basin; Tetrapoda; U. S. Bureau of Land Management; United States; Vertebrata ER - TY - JOUR T1 - Local variability but landscape stability in coral reef communities following repeated hurricane impacts AN - 52037015; 2003-006750 JF - Marine Ecology. Progress Series (Halstenbek) AU - Bythell, John C AU - Hillis-Starr, Zandy M AU - Rogers, Caroline S Y1 - 2000 PY - 2000 DA - 2000 SP - 93 EP - 100 PB - Inter-Research, Halstenbek VL - 204 SN - 0171-8630, 0171-8630 KW - case studies KW - biodiversity KW - monitoring KW - communities KW - reefs KW - Hurricane Hugo KW - hurricanes KW - colonization KW - oceanography KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52037015?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Ecology.+Progress+Series+%28Halstenbek%29&rft.atitle=Local+variability+but+landscape+stability+in+coral+reef+communities+following+repeated+hurricane+impacts&rft.au=Bythell%2C+John+C%3BHillis-Starr%2C+Zandy+M%3BRogers%2C+Caroline+S&rft.aulast=Bythell&rft.aufirst=John&rft.date=2000-01-01&rft.volume=204&rft.issue=&rft.spage=93&rft.isbn=&rft.btitle=&rft.title=Marine+Ecology.+Progress+Series+%28Halstenbek%29&rft.issn=01718630&rft_id=info:doi/ L2 - http://www.int-res.com/journals/meps/meps-home/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 54 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - biodiversity; case studies; colonization; communities; Hurricane Hugo; hurricanes; monitoring; oceanography; reefs ER - TY - JOUR T1 - Colluvial deposits in canyons of the Appalachian Plateaus AN - 52023212; 2003-014510 AB - Colluvial deposits of varying thickness mantle most canyon slopes in the Appalachian Plateaus. Thick quartz sandstone members commonly support nearly continuous outcrops, especially along canyon rims, but other lithologies are almost completely covered by colluvial diamictons, largely derived from the sandstones. The Nutall Member of the New River Formation may be the most resistant sandstone unit in the region, yielding thousands of blocks that exceed 10 m in diameter within the lower New River Gorge of West Virginia. Other "Pottsville" members yield comparable colluvial blocks throughout the region. Less resistant rocks may contribute significant fractions of the diamicton matrix. Typically, the surface material is much boulderier and composed of different lithologies than colluvium at depth. Regional studies show that most colluvium is relict from cold Pleistocene climates. Virtually every historic landslide can be attributed to human disturbance, implying that relative stability may have dominated the Holocene history of the blocky-bouldery slopes. Canyon morphology is a major control over colluvium thickness. The thickest deposits commonly exceed 20 m and occur on footslopes at the outside of valley bends. The ability of canyon rivers to transport coarse material has been overwhelmed by the rate that colluvial processes have delivered material down converging slope orthogonals. Very little bedrock crops out at river level near these thick colluvial deposits. Adjacent river channels appear to have been "pushed" toward the inside of valley bends by colluviation. Deep borings are rare in these settings, but the morphology suggests that valley bottoms aggraded while colluviation deflected the channels. Later (Holocene?) stream flow has modified the lower ends of the thick colluvial deposits into shelf-like boulder bars. Over 90 percent of the rapids in these popular whitewater streams are directly associated with colluvial deposits. JF - Abstracts with Programs - Geological Society of America AU - Kite, J Steven AU - Moore, Dawn A AU - Remo, Jonathan W F AU - Morris, Annie J AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 181 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - stream transport KW - Pennsylvanian KW - sandstone KW - Appalachians KW - Appalachian Plateau KW - paleoclimatology KW - Holocene KW - Cenozoic KW - New River Formation KW - sedimentary rocks KW - mass movements KW - sediments KW - thickness KW - outcrops KW - West Virginia KW - processes KW - North America KW - Nutall Member KW - Quaternary KW - Lower Pennsylvanian KW - sediment transport KW - colluvium KW - clastic sediments KW - Paleozoic KW - paleohydrology KW - Carboniferous KW - aggradation KW - canyons KW - New River Gorge KW - landslides KW - Pleistocene KW - diamicton KW - Pottsville Group KW - clastic rocks KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52023212?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Colluvial+deposits+in+canyons+of+the+Appalachian+Plateaus&rft.au=Kite%2C+J+Steven%3BMoore%2C+Dawn+A%3BRemo%2C+Jonathan+W+F%3BMorris%2C+Annie+J%3BAnonymous&rft.aulast=Kite&rft.aufirst=J&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=181&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2003-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aggradation; Appalachian Plateau; Appalachians; canyons; Carboniferous; Cenozoic; clastic rocks; clastic sediments; colluvium; diamicton; Holocene; landslides; Lower Pennsylvanian; mass movements; New River Formation; New River Gorge; North America; Nutall Member; outcrops; paleoclimatology; paleohydrology; Paleozoic; Pennsylvanian; Pleistocene; Pottsville Group; processes; Quaternary; sandstone; sediment transport; sedimentary rocks; sediments; stream transport; thickness; United States; West Virginia ER - TY - JOUR T1 - Monitoring sand deposition and erosion on a razorback sucker spawning bar on the Green River near Jensen, Utah, using an array of load-cell scour sensors AN - 51972876; 2003-045352 JF - Proceedings of the Arizona Hydrological Society Annual Symposium AU - Carpenter, Michael C AU - Cluer, Brian L AU - Smith, George R AU - Wick, Edmund J AU - Lockett, Joseph L, Jr AU - Brockner, Susan J AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 13 EP - 14 PB - Basin & Range Hydrogeologists, Inc., Phoenix, AZ VL - 13 KW - United States KW - Jensen Utah KW - technology KW - stream transport KW - erosion KW - ecosystems KW - Uintah County Utah KW - Pisces KW - ice KW - dams KW - sediments KW - ecology KW - scour KW - ice dams KW - hydrology KW - sand KW - Chordata KW - monitoring KW - sediment transport KW - clastic sediments KW - bars KW - water erosion KW - natural dams KW - Green River KW - deposition KW - runoff KW - Utah KW - Vertebrata KW - instruments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51972876?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Arizona+Hydrological+Society+Annual+Symposium&rft.atitle=Monitoring+sand+deposition+and+erosion+on+a+razorback+sucker+spawning+bar+on+the+Green+River+near+Jensen%2C+Utah%2C+using+an+array+of+load-cell+scour+sensors&rft.au=Carpenter%2C+Michael+C%3BCluer%2C+Brian+L%3BSmith%2C+George+R%3BWick%2C+Edmund+J%3BLockett%2C+Joseph+L%2C+Jr%3BBrockner%2C+Susan+J%3BAnonymous&rft.aulast=Carpenter&rft.aufirst=Michael&rft.date=2000-01-01&rft.volume=13&rft.issue=&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Arizona+Hydrological+Society+Annual+Symposium&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Arizona Hydrological Society 2000 annual symposium; Environmental technologies for the 21st century N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - AZ N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #03215 N1 - SubjectsTermNotLitGenreText - bars; Chordata; clastic sediments; dams; deposition; ecology; ecosystems; erosion; Green River; hydrology; ice; ice dams; instruments; Jensen Utah; monitoring; natural dams; Pisces; runoff; sand; scour; sediment transport; sediments; stream transport; technology; Uintah County Utah; United States; Utah; Vertebrata; water erosion ER - TY - JOUR T1 - Long-term aquatic biota data-base analysis AN - 51969136; 2003-045731 JF - Open-File Report - U. S. Geological Survey AU - Trexler, Joel C AU - Loftus, William F AU - Perry, Sue AU - Eggleston, Jane R AU - Embry, Teresa L AU - Mooney, Robert H AU - Wedderburn, Leslie AU - Goodwin, Carl R AU - Henkel, Heather S AU - Pegram, Kathleen M H AU - Enright, Tracy J Y1 - 2000 PY - 2000 DA - 2000 SP - 141 EP - 142 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - Plantae KW - Chordata KW - food chains KW - Everglades KW - trophic analysis KW - data processing KW - information management KW - Florida KW - biota KW - data management KW - Pisces KW - data bases KW - Invertebrata KW - ecology KW - Vertebrata KW - USGS KW - aquatic environment KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51969136?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Open-File+Report+-+U.+S.+Geological+Survey&rft.atitle=Long-term+aquatic+biota+data-base+analysis&rft.au=Trexler%2C+Joel+C%3BLoftus%2C+William+F%3BPerry%2C+Sue%3BEggleston%2C+Jane+R%3BEmbry%2C+Teresa+L%3BMooney%2C+Robert+H%3BWedderburn%2C+Leslie%3BGoodwin%2C+Carl+R%3BHenkel%2C+Heather+S%3BPegram%2C+Kathleen+M+H%3BEnright%2C+Tracy+J&rft.aulast=Trexler&rft.aufirst=Joel&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=141&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ L2 - http://sofia.usgs.gov/publications/ofr/00-449/ https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Conference title - Greater Everglades ecosystem restoration (GEER) conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - VA N1 - Document feature - sketch map N1 - Last updated - 2016-10-25 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - aquatic environment; biota; Chordata; data bases; data management; data processing; ecology; Everglades; Florida; food chains; information management; Invertebrata; Pisces; Plantae; trophic analysis; United States; USGS; Vertebrata ER - TY - JOUR T1 - The role of aquatic refuges in the Rockland wetland complex of South Florida in relation to system restoration AN - 51967200; 2003-045720 JF - Open-File Report - U. S. Geological Survey AU - Loftus, William F AU - Perry, Sue AU - Trexler, Joel C AU - Eggleston, Jane R AU - Embry, Teresa L AU - Mooney, Robert H AU - Wedderburn, Leslie AU - Goodwin, Carl R AU - Henkel, Heather S AU - Pegram, Kathleen M H AU - Enright, Tracy J Y1 - 2000 PY - 2000 DA - 2000 SP - 116 EP - 118 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - Chordata KW - Everglades KW - Crustacea KW - Rockland Wetlands KW - Florida KW - biota KW - Pisces KW - habitat KW - Arthropoda KW - wetlands KW - Mandibulata KW - Invertebrata KW - ecology KW - Vertebrata KW - USGS KW - aquatic environment KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51967200?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Open-File+Report+-+U.+S.+Geological+Survey&rft.atitle=The+role+of+aquatic+refuges+in+the+Rockland+wetland+complex+of+South+Florida+in+relation+to+system+restoration&rft.au=Loftus%2C+William+F%3BPerry%2C+Sue%3BTrexler%2C+Joel+C%3BEggleston%2C+Jane+R%3BEmbry%2C+Teresa+L%3BMooney%2C+Robert+H%3BWedderburn%2C+Leslie%3BGoodwin%2C+Carl+R%3BHenkel%2C+Heather+S%3BPegram%2C+Kathleen+M+H%3BEnright%2C+Tracy+J&rft.aulast=Loftus&rft.aufirst=William&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=116&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ L2 - http://sofia.usgs.gov/publications/ofr/00-449/ https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Conference title - Greater Everglades ecosystem restoration (GEER) conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - VA N1 - Document feature - illus. N1 - Last updated - 2016-10-25 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - aquatic environment; Arthropoda; biota; Chordata; Crustacea; ecology; Everglades; Florida; habitat; Invertebrata; Mandibulata; Pisces; Rockland Wetlands; United States; USGS; Vertebrata; wetlands ER - TY - JOUR T1 - Geoindicators making geologic connections to resource issues and research in the National Park Service AN - 51965860; 2003-052725 AB - Geoindicators are a class of environmental indicators developed in the mind-1990s by the International Union of Geological Sciences through the Commission on Geologic Sciences for Environmental Planning, the Geoindicators Working Group, chaired by Dr. Antony Berger. Geoindicators are tools to assess rapid change in the environment and provide some measure of ecological health by examining the earth systems (abiotic) component of ecosystems. Specifically, twenty-seven items were organized into a checklist. They examine primarily the near-surface geologic, hydrologic and atmospheric parameters of earth systems that are likely to change in the period of a human life span, i.e. the dynamic side of earth science. Geoindicators take a hard look at the human as well as the natural component of change in the ecosystem, identifying critical areas for measuring them independently. To comply with the 1992 Government Performance and Results Act and to focus on performance results, the National Park Service has adopted the geoindicators tool to implement portions of several strategic planning goals. The Service is starting the first year of a phased process to evaluate vital indicators of park ecosystems for long-term monitoring. A second strategic goal targets human influences on geologic processes in parks. A key to both those goals is geologic monitoring. JF - Abstracts with Programs - Geological Society of America AU - Higgins, Robert D AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 294 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - hydrology KW - monitoring KW - U. S. National Park Service KW - human activity KW - legislation KW - government agencies KW - atmosphere KW - ecosystems KW - indicators KW - research KW - Government Performance and Results Act KW - planning KW - ecology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51965860?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Geoindicators+making+geologic+connections+to+resource+issues+and+research+in+the+National+Park+Service&rft.au=Higgins%2C+Robert+D%3BAnonymous&rft.aulast=Higgins&rft.aufirst=Robert&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=294&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2003-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - atmosphere; ecology; ecosystems; government agencies; Government Performance and Results Act; human activity; hydrology; indicators; legislation; monitoring; planning; research; U. S. National Park Service ER - TY - JOUR T1 - Preliminary study of remediation strategies for historic acid mine drainage in Northeast Nevada AN - 51964335; 2003-052663 AB - Historic mine operators in NE Nevada have left behind various surface and underground mine workings. At one site operations included an adit designed to drain the underground sulfidic workings, which in turn produced acidic fluids as indicated in the following reactions: 2FeS2 + 2H2O + 7O2 --> 4H+ + 4SO4-- + 2Fe2+. Soluble Fe2+ is free to react further and oxidation of the ferrous ion to ferric ion occurs: 4Fe2+ + O2 + 4H+ --> 4Fe3+ + 2H2O. Ferric iron precipitates as hydrated iron oxide as indicated below: Fe3+ + 3H2O = Fe(OH)3(s) + 3H+. Fe(OH)3 precipitates into an amorphous, reddish "yellow boy slime". Efforts to raise the pH of mine effluent are generally centered around adding CaCO3 (limestone) to the effluent stream. However, the formation of Fe(OH)3 yellow boy slime interferes with efforts to increase pH by quickly coating limestone and halting the buffering reaction. In order to prevent the formation of Fe(OH)3, the oxidation of Fe2+ must be prevented. At an historic mine site, effluent draining from the "Red Spring" adit was at a pH of 2. 9 and had a very high iron content (62.9 mg/l). A current mine operator chose to test a remediation strategy by constructing an anoxic limestone drain consisting of 400 tons of 3/4 inch minus crushed limestone overlain by geomembrane filter fabric and clay soil which acts as an oxygen barrier. Effluent was then channeled through a bioreacting cell consisting of a 400 ton mixture of 50 percent straw and 50 percent steer manure. Effluent was then sent to finishing ponds containing cattails which further removed iron and other heavy metals from the effluent. The pH was raised from 2.9 to 7.5 and the iron content reduced from 62.9 mg/l to 0.5 mg/l. JF - Abstracts with Programs - Geological Society of America AU - Schmidt, Thomas G AU - McFarlane, Deborah N AU - Congdon, Roger D AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 284 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - mines KW - acid mine drainage KW - buffers KW - oxidation KW - effluents KW - pollution KW - geomembranes KW - iron KW - remediation KW - ferrous iron KW - ferric iron KW - northeastern Nevada KW - chemical reactions KW - precipitation KW - metals KW - anaerobic environment KW - acidic composition KW - calcium carbonate KW - pH KW - Nevada KW - heavy metals KW - abandoned mines KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51964335?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Preliminary+study+of+remediation+strategies+for+historic+acid+mine+drainage+in+Northeast+Nevada&rft.au=Schmidt%2C+Thomas+G%3BMcFarlane%2C+Deborah+N%3BCongdon%2C+Roger+D%3BAnonymous&rft.aulast=Schmidt&rft.aufirst=Thomas&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=284&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2003-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - abandoned mines; acid mine drainage; acidic composition; anaerobic environment; buffers; calcium carbonate; chemical reactions; effluents; ferric iron; ferrous iron; geomembranes; heavy metals; iron; metals; mines; Nevada; northeastern Nevada; oxidation; pH; pollution; precipitation; remediation; United States ER - TY - JOUR T1 - Pre-dinosaurian community from the Triassic Moenkopi Formation, Capitol Reef National Park AN - 51961601; 2003-052092 AB - Capitol Reef National Park is famous for its fossil reptile tracks and traces. Recent exploration in the park has revealed new sites of terrestrial and subaqueous vertebrate traces. Two different track types, have been identified in the Torrey Member of the Moenkopi Formation (Early Triassic). Four ichnostratigraphic units are distinguished in the Torrey Member based on the stratigraphic occurrence of fourteen track sites within the Park's boundaries. Tracks are preserved as convex hyporelief sandstone casts with filled imprints preserved in underlying mudstone. Exposed traces occur on the undersides of resistant sandstone ledges where the mudstone eroded away. The Torrey Member represents deposition on a broad, flat-lying floodplain. Tidal and other shallow-marine processes may have influenced deposition. Even-bedded mudstone, siltstone, claystone, and very fine grained sandstone containing abundant ripple marks are the dominant lithologic types. Ichnites indicating swimming/floating behavior are associated with the walking trackways in Capitol Reef and the adjacent area. The water depth was sufficiently shallow to permit the vertebrates to touch the substrate with manus and pedes when moving through the water. In many cases tail impressions or tail drag marks are present within the trackway sequences. Tracks form locally dense concentrations of toe scrape marks which sometimes occur with complete plantigrade manus and pes impressions. Many of the individual traces have long striations on the surfaces of their digital impressions which may have been produced by scales, pads or claws. In addition to vertebrate ichnites, fossil invertebrate tracks, trials, burrows, and other traces are abundant. In addition to vertebrate ichnites, fossil invertebrate tracks, trails, burrows, and other traces are abundant within the ichnostratigraphic units. JF - Abstracts with Programs - Geological Society of America AU - Mickelson, Debra L AU - Huntoon, Jacqueline E AU - Worthington, David AU - Santucci, Vincent L AU - Clark, Thomas O AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 265 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - shallow-water environment KW - Chordata KW - communities KW - Wayne County Utah KW - national parks KW - tracks KW - public lands KW - Mesozoic KW - Capitol Reef National Park KW - Reptilia KW - Triassic KW - marine environment KW - Garfield County Utah KW - burrows KW - casts KW - Utah KW - Vertebrata KW - trails KW - fluvial environment KW - Torrey Member KW - Tetrapoda KW - Moenkopi Formation KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51961601?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Pre-dinosaurian+community+from+the+Triassic+Moenkopi+Formation%2C+Capitol+Reef+National+Park&rft.au=Mickelson%2C+Debra+L%3BHuntoon%2C+Jacqueline+E%3BWorthington%2C+David%3BSantucci%2C+Vincent+L%3BClark%2C+Thomas+O%3BAnonymous&rft.aulast=Mickelson&rft.aufirst=Debra&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=265&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2003-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - burrows; Capitol Reef National Park; casts; Chordata; communities; fluvial environment; Garfield County Utah; marine environment; Mesozoic; Moenkopi Formation; national parks; public lands; Reptilia; shallow-water environment; Tetrapoda; Torrey Member; tracks; trails; Triassic; United States; Utah; Vertebrata; Wayne County Utah ER - TY - JOUR T1 - Use of differential rates of change in the potentiometric surface to discern aquifer heterogeneities and preferred paths in the vicinity of dewatering operations AN - 51923066; 2003-077017 AB - Information concerning transmissive characteristics of heterogeneous aquifers can be difficult to obtain, especially in the arid western U. S. where it is not normally easy to utilize dye tracing due to the general lack of conveniently located springs. Pumping tests in such heterogeneous aquifers may also be difficult to interpret and yield very general information. In some areas, notably large mines and other projects with major dewatering operations there is generally a large body of hydrographic data available. What is normally done with such data is the generation of a map showing the change in the potentiometric surface since the beginning of dewatering. Although such a map is useful, it is difficult to incorporate the data from new wells, which generally means that only the current potentiometric map is helpful. However, it is useful to produce a contour map of the instantaneous rate of change in the potentiometric surface for any given point in time. Such a map has the potential for showing connection between zones of high transmissivity. For example, a rate of decline in head at some distance from a dewatering project which is similar to rates near the pumping well or wells indicates a strong probability of a highly transmissive connection between the two areas. The greater the density of monitoring wells in a region, the more detail may be ascribed to the plot of transmissive characteristics. All available information must, of course, be considered in interpretation of these head loss rate plots. In complexly fractured or karstic areas, accuracy is highly dependent upon monitoring well density. This technique has been successfully applied to a major dewatering operation in the West. It is also possible to plot an acceleration term, or change in the head loss rate with time which reveals information about the rate at which pumping stresses propagate through the aquifer. JF - Abstracts with Programs - Geological Society of America AU - Congdon, Roger D AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 361 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - differentiation KW - pumping KW - rates KW - potentiometric surface KW - ground water KW - aquifers KW - drawdown KW - transmissivity KW - hydrographs KW - Western U.S. KW - heterogeneity KW - water wells KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51923066?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Use+of+differential+rates+of+change+in+the+potentiometric+surface+to+discern+aquifer+heterogeneities+and+preferred+paths+in+the+vicinity+of+dewatering+operations&rft.au=Congdon%2C+Roger+D%3BAnonymous&rft.aulast=Congdon&rft.aufirst=Roger&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=361&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2003-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquifers; differentiation; drawdown; ground water; heterogeneity; hydrographs; potentiometric surface; pumping; rates; transmissivity; United States; water wells; Western U.S. ER - TY - JOUR T1 - A Sundance seaside dinosaur community; 1000 footprints on the Jurassic shores of ancient Wyoming AN - 51885524; 2004-015076 AB - The Red Gulch Dinosaur Tracksite (the most extensive tracksite known in Wyoming) is a 40 acre area of public land administered by the BLM in the northeastern Bighorn Basin. Over 1000 theropod tracks have been discovered in the Bathonian (167 ma) Canyon Springs Member of the lower Sundance Formation. Although historically defined as marine in character, current work now demonstrates episodes of subaerial exposure during regressive phases of the Sundance Sea in the region of the Black Mountain High. Dinosaur tracks are preserved as impressions on a gray, ripple-bedded, oolitic, peritidal limestone along with invertebrate traces. Arranged into at least 125 discrete trackways, these tracks offer a unique glimpse of Middle Jurassic vertebrate evolution, ecology, and community development. Tridactyl pes impressions (ranging in length from 8-28 cm) were created by small- to medium-sized theropods walking in the water-saturated, thixotropic sediments close to the shore of the inland seaway. Because of the large population and areal extent, important morphological and preservational variations within and between trackways were analyzed. Irregular step lengths, variable straddle widths, and swerving trackway paths may be related to variations in substrate microenvironments or to intracommunity dynamics. The majority of the trackways (ranging from 2 to 44 steps) show preferred orientations with 2 trends of parallel to subparallel groupings to the south and southwest, suggesting gregarious behavior. However, several solitary trackways do cross these trends at right angles. To preserve the value of this unique paleontological resource, monitor current weathering, and facilitate the scientific research of the tracks, Geographic Information Systems documentation methodologies have been incorporated with traditional ichnology research methods, resulting in one of the most precise approaches for the measuring, recording, and evaluating of fossil tracks. In addition, detailed photogrammetric techniques have been used to document the site. As state-of-the-art technology continues to be utilized, the Red Gulch Dinosaur Tracksite has become one of the most intensively documented dinosaur tracksites in the world. JF - Abstracts with Programs - Geological Society of America AU - Breithaupt, Brent H AU - Southwell, Elizabeth H AU - Adams, Thomas L AU - Matthews, Neffra A AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 497 EP - 498 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - communities KW - regression KW - ripple marks KW - variations KW - paleoecology KW - Sundance Formation KW - bedding plane irregularities KW - intertidal environment KW - geographic information systems KW - Bighorn Basin KW - dinosaurs KW - sedimentary structures KW - Canyon Springs Member KW - Chordata KW - Upper Jurassic KW - Jurassic KW - biologic evolution KW - tracks KW - photogrammetry KW - nearshore environment KW - Middle Jurassic KW - Mesozoic KW - Reptilia KW - Black Mountain High KW - Wyoming KW - sea-level changes KW - coastal environment KW - information systems KW - Vertebrata KW - Tetrapoda KW - preservation KW - Red Gulch Dinosaur Tracksite KW - 11:Vertebrate paleontology KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51885524?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=A+Sundance+seaside+dinosaur+community%3B+1000+footprints+on+the+Jurassic+shores+of+ancient+Wyoming&rft.au=Breithaupt%2C+Brent+H%3BSouthwell%2C+Elizabeth+H%3BAdams%2C+Thomas+L%3BMatthews%2C+Neffra+A%3BAnonymous&rft.aulast=Breithaupt&rft.aufirst=Brent&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=497&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - bedding plane irregularities; Bighorn Basin; biologic evolution; Black Mountain High; Canyon Springs Member; Chordata; coastal environment; communities; dinosaurs; geographic information systems; information systems; intertidal environment; Jurassic; Mesozoic; Middle Jurassic; nearshore environment; paleoecology; photogrammetry; preservation; Red Gulch Dinosaur Tracksite; regression; Reptilia; ripple marks; sea-level changes; sedimentary structures; Sundance Formation; Tetrapoda; tracks; United States; Upper Jurassic; variations; Vertebrata; Wyoming ER - TY - JOUR T1 - Use of historical, geomorphic, and archaeological information for paleoflood estimates on the lower American River, California AN - 51881354; 2004-018412 AB - Urbanization and development along many river corridors are significant impediments to developing paleoflood data because the channel geometry for these rivers frequently cannot be reconstructed with any confidence. In some cases, if sufficient historical information is available, the pre-development channel geometry may be reconstructed. Along the lower American River, detailed mapping, ca 1906, was done in response to concerns related to the impact of hydraulic mining debris on flood hazards in Sacramento. These maps predate dam and levee construction, urbanization, and the advent of mechanized hydraulic mining along this reach of the river. The maps include detailed topography, agricultural land-use and crop information, locations of rock outcrops in the channel, and dominant bed materials in the channel. The relative accuracy of the 1906 topographic data can be assessed by comparison to recent topographic maps done to modern standards. A composite topographic map, derived from the 1906 and recent maps, includes terrace and bank geometry that has been destroyed since 1906 but uses channel profiles from recent mapping. The resulting topographic base map is used for paleoflood flow modeling and compilation of historical, geomorphic, and archaeological information on floods. Historical and gaging information on flood stages before dam and levee construction provides a basis for judging the uncertainties associated with the discharge and inundation estimates derived from the flow modeling. Archaeological data from several sites on the lower American River along with historical and contemporary soils maps provide stratigraphic limits on the extent of flooding. Dating of the archaeological sites provides minimum-age limits for the geomorphic surfaces on which the sites are located. With these data, despite the extensive 20th century modification of the river due to mining, levee and dam construction, and urbanization, a paleoflood record that spans several thousand years can still be developed. JF - Abstracts with Programs - Geological Society of America AU - Ostenaa, Dean A AU - Klinger, Ralph E AU - O'Connell, Daniel R H AU - Jones, Matthew B AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 509 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - gauging KW - geologic hazards KW - development KW - Sacramento County California KW - terraces KW - urbanization KW - California KW - topography KW - dams KW - floods KW - paleofloods KW - American River KW - discharge KW - soils KW - archaeology KW - Central California KW - agriculture KW - Sacramento California KW - levees KW - history KW - channel geometry KW - reconstruction KW - geomorphology KW - accuracy KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51881354?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Use+of+historical%2C+geomorphic%2C+and+archaeological+information+for+paleoflood+estimates+on+the+lower+American+River%2C+California&rft.au=Ostenaa%2C+Dean+A%3BKlinger%2C+Ralph+E%3BO%27Connell%2C+Daniel+R+H%3BJones%2C+Matthew+B%3BAnonymous&rft.aulast=Ostenaa&rft.aufirst=Dean&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=509&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - accuracy; agriculture; American River; archaeology; California; Central California; channel geometry; dams; development; discharge; floods; gauging; geologic hazards; geomorphology; history; land use; levees; paleofloods; reconstruction; Sacramento California; Sacramento County California; soils; terraces; topography; United States; urbanization ER - TY - JOUR T1 - Using imaging spectroscopy to map acidic mine waste AN - 51840477; 2004-044899 JF - Environmental Science & Technology, ES & T AU - Swayze, Gregg A AU - Smith, Kathleen S AU - Clark, Roger N AU - Sutley, Stephen J AU - Pearson, Ronald M AU - Vance, J Sam AU - Hageman, Philip L AU - Briggs, Paul H AU - Meier, Allen L AU - Singleton, Michael J AU - Roth, Shelly Y1 - 2000/01// PY - 2000 DA - January 2000 SP - 47 EP - 54 PB - American Chemical Society, Washington, DC VL - 34 IS - 1 SN - 0013-936X, 0013-936X KW - United States KW - imagery KW - goethite KW - Mosquito Range KW - drinking water KW - iron KW - ground water KW - infrared methods KW - AVIRIS KW - California Gulch Site KW - oxides KW - leachate KW - pH KW - Superfund sites KW - Leadville Colorado KW - mines KW - concentration KW - acid mine drainage KW - waste rock KW - oxidation KW - drainage KW - surface water KW - geophysical methods KW - acid rock drainage KW - pollution KW - ferrous iron KW - Lake County Colorado KW - metals KW - acidification KW - pyrite KW - waste disposal KW - Colorado KW - tailings KW - sulfides KW - spectroscopy KW - remote sensing KW - airborne methods KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51840477?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Using+imaging+spectroscopy+to+map+acidic+mine+waste&rft.au=Swayze%2C+Gregg+A%3BSmith%2C+Kathleen+S%3BClark%2C+Roger+N%3BSutley%2C+Stephen+J%3BPearson%2C+Ronald+M%3BVance%2C+J+Sam%3BHageman%2C+Philip+L%3BBriggs%2C+Paul+H%3BMeier%2C+Allen+L%3BSingleton%2C+Michael+J%3BRoth%2C+Shelly&rft.aulast=Swayze&rft.aufirst=Gregg&rft.date=2000-01-01&rft.volume=34&rft.issue=1&rft.spage=47&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 32 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - acid mine drainage; acid rock drainage; acidification; airborne methods; AVIRIS; California Gulch Site; Colorado; concentration; drainage; drinking water; ferrous iron; geophysical methods; goethite; ground water; imagery; infrared methods; iron; Lake County Colorado; leachate; Leadville Colorado; metals; mines; Mosquito Range; oxidation; oxides; pH; pollution; pyrite; remote sensing; spectroscopy; sulfides; Superfund sites; surface water; tailings; United States; waste disposal; waste rock ER - TY - JOUR T1 - Guide to geologic features at Petrified Forest National Park AN - 51776946; 2004-084652 JF - Arizona Geological Survey Down-to-Earth Series AU - Bezy, John V AU - Trevena, Arthur S Y1 - 2000 PY - 2000 DA - 2000 SP - 48 PB - Arizona Geological Survey, Tucson, AZ VL - 10 KW - United States KW - lithostratigraphy KW - caliche KW - petrology KW - Petrified Forest National Park KW - guidebook KW - drainage patterns KW - landforms KW - piping KW - erosion features KW - Chinle Formation KW - areal geology KW - weathering KW - Mesozoic KW - elementary geology KW - sedimentary rocks KW - Triassic KW - rock varnish KW - Arizona KW - Upper Triassic KW - unconformities KW - carbonate rocks KW - faults KW - 13:Areal geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51776946?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Bezy%2C+John+V%3BTrevena%2C+Arthur+S&rft.aulast=Bezy&rft.aufirst=John&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=1892001136&rft.btitle=Guide+to+geologic+features+at+Petrified+Forest+National+Park&rft.title=Guide+to+geologic+features+at+Petrified+Forest+National+Park&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - AZ N1 - Document feature - illus. incl. geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - #03354 N1 - SubjectsTermNotLitGenreText - areal geology; Arizona; caliche; carbonate rocks; Chinle Formation; drainage patterns; elementary geology; erosion features; faults; guidebook; landforms; lithostratigraphy; Mesozoic; Petrified Forest National Park; petrology; piping; rock varnish; sedimentary rocks; Triassic; unconformities; United States; Upper Triassic; weathering ER - TY - JOUR T1 - Dynamic deformation analysis and three-dimensional post-earthquake stability analysis for Casitas Dam, California AN - 51726702; 2005-033168 AB - Casitas Dam is a 335-foot high, zoned earthfill embankment located in a highly seismic area, near Ventura, California. The U.S. Bureau of Reclamation (Reclamation) concluded that the foundations of the dam were susceptible to liquefaction in the event of an earthquake, and that liquefaction of the foundations could lead to failure of the embankment and uncontrolled release of the reservoir. Reclamation developed designs for dam safety modifications to increase the seismic stability of the downstream section of the dam, but the planned modifications do not include treatment of the upstream foundations. Two-dimensional dynamic deformation analyses and three-dimensional post-earthquake stability analyses were performed to evaluate the expected performance of the untreated upstream slope during and after significant earthquake shaking. The deformation analyses indicated that significant deformations would be expected in the upstream section of the embankment dam, but that freeboard would be maintained at the downstream edge of the crest of the modified dam. The three dimensional stability analyses indicated that three-dimensional factors of safety for the upstream slope that were between 10% and 35% higher than the corresponding two dimensional factors of safety. Based on these results, the two-dimensional stability analyses may be over-estimating the deformations in the upstream section of the dam. This paper includes a discussion of the methods used in the analyses, the results obtained, and limitations and other issues that had to be addressed to complete the analyses. JF - Geotechnical Special Publication AU - France, John W AU - Adams, Tiffany AU - Wilson, John AU - Gillett, Dave A2 - Pak, Ronald Y. S. A2 - Yamamura, Jerry Y1 - 2000 PY - 2000 DA - 2000 SP - 123 EP - 147 PB - American Society of Civil Engineers, New York, NY VL - 107 SN - 0895-0563, 0895-0563 KW - United States KW - embankments KW - shear strength KW - Ventura County California KW - three-dimensional models KW - stability KW - deformation KW - analysis KW - Ventura California KW - liquefaction KW - California KW - earth dams KW - Southern California KW - dynamics KW - dams KW - gravity dams KW - Casitas Dams KW - slope stability KW - Coyote Creek KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51726702?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geotechnical+Special+Publication&rft.atitle=Dynamic+deformation+analysis+and+three-dimensional+post-earthquake+stability+analysis+for+Casitas+Dam%2C+California&rft.au=France%2C+John+W%3BAdams%2C+Tiffany%3BWilson%2C+John%3BGillett%2C+Dave&rft.aulast=France&rft.aufirst=John&rft.date=2000-01-01&rft.volume=107&rft.issue=&rft.spage=123&rft.isbn=0784405204&rft.btitle=&rft.title=Geotechnical+Special+Publication&rft.issn=08950563&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geotechnical special sessions of Geo-Denver 2000 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - NY N1 - Document feature - illus. incl. 4 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - analysis; California; Casitas Dams; Coyote Creek; dams; deformation; dynamics; earth dams; embankments; gravity dams; liquefaction; shear strength; slope stability; Southern California; stability; three-dimensional models; United States; Ventura California; Ventura County California ER - TY - JOUR T1 - Environmental geochemical studies of stratabound, porphyry, and skarn mineral deposits in Wrangell-St. Elias National Park and Preserve, Alaska AN - 51598896; 2006-033047 JF - Programme & Abstracts - International Symposium on Environmental Geochemistry (ISEG) AU - Eppinger, Robert G AU - Briggs, Paul H AU - Rosenkrans, Danny AU - Ballestrazze, Vanessa AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 81 PB - [varies], [varies] VL - 5 KW - Wrangell-Saint Elias National Park KW - United States KW - volcanic rocks KW - stratabound deposits KW - molybdenum ores KW - igneous rocks KW - buffers KW - environmental effects KW - sedimentary rocks KW - major elements KW - metamorphic rocks KW - gold ores KW - copper ores KW - trace elements KW - Bond Creek Deposit KW - water pollution KW - skarn KW - porphyry copper KW - mobility KW - geochemistry KW - pH KW - Nabesca Deposit KW - Kennecott Alaska KW - sulfates KW - porphyry molybdenum KW - pollution KW - porphyry KW - Southern Alaska KW - natural resources KW - metals KW - metal ores KW - pyrite KW - Alaska KW - seasonal variations KW - Orange Hill Deposit KW - carbonate rocks KW - sulfides KW - carbonates KW - metasomatic rocks KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51598896?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Programme+%26+Abstracts+-+International+Symposium+on+Environmental+Geochemistry+%28ISEG%29&rft.atitle=Environmental+geochemical+studies+of+stratabound%2C+porphyry%2C+and+skarn+mineral+deposits+in+Wrangell-St.+Elias+National+Park+and+Preserve%2C+Alaska&rft.au=Eppinger%2C+Robert+G%3BBriggs%2C+Paul+H%3BRosenkrans%2C+Danny%3BBallestrazze%2C+Vanessa%3BAnonymous&rft.aulast=Eppinger&rft.aufirst=Robert&rft.date=2000-01-01&rft.volume=5&rft.issue=&rft.spage=81&rft.isbn=&rft.btitle=&rft.title=Programme+%26+Abstracts+-+International+Symposium+on+Environmental+Geochemistry+%28ISEG%29&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 5th international symposium on Environmental geochemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #06649 N1 - SubjectsTermNotLitGenreText - Alaska; Bond Creek Deposit; buffers; carbonate rocks; carbonates; copper ores; environmental effects; geochemistry; gold ores; igneous rocks; Kennecott Alaska; major elements; metal ores; metals; metamorphic rocks; metasomatic rocks; mobility; molybdenum ores; Nabesca Deposit; natural resources; Orange Hill Deposit; pH; pollution; porphyry; porphyry copper; porphyry molybdenum; pyrite; seasonal variations; sedimentary rocks; skarn; Southern Alaska; stratabound deposits; sulfates; sulfides; trace elements; United States; volcanic rocks; water pollution; Wrangell-Saint Elias National Park ER - TY - JOUR T1 - Geology and hydrogeology of Timpanogos Cave National Monument, Utah AN - 51361120; 2002-031787 AB - The Timpanogos Cave system consists of three major caves, Hansen, Middle, and Timpanogos, which have been connected by tunnels. The cave system occurs in the Mississippian Deseret Limestone high on the steep southern wall of American Fork Canyon. Rocks in the American Fork Canyon region record a complex geologic history that includes: (1) deposition of a thick sequence of Late Precambrian and Paleozoic age sedimentary rocks, (2) thrust faulting and folding during the Late Cretaceous Sevier orogeny, (3) extensional faulting that culminated with the uplift of the Wasatch Range beginning about 17 million years ago as part of Basin and Range extension, (4) down-cutting of the deep stream channels accompanying the Wasatch Range uplift, and (5) and Pleistocene glaciation. Locations and orientations of cave passages are greatly influenced by faulting. Cave morphology suggests that most cave dissolution was deep phreatic (that is, below the water table). Cave sediments indicate that water from the American Fork River moved through the cave system prior to uplift to the present cave location. After the cave was elevated above the bed of the American Fork River and erosion opened the face of the cave system to the atmosphere, widespread deposition of calcite speleothems began in response to the evaporation of infiltrating groundwater recharging in the overlying soil mantle. The rate of groundwater inflow into the cave system is greatest in Hansen Cave, which is located near the cliff face. JF - Utah Geological Association Publication AU - Mayo, Alan L AU - Herron, David AU - Nelson, Stephen T AU - Tingey, David AU - Tranel, Mike J A2 - Sprinkel, Douglas A. A2 - Chidsey, Thomas C., Jr. A2 - Anderson, Paul B. Y1 - 2000 PY - 2000 DA - 2000 SP - 263 EP - 276 PB - Utah Geological Association, Salt Lake City, UT VL - 28 SN - 0375-8176, 0375-8176 KW - United States KW - Mississippian KW - Hansen Cave KW - glaciation KW - caves KW - uplifts KW - extension tectonics KW - areal geology KW - ground water KW - Cenozoic KW - national monuments KW - folds KW - tectonics KW - depositional environment KW - faults KW - Timpanogos Cave National Monument KW - speleothems KW - hydrology KW - Deseret Limestone KW - Timpanogos Cave KW - Quaternary KW - Precambrian KW - Colorado Plateau KW - Paleozoic KW - landform evolution KW - Carboniferous KW - Utah County Utah KW - public lands KW - Phanerozoic KW - lithofacies KW - recharge KW - thrust faults KW - infiltration KW - American Fork Canyon KW - Pleistocene KW - Utah KW - solution features KW - 13:Areal geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51361120?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Utah+Geological+Association+Publication&rft.atitle=Geology+and+hydrogeology+of+Timpanogos+Cave+National+Monument%2C+Utah&rft.au=Mayo%2C+Alan+L%3BHerron%2C+David%3BNelson%2C+Stephen+T%3BTingey%2C+David%3BTranel%2C+Mike+J&rft.aulast=Mayo&rft.aufirst=Alan&rft.date=2000-01-01&rft.volume=28&rft.issue=&rft.spage=263&rft.isbn=0970257104&rft.btitle=&rft.title=Utah+Geological+Association+Publication&rft.issn=03758176&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 28 N1 - PubXState - UT N1 - Document feature - illus. incl. sects., strat. col., 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - UGAPB4 N1 - SubjectsTermNotLitGenreText - American Fork Canyon; areal geology; Carboniferous; caves; Cenozoic; Colorado Plateau; depositional environment; Deseret Limestone; extension tectonics; faults; folds; glaciation; ground water; Hansen Cave; hydrology; infiltration; landform evolution; lithofacies; Mississippian; national monuments; Paleozoic; Phanerozoic; Pleistocene; Precambrian; public lands; Quaternary; recharge; solution features; speleothems; tectonics; thrust faults; Timpanogos Cave; Timpanogos Cave National Monument; United States; uplifts; Utah; Utah County Utah ER - TY - JOUR T1 - Arctic research of the United States AN - 51185878; 2001-032257 JF - Arctic Research of the United States A2 - Myers, Charles E. A2 - Haugh, John A2 - Cate, David W. Y1 - 2000 PY - 2000 DA - 2000 SP - 154 PB - National Science Foundation, Arlington, VA VL - 14, Summer SN - 1045-4764, 1045-4764 KW - United States KW - programs KW - financing KW - Arctic region KW - government agencies KW - research KW - 13:Areal geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51185878?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Arctic+research+of+the+United+States&rft.title=Arctic+research+of+the+United+States&rft.issn=10454764&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - VA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Arctic region; financing; government agencies; programs; research; United States ER - TY - JOUR T1 - A site specific probabilistic ground motion assessment for Tarheel Dam, Coos Bay, Oregon AN - 51183428; 2002-060981 JF - Special Paper - Oregon, Department of Geology and Mineral Industries AU - Laforge, Roland C AU - Clague, John J AU - Atwater, Brian F AU - Wang, Kelin AU - Wang, Yumei AU - Wong, Ivan G Y1 - 2000 PY - 2000 DA - 2000 SP - 69 PB - Oregon Department of Geology and Mineral Industries, Portland, OR SN - 0278-3703, 0278-3703 KW - United States KW - soil mechanics KW - geologic hazards KW - site exploration KW - magnitude KW - stability KW - slip rates KW - Coos County Oregon KW - subduction KW - Coos Bay KW - Tarheel Dam KW - models KW - Oregon KW - plate tectonics KW - seismicity KW - earthquake prediction KW - seismic risk KW - dams KW - ground motion KW - risk assessment KW - earthquakes KW - 30:Engineering geology KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51183428?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Paper+-+Oregon%2C+Department+of+Geology+and+Mineral+Industries&rft.atitle=A+site+specific+probabilistic+ground+motion+assessment+for+Tarheel+Dam%2C+Coos+Bay%2C+Oregon&rft.au=Laforge%2C+Roland+C%3BClague%2C+John+J%3BAtwater%2C+Brian+F%3BWang%2C+Kelin%3BWang%2C+Yumei%3BWong%2C+Ivan+G&rft.aulast=Laforge&rft.aufirst=Roland&rft.date=2000-01-01&rft.volume=&rft.issue=&rft.spage=69&rft.isbn=&rft.btitle=&rft.title=Special+Paper+-+Oregon%2C+Department+of+Geology+and+Mineral+Industries&rft.issn=02783703&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Penrose conference "Great Cascadia earthquake tricentennial" N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 4 N1 - PubXState - OR N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Coos Bay; Coos County Oregon; dams; earthquake prediction; earthquakes; geologic hazards; ground motion; magnitude; models; Oregon; plate tectonics; risk assessment; seismic risk; seismicity; site exploration; slip rates; soil mechanics; stability; subduction; Tarheel Dam; United States ER - TY - JOUR T1 - Growing interest in gas hydrates AN - 51164916; 2003-071304 AB - To some people in the energy industry, gas hydrates are known for the trouble they cause by blocking pipelines and production tubing. But for others, hydrates are a potential hydrocarbon resource, far surpassing the potential of conventional natural gas resources. For both groups, learning more about hydrates is essential. JF - Oilfield Review AU - Collett, Timothy S AU - Lewis, Rick AU - Uchida, Takashi Y1 - 2000 PY - 2000 DA - 2000 SP - 43 EP - 57 PB - Schlumberger, Sugar Land, TX VL - 12 IS - 2 SN - 0923-1730, 0923-1730 KW - United States KW - geologic hazards KW - gas hydrates KW - natural gas KW - global KW - petroleum KW - Russian Federation KW - Prudhoe Bay KW - Messoyakha Field KW - Siberia KW - Commonwealth of Independent States KW - potential deposits KW - Northern Alaska KW - Alaska KW - Asia KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51164916?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Oilfield+Review&rft.atitle=Growing+interest+in+gas+hydrates&rft.au=Collett%2C+Timothy+S%3BLewis%2C+Rick%3BUchida%2C+Takashi&rft.aulast=Collett&rft.aufirst=Timothy&rft.date=2000-01-01&rft.volume=12&rft.issue=2&rft.spage=43&rft.isbn=&rft.btitle=&rft.title=Oilfield+Review&rft.issn=09231730&rft_id=info:doi/ L2 - http://www.slb.com/content/services/resources/oilfieldreview/index.asp LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - TX N1 - Document feature - illus. incl. geol. sketch map, sect. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Alaska; Asia; Commonwealth of Independent States; gas hydrates; geologic hazards; global; Messoyakha Field; natural gas; Northern Alaska; petroleum; potential deposits; Prudhoe Bay; Russian Federation; Siberia; United States ER - TY - JOUR T1 - Controls on nitrogen flux in alpine/subalpine watersheds of Colorado AN - 51024172; 2000-041958 JF - Water Resources Research AU - Campbell, Donald H AU - Baron, Jill S AU - Tonnessen, Kathy A AU - Brooks, Paul D AU - Schuster, Paul F AU - Williams, Mark W Y1 - 2000/01// PY - 2000 DA - January 2000 SP - 37 EP - 47 PB - American Geophysical Union, Washington, DC VL - 36 IS - 1 SN - 0043-1397, 0043-1397 KW - United States KW - hydrology KW - Loch Vale Watershed KW - subalpine environment KW - terrestrial environment KW - Front Range KW - biochemistry KW - surface water KW - rivers and streams KW - watersheds KW - solutes KW - Rocky Mountain National Park KW - ecosystems KW - atmospheric precipitation KW - hydrochemistry KW - nitrogen KW - inorganic materials KW - Larimer County Colorado KW - Colorado KW - geochemistry KW - climate KW - alpine environment KW - 02B:Hydrochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51024172?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Controls+on+nitrogen+flux+in+alpine%2Fsubalpine+watersheds+of+Colorado&rft.au=Campbell%2C+Donald+H%3BBaron%2C+Jill+S%3BTonnessen%2C+Kathy+A%3BBrooks%2C+Paul+D%3BSchuster%2C+Paul+F%3BWilliams%2C+Mark+W&rft.aulast=Campbell&rft.aufirst=Donald&rft.date=2000-01-01&rft.volume=36&rft.issue=1&rft.spage=37&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F1999WR900283 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 42 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2014-03-14 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - alpine environment; atmospheric precipitation; biochemistry; climate; Colorado; ecosystems; Front Range; geochemistry; hydrochemistry; hydrology; inorganic materials; Larimer County Colorado; Loch Vale Watershed; nitrogen; rivers and streams; Rocky Mountain National Park; solutes; subalpine environment; surface water; terrestrial environment; United States; watersheds DO - http://dx.doi.org/10.1029/1999WR900283 ER - TY - JOUR T1 - Shallow seismic reflection survey at Wickiup Dam in central Oregon AN - 50913067; 2000-046903 AB - Concerns about potential liquefaction and resulting flowslide type failures at Wickiup Dam in Central Oregon prompted geophysical studies of the left wing dike, studies which included a high resolution seismic reflection survey. High resolution seismic reflection data effectively delineated structures and correlated lithologies to shallow borehole data above the surface of the dipping, basalt bedrock on the downstream side of the dam. Unconsolidated, Quaternary lacustrine, fluvial, and volcanic-derived sediments overlay the bedrock surface, which is encountered within 50 feet of the ground surface near the dam outlet works and plunges to depths of at least 1000 ft below ground surface 5000 ft west of the outlet works. Sediments that filled the seismically defined bedrock surface possess a wide range of bedding geometries likely indicative of multiple episodes of erosion and deposition, driven by the modern and ancestral Deschutes River system. Dominant frequencies in excess of 250 Hz evident on stacked sections provide vertical bed resolution on the order of 10 ft at depths of over 900 ft. Layering interpreted on stacked seismic data within the basaltic bedrock has been inferred to represent contacts between different basalt flow episodes and volcanic sediments (ash, cinder, etc.) originating from Wickiup Butte. Frequency inversions, which are common indicators of inappropriately stacked/interpreted seismic sections, evident on these stacked data are actual inversions that can be verified by correlating the stacked sections with shot gathers, a process rarely possible on high resolution stacked seismic sections. If geologic interpretations, instrumental in engineering designs for resistance to seismic loading, would have been based on existing drill data from the upper 300 ft alone, a relatively flat laying, cyclic sequence of sands, gravels, volcanic ash, silt, and clay over-lying the mudflow and basalt materials would have been inferred to an estimated depth of several hundred to more than one thousand feet. Seismic data provided an extremely detailed image of the subsurface, delineating channel features within the sediments and a dipping basalt bedrock surface. Amplification potential of these kinds of geometries may impact the levels of expected ground motion for a given size seismic event. JF - Proceedings of SAGEEP AU - Miller, Richard D AU - Markiewicz, Richard D A2 - Powers, Michael H. A2 - Ibrahim, Abou-Bakr A2 - Cramer, Lynn Y1 - 2000 PY - 2000 DA - 2000 SP - 1245 EP - 1254 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 2000 KW - United States KW - reflection KW - volcanic rocks KW - geophysical surveys KW - erosion KW - site exploration KW - igneous rocks KW - data processing KW - liquefaction KW - Cenozoic KW - Oregon KW - foundations KW - basalts KW - sediments KW - algorithms KW - bedrock KW - high-resolution methods KW - Quaternary KW - geophysical methods KW - correlation KW - central Oregon KW - seismic methods KW - Deschutes County Oregon KW - boreholes KW - deposition KW - Wickiup Butte KW - surveys KW - Wickiup Dam KW - field studies KW - 30:Engineering geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50913067?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+SAGEEP&rft.atitle=Shallow+seismic+reflection+survey+at+Wickiup+Dam+in+central+Oregon&rft.au=Miller%2C+Richard+D%3BMarkiewicz%2C+Richard+D&rft.aulast=Miller&rft.aufirst=Richard&rft.date=2000-01-01&rft.volume=2000&rft.issue=&rft.spage=1245&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+SAGEEP&rft.issn=1554-8015&rft_id=info:doi/ L2 - http://scitation.aip.org/sageep/ LA - English DB - GeoRef N1 - Conference title - Symposium on the Application of geophysics to engineering and environmental problems N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 12 N1 - PubXState - CO N1 - Document feature - illus. incl. sects., sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algorithms; basalts; bedrock; boreholes; Cenozoic; central Oregon; correlation; data processing; deposition; Deschutes County Oregon; erosion; field studies; foundations; geophysical methods; geophysical surveys; high-resolution methods; igneous rocks; liquefaction; Oregon; Quaternary; reflection; sediments; seismic methods; site exploration; surveys; United States; volcanic rocks; Wickiup Butte; Wickiup Dam ER - TY - JOUR T1 - Changing role of geophysics; U. S. Bureau of Reclamation AN - 50909961; 2000-046786 AB - In response to decisions on dam safety issues being directed to a risk based process requiring probability hazard assessments, geophysical applications strive for quantifiable results, estimates of detection limits and accuracy. Many geophysical methods are employed for evaluation of existing structures as well as soil and rock foundations, corrosion protection for pipelines, environmental and stream restoration, seismic monitoring and seismic hazard assessment. Methods include seismic refraction, high resolution reflection, multiple surface resistivity and self potential methods, ground penetrating radar, gravity/magnetics, borehole geophysical logging, cross hole and down hole shear wave velocity measurements, and cross hole and surface to surface seismic tomography. Seismic monitoring for site ground motion is used to determine site response characteristics, early warning and emergency action systems, and deep brine injection monitoring. Utilizing existing oil and gas exploration data aids seismic source characterization in blind thrust fault evaluation. Research activities include cooperative efforts with the Canadian Electric Association on Internal Diagnostics for Embankment Dams, focusing on quantification of seismic, self potential, temperature, and resistivity methods. Other research includes development of seismo-electric measurements for seepage path identification and seismic tomography for imaging internal quality of concrete and embankment dams. Public safety and economic decisions are being based on geophysical results requiring well planned surveys, sound interpretations, and clear presentations, incorporating engineering and geologic properties. JF - Proceedings of SAGEEP AU - Wright, Jerry A2 - Powers, Michael H. A2 - Ibrahim, Abou-Bakr A2 - Cramer, Lynn Y1 - 2000 PY - 2000 DA - 2000 SP - 175 EP - 184 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 2000 KW - tomography KW - reflection KW - engineering properties KW - site exploration KW - ground-penetrating radar KW - reclamation KW - well-logging KW - elastic waves KW - seismic logging KW - refraction KW - seepage KW - pipelines KW - evaluation KW - gravity methods KW - foundations KW - dams KW - corrosion KW - body waves KW - monitoring KW - reservoirs KW - U. S. Bureau of Reclamation KW - structural analysis KW - geophysical methods KW - electrical methods KW - radar methods KW - magnetic methods KW - resistivity KW - seismic methods KW - self-potential methods KW - boreholes KW - brines KW - risk assessment KW - seismic waves KW - S-waves KW - instruments KW - 30:Engineering geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50909961?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+SAGEEP&rft.atitle=Changing+role+of+geophysics%3B+U.+S.+Bureau+of+Reclamation&rft.au=Wright%2C+Jerry&rft.aulast=Wright&rft.aufirst=Jerry&rft.date=2000-01-01&rft.volume=2000&rft.issue=&rft.spage=175&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+SAGEEP&rft.issn=1554-8015&rft_id=info:doi/ L2 - http://scitation.aip.org/sageep/ LA - English DB - GeoRef N1 - Conference title - Symposium on the Application of geophysics to engineering and environmental problems N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 7 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - body waves; boreholes; brines; corrosion; dams; elastic waves; electrical methods; engineering properties; evaluation; foundations; geophysical methods; gravity methods; ground-penetrating radar; instruments; magnetic methods; monitoring; pipelines; radar methods; reclamation; reflection; refraction; reservoirs; resistivity; risk assessment; S-waves; seepage; seismic logging; seismic methods; seismic waves; self-potential methods; site exploration; structural analysis; tomography; U. S. Bureau of Reclamation; well-logging ER - TY - JOUR T1 - Loon Lake breakout; gates of the Arctic National Park, Alaska AN - 50907960; 2001-003560 AB - Two major storms hit the Brooks Range in northern Alaska in late August, 1994 causing river flooding and the catastrophic breakout of Loon Lake. The lake, located in the Gates of the Arctic National Park and Preserve, sits perched at an elevation of 2400 feet in the John River watershed. Originally the lake was approximately 1.1 by 0.3 miles. Loon Creek, a small groundwater-fed stream originating at the base of the glacial moraine on the west wall, was the only stream draining from the lake prior to the breakout. Based on the data gathered after the breakout, it appears that rainfall and runoff from the storm filled the lake to the top of the west wall, and then began to flow over the wall. The high lake level and wind-driven seiches added pressure and saturation to the upper wall and, at some critical point, the wall broke sending a massive volume of lakewater down the small Loon Creek drainage. Initial measurements showed that Loon Lake dropped 24.6 vertical feet during the August 1994 storms. The lake level was still slowly dropping in 1995 and 1996 as the new outlet stream continued to cut back into the soft material of the lake bottom. As the lake surface dropped vertically, former lakebed was exposed forming "new" terrestrial habitat. JF - Technical Publication Series - American Water Resources Association AU - Deschu, Nancy A2 - Kane, Douglas L. Y1 - 2000 PY - 2000 DA - 2000 SP - 49 EP - 53 PB - AWRA - American Water Resources Association, Bethesda, MD VL - 00-1 SN - 0731-9789, 0731-9789 KW - United States KW - hydrology KW - succession KW - retaining walls KW - geologic hazards KW - rainfall KW - Arctic National Wildlife Refuge KW - lakes KW - watersheds KW - Northern Alaska KW - moraines KW - floods KW - Alaska KW - storms KW - catastrophes KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50907960?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Technical+Publication+Series+-+American+Water+Resources+Association&rft.atitle=Loon+Lake+breakout%3B+gates+of+the+Arctic+National+Park%2C+Alaska&rft.au=Deschu%2C+Nancy&rft.aulast=Deschu&rft.aufirst=Nancy&rft.date=2000-01-01&rft.volume=00-1&rft.issue=&rft.spage=49&rft.isbn=1882132505&rft.btitle=&rft.title=Technical+Publication+Series+-+American+Water+Resources+Association&rft.issn=07319789&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AWRA's 2000 spring specialty conference; Water resources in extreme environments N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 7 N1 - PubXState - MD N1 - Document feature - 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Alaska; Arctic National Wildlife Refuge; catastrophes; floods; geologic hazards; hydrology; lakes; moraines; Northern Alaska; rainfall; retaining walls; storms; succession; United States; watersheds ER - TY - JOUR T1 - Stream and river water quality in Denali National Park and Preserve, Alaska AN - 50905037; 2001-003572 AB - Water samples were collected from 91 sampling sites in 72 streams and rivers throughout Denali National Park and Preserve from 1994-1997. Clear and glacier-fed streams on both the north and south sides of the Alaska Range were sampled for water quality. Analyses included pH, electrical conductivity, chloride, nitrate, sulfate, calcium, magnesium, sodium, potassium, ammonium, alkalinity, turbidity, and suspended sediment. Instantaneous flow also was measured at the time of sample collection. Virtually all samples were alkaline (pH>7). North side waters had significantly higher (alpha = 0.05) pH, alkalinity, conductivity, and ionic concentrations than south side waters. Only I north side sample had a pH<7.00. On the north side, mean ionic concentrations were relatively comparable between glacier-fed and clear water streams. Significant differences in chemical concentrations existed between glacier-fed and clear water streams on the south side. Neither suspended sediment nor turbidity differed significantly between north and south side clear water streams on the south side. Neither suspended sediment nor turbidity differed significantly between north and south side clear water streams. However, turbidity and suspended sediment were significantly greater in north side glacier-fed streams than south side glacier-fed streams. Chemical and sediment characteristics and differences are attributed largely to geology. Streams traversing marine sedimentary rocks had higher dissolved ion concentrations than those traversing weather-resistant granitic rocks. JF - Technical Publication Series - American Water Resources Association AU - Edwards, Pamela AU - Tranel, Michael AU - Brease, Philip AU - Sousanes, Pamela A2 - Kane, Douglas L. Y1 - 2000 PY - 2000 DA - 2000 SP - 203 EP - 207 PB - AWRA - American Water Resources Association, Bethesda, MD VL - 00-1 SN - 0731-9789, 0731-9789 KW - United States KW - hydrology KW - water quality KW - chemical analysis KW - sediment transport KW - stream sediments KW - surface water KW - rivers and streams KW - Denali National Park KW - glacial features KW - hydrochemistry KW - environmental analysis KW - sediments KW - turbidity KW - Alaska KW - geochemistry KW - fluvial environment KW - preservation KW - pH KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50905037?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Technical+Publication+Series+-+American+Water+Resources+Association&rft.atitle=Stream+and+river+water+quality+in+Denali+National+Park+and+Preserve%2C+Alaska&rft.au=Edwards%2C+Pamela%3BTranel%2C+Michael%3BBrease%2C+Philip%3BSousanes%2C+Pamela&rft.aulast=Edwards&rft.aufirst=Pamela&rft.date=2000-01-01&rft.volume=00-1&rft.issue=&rft.spage=203&rft.isbn=1882132505&rft.btitle=&rft.title=Technical+Publication+Series+-+American+Water+Resources+Association&rft.issn=07319789&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AWRA's 2000 spring specialty conference; Water resources in extreme environments N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 7 N1 - PubXState - MD N1 - Document feature - 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Alaska; chemical analysis; Denali National Park; environmental analysis; fluvial environment; geochemistry; glacial features; hydrochemistry; hydrology; pH; preservation; rivers and streams; sediment transport; sediments; stream sediments; surface water; turbidity; United States; water quality ER - TY - JOUR T1 - The use of GPS and GIS in documenting subsidence impacts from longwall mining AN - 50317162; 2001-002692 AB - The localized effect underground longwall mining has on surface water flow was evaluated using a combination of data gathering and displaying tools, specifically Global Positioning System (GPS) and Geographic Information System (GIS) applications. GPS was used to locate monitoring points in streams and springs and to attach site specific attributes to each location. GIS was used to combine and display the data with various surface and mine maps. Applying GPS to the study of mine subsidence allows collection of large amounts of data in the field that can be combined and collectively presented in a GIS format. The ten-month study included studying a perennial stream, its tributary and seven springs above two longwall panels. The results of the study showed that, directly after mining, flow in the stream tributary was significantly reduced (95%) with a return to near-normal flow within two months after mining. Also, the study on the effect longwall mining had on springs showed that springs located along hilltop ridges would be most susceptible to a lowering of the ground water table. New springs were formed during the study at elevations less than 10 feet above the stream elevation. One interesting observation was that a spring actually showed a temporary increase in flow prior to mining. This may be attributed to the advancing subsidence wave causing tensional fractures in front of the mining face. JF - Proceedings of the Annual National Meeting - American Society for Surface Mining and Reclamation AU - Uranowski, Lois AU - Mastrorocco, Thomas A2 - Daniels, W. Lee A2 - Richardson, Steven G. Y1 - 2000 PY - 2000 DA - 2000 SP - 340 EP - 344 PB - American Society for Surface Mining and Reclamation, [location varies] VL - 17 KW - United States KW - Deham Run KW - North America KW - mining KW - mines KW - Global Positioning System KW - monitoring KW - geologic hazards KW - underground mining KW - surface water KW - Appalachians KW - land subsidence KW - coal seams KW - longwall mining KW - geographic information systems KW - streamflow KW - springs KW - information systems KW - Pennsylvania KW - discharge KW - western Pennsylvania KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50317162?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Annual+National+Meeting+-+American+Society+for+Surface+Mining+and+Reclamation&rft.atitle=The+use+of+GPS+and+GIS+in+documenting+subsidence+impacts+from+longwall+mining&rft.au=Uranowski%2C+Lois%3BMastrorocco%2C+Thomas&rft.aulast=Uranowski&rft.aufirst=Lois&rft.date=2000-01-01&rft.volume=17&rft.issue=&rft.spage=340&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Annual+National+Meeting+-+American+Society+for+Surface+Mining+and+Reclamation&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seventeenth annual meeting of the American Society for Surface Mining and Reclamation N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 7 N1 - Document feature - 2 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - #03219 N1 - SubjectsTermNotLitGenreText - Appalachians; coal seams; Deham Run; discharge; geographic information systems; geologic hazards; Global Positioning System; information systems; land subsidence; longwall mining; mines; mining; monitoring; North America; Pennsylvania; springs; streamflow; surface water; underground mining; United States; western Pennsylvania ER - TY - JOUR T1 - Paleofloods and Paleosols on the North Platte River; stratigraphic records of exceedance and nonexceedance AN - 50299115; 2004-018413 AB - The stratigraphy in terraces of the North Platte River near Glendo, Wyoming records evidence of paleofloods and nonexceedance of paleostage over thousands of years. Stratigraphy, radiocarbon ages, and hydraulic modeling indicate that there have been five paleofloods over the past 1,400 years with peak discharges of approximately 1,000-1,300 cms. Flood stratigraphy at the 1,400-year old terrace consists of multiple buried soils with A and Bk horizons of varying thicknesses. The largest historical flood deposit is inset 0.5 meters below the top of the 1,400 year old terrace and is preserved as flotsam overlain by interbedded sand and silt. This deposit most likely represents the flood of 1908, estimated at approximately 850 cms at Whelan, Nebraska. Several geomorphic surfaces have continuous soil profiles that record stability up to 4,000 years, providing paleostage nonexceedance information. Terrace stratigraphy from these stable sites combined with hydraulic modeling results and flood frequency analysis indicate that peak discharges have not exceeded approximately 2,300 cms during the Holocene. The stratigraphy in North Platte River terraces provides evidence of floods that have exceeded the largest recorded historical peak discharges by a factor of about 1.5 over the past 1,400 years and also indicates through paleostage nonexceedance data an upper limit for peak discharge in the Holocene. This information places strong constraints on low probability peak discharge estimates. JF - Abstracts with Programs - Geological Society of America AU - Klawon, Jeanne E AU - Levish, Daniel R AU - O'Connell, Daniel R H AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 509 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - soil profiles KW - Whelan Nebraska KW - Quaternary KW - geologic hazards KW - Platte County Wyoming KW - paleohydrology KW - North Platte River KW - terraces KW - Holocene KW - models KW - Cenozoic KW - Wyoming KW - floods KW - thickness KW - paleosols KW - paleofloods KW - horizons KW - geomorphology KW - upper Holocene KW - discharge KW - Nebraska KW - Glendo Wyoming KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50299115?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Paleofloods+and+Paleosols+on+the+North+Platte+River%3B+stratigraphic+records+of+exceedance+and+nonexceedance&rft.au=Klawon%2C+Jeanne+E%3BLevish%2C+Daniel+R%3BO%27Connell%2C+Daniel+R+H%3BAnonymous&rft.aulast=Klawon&rft.aufirst=Jeanne&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=509&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Cenozoic; discharge; floods; geologic hazards; geomorphology; Glendo Wyoming; Holocene; horizons; models; Nebraska; North Platte River; paleofloods; paleohydrology; paleosols; Platte County Wyoming; Quaternary; soil profiles; terraces; thickness; United States; upper Holocene; Whelan Nebraska; Wyoming ER - TY - JOUR T1 - Natural and Anthropogenic Influences on the Distribution of the Threatened Neosho Madtom in a Midwestern Warmwater Stream AN - 19922336; 4681658 AB - We attempted to discern the contributions of physical habitat, water chemistry, nutrients, and contaminants from historic lead-zinc mining activities on the riffle-dwelling benthic fish community of the Spring River, a midwestern warmwater stream that originates in Missouri and flows into Kansas and Oklahoma. The Spring River has a fish community that includes the Neosho madtom Noturus placidus, a species federally listed as threatened. Although anthropogenic factors such as contaminants limited populations and densities of fishes, an integrated assessment of natural and anthropogenic factors was necessary to effectively estimate the influence of the latter. Fish populations in the Spring River, especially Neosho madtoms, seem to be limited by the presence of cadmium, lead, and zinc in water and in benthic invertebrate food sources and by physical habitat. The population density and community structure of fish in the Spring River also seem to be related to water chemistry and nutrients. Concurrently, diminished food availability may be limiting fish populations at some sites where Neosho madtoms are not found. Many of the natural factors that may be limiting Neosho madtom and other riffle-dwelling fish populations in the Spring River probably are characteristic of the physiographic region drained by the upper reach and many of the tributaries of the Spring River. Our results indicate that competition between the Neosho madtom and other species within the riffle-dwelling fish community is an unlikely cause of Neosho madtom population limitation in the Spring River. JF - Transactions of the American Fisheries Society AU - Wildhaber, M L AU - Allert, AL AU - Schmitt, C J AU - Tabor, V M AU - Mulhern, D AU - Powell, K L AU - Sowa, S P AD - U.S. Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, Missouri 65201, USA, mark_wildhaber@usgs.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 243 EP - 261 VL - 129 IS - 1 SN - 0002-8487, 0002-8487 KW - Neosho madtom KW - Noturus placidus KW - USA, Kansas KW - USA, Missouri KW - USA, Oklahoma KW - USA, Spring R. KW - rare species KW - Sustainability Science Abstracts; Human Population; Water Resources Abstracts; Pollution Abstracts; Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality KW - Spatial distribution KW - Ecological distribution KW - Population density KW - Pollution effects KW - Food availability KW - Freshwater KW - Streams KW - Environmental factors KW - Lead KW - Human impact KW - Habitats KW - Zinc KW - Cadmium KW - Wildlife Management KW - Rivers KW - Habitat preferences KW - Rare species KW - Ecological Distribution KW - Water Pollution Effects KW - Population Density KW - Nature conservation KW - Fish KW - Human factors KW - Mining KW - Nutrient concentrations KW - M1 200:Human Population-Biosphere Interactions KW - Q5 08523:Conservation, wildlife management and recreation KW - M3 1010:Issues in Sustainable Development KW - P 2000:FRESHWATER POLLUTION KW - Q1 08422:Environmental effects KW - D 04668:Fish KW - SW 3030:Effects of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19922336?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Natural+and+Anthropogenic+Influences+on+the+Distribution+of+the+Threatened+Neosho+Madtom+in+a+Midwestern+Warmwater+Stream&rft.au=Wildhaber%2C+M+L%3BAllert%2C+AL%3BSchmitt%2C+C+J%3BTabor%2C+V+M%3BMulhern%2C+D%3BPowell%2C+K+L%3BSowa%2C+S+P&rft.aulast=Wildhaber&rft.aufirst=M&rft.date=2000-01-01&rft.volume=129&rft.issue=1&rft.spage=243&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-12-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Ecological distribution; Zinc; Population density; Nature conservation; Pollution effects; Food availability; Cadmium; Rare species; Environmental factors; Lead; Rivers; Spatial distribution; Habitat preferences; Mining; Nutrient concentrations; Human impact; Human factors; Habitats; Population Density; Water Pollution Effects; Fish; Streams; Ecological Distribution; Wildlife Management; Freshwater ER - TY - JOUR T1 - Predicting the Physical Effects of Relocating Boston's Sewage Outfall AN - 19423669; 5405624 AB - Boston is scheduled to cease discharge of sewage effluent in Boston Harbor in Spring 2000 and begin discharge at a site 14km offshore in Massachusetts Bay in a water depth of about 30m. The effects of this outfall relocation on effluent dilution, salinity and circulation are predicted with a three-dimensional hydrodynamic model. The simulations predict that the new bay outfall will greatly decrease effluent concentrations in Boston Harbor (relative to the harbour outfall) and will not significantly change mean effluent concentrations over most of Massachusetts Bay. With the harbour outfall, previous observations and these simulations show that effluent concentrations exceed 0.5% throughout the harbour, with a harbour wide average of 1-2%. With the bay outfall, effluent concentrations exceed 0.5% only within a few km of the new outfall, and harbour concentrations drop to 0.1-0.2%, a 10-fold reduction. During unstratified winter conditions, the local increase in effluent concentration at the bay outfall site is predicted to exist throughout the water column. During stratified summer conditions, however, effluent released at the sea bed rises and is trapped beneath the pycnocline. The local increase in effluent concentration is limited to the lower layer, and as a result, surface layer effluent concentrations in the vicinity of the new outfall site are predicted to decrease (relative to the harbour outfall) during the summer. Slight changes are predicted for the salinity and circulation fields. Removing the fresh water associated with the effluent discharge in Boston Harbor is predicted to increase the mean salinity of the harbour by 0.5 and decrease the mean salinity by 0.10-0.15 within 2-3km of the outfall. Relative to the existing mean flow, the buoyant discharge at the new outfall is predicted to generate density-driven mean currents of 2-4cm s-1 that spiral out in a clockwise motion at the surface during winter and at the pycnocline (15-20m depth) during summer. Compensating counterclockwise currents are predicted to spiral in toward the source at the bottom. Because the scale of the residual current structure induced by the new discharge is comparable to or smaller than typical subtidal water parcel excursions, Lagrangian trajectories will not follow the Eulerian residual flow. Thus, mean currents measured from moorings within 5km of the bay outfall site will be more useful for model comparison than to indicate net transport pathways. JF - Estuarine, Coastal and Shelf Science AU - Signell, R P AU - Jenter, H L AU - Blumberg, A F AD - U.S. Geological Survey, 384 Woods Hole Road, Quissett Campus, Woods Hole, MA, 02543-1598, U.S.A., rsignell@crusty.er.usgs.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 59 EP - 72 PB - Academic Press Ltd., 24-28 Oval Rd. London NW1 7DX UK, [mailto:apsubs@acad.com] VL - 50 IS - 1 SN - 0272-7714, 0272-7714 KW - Relocation of outfall KW - Pollution Abstracts; Water Resources Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Oceanic Abstracts KW - Ocean dumping KW - Coastal engineering KW - Effluent disposal KW - Hydrodynamics KW - Pollution dispersion KW - Sewages KW - USA, Massachusetts, Boston Harbor KW - ANW, USA, Massachusetts, Boston Harbor KW - Dilution KW - Sewage disposal KW - Salinity KW - Pollutants KW - Receiving Waters KW - Outfall KW - Bays KW - USA, Massachusetts KW - Physicochemical properties KW - Flow Discharge KW - Effluents KW - USA, Massachusetts, Massachusetts Bay KW - Harbours KW - Moratoria KW - Fate KW - Model Studies KW - Outfalls KW - Currents KW - ANW, USA, Massachusetts, Massachusetts Bay KW - Coastal oceanography KW - Effluent KW - Wastewater Disposal KW - Harbors KW - USA, Massachusetts Bay KW - Wastewater KW - Pollution control KW - P 3000:SEWAGE & WASTEWATER TREATMENT KW - SW 3050:Ultimate disposal of wastes KW - P 1000:MARINE POLLUTION KW - AQ 00005:Underground Services and Water Use KW - Q5 08505:Prevention and control KW - O 4060:Pollution - Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19423669?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Estuarine%2C+Coastal+and+Shelf+Science&rft.atitle=Predicting+the+Physical+Effects+of+Relocating+Boston%27s+Sewage+Outfall&rft.au=Signell%2C+R+P%3BJenter%2C+H+L%3BBlumberg%2C+A+F&rft.aulast=Signell&rft.aufirst=R&rft.date=2000-01-01&rft.volume=50&rft.issue=1&rft.spage=59&rft.isbn=&rft.btitle=&rft.title=Estuarine%2C+Coastal+and+Shelf+Science&rft.issn=02727714&rft_id=info:doi/10.1006%2Fecss.1999.0532 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Ocean dumping; Outfalls; Salinity; Coastal engineering; Pollutants; Pollution dispersion; Coastal oceanography; Moratoria; Fate; Dilution; Pollution control; Sewage disposal; Currents; Hydrodynamics; Effluent disposal; Physicochemical properties; Harbors; Bays; Effluent; Sewages; Harbours; Receiving Waters; Flow Discharge; Wastewater Disposal; Effluents; Outfall; Wastewater; Model Studies; USA, Massachusetts; ANW, USA, Massachusetts, Massachusetts Bay; USA, Massachusetts, Boston Harbor; USA, Massachusetts, Massachusetts Bay; USA, Massachusetts Bay; ANW, USA, Massachusetts, Boston Harbor DO - http://dx.doi.org/10.1006/ecss.1999.0532 ER - TY - JOUR T1 - Use of isotopically labeled fertilizer to trace nitrogen fertilizer contributions to surface, soil, and ground water AN - 18331816; 5390820 AB - The fate and transport of a single N fertilizer application through plants, soil runoff, and the unsaturated and saturated zones was determined for four years at a field site under continuous corn (Zea mays L.) management. Claypan soils, which underlie the site, were hypothesized to restrict the movement of agrichemicals from the soil surface to ground water. However, N fertilizer moved rapidly through preferential flow paths in the soil and into the underlying glacial till aquifer. Most N transport occurred during the fall and winter when crops were not available to use excess N. Forty months after application, 33 percent of the fertilizer had been removed by grain harvests, 30 percent had been transpired to the atmosphere, and 33 percent had migrated to ground water. Although runoff volumes were 50 percent greater than infiltration, less than 2 percent of the fertilizer was lost to runoff. Small measured denitrification rates and large measured dissolved oxygen concentrations in ground water favor the long-term stability of NO sub(3) super(-1) in ground water. Successive fertilizer applications, in areas that lack the ability to moderate N concentrations through consumptive N reactions, risk the potential of N-saturated ecosystems. JF - Journal of Environmental Hydrology AU - Wilkison, D H AU - Blevins, D W AU - Silva AD - U.S. Geological Survey, 301 W. Lexington, Independence, MO 64050, USA, wilkison@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 VL - 8 SN - 1058-3912, 1058-3912 KW - Water Resources Abstracts KW - Tracers KW - Fertilizers KW - Agricultural Chemicals KW - Path of Pollutants KW - Fate of Pollutants KW - Corn KW - Farming KW - Nitrogen KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18331816?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Hydrology&rft.atitle=Use+of+isotopically+labeled+fertilizer+to+trace+nitrogen+fertilizer+contributions+to+surface%2C+soil%2C+and+ground+water&rft.au=Wilkison%2C+D+H%3BBlevins%2C+D+W%3BSilva&rft.aulast=Wilkison&rft.aufirst=D&rft.date=2000-01-01&rft.volume=8&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Hydrology&rft.issn=10583912&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Tracers; Fertilizers; Agricultural Chemicals; Path of Pollutants; Fate of Pollutants; Corn; Farming; Nitrogen ER - TY - JOUR T1 - Use of field-applied quality control samples to monitor performance of a Goulden large-sample extractor/GC-MS method for pesticides in water AN - 18161654; 4855759 AB - Since 1985, the Goulden large-sample extractor (GLSE) has been used to isolate a broad array of trace-organic contaminants from large volumes of water. In this study, field-applied quality control measures, including matrix and surrogate spikes and blanks, were used to monitor method performance from GLSE extraction through GC-MS analysis. The method was applied to the determination of multiple classes of pesticides isolated from 4- to 112-L filtered surface-water samples. Average recoveries of six surrogate compounds ranged from 84 plus or minus 18% for [ super(2)H sub(10)]diazinon to 15 plus or minus 13% for 4,4'-[ super(2)H sub(8)]DDT, the low recoveries for which were largely a result of unmonitored breakdown of this surrogate by the GC infection system. Field-matrix-spike samples were prepared by fortifying 10-L, 35-L, and 110-L filtered surface-water samples with 68 pesticides to amended concentrations of 11- to 50-ng/L each. Recoveries ranged from not detected to greater than 100%. Variability in pesticide recoveries from triplicate 10-L water samples collected at one site averaged 5.7% relative standard deviation and did not exceed 19%. JF - International Journal of Environmental Analytical Chemistry AU - Foreman, W T AU - Gates, P M AU - Foster, G D AU - Rinella, F A AU - McKenzie, S W AD - U.S. Geological Survey, Methods Research and Development Program, National Water Quality Laboratory, MS 407, Box 25046, Denver, Colorado 80225-0046, USA, wforeman@usgs.gov Y1 - 2000///0, PY - 2000 DA - 0, 2000 SP - 39 EP - 62 VL - 77 IS - 1 SN - 0306-7319, 0306-7319 KW - Water Resources Abstracts; Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Mass Spectrometry KW - Water sampling KW - Surface water KW - Chromatographic techniques KW - Chemical Analysis KW - Field Tests KW - Freshwater KW - Gas Chromatography KW - Water analysis KW - Gas chromatography KW - Quality Control KW - Pollutant Identification KW - Pollution detection KW - Pollutant identification KW - Performance Evaluation KW - Analytical Methods KW - Quality control KW - Pesticides KW - Analytical techniques KW - Spectroscopic techniques KW - Chemical analysis KW - Sampling methods KW - SW 3010:Identification of pollutants KW - P 2000:FRESHWATER POLLUTION KW - Q5 08502:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18161654?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Environmental+Analytical+Chemistry&rft.atitle=Use+of+field-applied+quality+control+samples+to+monitor+performance+of+a+Goulden+large-sample+extractor%2FGC-MS+method+for+pesticides+in+water&rft.au=Foreman%2C+W+T%3BGates%2C+P+M%3BFoster%2C+G+D%3BRinella%2C+F+A%3BMcKenzie%2C+S+W&rft.aulast=Foreman&rft.aufirst=W&rft.date=2000-01-01&rft.volume=77&rft.issue=1&rft.spage=39&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Environmental+Analytical+Chemistry&rft.issn=03067319&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Pollution detection; Water sampling; Chromatographic techniques; Analytical techniques; Pesticides; Spectroscopic techniques; Pollutant identification; Chemical analysis; Water analysis; Surface water; Gas chromatography; Quality control; Sampling methods; Pollutant Identification; Mass Spectrometry; Performance Evaluation; Analytical Methods; Chemical Analysis; Field Tests; Gas Chromatography; Quality Control; Freshwater ER - TY - JOUR T1 - Economic Development and Conservation of Biological and Cultural Diversity in Yunnan Province, China AN - 18089561; 5175405 AB - Chinese and American scientists are co-operating to develop concepts, strategies, agreements, and proposals in support of an economic development and sustainable ecosystems project in Yunnan Province, People's Republic of China. Yunnan's Provincial Government has initiated a major programme to develop and further utilise its biological resources to help improve economic conditions for its citizens. They are co-operating with the US Geological Survey (USGS) on evaluation and management of biological resources so economic development will be compatible with sustainable ecological systems. Scientists from the USGS and co-operating universities will provide expertise on synthesising biological data, conducting a Gap Analysis for the Province, evaluating innovative economic opportunities, and designing an effective education, training, and outreach programme. JF - Environment, Development and Sustainability AU - Stendell, R C AU - Johnson, R L AU - Mosesso, J P AU - Zhang, X AD - US Geological Survey, Midcontinent Ecological Science Center, Fort Collins, CO 80525, USA, rey_stendell@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 333 EP - 345 VL - 2 IS - 3-4 SN - 1387-585X, 1387-585X KW - Pollution Abstracts KW - Environmental economics KW - Government programs KW - International cooperation KW - Biological diversity KW - Sustainable development KW - China, People's Rep., Yunnan Prov. KW - Education KW - Conservation KW - P 9000:ENVIRONMENTAL ACTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18089561?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environment%2C+Development+and+Sustainability&rft.atitle=Economic+Development+and+Conservation+of+Biological+and+Cultural+Diversity+in+Yunnan+Province%2C+China&rft.au=Stendell%2C+R+C%3BJohnson%2C+R+L%3BMosesso%2C+J+P%3BZhang%2C+X&rft.aulast=Stendell&rft.aufirst=R&rft.date=2000-01-01&rft.volume=2&rft.issue=3-4&rft.spage=333&rft.isbn=&rft.btitle=&rft.title=Environment%2C+Development+and+Sustainability&rft.issn=1387585X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - China, People's Rep., Yunnan Prov.; International cooperation; Sustainable development; Environmental economics; Biological diversity; Conservation; Government programs; Education ER - TY - JOUR T1 - Distribution of metals during digestion by cutthroat trout fed benthic invertebrates contaminated in the Clark Fork River, Montana and the Coeur d'Alene River, Idaho, U.S.A., and fed artificially contaminated Artemia AN - 18081673; 5156593 AB - The concentrations of essential amino acids in three, undigested invertebrate diets collected from the Clark Fork River (CFR) for cutthroat trout were similar to each other, but were c. 25-75% less than Artemia that were exposed to a mixture of arsenic, copper, cadmium, lead and zinc in the laboratory. The Artemia diet appeared less palatable and the texture, quantity and appearance of the intestinal contents differed between fish fed the Artemia and CFR diets. The Pb% in the fluid fraction of the intestinal contents was greater for the Artemia (29%) than for the CFR diets (10-17%), and the Cu% in the amino acid plus metal fraction of the intestinal contents was greater for the Artemia (78%) than for two of the three CFR diets (67% and 70%). Intestinal contents of fish fed invertebrate diets collected from various sites on the Coeur d'Alene River (CDA), Idaho, were similar in texture, quantity, and appearance. For fish fed the CDA diets, differences in the distribution of metals among fractions of the digestive fluids appeared to be related to concentrations of metals in the invertebrate diets. Pb% was lowest of all metals in the fluid portion of the intestinal contents. However, >80% of all metals in the hind gut were associated with the particulate fraction where they may still be available for uptake through pinocytosis. JF - Journal of Fish Biology AU - Farag, A M AU - Suedkamp, MJ AU - Meyer, J S AU - Barrows, R AU - Woodward, D F AD - U.S. Geological Survey, Columbia Environmental Research Center, Jackson Field Station, Jackson, Wyoming, 83001, U.S.A., aida_farag@usgs.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 173 EP - 190 PB - Academic Press VL - 56 IS - 1 SN - 0022-1112, 0022-1112 KW - Cutthroat trout KW - USA, Idaho KW - USA, Montana KW - Pollution Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Water Pollution KW - Food organisms KW - Heavy metals KW - Physiology KW - Amino acid composition KW - Pollution effects KW - USA, Idaho, Coeur d'Alene R. KW - Digestion KW - Intestines KW - Invertebrata KW - Oncorhynchus clarki KW - USA, Montana, Clark Fork R. KW - Body fluids KW - Rivers KW - Diets KW - Fish Physiology KW - Heavy Metals KW - Water pollution KW - Bioaccumulation KW - Trout KW - Artemia KW - Water Pollution Effects KW - Q1 08346:Physiology, biochemistry, biophysics KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution KW - D 04802:Pollution characteristics and fate KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18081673?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Fish+Biology&rft.atitle=Distribution+of+metals+during+digestion+by+cutthroat+trout+fed+benthic+invertebrates+contaminated+in+the+Clark+Fork+River%2C+Montana+and+the+Coeur+d%27Alene+River%2C+Idaho%2C+U.S.A.%2C+and+fed+artificially+contaminated+Artemia&rft.au=Farag%2C+A+M%3BSuedkamp%2C+MJ%3BMeyer%2C+J+S%3BBarrows%2C+R%3BWoodward%2C+D+F&rft.aulast=Farag&rft.aufirst=A&rft.date=2000-01-01&rft.volume=56&rft.issue=1&rft.spage=173&rft.isbn=&rft.btitle=&rft.title=Journal+of+Fish+Biology&rft.issn=00221112&rft_id=info:doi/10.1006%2Fjfbi.1999.1150 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Digestion; Diets; Food organisms; Bioaccumulation; Intestines; Heavy metals; Pollution effects; Body fluids; Rivers; Amino acid composition; Water pollution; Physiology; Water Pollution; Trout; Water Pollution Effects; Heavy Metals; Fish Physiology; Artemia; Oncorhynchus clarki; Invertebrata; USA, Montana, Clark Fork R.; USA, Idaho, Coeur d'Alene R. DO - http://dx.doi.org/10.1006/jfbi.1999.1150 ER - TY - JOUR T1 - Densities of Barrow's Goldeneyes During Winter in Prince William Sound, Alaska in Relation to Habitat, Food and History of Oil Contamination AN - 18070039; 5108581 AB - We evaluated variation in densities of Barrow's Goldeneyes (Bucephala islandica) during winter at 214 sites within oiled and unoiled study areas in Prince William Sound, Alaska in relation to physical habitat attributes, prey biomass, and history of habitat contamination by the 1989 Exxon Valdez oil spill. Using general linear model analyses, we found that goldeneye densities were positively associated with occurrence of a stream within 200 m, lack of exposure to wind and waves, and mixed (versus rocky) substrate. We speculate that these associations relate to habitat profitability via selection of beneficial attributes and avoidance of detrimental features. We also determined that biomass of blue mussels (Mytilus trossulus), the primary prey, was not related to Barrow's Goldeneye densities; we suggest that mussel standing stock exceeds predation demands in our study areas and, thus, does not dictate goldeneye distribution. After accounting for habitat effects, we detected no effect of history of oil contamination on Barrow's Goldeneye densities, suggesting that populations have recovered from the oil spill. Although other studies documented hydrocarbon exposure in Barrow's Goldeneyes through at least 1997, either the level of exposure did not affect populations via reductions in survival, or effects of oil exposure were offset by immigration. JF - Waterbirds AU - Esler, D AU - Bowman, T D AU - O'Clair, CE AU - Dean, T A AU - McDonald, L L AD - U.S. Geological Survey, Alaska Biological Science Center, 1011 E. Tudor Road, Anchorage, AK 99503, USA, daniel_esler@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 423 EP - 429 VL - 23 IS - 3 SN - 0738-6028, 0738-6028 KW - Barrow's goldeneye KW - USA, Alaska KW - Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts KW - Marine KW - Population density KW - Habitat preferences KW - Pollution effects KW - Food availability KW - Winter KW - Bucephala islandica KW - Population structure KW - Oil pollution KW - Mytilus trossulus KW - INE, USA, Alaska, Alaska Gulf, Prince William Sound KW - Oil spills KW - Mortality causes KW - D 04671:Birds KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - Q5 08504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18070039?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Waterbirds&rft.atitle=Densities+of+Barrow%27s+Goldeneyes+During+Winter+in+Prince+William+Sound%2C+Alaska+in+Relation+to+Habitat%2C+Food+and+History+of+Oil+Contamination&rft.au=Esler%2C+D%3BBowman%2C+T+D%3BO%27Clair%2C+CE%3BDean%2C+T+A%3BMcDonald%2C+L+L&rft.aulast=Esler&rft.aufirst=D&rft.date=2000-01-01&rft.volume=23&rft.issue=3&rft.spage=423&rft.isbn=&rft.btitle=&rft.title=Waterbirds&rft.issn=07386028&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Population density; Pollution effects; Food availability; Oil pollution; Population structure; Mortality causes; Habitat preferences; Oil spills; Winter; Bucephala islandica; Mytilus trossulus; INE, USA, Alaska, Alaska Gulf, Prince William Sound; Marine ER - TY - JOUR T1 - Sexing Adult Black-legged Kittiwakes by DNA, Behavior, and Morphology AN - 18069832; 5108579 AB - We sexed adult Black-legged Kittiwakes (Rissa tridactyla) using DNA-based genetic techniques, behavior and morphology and compared results from these techniques. Genetic and morphology data were collected on 605 breeding kittiwakes and sex-specific behaviors were recorded for a sub-sample of 285 of these individuals. We compared sex classification based on both genetic and behavioral techniques for this sub-sample to assess the accuracy of the genetic technique. DNA-based techniques correctly sexed 97.2% and sex-specific behaviors, 96.5% of this sub-sample. We used the corrected genetic classifications from this sub-sample and the genetic classifications for the remaining birds, under the assumption they were correct, to develop predictive morphometric discriminant function models for all 605 birds. These models accurately predicted the sex of 73-96% of individuals examined, depending on the sample of birds used and the characters included. The most accurate single measurement for determining sex was length of head plus bill, which correctly classified 88% of individuals tested. When both members of a pair were measured, classification levels improved and approached the accuracy of both behavioral observations and genetic analyses. Morphometric techniques were only slightly less accurate than genetic techniques but were easier to implement in the field and less costly. Behavioral observations, while highly accurate, required that birds be easily observable during the breeding season and that birds be identifiable. As such, sex-specific behaviors may best be applied as a confirmation of sex for previously marked birds. All three techniques thus have the potential to be highly accurate, and the selection of one or more will depend on the circumstances of any particular field study. JF - Waterbirds AU - Jodice, PGR AU - Lanctot, R B AU - Gill, V A AU - Roby, D D AU - Hatch, SA AD - USGS Oregon Cooperative Fish and Wildlife Research Unit and Department of Fisheries and Wildlife Oregon State University, Corvallis, OR 97331, USA, jodicep@ucs.orst.edu Y1 - 2000 PY - 2000 DA - 2000 SP - 405 EP - 415 VL - 23 IS - 3 SN - 0738-6028, 0738-6028 KW - Black-legged Kittiwake KW - sexing methods KW - Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Animal Behavior Abstracts; Ecology Abstracts KW - Behaviour KW - Adults KW - Sex differences KW - Methodology KW - Sex determination KW - Genetics KW - Animal morphology KW - Behavior KW - Morphometry KW - DNA KW - Rissa tridactyla KW - Sex KW - D 04671:Birds KW - Y 25866:Birds KW - D 04001:Methodology - general KW - Q1 08361:General KW - Y 25506:Birds KW - O 1050:Vertebrates, Urochordates and Cephalochordates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18069832?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Waterbirds&rft.atitle=Sexing+Adult+Black-legged+Kittiwakes+by+DNA%2C+Behavior%2C+and+Morphology&rft.au=Jodice%2C+PGR%3BLanctot%2C+R+B%3BGill%2C+V+A%3BRoby%2C+D+D%3BHatch%2C+SA&rft.aulast=Jodice&rft.aufirst=PGR&rft.date=2000-01-01&rft.volume=23&rft.issue=3&rft.spage=405&rft.isbn=&rft.btitle=&rft.title=Waterbirds&rft.issn=07386028&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Animal morphology; Genetics; Behaviour; DNA; Adults; Sex; Sex determination; Behavior; Morphometry; Sex differences; Methodology; Rissa tridactyla ER - TY - JOUR T1 - Trace elements, organochlorines, polycyclic aromatic hydrocarbons, dioxins, and furans in lesser scaup wintering on the Indiana Harbor Canal AN - 18026805; 4819270 AB - During the winter of 1993-94, male lesser scaup (Aythya affinis) were collected on the heavily polluted Indiana Harbor Canal (IHC), East Chicago, IN, USA, and examined for tissue contaminant levels. Lesser scaup collected on the IHC had higher concentrations of cadmium (Cd), mercury (Hg), selenium (Se), polychlorinated biphenyls (PCBs), selected organchlorine pesticides, polychlorinated dibenzodioxins, polychlorinated dibenzofurans, polycyclic aromatic hydrocarbons, and aliphatic hydrocarbons than reference birds. Of the scaup collected on the IHC, 44% had Cd concentrations in the liver considered above background for freshwater waterfowl (> 3 mu g/g dry wt.), 50% had Se concentrations in the liver above a level possibly harmful to the health of young and adult birds (> 33 mu g/g dry wt.), and 88% of the scaup carcasses exceeded the PCB human consumption guidelines for edible poultry in the USA (> 3.0 mu g/g lipid wt.). The ratio of pristane:n-heptadecane concentrations in 47% of lesser scaup collected on IHC was elevated above 1.0, which is indicative of chronic exposure to petroleum hydrocarbons. JF - Environmental Pollution AU - Custer, T W AU - Custer, C M AU - Hines, R K AU - Sparks, D W AD - US Geological Survey, Biological Resources Division, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI 54603, USA, tom_w_custer@usgs.gov Y1 - 2000///0, PY - 2000 DA - 0, 2000 SP - 469 EP - 482 VL - 110 IS - 3 SN - 0269-7491, 0269-7491 KW - Lesser scaup KW - birds KW - ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Water Resources Abstracts; Toxicology Abstracts KW - Water Pollution KW - Heavy metals KW - Birds (see also Individual groups) KW - Tissues (Biological) KW - Pollution effects KW - Tissue Analysis KW - Selenium KW - Aromatic compounds KW - Cadmium KW - PCB KW - Polycyclic aromatic hydrocarbons KW - Hydrocarbons KW - Overwintering KW - Toxicity KW - Heavy Metals KW - USA, Indiana KW - Aromatic Compounds KW - Bioaccumulation KW - Aythya affinis KW - Liver KW - Mercury KW - Organic Compounds KW - Birds KW - Organic compounds KW - Hydrocarbon KW - Toxicity (see also Lethal limits) KW - Pollution (Water) KW - Aquatic birds KW - Petroleum hydrocarbons KW - X 24190:Polycyclic hydrocarbons KW - Q5 08504:Effects on organisms KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18026805?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Pollution&rft.atitle=Trace+elements%2C+organochlorines%2C+polycyclic+aromatic+hydrocarbons%2C+dioxins%2C+and+furans+in+lesser+scaup+wintering+on+the+Indiana+Harbor+Canal&rft.au=Custer%2C+T+W%3BCuster%2C+C+M%3BHines%2C+R+K%3BSparks%2C+D+W&rft.aulast=Custer&rft.aufirst=T&rft.date=2000-01-01&rft.volume=110&rft.issue=3&rft.spage=469&rft.isbn=&rft.btitle=&rft.title=Environmental+Pollution&rft.issn=02697491&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Bioaccumulation; Heavy metals; Overwintering; Pollution effects; Aquatic birds; Petroleum hydrocarbons; Selenium; Polycyclic aromatic hydrocarbons; Liver; Mercury; Cadmium; PCB; Aromatic compounds; Birds (see also Individual groups); Tissues (Biological); Hydrocarbon; Organic compounds; Toxicity (see also Lethal limits); Pollution (Water); Aromatic Compounds; Water Pollution; Hydrocarbons; Toxicity; Birds; Organic Compounds; Tissue Analysis; Heavy Metals; Aythya affinis; USA, Indiana ER - TY - JOUR T1 - Lipid Concentrations in Lake Michigan Fishes: Seasonal, Spatial, Ontogenetic, and Long-Term Trends AN - 18017107; 4827300 AB - Lipid concentrations were measured in seven species of fish from several locations in Lake Michigan during spring, summer, and fall in 1994 to 1995. Adult alewife (Alosa pseudoharengus) and age-2 coho salmon (Oncorhynchus kisutch) exhibited pronounced seasonal changes in lipid content. Adult alewives averaged 7.4% lipid, on a wet weight basis, during spring (May), 2.6% in summer (July), and 12.2% in fall (late September through October). Spring lipid concentration was low in age-2 coho salmon, averaging only 1.9%, then increased to 7.8% during summer and decreased to 4.5% by fall. In contrast, lipid content in adult bloater (Coregonus hoyi) was relatively constant with respect to season, ranging between 10.6% and 12.4% during the year. Lipid concentration increased with fish size for all species except rainbow smelt (Osmerus mordax). Although deepwater sculpin (Myoxocephalus thompsoni) were considerably larger than slimy sculpin (Cottus cognatus) (mean total length of 117 mm vs 68 mm), mean lipid content of deepwater sculpin (7.6%) was only slightly higher than that for slimy sculpin (6.6%). Comparison of lipid concentrations from this study with previous studies indicated that lipid concentration in lake trout (Salvelinus namaycush) and alewives in Lake Michigan did not change significantly from 1969-1971 to 1994-1995. Lipid concentration in large (about 250 mm total length) adult bloaters near Saugatuck (along the southeastern shore of the lake) decreased from 23.3% in 1980 to 11.9% in 1986, but showed no significant change between 1986 and 1994-1995. JF - Journal of Great Lakes Research AU - Madenjian, C P AU - Elliott, R F AU - DeSorcie, T J AU - Stedman, R M AU - O'Connor, D V AU - Rottiers, D V AD - U. S. Geological Survey, Great Lakes Science Center, 1451 Green Road, Ann Arbor, Michigan 48105, USA, chuck_madenjian@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 427 EP - 444 VL - 26 IS - 4 SN - 0380-1330, 0380-1330 KW - Alewife KW - Bloater KW - Coho salmon KW - Rainbow smelt KW - USA, Michigan L. KW - seasonal variations KW - ASFA 1: Biological Sciences & Living Resources; Water Resources Abstracts KW - Bacteria KW - Seasonal Variations KW - Sculpin KW - Myoxocephalus thompsoni KW - Lipids KW - Deep Water KW - Freshwater KW - Spatial Distribution KW - Coregonus hoyi KW - Biochemical composition KW - Lakes KW - Alosa pseudoharengus KW - Osmerus mordax KW - Trout KW - North America, Michigan L. KW - Body size KW - Ontogeny KW - Fish Populations KW - Oncorhynchus kisutch KW - Q1 08346:Physiology, biochemistry, biophysics KW - SW 0850:Lakes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18017107?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Great+Lakes+Research&rft.atitle=Lipid+Concentrations+in+Lake+Michigan+Fishes%3A+Seasonal%2C+Spatial%2C+Ontogenetic%2C+and+Long-Term+Trends&rft.au=Madenjian%2C+C+P%3BElliott%2C+R+F%3BDeSorcie%2C+T+J%3BStedman%2C+R+M%3BO%27Connor%2C+D+V%3BRottiers%2C+D+V&rft.aulast=Madenjian&rft.aufirst=C&rft.date=2000-01-01&rft.volume=26&rft.issue=4&rft.spage=427&rft.isbn=&rft.btitle=&rft.title=Journal+of+Great+Lakes+Research&rft.issn=03801330&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Biochemical composition; Lipids; Body size; Ontogeny; Bacteria; Sculpin; Seasonal Variations; Lakes; Trout; Deep Water; Fish Populations; Spatial Distribution; Coregonus hoyi; Alosa pseudoharengus; Osmerus mordax; Myoxocephalus thompsoni; Oncorhynchus kisutch; North America, Michigan L.; Freshwater ER - TY - JOUR T1 - Mapping forest canopy gaps using air-photo interpretation and ground surveys AN - 17873050; 5117632 AB - Canopy gaps are important structural components of forested habitats for many wildlife species. Recent improvements in the spatial accuracy of geographic information system tools facilitate accurate mapping of small canopy features such as gaps. We compared canopy-gap maps generated using ground survey methods with those derived from air-photo interpretation. We found that maps created from high-resolution air photos were more accurate than those created from ground surveys. Errors of omission were 25.6% for the ground-survey method and 4.7% for the air-photo method. One variable of interest in songbird research is the distance from nests to gap edges. Distances from real and simulated nests to gap edges were longer using the ground-survey maps versus the air-photo maps, indicating that gap omission could potentially bias the assessment of spatial relationships. If research or management goals require location and size of canopy gaps and specific information about vegetation structure, we recommend a 2-fold approach. First, canopy gaps can be located and the perimeters defined using 1:15,000-scale or larger aerial photographs and the methods we describe. Mapped gaps can then be field-surveyed to obtain detailed vegetation data. JF - Wildlife Society Bulletin AU - Fox, T J AU - Knutson, M G AU - Hines, R K AD - United States Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI 54603, USA, melinda_knutson@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 882 EP - 889 VL - 28 IS - 4 SN - 0091-7648, 0091-7648 KW - Ecology Abstracts KW - Gaps KW - Surveys KW - Forests KW - Geographic information systems KW - Aerial photography KW - Canopies KW - Mapping KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17873050?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wildlife+Society+Bulletin&rft.atitle=Mapping+forest+canopy+gaps+using+air-photo+interpretation+and+ground+surveys&rft.au=Fox%2C+T+J%3BKnutson%2C+M+G%3BHines%2C+R+K&rft.aulast=Fox&rft.aufirst=T&rft.date=2000-01-01&rft.volume=28&rft.issue=4&rft.spage=882&rft.isbn=&rft.btitle=&rft.title=Wildlife+Society+Bulletin&rft.issn=00917648&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Mapping; Forests; Canopies; Gaps; Aerial photography; Surveys; Geographic information systems ER - TY - JOUR T1 - Harvest and reporting rates of game-farm ring-necked pheasants AN - 17870327; 5117655 AB - Many state natural resource agencies release ring-necked pheasants (Phasianus colchicus) for hunting, but the effectiveness of these programs has never been evaluated on a statewide basis. We conducted a reward-band study to estimate harvest, reporting, and survival rates of pheasants raised and released by the Pennsylvania Game Commission (PGC) for the fall 1998 hunting season. We banded 6,770 of 199,613 released pheasants with leg bands worth $0-$400. Rewards >$75 produced 100% reporting rates. Hunters reported 71.0% of harvested pheasants banded with standard bands (no reward). Cocks had an estimated 62.3% harvest rate when released on public land and a 46.8% harvest rate on private land. Hens had an estimated 50.4% harvest rate when released on public land and a 31.1% harvest rate on private land. Estimated harvest rate for hen pheasants released in September in the either-sex zone was 15.5%. In the late season, pheasants released on public land had a 33.6% harvest rate and a 23.5% harvest rate on private land. We found that few pheasants (30 days and birds released on public land had reduced survival rates primarily because of greater harvest rates. In fiscal year 1998-99, the net cost to raise and release 199,613 pheasants was $2,813,138 ($14.09 per bird). The average cost per harvested pheasant was $29.10, but ranged from $22.63 to $90.74 depending on the date and location of release. We estimated that 49.9% (82,017 birds) of pheasants stocked immediately prior to and during the regular and late seasons (excluding September releases of hens) were harvested by hunters. Percentage of pheasants harvested by hunters could be increased by expanding the either-sex zone in Pennsylvania so that more hens could be legally killed by hunters and by allocating releases to seasons and locations with greater harvest rates. However, before such changes are implemented, we recommend a survey of Pennsylvania pheasant hunters to ascertain their opinions and desires regarding releases of game-farm pheasants. JF - Wildlife Society Bulletin AU - Diefenbach AU - Riegner, C F AU - Hardisky, T S AD - United States Geological Survey, Biological Resources Division, Pennsylvania Cooperative Fish and Wildlife Research Unit, 113 Merkle Bldg., Pennsylvania State University, University Park, PA 16802, USA, drd11@psu.edu Y1 - 2000 PY - 2000 DA - 2000 SP - 1050 EP - 1059 VL - 28 IS - 4 SN - 0091-7648, 0091-7648 KW - Ring-necked pheasant KW - USA, Pennsylvania KW - Ecology Abstracts KW - Phasianus colchicus KW - Game management KW - Hunting KW - D 04700:Management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17870327?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wildlife+Society+Bulletin&rft.atitle=Harvest+and+reporting+rates+of+game-farm+ring-necked+pheasants&rft.au=Diefenbach%3BRiegner%2C+C+F%3BHardisky%2C+T+S&rft.aulast=Diefenbach&rft.aufirst=&rft.date=2000-01-01&rft.volume=28&rft.issue=4&rft.spage=1050&rft.isbn=&rft.btitle=&rft.title=Wildlife+Society+Bulletin&rft.issn=00917648&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Phasianus colchicus; Game management; Hunting ER - TY - JOUR T1 - Controlled Field Study on the Use of Nitrate and Oxygen for Bioremediation of a Gasoline Source Zone AN - 17828421; 4855363 AB - Controlled releases of unleaded gasoline were used to evaluate the biotransformation of the soluble aromatic hydrocarbons (benzene, toluene, ethylbenzene, xylene isomers, trimethylbenzene isomers, and naphthalene) within a source zone using nitrate and oxygen as electron acceptors. Experiments were performed within two 2 m x 2 m x 3.5 m deep sheet-piling cells. A gasoline-contaminated zone was created below the water table in each treatment cell. Groundwater amended with electron acceptors was then flushed continuously through the cells for 174 d. One cell received approximately 100 mg/L nitrate and "microaerophilic" (i.e., 2 mg/L or less) dissolved oxygen (DO), a second cell received microaerophilic DO only. Electron-acceptor utilization and hydrocarbonmetabolite formation were observed in both cells, suggesting that some microbial activity had been induced in response to flushing. However, nitrate utilization was slow relative to the cell residence time, and aromatic-hydrocarbon mass losses in response to microaerophilic DO addition were not apparent under these in situ conditions. Concentration trends in both cells suggested that there was relatively little biotransformation of the aromatic hydrocarbons over the 2-m flow path monitored in this experiment. Extraction-well concentration trends, for example, were consistent with abiotic gasoline dissolution. The results from the nitrate-amended cell suggest that a large denitrifying population capable of aromatic hydrocarbon biotransformation failed to develop within the gasoline source zone over a 14-month period of nitrate exposure. This study reinforces the need for detailed aquifer-specific testing prior to selecting bioremediation for full-scale cleanup, particularly for recent hydrocarbon spills. JF - Bioremediation Journal AU - Barbaro, J R AU - Barker, J F AD - U.S. Geological Survey, 1289 McD Drive., Dover, DE, 19901, USA, jrbarbar@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 259 EP - 270 VL - 4 IS - 4 SN - 1088-9868, 1088-9868 KW - Pollution Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Nitrate KW - Bioremediation KW - Nitrates KW - Hydrocarbons KW - Gasoline KW - Oxygen KW - Denitrification KW - Aromatic hydrocarbons KW - Groundwater pollution KW - A 01063:Utilization KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17828421?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioremediation+Journal&rft.atitle=Controlled+Field+Study+on+the+Use+of+Nitrate+and+Oxygen+for+Bioremediation+of+a+Gasoline+Source+Zone&rft.au=Barbaro%2C+J+R%3BBarker%2C+J+F&rft.aulast=Barbaro&rft.aufirst=J&rft.date=2000-01-01&rft.volume=4&rft.issue=4&rft.spage=259&rft.isbn=&rft.btitle=&rft.title=Bioremediation+Journal&rft.issn=10889868&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Gasoline; Bioremediation; Groundwater pollution; Hydrocarbons; Oxygen; Nitrates; Nitrate; Aromatic hydrocarbons; Denitrification ER - TY - JOUR T1 - Effects of water conditions on clutch size, egg volume, and hatchling mass of mallards and gadwalls in the Prairie Pothole Region AN - 17808419; 4853693 AB - We examined the relationship between local water conditions (measured as the percent of total area of basins covered by water) and clutch size, egg volume, and hatchling mass of Mallards (Anas platyrhynchos) and Gadwalls (A. strepera) on four study sites in the Prairie Pothole Region of North Dakota and Minnesota, 1988-1994. We also examined the relationship between pond density and clutch size of Mallards and Gadwalls, using data collected at another North Dakota site, 1966-1981. For Mallards, we found no relationships to be significant. For Gadwalls, clutch size increased with percent basin area wet and pond density; hatchling mass marginally increased with percent basin area wet. These species differences may reflect, in part, that Mallards acquire lipid reserves used to produce early clutches before they reach the breeding grounds, whereas Gadwalls acquire lipid reserves locally; thus Gadwall clutches are more likely to be influenced by local food resources. JF - Condor AU - Pietz, P J AU - Krapu, G L AU - Buhl, DA AU - Brandt, DA AD - U.S. Geological Survey, Northern Prairie Wildlife Research Center, 8711 37th Street S.E., Jamestown, ND 58401, USA, pam_pietz@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 936 EP - 940 VL - 102 IS - 4 SN - 0010-5422, 0010-5422 KW - Gadwall KW - Mallard KW - USA, Minnesota KW - USA, North Dakota KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Anas platyrhynchos KW - clutch size KW - Body weight KW - Clutch KW - Volume KW - Body size KW - Anas strepera KW - Water quality KW - Eggs KW - Water KW - Bird eggs KW - D 04671:Birds KW - Q1 08364:Reproduction and development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17808419?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Condor&rft.atitle=Effects+of+water+conditions+on+clutch+size%2C+egg+volume%2C+and+hatchling+mass+of+mallards+and+gadwalls+in+the+Prairie+Pothole+Region&rft.au=Pietz%2C+P+J%3BKrapu%2C+G+L%3BBuhl%2C+DA%3BBrandt%2C+DA&rft.aulast=Pietz&rft.aufirst=P&rft.date=2000-01-01&rft.volume=102&rft.issue=4&rft.spage=936&rft.isbn=&rft.btitle=&rft.title=Condor&rft.issn=00105422&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Clutch; Volume; Body size; Water quality; Bird eggs; clutch size; Body weight; Water; Eggs; Anas platyrhynchos; Anas strepera ER - TY - JOUR T1 - Correlates of harlequin duck densities during winter in Prince William Sound, Alaska AN - 17807046; 4853690 AB - We evaluated relationships of Harlequin Duck (Histrionicus histrionicus) densities to habitat attributes, history of habitat contamination by the 1989 Exxon Valdez oil spill, and prey biomass density and abundance during winters 1995-1997 in Prince William Sound, Alaska. Habitat features that explained variation in duck densities included distance to streams and reefs, degree of exposure to wind and wave action, and dominant substrate type. After accounting for these effects, densities were lower in oiled than unoiled areas, suggesting that population recovery from the oil spill was not complete, due either to lack of recovery from initial oil spill effects or continuing deleterious effects. Prey biomass density and abundance were not strongly related to duck densities after accounting for habitat and area effects. Traits of Harlequin Ducks that reflect their affiliation with naturally predictable winter habitats, such as strong site fidelity and intolerance of increased energy costs, may make their populations particularly vulnerable to chronic oil spill effects and slow to recover from population reductions, which may explain lower densities than expected on oiled areas nearly a decade following the oil spill. JF - Condor AU - Esler, D AU - Bowman, T D AU - Dean, T A AU - O'Clair, CE AU - Jewett, S C AU - McDonald, L L AD - U.S. Geological Survey, Alaska Biological Science Center, 1011 E. Tudor Rd., Anchorage, AK 99503, USA, daniel_esler@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 920 EP - 926 VL - 102 IS - 4 SN - 0010-5422, 0010-5422 KW - Harlequin duck KW - Histrionicus histrionicus KW - USA, Alaska KW - USA, Alaska, Prince William Sound KW - population density KW - Ecology Abstracts; Pollution Abstracts KW - Diets KW - Population density KW - Pollution effects KW - Seasonal variations KW - Oil spills KW - D 04803:Pollution effects KW - P 1000:MARINE POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17807046?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Condor&rft.atitle=Correlates+of+harlequin+duck+densities+during+winter+in+Prince+William+Sound%2C+Alaska&rft.au=Esler%2C+D%3BBowman%2C+T+D%3BDean%2C+T+A%3BO%27Clair%2C+CE%3BJewett%2C+S+C%3BMcDonald%2C+L+L&rft.aulast=Esler&rft.aufirst=D&rft.date=2000-01-01&rft.volume=102&rft.issue=4&rft.spage=920&rft.isbn=&rft.btitle=&rft.title=Condor&rft.issn=00105422&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Histrionicus histrionicus; Seasonal variations; Oil spills; Diets; Pollution effects; Population density ER - TY - JOUR T1 - Simulation of nitrous oxide and nitric oxide emissions from tropical primary forests in the Costa Rican Atlantic Zone AN - 17799560; 4845548 AB - Nitrous oxide (N sub(2)O) and nitric oxide (NO) are important atmospheric trace gases participating in the regulation of global climate and environment. Predictive models on the emissions of N sub(2)O and NO emissions from soil into the atmosphere are required. We modified the CENTURY model (Soil Sci. Soc. Am. J., 51 (1987) 1173) to simulate the emissions of N sub(2)O and NO from tropical primary forests in the Atlantic Zone of Costa Rica at a monthly time step. Combined fluxes of N sub(2)O and NO were simulated as a function of gross N mineralization and water-filled pore space (WFPS). The coefficients for partitioning N sub(2)O from NO were derived from field measurements (Global Biogeochem. Cycles, 8 (1994) 399). The modified CENTURY was calibrated against observations of carbon stocks in various pools of forest ecosystems of the region, and measured WFPS and emission rates of N sub(2)O and NO from soil to the atmosphere. WFPS is an important factor regulating nutrient cycling and emissions of N2O and NO from soils making the accuracy of the WFPS prediction central to the modeling process. To do this, we modified the hydrologic submodel and developed a new method for the prediction of WFPS at the monthly scale from daily rainfall information. The new method is based on: (1) the relationship between monthly rainfall and the number of rainfall events, and (2) the relative cumulative frequency distribution of ranked daily rainfall events. The method is generic and should be applicable to other areas. JF - Environmental Modelling & Software with Environment Data News AU - Liu, S AU - Reiners, WA AU - Keller, M AU - Schimel, D S AD - Raytheon Systems Company, EROS Data Center, Sioux Falls, SD 57198, USA, sliu@edcmail.cr.usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 727 EP - 743 VL - 15 IS - 8 SN - 1364-8152, 1364-8152 KW - Costa Rica KW - Pollution Abstracts KW - Rainfall KW - Forests KW - Nutrient cycles KW - Government regulations KW - Nitrous oxide KW - Tropical environments KW - Nitric oxide KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17799560?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Modelling+%26+Software+with+Environment+Data+News&rft.atitle=Simulation+of+nitrous+oxide+and+nitric+oxide+emissions+from+tropical+primary+forests+in+the+Costa+Rican+Atlantic+Zone&rft.au=Liu%2C+S%3BReiners%2C+WA%3BKeller%2C+M%3BSchimel%2C+D+S&rft.aulast=Liu&rft.aufirst=S&rft.date=2000-01-01&rft.volume=15&rft.issue=8&rft.spage=727&rft.isbn=&rft.btitle=&rft.title=Environmental+Modelling+%26+Software+with+Environment+Data+News&rft.issn=13648152&rft_id=info:doi/10.1016%2FS1364-8152%2800%2900030-X LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Nitrous oxide; Tropical environments; Rainfall; Nitric oxide; Government regulations; Forests; Nutrient cycles DO - http://dx.doi.org/10.1016/S1364-8152(00)00030-X ER - TY - JOUR T1 - The Cooperative Research Unit Program and wildlife education: historic development, future challenges AN - 17783174; 4823729 AB - In 1932, J. N. "Ding" Darling proposed a 3-year tripartite arrangement between the Iowa Fish and Game Commission, Iowa State University, and himself to establish the first Cooperative Wildlife Research Unit. Three years later, the Cooperative Wildlife Research Unit Program was broadened to include 9 land-grant colleges representing recognized ecoregions in the United States. In 1960, the Units were given statutory recognition by Public Law 86-686 that also included provision for establishing Cooperative Fishery Units. The Cooperative Research Unit idea has evolved to 39 Units in 2000. Today, the main cooperators of the Unit program are the land-grant university, the state fish and game or conservation agency, the U.S. Geological Survey, and the Wildlife Management Institute. The Cooperative Units mission, as stated in Public Law 86-686, remains: "To facilitate cooperation between the Federal Government, colleges and universities, and private organizations for cooperative unit programs of research and education relating to fish and wildlife and for other purposes." Graduate research and education continue to be the program's primary missions. In any given year >600 graduate and post-graduate students are involved. Post-graduate employment of Unit-affiliated students is >90%. Perhaps the primary benefit to the education process is the Units' formal connection to the state cooperator and to their federal agency that might not otherwise be available to university faculty and students. Units are conduits to state and federal funding for research projects conducted by university faculty and students. The CRU program is well positioned to educate a multitalented, ethnically diverse cadre of graduate students who will be prepared not only for their first professional job but also for their career by having been instilled with a desire for life-long professional accomplishment. JF - Wildlife Society Bulletin AU - Bissonette, JA AU - Loftin, C S AU - Leslie, DM Jr AU - Nordstrom, LA AU - Fleming, W J AD - Utah Cooperative Fish and Wildlife Research Unit, USGS, Department of Fisheries and Wildlife, Utah State University, Logan, UT 84322-5290, USA, john.bissonette@cnr.usu.edu Y1 - 2000 PY - 2000 DA - 2000 SP - 534 EP - 541 VL - 28 IS - 3 SN - 0091-7648, 0091-7648 KW - USA KW - Ecology Abstracts KW - Wildlife management KW - Education KW - D 04903:Education UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17783174?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wildlife+Society+Bulletin&rft.atitle=The+Cooperative+Research+Unit+Program+and+wildlife+education%3A+historic+development%2C+future+challenges&rft.au=Bissonette%2C+JA%3BLoftin%2C+C+S%3BLeslie%2C+DM+Jr%3BNordstrom%2C+LA%3BFleming%2C+W+J&rft.aulast=Bissonette&rft.aufirst=JA&rft.date=2000-01-01&rft.volume=28&rft.issue=3&rft.spage=534&rft.isbn=&rft.btitle=&rft.title=Wildlife+Society+Bulletin&rft.issn=00917648&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Education; Wildlife management ER - TY - JOUR T1 - Assessing factors that may predispose Minnesota farms to wolf depredations on cattle AN - 17776375; 4823762 AB - Wolf (Canis lupus) depredations on livestock cause considerable conflict and expense in Minnesota. Furthermore, claims are made that such depredations are fostered by the type of animal husbandry practiced. Thus, we tried to detect factors that might predispose farms in Minnesota to wolf depredations. We compared results of interviews with 41 cattle farmers experiencing chronic cattle losses to wolves (chronic farms) with results from 41 nearby "matched" farms with no wolf losses to determine farm characteristics or husbandry practices that differed and that therefore might have affected wolf depredations. We also used a Geographic Information System (GIS) to detect any habitat differences between the 2 types of farms. We found no differences between chronic and matched farms in the 11 farm characteristics and management practices that we surveyed, except that farms with chronic losses were larger, had more cattle, and had herds farther from human dwellings. Habitat types were the same around farms with and without losses. The role of proper carcass disposal as a possible factor predisposing farms to wolf depredations remains unclear. JF - Wildlife Society Bulletin AU - Mech, L D AU - Harper, E K AU - Meier, T J AU - Paul, W J AD - Biological Resources Division, United States Geological Survey, Northern Prairie Wildlife Research Center, 8711-37th St., S.E., Jamestown, ND 58401, USA, mechx002@tc.umn.edu Y1 - 2000 PY - 2000 DA - 2000 SP - 623 EP - 629 VL - 28 IS - 3 SN - 0091-7648, 0091-7648 KW - Gray wolf KW - USA, Minnesota KW - Ecology Abstracts KW - Farms KW - Predation KW - Canis lupus KW - Livestock KW - D 04700:Management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17776375?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wildlife+Society+Bulletin&rft.atitle=Assessing+factors+that+may+predispose+Minnesota+farms+to+wolf+depredations+on+cattle&rft.au=Mech%2C+L+D%3BHarper%2C+E+K%3BMeier%2C+T+J%3BPaul%2C+W+J&rft.aulast=Mech&rft.aufirst=L&rft.date=2000-01-01&rft.volume=28&rft.issue=3&rft.spage=623&rft.isbn=&rft.btitle=&rft.title=Wildlife+Society+Bulletin&rft.issn=00917648&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Canis lupus; Predation; Livestock; Farms ER - TY - JOUR T1 - Waterfowl research priorities in the northern Great Plains AN - 17776325; 4823732 AB - It is necessary periodically to identify research priorities so that future research will be directed toward the most pertinent issues in waterfowl ecology and management. To that end, Northern Prairie Wildlife Research Center convened a quorum of experts on the ecology of breeding waterfowl, the Waterfowl Working Group, to 1) develop a mission statement, 2) identify waterfowl research priorities in the northern Great Plains, and 3) determine the frequency for re-identifying research needs. Research needs (nonprioritized) identified by the group and described in detail herein included: 1) determine effects of landscape factors on demographics and recruitment of ducks in the Prairie Pothole Region; 2) develop, improve, or update estimates of important parameters used in existing models for management and planning; 3) evaluate waterfowl management activities at broad, regional scales; 4) direct studies at waterfowl species of concern; and 5) evaluate applicability of the bird-conservation-area concept to waterfowl. The Waterfowl Working Group will reconsider research priorities at 2-year intervals. JF - Wildlife Society Bulletin AU - Cox, RR Jr AU - Johnson, D H AU - Johnson, MA AU - Kirby, R E AU - Nelson, J W AU - Reynolds, R E AD - U.S. Geological Survey, Northern Prairie Wildlife Research Center, 8711 37th St. SE, Jamestown, ND 58401, USA, robert_cox@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 558 EP - 564 VL - 28 IS - 3 SN - 0091-7648, 0091-7648 KW - Birds KW - USA KW - ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts KW - Aves KW - Research programmes KW - Resource management KW - Breeding KW - Breeding sites KW - Migratory species KW - Freshwater KW - Population dynamics KW - Research programs KW - Aquatic birds KW - D 04700:Management KW - Q5 08501:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17776325?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wildlife+Society+Bulletin&rft.atitle=Waterfowl+research+priorities+in+the+northern+Great+Plains&rft.au=Cox%2C+RR+Jr%3BJohnson%2C+D+H%3BJohnson%2C+MA%3BKirby%2C+R+E%3BNelson%2C+J+W%3BReynolds%2C+R+E&rft.aulast=Cox&rft.aufirst=RR&rft.date=2000-01-01&rft.volume=28&rft.issue=3&rft.spage=558&rft.isbn=&rft.btitle=&rft.title=Wildlife+Society+Bulletin&rft.issn=00917648&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Research programmes; Resource management; Migratory species; Breeding sites; Population dynamics; Aquatic birds; Breeding; Research programs; Aves; Freshwater ER - TY - JOUR T1 - Relation of grassland bird abundance to mowing of Conservation Reserve Program fields in North Dakota AN - 17774823; 4823766 AB - One factor that may be contributing to declines of several grassland bird species is mowing of grassland fields. We compared the relative abundance of birds in idled and mowed portions of grassland fields to investigate the influence of mowing in the previous summer on the grassland bird community. The study occurred in central North Dakota in 12 reseeded cropland fields enrolled in the Conservation Reserve Program. Sedge wrens (Cistothorus platensis) were more abundant in idled portions of grassland fields, whereas savannah sparrows (Passerculus sandwichensis) were more abundant in portions of fields that were mowed the previous year. Our findings are similar to other studies indicating that several grassland bird species in the central United States and Canada respond consistently to mowing. JF - Wildlife Society Bulletin AU - Horn, D J AU - Koford, R R AD - Iowa Cooperative Fish and Wildlife Research Unit, United States Geological Survey-Biological Resources Division, Science Hall II, Iowa State University, Ames, IA 50011, USA, djhorn@iastate.edu Y1 - 2000 PY - 2000 DA - 2000 SP - 653 EP - 659 VL - 28 IS - 3 SN - 0091-7648, 0091-7648 KW - Sedge wren KW - Savannah sparrow KW - USA, North Dakota KW - Ecology Abstracts KW - Grasslands KW - Conservation KW - Population decline KW - Passerculus sandwichensis KW - Mowing KW - Cistothorus platensis KW - D 04671:Birds KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17774823?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wildlife+Society+Bulletin&rft.atitle=Relation+of+grassland+bird+abundance+to+mowing+of+Conservation+Reserve+Program+fields+in+North+Dakota&rft.au=Horn%2C+D+J%3BKoford%2C+R+R&rft.aulast=Horn&rft.aufirst=D&rft.date=2000-01-01&rft.volume=28&rft.issue=3&rft.spage=653&rft.isbn=&rft.btitle=&rft.title=Wildlife+Society+Bulletin&rft.issn=00917648&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Cistothorus platensis; Passerculus sandwichensis; Grasslands; Mowing; Conservation; Population decline ER - TY - JOUR T1 - Leaf pack breakdown and macroinvertebrate colonization: bioassessment tools for a high-altitude regulated system? AN - 17762912; 4819436 AB - Leaf pack processing and invertebrate colonization for bioassessment of metals pollution in a stream also impacted by a dam were examined. Differences in leaf breakdown rates at sites upstream and downstream of a metals point source were not detected. However, multivariate and logistic regression techniques indicated there were differences in aquatic macroinvertebrate assemblages that colonized leaf packs above and below the metal inflow. Development of a logistic regression model allowed for prediction of leaf pack location from indicator taxa in the leaf pack invertebrate community. Collector-gatherers, rather than shredders, were the most important predictors of whether leaf packs were located above or below the metal inflow, and were perhaps related to algae growing on leaf packs and/or fine particulate organic matter quality. Biotic structure, in this study, provided more information for evaluating pollution impacts than did measurement of leaf breakdown rates. JF - Environmental Pollution AU - Nelson, S M AD - Ecological Research and Investigations Group, Technical Services Center, Bureau of Reclamation, Denver, CO 80225, USA, msnelson@do.usbr.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 321 EP - 329 VL - 110 IS - 2 SN - 0269-7491, 0269-7491 KW - Pollution Abstracts KW - Bioindicators KW - Aquatic organisms KW - Heavy metals KW - Pollution effects KW - Macrofauna KW - Streams KW - Biota KW - Plants KW - Invertebrata KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17762912?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Pollution&rft.atitle=Leaf+pack+breakdown+and+macroinvertebrate+colonization%3A+bioassessment+tools+for+a+high-altitude+regulated+system%3F&rft.au=Nelson%2C+S+M&rft.aulast=Nelson&rft.aufirst=S&rft.date=2000-01-01&rft.volume=110&rft.issue=2&rft.spage=321&rft.isbn=&rft.btitle=&rft.title=Environmental+Pollution&rft.issn=02697491&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Streams; Macrofauna; Invertebrata; Heavy metals; Biota; Pollution effects; Bioindicators; Plants; Aquatic organisms ER - TY - JOUR T1 - Effects of Long-Term Changes in the Benthic Community on Yellow Perch in Saginaw Bay, Lake Huron AN - 17739817; 4804399 AB - Abundance, mortality, age and growth, food habits, and energetics of a yellow perch Perca flavescens population were investigated in eutrophic Saginaw Bay, Lake Huron during May to October, 1986 to 1988, and compared population characteristics with historical data from times when eutrophic conditions were less severe. During 1986 to 1988, yellow perch were abundant, but grew slowly and experienced high natural mortality. A size threshold was present at 150 to 180 mm beyond which few individuals survived, and sex ratios became biased toward males. An energetic model suggested that yellow perch were food limited; as they increased in size they spent a greater proportion of the growing season near maintenance ration. Low feeding rates were a consequence of subsistence on small chironomid larvae. Piscivory provided little energetic relief. Historical data suggested that availability of large benthic prey such as nymphs of the burrowing mayfly Hexagenia was important to yellow perch. Yellow perch formerly consumed Hexagenia, but mayflies were extirpated from Saginaw Bay during 1953 to 1965, and never recovered. When Hexagenia was present, yellow perch growth was moderate to fast depending on population size, size thresholds were not present, and yellow perch reached large size and older age despite moderate to high fishing mortality. Decreases in yellow perch growth rates during 1952 to 1955 coincided with extirpation of Hexagenia. Fast growth of yellow perch did occur after Hexagenia became extirpated, but only when fishing mortality was high, population size was small, and some large benthic invertebrates remained. Eutrophication of Saginaw Bay appeared to affect yellow perch by changing species composition and reducing size structure of the benthic community. JF - Journal of Great Lakes Research AU - Schaeffer, J S AU - Diana, J S AU - Haas, R C AD - Great Lakes Science Center, 1451 Green Road, Ann Arbor, MI 48105, USA, jeff_schaeffer@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 340 EP - 351 VL - 26 IS - 3 SN - 0380-1330, 0380-1330 KW - Ephemeroptera KW - Mayflies KW - North America, Great Lakes KW - USA KW - USA, Michigan KW - USA, Michigan, Huron L. KW - USA, Michigan, Saginaw Bay KW - Yellow perch KW - nymphs KW - population declines KW - Entomology Abstracts; Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Historical account KW - Food organisms KW - Eutrophication KW - Perca flavescens KW - Predation KW - Eutrophic lakes KW - Population density KW - Pollution effects KW - Food availability KW - Benthic environment KW - Hexagenia KW - Perch KW - Lakes KW - Ephemeridae KW - Fishing mortality KW - Food webs KW - Bays KW - Growth rate KW - Mortality KW - Natural mortality KW - Growth Rates KW - Limiting factors KW - Eutrophic Lakes KW - Foods KW - Community composition KW - Community structure KW - Long-term changes KW - Limiting Factors KW - Population structure KW - Zoobenthos KW - Benthos KW - Q1 08483:Species interactions: general KW - SW 0850:Lakes KW - Z 05210:Aquatic entomology KW - D 04668:Fish KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17739817?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Great+Lakes+Research&rft.atitle=Effects+of+Long-Term+Changes+in+the+Benthic+Community+on+Yellow+Perch+in+Saginaw+Bay%2C+Lake+Huron&rft.au=Schaeffer%2C+J+S%3BDiana%2C+J+S%3BHaas%2C+R+C&rft.aulast=Schaeffer&rft.aufirst=J&rft.date=2000-01-01&rft.volume=26&rft.issue=3&rft.spage=340&rft.isbn=&rft.btitle=&rft.title=Journal+of+Great+Lakes+Research&rft.issn=03801330&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Growth rate; Food organisms; Historical account; Eutrophic lakes; Population density; Pollution effects; Natural mortality; Food availability; Limiting factors; Community composition; Long-term changes; Population structure; Fishing mortality; Zoobenthos; Food webs; Lakes; Eutrophication; Community structure; Predation; Benthic environment; Mortality; Foods; Perch; Limiting Factors; Growth Rates; Bays; Eutrophic Lakes; Benthos; Ephemeroptera; Ephemeridae; Perca flavescens; Hexagenia ER - TY - JOUR T1 - Lead shot toxicity to passerines AN - 17734384; 4787126 AB - This study evaluated the toxicity of a single size 7.5 lead shot to passerines. No mortalities or signs of plumbism were observed in dosed cowbirds (Molothrus ater) fed a commercial diet, but when given a more natural diet, three of 10 dosed birds died within 1 day. For all survivors from which shot were recovered, all but one excreted the shot within 24 h of dosing, whereas, the dead birds retained their shot. Shot erosion was significantly greater (P < 0.05) when weathered shot were ingested compared to new shot, and the greatest erosion was observed in those birds that died (2.2-9.7%). Blood lead concentrations of birds dosed with new shot were not significantly different (P = 0.14) from those of birds exposed to weathered shot. Liver lead concentrations of birds that died ranged from 71 to 137 ppm, dry weight. Despite the short amount of time the shot was retained, songbirds may absorb sufficient lead to compromise their survival. JF - Environmental Pollution AU - Vyas, N B AU - Spann, J W AU - Heinz, G H AD - US Geological Survey, Biological Resources Division, Patuxent Wildlife Research Center, 11510 American Holly Drive, Laurel, MD 20708, USA, nimish_vyas@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 135 EP - 138 VL - 111 IS - 1 SN - 0269-7491, 0269-7491 KW - passerines KW - Brown-headed cowbird KW - Perching birds KW - Molothrus ater KW - ammunition KW - lead shot KW - Toxicology Abstracts; Pollution Abstracts KW - Lead KW - Shotgun pellets KW - Absorption KW - Diets KW - Mortality KW - Ingestion KW - Passeriformes KW - Blood levels KW - Aves KW - Liver KW - Excretion KW - Toxicity testing KW - P 6000:TOXICOLOGY AND HEALTH KW - X 24161:Acute exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17734384?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Pollution&rft.atitle=Lead+shot+toxicity+to+passerines&rft.au=Vyas%2C+N+B%3BSpann%2C+J+W%3BHeinz%2C+G+H&rft.aulast=Vyas&rft.aufirst=N&rft.date=2000-01-01&rft.volume=111&rft.issue=1&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Environmental+Pollution&rft.issn=02697491&rft_id=info:doi/10.1016%2FS0269-7491%2899%2900333-4 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Passeriformes; Molothrus ater; Lead; Diets; Ingestion; Excretion; Mortality; Toxicity testing; Liver; Absorption; Aves; Shotgun pellets; Blood levels DO - http://dx.doi.org/10.1016/S0269-7491(99)00333-4 ER - TY - JOUR T1 - First Record of Daphnia lumholtzi Sars in the Great Lakes AN - 17730113; 4804400 AB - Adults of the cladoceran Daphnia lumholtzi, native to Australia, Africa, and parts of Asia, were first collected in August 1999 in Lake Erie. Individuals were collected near East Harbor State Park, Lakeside, Ohio from vertical plankton net tows. The average number of D. lumholtzi that were found (0.03/L) indicate that D. lumholtzi is beginning to establish itself in Lake Erie. The morphology of this Daphnia differs greatly from native species because of its elongated head and tail spine. This sighting is important because it acknowledges yet another exotic invader into the Great Lakes basin and it also shows that this, normally, warm water species continues to expand its range northward. JF - Journal of Great Lakes Research AU - Muzinic, C J AD - U. S. Geological Survey, Great Lakes Science Center, Lake Erie Biological Station, Sandusky, OH 44870, USA, Chris_Muzinic@USGS.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 352 EP - 354 VL - 26 IS - 3 SN - 0380-1330, 0380-1330 KW - North America, Erie L. KW - North America, Great Lakes KW - Water fleas KW - cladocerans KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - New records KW - USA, Ohio, Lakeside KW - Biological Sampling KW - Freshwater KW - Cladocera KW - Lakes KW - Exotic Species KW - Daphnia lumholtzi KW - Morphology KW - Freshwater crustaceans KW - Fish KW - Lake Basins KW - Introduced species KW - Q5 08523:Conservation, wildlife management and recreation KW - SW 0850:Lakes KW - Q1 08282:Geographical distribution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17730113?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Great+Lakes+Research&rft.atitle=First+Record+of+Daphnia+lumholtzi+Sars+in+the+Great+Lakes&rft.au=Muzinic%2C+C+J&rft.aulast=Muzinic&rft.aufirst=C&rft.date=2000-01-01&rft.volume=26&rft.issue=3&rft.spage=352&rft.isbn=&rft.btitle=&rft.title=Journal+of+Great+Lakes+Research&rft.issn=03801330&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - New records; Lakes; Freshwater crustaceans; Introduced species; Exotic Species; Biological Sampling; Morphology; Fish; Lake Basins; Daphnia lumholtzi; Cladocera; USA, Ohio, Lakeside; Freshwater ER - TY - JOUR T1 - Effects of lethal control at aquaculture facilities on populations of piscivorous birds AN - 17728357; 4787099 AB - We used depredation permit records to document the extent of lethal control at aquaculture facilities in a 9-state region of the southeastern United States from 1987 to 1995, and used Christmas Bird Count (CBC) data (1987-1995) to evaluate the effects of this program on winter populations of piscivorous birds. During these 9 years, 904 depredation permits (including greater than or equal to 1 species) were issued, primarily for double-crested cormorants (Phalacrocorax auritus) (94% of permits issued), great blue herons (Ardea herodias) (80%), and great egrets (Ardea alba) (60%). For all species and years, 108,701 birds were authorized to be taken; of these, 64,011(59%) were reported taken, primarily double-crested cormorants (55%), great blue herons (21%), and great egrets (13%). Most (74-78%) of these species were taken in Arkansas. Overall, actual take did not exceed 65% of the authorized take for any species. For states where double-crested cormorants, great blue herons, or great egrets were taken, there was no negative association (r greater than or equal to -0.42, P greater than or equal to 0.26) between number of birds taken annually and the respective mean number of birds observed/CBC that same year. Also, number of these species taken annually represented <3% of the respective continental breeding populations. We conclude that number of double-crested cormorants, great blue herons, and great egrets taken with depredation permits at aquaculture facilities in the southeastern United States did not adversely affect regional winter or continental breeding populations of these species. JF - Wildlife Society Bulletin AU - Belant, J L AU - Tyson, LA AU - Mastrangelo, P A AD - United States National Park Service, Denali National Park and Preserve, P. O. Box 9, Denali Park, AK 99755, USA Y1 - 2000 PY - 2000 DA - 2000 SP - 379 EP - 384 VL - 28 IS - 2 SN - 0091-7648, 0091-7648 KW - Ardea alba KW - Birds KW - Double-crested cormorant KW - Great Egret KW - Great White Egret KW - Great blue heron KW - USA KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA Aquaculture Abstracts; Ecology Abstracts KW - Control programs KW - Predation KW - Population density KW - Environmental impact KW - Phalacrocorax auritus KW - Freshwater KW - Population dynamics KW - Aquaculture KW - Winter KW - Ardea herodias KW - Aves KW - Pisces KW - Aquaculture economics KW - Aquaculture facilities KW - Egretta alba KW - USA, Arkansas KW - Aquatic birds KW - Fish culture KW - Mortality causes KW - Q5 08523:Conservation, wildlife management and recreation KW - Q3 08581:Aquaculture: General KW - Q1 08581:General KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17728357?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wildlife+Society+Bulletin&rft.atitle=Effects+of+lethal+control+at+aquaculture+facilities+on+populations+of+piscivorous+birds&rft.au=Belant%2C+J+L%3BTyson%2C+LA%3BMastrangelo%2C+P+A&rft.aulast=Belant&rft.aufirst=J&rft.date=2000-01-01&rft.volume=28&rft.issue=2&rft.spage=379&rft.isbn=&rft.btitle=&rft.title=Wildlife+Society+Bulletin&rft.issn=00917648&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Aquaculture economics; Aquaculture facilities; Predation; Environmental impact; Population density; Mortality causes; Fish culture; Aquatic birds; Control programs; Population dynamics; Aquaculture; Winter; Pisces; Aves; Ardea herodias; Egretta alba; Phalacrocorax auritus; USA, Arkansas; Freshwater ER - TY - JOUR T1 - Comparison of 3 devices to observe white-tailed deer at night AN - 17699136; 4780533 AB - To further reduce deer-aircraft collisions, a method for observing deer on airports at night that does not affect aircraft operations is required. We compared the effectiveness of forward-looking infrared (FLIR), spotlight, and night vision goggles (NVG) to monitor the abundance of white-tailed deer (Odocoileus virginianus) along a 10-km route in Ohio during 12 nights in winter (Jan-Feb) and summer (Jul) 1997. Numbers of deer observed with FLIR (825 in winter, 570 in summer) and spotlight (716 and 445) were similar (P>0.05); number of deer observed with NVG (243 and 152) was less (P<0.05) in winter and summer. The FLIR provided the best overall observability of deer of the 3 devices tested. The FLIR was less affected than spotlights by inclement weather and was not obtrusive. Biologists working in suburban areas or on airports can use FLIR to detect deer in areas where a spotlight would be inappropriate. Under conditions tested, we do not recommend using NVG to detect white-tailed deer at night. JF - Wildlife Society Bulletin AU - Belant, J L AU - Seamans, T W AD - National Park Service, Denali National Park and Preserve, 201 First Avenue, Fairbanks, AK 99701, USA Y1 - 2000 PY - 2000 DA - 2000 SP - 154 EP - 158 VL - 28 IS - 1 SN - 0091-7648, 0091-7648 KW - White-tailed deer KW - USA, Ohio KW - Ecology Abstracts KW - Odocoileus virginianus KW - Aircraft KW - Monitoring KW - D 04700:Management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17699136?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wildlife+Society+Bulletin&rft.atitle=Comparison+of+3+devices+to+observe+white-tailed+deer+at+night&rft.au=Belant%2C+J+L%3BSeamans%2C+T+W&rft.aulast=Belant&rft.aufirst=J&rft.date=2000-01-01&rft.volume=28&rft.issue=1&rft.spage=154&rft.isbn=&rft.btitle=&rft.title=Wildlife+Society+Bulletin&rft.issn=00917648&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Odocoileus virginianus; Monitoring; Aircraft ER - TY - JOUR T1 - Do Male Breeding Displays Function to Attract Mates or Defend Territories? The Explanatory Role of Mate and Site Fidelity AN - 17696495; 4777620 AB - Many shorebirds show elaborate breeding displays that include aerial flights and ground displays accompanied by song. The mate attraction hypothesis suggests that breeding displays function to attract mates and maintain pair bonds, whereas the territory defense hypothesis suggests breeding displays function in defining and defending nesting and feeding territories. We tested these hypotheses in the Western Sandpiper (Calidris mauri) by contrasting the duration and level of male breeding displays among pairs that differed in their mate and site fidelity. As predicted by the mate attraction hypothesis, males performed the highest number of song sequences during pair formation, and males paired with their mate of a prior year sang less than males paired to new mates. Further, site-faithful males mated to a new but experienced mate displayed significantly more than remated males or males new to the area. This suggests a male's prior familiarity with an area and his neighbors does not lessen his display rate as was predicted under the territory defense hypothesis. Limited support for the territory defense hypothesis came from observations of males performing breeding displays with neighboring males along nest territory boundaries. This behavior was short-lived, however, as males abandoned nesting areas after pair-formation and used adjacent or disjointed feeding areas during egg-laying and incubation. Male aggression (i.e., aerial and ground chases), as opposed to breeding displays, appeared to be the principal means of maintaining territory boundaries. Indeed, the rate at which males chased other males remained fairly constant and high throughout the breeding season. Male chasing behavior may also serve as a paternity guard to protect against extra-pair copulations. Our study also found that a female's prior breeding experience in an area correlated with a reduced display rate by her mate, particularly if that mate was new to the area. This indicates female characteristics may not only drive nest initiation, as has been shown in other studies, but are important in determining the duration and extent of male display. JF - Waterbirds AU - Lanctot, R B AU - Sandercock, B K AU - Kempenaers, B AD - Alaska Biological Science Center, U.S. Geological Survey 1011 East Tudor Road, Anchorage, Alaska 99503, USA, richard_lanctot@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 155 EP - 164 VL - 23 IS - 2 SN - 0738-6028, 0738-6028 KW - Site fidelity KW - Western sandpiper KW - pair bond KW - Animal Behavior Abstracts; Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Marine KW - Courtship KW - Marine birds KW - Sexual behaviour KW - Mate guarding KW - Males KW - Display behavior KW - Pair bond KW - Breeding status KW - Breeding sites KW - Display behaviour KW - Reproductive behaviour KW - Territoriality KW - Calidris mauri KW - Territorial behavior KW - D 04671:Birds KW - Q1 08423:Behaviour KW - Y 25426:Birds KW - Q1 08364:Reproduction and development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17696495?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Waterbirds&rft.atitle=Do+Male+Breeding+Displays+Function+to+Attract+Mates+or+Defend+Territories%3F+The+Explanatory+Role+of+Mate+and+Site+Fidelity&rft.au=Lanctot%2C+R+B%3BSandercock%2C+B+K%3BKempenaers%2C+B&rft.aulast=Lanctot&rft.aufirst=R&rft.date=2000-01-01&rft.volume=23&rft.issue=2&rft.spage=155&rft.isbn=&rft.btitle=&rft.title=Waterbirds&rft.issn=07386028&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Courtship; Marine birds; Sexual behaviour; Breeding sites; Males; Display behaviour; Reproductive behaviour; Territoriality; Breeding status; Mate guarding; Display behavior; Pair bond; Site fidelity; Territorial behavior; Calidris mauri; Marine ER - TY - JOUR T1 - Late Summer Survival of Adult Female and Juvenile Spectacled Eiders on the Yukon-Kuskokwim Delta, Alaska AN - 17696023; 4777634 AB - We used radio-telemetry to examine survival of adult female and juvenile Spectacled Eiders (Somateria fischeri) from 30 days after hatch until departure from the Yukon-Kuskokwin Delta (YKD) during 1997-1999. Juvenile survival was 71.4%; adult female survival was 88.5%. Mink (Mustela vison) were the most common predator identified for both adults and juveniles. Detectable levels of lead were found in bones of 74% of juvenile carcasses recovered and 21% had levels indicative of acute exposure. Average age at departure was 59 plus or minus 1 days old for juveniles and 56 plus or minus 1 days after hatch for adults. Most broods (60.5%) departed the YKD synchronously. Overall our data indicate that mortality during the latter half of brood-rearing is higher than previously thought. We conclude that brood rearing is a period of high mortality for brood-rearing females and that lead poisoning is responsible for reductions in juvenile survival to fledging. JF - Waterbirds AU - Flint, P L AU - Grand, J B AU - Morse, JA AU - Fondell, T F AD - Alaska Biological Science Center, U.S. Geological Survey, Biological Resources Division 1011 East Tudor Road, Anchorage, Alaska 99503, USA, paul_flint@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 292 EP - 297 VL - 23 IS - 2 SN - 0738-6028, 0738-6028 KW - American Mink KW - Spectacled eider KW - USA, Alaska KW - females KW - lead KW - Oceanic Abstracts; Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Marine KW - Somateria fischeri KW - Brackish KW - Pollution effects KW - Survival KW - Predators KW - Summer KW - Population dynamics KW - Age differences KW - Biotelemetry KW - Lead KW - Mustela vison KW - Females KW - Mortality causes KW - INE, USA, Alaska, Yukon-Kuskokwim Delta KW - D 04671:Birds KW - Q1 08442:Population dynamics KW - O 1050:Vertebrates, Urochordates and Cephalochordates KW - Q1 08364:Reproduction and development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17696023?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Waterbirds&rft.atitle=Late+Summer+Survival+of+Adult+Female+and+Juvenile+Spectacled+Eiders+on+the+Yukon-Kuskokwim+Delta%2C+Alaska&rft.au=Flint%2C+P+L%3BGrand%2C+J+B%3BMorse%2C+JA%3BFondell%2C+T+F&rft.aulast=Flint&rft.aufirst=P&rft.date=2000-01-01&rft.volume=23&rft.issue=2&rft.spage=292&rft.isbn=&rft.btitle=&rft.title=Waterbirds&rft.issn=07386028&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Survival; Pollution effects; Summer; Predators; Females; Population dynamics; Lead; Biotelemetry; Mortality causes; Age differences; Somateria fischeri; Mustela vison; INE, USA, Alaska, Yukon-Kuskokwim Delta; Brackish; Marine ER - TY - JOUR T1 - Predictable Interregional Movements by Female Northern Pintails During Winter AN - 17694458; 4777629 AB - Factors influencing initiation of regional and interregional movements by nonbreeding ducks are poorly understood, especially during winter. During winters 1990-1991 through 1992-1993, we radiotagged 347 female Northern Pintails (Anas acuta) in southwestern Louisiana and monitored their movements to three regions: (1) the Gulf Coast Region of Louisiana and Texas (outside of southwestern Louisiana), (2) the Rice Prairie Region of Texas, and (3) the Mississippi Alluvial Valley. We found that adult females were 1.9 times more likely than were immatures to emigrate from southwestern Louisiana during winter. During winters 1990-1991 and 1991-1992, females were more likely to emigrate during stormy than during fair weather, whereas they were more likely to emigrate during fair weather in 1992-1993. Females were more likely to emigrate during duck-hunting seasons than during nonhunting seasons, regardless of weather. Daily emigration probabilities did not differ in relation to body condition when released (body mass adjusted for body size) or to number of previous emigration events. Each winter, large numbers of females consistently moved from the Gulf Coast Region to areas with abundant rice (Oryza sativa) agriculture within the Mississippi Alluvial Valley. We conclude that destination of interregional movements by this population of Northern Pintails is highly predictable, and that initiation of such movements is influenced by female age and long-term winter precipitation patterns in the Mississippi Alluvial Valley. Furthermore, timing of these movements is predictable, based not on calendar date, but rather on duck-hunting seasons and, usually, the environmental cues to habitat availability provided by stormy weather. JF - Waterbirds AU - Cox, RR Jr AU - Afton, AD AD - U.S. Geological Survey, Northern Prairie Wildlife Research Center 8711 37th St. SE, Jamestown, ND 58401, USA, robert_cox@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 258 EP - 269 VL - 23 IS - 2 SN - 0738-6028, 0738-6028 KW - Northern pintail KW - USA, Louisiana KW - duck-hunting seasons KW - females KW - rice KW - Animal Behavior Abstracts; Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Fitness KW - Weather KW - USA, Mississippi Alluvial Valley KW - Emigration KW - Sonic tags KW - USA, Gulf Coast KW - Brackish KW - Oryza sativa KW - Freshwater KW - Radio-tagging KW - Storms KW - Tracking KW - Winter KW - Anas acuta KW - Local movements KW - Rice fields KW - Migrations KW - USA, Texas KW - Females KW - Hunting KW - Q1 08421:Migrations and rhythms KW - D 04671:Birds KW - Y 25656:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17694458?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Waterbirds&rft.atitle=Predictable+Interregional+Movements+by+Female+Northern+Pintails+During+Winter&rft.au=Cox%2C+RR+Jr%3BAfton%2C+AD&rft.aulast=Cox&rft.aufirst=RR&rft.date=2000-01-01&rft.volume=23&rft.issue=2&rft.spage=258&rft.isbn=&rft.btitle=&rft.title=Waterbirds&rft.issn=07386028&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Local movements; Weather; Rice fields; Sonic tags; Migrations; Females; Hunting; Storms; Tracking; Winter; Fitness; Emigration; Radio-tagging; Anas acuta; Oryza sativa; USA, Mississippi Alluvial Valley; USA, Gulf Coast; USA, Texas; Freshwater; Brackish ER - TY - JOUR T1 - Declining scaup populations: issues, hypotheses, and research needs AN - 17690364; 4780544 AB - The population estimate for greater (Aythya marila) and lesser (Aythya affinis) scaup (combined) has declined dramatically since the early 1980s to record lows in 1998. The 1998 estimate of 3.47 million scaup is far below the goal of 6.3 million set in the North American Waterfowl Management Plan (NAWMP), causing concern among biologists and hunters. We summarize issues of concern, hypotheses for factors contributing to the population decline, and research and management needs recommended by participants of the Scaup Workshop, held in September 1999. We believe that contaminants, lower female survival, and reduced recruitment due to changes in food resources or breeding-ground habitats are primary factors contributing to the decline. These factors are not mutually exclusive but likely interact across seasons. Workshop participants identified seven action items. We need to further delineate where declines in breeding populations have occurred, with a primary focus on the western Canadian boreal forest, where declines appear to be most pronounced. Productivity in various areas and habitats throughout the breeding range needs to be assessed by conducting retrospective analyses of existing data and by intensive field studies at broad and local scales. Annual and seasonal survival rates need to be determined in order to assess the role of harvest or natural mortality. Effects of contaminants on reproduction, female body condition, and behavior must be investigated. Use, distribution, and role of food resources relative to body condition and reproduction need to be examined to better understand seasonal dynamics of nutrient reserves and the role in reproductive success. Affiliations among breeding, migration, and wintering areas must be assessed in order to understand differential exposure to harvest or contaminants, and differential reproductive success and recruitment. Biologists and agencies need to gather and improve information needed to manage greater and lesser scaup separately; this includes monitoring the breeding populations of each species separately, closer examination of existing data to improve surveys and data collection, and re-evaluation of the NAWMP population goal. These complex issues will require extensive cooperation and communication among many agencies and organizations in North America. JF - Wildlife Society Bulletin AU - Austin, JE AU - Afton, AD AU - Anderson, M G AU - Clark, R G AU - Custer, C M AU - Lawrence, J S AU - Pollard, J B AU - Ringelman, J K AD - United States Geological Survey, Northern Prairie Wildlife Research Center, Jamestown, ND 58401, USA Y1 - 2000 PY - 2000 DA - 2000 SP - 254 EP - 263 VL - 28 IS - 1 SN - 0091-7648, 0091-7648 KW - Greater scaup KW - Lesser scaup KW - North America KW - Ecology Abstracts KW - Aythya marila KW - Wildlife management KW - Aythya affinis KW - Population decline KW - D 04700:Management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17690364?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wildlife+Society+Bulletin&rft.atitle=Declining+scaup+populations%3A+issues%2C+hypotheses%2C+and+research+needs&rft.au=Austin%2C+JE%3BAfton%2C+AD%3BAnderson%2C+M+G%3BClark%2C+R+G%3BCuster%2C+C+M%3BLawrence%2C+J+S%3BPollard%2C+J+B%3BRingelman%2C+J+K&rft.aulast=Austin&rft.aufirst=JE&rft.date=2000-01-01&rft.volume=28&rft.issue=1&rft.spage=254&rft.isbn=&rft.btitle=&rft.title=Wildlife+Society+Bulletin&rft.issn=00917648&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aythya marila; Aythya affinis; Population decline; Wildlife management ER - TY - JOUR T1 - Comparison of precipitation chemistry in the Central Rocky Mountains, Colorado, USA AN - 17680042; 4714838 AB - Volume-weighted mean concentrations of nitrate (NO sub(3) super(-)), ammonium (NH sub(4) super(+)), and sulfate (SO sub(4) super(2-)) in precipitation were compared at high-elevation sites in Colorado from 1992 to 1997 to evaluate emission source areas to the east and west of the Rocky Mountains. Precipitation chemistry was measured by two sampling methods, the National Atmospheric Deposition Program/National Trends Network (NADP/NTN) and snowpack surveys at maximum accumulation. Concentrations of NO sub(3) super(-) and SO sub(4) super(2-) in winter precipitation were greater on the western slope of the Rockies, and concentrations of NO sub(3) super(-) and NH sub(4) super(+) in summer precipitation were greater on the eastern slope. Summer concentrations in general were almost twice as high as winter concentrations. Seasonal weather patterns in combination with emission source areas help to explain these differences. This comparison shows that high-elevation ecosystems in Colorado are influenced by air pollution emission sources located on both sides of the Continental Divide. It also suggests that sources of nitrogen and sulfur located east of the Divide have a greater influence on precipitation chemistry in the Colorado Rockies. JF - Atmospheric Environment AU - Heuer, K AU - Tonnessen, KA AU - Ingersoll, G P AD - National Park Service-Air Resources Division, P.O. Box 25287, Denver, CO 80225-0287, USA, kristi_heuer@nps.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 1713 EP - 1722 VL - 34 IS - 11 SN - 1352-2310, 1352-2310 KW - USA, Colorado, Rocky Mts. KW - Water Resources Abstracts; Pollution Abstracts KW - Air Pollution KW - Seasonal Variations KW - Emission inventories KW - Chemistry of Precipitation KW - Rainfall KW - Atmospheric chemistry KW - Air sampling KW - Sampling KW - Seasonal variations KW - SW 0880:Chemical processes KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17680042?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Comparison+of+precipitation+chemistry+in+the+Central+Rocky+Mountains%2C+Colorado%2C+USA&rft.au=Heuer%2C+K%3BTonnessen%2C+KA%3BIngersoll%2C+G+P&rft.aulast=Heuer&rft.aufirst=K&rft.date=2000-01-01&rft.volume=34&rft.issue=11&rft.spage=1713&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2FS1352-2310%2899%2900430-6 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special issue: National Atmospheric Deposition Program (NADP). N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Emission inventories; Rainfall; Atmospheric chemistry; Air sampling; Seasonal variations; Air Pollution; Seasonal Variations; Chemistry of Precipitation; Sampling DO - http://dx.doi.org/10.1016/S1352-2310(99)00430-6 ER - TY - JOUR T1 - Age and Growth of Pike (Esox lucius) in Chivyrkui Bay, Lake Baikal AN - 17671598; 4752664 AB - The purpose of this study was to describe age and growth of pike (Esox lucius) in Lake Baikal. Pike were collected with gill nets and by angling in Chivyrkui Bay in late July-early August 1993 and by gill nets in June 1995. Total length (mm), weight (g), and sex were recorded and scales and cleithra were collected for aging. In 1993, pike, ages 1 to 3, ranged in length from 331 to 810 mm and in 1995, pike, ages 2 to 10, ranged in length from 365 to 1,111 mm but only three percent were age 7 or older. Most growth in length occurred during the first two years of life. The length-weight relation for pike from Chivyrkui Bay was similar to that of pike from eastern Lake Ontario, and the cleithra-total body relation was similar to that of pike from the St. Lawrence River. Calculated total length of pike from Lake Baikal equalled or exceeded the lengths of pike from lakes Erie or Ontario. Good agreement was found between ages from cleithra and from scales. Lengths at age in June 1995 (N = 108) varied widely among pike. Females were generally larger than males at a given age among fish age-3 and older. When compared with the circumpolar growth standard, based on the von Bertalanffy growth curve, growth of Lake Baikal pike exceeded all other Asian populations, and equalled or exceeded many other northern hemisphere populations. JF - Journal of Great Lakes Research AU - Owens, R W AU - Pronin, N M AD - U.S. Geological Survey, Great Lakes Science Center, Lake Ontario Biological Station, 17 Lake Street, Oswego, New York 13126, USA, randy_owens@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 164 EP - 173 PB - International Association for Great Lakes Research VL - 26 IS - 2 SN - 0380-1330, 0380-1330 KW - Northern pike KW - Russia KW - Russia, Siberia, Baikal L. KW - growth KW - mathematical models KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources; Water Resources Abstracts KW - Age KW - Age at recruitment KW - Population characteristics KW - Age determination KW - Freshwater KW - Lake Fisheries KW - Length-weight relationships KW - Growth KW - Lakes KW - Pike KW - Gill Nets KW - Age groups KW - Russia, Siberia, Baykal L. KW - Esox lucius KW - SW 0850:Lakes KW - Q1 08424:Age and growth KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17671598?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Great+Lakes+Research&rft.atitle=Age+and+Growth+of+Pike+%28Esox+lucius%29+in+Chivyrkui+Bay%2C+Lake+Baikal&rft.au=Owens%2C+R+W%3BPronin%2C+N+M&rft.aulast=Owens&rft.aufirst=R&rft.date=2000-01-01&rft.volume=26&rft.issue=2&rft.spage=164&rft.isbn=&rft.btitle=&rft.title=Journal+of+Great+Lakes+Research&rft.issn=03801330&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Length-weight relationships; Age at recruitment; Population characteristics; Age groups; Age determination; Lakes; Growth; Age; Pike; Gill Nets; Lake Fisheries; Esox lucius; Russia, Siberia, Baykal L.; Freshwater ER - TY - JOUR T1 - Plant-herbivore-hydroperiod interactions: Effects of native mammals on floodplain tree recruitment AN - 17638094; 4775664 AB - Floodplain plant-herbivore-hydroperiod interactions have received little attention despite their potential as determinants of floodplain structure and functioning. We used five types of exclosures to differentially exclude small-, medium-, and large-sized mammals from accessing Fremont cottonwood (Populus deltoides Marshall subsp. wizlizenii (Watson) Eckenwalder) seedlings and saplings growing naturally on four landform types at an alluvial reach on each of two rivers, the Green and Yampa, in Colorado and Utah. The two study reaches differed primarily as a result of flow regulation on the Green River, which began in 1962. Landforms were a rarely flooded portion of the alluvial plain, geomorphically active slow- and fast-water channel margin sites on the Yampa reach, and an aggrading side channel on the Green. Small-mammal live-trapping and observational data indicated that, with minor exceptions, the kinds of mammals eating cottonwood within each reach were identical. We monitored condition and fates of individual cottonwood plants from October 1993 through the 1997 growing season. Differences in survival and growth were noted both within and between reaches, and both due to, and independent of, mammalian herbivory. Comparisons of cottonwood growth and survivorship among exclosures and between exclosures and controls indicated that a small mammal, Microtus montanus, reduced seedling and sapling survivorship at the Green River reach, but to a lesser extent (seedlings) or not at all (saplings) on the Yampa reach. In contrast, reductions in sapling height increment attributable to medium- and large-sized herbivores were detected only at the Yampa site. We suggest that these differences are a result of (1) flow regulation allowing Microtus populations to escape the mortality normally accompanying the large, snowmelt-driven spring flood, as well as regulation promoting a herbaceous understory favorable to voles, and (2) greater browsing pressure from overwintering deer and elk at the Yampa reach, unrelated to flow regulation. Within areas used by foraging beaver, the probability of a sapling being cut by beaver was similar on the two reaches. This study suggests that changes in riparian plant-herbivore relationships due to shifts in river hydrology may be a common and important consequence of river regulation. JF - Ecological Applications AU - Andersen, D C AU - Cooper, D J AD - United States Geological Survey, D-8220, P.O. Box 25007, Denver, Colorado 80225-007, USA Y1 - 2000 PY - 2000 DA - 2000 SP - 1384 EP - 1399 PB - Ecological Society of America VL - 10 IS - 5 SN - 1051-0761, 1051-0761 KW - Eastern cottonwood KW - Mammals KW - USA, Colorado KW - USA, Utah KW - Ecology Abstracts KW - Flood plains KW - Recruitment KW - Herbivory KW - Mammalia KW - Populus deltoides KW - D 04625:Plants - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17638094?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Applications&rft.atitle=Plant-herbivore-hydroperiod+interactions%3A+Effects+of+native+mammals+on+floodplain+tree+recruitment&rft.au=Andersen%2C+D+C%3BCooper%2C+D+J&rft.aulast=Andersen&rft.aufirst=D&rft.date=2000-01-01&rft.volume=10&rft.issue=5&rft.spage=1384&rft.isbn=&rft.btitle=&rft.title=Ecological+Applications&rft.issn=10510761&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Populus deltoides; Mammalia; Herbivory; Flood plains; Recruitment ER - TY - JOUR T1 - A new approach toward evaluation of fish bioenergetics models AN - 17616837; 4748166 AB - A new approach was used to evaluate the Wisconsin bioenergetics model for lake trout (Salvelinus namaycush). Lake trout in laboratory tanks were fed alewife (Alosa pseudoharengus) and rainbow smelt (Osmerus mordax), prey typical of lake trout in Lake Michigan. Food consumption and growth by lake trout during the experiment were measured. Polychlorinated biphenyl (PCB) concentrations of the alewife and rainbow smelt, as well as of the lake trout at the beginning and end of the experiment, were determined. It was calculated from these data, that lake trout retained 81% of the PCBs contained within their food. In an earlier study, application of the Wisconsin lake trout bioenergetics model to growth and diet data from lake trout in Lake Michigan, in conjunction with PCB data for lake trout and prey fish from Lake Michigan, yielded an estimate of PCB assimilation efficiency from food of 81%. This close agreement in the estimates of efficiency with which lake trout retain PCBs from their food indicated that the bioenergetics model was furnishing accurate predictions of food consumption by lake trout in Lake Michigan. JF - Canadian Journal of Fisheries and Aquatic Sciences AU - Madenjian, C P AU - O'Connor, D V AU - Nortrup, DA AD - U.S. Geological Survey, Great Lakes Science Center 1451 Green Road, Ann Arbor, MI 48105 USA, chuck_madenjian@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 1025 EP - 1032 VL - 57 IS - 5 SN - 0706-652X, 0706-652X KW - mathematical models KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - Growth rate KW - Food consumption KW - USA, Michigan L. KW - Alosa pseudoharengus KW - Osmerus mordax KW - Bioenergetics KW - Predation KW - Salvelinus namaycush KW - Freshwater KW - PCB KW - Q5 08504:Effects on organisms KW - Q1 08425:Nutrition and feeding habits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17616837?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.atitle=A+new+approach+toward+evaluation+of+fish+bioenergetics+models&rft.au=Madenjian%2C+C+P%3BO%27Connor%2C+D+V%3BNortrup%2C+DA&rft.aulast=Madenjian&rft.aufirst=C&rft.date=2000-01-01&rft.volume=57&rft.issue=5&rft.spage=1025&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.issn=0706652X&rft_id=info:doi/10.1139%2Fcjfas-57-5-1025 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - This article is Contribution 1097 of the U.S. Geological Survey Great Lakes Science Center. N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Growth rate; Food consumption; Bioenergetics; Predation; PCB; Alosa pseudoharengus; Osmerus mordax; Salvelinus namaycush; USA, Michigan L.; Freshwater DO - http://dx.doi.org/10.1139/cjfas-57-5-1025 ER - TY - JOUR T1 - Stratigraphy and historic accumulation of mercury in recent depositional sediments in the Sudbury River, Massachusetts, USA AN - 17616602; 4748170 AB - The distribution and deposition of sedimentary mercury in the Sudbury River were linked to an industrial complex (Nyanza site) that operated from 1917 through 1978. In two reservoirs just downstream from the Nyanza site, estimated rates of mercury accumulation increased markedly in the 1920s and 1930s, were greatest during 1976-1982, decreased within 5 years after industrial operations ceased, and have decreased further since capping of contaminated soil at the Nyanza site was completed in 1991. The most contaminated sediments were typically buried, yet the 0 to 1 cm stratum remained substantially contaminated in all cores. Mercury accumulating in the surficial, reservoir sediments was probably from continuing, albeit much lesser, inputs from the Nyanza site, whereas recent inputs to downstream wetland areas were attributed to recycling of sedimentary mercury or to mercury from unidentified local sources. In the reservoirs, burial of highly contaminated sediments is gradually decreasing the amount of sedimentary mercury available for methylation. In downstream wetlands, however, sedimentary mercury seemed to be more available than that in the reservoirs for physical transport and biogeochemical cycling. JF - Canadian Journal of Fisheries and Aquatic Sciences AU - Frazier, B E AU - Wiener, J G AU - Rada, R G AU - Engstrom AD - U.S. Fish and Wildlife Service 11103 E Montgomery Dr., Spokane, WA 99206 USA, james_weiner@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 1062 EP - 1072 VL - 57 IS - 5 SN - 0706-652X, 0706-652X KW - core analysis KW - transport KW - vertical distribution KW - ASFA 3: Aquatic Pollution & Environmental Quality KW - Sediment pollution KW - Industrial wastes KW - Biogeochemical cycle KW - Stratigraphy KW - Wetlands KW - Freshwater KW - USA, Massachusetts, Sudbury R. KW - Q5 08503:Characteristics, behavior and fate UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17616602?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.atitle=Stratigraphy+and+historic+accumulation+of+mercury+in+recent+depositional+sediments+in+the+Sudbury+River%2C+Massachusetts%2C+USA&rft.au=Frazier%2C+B+E%3BWiener%2C+J+G%3BRada%2C+R+G%3BEngstrom&rft.aulast=Frazier&rft.aufirst=B&rft.date=2000-01-01&rft.volume=57&rft.issue=5&rft.spage=1062&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.issn=0706652X&rft_id=info:doi/10.1139%2Fcjfas-57-5-1062 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Industrial wastes; Biogeochemical cycle; Stratigraphy; Wetlands; USA, Massachusetts, Sudbury R.; Freshwater DO - http://dx.doi.org/10.1139/cjfas-57-5-1062 ER - TY - JOUR T1 - Distribution, hydrologic transport, and cycling of total mercury and methyl mercury in a contaminated river-reservoir-wetland system (Sudbury River, eastern Massachusetts) AN - 17616162; 4748173 AB - Riparian wetlands contaminated with Hg from an industrial point source were found to be important sites of production and release of methyl mercury (MeHg) in a 40 km reach of the Sudbury River in eastern Massachusetts. Stream discharge and concentration measurements were used to calculate annual mean loads for total Hg and MeHg in contaminated river reaches, a reservoir, and a riparian wetland downstream from the industrial source. Budgets based on these loads indicated that the annual mean capital sigma Hg load increased sixfold in a reach receiving flow from the point source, but the annual mean MeHg load did not increase. About 23% of the capital sigma Hg load was removed by sedimentation during flow through the reservoir. Net production of MeHg in the reservoir was similar to that reported elsewhere for lakes receiving Hg from atmospheric deposition only. capital sigma Hg concentrations and loads increased significantly as the river passed through the riparian wetland reach. On the basis of flooded wetland area, net production of MeHg was 15 times greater in the wetland reach than in wetland-associated drainages described in other studies. JF - Canadian Journal of Fisheries and Aquatic Sciences AU - Waldron, M C AU - Colman, JA AU - Breault, R F AD - U.S. Geological Survey, Water Resources Division 10 Bearfoot Road, Northborough, MA 01532 USA, mwaldron@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 1080 EP - 1091 VL - 57 IS - 5 SN - 0706-652X, 0706-652X KW - biogeochemical cycle KW - distribution KW - food chains KW - sampling KW - transport KW - ASFA 3: Aquatic Pollution & Environmental Quality KW - Methyl mercury KW - Industrial wastes KW - Mercury KW - Wetlands KW - Freshwater KW - USA, Massachusetts, Sudbury R. KW - Water pollution KW - Q5 08503:Characteristics, behavior and fate UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17616162?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.atitle=Distribution%2C+hydrologic+transport%2C+and+cycling+of+total+mercury+and+methyl+mercury+in+a+contaminated+river-reservoir-wetland+system+%28Sudbury+River%2C+eastern+Massachusetts%29&rft.au=Waldron%2C+M+C%3BColman%2C+JA%3BBreault%2C+R+F&rft.aulast=Waldron&rft.aufirst=M&rft.date=2000-01-01&rft.volume=57&rft.issue=5&rft.spage=1080&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.issn=0706652X&rft_id=info:doi/10.1139%2Fcjfas-57-5-1080 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Methyl mercury; Industrial wastes; Mercury; Wetlands; Water pollution; USA, Massachusetts, Sudbury R.; Freshwater DO - http://dx.doi.org/10.1139/cjfas-57-5-1080 ER - TY - JOUR T1 - Sampling for mercury at subnanogram per litre concentrations for load estimation in rivers AN - 17615884; 4748171 AB - Estimation of constituent loads in streams requires collection of stream samples that are representative of constituent concentrations, that is, composites of isokinetic multiple verticals collected along a stream transect. An all-Teflon isokinetic sampler cleaned in 75 degree C, 4 N HCl was tested using blank, split, and replicate samples to assess systematic and random sample contamination by mercury species. Mean mercury concentrations in field-equipment blanks were low: 0.135 ng times L super(-1) for total mercury ( capital sigma Hg) and 0.0086 ng times L super(-1) for monomethyl mercury (MeHg). Mean square errors (MSE) for capital sigma Hg and MeHg duplicate samples collected at eight sampling stations were not statistically different from MSE of samples split in the laboratory, which represent the analytical and splitting error. Low field-blank concentrations and statistically equal duplicate- and split-sample MSE values indicate that no measurable contamination was occurring during sampling. Standard deviations associated with example mercury load estimations were four to five times larger, on a relative basis, than standard deviations calcultated from duplicate samples, indicating that error of the load determination was primarily a function of the loading model used, not of sampling or analytical methods. JF - Canadian Journal of Fisheries and Aquatic Sciences AU - Colman, JA AU - Breault, R F AD - U.S. Geological Survey, Water Resources Division 10 Bearfoot Road, Northborough, MA 01532 USA, jacolman@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 1073 EP - 1079 VL - 57 IS - 5 SN - 0706-652X, 0706-652X KW - industrial wastes KW - water pollution KW - ASFA 3: Aquatic Pollution & Environmental Quality KW - Mercury KW - Freshwater KW - USA, Massachusetts, Sudbury R. KW - Samplers KW - Q5 08502:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17615884?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.atitle=Sampling+for+mercury+at+subnanogram+per+litre+concentrations+for+load+estimation+in+rivers&rft.au=Colman%2C+JA%3BBreault%2C+R+F&rft.aulast=Colman&rft.aufirst=JA&rft.date=2000-01-01&rft.volume=57&rft.issue=5&rft.spage=1073&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.issn=0706652X&rft_id=info:doi/10.1139%2Fcjfas-57-5-1073 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Mercury; Samplers; USA, Massachusetts, Sudbury R.; Freshwater DO - http://dx.doi.org/10.1139/cjfas-57-5-1073 ER - TY - JOUR T1 - Mercury in the Sudbury River (Massachusetts, U.S.A.): pollution history and a synthesis of recent research AN - 17615834; 4748169 AB - Five papers in which the transport, fate, and bioavailability of mercury in the Sudbury River, are reviewed. Mercury entered the river from an industrial complex (site) that operated from 1917 to 1978. Rates of mercury accumulation in sediment cores from two reservoirs just downstream from the site decreased soon after industrial operations ended and have decreased further since capping of contaminated soils at the site in 1991. The reservoirs contained the most contaminated sediments and were depositional sinks for total mercury. Methyl mercury concentrations in biota did not parallel concentrations of total mercury in the sediments to which organisms were exposed, experimentally or as residents. Contaminated wetlands within the floodplain about 25 km downstream from the site produced and exported methyl mercury from inorganic mercury that had originated from the site. Natural burial processes have gradually decreased the quantity of sedimentary mercury available for methylation within the reservoirs, whereas mercury in the lesser contaminated wetlands farther downstream has remained more available for transport, methylation, and entry into food webs. JF - Canadian Journal of Fisheries and Aquatic Sciences AU - Wiener, J G AU - Shields, P J AD - U.S. Geological Survey, Upper Midwest Environmental Sciences Center 2630 Fanta Reed Road, La Crosse, WI 54603 USA, james_wiener@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 1053 EP - 1061 VL - 57 IS - 5 SN - 0706-652X, 0706-652X KW - fate KW - food webs KW - historical account KW - literature reviews KW - transport KW - ASFA 3: Aquatic Pollution & Environmental Quality KW - Methyl mercury KW - Sediment pollution KW - Biota KW - Industrial wastes KW - Mercury KW - Freshwater KW - USA, Massachusetts, Sudbury R. KW - Water pollution KW - Q5 08503:Characteristics, behavior and fate UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17615834?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.atitle=Mercury+in+the+Sudbury+River+%28Massachusetts%2C+U.S.A.%29%3A+pollution+history+and+a+synthesis+of+recent+research&rft.au=Wiener%2C+J+G%3BShields%2C+P+J&rft.aulast=Wiener&rft.aufirst=J&rft.date=2000-01-01&rft.volume=57&rft.issue=5&rft.spage=1053&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.issn=0706652X&rft_id=info:doi/10.1139%2Fcjfas-57-5-1053 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Methyl mercury; Biota; Industrial wastes; Mercury; Water pollution; USA, Massachusetts, Sudbury R.; Freshwater DO - http://dx.doi.org/10.1139/cjfas-57-5-1053 ER - TY - JOUR T1 - Bioavailability of sediment-associated mercury to Hexagenia mayflies in a contaminated floodplain river AN - 17612891; 4748172 AB - The bioavailability of mercury was examined in sediments from the Sudbury River (Massachusetts, USA). Mayfly nymphs (Hexagenia) were exposed in four 21 day bioaccumulation tests to contaminated and reference sediments from reservoirs, flowing reaches, palustrine wetlands, and a riverine lake. Mean total mercury ranged from 880 to 22 059 ng times g dry weight super(-1) in contaminated sediments and from 90 to 272 ng times g super(-1) in reference sediments. Mean final concentrations of methyl mercury in test water were greatest in treatments with contaminated wetland sediments. In mayflies, final mean concentrations of MeHg were highest in treatments with contaminated wetland sediments, intermediate in treatments with contaminated sediments from reservoirs, flowing reaches, and a riverine lake, and lowest in treatments with reference sediments. It was concluded that the potential entry of MeHg into the benthic food chain was greater in contaminated palustrine wetlands than in the contaminated reservoirs, which had the most contaminated sediments. JF - Canadian Journal of Fisheries and Aquatic Sciences AU - Naimo, T J AU - Wiener, J G AU - Cope, W G AU - Bloom, N S AD - U.S. Geological Survey, Midwest Environmental Sciences Center 2630 Fanta Reed Road, La Crosse, WI 54603 USA, teresa_naimo@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 1092 EP - 1102 VL - 57 IS - 5 SN - 0706-652X, 0706-652X KW - ASFA 3: Aquatic Pollution & Environmental Quality KW - Sediment pollution KW - Methyl mercury KW - Food chains KW - Mercury KW - Freshwater KW - USA, Massachusetts, Sudbury R. KW - Hexagenia KW - Benthos KW - Q5 08503:Characteristics, behavior and fate UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17612891?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.atitle=Bioavailability+of+sediment-associated+mercury+to+Hexagenia+mayflies+in+a+contaminated+floodplain+river&rft.au=Naimo%2C+T+J%3BWiener%2C+J+G%3BCope%2C+W+G%3BBloom%2C+N+S&rft.aulast=Naimo&rft.aufirst=T&rft.date=2000-01-01&rft.volume=57&rft.issue=5&rft.spage=1092&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.issn=0706652X&rft_id=info:doi/10.1139%2Fcjfas-57-5-1092 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Methyl mercury; Sediment pollution; Food chains; Mercury; Benthos; Hexagenia; USA, Massachusetts, Sudbury R.; Freshwater DO - http://dx.doi.org/10.1139/cjfas-57-5-1092 ER - TY - JOUR T1 - Optical properties of aerosols at Grand Canyon National Park AN - 17606187; 4740892 AB - Visibility in the United States is expected to improve over the next few decades because of reduced emissions, especially sulfur dioxide. In the eastern United States, sulfates make up about 60-70% of aerosol extinction, while in the inner mountain west that fraction is only about 30%. In the inner mountain west, carbon aerosols make up about 35% of extinction, while coarse mass contributes between 15 and 25% depending on how absorption is estimated. Although sulfur dioxide emissions are projected to decrease, carbon emissions due to prescribed fire activity will increase by factors of 5-10, and while optical properties of sulfates have been extensively studied, similar properties of carbon and coarse particles are less well understood. The inability to conclusively apportion about 50% of the extinction budget motivated a study to examine aerosol physio-chemical-optical properties at Grand Canyon, Arizona during the months of July and August. Coarse particle mass has usually been assumed to consist primarily of wind-blown dust, with a mass-scattering efficiency between about 0.4 and 0.6 m super(2) g super(-1). Although there were episodes where crustal material made up most of the coarse mass, on the average, organics and crustal material mass were about equal. Furthermore, about one-half of the sampling periods had coarse-mass-scattering efficiencies greater than 0.6 m super(2) g super(-1) and at times coarse-mass-scattering efficiencies were near 1.0 m super(2) g super(-1). It was shown that absorption by coarse- and fine-particle absorption were about equal and that both fine organic and sulfate mass-scattering efficiencies were substantially less than the nominal values of 4.0 and 3.0 m super(2) g super(-1) that have typically been used. JF - Atmospheric Environment AU - Malm, W C AU - Day, DE AD - National Park Service - Air Resources Division, CIRA, Colorado State University, Fort Collins, CO 80523, USA, malm@cira.colostate.edu Y1 - 2000 PY - 2000 DA - 2000 SP - 3373 EP - 3391 VL - 34 IS - 20 SN - 1352-2310, 1352-2310 KW - USA, Grand Canyon Natl. Park KW - Pollution Abstracts KW - Aerosols KW - Physicochemical properties KW - National parks KW - Optical analysis KW - Sulfur dioxide KW - Visibility KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17606187?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Optical+properties+of+aerosols+at+Grand+Canyon+National+Park&rft.au=Malm%2C+W+C%3BDay%2C+DE&rft.aulast=Malm&rft.aufirst=W&rft.date=2000-01-01&rft.volume=34&rft.issue=20&rft.spage=3373&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2FS1352-2310%2800%2900108-4 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - National parks; Visibility; Sulfur dioxide; Physicochemical properties; Optical analysis; Aerosols DO - http://dx.doi.org/10.1016/S1352-2310(00)00108-4 ER - TY - JOUR T1 - Metal exposure in a benthic macroinvertebrate, Hydropsyche californica related to mine drainage in the Sacramento River AN - 17603841; 4725310 AB - A biomonitoring technique was employed to complement studies of metal transport in the upper Sacramento River affected by acid mine drainage. Metals (Al, Cd, Cu, Fe, Hg, Pb, and Zn) were determined in a resident invertebrate, Hydropsyche californica (Insecta: Trichoptera), and streambed sediments (<62 mu m) to assess metal contamination within a 111-km section of the river downstream of the mining area. Metals in H. californica also were interpreted to be broadly indicative of metal exposure in fish. Total Hg was determined in the whole body of the insect, whereas Al, Cd, Cu, Fe, Pb, and Zn were additionally separated into operationally defined cytosolic (used as indicator of exposure to bioavailable metal) and particulate fractions. Total concentrations of Cd, Cu, Hg, Pb, and Zn in sediments were consistent with documented upstream sources of acid mine drainage. Metal distribution patterns in H. californica and sediments were generally consistent for Cd, Cu, and Pb but inconsistent for Hg and Zn. Concentrations in H. californica indicated that bioavailable Cd, Cu, Pb, and Zn was transported at least 120 km downstream of the mine sources. Zinc in H. californica was elevated, but unlike sediments, did not decrease downstream. Mercury in H. californica was not elevated. JF - Canadian Journal of Fisheries and Aquatic Sciences AU - Cain, D J AU - Carter, J L AU - Fend, S V AU - Luoma, S N AU - Alpers, C N AU - Taylor, HE AD - U.S. Geological Survey MS, 465, 345 Middlefield Road, Menlo Park, CA 94025 USA, djcain@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 380 EP - 390 VL - 57 IS - 2 SN - 0706-652X, 0706-652X KW - ASFA 3: Aquatic Pollution & Environmental Quality KW - Metals KW - Pollutants KW - USA, California, Sacramento R. KW - Hydropsyche californica KW - Mining KW - Sediment composition KW - Freshwater KW - Aquatic insects KW - Drainage water KW - Q5 08503:Characteristics, behavior and fate KW - Q5 08504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17603841?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.atitle=Metal+exposure+in+a+benthic+macroinvertebrate%2C+Hydropsyche+californica+related+to+mine+drainage+in+the+Sacramento+River&rft.au=Cain%2C+D+J%3BCarter%2C+J+L%3BFend%2C+S+V%3BLuoma%2C+S+N%3BAlpers%2C+C+N%3BTaylor%2C+HE&rft.aulast=Cain&rft.aufirst=D&rft.date=2000-01-01&rft.volume=57&rft.issue=2&rft.spage=380&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.issn=0706652X&rft_id=info:doi/10.1139%2Fcjfas-57-2-380 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Metals; Pollutants; Sediment composition; Mining; Aquatic insects; Drainage water; Hydropsyche californica; USA, California, Sacramento R.; Freshwater DO - http://dx.doi.org/10.1139/cjfas-57-2-380 ER - TY - JOUR T1 - Relationship of wooded riparian zones and runoff potential to fish community composition in agricultural streams AN - 17603670; 4725302 AB - The relationship of fish community composition to riparian cover and runoff potential was investigated in 20 streams in the agricultural Minnesota River Basin during the summer of 1997. Analysis of variance indicated significant differences in fish community composition due to both riparian cover (wooded versus open) and runoff potential (high or low). Streams with wooded riparian zones had higher index of biological integrity (IBI) scores, species richness, diversity, and percentages of benthic insectivores and herbivores than streams with open riparian zones. Streams with low runoff potential had higher IBI scores and species richness than streams with high runoff potential. The riparian cover and runoff potential interaction was marginally significant with respect to IBI scores and species richness, suggesting a weak interaction between the two factors. Although both factors were important, riparian cover influenced fish community composition more than runoff potential in these streams, indicating that local factors (close to the stream) dominated landscape- or basin-level factors. JF - Canadian Journal of Fisheries and Aquatic Sciences AU - Stauffer, J C AU - Goldstein, R M AU - Newman, R M AD - U.S. Geological Survey, Water Resources Division 2280 Woodale Drive, Mounds View, MN 55112 USA, goldstei@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 307 EP - 316 VL - 57 IS - 2 SN - 0706-652X, 0706-652X KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - Rivers KW - Catostomus commersoni KW - Etheostoma nigrum KW - Community composition KW - USA, Minnesota R. KW - Riparian zone KW - Cyprinidae KW - Species diversity KW - Percina maculata KW - Freshwater KW - Agricultural runoff KW - Q1 08482:Ecosystems and energetics KW - Q1 08422:Environmental effects KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17603670?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.atitle=Relationship+of+wooded+riparian+zones+and+runoff+potential+to+fish+community+composition+in+agricultural+streams&rft.au=Stauffer%2C+J+C%3BGoldstein%2C+R+M%3BNewman%2C+R+M&rft.aulast=Stauffer&rft.aufirst=J&rft.date=2000-01-01&rft.volume=57&rft.issue=2&rft.spage=307&rft.isbn=&rft.btitle=&rft.title=Canadian+Journal+of+Fisheries+and+Aquatic+Sciences&rft.issn=0706652X&rft_id=info:doi/10.1139%2Fcjfas-57-2-307 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Rivers; Community composition; Riparian zone; Species diversity; Agricultural runoff; Etheostoma nigrum; Catostomus commersoni; Cyprinidae; Percina maculata; USA, Minnesota R.; Freshwater DO - http://dx.doi.org/10.1139/cjfas-57-2-307 ER - TY - JOUR T1 - Land use, habitat, and water quality effects on macroinvertebrate communities in three watersheds of a Lake Michigan associated marsh system AN - 17598597; 4710858 AB - Three watersheds within a marsh system draining into Lake Michigan in northwest Indiana, USA, were studied for differences among land use, habitat conditions and water quality to determine their influence on macroinvertebrate community structure. Much of this area had been altered for agricultural, commercial, industrial and residential land uses. Land use, habitat conditions and water quality were significantly different among watersheds. Water quality varied more among streams than within streams. Several variables were related to land use, especially dissolved ions. Macroinvertebrate communities depicted neither a healthy wetland nor a healthy stream system. Some sites were typical of a sand-based, erosional stream system and others were more typical of a wetland system. Communities were different both in and among streams; relationships with water chemistry variables and land use suggested that community structure was a function of local-scale, abiotic factors rather than watershed-scale characteristics. These results show the importance of local-scale influences on the structure and function of macroinvertebrate communities. The development of the methods used to measure these local-scale landscape factors is important to restoration and management. JF - Aquatic Ecosystem Health & Management AU - Stewart, P M AU - Butcher, J T AU - Swinford, TO AD - Lake Michigan Ecological Research Station, Biological Resources Division, US Geological Survey, 1100 N. Mineral Springs Rd., Porter, IN 46304, USA, michael_stewart@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 179 EP - 189 VL - 3 IS - 1 SN - 1463-4988, 1463-4988 KW - North America, Michigan L. KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Land Use KW - Geochemistry KW - Physicochemical properties KW - Water Quality KW - Macroinvertebrates KW - Marshes KW - Freshwater KW - Watersheds KW - Water quality KW - Habitat KW - USA, Indiana, Michigan L. KW - Resources Management KW - Land use KW - Restoration KW - Habitats KW - Erosion KW - Community composition KW - Aquatic communities KW - Ecosystem management KW - Invertebrata KW - Abiotic factors KW - SW 2060:Effects on water of human nonwater activities KW - Q1 08463:Habitat community studies KW - Q5 08522:Protective measures and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17598597?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquatic+Ecosystem+Health+%26+Management&rft.atitle=Land+use%2C+habitat%2C+and+water+quality+effects+on+macroinvertebrate+communities+in+three+watersheds+of+a+Lake+Michigan+associated+marsh+system&rft.au=Stewart%2C+P+M%3BButcher%2C+J+T%3BSwinford%2C+TO&rft.aulast=Stewart&rft.aufirst=P&rft.date=2000-01-01&rft.volume=3&rft.issue=1&rft.spage=179&rft.isbn=&rft.btitle=&rft.title=Aquatic+Ecosystem+Health+%26+Management&rft.issn=14634988&rft_id=info:doi/10.1016%2FS1463-4988%2899%2900058-5 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special Issue: Large lakes of the World: Comparative Ecology. N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Community composition; Aquatic communities; Physicochemical properties; Ecosystem management; Marshes; Habitat; Water quality; Land use; Restoration; Abiotic factors; Land Use; Erosion; Habitats; Geochemistry; Water Quality; Macroinvertebrates; Watersheds; Resources Management; Invertebrata; USA, Indiana, Michigan L.; Freshwater DO - http://dx.doi.org/10.1016/S1463-4988(99)00058-5 ER - TY - JOUR T1 - Performance of Implantable Satellite Transmitters in Diving Seabirds AN - 17596611; 4719572 AB - We report on the first deployment of satellite transmitters in large alcids. In 1995 and 1996, we surgically implanted 51 transmitters in Common and Thick-billed murres (Uria aalge and U. lomvia) and Tufted Puffins (Fratercula cirrhata) at three colonies in Alaska. These devices furnished more than 2,900 locations over succeeding months (eight months maximum transmitter life), some 30-40% of which had calculated errors of <1,000 m. We considered other data to be reliable if locations were repetitive within a short period of time. As measures of data collection efficiency, we calculated location indices (number of locations per hour of transmission) of 0.44 during the breeding season and 0.35 overall. Those values compared favorably with satellite transmitters previously deployed on large mammals at similar latitudes. Transmitters did not last as long as expected because lithium batteries tended to self-discharge when kept at the high internal temperature of a bird. Most importantly, we encountered high mortality of instrumented birds, especially in the interval from 11-20 days after release. Our results suggest that radio transmission itself somehow impaired normal feeding behavior or otherwise compromised the birds' health. Those two problems (battery life and bird mortality) will need to be solved before implantable devices can be applied effectively to the same or similar species in the future. JF - Waterbirds AU - Hatch, SA AU - Meyers, P M AU - Mulcahy, D M AU - Douglas, D C AD - U.S. Geological Survey, Alaska Biological Science Center, 1011 East Tudor Road, Anchorage, AK 99503, USA, scott_hatch@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 84 EP - 94 VL - 23 IS - 1 SN - 0738-6028, 0738-6028 KW - Auks KW - Brunnich's Guillemot KW - Common Guillemot KW - Common murre KW - Thick-billed murre KW - Tufted puffin KW - USA, Alaska KW - Animal Behavior Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Marine KW - Mortality KW - Marine birds KW - Alcidae KW - Diving KW - INE, USA, Alaska KW - Uria aalge KW - Radio-tagging KW - Uria lomvia KW - Longevity KW - Biotelemetry KW - Satellite sensing KW - Colonies KW - Fratercula cirrhata KW - Movements KW - Activity patterns KW - O 1070:Ecology/Community Studies KW - Q1 08382:Ecological techniques and apparatus KW - D 04671:Birds KW - Y 25866:Birds KW - Y 25506:Birds KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17596611?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Waterbirds&rft.atitle=Performance+of+Implantable+Satellite+Transmitters+in+Diving+Seabirds&rft.au=Hatch%2C+SA%3BMeyers%2C+P+M%3BMulcahy%2C+D+M%3BDouglas%2C+D+C&rft.aulast=Hatch&rft.aufirst=SA&rft.date=2000-01-01&rft.volume=23&rft.issue=1&rft.spage=84&rft.isbn=&rft.btitle=&rft.title=Waterbirds&rft.issn=07386028&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Satellite sensing; Colonies; Marine birds; Diving; Activity patterns; Biotelemetry; Mortality; Movements; Radio-tagging; Longevity; Fratercula cirrhata; Alcidae; Uria aalge; Uria lomvia; INE, USA, Alaska; Marine ER - TY - JOUR T1 - Effects of neck collars and radiotransmitters on survival and reproduction of emperor geese AN - 17591170; 4689095 AB - Neck collars have been used widely for studies of goose population biology. Despite concerns about their negative impacts, few studies have employed designs capable of clearly demonstrating these effects. During a 1993-98 study of emperor geese (Chen canagica), we contrasted survival and reproduction of geese marked with tarsal bands to those marked with either small neck collars, large neck collars, or small neck collars with attached radiotransmitters. Annual survival of adult females marked with tarsal bands varied among years and averaged 0.807 plus or minus 0.140 (x plus or minus SE). Survival of geese with other types of markers also varied among years but was lower (0.640 plus or minus 0.198). Collars with radiotransmitters lowered breeding propensity, as indexed by resighting rates. Although clutch sizes of tarsal banded birds were similar to those for unmarked birds, other markers reduced clutch sizes by about 1 egg. Egg mass and hatch date were not affected by marker type. Future studies of goose demographics should seriously consider use of alternative markers. JF - Journal of Wildlife Management AU - Schmutz, JA AU - Morse, JA AD - Alaska Biological Science Center, Biological Resources Division, U.S. Geological Survey, 1011 East Tudor Road, Anchorage, AK 99503, USA, joel_schmutz@usgs.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 231 EP - 237 PB - Wildlife Society VL - 64 IS - 1 SN - 0022-541X, 0022-541X KW - Emperor goose KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Collars KW - Sonic tags KW - Survival KW - Freshwater KW - Population dynamics KW - Radio-tagging KW - Biotelemetry KW - Tracking KW - Tags KW - Clutch KW - Reproduction KW - Chen canagica KW - D 04671:Birds KW - Q1 08421:Migrations and rhythms KW - D 04001:Methodology - general KW - Q1 08442:Population dynamics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17591170?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Wildlife+Management&rft.atitle=Effects+of+neck+collars+and+radiotransmitters+on+survival+and+reproduction+of+emperor+geese&rft.au=Schmutz%2C+JA%3BMorse%2C+JA&rft.aulast=Schmutz&rft.aufirst=JA&rft.date=2000-01-01&rft.volume=64&rft.issue=1&rft.spage=231&rft.isbn=&rft.btitle=&rft.title=Journal+of+Wildlife+Management&rft.issn=0022541X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Tags; Clutch; Sonic tags; Survival; Reproduction; Population dynamics; Tracking; Biotelemetry; Collars; Radio-tagging; Chen canagica; Freshwater ER - TY - JOUR T1 - Composition of Fish Communities in Relation to Stream Acidification and Habitat in the Neversink River, New York AN - 17590271; 4681643 AB - The effects of acidification in lotic systems are not well documented. Spatial and temporal variability of habitat and water quality complicate the evaluation of acidification effects in streams and rivers. The Neversink River in the Catskill Mountains of southeastern New York, the tributaries of which vary from well buffered to severely acidified, provided an opportunity to investigate the extent and magnitude of acidification effects on fish communities of headwater systems. Composition of fish communities, water quality, stream hydrology, stream habitat, and physiographic factors were characterized from 1991 to 1995 at 16 first- to fourth-order sites in the basin. Correlation and regression analyses were used to develop empirical models and to assess the relations among fish species richness, total fish density, and total fish biomass and environmental variables. Chronic and episodic acidification and elevated concentrations of inorganic monomeric aluminum were common, and fish populations were rare or absent from several sites in the upper reaches of the basin; as many as six fish species were collected from sites in the lower reaches of the basin. Species distributions and species richness were most highly related to stream pH, acid-neutralizing capacity (ANC), inorganic monomeric aluminum (Al sub(im)), calcium (Ca) super(2+), and potassium (K) super(+) concentrations, site elevation, watershed drainage area, and water temperature. Fish density was most highly related to stream pH, Al sub(im), ANC, K super(+), Ca super(2+), and magnesium (Mg) super(2+) concentrations. Fish biomass, unlike species richness and fish density, was most highly related to physical habitat characteristics, water temperature, and concentrations of Mg super(2+) and silicon. Acidity characteristics were of secondary importance to fish biomass at all but the most severely acidified sites. Our results indicate that (1) the total biomass of fish communities was not seriously affected at moderately to strongly acidified sites; (2) species richness and total density of fish were adversely affected at strongly to severely acidified sites; and (3) possible changes in competitive interactions may mitigate negative effects of acidification on fish communities in parts of the Neversink River Basin. JF - Transactions of the American Fisheries Society AU - Baldigo, B P AU - Lawrence, G B AD - U.S. Geological Survey, Water Resources Division, 425 Jordan Road, Troy, New York 12180, USA, bbaldigo@usgs.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 60 EP - 76 VL - 129 IS - 1 SN - 0002-8487, 0002-8487 KW - USA, New York KW - USA, New York, Neversink R. KW - Ecology Abstracts; Pollution Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Rivers KW - Environmental impact KW - Population density KW - Freshwater KW - Habitat KW - Water quality KW - Habitat selection KW - Pisces KW - Community composition KW - Community structure KW - Acidification KW - Q1 08463:Habitat community studies KW - P 2000:FRESHWATER POLLUTION KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17590271?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Composition+of+Fish+Communities+in+Relation+to+Stream+Acidification+and+Habitat+in+the+Neversink+River%2C+New+York&rft.au=Baldigo%2C+B+P%3BLawrence%2C+G+B&rft.aulast=Baldigo&rft.aufirst=B&rft.date=2000-01-01&rft.volume=129&rft.issue=1&rft.spage=60&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Community composition; Population density; Environmental impact; Acidification; Habitat selection; Rivers; Water quality; Habitat; Community structure; Pisces; Freshwater ER - TY - JOUR T1 - Survival of American black ducks radiomarked in Quebec, Nova Scotia, and Vermont AN - 17590170; 4689096 AB - We monitored survival of 397 radiomarked juvenile American black ducks (Anas rubripes) distributed among Les Escoumins (n = 75) and Kamouraska, Quebec (n = 84), Amherst Point, Nova Scotia (n = 89), and a site on the Vermont-Quebec border (n = 149) during autumn 1990 and 1991. Eighty-six percent (215 of 250) of all confirmed mortalities during the study was from hunting; 72% of marked ducks were shot and retrieved and 14% were shot and unretrieved. We tested for differences in survival in relation to sex, body mass, year (1990-91. 1991-92), and among the 4 locations for each of 2 monitoring periods (early, EMP; late, LMP). With data from the EMP for Vermont-Quebec in 1990 and 1991, Les Escoumins in 1990, and Amherst Point in 1991, survival of hatching-year (HY) males and females did not differ (P = 0.357). For sexes combined for the EMP, survival of ducks was greater in 1991 than 1990 (P = 0.086), and differed among locations (P = 0.013). Survival (years combined) was greater at Amherst Point than at Kamouraska (P = 0.003) and Vermont-Quebec (P = 0.002) during the EMP. The highest survival rate at Amherst Point (0.545 plus or minus 0.056 [SE]) was associated with the latest date (8 Oct) of season opening; the lowest survival rate (0,395 plus or minus 0.043) was at the Vermont-Quebec border, where hunter numbers and activity were greatest. For the LMP, no interaction between years and locations was detected (P = 0.942), and no differences in survival existed between years (P = 0.102) and among locations (P = 0.349). No association was detected between body mass at capture and survival of combined males and females during the EMP (P = 0.572) or during the LMP (P = 0.965). When we censored hunting losses for combined years for each period, EMP or LMP, all survival estimates exceeded 0.800 (0.809-0.965). These data emphasize need for an improved harvest strategy for American black ducks in North America to allow for increases in breeding populations to achieve population goals. JF - Journal of Wildlife Management AU - Longcore, J R AU - Mcauley, D G AU - Clugston, DA AU - Bunck, C M AU - Giroux, J-F AU - Ouellet, C AU - Parker, G R AU - Dupuis, P AU - Stotts, D B AU - Goldsberry, J R AD - U.S. Geological Survey, Patuxent Wildlife Research Center, 5768 South Annex A, Orono, ME 04469, USA, jerry_longcore@usgs.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 238 EP - 252 PB - Wildlife Society VL - 64 IS - 1 SN - 0022-541X, 0022-541X KW - American black duck KW - Canada, Quebec KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Resource management KW - Sonic tags KW - Stock assessment KW - Survival KW - Sex differences KW - Radio-tagging KW - Anas rubripes KW - Canada KW - Body weight KW - Hunting statistics KW - Hunting KW - USA, Vermont KW - Mortality causes KW - D 04671:Birds KW - Q1 08604:Stock assessment and management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17590170?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Wildlife+Management&rft.atitle=Survival+of+American+black+ducks+radiomarked+in+Quebec%2C+Nova+Scotia%2C+and+Vermont&rft.au=Longcore%2C+J+R%3BMcauley%2C+D+G%3BClugston%2C+DA%3BBunck%2C+C+M%3BGiroux%2C+J-F%3BOuellet%2C+C%3BParker%2C+G+R%3BDupuis%2C+P%3BStotts%2C+D+B%3BGoldsberry%2C+J+R&rft.aulast=Longcore&rft.aufirst=J&rft.date=2000-01-01&rft.volume=64&rft.issue=1&rft.spage=238&rft.isbn=&rft.btitle=&rft.title=Journal+of+Wildlife+Management&rft.issn=0022541X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Resource management; Sonic tags; Hunting statistics; Stock assessment; Survival; Mortality causes; Body weight; Sex differences; Hunting; Radio-tagging; Anas rubripes; Canada; USA, Vermont ER - TY - JOUR T1 - Investigation of nitrogen transformations in a southern California constructed wastewater treatment wetland AN - 17583745; 4633622 AB - A 9.9-ha combined habitat and wastewater treatment demonstration wetland was constructed and planted in the summer of 1994, at Eastern Municipal Water District's (EMWD) Hemet/San Jacinto Regional Water Reclamation Facility (RWRF) in southern California. From January 1996 through September 1997, the marsh-pond-marsh wetland system was operated to polish an average of 3785 m super(3) d super(-1) (1 x 10 super(6) gal day super(-1)) of secondary-treated effluent from the RWRF. Nitrogen removal was a major objective of this wetland treatment. Weekly inflow/outflow water quality monitoring of the wetland was supplemented with biannual, 45-station synoptic surveys within the system to determine internal distribution patterns of the nitrogen species (total ammonia, nitrite, nitrate, and organic nitrogen), total organic carbon (TOC), and ultraviolet absorbance at 254 nm (UV sub(254)). Synoptic surveys were carried out during May 22 and September 17, 1996, and May 6 and September 25, 1997 and the results were mapped using the ARC/INFO processing package and inverse distance weighted mathematical techniques. Distribution patterns of the various nitrogen species, TOC, and UV sub(254) within the wetland indicate that the nitrogen dynamics of the system are influenced both by variations in treatment plant loading, and, increasingly, by the degree of coverage and maturity of the emergent vegetation. JF - Ecological Engineering AU - Sartoris, J J AU - Thullen, J S AU - Barber, L B AU - Salas, DE AD - U.S. Geological Survey, Biological Resources Division, P.O. Box 25007 D-8220, Denver, CO 80225-0007, USA, james_j_sartoris@usgs.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 49 EP - 65 VL - 14 IS - 1-2 SN - 0925-8574, 0925-8574 KW - USA, California KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Water Resources Abstracts KW - Nitrogen Cycle KW - Water Quality KW - Effluent treatment KW - Artificial Wetlands KW - Wastewater treatment KW - Nitrogen removal KW - Municipal Wastewater KW - Total organic carbon KW - Ultraviolet radiation KW - Nitrogen cycle KW - Wetlands KW - Monitoring KW - Wastewater Treatment KW - Nitrogen KW - P 3000:SEWAGE & WASTEWATER TREATMENT KW - Q5 08503:Characteristics, behavior and fate KW - SW 3040:Wastewater treatment processes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17583745?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Engineering&rft.atitle=Investigation+of+nitrogen+transformations+in+a+southern+California+constructed+wastewater+treatment+wetland&rft.au=Sartoris%2C+J+J%3BThullen%2C+J+S%3BBarber%2C+L+B%3BSalas%2C+DE&rft.aulast=Sartoris&rft.aufirst=J&rft.date=2000-01-01&rft.volume=14&rft.issue=1-2&rft.spage=49&rft.isbn=&rft.btitle=&rft.title=Ecological+Engineering&rft.issn=09258574&rft_id=info:doi/10.1016%2FS0925-8574%2899%2900019-1 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special Issue: Nitrogen & phosphorus retention in wetlands N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Nitrogen cycle; Wetlands; Wastewater treatment; Nitrogen; Nitrogen removal; Total organic carbon; Ultraviolet radiation; Effluent treatment; Municipal Wastewater; Nitrogen Cycle; Water Quality; Monitoring; Wastewater Treatment; Artificial Wetlands DO - http://dx.doi.org/10.1016/S0925-8574(99)00019-1 ER - TY - JOUR T1 - Monitoring shifts in plant diversity in response to climate change: a method for landscapes AN - 17516746; 4698714 AB - Improved sampling designs are needed to detect, monitor, and predict plant migrations and plant diversity changes caused by climate change and other human activities. We propose a methodology based on multi-scale vegetation plots established across forest ecotones which provide baseline data on patterns of plant diversity, invasions of exotic plant species, and plant migrations at landscape scales in Rocky Mountain National Park, Colorado, USA. We established forty two 1000-m super(2) plots in relatively homogeneous forest types and the ecotones between them on 14 vegetation transects. We found that 64% of the variance in understory species distributions at landscape scales were described generally by gradients of elevation and under-canopy solar radiation. Superimposed on broad-scale climatic gradients are small-scale gradients characterized by patches of light, pockets of fertile soil, and zones of high soil moisture. Eighteen of the 42 plots contained at least one exotic species; monitoring exotic plant invasions provides a means to assess changes in native plant diversity and plant migrations. Plant species showed weak affinities to overstory vegetation types, with 43% of the plant species found in three or more vegetation types. Replicate transects along several environmental gradients may provide the means to monitor plant diversity and species migrations at landscape scales because: (1) ecotones may play crucial roles in expanding the geophysiological ranges of many plant species; (2) low affinities of understory species to overstory forest types may predispose vegetation types to be resilient to rapid environmental change; and (3) ecotones may help buffer plant species from extirpation and extinction. JF - Biodiversity and Conservation AU - Stohlgren, T J AU - Owen, A J AU - Lee, M AD - Midcontinent Ecological Science Center, US Geological Survey, Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, CO 80523-1499, USA, Thomas_Stohlgren@USGS.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 65 EP - 86 VL - 9 IS - 1 SN - 0960-3115, 0960-3115 KW - USA, Colorado KW - Ecology Abstracts KW - Vegetation patterns KW - Climatic changes KW - Species diversity KW - Plants KW - Sampling KW - Monitoring KW - Methodology KW - D 04001:Methodology - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17516746?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biodiversity+and+Conservation&rft.atitle=Monitoring+shifts+in+plant+diversity+in+response+to+climate+change%3A+a+method+for+landscapes&rft.au=Stohlgren%2C+T+J%3BOwen%2C+A+J%3BLee%2C+M&rft.aulast=Stohlgren&rft.aufirst=T&rft.date=2000-01-01&rft.volume=9&rft.issue=1&rft.spage=65&rft.isbn=&rft.btitle=&rft.title=Biodiversity+and+Conservation&rft.issn=09603115&rft_id=info:doi/10.1023%2FA%3A1008995726486 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Sampling; Monitoring; Plants; Species diversity; Climatic changes; Methodology; Vegetation patterns DO - http://dx.doi.org/10.1023/A:1008995726486 ER - TY - JOUR T1 - The Use of Mathematical Models to Predict Beach Behavior for U.S. Coastal Engineering: A Critical Review AN - 17501743; 4691068 AB - A number of assumed empirical relationships (e.g., the Bruun Rule, the equilibrium shoreface profile, longshore transport rate equation, beach length: durability relationship, and the renourishment factor) and deterministic numerical models (e.g., GENESIS, SBEACH) have become important tools for investigating coastal processes and for coastal engineering design in the U.S. They are also used as the basis for making public policy decisions, such as the feasibility of nourishing recreational beaches. A review of the foundations of these relationships and models, however, suggests that they are inadequate for the tasks for which they are used. Many of the assumptions used in analytical and numerical models are not valid in the context of modern oceanographic and geologic principles. We believe the models are oversimplifications of complex systems that are poorly understood. There are several reasons for this, including: (1) poor assumptions and important omissions in model formulation; (2) the use of relationships of questionable validity to predict the morphologic response to physical forcing; (3) the lack of hindsighting and objective evaluation of beach behavior predictions for engineering projects; (4) the incorrect use of model calibration and verification as assertions of model veracity; and (5) the fundamental inability to predict coastal evolution quantitatively at the engineering and planning time and space scales our society assumes and demands. It is essential that coastal geologists, beach designers and coastal modelers understand these model limitations. Each important model assumption must be examined in isolation; incorporating them into a model does not improve their validity. It is our belief that the models reviewed here should not be relied on as a design tool until they have been substantially modified and proven in real-world situations. The "solution," however, is not to increase the complexity of a model by increasing the number of variables. What is needed is a thoughtful review of what beach behavior questions should or could be answered by modeling. Viable alternatives to the use of models do exist to predict the behavior of beaches. Three such alternatives to models are discussed for nourished beach design. JF - Journal of Coastal Research AU - Thieler, E R AU - Pilkey, OH Jr AU - Young, R S AU - Bush, D M AU - Chai, Fei AD - U.S. Geological Survey, 384 Woods Hole Road, Woods Hole, MA 02543, USA, rthieler@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 48 EP - 70 VL - 16 IS - 1 SN - 0749-0208, 0749-0208 KW - USA KW - mathmatical models KW - Water Resources Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Prediction KW - Marine KW - Beaches KW - Coastal engineering KW - Mathematical Models KW - Nearshore dynamics KW - Coastal landforms KW - Behavior KW - Literature reviews KW - Coastal Engineering KW - Reviews KW - Coastal morphology KW - Beach nourishment KW - Sediment transport KW - Beach morphology KW - Beach profiles KW - Q2 09271:Coastal morphology KW - O 3050:Sediment Dynamics KW - SW 0870:Erosion and sedimentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17501743?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Coastal+Research&rft.atitle=The+Use+of+Mathematical+Models+to+Predict+Beach+Behavior+for+U.S.+Coastal+Engineering%3A+A+Critical+Review&rft.au=Thieler%2C+E+R%3BPilkey%2C+OH+Jr%3BYoung%2C+R+S%3BBush%2C+D+M%3BChai%2C+Fei&rft.aulast=Thieler&rft.aufirst=E&rft.date=2000-01-01&rft.volume=16&rft.issue=1&rft.spage=48&rft.isbn=&rft.btitle=&rft.title=Journal+of+Coastal+Research&rft.issn=07490208&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Prediction; Coastal engineering; Coastal landforms; Literature reviews; Beach nourishment; Coastal morphology; Sediment transport; Beach profiles; Beach morphology; Nearshore dynamics; Beaches; Mathematical Models; Behavior; Coastal Engineering; Reviews; Marine ER - TY - JOUR T1 - Identifying predators and fates of grassland passerine nests using miniature video cameras AN - 17498098; 4689076 AB - Nest fates, causes of nest failure, and identities of nest predators are difficult to determine for grassland passerines. We developed a miniature video-camera system for use in grasslands and deployed it at 69 nests of 10 passerine species in North Dakota during 1996-97. Abandonment rates were higher at nests 1 day or night (22-116 hr) at 6 nests, 5 of which were depredated by ground squirrels or mice. For nests without cameras, estimated predation rates were lower for ground nests than aboveground nests (P = 0.055), but did not differ between open and covered nests (P = 0.74). Open and covered nests differed, however, when predation risk (estimated by initial-predation rate) was examined separately for day and night using camera-monitored nests; the frequency of initial predations that occurred during the day was higher for open nests than covered nests (P = 0.015). Thus, vulnerability of some nest types may depend on the relative importance of nocturnal and diurnal predators. Predation risk increased with nestling age from 0 to 8 days (P = 0.07). Up to 15% of fates assigned to camera-monitored nests were wrong when based solely on evidence that would have been available from periodic nest visits. There was no evidence of disturbance at nearly half the depredated nests, including all 5 depredated by large mammals. Overlap in types of sign left by different predator species, and variability of sign within species, suggests that evidence at nests is unreliable for identifying predators of grassland passerines. JF - Journal of Wildlife Management AU - Pietz, P J AU - Granfors, DA AD - U.S. Geological Survey, Northern Prairie Wildlife Research Center, 8711 37th Street S.E., Jamestown, ND 58401, USA, pam_pietz@usgs.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 71 EP - 87 PB - Wildlife Society VL - 64 IS - 1 SN - 0022-541X, 0022-541X KW - Birds KW - USA, North Dakota KW - Ecology Abstracts KW - Aves KW - Grasslands KW - Reproductive failure KW - Cameras KW - Predation KW - Nests KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17498098?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Wildlife+Management&rft.atitle=Identifying+predators+and+fates+of+grassland+passerine+nests+using+miniature+video+cameras&rft.au=Pietz%2C+P+J%3BGranfors%2C+DA&rft.aulast=Pietz&rft.aufirst=P&rft.date=2000-01-01&rft.volume=64&rft.issue=1&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Journal+of+Wildlife+Management&rft.issn=0022541X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; Predation; Nests; Reproductive failure; Grasslands; Cameras ER - TY - JOUR T1 - Habitat use and reproductive success of western snowy plovers at new nesting areas created for California least terns AN - 17496715; 4689071 AB - The Pacific coast population of western snowy plovers (Charadrius alexandrinus nivosus) was listed as threatened under the Endangered Species Act (ESA) in 1993 and its decline is primarily attributed to habitat loss. In southern California, snowy plovers typically nest in association with federally endangered California least terns (Sterna antillarum browni). Since least terns were afforded protection under the ESA, the creation of nesting habitat from dredged materials has been a popular component of habitat restoration to partially compensate for wetland loss in this region. We had a unique opportunity to monitor habitat use and reproductive success at newly created habitats associated with the restoration of Batiquitos Lagoon, San Diego County, California from 1994 to 1998. We also compared hatch and fledge rates and habitat characteristics of snowy plovers nesting at new nesting areas at Batiquitos Lagoon to a nearby natural beach and a dredged-material area created in the 1970s. The number of nesting attempts by snowy plovers increased from 5 in 1994 to a high of 38 in 1997, and plovers nested on 4 of the 5 created areas. Fledge rates at Batiquitos Lagoon varied annually and declined after the initial colonization in 1995. Fledge rate in 1995 was higher at the newly created area than at the older dredged-material and natural beach areas in any other year. Nests on the created areas at Batiquitos Lagoon were surrounded by less vegetative cover, less debris, and shorter vegetation than nests at the older dredged-material and natural beach areas. Nonbreeding snowy plovers used created habitats within the lagoon, and more plovers used the lagoon and its adjacent beach during fall than winter. Predation pressure and habitat quality were important factors determining use and reproductive success on created areas at Batiquitos Lagoon. JF - Journal of Wildlife Management AU - Powell, AN AU - Collier, CL AD - U.S. Geological Survey, Northern Prairie Wildlife Research Center, Arkansas Field Station, Department of Biological Sciences, University of Arkansas, Fayetteville, AR 72701, USA, Abby_Powell@usgs.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 24 EP - 33 PB - Wildlife Society VL - 64 IS - 1 SN - 0022-541X, 0022-541X KW - California least tern KW - USA, California KW - Ecology Abstracts KW - Sterna antillarum browni KW - Management KW - Charadrius alexandrinus nivosus KW - Endangered species KW - Habitat utilization KW - Reproduction KW - D 04700:Management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17496715?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Wildlife+Management&rft.atitle=Habitat+use+and+reproductive+success+of+western+snowy+plovers+at+new+nesting+areas+created+for+California+least+terns&rft.au=Powell%2C+AN%3BCollier%2C+CL&rft.aulast=Powell&rft.aufirst=AN&rft.date=2000-01-01&rft.volume=64&rft.issue=1&rft.spage=24&rft.isbn=&rft.btitle=&rft.title=Journal+of+Wildlife+Management&rft.issn=0022541X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Charadrius alexandrinus nivosus; Sterna antillarum browni; Reproduction; Habitat utilization; Management; Endangered species ER - TY - JOUR T1 - Assessing land-use impacts on biodiversity using an expert systems tool AN - 17486431; 4682238 AB - Habitat alteration, in the form of land-use development, is a leading cause of biodiversity loss in the U.S. and elsewhere. Although statutes in the U.S. may require consideration of biodiversity in local land-use planning and regulation, local governments lack the data, resources, and expertise to routinely consider biotic impacts that result from permitted land uses. We hypothesized that decision support systems could aid solution of this problem. We developed a pilot biodiversity expert systems tool (BEST) to test that hypothesis and learn what additional scientific and technological advancements are required for broad implementation of such a system. BEST uses data from the U.S. Geological Survey's Gap Analysis Program (GAP) and other data in a desktop GIS environment. The system provides predictions of conflict between proposed land uses and biotic elements and is intended for use at the start of the development review process. Key challenges were the development of categorization systems that relate named land-use types to ecological impacts, and relate sensitivities of biota to ecological impact levels. Although the advent of GAP and sophisticated desktop GIS make such a system feasible for broad implementation, considerable ongoing research is required to make the results of such a system scientifically sound, informative, and reliable for the regulatory process. We define a role for local government involvement in biodiversity impact assessment, the need for a biodiversity decision support system, the development of a prototype system, and scientific needs for broad implementation of a robust and reliable system. JF - Landscape Ecology AU - Crist, P J AU - Kohley, T W AU - Oakleaf, J AD - USGS Gap Analysis Program, 530 S. Asbury Street, Suite 1, Moscow, ID 83843, Russia, pcrist@uidaho.edu Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 47 EP - 62 VL - 15 IS - 1 SN - 0921-2973, 0921-2973 KW - Ecology Abstracts KW - Biological diversity KW - Gap analysis KW - Land use KW - Human impact KW - D 04890:Planning/development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17486431?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Landscape+Ecology&rft.atitle=Assessing+land-use+impacts+on+biodiversity+using+an+expert+systems+tool&rft.au=Crist%2C+P+J%3BKohley%2C+T+W%3BOakleaf%2C+J&rft.aulast=Crist&rft.aufirst=P&rft.date=2000-01-01&rft.volume=15&rft.issue=1&rft.spage=47&rft.isbn=&rft.btitle=&rft.title=Landscape+Ecology&rft.issn=09212973&rft_id=info:doi/10.1023%2FA%3A1008117427864 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Land use; Human impact; Biological diversity; Gap analysis DO - http://dx.doi.org/10.1023/A:1008117427864 ER - TY - JOUR T1 - Assessing the Contribution of Anadromous Herring to Largemouth Bass Growth AN - 17485696; 4681644 AB - Juvenile anadromous river herring (alewife Alosa pseudoharengus and blueback herring A. aestivalis) spend the first 3 to 7 months of life in headwater lakes of coastal systems. Systems that support herring often produce trophy largemouth bass Micropterus salmoides. Even though biologists, managers, and anglers have speculated about the value of anadromous herring as a key prey for resident predators, the contribution that herring make to the diets of these predators has not been assessed. Herein, we quantified largemouth bass diets in two coastal lakes, Santuit and Coonamessett ponds, that contained anadromous herring, and we used bioenergetics modeling to evaluate the importance of herring prey to largemouth bass growth. During May through November 1994, largemouth bass diets consisted of various fish species, crayfish, and other invertebrates. Although not the most important prey overall, herring were the most important fish prey consumed in both lakes based on number of individuals consumed. In both lakes, herring were primarily eaten by largemouth bass that were fewer than 300 mm in total length after mid-August. Coonamessett Pond largemouth bass ate more herring and other fish prey and achieved better growth than did those in Santuit Pond. Bioenergetics modeling simulations revealed that water temperature does not explain the presence of trophy largemouth bass in southeastern Massachusetts. Because largemouth bass grow better on a diet that includes herring, we conclude that juvenile herring are an energetically valuable and a potentially key prey for largemouth bass. However, factors other than energetics mediate the use of herring by these resident predators. Further investigations into spatial dynamics, size structure, and foraging behavior are necessary to understand the mechanisms that drive interactions between largemouth bass and anadromous herring. JF - Transactions of the American Fisheries Society AU - Yako, LA AU - Mather, ME AU - Juanes, F AD - Massachusetts Cooperative Fish and Wildlife Research Unit, USGS-BRD, Department of Forestry and Wildlife Management, University of Massachusetts, Amherst, Massachusetts 01003, USA, mather@forwild.umass.edu Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 77 EP - 88 VL - 129 IS - 1 SN - 0002-8487, 0002-8487 KW - Alewife KW - Blueback herring KW - Juveniles KW - Largemouth bass KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Diets KW - Marine KW - Micropterus salmoides KW - Brackish KW - Prey selection KW - Food availability KW - Freshwater KW - Stomach content KW - Growth KW - Lakes KW - Alosa pseudoharengus KW - Feeding behaviour KW - Alosa aestivalis KW - Prey KW - D 04668:Fish KW - Q1 08425:Nutrition and feeding habits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17485696?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Assessing+the+Contribution+of+Anadromous+Herring+to+Largemouth+Bass+Growth&rft.au=Yako%2C+LA%3BMather%2C+ME%3BJuanes%2C+F&rft.aulast=Yako&rft.aufirst=LA&rft.date=2000-01-01&rft.volume=129&rft.issue=1&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Stomach content; Feeding behaviour; Prey selection; Food availability; Diets; Lakes; Growth; Prey; Micropterus salmoides; Alosa pseudoharengus; Alosa aestivalis; Marine; Brackish; Freshwater ER - TY - JOUR T1 - Woody riparian vegetation response to different alluvial water table regimes AN - 17484742; 4685878 AB - Woody riparian vegetation in western North American riparian ecosystems is commonly dependent on alluvial groundwater. Various natural and anthropogenic mechanisms can cause groundwater declines that stress riparian vegetation, but little quantitative information exists on the nature of plant response to different magnitudes, rates, and durations of groundwater decline. We observed groundwater dynamics and the response of Populus fremontii, Salix gooddingii, and Tamarix ramosissima saplings at 3 sites between 1995 and 1997 along the Bill Williams River, Arizona. At a site where the lowest observed groundwater level in 1996 (-1.97 m) was 1.11 m lower than that in 1995 (-0.86 m), 92-100% of Populus and Salix saplings died, whereas 0-13% of Tamarix stems died. A site with greater absolute water table depths in 1996 (-2.55 m), but less change from the 1995 condition (0.55 m), showed less Populus and Salix mortality and increased basal area. Excavations of sapling roots suggest that root distribution is related to groundwater history. Therefore, a decline in water table relative to the condition under which roots developed may strand plant roots where they cannot obtain sufficient moisture. Plant response is likely mediated by other factors such as soil texture and stratigraphy, availability of precipitation-derived soil moisture, physiological and morphological adaptations to water stress, and tree age. An understanding of the relationships between water table declines and plant response may enable land and water managers to avoid activities that are likely to stress desirable riparian vegetation. JF - Western North American Naturalist AU - Shafroth, P B AU - Stromberg, J C AU - Patten, D T AD - United States Geological Survey, Midcontinent Ecological Science Center, Fort Collins, CO 80525-3400, USA Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 66 EP - 76 PB - Monte L. Bean Life Sciences Museum, Brigham Young University VL - 60 IS - 1 SN - 1527-0904, 1527-0904 KW - Fremont cottonwood KW - North America KW - USA, Arizona KW - USA, Arizona, Bill Williams R. KW - Ecology Abstracts; Water Resources Abstracts KW - Mortality KW - Riparian Vegetation KW - Soil Texture KW - Ecosystems KW - Salix gooddingii KW - Trees KW - Stratigraphy KW - Roots KW - Soil Water KW - Dynamics KW - Water Stress KW - Populus fremontii KW - Vegetation changes KW - Ground water KW - Riparian environments KW - Water Table Fluctuations KW - Alluvial Aquifers KW - Tamarix ramosissima KW - D 04625:Plants - general KW - SW 0860:Water and plants KW - D 04315:Riverbasins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17484742?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Western+North+American+Naturalist&rft.atitle=Woody+riparian+vegetation+response+to+different+alluvial+water+table+regimes&rft.au=Shafroth%2C+P+B%3BStromberg%2C+J+C%3BPatten%2C+D+T&rft.aulast=Shafroth&rft.aufirst=P&rft.date=2000-01-01&rft.volume=60&rft.issue=1&rft.spage=66&rft.isbn=&rft.btitle=&rft.title=Western+North+American+Naturalist&rft.issn=15270904&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Populus fremontii; Salix gooddingii; Tamarix ramosissima; Water Table Fluctuations; Alluvial Aquifers; Riparian Vegetation; Roots; Water Stress; Ecosystems; Soil Texture; Stratigraphy; Soil Water; Dynamics; Mortality; Trees; Riparian environments; Vegetation changes; Ground water ER - TY - JOUR T1 - Progression and Severity of Gas Bubble Trauma in Juvenile Salmonids AN - 17481461; 4681652 AB - We conducted laboratory experiments to assess the progression and to quantify the severity of signs of gas bubble trauma (GBT) in juvenile chinook salmon Oncorhynchus tshawytscha and steelhead Oncorhynchus mykiss exposed to different levels of total dissolved gas (TDG), and we attempted to relate these signs to the likelihood of mortality. When fish were exposed to 110% TDG for up to 22 d, no fish died, and there were few signs of GBT in the lateral line or gills. Bubbles in the fins, however, were relatively common, and they progressively worsened over the experimental period. When fish were exposed to 120% TDG for up to 140 h, chinook salmon had an LT sub(20) (time necessary to kill 20% of the fish) ranging from 40 to 120 h, whereas steelhead had LT sub(20)s ranging from 20 to 35 h. In steelhead, bubbles in the lateral line, fins, and gills displayed poor trends of worsening over time, showed substantial interindividual variability, and were poorly related to mortality. In chinook salmon, only bubbles in the lateral line showed a distinct worsening over time, and the severity of bubbles in the lateral line was highly correlated with mortality. When fish were exposed to 130% TDG for up to 11 h, LT sub(20)s for chinook salmon ranged from 3 to 6 h, whereas those for steelhead ranged from 5 to 7 h. In chinook salmon, bubbles in the lateral line and fins, but not those in the gills, showed distinct trends of worsening over time. In steelhead, bubbles in the lateral line displayed the most significant trend of progressive severity. In both species at 130% TDG, the severity of all GBT signs was highly correlated with mortality. The progressive nature of GBT and the methods we developed to examine fish for GBT may be useful for monitoring programs that aim to assess the severity of dissolved gas supersaturation exposures experienced by fish in the wild. However, the efficacy of such programs seems substantially hindered by problems associated with (1) the variable persistence of GBT signs; (2) the inconsistent relation of GBT signs to mortality; (3) the insufficient knowledge of the relation between exposure history and GBT sign development for fish in the wild; and (4) an extreme amount of interindividual variation in terms of susceptibility to GBT. JF - Transactions of the American Fisheries Society AU - Mesa, M G AU - Weiland, L K AU - Maule, A G AD - U.S. Geological Survey, Biological Resources Division, Columbia River Research Laboratory, 5501A Cook-Underwood Road, Cook, Washington 98605, USA, matt_mesa@usgs.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 174 EP - 185 VL - 129 IS - 1 SN - 0002-8487, 0002-8487 KW - Chinook salmon KW - Rainbow trout KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Mortality KW - Gases KW - Fish diseases KW - Fish physiology KW - Oncorhynchus mykiss KW - Freshwater KW - Oncorhynchus tshawytscha KW - Mortality causes KW - Bubble disease KW - Q1 08346:Physiology, biochemistry, biophysics KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17481461?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Progression+and+Severity+of+Gas+Bubble+Trauma+in+Juvenile+Salmonids&rft.au=Mesa%2C+M+G%3BWeiland%2C+L+K%3BMaule%2C+A+G&rft.aulast=Mesa&rft.aufirst=M&rft.date=2000-01-01&rft.volume=129&rft.issue=1&rft.spage=174&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Fish diseases; Fish physiology; Mortality causes; Bubble disease; Mortality; Gases; Oncorhynchus mykiss; Oncorhynchus tshawytscha; Freshwater ER - TY - JOUR T1 - Lead poisoning of passerines at a trap and skeet range AN - 17479228; 4675194 AB - Our objective was to determine if ground foraging passerines in a woodland surrounding a trap and skeet range were subject to lead poisoning. Lead availability to birds was determined by shot counts and soil and earthworm analysis. Avian exposure to lead was identified by measuring free-erythrocyte protoporphyrin levels in blood and lead in tissues of three passerine species. Results showed that most shot were found in the top 3 cm of soil. Lead measurements ranged from 110 to 27,000 ppm (dry wt) in soil and were 660 and 840 ppm in earthworms. Sparrows held in an aviary at the range (p = 0.02) and free-flying juncos (p = 0.0005) mistnetted at the range displayed significantly higher protoporphyrin levels than those at an uncontaminated site. Sparrow and cowbird carcasses from the aviary carried 37 and 39 ppm lead (dry wt), respectively, whereas a junco liver contained 9.3 ppm lead. JF - Environmental Pollution AU - Vyas, N B AU - Spann, J W AU - Heinz, G H AU - Beyer, W N AU - Jaquette, JA AU - Mengelkoch, J M AD - US Geological Survey, Patuxent Wildlife Research Center, 11510 American Holly Drive, Laurel, MD 20708, USA, nimish_vyas@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 159 EP - 166 VL - 107 IS - 1 SN - 0269-7491, 0269-7491 KW - firing ranges KW - ammunition KW - Birds KW - passerines KW - Oligochaeta KW - munitions KW - protoporphyrin KW - Toxicology Abstracts; Pollution Abstracts KW - Tissues KW - Erythrocytes KW - Poisoning KW - Soil contamination KW - Lead KW - Soil pollution KW - Aves KW - Blood KW - Shotgun pellets KW - X 24166:Environmental impact KW - P 5000:LAND POLLUTION KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17479228?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Pollution&rft.atitle=Lead+poisoning+of+passerines+at+a+trap+and+skeet+range&rft.au=Vyas%2C+N+B%3BSpann%2C+J+W%3BHeinz%2C+G+H%3BBeyer%2C+W+N%3BJaquette%2C+JA%3BMengelkoch%2C+J+M&rft.aulast=Vyas&rft.aufirst=N&rft.date=2000-01-01&rft.volume=107&rft.issue=1&rft.spage=159&rft.isbn=&rft.btitle=&rft.title=Environmental+Pollution&rft.issn=02697491&rft_id=info:doi/10.1016%2FS0269-7491%2899%2900112-8 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; Lead; Poisoning; Soil contamination; Tissues; Blood; Erythrocytes; Shotgun pellets; Soil pollution DO - http://dx.doi.org/10.1016/S0269-7491(99)00112-8 ER - TY - JOUR T1 - Age- and sex-specific mortality and population structure in sea otters AN - 17471851; 4677551 AB - We used 742 beach-cast carcasses to characterize age- and sex-specific sea otter mortality during the winter of 1990-1991 at Bering Island, Russia. We also examined 363 carcasses recovered after the 1989 grounding of the T/V Exxon Valdez, to characterize age and sex composition in the living western Prince William Sound (WPWS) sea otter population. At Bering Island, mortality was male-biased (81%), and 75% were adults. The WPWS population was female-biased (59%) and most animals were subadult (79% of the males and 45% of the females). In the decade prior to 1990-1991 we found increasing sea otter densities (particularly among males), declining prey resources, and declining weights in adult male sea otters at Bering Island. Our findings suggest the increased mortality at Bering Island in 1990-1991 was a density-dependent population response. We propose male-maintained breeding territories and exclusion of juvenile females by adult females, providing a mechanism for maintaining densities in female areas below densities in male areas and for potentially moderating the effects of prey reductions on the female population. Increased adult male mortality at Bering Island in 1990-1991 likely modified the sex and age class structure there toward that observed in Prince William Sound. JF - Marine Mammal Science AU - Bodkin, J L AU - Burdin, A M AU - Ryazanov, DA AD - US Geological Survey, Alaska Biological Science Center, 1011 E. Tudor Road, Anchorage, Alaska 99503, USA, james_bodkin@usgs.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 201 EP - 219 VL - 16 IS - 1 SN - 0824-0469, 0824-0469 KW - Russia KW - Sea otter KW - USA, Alaska KW - marine mammals KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources; Oceanic Abstracts KW - Marine KW - Mortality KW - Age composition KW - INW, Russia, Khabarovskiy, Komandorskiye Is., Bering I. KW - Sex ratio KW - Density dependence KW - Population density KW - Population dynamics KW - Enhydra lutris KW - Marine fauna KW - Carcasses KW - Population structure KW - Territoriality KW - INE, USA, Alaska, Alaska Gulf, Prince William Sound KW - Q1 08441:Population structure KW - D 04672:Mammals KW - O 1050:Vertebrates, Urochordates and Cephalochordates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17471851?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Mammal+Science&rft.atitle=Age-+and+sex-specific+mortality+and+population+structure+in+sea+otters&rft.au=Bodkin%2C+J+L%3BBurdin%2C+A+M%3BRyazanov%2C+DA&rft.aulast=Bodkin&rft.aufirst=J&rft.date=2000-01-01&rft.volume=16&rft.issue=1&rft.spage=201&rft.isbn=&rft.btitle=&rft.title=Marine+Mammal+Science&rft.issn=08240469&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Mortality; Age composition; Carcasses; Sex ratio; Density dependence; Population density; Population structure; Population dynamics; Territoriality; Marine fauna; Enhydra lutris; INW, Russia, Khabarovskiy, Komandorskiye Is., Bering I.; INE, USA, Alaska, Alaska Gulf, Prince William Sound; Marine ER - TY - JOUR T1 - Predators as prey at a Golden Eagle Aquila chrysaetos eyrie in Mongolia AN - 17448810; 4664241 JF - Ibis AU - Ellis, D H AU - Tsengeg, P AU - Whitlock, P AU - Ellis, M H AD - USGS Patuxent Wildlife Research Center, HCR 1 Box 4420, Oracle, AZ 85623 USA, david_h_ellis@usgs.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 141 EP - 142 VL - 142 IS - 1 SN - 0019-1019, 0019-1019 KW - Golden eagle KW - Mongolia KW - Ecology Abstracts KW - Predation KW - Aquila chrysaetos KW - Birds of prey KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17448810?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ibis&rft.atitle=Predators+as+prey+at+a+Golden+Eagle+Aquila+chrysaetos+eyrie+in+Mongolia&rft.au=Ellis%2C+D+H%3BTsengeg%2C+P%3BWhitlock%2C+P%3BEllis%2C+M+H&rft.aulast=Ellis&rft.aufirst=D&rft.date=2000-01-01&rft.volume=142&rft.issue=1&rft.spage=141&rft.isbn=&rft.btitle=&rft.title=Ibis&rft.issn=00191019&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aquila chrysaetos; Birds of prey; Predation ER - TY - JOUR T1 - Reactive transport of metal contaminants in alluvium--model comparison and column simulation AN - 17435739; 4652071 AB - A comparative assessment of two reactive-transport models, PHREEQC and HYDROGEOCHEM (HGC), was done to determine the suitability of each for simulating the movement of acidic contamination in alluvium. For simulations that accounted for aqueous complexation, precipitation and dissolution, the breakthrough and rinseout curves generated by each model were similar. The differences in simulated equilibrium concentrations between models were minor and were related to (1) different units in model output, (2) different activity coefficients, and (3) ionic-strength calculations. When adsorption processes were added to the models, the rinseout pH simulated by PHREEQC using the diffuse double-layer adsorption model rose to a pH of 6 after pore volume 15, about 1 pore volume later than the pH simulated by HGC using the constant-capacitance model. In PHREEQC simulation of a laboratory column experiment, the inability of the model to match measured outflow concentrations of selected constituents was related to the evident lack of local geochemical equilibrium in the column. The difference in timing and size of measured and simulated breakthrough of selected constituents indicated that the redox and adsorption reactions in the column occurred slowly when compared with the modeled reactions. MINTEQA2 and PHREEQC simulations of the column experiment indicated that the number of surface sites that took part in adsorption reactions was less than that estimated from the measured concentration of Fe hydroxide in the alluvium. JF - Applied Geochemistry AU - Brown, J G AU - Bassett, R L AU - Glynn, P D AD - U.S. Geological Survey, Tucson, Arizona, USA, jgbrown@usgs.gov Y1 - 2000/01// PY - 2000 DA - Jan 2000 SP - 35 EP - 49 VL - 15 IS - 1 SN - 0883-2927, 0883-2927 KW - dissolution KW - Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Path of Pollutants KW - Pollution dispersion KW - Freshwater KW - Alluvial deposits KW - Iron Compounds KW - Chemical Precipitation KW - Iron compounds KW - Acidification KW - pH effects KW - pH KW - Metals KW - Geochemistry KW - Hydrogen Ion Concentration KW - Precipitation KW - Chemical precipitation KW - Adsorption KW - Dissolution KW - Alluvium KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17435739?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Geochemistry&rft.atitle=Reactive+transport+of+metal+contaminants+in+alluvium--model+comparison+and+column+simulation&rft.au=Brown%2C+J+G%3BBassett%2C+R+L%3BGlynn%2C+P+D&rft.aulast=Brown&rft.aufirst=J&rft.date=2000-01-01&rft.volume=15&rft.issue=1&rft.spage=35&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Metals; Chemical precipitation; Pollution dispersion; Geochemistry; Iron compounds; Adsorption; Dissolution; Acidification; Alluvial deposits; pH effects; Precipitation; pH; Iron Compounds; Path of Pollutants; Chemical Precipitation; Hydrogen Ion Concentration; Alluvium; Freshwater ER - TY - JOUR T1 - Molecular analysis of population genetic structure and recolonization of rainbow trout following the Cantara Spill AN - 17081789; 6707679 AB - Mitochondrial DNA (mtDNA) sequence and allelic frequency data for 12 microsatellite loci were used to analyze population genetic structure and recolonization by rainbow trout, Oncorhynchus mykiss, following the 1991 Cantara spill on the upper Sacramento River, California. Genetic analyses were performed on 1,016 wild rainbow trout collected between 1993 and 1996 from the mainstem and in 8 tributaries. Wild trout genotypes were compared to genotypes for 79 Mount Shasta Hatchery rainbow trout. No genetic heterogeneity was found 2 years after the spill (1993) between tributary populations and geographically proximate mainstem fish, suggesting recolonization of the upper mainstem directly from adjacent tributaries. Trout collections made in 1996 showed significant year-class genetic variation for mtDNA and microsatellites when compared to fish from the same locations in 1993. Five years after the spill, mainstem populations appeared genetically mixed with no significant allelic frequency differences between mainstem populations and geographically proximate tributary trout. In our 1996 samples, we found no significant genetic differences due to season of capture (summer or fall) or sampling technique used to capture rainbow trout, with the exception of trout collected by electrofishing and hook and line near Prospect Avenue. JF - California Fish and Game AU - Nielsen, J L AU - Heine, EL AU - Gan, CA AU - Fountain, M C AD - U.S. Geological Survey, Biological Resources Division, Alaska Biological Science Center, 1011 East Tudor Road, Anchorage, AK 99503, USA, jennifer_nielsen@usgs.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 21 EP - 40 VL - 86 IS - 1 SN - 0008-1078, 0008-1078 KW - Rainbow trout KW - Genetics Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Genetic analysis KW - Year class KW - Genetic diversity KW - Genotypes KW - Freshwater KW - Freshwater fish KW - Population dynamics KW - Population genetics KW - USA, California, Sacramento R. KW - Sampling KW - Heterogeneity KW - Tributaries KW - Salmon KW - Rivers KW - Data processing KW - Recolonization KW - Microsatellites KW - Environmental impact KW - Oncorhynchus mykiss KW - Herbicides KW - Water pollution KW - Hatcheries KW - Mitochondrial DNA KW - Trout KW - Structure KW - Fish KW - Fish Populations KW - SW 0835:Streamflow and runoff KW - G 07750:Ecological & Population Genetics KW - Q5 08504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17081789?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=California+Fish+and+Game&rft.atitle=Molecular+analysis+of+population+genetic+structure+and+recolonization+of+rainbow+trout+following+the+Cantara+Spill&rft.au=Nielsen%2C+J+L%3BHeine%2C+EL%3BGan%2C+CA%3BFountain%2C+M+C&rft.aulast=Nielsen&rft.aufirst=J&rft.date=2000-01-01&rft.volume=86&rft.issue=1&rft.spage=21&rft.isbn=&rft.btitle=&rft.title=California+Fish+and+Game&rft.issn=00081078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-10-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Population genetics; Environmental impact; Year class; Herbicides; Genotypes; Population dynamics; Freshwater fish; Tributaries; Water pollution; Rivers; Hatcheries; Mitochondrial DNA; Data processing; Genetic analysis; Recolonization; Microsatellites; Genetic diversity; Sampling; Salmon; Trout; Structure; Fish; Fish Populations; Heterogeneity; Oncorhynchus mykiss; USA, California, Sacramento R.; Freshwater ER - TY - JOUR T1 - Geochemical heterogeneity of a gasoline-contaminated aquifer AN - 20829494; 4658551 AB - The scale of biogeochemical reactions was studied in a physically and chemically heterogeneous surficial Coastal Plain aquifer contaminated by a gasoline spill. The physical heterogeneity of the aquifer is manifested in two hydrologic units, a shallow local aquifer of perched water and a regional sandy aquifer. Over the studied vertical interval of 21.3 ft (6.5 m), concentrations of reactive species varied by orders of magnitude, and the impact of biodegradation was expressed to widely varying degrees. A thin (3 ft thick) section of the perched-water zone was the most contaminated; total aromatic hydrocarbons were as high as 19.4 mg/l. Hydrocarbons were degraded by microbially mediated reactions that varied over short vertical distances and time. Anaerobic processes dominated within the low-permeability clay unit, whereas in the more permeable sandy layers nitrate reduction and aerobic degradation occurred. Hydrocarbons were more persistent over time in the low-permeability layer due to the limited availability of electron acceptors for degradation. The microbial degradation of hydrocarbons was linked to sulfate and iron reduction in the clay unit and led to alterations in the aquifer solids; electron microscopy revealed the presence of FeS minerals encrusting primary aquifer grains. High concentrations of Fe super(2+) in groundwater, up to 34.5 mg/l, persist in kinetic disequilibrium in the presence of elevated H sub(2)S levels of 1.0 mg/l. Assessment of aquifer heterogeneities and groundwater contamination was possible due to sample discrimination at a scale of approximately 2 ft ( similar to 0.6 m), a much finer resolution than is attempted in many remedial investigations of polluted aquifers. The information obtained in this type of study is essential to the development of models capable of estimating the fate of hydrocarbons at a site scale. JF - Journal of Contaminant Hydrology AU - Cozzarelli, I M AU - Herman, J S AU - Baedecker, MJ AU - Fischer, J M AD - U.S. Geological Survey, 431 National Center, 12201 Sunrise Valley Drive, Reston, VA 20192, USA, icozzare@usgs.gov Y1 - 1999/12/15/ PY - 1999 DA - 1999 Dec 15 SP - 261 EP - 284 VL - 40 IS - 3 SN - 0169-7722, 0169-7722 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Aquifers KW - Biodegradation KW - Contamination KW - Water Pollution Sources KW - Gasoline KW - Groundwater Pollution KW - Freshwater KW - Clays KW - Models KW - Permeability KW - Ground water KW - Aromatic hydrocarbons KW - Hydrology KW - Electron microscopy KW - Oil spills KW - Hydrocarbons KW - Biogeochemistry KW - Hydrogen sulfide KW - Pollution surveys KW - Sulfate KW - Nitrate reduction KW - Kinetics KW - Microorganisms KW - Grain KW - Groundwater pollution KW - Contaminants KW - Iron KW - Minerals KW - Petroleum hydrocarbons KW - Q5 08503:Characteristics, behavior and fate KW - A 01450:Environmental Pollution & Waste Treatment KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20829494?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=Geochemical+heterogeneity+of+a+gasoline-contaminated+aquifer&rft.au=Cozzarelli%2C+I+M%3BHerman%2C+J+S%3BBaedecker%2C+MJ%3BFischer%2C+J+M&rft.aulast=Cozzarelli&rft.aufirst=I&rft.date=1999-12-15&rft.volume=40&rft.issue=3&rft.spage=261&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/10.1016%2FS0169-7722%2899%2900050-9 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-05-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Biogeochemistry; Groundwater pollution; Pollution surveys; Oil spills; Petroleum hydrocarbons; Aquifers; Biodegradation; Contamination; Hydrocarbons; Gasoline; Hydrogen sulfide; Sulfate; Models; Clays; Nitrate reduction; Kinetics; Grain; Ground water; Hydrology; Aromatic hydrocarbons; Contaminants; Minerals; Iron; Electron microscopy; Permeability; Water Pollution Sources; Microorganisms; Groundwater Pollution; Freshwater DO - http://dx.doi.org/10.1016/S0169-7722(99)00050-9 ER - TY - JOUR T1 - Temporal trends of bulk precipitation and stream water chemistry (1977-1997) in a small forested area, Krusne hory, northern Bohemia, Czech Republic AN - 17589102; 4669138 AB - The Krusne hory (Erzgebirge or Ore Mountains) has been heavily affected by high atmospheric pollutant deposition caused by fossil fuel combustion in an adjacent Tertiary coal basin. Long-term routine sampling of bulk precipitation (1977-1996) and stream water (1977-1998) in a forested area on the south-eastern slope of the mountains were used to evaluate trends and patterns in solute concentration and flux with respect to controlling processes. From 1977 to 1996, the annual volume-weighted Ca super(2+) and SO super(2) sub(4) super(-) concentrations decreased in bulk precipitation. However, after 1989, when a pronounced and continuous decrease occurred in coal production, annual volume-weighted concentrations decreased for most solutes, except H super(+). The concentration decreases were marked, with 1996 levels at or below 50% of those in 1989. The lack of a trend in H super(+) is attributed to similar decreases in both acid anions and neutralizing base cations. Stream water concentrations of most solutes, i.e. H super(+), Ca super(2+), Mg super(2+), SO super(2) sub(4) super(-) and NO super(-) sub(3), were highest at the onset of sampling in 1977, decreased markedly from 1977 to 1983 and decreased more gradually from 1983 to 1998. The spruce forest die-back and removal reduced dry deposition of these solutes by reducing the filtering action, which was provided by the forest canopy. A notable decrease in stream water Ca super(2+) concentrations occurred after 1995 and may be due to the depletion of Ca super(2+), which was provided by catchment liming in 1986, 1988 and 1989. Solute flux trends in bulk atmospheric deposition and stream water generally were not significant and the lack of trend is attributed to the large interannual variability in precipitation quantity and runoff, respectively. All solutes except Na super(+) varied seasonally. The average seasonal concentrations varied between the solutes, but for most solutes were highest in winter and spring and lowest in summer, correlating with the seasonal trend in runoff. For Ca super(2+), Mg super(2+) and SO super(2) sub(4) super(-), the concentration minimum occurs in September and the maximum occurs in February or March, correlating with the seasonal baseflow. These solutes are primarily controlled by the contribution of soil water and groundwater to stream flow. During snowmelt, the meltwater generally causes concentrations to decrease as soil water and groundwater are diluted. For NO sub(3), average minimum concentrations occur in August at the end of the growing season concurrent with the lowest stream flow, and the maximum occurs in February and March with high stream flow during snowmelt. Seasonal stream water NO super(-) sub(3) concentration variations are large compared with the long-term decrease. JF - Hydrological Processes AU - Peters, N E AU - Cerny, J AU - Havel, M AU - Krejci, R AD - US Geological Survey, Suite 130, 3039 Amwiler Road, Atlanta, Georgia 30360-2824, USA, nepeters@usgs.gov Y1 - 1999/12/15/ PY - 1999 DA - 1999 Dec 15 SP - 2721 EP - 2741 PB - John Wiley & Sons, Ltd. VL - 13 IS - 17 SN - 0885-6087, 0885-6087 KW - ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Catchment area KW - Atmospheric precipitations KW - Anions KW - Melt water KW - Geochemistry KW - Catchment Areas KW - Precipitation KW - Coal KW - Freshwater KW - Streams KW - Water analysis KW - Water pollution KW - Stream flow KW - Air pollution KW - Solutes KW - Cations KW - Czech Rep., Bohemia KW - Water samples KW - Neutralization KW - Seasonal variations KW - Runoff KW - Air-water exchanges KW - SW 0880:Chemical processes KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17589102?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrological+Processes&rft.atitle=Temporal+trends+of+bulk+precipitation+and+stream+water+chemistry+%281977-1997%29+in+a+small+forested+area%2C+Krusne+hory%2C+northern+Bohemia%2C+Czech+Republic&rft.au=Peters%2C+N+E%3BCerny%2C+J%3BHavel%2C+M%3BKrejci%2C+R&rft.aulast=Peters&rft.aufirst=N&rft.date=1999-12-15&rft.volume=13&rft.issue=17&rft.spage=2721&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=08856087&rft_id=info:doi/10.1002%2F%28SICI%291099-1085%2819991215%2913%3A173.3.CO%3B2-W LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Air pollution; Atmospheric precipitations; Catchment area; Solutes; Melt water; Water samples; Coal; Seasonal variations; Water analysis; Water pollution; Air-water exchanges; Stream flow; Anions; Cations; Catchment Areas; Geochemistry; Precipitation; Neutralization; Streams; Runoff; Czech Rep., Bohemia; Freshwater DO - http://dx.doi.org/10.1002/(SICI)1099-1085(19991215)13:17<2721::AID-HYP844>3.3.CO;2-W ER - TY - JOUR T1 - The role of stress transfer in earthquake occurrence AN - 17426134; 4646076 AB - An earthquake alters the shear and normal stress on surrounding faults. New evidence strengthens the hypothesis that such small, sudden stress changes cause large changes in seismicity rate. Rates climb where the stress increases (aftershocks) and fall where the stress drops. Both increases and decreases in seismicity rate are followed by a time-dependent recovery. When stress change is translated into probability change, seismic hazard is seen to be strongly influenced by earthquake interaction. JF - Nature AU - Stein, R S AD - US Geological Survey, MS 977, Menlo Park, CA 94025, USA, rstein@usgs.gov Y1 - 1999/12/09/ PY - 1999 DA - 1999 Dec 09 SP - 605 EP - 609 PB - Macmillan Journals Ltd. VL - 402 IS - 6762 SN - 0028-0836, 0028-0836 KW - faults KW - natural disasters KW - Risk Abstracts; Health & Safety Science Abstracts KW - Earthquakes KW - Stress KW - Hazards KW - Seismic activity KW - H 6000:Natural Disasters/Civil Defense/Emergency Management KW - R2 23030:Natural hazards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17426134?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature&rft.atitle=The+role+of+stress+transfer+in+earthquake+occurrence&rft.au=Stein%2C+R+S&rft.aulast=Stein&rft.aufirst=R&rft.date=1999-12-09&rft.volume=402&rft.issue=6762&rft.spage=605&rft.isbn=&rft.btitle=&rft.title=Nature&rft.issn=00280836&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Earthquakes; Seismic activity; Hazards; Stress ER - TY - JOUR T1 - The potential for free and mixed convection in sedimentary basins AN - 860392225; 14382359 AB - Free thermal convection and mixed convection are considered as potential mechanisms for mass and heat transport in sedimentary basins. Mixed convection occurs when horizontal flows (forced convection) are superimposed on thermally driven flows. In cross section, mixed convection is characterized by convection cells that migrate laterally in the direction of forced convective flow. Two-dimensional finite-element simulations of variable-density groundwater flow and heat transport in a horizontal porous layer were performed to determine critical mean Rayleigh numbers for the onset of free convection, using both isothermal and semi-conductive boundaries. Additional simulations imposed a varying lateral fluid flux on the free-convection pattern. Results from these experiments indicate that forced convection becomes dominant, completely eliminating buoyancy-driven circulation, when the total forced-convection fluid flux exceeds the total flux possible due to free convection. Calculations of the thermal rock alteration index (RAI=q.T) delineate the patterns of potential diagenesis produced by fluid movement through temperature gradients. Free convection produces a distinct pattern of alternating positive and negative RAIs, whereas mixed convection produces a simpler layering of positive and negative values and in general less diagenetic alteration.Original Abstract: La convection thermale libre et la convection mixte sont considerees comme les mecanismes potentiels de transport de matiere et de chaleur dans les bassins sedimentaires. La convection mixte se produit lorsque des ecoulements horizontaux (convection forcee) se surimposent a des ecoulements commandes par les temperatures. En section transversale, la convection mixte est caracterisee par des cellules de convection qui se deplacent lateralement dans la direction de l'ecoulement convectif force. Des simulations 2D par elements finis de l'ecoulement d'eaux souterraines de densites variables et du transport de chaleur dans une couche poreuse horizontale ont ete realisees afin de determiner les valeurs moyennes critiques du nombre de Rayleigh dans le cas de la convection libre, en utilisant des limites a la fois isothermes et semi-permeables. Des simulations supplementaires ont impose un flux lateral variable de fluide sur un fonctionnement d'ensemble en convection libre. Les resultats de ces experiences indiquent que la convection forcee devient predominante, eliminant completement l'ecoulement commande par les differences de densite, lorsque le flux total de fluide soumis a la convection forcee devient superieur au flux total possible dua la convection libre. Les calculs d'indice d'alteration thermal de la roche (RAI=qT) definissent les grandes lignes de la diagenese potentielle produite par les mouvements du fluide sous l'effet des gradients de temperature. La convection libre produit une distribution particuliere de valeurs de RAI alternativement positives et negatives, alors que la convection mixte produit une simple succession de couches positives et negatives, et en general une moindre alteration diagenetique. JF - Hydrogeology Journal AU - Raffensperger, J P AU - Vlassopoulos, D AD - US Geological Survey, 8987 Yellow Brick Road, Baltimore, MD 21237, USA Fax: +1-410-238-4210, jpraffen@usgs.gov Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 505 EP - 520 PB - Springer-Verlag, P.O. Box 2485 Secaucus NJ 07096-2485 USA VL - 7 IS - 6 SN - 1431-2174, 1431-2174 KW - Water Resources Abstracts; Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Convection KW - Thermal convection KW - Convection development KW - Temperature Gradient KW - Sedimentary basins KW - Forced convection KW - Cellular convection KW - Buoyancy KW - Heat transport KW - Sedimentary Basins KW - Temperature effects KW - Heat flux KW - Atmospheric circulation KW - Temperature gradients KW - Numerical simulations KW - Heat KW - Convective activity KW - Boundaries KW - Fluctuations KW - Groundwater Movement KW - Diagenesis KW - AQ 00001:Water Resources and Supplies KW - Q2 09264:Sediments and sedimentation KW - SW 0870:Erosion and sedimentation KW - M2 556.34:Groundwater Flow (556.34) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/860392225?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrogeology+Journal&rft.atitle=The+potential+for+free+and+mixed+convection+in+sedimentary+basins&rft.au=Raffensperger%2C+J+P%3BVlassopoulos%2C+D&rft.aulast=Raffensperger&rft.aufirst=J&rft.date=1999-12-01&rft.volume=7&rft.issue=6&rft.spage=505&rft.isbn=&rft.btitle=&rft.title=Hydrogeology+Journal&rft.issn=14312174&rft_id=info:doi/10.1007%2Fs100400050224 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Temperature effects; Convection; Cellular convection; Temperature gradients; Forced convection; Sedimentary basins; Diagenesis; Heat transport; Heat flux; Numerical simulations; Thermal convection; Convective activity; Atmospheric circulation; Convection development; Buoyancy; Sedimentary Basins; Heat; Boundaries; Groundwater Movement; Temperature Gradient; Fluctuations DO - http://dx.doi.org/10.1007/s100400050224 ER - TY - JOUR T1 - Tritium and plutonium in waters from the Bering and Chukchi seas. AN - 69285619; 10568546 AB - During the summer of 1993, seawater in the Bering and Chukchi Seas was sampled on a joint Russian-American cruise [BERPAC] of the RV Okean to determine concentrations of tritium, 239Pu and 240Pu. Concentrations of tritium were determined by electrolytic enrichment and liquid scintillation counting. Tritium levels ranged up to 420 mBq L(-1) and showed no evidence of inputs other than those attributed to atmospheric nuclear weapons testing. Plutonium was recovered from water samples by ferric hydroxide precipitation, and concentrations were determined by thermal ionization mass spectrometry. 239+240Pu concentrations ranged from < 1 to 5.5 microBq L(-1). These concentrations are lower than those measured in water samples from other parts of the ocean during the mid-1960's to the late 1980's. The 240Pu:239Pu ratios, although associated with large uncertainties, suggest that most of the plutonium is derived from world-wide fallout. As points of comparison, the highest concentrations of tritium and plutonium observed here were about five orders of magnitude lower than the maximum permissible concentrations allowed in water released to the off-site environs from licensed nuclear facilities in the United States. This study and others sponsored by the International Atomic Energy Agency and the Office of Naval Research's Arctic Nuclear Waste Assessment Program are providing data for the assessment of potential radiological impacts in the Arctic regions associated with nuclear waste disposal by the former Soviet Union. JF - Health physics AU - Landa, E R AU - Beals, D M AU - Halverson, J E AU - Michel, R L AU - Cefus, G R AD - U.S. Geological Survey, Reston, VA 20192, USA. erlanda@usgs.gov Y1 - 1999/12// PY - 1999 DA - December 1999 SP - 668 EP - 676 VL - 77 IS - 6 SN - 0017-9078, 0017-9078 KW - Radioactive Waste KW - 0 KW - Water Pollutants, Radioactive KW - Tritium KW - 10028-17-8 KW - Plutonium KW - 53023GN24M KW - Index Medicus KW - Oceans and Seas KW - Water Pollution, Radioactive KW - Russia KW - Radiation Monitoring KW - USSR KW - Water Pollutants, Radioactive -- analysis KW - Seawater -- analysis KW - Tritium -- analysis KW - Plutonium -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69285619?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Tritium+and+plutonium+in+waters+from+the+Bering+and+Chukchi+seas.&rft.au=Landa%2C+E+R%3BBeals%2C+D+M%3BHalverson%2C+J+E%3BMichel%2C+R+L%3BCefus%2C+G+R&rft.aulast=Landa&rft.aufirst=E&rft.date=1999-12-01&rft.volume=77&rft.issue=6&rft.spage=668&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-12-02 N1 - Date created - 1999-12-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Assessing trail conditions in protected areas: application of a problem-assessment method in Great Smoky Mountains National Park, USA AN - 19921190; 4696513 AB - The degradation of trail resources associated with expanding recreation and tourism visitation is a growing management problem in protected areas worldwide. In order to make judicious trail and visitor management decisions, protected area managers need objective and timely information on trail resource conditions. This paper introduces a trail survey method that efficiently characterizes the location and lineal extent of common trail problems. The method was applied to a large sample of trails within Great Smoky Mountains National Park, a high-use protected area in the USA. The Trail Problem-Assessment Method (TPAM) employs a continuous search for multiple indicators of pre-defined tread problems, yielding census data documenting the location, occurrence and extent of each problem. The present application employed 23 different indicators in three categories to gather inventory, resource condition, and design and maintenance data of each surveyed trail. Seventy-two backcountry hiking trails (528 km), or 35% of the Park's total trail length, were surveyed. Soil erosion and wet soil were found to be the two most common impacts on a lineal extent basis. Trails with serious tread problems were well distributed throughout the Park, although trails with wet muddy treads tended to be concentrated in areas where horse use was high. The effectiveness of maintenance features installed to divert water from trail treads was also evaluated. Water bars were found to be more effective than drainage dips. The TPAM was able to provide Park managers with objective and quantitative information for use in trail planning, management and maintenance decisions, and is applicable to other protected areas elsewhere with different environmental and impact characteristics. JF - Environmental Conservation AU - Leung, Y-F AU - Marion, J L AD - USGS Patuxent Wildlife Research Center, Virginia Tech Cooperative Park Studies Unit (0324), 304 Cheatham Hall, Blacksburg, Virginia 24061, USA, cpsu@vt.edu Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 270 EP - 279 VL - 26 IS - 4 SN - 0376-8929, 0376-8929 KW - USA, North Carolina KW - USA, Tennessee KW - Sustainability Science Abstracts; Pollution Abstracts; Ecology Abstracts; Human Population KW - Environmental degradation KW - Tourism KW - Recreation sites KW - National parks KW - Land use KW - Human impact KW - Recreation KW - Recreation areas KW - Human factors KW - Population-environment relations KW - Environment management KW - M1 320:Environmental & Natural Resource Development KW - M3 1010:Issues in Sustainable Development KW - P 5000:LAND POLLUTION KW - D 04712:Environmental degradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19921190?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Conservation&rft.atitle=Assessing+trail+conditions+in+protected+areas%3A+application+of+a+problem-assessment+method+in+Great+Smoky+Mountains+National+Park%2C+USA&rft.au=Leung%2C+Y-F%3BMarion%2C+J+L&rft.aulast=Leung&rft.aufirst=Y-F&rft.date=1999-12-01&rft.volume=26&rft.issue=4&rft.spage=270&rft.isbn=&rft.btitle=&rft.title=Environmental+Conservation&rft.issn=03768929&rft_id=info:doi/10.1017%2FS0376892999000399 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-08-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Tourism; Environmental degradation; Recreation; Recreation sites; National parks; Population-environment relations; Environment management; Land use; Human impact; Recreation areas; Human factors DO - http://dx.doi.org/10.1017/S0376892999000399 ER - TY - JOUR T1 - Influence of various water quality sampling strategies on load estimates for small streams AN - 17873546; 5108952 AB - Extensive streamflow and water quality data from eight small streams were systematically subsampled to represent various water-quality sampling strategies. The subsampled data were then used to determine the accuracy and precision of annual load estimates generated by means of a regression approach (typically used for big rivers) and to determine the most effective sampling strategy for small streams. Estimation of annual loads by regression was imprecise regardless of the sampling strategy used; for the most effective strategy, median absolute errors were similar to 30% based on the load estimated with an integration method and all available data, if a regression approach is used with daily average streamflow. The most effective sampling strategy depends on the length of the study. For 1-year studies, fixed-period monthly sampling supplemented by storm chasing was the most effective strategy. For studies of 2 or more years, fixed-period semimonthly sampling resulted in not only the least biased but also the most precise loads. Additional high-flow samples, typically collected to help define the relation between high streamflow and high loads, result in imprecise, overestimated annual loads if these samples are consistently collected early in high-flow events. JF - Water Resources Research AU - Robertson, D M AU - Roerish, ED AD - Water Resources Division, USGS, Middleton, Wisconsin, USA Y1 - 1999/12// PY - 1999 DA - December 1999 SP - 3747 EP - 3759 VL - 35 IS - 12 SN - 0043-1397, 0043-1397 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts KW - Flow KW - Regression Analysis KW - Water Sampling KW - Water quality KW - Streams KW - Comparative studies KW - Data Acquisition KW - Stream flow rate KW - Regression analysis KW - Sampling KW - Data Interpretation KW - Annual Distribution KW - Data acquisition KW - Data Collections KW - Annual variations KW - Water Quality KW - Data collections KW - Streams (in natural channels) KW - Stream flow KW - Comparison Studies KW - High Flow KW - Load Distribution KW - Water samples KW - Water quality (Natural waters) KW - SW 5010:Network design KW - SW 0835:Streamflow and runoff KW - Q2 09182:Methods and instruments KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17873546?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Influence+of+various+water+quality+sampling+strategies+on+load+estimates+for+small+streams&rft.au=Robertson%2C+D+M%3BRoerish%2C+ED&rft.aulast=Robertson&rft.aufirst=D&rft.date=1999-12-01&rft.volume=35&rft.issue=12&rft.spage=3747&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Annual variations; Regression analysis; Water samples; Stream flow rate; Sampling; Data collections; Water quality; Data acquisition; Stream flow; Flow; Comparative studies; Streams (in natural channels); Water quality (Natural waters); Regression Analysis; Data Acquisition; Comparison Studies; High Flow; Water Sampling; Water Quality; Load Distribution; Data Interpretation; Streams; Annual Distribution; Data Collections ER - TY - JOUR T1 - Volatile Organic Compounds in Untreated Ambient Groundwater of the United States, 1985-1995 AN - 17596437; 4694562 AB - As part of the National Water-Quality Assessment Program of the U.S. Geological Survey, an assessment of 60 volatile organic compounds (VOCs) in untreated, ambient groundwater of the conterminous United States was conducted based on samples collected from 2948 wells between 1985 and 1995. The samples represent urban and rural areas and drinking-water and nondrinking-water wells. A reporting level of 0.2 mu g/L was used with the exception of 1,2-dibromo-3-chloropropane, which had a reporting level of 1.0 mu g/L. Because ambient groundwater was targeted, areas of known point-source contamination were excluded from this assessment. VOC concentrations generally were low; 56% of the concentrations were less than 1 mu g/L. In urban areas, 47% of the sampled wells had at least one VOC, and 29% had two or more VOCs; furthermore, U.S. Environmental Protection Agency drinking-water criteria were exceeded in 6.4% of all sampled wells and in 2.5% of the sampled drinking-water wells. In rural areas, 14% of the sampled wells had at least one VOC; furthermore, drinking-water criteria were exceeded in 1.5% of all sampled wells and in 1.3% of the sampled drinking-water wells. Solvent compounds and the fuel oxygenate methyl tert-butyl ether were among the most frequently detected VOCs in urban and rural areas. It was determined that the probability of finding VOCs in untreated groundwater can be estimated on the basis of a logistic regression model by using population density as an explanatory variable. Although there are limitations to this national scale model, it fit the data from 2354 wells used for model development and adequately estimated the VOC presence in samples from 589 wells used for model validation. Model estimates indicate that 7% (6-9% on the basis of one standard error) of the ambient groundwater resources of the United States probably contain at least one VOC at a reporting level of 0.2 mu g/L. Groundwater is used in these areas by 42 million people (35-50 million based on one standard error); however, human exposure to VOCs from this ambient groundwater is uncertain because the quality of the finished drinking water is generally unknown. JF - Environmental Science & Technology AU - Squillace, P J AU - Moran, MJ AU - Lapham, W W AU - Price, C V AU - Clawges, R M AU - Zogorski, J S AD - U.S. Geological Survey, 1608 Mt. View Road, Rapid City, South Dakota 57702, USA, pjsquill@usgs.gov Y1 - 1999/12/01/ PY - 1999 DA - 1999 Dec 01 SP - 4176 EP - 4187 VL - 33 IS - 23 SN - 0013-936X, 0013-936X KW - MTBE KW - USA KW - VOC KW - Water Resources Abstracts; Pollution Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Water supplies (Potable) KW - Regression Analysis KW - Historical account KW - Volatile materials KW - Water sampling KW - Statistical analysis KW - Groundwater Pollution KW - Water quality KW - Rural Areas KW - Water Quality Standards KW - Drinking Water KW - Statistical Analysis KW - Regression analysis KW - Volatile compounds KW - Volatility KW - Urban areas KW - Standards (Water quality) KW - Estimating KW - Well Data KW - Solvents KW - Pollution surveys KW - Population statistics KW - Model Studies KW - Water supply KW - Pollution (Groundwater) KW - Population Density KW - Urban Areas KW - Groundwater pollution KW - Organic Compounds KW - Organic compounds KW - Drinking water KW - Volatile organic compounds KW - Rural areas KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17596437?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Volatile+Organic+Compounds+in+Untreated+Ambient+Groundwater+of+the+United+States%2C+1985-1995&rft.au=Squillace%2C+P+J%3BMoran%2C+MJ%3BLapham%2C+W+W%3BPrice%2C+C+V%3BClawges%2C+R+M%3BZogorski%2C+J+S&rft.aulast=Squillace&rft.aufirst=P&rft.date=1999-12-01&rft.volume=33&rft.issue=23&rft.spage=4176&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes990234m LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Volatile compounds; Groundwater pollution; Water quality; Pollution surveys; Water supply; Historical account; Water sampling; Solvents; Drinking water; Volatile organic compounds; Urban areas; Rural areas; Water supplies (Potable); Standards (Water quality); Pollution (Groundwater); Volatile materials; Regression analysis; Statistical analysis; Organic compounds; Population statistics; Regression Analysis; Well Data; Estimating; Groundwater Pollution; Rural Areas; Model Studies; Water Quality Standards; Drinking Water; Urban Areas; Population Density; Statistical Analysis; Organic Compounds; Volatility DO - http://dx.doi.org/10.1021/es990234m ER - TY - JOUR T1 - Calibration of Paired Basins Prior to Streambank Fencing of Pasture Land AN - 17593471; 4691495 AB - Streambank fencing is a best management practice that is targeted to reduce suspended sediment and nutrient inputs to streams by reducing direct inputs from animals, eliminating streambank trampling, and promoting streambank revegetation. A paired basin study is being conducted in two small adjacent basins to determine the water quality effects of streambank fencing. This article documents the 3-yr calibration period between control and treatment basins prior to fence installation. Approximately 70% of land adjacent to streambanks in the study area is used as pasture. Nutrient quantities applied as manure, benthic-macroinvertebrate communities, and the physical habitat of each stream were similar in both basins. Total N, P, and suspended sediment yields measured at the outlet of each basin averaged about 56, 2.8, and 2650 kg ha super(-1) on an annual basis. For both basins, about 90% of the total N yield was attributable to dissolved NO sub(3)-N and about 90% of the total N yield occurred during nonstormflow; conversely, about 90% of the total P yield was attributable to stormflow and 60 to 65% of the total P yield was suspended. Regression equations developed between both basins for low flow and stormflow samples for nutrients, suspended sediment, and discharge indicated a significant relation for most constituents. Pretreatment relation between basins for low flow and stormflow samples would need to change by 6 and 14% for total N concentrations and 24 and 9% for total P concentrations in order for streambank fencing to significantly affect water quality in the treatment basin. JF - Journal of Environmental Quality AU - Galeone, D G AD - U.S. Geological Survey, WRD, 840 Market Street, Lemoyne, PA 17043-1584, USA, dgaleone@usgs.gov Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 1853 EP - 1863 VL - 28 IS - 6 SN - 0047-2425, 0047-2425 KW - Aqualine Abstracts; Pollution Abstracts; Water Resources Abstracts KW - Agriculture KW - Regression Analysis KW - Phosphorus KW - Pastures KW - Basins KW - Calibration KW - Sediment KW - Land (Grass and pasture) KW - Nutrients KW - Streams KW - Calibrations KW - Fencing KW - Stream Banks KW - Regression analysis KW - Banks KW - Suspended Sediments KW - Freshwater environments KW - Water Quality KW - Flow Discharge KW - Livestock KW - Installation KW - Water quality control KW - Environment management KW - Water quality (Natural waters) KW - Fences KW - Nitrogen KW - P 2000:FRESHWATER POLLUTION KW - SW 3070:Water quality control KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17593471?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Calibration+of+Paired+Basins+Prior+to+Streambank+Fencing+of+Pasture+Land&rft.au=Galeone%2C+D+G&rft.aulast=Galeone&rft.aufirst=D&rft.date=1999-12-01&rft.volume=28&rft.issue=6&rft.spage=1853&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pastures; Stream Banks; Fences; Suspended Sediments; Regression Analysis; Water Quality; Calibrations; Installation; Nutrients; Flow Discharge; Land (Grass and pasture); Banks; Fencing; Sediment; Regression analysis; Water quality (Natural waters); Calibration; Streams; Basins; Water quality control; Nitrogen; Phosphorus; Agriculture; Environment management; Livestock; Freshwater environments ER - TY - JOUR T1 - Estimates of runoff using water-balance and atmospheric general circulation models AN - 17592704; 4666316 AB - The effects of potential climate change on mean annual runoff in the conterminous United States (U.S.) are examined using a simple water-balance model and output from two atmospheric general circulation models (GCMs). The two GCMs are from the Canadian Centre for Climate Prediction and Analysis (CCC) and the Hadley Centre for Climate Prediction and Research (HAD). In general, the CCC GCM climate results in decreases in runoff for the conterminous U.S., and the HAD GCM climate produces increases in runoff. These estimated changes in runoff primarily are the result of estimated changes in precipitation. The changes in mean annual runoff, however, mostly are smaller than the decade-to-decade variability in GCM-based mean annual runoff and errors in GCM-based runoff. The differences in simulated runoff between the two GCMs, together with decade-to-decade variability and errors in GCM-based runoff, cause the estimates of changes in runoff to be uncertain and unreliable. JF - Journal of the American Water Resources Association AU - Wolock, D M AU - McCabe, G J AD - U.S. Geological Survey, 4821 Quail Crest Place, Lawrence, Kansas 66209, USA, dwolock@usgs.gov Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 1341 EP - 1350 PB - American Water Resources Association VL - 35 IS - 6 SN - 1093-474X, 1093-474X KW - GCM KW - USA KW - Aqualine Abstracts; Pollution Abstracts; Water Resources Abstracts KW - Prediction KW - Variability KW - Precipitation (Atmospheric) KW - Climatic changes KW - Hydrologic Models KW - Climatic Changes KW - Mathematical models KW - Estimating KW - Climate KW - Simulation KW - Atmospheric circulation KW - Modelling (-general-) KW - Wet deposition KW - Precipitation KW - Errors KW - Modelling (Hydrological) KW - Runoff KW - AQ 00001:Water Resources and Supplies KW - P 0000:AIR POLLUTION KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17592704?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Estimates+of+runoff+using+water-balance+and+atmospheric+general+circulation+models&rft.au=Wolock%2C+D+M%3BMcCabe%2C+G+J&rft.aulast=Wolock&rft.aufirst=D&rft.date=1999-12-01&rft.volume=35&rft.issue=6&rft.spage=1341&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue on water resources and climate change. N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Runoff; Hydrologic Models; Climatic Changes; Variability; Estimating; Precipitation; Errors; Simulation; Prediction; USA; Modelling (Hydrological); Climate; Precipitation (Atmospheric); Modelling (-general-); Atmospheric circulation; Wet deposition; Climatic changes; Mathematical models ER - TY - JOUR T1 - Occurrence and Transport of Acetochlor in Streams of the Mississippi River Basin AN - 17592406; 4691491 AB - The herbicide acetochlor [2-chloro-N-(ethoxymethyl)-N-(2-ethyl- 6-methylphenyl) acetamide] was first used on corn (Zea mays L.) in the USA during the growing season of 1994. By 1996, it was the third most heavily used corn herbicide in the midwestern USA. During the growing season of 1997, 78% of 375 samples collected at 32 stream sites in the Mississippi River Basin contained detectable concentrations of acetochlor. However, concentrations in only 2% of the samples exceeded 2 mu g/L, the maximum annual average concentration allowable in public water supplies derived primarily from surface water. The largest acetochlor concentrations were detected in streams draining basins in parts of Illinois, Indiana, and Iowa. The median concentration of acetochlor in streams was about 10% that of atrazine (6-chloro-N-ethyl-N-isopropyl-1,3,5-triazine-2,4-diamine), about 25% that of metolachlor [2-chloro-N-(2-ethyl-6- methylphenyl)-N-(2-methoxy-1-methylethyl) acetamide], about 50% that of cyanazine [2-[[4-chloro-6-(ethylamino)-1,3,5-triazin-2-yl]amino]-2- methylpropionitrile], and about threefold that of alachlor [2-chloro-2',6'-diethyl-N-(methoxymethyl) acetanilide]. Load estimates indicate that, during the growing season of 1997, agricultural subbasins draining areas of Illinois, Indiana, and Iowa contributed about 37 000 kg, or 74%, of the 50 000 kg of acetochlor measured in streams of the Mississippi River Basin. JF - Journal of Environmental Quality AU - Clark, G M AU - Goolsby, DA AD - U.S. Geological Survey, 230 Collins Rd., Boise, ID 83702, USA, gmclark@usgs.gov Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 1787 EP - 1795 VL - 28 IS - 6 SN - 0047-2425, 0047-2425 KW - USA, Midwest KW - USA, Mississippi R. KW - Zea mays KW - acetochlor KW - maize KW - Aqualine Abstracts; Pollution Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - River Basins KW - Agricultural Runoff KW - Path of Pollutants KW - Agricultural pollution KW - Fruit and vegetable crops (Cereals) KW - Runoff (Agricultural) (see also Return flows) KW - Water quality measurements KW - Pollution dispersion KW - Basins KW - Streams KW - Public health KW - Water Quality Standards KW - Catchment areas KW - Corn KW - Hydrology KW - Stream Pollution KW - Agricultural runoff KW - Standards (Water quality) KW - Rivers KW - USA, Illinois KW - Estimating KW - Herbicides KW - Agrochemicals KW - Water supply KW - USA, Indiana KW - USA, Iowa KW - Pollution (Surface water) KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality KW - Q5 08524:Public health, medicines, dangerous organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17592406?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Occurrence+and+Transport+of+Acetochlor+in+Streams+of+the+Mississippi+River+Basin&rft.au=Clark%2C+G+M%3BGoolsby%2C+DA&rft.aulast=Clark&rft.aufirst=G&rft.date=1999-12-01&rft.volume=28&rft.issue=6&rft.spage=1787&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Rivers; Agricultural pollution; Pollution dispersion; Herbicides; Agricultural runoff; Public health; Water supply; Water quality measurements; Hydrology; Basins; Agrochemicals; Streams; Standards (Water quality); Catchment areas; Runoff (Agricultural) (see also Return flows); Fruit and vegetable crops (Cereals); Pollution (Surface water); Agricultural Runoff; Water Quality Standards; River Basins; Path of Pollutants; Estimating; Corn; Stream Pollution; USA, Indiana; USA, Iowa; USA, Illinois ER - TY - JOUR T1 - General-circulation-model simulations of future snowpack in the western United States AN - 17591513; 4666870 AB - April 1 snowpack accumulations measured at 311 snow courses in the western United States (U.S.) are grouped using a correlation-based cluster analysis. A conceptual snow accumulation and melt model and monthly temperature and precipitation for each cluster are used to estimate cluster-average April 1 snowpack. The conceptual snow model is subsequently used to estimate future snowpack by using changes in monthly temperature and precipitation simulated by the Canadian Centre for Climate Modeling and Analysis (CCC) and the Hadley Centre for Climate Prediction and Research (HADLEY) general circulation models (GCMs). Results for the CCC model indicate that although winter precipitation is estimated to increase in the future, increases in temperatures will result in large decreases in April 1 snowpack for the entire western US. Results for the HADLEY model also indicate large decreases in April 1 snowpack for most of the western US, but the decreases are not as severe as those estimated using the CCC simulations. Although snowpack conditions are estimated to decrease for most areas of the western US, both GCMs estimate a general increase in winter precipitation toward the latter half of the next century. Thus, water quantity may be increased in the western US; however, the timing of runoff will be altered because precipitation will more frequently occur as rain rather than as snow. JF - Journal of the American Water Resources Association AU - McCabe, G J AU - Wolock, D M AD - U.S. Geological Survey, Denver Federal Center, MS 412, Denver, Colorado 80225, USA, gmccabe@usgs.gov Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 1473 EP - 1484 PB - American Water Resources Association VL - 35 IS - 6 SN - 1093-474X, 1093-474X KW - HADLEY KW - GCM KW - USA, West KW - USA, Western KW - Aqualine Abstracts; Pollution Abstracts; Water Resources Abstracts KW - Prediction KW - Snowpack KW - Precipitation (Atmospheric) KW - Climatic changes KW - Timing KW - Weather KW - Mathematical models KW - Snow KW - Temperature KW - Simulation KW - Atmospheric circulation KW - Wet deposition KW - Precipitation KW - Snow cover KW - Model Studies KW - Accumulation KW - Runoff KW - AQ 00001:Water Resources and Supplies KW - P 0000:AIR POLLUTION KW - SW 0820:Snow, ice and frost UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17591513?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=General-circulation-model+simulations+of+future+snowpack+in+the+western+United+States&rft.au=McCabe%2C+G+J%3BWolock%2C+D+M&rft.aulast=McCabe&rft.aufirst=G&rft.date=1999-12-01&rft.volume=35&rft.issue=6&rft.spage=1473&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue on water resources and climate change. N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Model Studies; Snowpack; Simulation; Timing; Runoff; Precipitation; Prediction; Temperature; Accumulation; USA, Western; Snow cover; Precipitation (Atmospheric); Atmospheric circulation; Snow; Weather; Climatic changes; Mathematical models; Wet deposition ER - TY - JOUR T1 - Estimation of Nitrate Contamination of an Agro-Ecosystem Outwash Aquifer Using a Nitrogen Mass-Balance Budget AN - 17590326; 4691512 AB - A mass-balance budget of N cycling was developed for an intensive agricultural area in west-central Minnesota to better understand NO sub(3) super(-) contamination of ground water in the Otter Tail outwash aquifer. Fertilizer, biological fixation, atmospheric deposition, and animal feed were the N sources, and crop harvests, animal product exports, volatilization from fertilizer and manure, and denitrification were the N sinks in the model. Excess N, calculated as the difference between the sources and sinks, was assumed to leach to ground water as NO sub(3) super(-). The budget was developed using ground water data collected throughout the 212-km super(2) study area. Denitrification was estimated by adjusting its value so the predicted and measured concentrations of NO sub(3) super(-) in ground water agreed. Although biological fixation was the largest single N source, most was removed when crops were harvested, indicating that inorganic fertilizer was the primary source of N reaching the water table. It was estimated that denitrification removed almost half of the excess NO sub(3) super(-) that leached below the root zone. Even after accounting for denitrification losses, however, it was concluded that the ground water system was receiving approximately three times as much N as would be expected under background conditions. JF - Journal of Environmental Quality AU - Puckett, L J AU - Cowdery, T K AU - Lorenz, D L AU - Stoner, J D AD - U.S. Geological Survey, 413 National Center, Reston, VA 20192, USA, lpuckett@usgs.gov Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 2015 EP - 2025 VL - 28 IS - 6 SN - 0047-2425, 0047-2425 KW - USA, Minnesota KW - Aqualine Abstracts; Water Resources Abstracts KW - Agriculture KW - Nitrate KW - Ecosystems KW - Cycling Nutrients KW - Sinks KW - Groundwater Pollution KW - Ecology KW - Fertilizers KW - Denitrification KW - Leaching KW - Nitrates KW - Fate of Pollutants KW - Estimating KW - Outwash KW - Pollution (Groundwater) KW - Root Zone KW - Glacial Aquifers KW - Soil (types of) (Glacial) KW - Soil horizons KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17590326?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Estimation+of+Nitrate+Contamination+of+an+Agro-Ecosystem+Outwash+Aquifer+Using+a+Nitrogen+Mass-Balance+Budget&rft.au=Puckett%2C+L+J%3BCowdery%2C+T+K%3BLorenz%2C+D+L%3BStoner%2C+J+D&rft.aulast=Puckett&rft.aufirst=L&rft.date=1999-12-01&rft.volume=28&rft.issue=6&rft.spage=2015&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Estimating; Nitrates; Denitrification; Ecosystems; Leaching; Root Zone; Groundwater Pollution; Cycling Nutrients; Glacial Aquifers; Outwash; Agriculture; Sinks; Fertilizers; Fate of Pollutants; USA, Minnesota; Nitrate; Ecology; Soil horizons; Pollution (Groundwater); Soil (types of) (Glacial) ER - TY - JOUR T1 - Post-hatching Substrate Moisture and Overwintering Hatchling Turtles AN - 17501405; 4692294 AB - The influence of substrate moisture on hatchling red-eared sliders (Trachemys scripta elegans) during incubation and overwintering was examined. Eggs (24 clutches) were incubated on two different but relatively wet substrates (--150 and --200 kPa). Half the hatchlings from eggs incubated on wet (or dry) substrates were moved to dry (or wet) substrates for overwintering, whereas the other half were overwintered on substrates similar in kPa to the substrate kPa used during incubation. All hatchlings (N = 283) were released to experimentally examine the influence of incubation/overwintering substrate moisture on probability of recapture. After incubating 82-88 days, only maternal effects and initial egg size were significant. After overwintering for 199 days, incubation substrate moisture, overwintering substrate moisture, and their interactions were also significant effects. Hatchlings with drier overwintering substrates weighed less after overwintering and lost more mass during overwintering than did hatchlings overwintered on wetter substrates. Hatchlings from wetter incubation substrates were more likely to be recaptured and less likely to be found dead than those from drier incubation substrates. Heavier hatchlings were also more likely to be recaptured and less likely to be found dead than lighter ones. In contrast, overwintering substrate moisture was not a significant predictor of hatchling recapture. JF - Journal of Herpetology AU - Tucker, J K AU - Paukstis, G L AD - Illinois Natural History Survey, Great Rivers Field Station, Long Term Resource Monitoring Program-Reach 26, 4134 Alby Street, Alton, Illinois 62002, USA, john_k_tucker@usgs.gov Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 608 EP - 615 VL - 33 IS - 4 SN - 0022-1511, 0022-1511 KW - Red-eared slider KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Sediment properties KW - Overwintering KW - Substrates KW - Incubation KW - Survival KW - Freshwater KW - Water content KW - Water availability KW - Trachemys scripta elegans KW - D 04670:Reptiles KW - Q1 08324:Reproduction and development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17501405?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Herpetology&rft.atitle=Post-hatching+Substrate+Moisture+and+Overwintering+Hatchling+Turtles&rft.au=Tucker%2C+J+K%3BPaukstis%2C+G+L&rft.aulast=Tucker&rft.aufirst=J&rft.date=1999-12-01&rft.volume=33&rft.issue=4&rft.spage=608&rft.isbn=&rft.btitle=&rft.title=Journal+of+Herpetology&rft.issn=00221511&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment properties; Overwintering; Survival; Incubation; Water content; Substrates; Water availability; Trachemys scripta elegans; Freshwater ER - TY - JOUR T1 - Butterfly (Papilionoidea and Hesperioidea) assemblages associated with natural, exotic, and restored riparian habitats along the Lower Colorado River, USA AN - 17498406; 4681317 AB - Butterfly assemblages were used to compare revegetated and natural riparian areas along the lower Colorado River. Species richness and correspondence analyses of assemblages showed that revegetated sites had fewer biological elements than more natural sites along the Bill Williams River. Data suggest that revegetated sites do not provide resources needed by some members of the butterfly assemblage, especially those species historically associated with the cottonwood/willow ecosystem. Revegetated sites generally lacked nectar resources, larval host plants, and closed canopies. The riparian system along the regulated river segment that contains these small revegetated sites also appears to have diminished habitat heterogeneity and uncoupled riparian corridors. Revegetated sites were static environments without the successional stages caused by flooding disturbance found in more natural systems. We hypothesize that revegetation coupled with a more natural hydrology is important for restoration of butterfly assemblages along the lower Colorado River. JF - Regulated Rivers: Research & Management AU - Nelson, S M AU - Andersen, D C AD - Bureau of Reclamation, D-8220, P.O. Box 25007, Denver, CO 80225-5007, USA Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 485 EP - 504 VL - 15 IS - 6 SN - 0886-9375, 0886-9375 KW - Butterflies KW - USA KW - USA, Bill Williams R. KW - USA, Colorado R. KW - Ecology Abstracts; Entomology Abstracts; Water Resources Abstracts KW - Hesperioidea KW - Ecosystems KW - Regulated Rivers KW - Revegetation KW - Habitats KW - Riparian Land KW - Riparian environments KW - Hydrology KW - Habitat utilization KW - Heterogeneity KW - Papilionoidea KW - Rehabilitation KW - Insects KW - Comparison Studies KW - Environmental restoration KW - Introduced species KW - Z 05205:Populations & general ecology KW - SW 0810:General KW - D 04659:Insects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17498406?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Regulated+Rivers%3A+Research+%26+Management&rft.atitle=Butterfly+%28Papilionoidea+and+Hesperioidea%29+assemblages+associated+with+natural%2C+exotic%2C+and+restored+riparian+habitats+along+the+Lower+Colorado+River%2C+USA&rft.au=Nelson%2C+S+M%3BAndersen%2C+D+C&rft.aulast=Nelson&rft.aufirst=S&rft.date=1999-12-01&rft.volume=15&rft.issue=6&rft.spage=485&rft.isbn=&rft.btitle=&rft.title=Regulated+Rivers%3A+Research+%26+Management&rft.issn=08869375&rft_id=info:doi/10.1002%2F%28SICI%291099-1646%28199911%2F12%2915%3A63.0.CO%3B2-Z LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Papilionoidea; Hesperioidea; Insects; Comparison Studies; Riparian Land; Revegetation; Ecosystems; Habitats; Heterogeneity; Rehabilitation; Regulated Rivers; Hydrology; Introduced species; Riparian environments; Environmental restoration; Habitat utilization DO - http://dx.doi.org/10.1002/(SICI)1099-1646(199911/12)15:6<485::AID-RRR550>3.0.CO;2-Z ER - TY - JOUR T1 - Microsatellite diversity and conservation of a relic trout population: McCloud River redband trout AN - 17491164; 4679129 AB - Rainbow trout native to the McCloud River, California, USA (Oncorhynchus mykiss stonei) are thought to represent a relic, nonanadromous trout adapted to harsh, fragmented environments. These fish, commonly named McCloud River `redband' trout, survive in their most primitive form in a small, spring-fed stream, Sheepheaven Creek, in the upper McCloud River drainage. Turn-of-the-century fisheries records document both coastal anadromous steelhead and freshwater resident trout within the McCloud River drainage. The phylogenetic position of the McCloud River redband trout within O. mykiss has been debated for over 50 years. Based on phenotypic evidence, these fish were first reported as `southern Sierra golden trout' by Wales in 1939. Behnke (1970) considered them a relic subspecies of nonanadromous, fine-scaled trout. Allozyme and mitochondrial DNA evidence suggested a coastal lineage. In this study, we examined within- and among-basin genetic associations for Sheepheaven Creek redband trout using 11 microsatellite loci. Within-basin analyses supported unique genetic characteristics in Sheepheaven Creek's trout in comparisons with other McCloud River rainbow trout. Microsatellite data supported significant independence between Sheepheaven Creek fish and hatchery rainbow trout. Inter-basin genetic distance analyses positioned Sheepheaven Creek fish with samples collected from Lassen Creek, a geographically proximate stream containing inland redband trout. California's redband trout shared a close genetic association with Little Kern River golden trout (O.m. whitei) and isolated rainbow trout from Rio Santo Domingo, Baja, Mexico (O.m. nelsoni), suggesting a vicariant distribution of microsatellite diversity throughout the southern range of this species. JF - Molecular Ecology AU - Nielsen, J L AU - Crow, K D AU - Fountain, M C AD - USGS/BRD, Alaska Biological Science Center, 1011 East Tudor Road, Anchorage, Alaska 99503, USA, jennifer_nielsen@usgs.gov Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - S129 EP - S142 VL - 8 IS - 12 SN - 0962-1083, 0962-1083 KW - Rainbow trout KW - USA, California KW - geographical distribution KW - microsatellites KW - nonanadromous populations KW - subspecies KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts; Genetics Abstracts KW - Catchment area KW - Phylogeny KW - Geographical distribution KW - Microsatellites KW - Mexico, Baja California, Santo Domingo R. KW - Ecological genetics KW - Fishery resources KW - Oncorhynchus mykiss nelsoni KW - Relict species KW - Oncorhynchus mykiss stonei KW - Population genetics KW - Drainage systems KW - Fishery management KW - USA, California, Sheepheaven Creek KW - Oncorhynchus mykiss whitei KW - DNA KW - Nature conservation KW - Stock identification KW - USA, California, McCloud R. KW - Conservation genetics KW - Q1 08345:Genetics and evolution KW - Q1 08443:Population genetics KW - G 07270:Ecological genetics KW - G 07371:Fish KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17491164?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Molecular+Ecology&rft.atitle=Microsatellite+diversity+and+conservation+of+a+relic+trout+population%3A+McCloud+River+redband+trout&rft.au=Nielsen%2C+J+L%3BCrow%2C+K+D%3BFountain%2C+M+C&rft.aulast=Nielsen&rft.aufirst=J&rft.date=1999-12-01&rft.volume=8&rft.issue=12&rft.spage=S129&rft.isbn=&rft.btitle=&rft.title=Molecular+Ecology&rft.issn=09621083&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Phylogeny; Catchment area; Population genetics; Fishery management; Nature conservation; DNA; Stock identification; Fishery resources; Relict species; Geographical distribution; Drainage systems; Microsatellites; Ecological genetics; Conservation genetics; Oncorhynchus mykiss stonei; Oncorhynchus mykiss whitei; Oncorhynchus mykiss nelsoni; USA, California, Sheepheaven Creek; Mexico, Baja California, Santo Domingo R.; USA, California, McCloud R. ER - TY - JOUR T1 - Intraspecific phylogeography of Lasmigona subviridis (Bivalvia: Unionidae): conservation implications of range discontinuity AN - 17490155; 4679124 AB - A nucleotide sequence analysis of the first internal transcribed spacer region (ITS-1) between the 5.8S and 18S ribosomal DNA genes (640 bp) and cytochrome c oxidase subunit I (COI) of mitochondrial DNA (mtDNA) (576 bp) was conducted for the freshwater bivalve Lasmigona subviridis and three congeners to determine the utility of these regions in identifying phylogeographic and phylogenetic structure. Sequence analysis of the ITS-1 region indicated a zone of discontinuity in the genetic population structure between a group of L. subviridis populations inhabiting the Susquehanna and Potomac Rivers and more southern populations. Moreover, haplotype patterns resulting from variation in the COI region suggested an absence of gene exchange between tributaries within two different river drainages, as well as between adjacent rivers systems. The authors recommend that the northern and southern populations, which are reproductively isolated and constitute evolutionarily significant lineages, be managed as separate conservation units. Results from the COI region suggest that, in some cases, unionid relocations should be avoided between tributaries of the same drainage because these populations may have been reproductively isolated for thousands of generations. Therefore, unionid bivalves distributed among discontinuous habitats (e.g. Atlantic slope drainages) potentially should be considered evolutionarily distinct. The DNA sequence divergences observed in the nuclear and mtDNA regions among the Lasmigona species were congruent, although the level of divergence in the COI region was up to three times greater. The genus Lasmigona, as represented by the four species surveyed in this study, may not be monophyletic. JF - Molecular Ecology AU - King, T L AU - Eackles AU - Gjetvaj, B AU - Hoeh, W R AD - US Geological Survey, Biological Resources Division, Leetown Science Center, Aquatic Ecology Laboratory, 1700 Leetown Road, Kearneysville, West Virginia 25430, USA, tim_king@usgs.gov Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - S65 EP - S78 VL - 8 IS - 12 SN - 0962-1083, 0962-1083 KW - Bivalves KW - Green floater KW - USA KW - freshwater mollusks KW - spacer region KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts; Genetics Abstracts KW - Catchment area KW - Cytochromes KW - USA, Potomac R. KW - Biogeography KW - Nucleotide sequence KW - Lasmigona subviridis KW - Unionidae KW - Sexual isolation KW - Cytochrome-c oxidase KW - Ecological genetics KW - USA, Susquehanna R. KW - Bivalvia KW - Population genetics KW - Mitochondrial DNA KW - Drainage systems KW - DNA KW - Isolating mechanisms KW - Tributaries KW - Q1 08443:Population genetics KW - G 07270:Ecological genetics KW - D 04705:Conservation KW - G 07364:Mollusks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17490155?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Molecular+Ecology&rft.atitle=Intraspecific+phylogeography+of+Lasmigona+subviridis+%28Bivalvia%3A+Unionidae%29%3A+conservation+implications+of+range+discontinuity&rft.au=King%2C+T+L%3BEackles%3BGjetvaj%2C+B%3BHoeh%2C+W+R&rft.aulast=King&rft.aufirst=T&rft.date=1999-12-01&rft.volume=8&rft.issue=12&rft.spage=S65&rft.isbn=&rft.btitle=&rft.title=Molecular+Ecology&rft.issn=09621083&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Catchment area; Cytochromes; Population genetics; Biogeography; Nucleotide sequence; DNA; Sexual isolation; Isolating mechanisms; Tributaries; Mitochondrial DNA; Drainage systems; Cytochrome-c oxidase; Ecological genetics; Bivalvia; Unionidae; Lasmigona subviridis; USA, Potomac R.; USA, Susquehanna R. ER - TY - JOUR T1 - Population changes in bats from central Arizona: 1972 and 1997 AN - 17484179; 4683142 AB - Prompted by concern about declining bat populations in the southwestern United States, we surveyed for changes in populations between 1972 and 1997 at a study area in central Arizona. We duplicated earlier searches of ancient Indian dwellings and crevices in surrounding cliffs for diurnally roosting bats during the time of year when maternity colonies should have been present, and repeated mist-netting to capture bats in flight along the cliffs at night. Antrozous pallidus was gone. A maternity colony of Myotis velifer no longer existed. Tadarida brasiliensis was rare in 1997 compared to 1972; aggregations of Myotis yumanensis seen in 1972 were missing in 1997. Breeding Corynorhinus townsendii were found in 1997, but were unknown at this location in 1972. Small numbers of Eptesicus fuscus, Myotis californicus, and Pipistrellus hesperus occupied the site in both 1972 and 1997. Additionally, museum records show that most of the bats we documented at this site also were present in 1931. Surrounding habitat did not appear substantially different between 1972 and 1997, and a reconstruction of possible impacts from bat biologists did not suggest that researchers caused the local extinctions we document. The most obvious change over 25 years was a dramatic increase in recreational use of the area. We believe that disturbances associated with recreationists resulted in the observed population changes, primarily through roost abandonment. JF - Southwestern Naturalist AU - O'Shea, T J AU - Vaughan, T A AD - United States Geological Survey, Midcontinent Ecological Science Center, 4512 McMurry Ave., Fort Collins, CO 80525-3400, USA Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 495 EP - 500 VL - 44 IS - 4 SN - 0038-4909, 0038-4909 KW - Bats KW - USA, Arizona KW - Ecology Abstracts KW - Chiroptera KW - Population changes KW - D 04672:Mammals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17484179?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Southwestern+Naturalist&rft.atitle=Population+changes+in+bats+from+central+Arizona%3A+1972+and+1997&rft.au=O%27Shea%2C+T+J%3BVaughan%2C+T+A&rft.aulast=O%27Shea&rft.aufirst=T&rft.date=1999-12-01&rft.volume=44&rft.issue=4&rft.spage=495&rft.isbn=&rft.btitle=&rft.title=Southwestern+Naturalist&rft.issn=00384909&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Chiroptera; Population changes ER - TY - JOUR T1 - Comparative microhabitat use of ecologically similar benthic fishes AN - 17482446; 4683869 AB - Although benthic insectivorous fishes such as darters and sculpins represent a significant component of riffle communities, few studies have compared the habitat use of these non-related but ecologically similar fishes. The objectives of this study were to examine the habitat use of Etheostoma olmstedi (tessellated darter) compared to Cottus bairdi (mottled sculpin) in Nescopeck Creek and Cottus cognatus (slimy sculpin) in Jack's Creek, Pennsylvania through underwater observation. Etheostoma olmstedi occupied habitats with significantly deeper waters than those available, whereas adult and young of the year Cottus occupied habitats with significantly faster water velocities than those available. Canonical discriminant analysis revealed microhabitat partitioning between E. olmstedi and each Cottus species. Cottus bairdi and C. cognatus occupied significantly shallower habitats with faster water velocities than E. olmstedi. Sculpin species were observed most frequently under substrate whereas E. olmstedi occurred most frequently on the top surface of the substrate. Hurlbert's standardized niche breadth values indicated that C. bairdi and C. cognatus were habitat specialists with regard to water velocity measures, but exhibited generalistic patterns of depth and substrate size use. Etheostoma olmstedi was a habitat specialist with respect to depth, but exhibited generalistic patterns of resource use for substrate size. Differential habitat use by these benthic fishes is consistent with the hypothesis that resource partitioning facilitates species coexistence among stream fishes. JF - Environmental Biology of Fishes AU - Van Snik Gray, E AU - Stauffer, JR Jr AD - U.S. Geological Survey, Leetown Science Center, 1700 Leetown Road, Kearneysville, WV 25430, USA, ellen_gray@usgs.gov Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 443 EP - 453 VL - 56 IS - 4 SN - 0378-1909, 0378-1909 KW - Mottled sculpin KW - Slimy sculpin KW - Tessellated darter KW - USA, Pennsylvania KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Water depth KW - Etheostoma olmstedi KW - Niches KW - Ecological distribution KW - Carnivores KW - Microhabitats KW - Freshwater KW - Habitat selection KW - Cottus bairdi KW - Cottus cognatus KW - Substrate preferences KW - Stream flow rate KW - Insectivores KW - Habitat utilization KW - Zoobenthos KW - Resource partitioning KW - Q1 08341:General KW - D 04668:Fish KW - Q1 08423:Behaviour UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17482446?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Biology+of+Fishes&rft.atitle=Comparative+microhabitat+use+of+ecologically+similar+benthic+fishes&rft.au=Van+Snik+Gray%2C+E%3BStauffer%2C+JR+Jr&rft.aulast=Van+Snik+Gray&rft.aufirst=E&rft.date=1999-12-01&rft.volume=56&rft.issue=4&rft.spage=443&rft.isbn=&rft.btitle=&rft.title=Environmental+Biology+of+Fishes&rft.issn=03781909&rft_id=info:doi/10.1023%2FA%3A1007536019444 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Water depth; Substrate preferences; Ecological distribution; Niches; Microhabitats; Carnivores; Stream flow rate; Habitat selection; Insectivores; Habitat utilization; Zoobenthos; Resource partitioning; Cottus cognatus; Etheostoma olmstedi; Cottus bairdi; Freshwater DO - http://dx.doi.org/10.1023/A:1007536019444 ER - TY - JOUR T1 - Evaluation of Reforestation in the Lower Mississippi River Alluvial Valley AN - 17479736; 4681506 AB - Only about 2.8 million ha of an estimated original 10 million ha of bottomland hardwood forests still exist in the Lower Mississippi River Alluvial Valley (LMAV) of the United States. The U.S. Fish and Wildlife Service, the U.S. Forest Service, and state agencies initiated reforestation efforts in the late 1980s to improve wildlife habitat. We surveyed restorationists responsible for reforestation in the LMAV to determine the magnitude of past and future efforts and to identify major limiting factors. Over the past 10 years, 77,698 ha have been reforested by the agencies represented in our survey and an additional 89,009 ha are targeted in the next 5 years. Oaks are the most commonly planted species and bare-root seedlings are the most commonly used planting stock. Problems with seedling availability may increase the diversity of plantings in the future. Reforestation in the LMAV is based upon principles of landscape ecology; however, local problems such as herbivory, drought, and flooding often limit success. Broad-scale hydrologic restoration is needed to fully restore the structural and functional attributes of these systems, but because of drastic and widespread hydrologic alterations and socioeconomic constraints, this goal is generally not realistic. Local hydrologic restoration and creation of specific habitat features needed by some wildlife and fish species warrant attention. More extensive analyses of plantings are needed to evaluate functional success. The Wetland Reserve Program is a positive development, but policies that provide additional financial incentives to landowners for reforestation efforts should be seriously considered. JF - Restoration Ecology AU - King, S L AU - Keeland, B D AD - U.S. Geological Survey, Biological Resources Division, National Wetlands Research Center, 700 Cajundome Boulevard, Lafayette, LA 70506, USA, sammy_king@usgs.gov Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 348 EP - 359 VL - 7 IS - 4 SN - 1061-2971, 1061-2971 KW - USA KW - Ecology Abstracts KW - Environmental restoration KW - Reforestation KW - D 04715:Reclamation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17479736?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Restoration+Ecology&rft.atitle=Evaluation+of+Reforestation+in+the+Lower+Mississippi+River+Alluvial+Valley&rft.au=King%2C+S+L%3BKeeland%2C+B+D&rft.aulast=King&rft.aufirst=S&rft.date=1999-12-01&rft.volume=7&rft.issue=4&rft.spage=348&rft.isbn=&rft.btitle=&rft.title=Restoration+Ecology&rft.issn=10612971&rft_id=info:doi/10.1046%2Fj.1526-100X.1999.72029.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Reforestation; Environmental restoration DO - http://dx.doi.org/10.1046/j.1526-100X.1999.72029.x ER - TY - JOUR T1 - Use of historical and geospatial data to guide the restoration of a Lake Erie coastal marsh AN - 17462307; 4670440 AB - Historical and geospatial data were used to identify the relationships between water levels, wetland vegetation, littoral drift of sediments, and the condition of a protective barrier beach at Metzger Marsh, a coastal wetland in western Lake Erie, to enhance and guide a joint federal and state wetland restoration project. Eleven sets of large-scale aerial photographs dating from 1940 through 1994 were interpreted to delineate major vegetation types and boundaries of the barrier beach. A geographic information system (GIS) was then used to digitize the data and calculate the vegetated area and length of barrier beach. Supplemented by paleoecological and sedimentological analyses, aerial photographic interpretation revealed that Metzger Marsh was once a drowned-river-mouth wetland dominated by sedges and protected by a sand barrier beach. Extremely high water levels, storm events, and reduction of sediments in the littoral drift contributed to the complete destruction of the barrier beach in 1973 and prevented its recovery. The extent of wetland vegetation, correlated to water levels and condition of the barrier beach, decreased from a high of 108 ha in 1940 to a low of 33 ha in 1994. The lack of an adequate sediment supply and low probability of a period of extremely low lake levels in the near future made natural reestablishment of the barrier beach and wetland vegetation unlikely. Therefore, the federal and state managers chose to construct a dike to replace the protective barrier beach. Recommendations stemming from this historical analysis, however, resulted in the incorporation of a water-control structure in the dike that will retain a hydrologic connection between wetland and lake. Management of the wetland will seek to mimic processes natural to the wetland type identified by this analysis. JF - Wetlands AU - Kowalski, K P AU - Wilcox, DA AD - U.S. Geological Survey, Great Lakes Science Center, 1451 Green Road, Ann Arbor, MI 48105, USA, kurt_kowalski@usgs.gov Y1 - 1999/12// PY - 1999 DA - December 1999 SP - 858 EP - 868 PB - Society of Wetlands Scientists, Box 1897 Lawrence KS 66044 USA VL - 19 IS - 4 SN - 0277-5212, 0277-5212 KW - North America, Erie L. KW - USA, Ohio KW - Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Historical account KW - Management KW - Coastal environments KW - Water level KW - Freshwater KW - Restoration KW - Water levels KW - Vegetation cover KW - Geomorphology KW - Barrier beaches KW - USA, Ohio, Erie L., Metzger Marsh KW - Ecosystem management KW - Hydrology KW - Wetlands KW - Land Reclamation KW - Plant populations KW - Land reclamation KW - Aerial Photography KW - Vegetation KW - Water Level KW - Marshes KW - Shore protection KW - Aerial photographs KW - Historical ecology KW - Environmental restoration KW - Geographical reference systems KW - Photography KW - AQ 00001:Water Resources and Supplies KW - Q1 08221:General KW - SW 2080:Watershed protection KW - Q5 08522:Protective measures and control KW - Q2 09124:Coastal zone management KW - D 04715:Reclamation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17462307?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Wetlands&rft.atitle=Use+of+historical+and+geospatial+data+to+guide+the+restoration+of+a+Lake+Erie+coastal+marsh&rft.au=Kowalski%2C+K+P%3BWilcox%2C+DA&rft.aulast=Kowalski&rft.aufirst=K&rft.date=1999-12-01&rft.volume=19&rft.issue=4&rft.spage=858&rft.isbn=&rft.btitle=&rft.title=Wetlands&rft.issn=02775212&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Water levels; Historical account; Vegetation cover; Shore protection; Barrier beaches; Aerial photographs; Ecosystem management; Wetlands; Marshes; Geographical reference systems; Plant populations; Restoration; Management; Coastal environments; Historical ecology; Environmental restoration; Geomorphology; Water level; Hydrology; Vegetation; Photography; Land reclamation; Aerial Photography; Land Reclamation; Water Level; USA, Ohio, Erie L., Metzger Marsh; Freshwater ER - TY - JOUR T1 - Passing of northern pike and common carp through experimental barriers designed for use in wetland restoration AN - 17459597; 4670442 AB - Restoration plans for Metzger Marsh, a coastal wetland on the south shore of western Lake Erie, incorporated a fish-control system designed to restrict access to the wetland by large common carp (Cyprinus carpio). Ingress fish passageways in the structure contain slots into which experimental grates of varying size and shape can be placed to selectively allow entry and transfer of other large fish species while minimizing the number of common carp to be handled. We tested different sizes and shapes of grates in experimental tanks in the laboratory to determine the best design for testing in the field. We also tested northern pike (Esox lucius) because lack of access to wetland spawning habitat has greatly reduced their populations in western Lake Erie. Based on our results, vertical bar grates were chosen for installation because common carp were able to pass through circular grates smaller than body height by compressing their soft abdomens; they passed through rectangular grates on the diagonal. Vertical bar grates with 5-cm spacing that were installed across much of the control structure should limit access of common carp larger than 34 cm total length (TL) and northern pike larger than 70 cm. Vertical bar grates selected for initial field trials in the fish passageway had spacings of 5.8 and 6.6 cm, which increased access by common carp to 40 and 47 cm TL and by northern pike to 76 and 81 cm, respectively. The percentage of potential common carp biomass (fish seeking entry) that must be handled in lift baskets in the passageway increased from 0.9 to 4.8 to 15.4 with each increase in spacing between bars. Further increases in spacing would greatly increase the number of common carp that would have to be handled. The results of field testing should be useful in designing selective fish-control systems for other wetland restoration sites adjacent to large water bodies. JF - Wetlands AU - French, JRP III AU - Wilcox, DA AU - Nichols, S J AD - U.S. Geological Survey, Great Lakes Science Center, 1451 Green Road, Ann Arbor, MI 48105, USA, douglas_wilcox@usgs.gov Y1 - 1999/12// PY - 1999 DA - December 1999 SP - 883 EP - 888 PB - Society of Wetlands Scientists, Box 1897 Lawrence KS 66044 USA VL - 19 IS - 4 SN - 0277-5212, 0277-5212 KW - Common carp KW - European carp KW - North America, Erie L. KW - Northern pike KW - USA, Ohio KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Fishways KW - Fish Passages KW - Freshwater KW - Freshwater fish KW - Restoration KW - Carp KW - Population control KW - Fish Management KW - USA, Ohio, Erie L., Metzger Marsh KW - Cyprinus carpio KW - Ecosystem management KW - Body size KW - Environmental restoration KW - Wetlands KW - Esox lucius KW - Land Reclamation KW - Fish Populations KW - Coasts KW - Q5 08523:Conservation, wildlife management and recreation KW - SW 6090:Fisheries engineering KW - Q1 08341:General KW - D 04715:Reclamation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17459597?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Wetlands&rft.atitle=Passing+of+northern+pike+and+common+carp+through+experimental+barriers+designed+for+use+in+wetland+restoration&rft.au=French%2C+JRP+III%3BWilcox%2C+DA%3BNichols%2C+S+J&rft.aulast=French&rft.aufirst=JRP&rft.date=1999-12-01&rft.volume=19&rft.issue=4&rft.spage=883&rft.isbn=&rft.btitle=&rft.title=Wetlands&rft.issn=02775212&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Population control; Fishways; Body size; Ecosystem management; Wetlands; Freshwater fish; Restoration; Environmental restoration; Carp; Fish Management; Fish Passages; Fish Populations; Land Reclamation; Coasts; Cyprinus carpio; Esox lucius; USA, Ohio, Erie L., Metzger Marsh; Freshwater ER - TY - JOUR T1 - Techniques for restoration of disturbed coastal wetlands of the Great Lakes AN - 17458219; 4670439 AB - A long history of human-induced degradation of Great Lakes wetlands has made restoration a necessity, but the practice of wetland restoration is relatively new, especially in large lake systems. Therefore, we compiled tested methods and developed additional potential methods based on scientific understanding of Great Lakes wetland ecosystems to provide an overview of approaches for restoration. We addressed this challenge by focusing on four general fields of science: hydrology, sedimentology, chemistry, and biology. Hydrologic remediation methods include restoring hydrologic connections between diked and hydrologically altered wetlands and the lakes, restoring water tables lowered by ditching, and restoring natural variation in lake levels of regulated lakes Superior and Ontario. Sedimentological remediation methods include management of sediment input from uplands, removal or proper management of dams on tributary rivers, and restoration of protective barrier beaches and sand spits. Chemical remediation methods include reducing or eliminating inputs of contaminants from point and non-point sources, natural sediment remediation by biodegradation and chemical degradation, and active sediment remediation by removal or by in situ treatment. Biological remediation methods include control of non-target organisms, enhancing populations of target organisms, and enhancing habitat for target organisms. Some of these methods were used in three major restoration projects (Metzger Marsh on Lake Erie and Cootes Paradise and Oshawa Second Marsh on Lake Ontario), which are described as case studies to show practical applications of wetland restoration in the Great Lakes. Successful restoration techniques that do not require continued manipulation must be founded in the basic tenets of ecology and should mimic natural processes. Success is demonstrated by the sustain -ability, productivity, nutrient-retention ability, invasibility, and biotic interactions within a restored wetland. JF - Wetlands AU - Wilcox, DA AU - Whillans, TH AD - Great Lakes Science Center, U.S. Geological Survey, 1451 Green Rd, Ann Arbor, MI 48105, USA, douglas_wilcox@usgs.gov Y1 - 1999/12// PY - 1999 DA - December 1999 SP - 835 EP - 857 PB - Society of Wetlands Scientists, Box 1897 Lawrence KS 66044 USA VL - 19 IS - 4 SN - 0277-5212, 0277-5212 KW - North America KW - North America, Great Lakes KW - land restoration KW - Aqualine Abstracts; Ecology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Land Management KW - Coastal environments KW - Degradation KW - Environmental Quality KW - Freshwater KW - Decomposition KW - Restoration KW - Water levels KW - Hydrology KW - Wetlands KW - Land Reclamation KW - Sedimentation KW - Water Control KW - Land reclamation KW - Sediment pollution KW - Land restoration KW - Environmental quality standards KW - Methodology KW - Community composition KW - Environmental restoration KW - Pollution control KW - AQ 00001:Water Resources and Supplies KW - SW 2080:Watershed protection KW - Q5 08522:Protective measures and control KW - D 04715:Reclamation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17458219?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Wetlands&rft.atitle=Techniques+for+restoration+of+disturbed+coastal+wetlands+of+the+Great+Lakes&rft.au=Wilcox%2C+DA%3BWhillans%2C+TH&rft.aulast=Wilcox&rft.aufirst=DA&rft.date=1999-12-01&rft.volume=19&rft.issue=4&rft.spage=835&rft.isbn=&rft.btitle=&rft.title=Wetlands&rft.issn=02775212&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Water levels; Sediment pollution; Community composition; Degradation; Hydrology; Wetlands; Sedimentation; Land reclamation; Pollution control; Restoration; Coastal environments; Environmental restoration; Methodology; Land restoration; Environmental quality standards; Decomposition; Land Management; Environmental Quality; Land Reclamation; Water Control; Freshwater ER - TY - JOUR T1 - Spiders in conservation planning: a survey of US natural heritage programs AN - 17452308; 4655119 AB - Although spiders play important roles in terrestrial ecosystems and are negatively impacted by human activity, they have received little attention from the US conservation community. Information gaps may prohibit the inclusion of spiders in conservation planning. Conservation priority setting, environmental review and local land-use planning activities in the US increasingly rely on information compiled by the Natural Heritage Network. A review of heritage database content and a survey of natural heritage programs both indicate a paucity of compiled data on the US spider fauna. Heritage programs are probably hampered by the unavailability of current species checklists, identification services and keys, and a general unfamiliarity with the fauna. Clearly, further development of information on rare or imperiled spiders will depend on increased communication and collaboration with arachnologists. JF - Journal of Insect Conservation AU - Skerl, K L AD - National Park Service, Cuyahoga Valley National Recreation Area, 15610 Vaughn Rd., Brecksville, OH 44141, USA, kevin_skerl@nps.gov Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 341 EP - 347 VL - 3 IS - 4 SN - 1366-638X, 1366-638X KW - Araneae KW - USA KW - Ecology Abstracts; Entomology Abstracts KW - Planning KW - Conservation KW - Z 05205:Populations & general ecology KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17452308?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Insect+Conservation&rft.atitle=Spiders+in+conservation+planning%3A+a+survey+of+US+natural+heritage+programs&rft.au=Skerl%2C+K+L&rft.aulast=Skerl&rft.aufirst=K&rft.date=1999-12-01&rft.volume=3&rft.issue=4&rft.spage=341&rft.isbn=&rft.btitle=&rft.title=Journal+of+Insect+Conservation&rft.issn=1366638X&rft_id=info:doi/10.1023%2FA%3A1009641620689 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue: Issues in spider conservation. N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Conservation; Planning DO - http://dx.doi.org/10.1023/A:1009641620689 ER - TY - JOUR T1 - Models and reality: Time-energy trade-offs in Pectoral Sandpiper (Calidris melanotos) migration AN - 17442731; 4655219 AB - We used a combination of modeling and field studies to determine the spring migration strategy of Pectoral Sandpipers (Calidris melanotos). We developed a dynamic programming model to predict patterns that should be detected along the migratory route if Pectoral Sandpipers use a strategy of early arrival at the breeding grounds (time minimization) or arrival at the breeding grounds with excess energy reserves (energy maximization). The predictions were then compared to data collected at stopover sites in the mid-continent of North America and at the breeding grounds in Alaska over a 5-yr period (1992-1996). During spring migration to their Arctic breeding grounds, Pectoral Sandpipers stop periodically to feed. The length-of-stay at such stopovers, for both time minimizers and energy maximizers, was predicted to vary inversely with date and body fat, and to vary directly with invertebrate abundance. We observed that: (1) length-of-stay was negatively correlated with capture date in Missouri and Nebraska, but not in Texas; (2) length-of-stay was not correlated with body fat at any site; and (3) length-of-stay was positively related to invertebrate abundance at the Nebraska and Missouri sites. As the population moves northward in the spring, three regional patterns are diagnostic of migration strategy. Length-of-stay was predicted to be bimodal (energy maximizer) or constant (time minimizer) with respect to latitude, but neither pattern was observed. The migration window, or period of time during which spring migrants occur, was predicted to decrease with increasing latitude for time minimizers, a pattern that was seen for both males and females. Body fat was predicted to increase with latitude for energy maximizers, a pattern that was seen for females but not males. The evidence suggests that males and females differ in their spring migration strategies. Both sexes attempt to arrive in the Arctic as early as possible after ice breakup in the spring. Additionally, females gain significantly higher fat loads than males (up to 60% body fat for females) during migration, and these energy reserves may later enhance female reproductive success. However, females gained large fat loads only during 1993 and 1995, which had above normal spring precipitation along the migration route. We believe that the correlation between female body fat and precipitation reflects an abundance of high-quality stopover habitat during wet springs. This view is supported by model sensitivity analyses showing that the spacing and quality of stopover habitat can strongly influence observed migration patterns. Our results suggest the need to focus additional research on the landscape-level features of the flyway through which shorebirds migrate. JF - Ecology AU - Farmer, AH AU - Wiens, JA AD - Midcontinent Ecological Science Center, 4512 McMurry Ave., Fort Collins, CO 80525-3400, USA, adrian_farmer@usgs.gov Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 2566 EP - 2580 VL - 80 IS - 8 SN - 0012-9658, 0012-9658 KW - Pectoral sandpiper KW - mathematical model KW - time allocation studies KW - time-energy trade-offs KW - Animal Behavior Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Time allocation KW - Mathematical models KW - Calidris melanotos KW - Bioenergetics KW - Migrations KW - Energetics KW - Activity patterns KW - Migration KW - Models KW - O 1070:Ecology/Community Studies KW - Q1 08421:Migrations and rhythms KW - D 04671:Birds KW - Y 25656:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17442731?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecology&rft.atitle=Models+and+reality%3A+Time-energy+trade-offs+in+Pectoral+Sandpiper+%28Calidris+melanotos%29+migration&rft.au=Farmer%2C+AH%3BWiens%2C+JA&rft.aulast=Farmer&rft.aufirst=AH&rft.date=1999-12-01&rft.volume=80&rft.issue=8&rft.spage=2566&rft.isbn=&rft.btitle=&rft.title=Ecology&rft.issn=00129658&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Mathematical models; Bioenergetics; Migrations; Activity patterns; Time allocation; Energetics; Migration; Models; Calidris melanotos ER - TY - JOUR T1 - Effects of Landscape Composition and Wetland Fragmentation on Frog and Toad Abundance and Species Richness in Iowa and Wisconsin, U.S.A. AN - 17438828; 4655288 AB - Management of amphibian populations to reverse recent declines will require defining high-quality habitat for individual species or groups of species, followed by efforts to retain or restore these habitats on the landscape. We examined landscape-level habitat relationships for frogs and toads by measuring associations between relative abundance and species richness based on survey data derived from anuran calls and features of land-cover maps for Iowa and Wisconsin. The most consistent result across all anuran guilds was a negative association with the presence of urban land. Upland and wetland forests and emergent wetlands tended to be positively associated with anurans. Landscape metrics that represent edges and patch diversity also had generally positive associations, indicating that anurans benefit from a complex of habitats that include wetlands. In Iowa the most significant associations with relative abundance were the length of the edge between wetland and forest (positive) and the presence of urban land (negative). In Wisconsin the two most significant associations with relative abundance were forest area and agricultural area (both positive). Anurans had positive associations with agriculture in Wisconsin but not in Iowa. Remnant forest patches in agricultural landscapes may be providing refuges for some anuran species. Differences in anuran associations with deep water and permanent wetlands between the two states suggest opportunities for management action. Large-scale maps can contribute to predictive models of amphibian habitat use, but water quality and vegetation information collected from individual wetlands will likely be needed to strengthen those predictions. Landscape habitat analyses provide a framework for future experimental and intensive research on specific factors affecting the health of anurans. JF - Conservation Biology AU - Knutson, M G AU - Sauer, J R AU - Olsen, DA AU - Mossman, MJ AU - Hemesath, L M AU - Lannoo, MJ AD - Upper Midwest Environmental Sciences Center, U.S. Geological Survey, 2630 Fanta Reed Road, La Crosse, WI 54603, USA, melinda_knutson@usgs.gov Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 1437 EP - 1446 VL - 13 IS - 6 SN - 0888-8892, 0888-8892 KW - Frogs KW - USA, Iowa KW - USA, Wisconsin KW - landscape composition KW - toads KW - wetland fragmentation KW - Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts KW - Management KW - Toads KW - Amphibians KW - Abundance KW - Anura KW - Species Diversity KW - Habitat KW - Habitat fragmentation KW - Human impact KW - Restoration KW - Habitats KW - Species diversity KW - Wetlands KW - Populations KW - Species richness KW - Urban environments KW - SW 4070:Ecological impact of water development KW - Q5 08522:Protective measures and control KW - D 04712:Environmental degradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17438828?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Conservation+Biology&rft.atitle=Effects+of+Landscape+Composition+and+Wetland+Fragmentation+on+Frog+and+Toad+Abundance+and+Species+Richness+in+Iowa+and+Wisconsin%2C+U.S.A.&rft.au=Knutson%2C+M+G%3BSauer%2C+J+R%3BOlsen%2C+DA%3BMossman%2C+MJ%3BHemesath%2C+L+M%3BLannoo%2C+MJ&rft.aulast=Knutson&rft.aufirst=M&rft.date=1999-12-01&rft.volume=13&rft.issue=6&rft.spage=1437&rft.isbn=&rft.btitle=&rft.title=Conservation+Biology&rft.issn=08888892&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Species diversity; Abundance; Wetlands; Habitat; Restoration; Management; Habitat fragmentation; Species richness; Urban environments; Human impact; Habitats; Frogs; Toads; Amphibians; Species Diversity; Populations; Anura ER - TY - JOUR T1 - Population Demographics and Genetic Diversity in Remnant and Translocated Populations of Sea Otters AN - 17437663; 4655283 AB - The effects of small population size on genetic diversity and subsequent population recovery are theoretically predicted, but few empirical data are available to describe those relations. We use data from four remnant and three translocated sea otter (Enhydra lutris) populations to examine relations among magnitude and duration of minimum population size, population growth rates, and genetic variation. Mitochondrial (mt)DNA haplotype diversity was correlated with the number of years at minimum population size (r sub(s) = -0.741, p = 0.038) and minimum population size (r sub(s) = 0.709, p = 0.054). We found no relation between population growth and haplotype diversity, although growth was significantly greater in translocated than in remnant populations. Haplotype diversity in populations established from two sources was higher than in a population established from a single source and was higher than in the respective source populations. Haplotype frequencies in translocated populations of founding sizes of 4 and 28 differed from expected, indicating genetic drift and differential reproduction between source populations, whereas haplotype frequencies in a translocated population with a founding size of 150 did not. Relations between population demographics and genetic characteristics suggest that genetic sampling of source and translocated populations can provide valuable inferences about translocations. JF - Conservation Biology AU - Bodkin, J L AU - Ballachey, B E AU - Cronin, MA AU - Scribner, K T AD - Alaska Biological Science Center, Biological Resources Division, U.S. Geological Survey, 1011 E. Tudor Road, Anchorage, AK 99503, USA, james_bodkin@usgs.gov Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 1378 EP - 1385 VL - 13 IS - 6 SN - 0888-8892, 0888-8892 KW - Sea otter KW - Genetics Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Transplantation KW - Genetic diversity KW - Demography KW - Population genetics KW - Enhydra lutris KW - Mitochondrial DNA KW - Translocations KW - Founder effect KW - Conservation KW - Population levels KW - Reproduction KW - Gene frequency KW - Translocation KW - Conservation genetics KW - Genetic drift KW - Q1 08443:Population genetics KW - D 04672:Mammals KW - O 1050:Vertebrates, Urochordates and Cephalochordates KW - G 07290:Population genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17437663?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Conservation+Biology&rft.atitle=Population+Demographics+and+Genetic+Diversity+in+Remnant+and+Translocated+Populations+of+Sea+Otters&rft.au=Bodkin%2C+J+L%3BBallachey%2C+B+E%3BCronin%2C+MA%3BScribner%2C+K+T&rft.aulast=Bodkin&rft.aufirst=J&rft.date=1999-12-01&rft.volume=13&rft.issue=6&rft.spage=1378&rft.isbn=&rft.btitle=&rft.title=Conservation+Biology&rft.issn=08888892&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Population genetics; Transplantation; Genetic diversity; Demography; Mitochondrial DNA; Founder effect; Translocations; Conservation; Gene frequency; Reproduction; Population levels; Genetic drift; Conservation genetics; Translocation; Enhydra lutris ER - TY - JOUR T1 - Robustness of closed capture-recapture methods to violations of the closure assumption AN - 17435866; 4655215 AB - Closed-population capture-recapture methods have been used extensively in animal ecology, both by themselves and within the context of Pollock's robust design and multistate models, to estimate various parameters of population and community dynamics. The defining assumption of geographic and demographic closure (i.e., no births, deaths, immigration, or emigration) for the duration of sampling is restrictive and is likely to be violated in many field situations. I evaluated several types of violations of the closure assumption and found that completely random movement in and out of a study area does not introduce bias to estimators from closed-population methods, although it decreases precision. In addition, if capture probabilities vary only with time, the closed-population Lincoln-Petersen estimator is unbiased for the size of the superpopulation when there are only births/immigration or only deaths/emigration. However, for other cases of nonrandom movement, closed-population estimators were biased when movement was Markovian (dependent on the presence/absence of the animal in the previous time period), when an animal was allowed one entry to and one exit from the study area, or when there was trap response or heterogeneity among animals in capture probability. In addition, the probability that an animal is present and available for capture (e.g., breeding propensity) can be estimated using Pollock's robust design only when movement occurs at a broader temporal scale than that of sampling. JF - Ecology AU - Kendall, W L AD - USGS Patuxent Wildlife Research Center, 11510 American Holly Drive, Laurel, MD 20708-4017, USA, William.Kendall@usgs.gov Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 2517 EP - 2525 VL - 80 IS - 8 SN - 0012-9658, 0012-9658 KW - Ecology Abstracts KW - Capture-recapture studies KW - Sampling KW - Population dynamics KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17435866?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecology&rft.atitle=Robustness+of+closed+capture-recapture+methods+to+violations+of+the+closure+assumption&rft.au=Kendall%2C+W+L&rft.aulast=Kendall&rft.aufirst=W&rft.date=1999-12-01&rft.volume=80&rft.issue=8&rft.spage=2517&rft.isbn=&rft.btitle=&rft.title=Ecology&rft.issn=00129658&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Capture-recapture studies; Population dynamics; Sampling ER - TY - JOUR T1 - Giant panda (Ailuropoda melanoleuca) population dynamics and bamboo (subfamily Bambusoideae) life history: a structured population approach to examining carrying capacity when the prey are semelparous AN - 17459109; 4659461 AB - The giant panda, Ailuropoda melanoleuca, is a highly specialized Ursid whose diet consists almost entirely of various species of bamboo. Bamboo (Bambusoideae) is a grass subfamily whose species often exhibit synchronous semelparity. Synchronous semelparity can create local drops in carrying capacity for the panda. We modeled the interaction of pandas and their bamboo food resources with an age structured panda population model linked to a natural history model of bamboo biomass dynamics based on literature values of bamboo biomass, and giant panda life history dynamics. This paper reports the results of our examination of the interaction between pandas and their bamboo food resource and its implications for panda conservation. In the model all panda populations were well below the carrying capacity of the habitat. The giant panda populations growth was most sensitive to changes in birth rates and removal of reproductive aged individuals. Periodic starvation that has been documented in conjunction with bamboo die-offs is probably related to the inability to move to other areas within the region where bamboo is still available. Based on the results of this model, giant panda conservation should concentrate on keeping breeding individuals in the wild, keep corridors to different bamboo species open to pandas, and to concentrate research on bamboo life history. JF - Ecological Modelling AU - Carter, J AU - Ackleh, A S AU - Leonard, B P AU - Wang, H AD - US Geological Survey-National Wetlands Research Center, 700 Cajundome Boulevard, Lafayette, LA 70506-3152, USA, jacoby_carter@usgs.gov Y1 - 1999/11/15/ PY - 1999 DA - 1999 Nov 15 SP - 207 EP - 223 VL - 123 IS - 2-3 SN - 0304-3800, 0304-3800 KW - Ecology Abstracts KW - Models KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17459109?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Modelling&rft.atitle=Giant+panda+%28Ailuropoda+melanoleuca%29+population+dynamics+and+bamboo+%28subfamily+Bambusoideae%29+life+history%3A+a+structured+population+approach+to+examining+carrying+capacity+when+the+prey+are+semelparous&rft.au=Carter%2C+J%3BAckleh%2C+A+S%3BLeonard%2C+B+P%3BWang%2C+H&rft.aulast=Carter&rft.aufirst=J&rft.date=1999-11-15&rft.volume=123&rft.issue=2-3&rft.spage=207&rft.isbn=&rft.btitle=&rft.title=Ecological+Modelling&rft.issn=03043800&rft_id=info:doi/10.1016%2FS0304-3800%2899%2900145-3 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Models DO - http://dx.doi.org/10.1016/S0304-3800(99)00145-3 ER - TY - JOUR T1 - Decadal variations in the strength of ENSO teleconnections with precipitation in the western United States AN - 17439565; 4658553 AB - Changing patterns of correlations between the historical average June-November Southern Oscillation Index (SOI) and October-March precipitation totals for 84 climate divisions in the western US indicate a large amount of variability in SOI/precipitation relations on decadal time scales. Correlations of western US precipitation with SOI and other indices of tropical El Nino-Southern Oscillation (ENSO) processes were much weaker from 1920 to 1950 than during recent decades. This variability in teleconnections is associated with the character of tropical air-sea interactions as indexed by the number of out-of-phase SOI/tropical sea surface temperature (SST) episodes, and with decadal variability in the North Pacific Ocean as indexed by the Pacific Decadal Oscillation (PDO). ENSO teleconnections with precipitation in the western US are strong when SOI and NINO3 are out-of-phase and PDO is negative. ENSO teleconnections are weak when SOI and NINO3 are weakly correlated and PDO is positive. Decadal modes of tropical and North Pacific Ocean climate variability are important indicators of periods when ENSO indices, like SOI, can be used as reliable predictors of winter precipitation in the US. JF - International Journal of Climatology AU - McCabe, G J AU - Dettinger, MD AD - USGS, Denver Federal Center, MS 412, Denver, CO 80225, USA, gmccabe@usgs.gov Y1 - 1999/11/15/ PY - 1999 DA - 1999 Nov 15 SP - 1399 EP - 1410 VL - 19 IS - 13 SN - 0899-8418, 0899-8418 KW - ENSO KW - SOI KW - SST KW - USA, West KW - Water Resources Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Prediction KW - Variability KW - Water Temperature KW - Rainfall KW - Tropical Regions KW - Freshwater KW - Winter KW - El Nino KW - Correlation Analysis KW - Ocean-atmosphere system KW - Weather forecasting KW - Teleconnections KW - El Nino phenomena KW - Atmospheric precipitations KW - Marine KW - Climates KW - Climate KW - Brackish KW - Precipitation KW - Surface temperature KW - Southern Oscillation KW - Air-sea interaction KW - Oceans KW - Temperature anomalies KW - SW 0815:Precipitation KW - Q2 09244:Air-sea coupling KW - O 2070:Meteorology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17439565?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Climatology&rft.atitle=Decadal+variations+in+the+strength+of+ENSO+teleconnections+with+precipitation+in+the+western+United+States&rft.au=McCabe%2C+G+J%3BDettinger%2C+MD&rft.aulast=McCabe&rft.aufirst=G&rft.date=1999-11-15&rft.volume=19&rft.issue=13&rft.spage=1399&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Climatology&rft.issn=08998418&rft_id=info:doi/10.1002%2F%28SICI%291097-0088%2819991115%2919%3A133.3.CO%3B2-1 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Prediction; Atmospheric precipitations; Rainfall; Climate; Winter; Southern Oscillation; Surface temperature; Air-sea interaction; Ocean-atmosphere system; Temperature anomalies; Weather forecasting; El Nino phenomena; Teleconnections; Variability; Water Temperature; Oceans; El Nino; Climates; Correlation Analysis; Tropical Regions; Precipitation; Freshwater; Brackish; Marine DO - http://dx.doi.org/10.1002/(SICI)1097-0088(19991115)19:13<1399::AID-JOC457>3.3.CO;2-1 ER - TY - JOUR T1 - Impact of forest type and management strategy on avian densities in the Mississippi Alluvial Valley, USA AN - 17376775; 4600659 AB - 30 years) bottomland hardwood stands and 18 Breeding Bird Censuses in young (6-9 years old) cottonwood (Populus deltoides) plantations in the Mississippi Alluvial Valley. Avian species richness, diversity, and territory density were greater (p < 0.01) in bottomland hardwood stands than in intensively-managed cottonwood stands but these parameters were not impacted by selective timber harvest within bottomland hardwood stands nor by method of regeneration within cottonwood plantations (p 0.05). Even so, detrended correspondence analysis based on avian territory densities readily segregated forest types and silvicultural treatments. Timber harvest within bottomland hardwood stands resulted in a shift in bird communities toward those found in cottonwood stands by increasing the densities of early-successional species such as Indigo Bunting (Passerina cyanea), Yellow-breasted Chat (Icteria virens), and Common Yellowthroat (Geothlypis trichas). Conversely, regenerating cottonwood stands from root sprouts, rather than planting stem cuttings, resulted in a shift in bird communities toward those found in bottomland hardwood stands by increasing densities of species such as White-eyed Vireo (Vireo griseus) and Wood Thrush (Hylocichla mustelina). Tree species diversity, angular canopy cover, and midstory density were positively associated with bird species assemblages in bottomland hardwood stands, whereas vegetation density at ground level was positively associated with bird communities in cottonwood plantations. Conversion of agricultural fields to short-rotation cottonwood plantations results in increased breeding bird populations by adding up to 140 additional territories 40 ha super(-1). Even so, relative conservation values, derived from indicator species analysis and Partners in Flight concern scores, suggest that mature bottomland hardwood forests are twice as `valuable' for bird conservation as are cottonwood plantations. JF - Forest Ecology and Management AU - Twedt, D J AU - Wilson, R R AU - Henne-Kerr, J L AU - Hamilton, R B AD - USGS Patuxent Wildlife Research Center, 2524 South Frontage Road Vicksburg, MS USA Y1 - 1999/11/08/ PY - 1999 DA - 1999 Nov 08 SP - 261 EP - 274 PB - Elsevier Science B.V. VL - 123 IS - 2-3 SN - 0378-1127, 0378-1127 KW - Ecology Abstracts KW - Forest management KW - D 04700:Management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17376775?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forest+Ecology+and+Management&rft.atitle=Impact+of+forest+type+and+management+strategy+on+avian+densities+in+the+Mississippi+Alluvial+Valley%2C+USA&rft.au=Twedt%2C+D+J%3BWilson%2C+R+R%3BHenne-Kerr%2C+J+L%3BHamilton%2C+R+B&rft.aulast=Twedt&rft.aufirst=D&rft.date=1999-11-08&rft.volume=123&rft.issue=2-3&rft.spage=261&rft.isbn=&rft.btitle=&rft.title=Forest+Ecology+and+Management&rft.issn=03781127&rft_id=info:doi/10.1016%2FS0378-1127%2899%2900043-2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Forest management DO - http://dx.doi.org/10.1016/S0378-1127(99)00043-2 ER - TY - JOUR T1 - Monitoring sand deposition and erosion on spawning beds used by razorback suckers on the Green River downstream from flaming Gorge Dam using an array of load-cell scour sensors AN - 51956654; 2003-058088 JF - Eos, Transactions, American Geophysical Union AU - Carpenter, Michael C AU - Lockett, Joseph L, Jr AU - Wicks, Edmond J AU - Smith, George R AU - Cluer, Brian L AU - Blomgren, Nathan AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 448 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46 SN - 0096-3941, 0096-3941 KW - United States KW - scour KW - hydrology KW - gauging KW - sand KW - Gorge Dam KW - technology KW - monitoring KW - erosion KW - clastic sediments KW - loading KW - Yampa River KW - ecosystems KW - environmental analysis KW - biota KW - Green River KW - streamflow KW - deposition KW - sediments KW - ecology KW - Utah KW - Colorado KW - instruments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51956654?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Monitoring+sand+deposition+and+erosion+on+spawning+beds+used+by+razorback+suckers+on+the+Green+River+downstream+from+flaming+Gorge+Dam+using+an+array+of+load-cell+scour+sensors&rft.au=Carpenter%2C+Michael+C%3BLockett%2C+Joseph+L%2C+Jr%3BWicks%2C+Edmond+J%3BSmith%2C+George+R%3BCluer%2C+Brian+L%3BBlomgren%2C+Nathan%3BAnonymous&rft.aulast=Carpenter&rft.aufirst=Michael&rft.date=1999-11-01&rft.volume=80&rft.issue=46&rft.spage=448&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union, 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - biota; clastic sediments; Colorado; deposition; ecology; ecosystems; environmental analysis; erosion; gauging; Gorge Dam; Green River; hydrology; instruments; loading; monitoring; sand; scour; sediments; streamflow; technology; United States; Utah; Yampa River ER - TY - JOUR T1 - Embryotoxicity of Great Lakes lake trout extracts to developing rainbow trout AN - 18271959; 5327324 AB - Planar halogenated hydrocarbons (PHHs), such as polychlorinated dibenzo-p -dioxins, dibenzofurans, and biphenyls are present in aquatic systems, and are known to produce adverse effects in fish. This study investigated the embryotoxicity of PHH mixtures through the nanoinjection of environmental extracts into newly fertilized eggs from two strains of rainbow trout. Organic extracts were obtained from whole adult lake trout collected from Lake Michigan in 1988 and Lake Superior in 1994. The graded doses of the final extracts used for injection were quantified as 2,3,7,8-tetrachlorodibenzo-p-dioxin toxic-equivalents (TEQs) based on the concentrations of dioxins, furans and non-o -PCBs in each, and as equivalent amounts found in the eggs of the original lake trout (eggEQ). Total TEQs in the lake trout were 14.7 pg TEQ/g in the Lake Michigan sample and 7.3 pg TEQ/g in the Lake Superior sample. The extract of the Lake Michigan lake trout was embryotoxic to rainbow trout; LD50 values were 35 eggEQ (15-90, 95% F.L.) in the Arlee strain and 14 eggEQ (5-99, 95% F.L.) in the Erwin strain of rainbow trout. The LD50 values of the Lake Michigan extract in either of these strains of rainbow trout fall within the actual range of TCDD LD50 values based on TEQs. This indicates that an additive model of toxicity is appropriate to quantify PHHs in relation to early life stage mortality in fish. Gross lesions characteristic of exposure to PHHs (i.e. yolk-sac edema, craniofacial deformities, and hemorrhaging) increased in a dose-related manner. The lowest observable adverse effect concentrations (LOAEC) for these gross lesions and cumulative mortalities suggests that current concentrations of PHHs in lake trout from Lake Michigan are above a threshold for adverse effects and these compounds may have implications on the lack of recruitment in certain Great Lakes lake trout populations. JF - Aquatic Toxicology AU - Wright, P J AU - Tillit, DE AD - Columbia Environmental Research Center, Biological Resource Division, US Geological Survey, Department of Interior, 4200 New Haven Rd., Columbia, MO 65201, USA Y1 - 1999/11/01/ PY - 1999 DA - 1999 Nov 01 SP - 77 EP - 92 PB - Elsevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl] VL - 47 IS - 2 SN - 0166-445X, 0166-445X KW - North America, Great Lakes KW - North America, Superior L. KW - Rainbow trout KW - USA, Michigan L. KW - planar halogenated hydrocarbons KW - Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Toxicology Abstracts KW - USA, Superior L. KW - Fish eggs KW - Pollution effects KW - Embryonic Growth Stage KW - Sublethal Effects KW - Embryos KW - PCB KW - Freshwater pollution KW - Experimental Data KW - Mortality KW - Halogenated hydrocarbons KW - Hydrocarbons KW - Embryonic development KW - TCDD KW - Oncorhynchus mykiss KW - Toxicity KW - Trout KW - Water Pollution Effects KW - Fish Populations KW - Mortality causes KW - X 24156:Environmental impact KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18271959?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquatic+Toxicology&rft.atitle=Embryotoxicity+of+Great+Lakes+lake+trout+extracts+to+developing+rainbow+trout&rft.au=Wright%2C+P+J%3BTillit%2C+DE&rft.aulast=Wright&rft.aufirst=P&rft.date=1999-11-01&rft.volume=47&rft.issue=2&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=Aquatic+Toxicology&rft.issn=0166445X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Halogenated hydrocarbons; Fish eggs; Embryonic development; Pollution effects; Mortality causes; TCDD; Embryos; PCB; Freshwater pollution; Mortality; Hydrocarbons; Toxicity; Experimental Data; Sublethal Effects; Trout; Water Pollution Effects; Fish Populations; Embryonic Growth Stage; Oncorhynchus mykiss; USA, Superior L. ER - TY - JOUR T1 - Water chemistry in a nutrient and sediment control system near Owasco, New York AN - 18080100; 5141717 AB - Runoff from agricultural land is a significant source of non-point source pollution. Pollutants from agricultural land include nitrogen (N) and phosphorus (P) from fertilizers and animal manure, pathogens from manure, pesticides, and sediment. Reducing agricultural pollutants is important for improving water quality in many streams and lakes. Several systems have been developed to treat agricultural runoff. These include vegetated buffer strips, settling basins, tiled infiltration beds, and constructed wetlands. Collectively these systems are termed best management practices or BMPs. BMPs reduce pollutant concentrations and loads in runoff by infiltration into the soil, physical filtration by grass or other vegetation, adsorption on to soil and plants, bacterial decomposition, plant uptake, and sediment deposition. An added consideration in cold regions is the performance of BMPs in the winter months and during spring snowmelt when no vegetation is present. Another concern is that BMPs that include infiltration beds may reduce pollutants in runoff at the expense of ground-water quality. JF - Water Resources Impact AU - Komor, S C AD - U.S. Geological Survey, 30 Brown Road, Ithaca, NY 14850 USA, sckomor@usgs.gov Y1 - 1999/11// PY - 1999 DA - Nov 1999 SP - 19 EP - 21 VL - 1 IS - 6 SN - 1522-3175, 1522-3175 KW - USA, New York, Owasco KW - snowmelt KW - Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts KW - Manure KW - Phosphorus KW - Sediment KW - Man-induced effects KW - Nutrients KW - Water quality KW - Lakes KW - Fertilizers KW - Pollutants KW - Seasonal variations KW - Agricultural runoff KW - Sediment pollution KW - Animal wastes KW - Pathogens KW - Nonpoint pollution KW - Water pollution KW - Fate KW - Pesticides KW - Nutrients (mineral) KW - Chemical analysis KW - Water quality (Natural waters) KW - Runoff KW - P 2000:FRESHWATER POLLUTION KW - AQ 00002:Water Quality KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18080100?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Impact&rft.atitle=Water+chemistry+in+a+nutrient+and+sediment+control+system+near+Owasco%2C+New+York&rft.au=Komor%2C+S+C&rft.aulast=Komor&rft.aufirst=S&rft.date=1999-11-01&rft.volume=1&rft.issue=6&rft.spage=19&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Impact&rft.issn=15223175&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Pollutants; Pesticides; Man-induced effects; Nutrients (mineral); Water quality; Agricultural runoff; Chemical analysis; Fate; Water pollution; Sediment pollution; Fertilizers; Manure; Animal wastes; Pathogens; Nonpoint pollution; Seasonal variations; Lakes; Phosphorus; Sediment; Nutrients; Runoff; Water quality (Natural waters) ER - TY - JOUR T1 - Determination of Uptake Kinetics (Sampling Rates) by Lipid-Containing Semipermeable Membrane Devices (SPMDs) for Polycyclic Aromatic Hydrocarbons (PAHs) in Water AN - 17586484; 4674252 AB - The use of lipid-containing semipermeable membrane devices (SPMDs) is becoming commonplace, but very little sampling rate data are available for the estimation of ambient contaminant concentrations from analyte levels in exposed SPMDs. We determined the aqueous sampling rates (R sub(s)s; expressed as effective volumes of water extracted daily) of the standard (commercially available design) 1-g triolein SPMD for 15 of the priority pollutant (PP) polycyclic aromatic hydrocarbons (PAHs) at multiple temperatures and concentrations. Under the experimental conditions of this study, recovery-corrected R sub(s) values for PP PAHs ranged from approximately 1.0 to 8.0 L/d. These values would be expected to be influenced by significant changes (relative to this study) in water temperature, degree of biofouling, and current velocity-turbulence. Included in this paper is a discussion of the effects of temperature and octanol-water partition coefficient (K sub(ow)); the impacts of biofouling and hydrodynamics are reported separately. Overall, SPMDs responded proportionally to aqueous PAH concentrations; i.e., SPMD R sub(s) values and SPMD-water concentration factors were independent of aqueous concentrations. Temperature effects (10, 18, and 26 degree C) on R sub(s) values appeared to be complex but were relatively small. JF - Environmental Science & Technology AU - Huckins, J N AU - Petty, J D AU - Orazio, CE AU - Lebo, JA AU - Clark, R C AU - Gibson, V L AU - Gala, W R AU - Echols, K R AD - Columbia Environmental Research Center (CERC), U.S. Geological Survey, 4200 New Haven Road, Columbia, Missouri 65201, USA, James_Huckins@USGS.gov Y1 - 1999/11/01/ PY - 1999 DA - 1999 Nov 01 SP - 3918 EP - 3923 VL - 33 IS - 21 SN - 0013-936X, 0013-936X KW - PAH KW - Pollution Abstracts; Water Resources Abstracts KW - Biofouling KW - Semipermeable Membranes KW - Polycyclic aromatic hydrocarbons KW - Membranes KW - Water sampling KW - Hydrodynamics KW - Hydrocarbons KW - Lipids KW - Velocity KW - Aromatic Compounds KW - Pollutants KW - Kinetics KW - Experimental Design KW - Temperature Effects KW - Sampling KW - SW 5010:Network design KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17586484?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Determination+of+Uptake+Kinetics+%28Sampling+Rates%29+by+Lipid-Containing+Semipermeable+Membrane+Devices+%28SPMDs%29+for+Polycyclic+Aromatic+Hydrocarbons+%28PAHs%29+in+Water&rft.au=Huckins%2C+J+N%3BPetty%2C+J+D%3BOrazio%2C+CE%3BLebo%2C+JA%3BClark%2C+R+C%3BGibson%2C+V+L%3BGala%2C+W+R%3BEchols%2C+K+R&rft.aulast=Huckins&rft.aufirst=J&rft.date=1999-11-01&rft.volume=33&rft.issue=21&rft.spage=3918&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes990440u LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Kinetics; Lipids; Semipermeable Membranes; Hydrocarbons; Aromatic Compounds; Hydrodynamics; Sampling; Pollutants; Temperature Effects; Biofouling; Experimental Design; Velocity; Polycyclic aromatic hydrocarbons; Membranes; Water sampling DO - http://dx.doi.org/10.1021/es990440u ER - TY - JOUR T1 - Variation in Net Trophic Transfer Efficiencies among 21 PCB Congeners AN - 17586426; 4674231 AB - We tested the hypothesis that the efficiency with which fish retain polychlorinated biphenyl (PCB) congeners from their food strongly depends on K sub(ow) and degree of chlorination of the congener. We used diet information, determinations of concentrations of individual PCB congeners in both coho salmon (Oncorhynchus kisutch) and their prey, and bioenergetics modeling to estimate the efficiencies with which Lake Michigan coho salmon retain various PCB congeners from their food. The retention efficiency for the tetrachloro congeners averaged 38%, whereas retention efficiencies for higher chlorinated congeners ranged from 43 to 56%. Not including tetrachloro congeners, we found neither decreasing nor increasing trends in the efficiencies with which the coho salmon retained the PCB congeners from their food with either increasing K sub(ow) or increasing degree of chlorination of the PCB congeners. We concluded that (a) for PCB congeners with 5-8 chlorine atoms/molecule, K sub(ow) and degree of chlorination had little influence on the efficiency with which coho salmon retained the various PCB congeners in their food, and (b) the efficiency with which coho salmon retained tetrachloro PCB congeners in their food appeared to be slightly lower than that for higher chlorinated PCB congeners. JF - Environmental Science & Technology AU - Madenjian, C P AU - Schmidt, L J AU - Chernyak, S M AU - Elliott, R F AU - Desorcie, T J AU - Quintal, R T AU - Begnoche, L J AU - Hesselberg, R J AD - U.S. Geological Survey, Biological Resources Division, Great Lakes Science Center, 1451 Green Road, Ann Arbor, Michigan 48105, USA, chuck_madenjian@usgs.gov Y1 - 1999/11/01/ PY - 1999 DA - 1999 Nov 01 SP - 3768 EP - 3773 VL - 33 IS - 21 SN - 0013-936X, 0013-936X KW - Coho salmon KW - North America, Michigan L. KW - Oncorhynchus kisutch KW - USA, Michigan L. KW - mathematical models KW - ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Pollution Abstracts KW - Salmon KW - Diets KW - Experimental Data KW - Fish Diets KW - Bioenergetics KW - Polychlorinated Biphenyls KW - Retention KW - Freshwater fish KW - Trophic relationships KW - Food consumption KW - Bioaccumulation KW - Chlorination KW - PCB compounds KW - Food webs KW - PCB KW - P 2000:FRESHWATER POLLUTION KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17586426?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Variation+in+Net+Trophic+Transfer+Efficiencies+among+21+PCB+Congeners&rft.au=Madenjian%2C+C+P%3BSchmidt%2C+L+J%3BChernyak%2C+S+M%3BElliott%2C+R+F%3BDesorcie%2C+T+J%3BQuintal%2C+R+T%3BBegnoche%2C+L+J%3BHesselberg%2C+R+J&rft.aulast=Madenjian&rft.aufirst=C&rft.date=1999-11-01&rft.volume=33&rft.issue=21&rft.spage=3768&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes9903882 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Food consumption; Bioaccumulation; Bioenergetics; Trophic relationships; PCB; Food webs; Diets; Chlorination; Freshwater fish; PCB compounds; Salmon; Experimental Data; Fish Diets; Polychlorinated Biphenyls; Retention DO - http://dx.doi.org/10.1021/es9903882 ER - TY - JOUR T1 - Habitat associations of migrating and overwintering grassland birds in southern Texas AN - 17507375; 4697825 AB - We report on the habitat associations of 21 species of grassland birds overwintering in or migrating through southern Texas, during 1991-1992 and 1992-1993. Ninety percent of our grassland bird observations were made during winter and spring, and only 10% occurred during fall. Grassland species made up a high proportion of the total bird densities in grassland and shrub-grassland habitats, but much lower proportions in the habitats with more woody vegetation. Fewer grassland species were observed in grassland and woodland than in brushland, parkland, and shrub-grassland habitats. Grassland birds generally were found in higher densities in habitats that had woody canopy coverage of < 30%; densities of grassland birds were highest in shrub-grassland habitat and lowest in woodland habitat. Species that are grassland specialists on their breeding grounds tended to be more habitat specific during the nonbreeding season compared to shrub-grassland specialists, which were more general in their nonbreeding-habitat usage. Nonetheless, our data demonstrate that grassland birds occur in a variety of habitats during the nonbreeding season and seem to occupy a broader range of habitats than previously described. JF - Condor AU - Igl, L D AU - Ballard, B M AD - Northern Prairie Wildlife Research Center, U.S. Geological Survey, Biological Resources Division, 8711 37th Street SE, Jamestown, ND 58401, USA, larry_igl@usgs.gov Y1 - 1999/11// PY - 1999 DA - Nov 1999 SP - 771 EP - 782 VL - 101 IS - 4 SN - 0010-5422, 0010-5422 KW - Birds KW - USA, Texas KW - Ecology Abstracts KW - Aves KW - Grasslands KW - Breeding status KW - Habitat utilization KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17507375?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Condor&rft.atitle=Habitat+associations+of+migrating+and+overwintering+grassland+birds+in+southern+Texas&rft.au=Igl%2C+L+D%3BBallard%2C+B+M&rft.aulast=Igl&rft.aufirst=L&rft.date=1999-11-01&rft.volume=101&rft.issue=4&rft.spage=771&rft.isbn=&rft.btitle=&rft.title=Condor&rft.issn=00105422&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; Habitat utilization; Breeding status; Grasslands ER - TY - JOUR T1 - Life-history strategies of ungulates AN - 17486923; 4682195 AB - This Special Feature resulted from a symposium on life-history strategies of ungulates presented at the 78th Annual Meeting of the American Society of Mammalogists in Blacksburg, Virginia, in June 1998. The presentations at the symposium represented only a vignette of the wide variety of life-history strategies that exists among ungulates. The four papers that follow include treatises on birth-site selection of moose (Alces alces), sex-ratio correlates with dimorphism and risk of predation, optimal foraging relative to risk of predation, and the role of density dependence in shaping life-history traits of ungulates. A theme of risk of predation in shaping life-history traits is common to three of four papers. JF - Journal of Mammalogy AU - Leslie, DM Jr AU - Bowyer, R T AU - Kie, J G AD - Oklahoma Cooperative Fish and Wildlife Research Unit, United States Geological Survey, Biological Resources Division, Department of Zoology, Oklahoma State University, Stillwater, OK 74078-3051, USA Y1 - 1999/11// PY - 1999 DA - Nov 1999 SP - 1067 EP - 1069 VL - 80 IS - 4 SN - 0022-2372, 0022-2372 KW - Odd-toed ungulates KW - Cloven-hoofed ungulates KW - Ecology Abstracts KW - Perissodactyla KW - Foraging behavior KW - Life history KW - Sex ratio KW - Predation KW - Artiodactyla KW - Reproductive behavior KW - D 04672:Mammals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17486923?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Mammalogy&rft.atitle=Life-history+strategies+of+ungulates&rft.au=Leslie%2C+DM+Jr%3BBowyer%2C+R+T%3BKie%2C+J+G&rft.aulast=Leslie&rft.aufirst=DM&rft.date=1999-11-01&rft.volume=80&rft.issue=4&rft.spage=1067&rft.isbn=&rft.btitle=&rft.title=Journal+of+Mammalogy&rft.issn=00222372&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Perissodactyla; Artiodactyla; Life history; Sex ratio; Reproductive behavior; Foraging behavior; Predation ER - TY - JOUR T1 - Forest area and distribution in the Mississippi alluvial valley: implications for breeding bird conservation AN - 17484893; 4683126 AB - Knowing the current forest distribution and patch size characteristics is integral to the development of geographically defined, habitat-based conservation objectives for breeding birds. Towards this end, we classified 2.6 million ha of forest cover within the Mississippi Alluvial Valley using 1992 thematic mapper satellite imagery. Although historically this area, from southern Illinois to southern Louisiana, was dominated by forested wetlands, forest cover remains on less than 25% of the floodplain. Remaining forest cover is comprised of >38,000 discrete forest patches >2 ha. Mean patch area (64.1 plus or minus 5.2 ha; x plus or minus SE) was highly skewed towards small fragment size. Larger patches had a higher proportion of more hydric forest cover classes than did smaller patches which had a higher proportion of less hydric forest cover classes. Public lands accounted for 16% of remaining forested wetlands. Fewer than 100 forest patches exceeded our hypothesized habitat objective (4000 ha minimum contiguous forest area) intended to support self-sustaining populations of forest breeding birds. To increase the number of forest patches exceeding 4000 ha contiguous area, and thereby increase the likelihood of successful forest bird conservation, we recommend afforestation adjoining existing forest fragments greater than or equal to 1012 ha and focused within designated Forest Bird Conservation Regions. JF - Journal of Biogeography AU - Twedt, D J AU - Loesch, C R AD - USGS Patuxent Wildlife Research Center, 2524 South Frontage Road, Vicksburg, MS 39180, USA, dan_twedt@usgs.gov Y1 - 1999/11// PY - 1999 DA - Nov 1999 SP - 1215 EP - 1224 VL - 26 IS - 6 SN - 0305-0270, 0305-0270 KW - Birds KW - USA KW - Ecology Abstracts KW - Aves KW - Flood plains KW - Conservation KW - Forests KW - Habitat fragmentation KW - Avifauna KW - D 04671:Birds KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17484893?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Biogeography&rft.atitle=Forest+area+and+distribution+in+the+Mississippi+alluvial+valley%3A+implications+for+breeding+bird+conservation&rft.au=Twedt%2C+D+J%3BLoesch%2C+C+R&rft.aulast=Twedt&rft.aufirst=D&rft.date=1999-11-01&rft.volume=26&rft.issue=6&rft.spage=1215&rft.isbn=&rft.btitle=&rft.title=Journal+of+Biogeography&rft.issn=03050270&rft_id=info:doi/10.1046%2Fj.1365-2699.1999.00348.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; Habitat fragmentation; Forests; Conservation; Avifauna; Flood plains DO - http://dx.doi.org/10.1046/j.1365-2699.1999.00348.x ER - TY - JOUR T1 - Ontogenetic Habitat Shifts of Juvenile Bear Lake Sculpin AN - 17480611; 4678726 AB - Bear lake sculpin Cottus extensus exhibit ontogenetic habitat shifts during their initial year of life. Distribution and habitat switching was measured with bimonthly bottom-trawl surveys repeated throughout the summer. Patterns of daily growth increments on otoliths were used to measure the history of habitat residence, individual size at the time of the habitat switch, and habitat-specific growth rates. Laboratory experiments and known-age fish confirmed daily increment formation of otoliths. After dispersing during an initial pelagic larval stage, postlarval juveniles settled in both the warm, food-rich littoral zone and the cold, unproductive profundal zone. During summer, initial profundal-zone inhabitants underwent a unidirectional habitat shift to the more productive littoral zone. Fish that moved to the littoral zone grew twice as fast as those in the profundal zone and encountered little apparent predation mortality risk there. Habitat shifts were therefore consistent with both growth optimization and predatory avoidance. However, shifts occurred at a wide range of body sizes throughout the summer. The large spatial scale of the lake, limited swimming ability of juvenile fish, diel migratory behavior, and lack of complex habitat structure may preclude shifts at discrete body sizes for this species. JF - Transactions of the American Fisheries Society AU - Ruzycki, J R AU - Wurtsbaugh, WA AD - National Park Service, Aquatic Resources Center, Post Office Box 168, Yellowstone National Park, Wyoming 82190, USA, jim_ruzycki@nps.gov Y1 - 1999/11// PY - 1999 DA - Nov 1999 SP - 1201 EP - 1212 VL - 128 IS - 6 SN - 0002-8487, 0002-8487 KW - Bear lake sculpin KW - Juveniles KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Age KW - Lakes KW - Otoliths KW - Predation KW - Cottus extensus KW - Surveys KW - Ontogeny KW - Habitat selection KW - D 04668:Fish KW - Q1 08423:Behaviour UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17480611?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Ontogenetic+Habitat+Shifts+of+Juvenile+Bear+Lake+Sculpin&rft.au=Ruzycki%2C+J+R%3BWurtsbaugh%2C+WA&rft.aulast=Ruzycki&rft.aufirst=J&rft.date=1999-11-01&rft.volume=128&rft.issue=6&rft.spage=1201&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Otoliths; Predation; Ontogeny; Habitat selection; Lakes; Age; Surveys; Cottus extensus ER - TY - JOUR T1 - Accumulation of Butyltins in Sediments and Lipid Tissues of the Asian Clam, Potamocorbula amurensis, Near Mare Island Naval Shipyard, San Francisco Bay AN - 17456309; 4670470 AB - Studies of butyltin compounds in soil, benthic sediments and the Asian clam Potamocorbula amurensis were conducted at the former Mare Island Naval Shipyard, and nearby Mare Island and Carquinez Straits in San Francisco Bay, California. Soils from a sandblast abrasives dump site at the shipyard contained low concentrations of mono-, di- and tributyltin (0.3-52 ng/g, total butyltin). Similarly, concentrations of total butyltin in benthic sediments from nearby Mare Island and Carquinez Straits ranged from 1.3 to 8.1 ng/g. In contrast, clams accumulated much greater concentrations (152-307 ng/g, total butyltin). Tributyltin (TBT) and dibutyltin (DBT) made up from 54-85% to 15-46%, respectively, of the total butyltin body burden of the clams. Biota Sediment Accumulation Factors (BSAFs) for butyltins in Potamocorbula were in reasonable agreement with literature values; they are greater than those of neutral hydrophobic compounds, suggesting that partitioning and binding processes may be involved in bioaccumulation. Tributyltin is a potent endocrine disrupting chemical. There is potential for long-term chronic effects of TBT in San Francisco Bay. JF - Marine Pollution Bulletin AU - Pereira, W E AU - Wade, T L AU - Hostettler, F D AU - Parchaso, F AD - US Geological Survey, Mail Stop 409, 345 Middlefield Road, Menlo Park, CA 94025, USA, fdhostet@usgs.gov Y1 - 1999/11// PY - 1999 DA - Nov 1999 SP - 1005 EP - 1010 VL - 38 IS - 11 SN - 0025-326X, 0025-326X KW - Potamocorbula amurensis KW - USA, California, San Francisco Bay KW - butyltin KW - shipyards KW - Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Toxicology Abstracts; Water Resources Abstracts; Pollution Abstracts KW - Ships KW - Tissues KW - Lipids KW - Pollution effects KW - Tin Compounds KW - Sediment Contamination KW - Mollusca KW - Dibutyltin KW - Marine KW - Sediment pollution KW - Tin compounds KW - Clams KW - Tributyltin KW - Shipyards KW - Butyltin KW - Bivalvia KW - Soil pollution KW - Bioaccumulation KW - Marine pollution KW - Water Pollution Effects KW - Pesticides KW - INE, USA, California, San Francisco Bay KW - Marine molluscs KW - Organotin compounds KW - Benthos KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - X 24166:Environmental impact KW - P 1000:MARINE POLLUTION KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution KW - X 24163:Metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17456309?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Pollution+Bulletin&rft.atitle=Accumulation+of+Butyltins+in+Sediments+and+Lipid+Tissues+of+the+Asian+Clam%2C+Potamocorbula+amurensis%2C+Near+Mare+Island+Naval+Shipyard%2C+San+Francisco+Bay&rft.au=Pereira%2C+W+E%3BWade%2C+T+L%3BHostettler%2C+F+D%3BParchaso%2C+F&rft.aulast=Pereira&rft.aufirst=W&rft.date=1999-11-01&rft.volume=38&rft.issue=11&rft.spage=1005&rft.isbn=&rft.btitle=&rft.title=Marine+Pollution+Bulletin&rft.issn=0025326X&rft_id=info:doi/10.1016%2FS0025-326X%2899%2900124-1 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Tin compounds; Sediment pollution; Bioaccumulation; Marine molluscs; Pollution effects; Shipyards; Tributyltin; Dibutyltin; Soil pollution; Pesticides; Butyltin; Benthos; Bivalvia; Tissues; Marine pollution; Lipids; Mollusca; Organotin compounds; Ships; Tin Compounds; Water Pollution Effects; Sediment Contamination; Clams; INE, USA, California, San Francisco Bay; Marine DO - http://dx.doi.org/10.1016/S0025-326X(99)00124-1 ER - TY - JOUR T1 - Reference conditions for giant sequoia forest restoration: Structure, process, and precision AN - 17429231; 4650150 AB - National Park Service policy directs that more natural conditions be restored to giant sequoia groves, which have been altered by a century of fire exclusion. Efforts to find a reasonable and practical definition of "natural" have helped drive scientists and land managers to use past grove conditions as reference conditions for restoration. Extensive research aimed at determining reference conditions has demonstrated that past fire regimes can be characterized with greater precision than past grove structures. Difficulty and imprecision in determining past grove structure has helped fuel a debate between "structural restorationists," who believe that forest structure should be restored mechanically before fire is reintroduced, and "process restorationists," who believe that simple reintroduction of fire is appropriate. I evaluate old and new studies from sequoia groves to show that some of the arguments of both groups have been flawed. Importantly, it appears that restoration of fire without a preceding mechanical restoration may restore the pre-Euro-American structure of sequoia groves, at least within the bounds of our imprecise knowledge of past grove structure. However, the same may not be true for all forest types that have experienced lengthy fire exclusion. Our ability to draw robust generalizations about fire's role in forest restoration will depend heavily on a thorough understanding of past and present interactions among climate, fire, and forest structure. Use of reference conditions will be central to developing this understanding. JF - Ecological Applications AU - Stephenson, N L AD - U.S. Geological Survey, Western Ecological Research Center, Sequoia and Kings Canyon Field Station, Three Rivers, California 93271-9651 USA, Nathan_L._Stephenson@usgs.gov Y1 - 1999/11// PY - 1999 DA - Nov 1999 SP - 1253 EP - 1265 VL - 9 IS - 4 SN - 1051-0761, 1051-0761 KW - USA, California KW - Ecology Abstracts KW - Fires KW - Forest management KW - Sequoia KW - Environmental restoration KW - Disturbance KW - D 04715:Reclamation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17429231?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Applications&rft.atitle=Reference+conditions+for+giant+sequoia+forest+restoration%3A+Structure%2C+process%2C+and+precision&rft.au=Stephenson%2C+N+L&rft.aulast=Stephenson&rft.aufirst=N&rft.date=1999-11-01&rft.volume=9&rft.issue=4&rft.spage=1253&rft.isbn=&rft.btitle=&rft.title=Ecological+Applications&rft.issn=10510761&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Sequoia; Environmental restoration; Forest management; Fires; Disturbance ER - TY - JOUR T1 - Water-Sediment Controversy in Setting Environmental Standards for Selenium AN - 17422296; 4646794 AB - A substantial amount of laboratory and field research on selenium effects to biota has been accomplished since the national water quality criterion was published for selenium in 1987. Many articles have documented adverse effects on biota at concentrations below the current chronic criterion of 5 mu g/L. This commentary will present information to support a national water quality criterion for selenium of 2 mu g/L, based on a wide array of support from federal, state, university, and international sources. Recently, two articles have argued for a sediment-based criterion and presented a model for deriving site-specific criteria. In one example, they calculate a criterion of 31 mu g/L for a stream with a low sediment selenium toxicity threshold and low site-specific sediment total organic carbon content, which is substantially higher than the national criterion of 5 mu g/L. Their basic premise for proposing a sediment-based method has been critically reviewed and problems in their approach are discussed. JF - Ecotoxicology and Environmental Safety AU - Hamilton, S J AU - Lemly, AD AD - U.S. Geological Survey, Ecotoxicology Research Station, 31247 436th Avenue, Yankton, 57078-6364, South Dakota, steve-hamilton@usgs.gov Y1 - 1999/11// PY - 1999 DA - Nov 1999 SP - 227 EP - 235 PB - Academic Press VL - 44 IS - 3 SN - 0147-6513, 0147-6513 KW - Toxicology Abstracts; Pollution Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Sediment pollution KW - Organic Carbon KW - Environmental Quality KW - Water quality criteria KW - Threshold limits KW - Toxicity KW - Environmental legislation KW - Water quality control KW - Standardization KW - Selenium KW - Water Quality Standards KW - Literature reviews KW - Reviews KW - Sediment Contamination KW - Standards KW - X 24230:Legislation & recommended standards KW - P 9000:ENVIRONMENTAL ACTION KW - SW 3070:Water quality control KW - Q5 08505:Prevention and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17422296?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecotoxicology+and+Environmental+Safety&rft.atitle=Water-Sediment+Controversy+in+Setting+Environmental+Standards+for+Selenium&rft.au=Hamilton%2C+S+J%3BLemly%2C+AD&rft.aulast=Hamilton&rft.aufirst=S&rft.date=1999-11-01&rft.volume=44&rft.issue=3&rft.spage=227&rft.isbn=&rft.btitle=&rft.title=Ecotoxicology+and+Environmental+Safety&rft.issn=01476513&rft_id=info:doi/10.1006%2Feesa.1999.1833 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Water quality control; Selenium; Sediment pollution; Literature reviews; Environmental legislation; Standardization; Reviews; Threshold limits; Water quality criteria; Standards; Water Quality Standards; Environmental Quality; Organic Carbon; Sediment Contamination; Toxicity DO - http://dx.doi.org/10.1006/eesa.1999.1833 ER - TY - JOUR T1 - Oxidation of methyl halides by the facultative methylotroph strain IMB-1 AN - 17347136; 4640709 AB - Washed cell suspensions of the facultative methylotroph strain IMB-1 grown on methyl bromide (MeBr) were able to consume methyl chloride (MeCl) and methyl iodide (MeI) as well as MeBr. Consumption of > 100 mu M MeBr by cells grown on glucose, acetate, or monomethylamine required induction. Induction was inhibited by chloramphenicol. However, cells had a constitutive ability to consume low concentrations (<20 nM) of MeBr. Glucose-grown cells were able to readily oxidize [ super(14)C] formaldehyde to super(14)CO sub(2) but had only a small capacity for oxidation of [ super(14)C]methanol. Preincubation of cells with MeBr did not affect either activity, but MeBr-induced cells had a greater capacity for [ super(14)C]MeBr oxidation than did cells without preincubation. Consumption of MeBr was inhibited by MeI, and MeCl consumption was inhibited by MeBr. No inhibition of MeBr consumption occurred with methyl fluoride, propyl iodide, dibromomethane, dichloromethane, or difluoromethane, and in addition cells did not oxidize any of these compounds. Cells displayed Michaelis-Menten kinetics for the various methyl halides, with apparent K sub(s) values of 190, 280, and 6,100 nM for MeBr, MeI, and MeCl, respectively. These results suggest the presence of a single oxidation enzyme system specific for methyl halides (other than methyl fluoride) which runs through formaldehyde to CO sub(2). The ease of induction of methyl halide oxidation in strain IMB-1 should facilitate its mass culture for the purpose of reducing MeBr emissions to the atmosphere from fumigated soils. JF - Applied and Environmental Microbiology AU - Schaefer, J K AU - Oremland, R S AD - U.S. Geological Survey, Menlo Park, California 94025, USA, roremlan@usgs.gov Y1 - 1999/11// PY - 1999 DA - Nov 1999 SP - 5035 EP - 5041 VL - 65 IS - 11 SN - 0099-2240, 0099-2240 KW - methyl bromide KW - methyl chloride KW - methyl halides KW - methyl iodide KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Methylotrophic bacteria KW - Oxidation KW - Formaldehyde KW - Carbon dioxide KW - A 01016:Microbial degradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17347136?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Oxidation+of+methyl+halides+by+the+facultative+methylotroph+strain+IMB-1&rft.au=Schaefer%2C+J+K%3BOremland%2C+R+S&rft.aulast=Schaefer&rft.aufirst=J&rft.date=1999-11-01&rft.volume=65&rft.issue=11&rft.spage=5035&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Oxidation; Formaldehyde; Methylotrophic bacteria; Carbon dioxide ER - TY - JOUR T1 - Geology and evolution of lakes in north-central Florida AN - 17387452; 4613431 AB - Fluid exchange between surficial waters and groundwater in karst environments, and the processes that control exchange, are of critical concern to water management districts and planners. High-resolution seismic data were collected from 30 lakes of north-central Florida. In each case study, lake structure and geomorphology were controlled by solution and/or mechanical processes. Processes that control lake development are twofold: (1) karstification or dissolution of the underlying limestone, and (2) the collapse, subsidence, or slumping of overburden to form sinkholes. Initial lake formation is directly related to the karst topography of the underlying host limestone. Case studies have shown that lakes can be divided by geomorphic types into progressive developmental phases: (1) active subsidence or collapse phase (young); (2) transitional phase (middle age); (3) baselevel phase (mature); and (4) polje (drowned prairie)--broad flat-bottom that have one or all phases of sinkhole. Using these criteria, Florida lakes can be classified by size, fill, subsurface features, and geomorphology. JF - Environmental Geology AU - Kindinger, J L AU - Davis, J B AU - Flocks, J G AD - US Geological Survey, Center for Coastal Geology, 600 4th St. South, St. Petersburg, FL 33701-4802, USA, jkininger@usgs.gov Y1 - 1999/10/21/ PY - 1999 DA - 1999 Oct 21 SP - 0301 EP - 0321 PB - Springer-Verlag VL - 38 IS - 4 SN - 0943-0105, 0943-0105 KW - USA, Florida KW - karst KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Water Management KW - Seismic Studies KW - Seismic data KW - Karst KW - Lakes KW - Geomorphology KW - Surface-groundwater Relations KW - Water management KW - Ground water KW - Geology KW - SW 0810:General KW - Q2 09171:Dynamics of lakes and rivers KW - SW 6050:Rock mechanics and geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17387452?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Geology&rft.atitle=Geology+and+evolution+of+lakes+in+north-central+Florida&rft.au=Kindinger%2C+J+L%3BDavis%2C+J+B%3BFlocks%2C+J+G&rft.aulast=Kindinger&rft.aufirst=J&rft.date=1999-10-21&rft.volume=38&rft.issue=4&rft.spage=0301&rft.isbn=&rft.btitle=&rft.title=Environmental+Geology&rft.issn=09430105&rft_id=info:doi/10.1007%2Fs002540050428 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Lakes; Geomorphology; Water management; Ground water; Seismic data; Geology; Water Management; Surface-groundwater Relations; Seismic Studies; Karst DO - http://dx.doi.org/10.1007/s002540050428 ER - TY - JOUR T1 - Hydrochemical evidence for mixing of river water and groundwater during high-flow conditions, lower Suwannee River basin, Florida, USA AN - 17386315; 4613439 AB - Karstic aquifers are highly susceptible to rapid infiltration of river water, particularly during periods of high flow. Following a period of sustained rainfall in the Suwannee River basin, Florida, USA, the stage of the Suwannee River rose from 3.0 to 5.88 m above mean sea level in April 1996 and discharge peaked at 360 m super(3)/s. During these high-flow conditions, water from the Suwannee River migrated directly into the karstic Upper Floridan aquifer, the main source of water supply for the area. Changes in the chemical composition of groundwater were quantified using naturally occurring geochemical tracers and mass-balance modeling techniques. Mixing of river water with groundwater was indicated by a decrease in the concentrations of calcium, silica, and super(222)Rn; and by an increase in dissolved organic carbon (DOC), tannic acid, and chloride, compared to low-flow conditions in water from a nearby monitoring well, Wingate Sink, and Little River Springs. The proportion (fraction) of river water in groundwater ranged from 0.13 to 0.65 at Wingate Sink and from 0.5 to 0.99 at well W-17258, based on binary mixing models using various tracers. The effectiveness of a natural tracer in quantifying mixing of river water and groundwater was related to differences in tracer concentration of the two end members and how conservatively the tracer reacted in the mixed water. Solutes with similar concentrations in the two end-member waters (Na, Mg, K, Cl, SO sub(4), SiO sub(2)) were not as effective tracers for quantifying mixing of river water and groundwater as those with larger differences in end-member concentrations (Ca, tannic acid, DOC, super(222)Rn, HCO sub(3)). JF - Hydrogeology Journal AU - Crandall, CA AU - Katz, B G AU - Hirten, J J AD - US Geological Survey, 227 N. Bronough St., Suite 3015, Tallahassee, Florida 32301, USA, crandall@usgs.gov Y1 - 1999/10/21/ PY - 1999 DA - 1999 Oct 21 SP - 0454 EP - 0467 PB - Springer-VerlagLOC: BerlinLOC: HeidelbergJID: 10040 VL - 7 IS - 5 SN - 1431-2174, 1431-2174 KW - USA, Florida, Suwannee R. KW - Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Flow KW - River Basins KW - Water mixing KW - Water resources KW - Karst KW - Freshwater KW - Migration KW - Mixing KW - Water analysis KW - Tracers KW - Solutes KW - Catchment areas KW - Ground water KW - Quantitative Analysis KW - Tracer techniques KW - Chemical Composition KW - Rivers KW - Chemical analysis (see also Individual techniques) KW - Chemical composition KW - Streams (in natural channels) KW - Water supply KW - Surface-groundwater Relations KW - River water KW - High Flow KW - Migrations KW - AQ 00001:Water Resources and Supplies KW - Q2 09184:Composition of water KW - SW 0810:General KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17386315?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrogeology+Journal&rft.atitle=Hydrochemical+evidence+for+mixing+of+river+water+and+groundwater+during+high-flow+conditions%2C+lower+Suwannee+River+basin%2C+Florida%2C+USA&rft.au=Crandall%2C+CA%3BKatz%2C+B+G%3BHirten%2C+J+J&rft.aulast=Crandall&rft.aufirst=CA&rft.date=1999-10-21&rft.volume=7&rft.issue=5&rft.spage=0454&rft.isbn=&rft.btitle=&rft.title=Hydrogeology+Journal&rft.issn=14312174&rft_id=info:doi/10.1007%2Fs100400050218 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Chemical composition; Water mixing; River water; Ground water; Water resources; Tracer techniques; Water analysis; Water supply; Chemical analysis (see also Individual techniques); Flow; Solutes; Tracers; Catchment areas; Migrations; Karst; Streams (in natural channels); Mixing; Rivers; River Basins; Surface-groundwater Relations; High Flow; Quantitative Analysis; Chemical Composition; Migration; Freshwater DO - http://dx.doi.org/10.1007/s100400050218 ER - TY - JOUR T1 - Metolachlor and Its Metabolites in Tile Drain and Stream Runoff in the Canajoharie Creek Watershed AN - 17581382; 4639032 AB - Water samples collected during April-November 1997 from tile drains beneath cultivated fields in central New York indicate that two metabolites of the herbicide metolachlor-metolachlor ESA (ethanesulfonic acid) and OA (oxanilic acid)-can persist in agricultural soils for 4 or more years after application and that fine-grained soils favor the transport of metolachlor ESA over metolachlor and metolachlor OA. Concentrations of metolachlor ESA from the tile drains ranged from 3.27 to 23.4 mu g/L (200-1800 times higher than those of metolachlor), metolachlor OA concentrations ranged from 1.14 to 13.5 mu g/L, and metolachlor concentrations ranged from less than 0.01 to 0.1 mu g/L. In the receiving stream, concentrations of metolachlor ESA were always below 0.6 mu g/L except during a November storm, when concentrations reached 0.85 mu g/L. Concentrations of metolachlor ESA in the stream were 2-45 times higher than those of metolachlor, reflecting the greater relative concentrations of metolachlor in surface water runoff than in tile drain runoff. These results are consistent with findings in other studies that acetanilide herbicide degredates are found in much higher concentrations than parent compounds in both surface water and groundwater. JF - Environmental Science & Technology AU - Phillips, P J AU - Wall, G R AU - Thurman, E M AU - Eckhardt, DA AU - Vanhoesen, J AD - U.S. Geological Survey, 425 Jordan Road, Troy, NY 12180, USA, pjphilli@usgs.gov Y1 - 1999/10/15/ PY - 1999 DA - 1999 Oct 15 SP - 3531 EP - 3537 VL - 33 IS - 20 SN - 0013-936X, 0013-936X KW - Metolachlor KW - USA, New York, Canajoharie Creek KW - USA, New York, Canajoharie Creek Watershed KW - metolachlor KW - oxanilic acid KW - Pollution Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Tile Drains KW - Agricultural Runoff KW - Water sampling KW - Water Pollution Sources KW - Agricultural pollution KW - Pollution dispersion KW - Herbicides KW - Metabolites KW - Watersheds KW - Streams KW - Pollutant persistence KW - Stream Pollution KW - Agricultural runoff KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17581382?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Metolachlor+and+Its+Metabolites+in+Tile+Drain+and+Stream+Runoff+in+the+Canajoharie+Creek+Watershed&rft.au=Phillips%2C+P+J%3BWall%2C+G+R%3BThurman%2C+E+M%3BEckhardt%2C+DA%3BVanhoesen%2C+J&rft.aulast=Phillips&rft.aufirst=P&rft.date=1999-10-15&rft.volume=33&rft.issue=20&rft.spage=3531&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes9811997 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Agricultural pollution; Pollution dispersion; Pollutant persistence; Metabolites; Herbicides; Water sampling; Watersheds; Streams; Agricultural runoff; Tile Drains; Agricultural Runoff; Water Pollution Sources; Stream Pollution DO - http://dx.doi.org/10.1021/es9811997 ER - TY - JOUR T1 - Changes in proximate composition and somatic energy content for Pacific sand lance (Ammodytes hexapterus) from Kachemak Bay, Alaska relative to maturity and season AN - 17403979; 4627154 AB - Mean dry-weight energy values of adult Pacific sand lance (Ammodytes hexapterus) peaked in spring and early summer (20.91 kJg super(-1) for males, 21.08 kJg super(-1) for females), then declined by about 25% during late summer and fall (15.91 kJg super(-1) for males, 15.74 kJg super(-1) for females). Late summer declines in energy density paralleled gonadal development. Gender differences in energy density (males < females) were only apparent from August to October. Adult sand lance spawn in October, entering the winter with close to their minimum whole body energy content. Juvenile sand lance exhibited a relatively constant protein to lipid ratio until they reached 80 mm fork length. Thereafter, relative proportions of protein remained constant while lipid proportions increased significantly. Dry weight energy densities of juveniles increased from a minimum 16.67 kJg super(-1) to a maximum of 19.68 kJg super(-1), and (per g) are higher than adults in late summer. The seasonal food value of adult sand lance to predators varies markedly, but maximum energetic value coincides with important feeding periods for marine mammals, fish, and seabirds. JF - Journal of Experimental Marine Biology and Ecology AU - Robards, MD AU - Anthony, JA AU - Rose, G A AU - Piatt, J F AD - U.S.G.S. Biological Resources Division, Alaska Biological Sciences Center, 1011 E. Tudor Road, Anchorage, AK 99503, USA, martin_robards@usgs.gov Y1 - 1999/10/15/ PY - 1999 DA - 1999 Oct 15 SP - 245 EP - 258 VL - 242 IS - 2 SN - 0022-0981, 0022-0981 KW - Pacific sand lance KW - seasonal variations KW - Ecology Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Marine KW - Biochemical composition KW - INE, USA, Alaska, Kachemak Bay KW - Body conditions KW - Bioenergetics KW - Ammodytes hexapterus KW - Sexual maturity KW - Animal reproductive organs KW - Lipids KW - Proteins KW - bioenergetics KW - Q1 08346:Physiology, biochemistry, biophysics KW - D 04668:Fish KW - O 1050:Vertebrates, Urochordates and Cephalochordates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17403979?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Experimental+Marine+Biology+and+Ecology&rft.atitle=Changes+in+proximate+composition+and+somatic+energy+content+for+Pacific+sand+lance+%28Ammodytes+hexapterus%29+from+Kachemak+Bay%2C+Alaska+relative+to+maturity+and+season&rft.au=Robards%2C+MD%3BAnthony%2C+JA%3BRose%2C+G+A%3BPiatt%2C+J+F&rft.aulast=Robards&rft.aufirst=MD&rft.date=1999-10-15&rft.volume=242&rft.issue=2&rft.spage=245&rft.isbn=&rft.btitle=&rft.title=Journal+of+Experimental+Marine+Biology+and+Ecology&rft.issn=00220981&rft_id=info:doi/10.1016%2FS0022-0981%2899%2900102-1 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Biochemical composition; Body conditions; Bioenergetics; Lipids; Animal reproductive organs; Sexual maturity; Proteins; bioenergetics; Ammodytes hexapterus; INE, USA, Alaska, Kachemak Bay; Marine DO - http://dx.doi.org/10.1016/S0022-0981(99)00102-1 ER - TY - JOUR T1 - Processes governing phytoplankton blooms in estuaries 1: The local production-loss balance AN - 17487759; 4682510 AB - The formation and spatial distribution of phytoplankton blooms in estuaries are controlled by (1) local mechanisms, which determine the production-loss balance for a water column at a particular spatial location (i.e. control if a bloom is possible), and (2) transport-related mechanisms, which govern biomass distribution (i.e. control if and where a bloom actually occurs). In this study, the first of a 2-paper series, we use a depth-averaged numerical model as a theoretical tool to describe how interacting local conditions (water column height, light availability, benthic grazing) influence the local balance between phytoplankton sources and sinks. We also explore trends in the spatial variability of the production-loss balance across the topographic gradients between deep channels and lateral shoals which are characteristic of shallow estuaries. For example, under conditions of high turbidity and slow benthic grazing the highest rates of phytoplankton population growth are found in the shallowest regions. On the other hand, with low turbidity and rapid benthic grazing the highest growth rates occur in the deeper areas. We also explore the effects of semidiurnal tidal variation in water column height, as well as spring-neap variability. Local population growth in the shallowest regions is very sensitive to tidal-scale shallowing and deepening of the water column, especially in the presence of benthic grazing. A spring-neap signal in population growth rate is also prominent in the shallow areas. Population growth in deeper regions is less sensitive to temporal variations in tidal elevation. These results show that both shallow and deep regions of estuaries can act as sources or sinks for phytoplankton biomass, depending on the local conditions of mean water column height, tidal amplitude, light-limited growth rate, and consumption by grazers. JF - Marine Ecology Progress Series AU - Lucas, LV AU - Koseff, J R AU - Cloern, JE AU - Monismith, S G AU - Thompson, J K AD - United States Geological Survey, 345 Middlefield Road, MS #496, Menlo Park, CA 94025, USA, llucas@usgs.gov Y1 - 1999/10/14/ PY - 1999 DA - 1999 Oct 14 SP - 1 EP - 15 VL - 187 SN - 0171-8630, 0171-8630 KW - Water column height KW - Water Resources Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology; Ecology Abstracts; Oceanic Abstracts KW - Water depth KW - Algal blooms KW - Eutrophication KW - Phytoplankton KW - Benthic environment KW - Tidal effects KW - Water column KW - Models KW - Water Depth KW - Transport processes KW - Mixing processes KW - Algae KW - Estuarine dynamics KW - Light intensity KW - Grazing KW - Tidal cycles KW - Estuaries KW - Brackish KW - Biomass KW - Bathymetry KW - Tides KW - Light effects KW - Zoobenthos KW - Turbidity KW - O 1070:Ecology/Community Studies KW - K 03009:Algae KW - D 04627:Algae/lichens KW - D 04003:Modeling, mathematics, computer applications KW - SW 0890:Estuaries UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17487759?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Ecology+Progress+Series&rft.atitle=Processes+governing+phytoplankton+blooms+in+estuaries+1%3A+The+local+production-loss+balance&rft.au=Lucas%2C+LV%3BKoseff%2C+J+R%3BCloern%2C+JE%3BMonismith%2C+S+G%3BThompson%2C+J+K&rft.aulast=Lucas&rft.aufirst=LV&rft.date=1999-10-14&rft.volume=187&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Marine+Ecology+Progress+Series&rft.issn=01718630&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-07-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Estuaries; Phytoplankton; Tides; Water Depth; Bathymetry; Grazing; Algae; Eutrophication; Biomass; Algal blooms; Light effects; Turbidity; Zoobenthos; Tidal effects; Tidal cycles; Water depth; Water column; Mixing processes; Transport processes; Estuarine dynamics; Models; Light intensity; Benthic environment; Brackish ER - TY - JOUR T1 - Processes governing phytoplankton blooms in estuaries 2: The role of horizontal transport AN - 17486600; 4682511 AB - The development and distribution of phytoplankton blooms in estuaries are functions of both local conditions (i.e. the production-loss balance for a water column at a particular spatial location) and large-scale horizontal transport. In this study, the second of a 2-paper series, we use a depth-averaged hydrodynamic-biological model to identify transport-related mechanisms impacting phytoplankton biomass accumulation and distribution on a system level. We chose South San Francisco Bay as a model domain, since its combination of a deep channel surrounded by broad shoals is typical of drowned-river estuaries. Five general mechanisms involving interaction of horizontal transport with variability in local conditions are discussed. Residual (on the order of days to weeks) transport mechanisms affecting bloom development and location include residence time/export, import, and the role of deep channel regions as conduits for mass transport. Interactions occurring on tidal time scales, i.e. on the order of hours) include the phasing of lateral oscillatory tidal flow relative to temporal changes in local net phytoplankton growth rates, as well as lateral sloshing of shoal-derived biomass into deep channel regions during ebb and back into shallow regions during flood tide. Based on these results, we conclude that: (1) while local conditions control whether a bloom is possible, the combination of transport and spatial-temporal variability in local conditions determines if and where a bloom will actually occur; (2) tidal-time-scale physical-biological interactions provide important mechanisms for bloom development and evolution. As a result of both subtidal and tidal-time-scale transport processes, peak biomass may not be observed where local conditions are most favorable to phytoplankton production, and inherently unproductive areas may be regions of high biomass accumulation. JF - Marine Ecology Progress Series AU - Lucas, LV AU - Koseff, J R AU - Monismith, S G AU - Cloern, JE AU - Thompson, J K AD - United States Geological Survey, 345 Middlefield Road, MS #496, Menlo Park, CA 94025, USA, llucas@usgs.gov Y1 - 1999/10/14/ PY - 1999 DA - 1999 Oct 14 SP - 17 EP - 30 VL - 187 SN - 0171-8630, 0171-8630 KW - USA, California KW - USA, California, San Francisco Bay KW - Water Resources Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology; Ecology Abstracts; Oceanic Abstracts KW - Algal blooms KW - Horizontal distribution KW - Eutrophication KW - Phytoplankton KW - Tidal effects KW - Models KW - Coastal morphology KW - Mixing processes KW - Transport processes KW - Algae KW - Estuarine dynamics KW - Tidal cycles KW - Estuaries KW - Brackish KW - Biomass KW - Tides KW - Channels KW - Drowned valleys KW - INE, USA, California, San Francisco Bay KW - O 1070:Ecology/Community Studies KW - K 03009:Algae KW - D 04627:Algae/lichens KW - D 04003:Modeling, mathematics, computer applications KW - SW 0890:Estuaries UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17486600?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Ecology+Progress+Series&rft.atitle=Processes+governing+phytoplankton+blooms+in+estuaries+2%3A+The+role+of+horizontal+transport&rft.au=Lucas%2C+LV%3BKoseff%2C+J+R%3BMonismith%2C+S+G%3BCloern%2C+JE%3BThompson%2C+J+K&rft.aulast=Lucas&rft.aufirst=LV&rft.date=1999-10-14&rft.volume=187&rft.issue=&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Marine+Ecology+Progress+Series&rft.issn=01718630&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-07-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Phytoplankton; Estuaries; Eutrophication; Tides; Algae; Biomass; INE, USA, California, San Francisco Bay; Algal blooms; Horizontal distribution; Transport processes; Mixing processes; Tidal cycles; Tidal effects; Coastal morphology; Drowned valleys; Channels; Estuarine dynamics; Models; Brackish ER - TY - JOUR T1 - Comparison of the stable-isotopic composition of soil water collected from suction lysimeters, wick samplers, and cores in a sandy unsaturated zone AN - 17387736; 4614053 AB - Soil water collected from suction lysimeters and wick samplers buried in the unsaturated zone of a sand and gravel aquifer and extracted from soil cores were analyzed for stable oxygen and hydrogen isotope values. Soil water isotopic values differed among the three sampling methods in most cases. However, because each sampling method collected different fractions of the total soil-water reservoir, the isotopic differences indicated that the soil water at a given depth and time was isotopically heterogeneous. This heterogeneity reflects the presence of relatively more and less mobile components of soil water. Isotopic results from three field tests indicated that 95-100% of the water collected from wick samplers was mobile soil water while samples from suction lysimeters and cores were mixtures of more and less mobile soil water. Suction lysimeter samples contained a higher proportion of more mobile water (15-95%) than samples from cores (5-80%) at the same depth. The results of this study indicate that, during infiltration events, soil water collected with wick samplers is more representative of the mobile soil water that is likely to recharge ground water during or soon after the event than soil water from suction lysimeters or cores. JF - Journal of Hydrology (Amsterdam) AU - Landon, M K AU - Delin, G N AU - Komor, S C AU - Regan, C P AD - US Geological Survey, 2280 Woodale Drive, Mounds View, MN 55112, USA, landon@usgs.gov Y1 - 1999/10/12/ PY - 1999 DA - 1999 Oct 12 SP - 45 EP - 54 PB - Elsevier Science B.V. VL - 224 IS - 1-2 SN - 0022-1694, 0022-1694 KW - Water Resources Abstracts KW - Aeration Zone KW - Stable Isotopes KW - Cores KW - Comparison Studies KW - Water Sampling KW - Infiltration KW - Lysimeters KW - Field Tests KW - Soil Water KW - Heterogeneity KW - SW 5010:Network design KW - SW 0845:Water in soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17387736?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology+%28Amsterdam%29&rft.atitle=Comparison+of+the+stable-isotopic+composition+of+soil+water+collected+from+suction+lysimeters%2C+wick+samplers%2C+and+cores+in+a+sandy+unsaturated+zone&rft.au=Landon%2C+M+K%3BDelin%2C+G+N%3BKomor%2C+S+C%3BRegan%2C+C+P&rft.aulast=Landon&rft.aufirst=M&rft.date=1999-10-12&rft.volume=224&rft.issue=1-2&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology+%28Amsterdam%29&rft.issn=00221694&rft_id=info:doi/10.1016%2FS0022-1694%2899%2900120-1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Stable Isotopes; Lysimeters; Infiltration; Soil Water; Comparison Studies; Aeration Zone; Cores; Water Sampling; Heterogeneity; Field Tests DO - http://dx.doi.org/10.1016/S0022-1694(99)00120-1 ER - TY - JOUR T1 - Shedding of Renibacterium salmoninarum by infected chinook salmon Oncorhynchus tschawytscha AN - 17431442; 4653728 AB - Laboratory studies of the transmission and pathogenesis of Renibacterium salmoninarum may describe more accurately what is occurring in the natural environment if test fish are infected by waterborne R. salmoninarum shed from infected fish. To quantify bacterial shedding by chinook salmon Oncorhynchus tschawytscha at 13 degree C in freshwater, groups of fish were injected intraperitoneally with R. salmoninarum at either 1.3 x 10 super(6) colony forming units (CFU) fish super(-1) (high-dose injection group) or 1.5 x 10 super(3) CFU fish super(-1) (low-dose injection group). R. salmoninarum infection levels were measured in the exposed fish by the enzyme-linked immunosorbent assay (BKD-ELISA). At regular intervals for 30 d, the numbers of R. salmoninarum shed by the injected fish were calculated on the basis of testing water samples by the membrane filtration-fluorescent antibody test (MF-FAT) and bacteriological culture. Mean BKD-ELISA optical densities (ODs) for fish in the low-dose injection group were not different from those of control fish (p > 0.05), and no R. salmoninarum were detected in water samples taken up to 30 d after injection of fish in the low-dose group. By 12 d after injection a proportion of the fish from the high-dose infection group had high (BKD-ELISA OD greater than or equal to 1.000) to severe (BKD-ELISA OD greater than or equal to 2.000) R. salmoninarum infection levels, and bacteria were detected in the water by both tests. However, measurable levels of R. salmoninarum were not consistently detected in the water until a proportion of the fish maintained high to severe infection levels for an additional 8 d. The concentrations of R. salmoninarum in the water samples ranged from undetectable up to 994 cells ml super(-1) on the basis of the MF-FAT, and up to 1850 CFU ml super(-1) on the basis of bacteriological culture. The results suggest that chinook salmon infected with R. salmoninarum by injection of approximately 1 x 10 super(6) CFU fish super(-1) can be used as the source of infection in cohabitation challenges beginning 20 d after injection. JF - Diseases of Aquatic Organisms AU - McKibben, CL AU - Pascho, R J AD - U.S. Geological Survey, Biological Resources Division, Western Fisheries Research Center, 6505 NE 65th Street, Seattle, WA 98115, USA, ron_pascho@usgs.gov Y1 - 1999/10/11/ PY - 1999 DA - 1999 Oct 11 SP - 75 EP - 79 VL - 38 IS - 1 SN - 0177-5103, 0177-5103 KW - Chinook salmon KW - Oceanic Abstracts; ASFA Aquaculture Abstracts; Microbiology Abstracts B: Bacteriology; ASFA 1: Biological Sciences & Living Resources KW - Enzyme-linked immunosorbent assay KW - Pathogenic bacteria KW - Bacterial diseases KW - Freshwater KW - Oncorhynchus tshawytscha KW - Water analysis KW - Disease transmission KW - Renibacterium salmoninarum KW - Fish diseases KW - ELISA KW - J 02862:Infection KW - Q1 08587:Diseases of Cultured Organisms KW - Q1 08484:Species interactions: parasites and diseases KW - O 5060:Aquaculture KW - Q3 08587:Diseases of Cultured Organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17431442?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Diseases+of+Aquatic+Organisms&rft.atitle=Shedding+of+Renibacterium+salmoninarum+by+infected+chinook+salmon+Oncorhynchus+tschawytscha&rft.au=McKibben%2C+CL%3BPascho%2C+R+J&rft.aulast=McKibben&rft.aufirst=CL&rft.date=1999-10-11&rft.volume=38&rft.issue=1&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=Diseases+of+Aquatic+Organisms&rft.issn=01775103&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Fish diseases; Pathogenic bacteria; Bacterial diseases; ELISA; Water analysis; Disease transmission; Enzyme-linked immunosorbent assay; Renibacterium salmoninarum; Oncorhynchus tshawytscha; Freshwater ER - TY - JOUR T1 - Micrometeorologic Methods for Measuring the Post-Application Volatilization of Pesticides AN - 755133742; 13634119 AB - A wide variety of micrometeorological measurement methods can be used to estimate the postapplication volatilization of pesticides from treated fields. All these estimation methods require that the entire study area have the same surficial characteristics, including the area surrounding the actual study site, and that the pesticide under investigation be applied as quickly and as uniformly as possible before any measurements are made. Methods such as aerodynamic profile, energy balance, eddy correlation, and relaxed eddy accumulation require a large (typically 1 or more hectare) study area so that the flux measurements can be made in a well developed atmospheric boundary-layer and that steady-state conditions exist. The area surrounding the study plot should have similar surficial characteristics as the study plot with sufficient upwind extent so the wind speed and temperature gradients are fully developed. Mass balance methods such as integrated horizontal flux and trajectory simulations do not require a large source area, but the area surrounding the study plot should have similar surficial characteristics. None of the micrometeorological techniques for estimating the postapplication volatilization fluxes of pesticides disturb the environment or the soil processes that influence the gas exchange from the surface to the atmosphere. They allow for continuous measurements and provide a temporally averaged flux value over a large area. If the behavior of volatilizing pesticides and the importance of the volatilization process in redistributing pesticides in the environment are to be fully understood, it is critical that we understand not only the processes that govern pesticide entry into the lower atmosphere, but also how much of the millions of kilograms of pesticides that are applied annually are introduced into, and redistributed by, the atmosphere. We also must be aware of the assumptions and limitations of the estimation techniques used, and adapt the field of pesticide volatilization flux measurements to advances in atmospheric science. JF - Water, Air, & Soil Pollution AU - Majewski AD - U.S. Geological Survey, 6000 J Street, Placer Hall, Sacramento, CA, 95819-6129, U.S.A., majewski@usgs.gov Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 83 EP - 113 PB - Springer-Verlag, Tiergartenstrasse 17 Heidelberg 69121 Germany VL - 115 IS - 1-4 SN - 0049-6979, 0049-6979 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Environment Abstracts; Pollution Abstracts KW - Gas exchange KW - Marine KW - Atmospheric gases KW - Atmospheric sciences KW - Temperature KW - Velocity KW - Simulation KW - Oceanic eddies KW - Soil contamination KW - Atmosphere KW - Water pollution KW - Soil KW - Air pollution KW - Wind speed KW - Energy balance KW - Aerodynamics KW - Pesticides KW - gas exchange KW - Q2 09405:Oil and gas KW - P 0000:AIR POLLUTION KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/755133742?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water%2C+Air%2C+%26+Soil+Pollution&rft.atitle=Micrometeorologic+Methods+for+Measuring+the+Post-Application+Volatilization+of+Pesticides&rft.au=Majewski&rft.aulast=Majewski&rft.aufirst=&rft.date=1999-10-01&rft.volume=115&rft.issue=1-4&rft.spage=83&rft.isbn=&rft.btitle=&rft.title=Water%2C+Air%2C+%26+Soil+Pollution&rft.issn=00496979&rft_id=info:doi/10.1023%2FA%3A1005297121445 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-09-01 N1 - Last updated - 2014-05-02 N1 - SubjectsTermNotLitGenreText - Wind speed; Gas exchange; Air pollution; Atmospheric gases; Atmospheric sciences; Energy balance; Pesticides; Oceanic eddies; Water pollution; Soil; Aerodynamics; Temperature; Simulation; Velocity; Soil contamination; Atmosphere; gas exchange; Marine DO - http://dx.doi.org/10.1023/A:1005297121445 ER - TY - JOUR T1 - Restoration of native riparian plant communities along the lower Colorado River AN - 52174890; 2001-074263 JF - Issue Paper (University of Arizona. Water Resources Research Center) AU - Swett, John AU - Shafroth, Patrick B AU - Tellman, Barbara AU - Briggs, Mark K Y1 - 1999/10// PY - 1999 DA - October 1999 SP - 35 PB - Water Resources Research Center, University of Arizona, [Tucson, AZ] VL - 21 KW - United States KW - soils KW - Plantae KW - degradation KW - Colorado River basin KW - human activity KW - reclamation KW - ecosystems KW - salinity KW - environmental effects KW - remediation KW - ground water KW - Colorado River KW - riparian environment KW - floods KW - ecology KW - basin management KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52174890?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Issue+Paper+%28University+of+Arizona.+Water+Resources+Research+Center%29&rft.atitle=Restoration+of+native+riparian+plant+communities+along+the+lower+Colorado+River&rft.au=Swett%2C+John%3BShafroth%2C+Patrick+B%3BTellman%2C+Barbara%3BBriggs%2C+Mark+K&rft.aulast=Swett&rft.aufirst=John&rft.date=1999-10-01&rft.volume=21&rft.issue=&rft.spage=35&rft.isbn=&rft.btitle=&rft.title=Issue+Paper+%28University+of+Arizona.+Water+Resources+Research+Center%29&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Gila River riparian restoration forum N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - AZ] N1 - Last updated - 2012-06-07 N1 - CODEN - #03154 N1 - SubjectsTermNotLitGenreText - basin management; Colorado River; Colorado River basin; degradation; ecology; ecosystems; environmental effects; floods; ground water; human activity; Plantae; reclamation; remediation; riparian environment; salinity; soils; United States ER - TY - JOUR T1 - Nitrogen dynamics in two high elevation catchments during spring snowmelt 1996, Rocky Mountains, Colorado AN - 51979625; 2003-046804 JF - Hydrological Processes AU - Heuer, Kristi AU - Brooks, Paul D AU - Tonnessen, Kathy A A2 - Hardy, Janet P. A2 - Albert, Mary R. A2 - Marsh, Philip Y1 - 1999/10// PY - 1999 DA - October 1999 SP - 2203 EP - 2214 PB - John Wiley & Sons, New York, NY VL - 13 IS - 14-15 SN - 0885-6087, 0885-6087 KW - United States KW - soils KW - North America KW - Deer Creek KW - Front Range KW - snowmelt KW - surface water KW - Summit County Colorado KW - U. S. Rocky Mountains KW - atmospheric precipitation KW - hydrochemistry KW - nitrogen KW - geochemical cycle KW - nitrogen cycle KW - snow KW - drainage basins KW - Snake River KW - Colorado KW - chemical composition KW - geochemistry KW - Rocky Mountains KW - meltwater KW - 02B:Hydrochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51979625?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrological+Processes&rft.atitle=Nitrogen+dynamics+in+two+high+elevation+catchments+during+spring+snowmelt+1996%2C+Rocky+Mountains%2C+Colorado&rft.au=Heuer%2C+Kristi%3BBrooks%2C+Paul+D%3BTonnessen%2C+Kathy+A&rft.aulast=Heuer&rft.aufirst=Kristi&rft.date=1999-10-01&rft.volume=13&rft.issue=14-15&rft.spage=2203&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=08856087&rft_id=info:doi/ L2 - http://www3.interscience.wiley.com/cgi-bin/jhome/4125 LA - English DB - GeoRef N1 - Conference title - International conference on Snow hydrology; the integration of physical, chemical and biological systems N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 41 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; chemical composition; Colorado; Deer Creek; drainage basins; Front Range; geochemical cycle; geochemistry; hydrochemistry; meltwater; nitrogen; nitrogen cycle; North America; Rocky Mountains; Snake River; snow; snowmelt; soils; Summit County Colorado; surface water; U. S. Rocky Mountains; United States ER - TY - JOUR T1 - Natural variability in N export from headwater catchments; snow cover controls on ecosystem N retention AN - 51975812; 2003-046803 JF - Hydrological Processes AU - Brooks, Paul D AU - Campbell, Don H AU - Tonnessen, Kathy A AU - Heuer, Kristi A2 - Hardy, Janet P. A2 - Albert, Mary R. A2 - Marsh, Philip Y1 - 1999/10// PY - 1999 DA - October 1999 SP - 2191 EP - 2201 PB - John Wiley & Sons, New York, NY VL - 13 IS - 14-15 SN - 0885-6087, 0885-6087 KW - United States KW - snow cover KW - Front Range KW - Boulder County Colorado KW - ecosystems KW - nitrogen KW - carbon dioxide KW - drainage basins KW - leachate KW - ecology KW - Niwot Ridge KW - hydrology KW - North America KW - Deer Creek KW - snowmelt KW - biochemistry KW - Summit County Colorado KW - U. S. Rocky Mountains KW - Rocky Mountain National Park KW - Loch Vale KW - geochemical cycle KW - nitrogen cycle KW - Snake River KW - Colorado KW - Rocky Mountains KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51975812?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrological+Processes&rft.atitle=Natural+variability+in+N+export+from+headwater+catchments%3B+snow+cover+controls+on+ecosystem+N+retention&rft.au=Brooks%2C+Paul+D%3BCampbell%2C+Don+H%3BTonnessen%2C+Kathy+A%3BHeuer%2C+Kristi&rft.aulast=Brooks&rft.aufirst=Paul&rft.date=1999-10-01&rft.volume=13&rft.issue=14-15&rft.spage=2191&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=08856087&rft_id=info:doi/ L2 - http://www3.interscience.wiley.com/cgi-bin/jhome/4125 LA - English DB - GeoRef N1 - Conference title - International conference on Snow hydrology; the integration of physical, chemical and biological systems N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 50 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - biochemistry; Boulder County Colorado; carbon dioxide; Colorado; Deer Creek; drainage basins; ecology; ecosystems; Front Range; geochemical cycle; hydrology; leachate; Loch Vale; nitrogen; nitrogen cycle; Niwot Ridge; North America; Rocky Mountain National Park; Rocky Mountains; Snake River; snow cover; snowmelt; Summit County Colorado; U. S. Rocky Mountains; United States ER - TY - JOUR T1 - Simultaneous reduction of nitrate and selenate by cell suspensions of selenium-respiring bacteria AN - 19812707; 4615214 AB - Washed-cell suspensions of Sulfurospirillum barnesii reduced selenate [Se(VI)] when cells were cultured with nitrate, thiosulfate, arsenate, or fumarate as the electron acceptor. When the concentration of the electron donor was limiting, Se(VI) reduction in whole cells was approximately fourfold greater in Se(VI)-grown cells than was observed in nitrate-grown cells; correspondingly, nitrate reduction was approximately 11-fold higher in nitrate-grown cells than in Se(VI)-grown cells. However, a simultaneous reduction of nitrate and Se(VI) was observed in both cases. At nonlimiting electron donor concentrations, nitrate-grown cells suspended with equimolar nitrate and selenate achieved a complete reductive removal of nitrogen and selenium oxyanions, with the bulk of nitrate reduction preceding that of selenate reduction. Chloramphenicol did not inhibit these reductions. The Se(VI)-respiring haloalkaliphile Bacillus arsenicoselenatis gave similar results, but its Se(VI) reductase was not constitutive in nitrate-grown cells. No reduction of Se(VI) was noted for Bacillus selenitireducens, which respires selenite. The results of kinetic experiments with cell membrane preparations of S. barnesii suggest the presence of constitutive selenate and nitrate reduction, as well as an inducible, high-affinity nitrate reductase in nitrate-grown cells which also has a low affinity for selenate. The simultaneous reduction of micromolar Se(VI) in the presence of millimolar nitrate indicates that these organisms may have a functional use in bioremediating nitrate-rich, seleniferous agricultural wastewaters. Results with super(75)Se-selenate tracer show that these organisms can lower ambient Se(VI) concentrations to levels in compliance with new regulations proposed for release of selenium oxyanions into the environment. JF - Applied and Environmental Microbiology AU - Oremland, R S AU - Blum, J S AU - Bindi, AB AU - Dowdle, PhR AU - Herbel, M AU - Stolz, J F AD - US Geological Survey, ms 480, 345 Middlefield Rd., Menlo Park, CA 94025, USA, roremlan@usgs.gov Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 4385 EP - 4392 VL - 65 IS - 10 SN - 0099-2240, 0099-2240 KW - Nitrate reductase KW - Selenate reductase KW - Selenates KW - Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Cell suspensions KW - Bacillus arsenicoselenatis KW - Chloramphenicol KW - Biodegradation KW - Nitrite test KW - selenite KW - Wastewater treatment KW - Bacillus selenitireducens KW - Tracers KW - Selenium KW - reductase KW - Cell membranes KW - Nitrate reduction KW - Kinetics KW - thiosulfate KW - Sulfurospirillum barnesii KW - Waste water KW - Bacillus KW - Nitrogen KW - A 01105:Non-patents KW - J 02330:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19812707?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Simultaneous+reduction+of+nitrate+and+selenate+by+cell+suspensions+of+selenium-respiring+bacteria&rft.au=Oremland%2C+R+S%3BBlum%2C+J+S%3BBindi%2C+AB%3BDowdle%2C+PhR%3BHerbel%2C+M%3BStolz%2C+J+F&rft.aulast=Oremland&rft.aufirst=R&rft.date=1999-10-01&rft.volume=65&rft.issue=10&rft.spage=4385&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 1999-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Cell suspensions; Chloramphenicol; Biodegradation; Nitrite test; Nitrate reductase; selenite; Wastewater treatment; Selenium; Tracers; Cell membranes; reductase; Nitrate reduction; Kinetics; thiosulfate; Waste water; Nitrogen; Bacillus selenitireducens; Bacillus arsenicoselenatis; Sulfurospirillum barnesii; Bacillus ER - TY - JOUR T1 - Surface Water-Ground Water Interaction: Herbicide Transport into Municipal Collector Wells AN - 18021485; 4670912 AB - During spring runoff events, herbicides in the Platte River are transported through an alluvial aquifer into collector wells located on an island in the river in 6 to 7 d. During two spring runoff events in 1995 and 1996, atrazine [2-chloro-4-ethylamino- 6-isopropylamino-s-triazine] concentrations in water from these wells reached approximately 7 mu g/L, 70 times more than the background concentration in ground water. Concentrations of herbicides and metabolites in the collector wells generally were one-half to one-fifth the concentrations of herbicides in the river for atrazine, alachlor [2-chloro-2'-6'-diethyl-N-(methoxymethyl)-acetanilide], alachlor ethane-sulfonic acid (ESA) [2-((2,6-diethylphenyl) (methoxymethyl)amino)-2-oxoethane-sulfonic acid], metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N- (2-methoxy-1-methylethyl)acetamide], cyanazine [2-((4-chloro-6-(ethylamino)-1,3,5 triazin-2-yl) -amino)-2-methylpropionitrile], and acetochlor [2-chloro-N-(ethoxymethyl)-N-(2-ethyl-6methyl-phenyl) acetamide], suggesting that 20 to 50% river water could be present in the water from the collector wells, assuming no degradation. The effect of the river on the quality of water from the collector wells can be reduced through selective management of horizontal laterals of the collector wells. The quality of the water from the collector wells is dependent on the (i) selection of the collector well used, (ii) number and selection of laterals used, (iii) chemical characteristics of the contaminant, and (iv) relative mixing of the Platte River and a major upstream tributary. JF - Journal of Environmental Quality AU - Verstraeten, I M AU - Carr, J D AU - Steele, G V AU - Thurman, E M AU - Bastian, K C AU - Dormedy, D F AD - U.S. Geological Survey, 100 Centennial Mall North, Lincoln, NE 68508, USA, imverstr@usgs.gov Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 1396 EP - 1405 VL - 28 IS - 5 SN - 0047-2425, 0047-2425 KW - USA, Nebraska, Platte R. KW - Well water KW - acetochlor KW - alachlor KW - cyanazine KW - metolachlor KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Water Resources Abstracts KW - Path of Pollutants KW - Surface water KW - Pollution dispersion KW - Water Supply KW - Pollution effects KW - Metabolites KW - Freshwater KW - Water quality KW - Mixing KW - Well Water KW - Public health KW - Municipal Water KW - Hydrology KW - Tributaries KW - Freshwater pollution KW - Rivers KW - Water Quality KW - Herbicides KW - Water supply KW - Surface-groundwater Relations KW - Atrazine KW - Water wells KW - Groundwater pollution KW - Groundwater KW - Runoff KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18021485?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Surface+Water-Ground+Water+Interaction%3A+Herbicide+Transport+into+Municipal+Collector+Wells&rft.au=Verstraeten%2C+I+M%3BCarr%2C+J+D%3BSteele%2C+G+V%3BThurman%2C+E+M%3BBastian%2C+K+C%3BDormedy%2C+D+F&rft.aulast=Verstraeten&rft.aufirst=I&rft.date=1999-10-01&rft.volume=28&rft.issue=5&rft.spage=1396&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Rivers; Surface water; Pollution dispersion; Groundwater pollution; Pollution effects; Herbicides; Runoff; Public health; Water supply; Freshwater pollution; Atrazine; Hydrology; Water wells; Water quality; Groundwater; Municipal Water; Surface-groundwater Relations; Path of Pollutants; Water Supply; Water Quality; Metabolites; Tributaries; Mixing; Well Water; Freshwater ER - TY - JOUR T1 - Nitrate Behavior in Ground Waters of the Southeastern USA AN - 18011797; 4670923 AB - Principal components analysis (PCA) was performed with water-quality data from studies conducted during 1993 to 1995 to explore potential nitrate-attenuation processes in ground waters of the southeastern USA. Nitrate reduction is an important attenuation process in selected areas of the Southeast. A nitrate-reduction component explains 23% of the total variance in the data and indicates that nitrate and dissolved oxygen (DO) are inversely related to ammonium, iron, manganese, and dissolved organic carbon (DOC). Additional components extracted by PCA include calcite dissolution (18% of variance explained) and phosphate dissolution (9% of variance explained). Reducing conditions in ground waters of the region influence nitrate behavior through bacterially mediated reduction in the presence of organic matter, and by inhibition of nitrate formation in anoxic ground water beneath forested areas. Component scores are consistent with observed water-quality conditions in the region. For example, median nitrate concentration in ground-water samples from the Albemarle-Pamlico Drainage Basin (ALBE) Coastal Plain is <0.05 mg L super(-1), median DOC concentration is 4.2 mg L super(-1), and median DO concentration is 2.1 mg L super(-1), consistent with denitrification. Nitrate reduction does not occur uniformly throughout the Southeast. Median DO concentrations in ground-water samples from the Apalachicola-Chattahoochee-Flint River Basin (ACFB) are 6.2 to 7.1 mg L super(-1), and median nitrate concentrations are 0.61 to 2.2 mg L super(-1), inconsistent with denitrification. Similarly, median DO concentration in samples from the Georgia-Florida Coastal Plain (GAFL) is 6.0 mg L super(-1) and median nitrate concentration is 5.8 mg L super(-1). JF - Journal of Environmental Quality AU - Nolan, B T AD - U.S. Geological Survey, 413 National Center, Reston, VA 20192, USA, btnolan@usgs.gov Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 1518 EP - 1527 VL - 28 IS - 5 SN - 0047-2425, 0047-2425 KW - USA, Southeast KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Water Resources Abstracts KW - Pollution monitoring KW - Coastal Plains KW - Principal Component Analysis KW - Water quality measurements KW - Groundwater Pollution KW - Freshwater KW - Water quality KW - Dissolved oxygen KW - Chemical Reduction KW - Denitrification KW - Ground water KW - Bacteria KW - Nitrates KW - Biogeochemical cycle KW - Organic Carbon KW - Dissolved Oxygen KW - Water Quality KW - River basins KW - Inhibition KW - Fate KW - Behavior KW - Nitrogen cycle KW - Groundwater pollution KW - Drainage water KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18011797?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Nitrate+Behavior+in+Ground+Waters+of+the+Southeastern+USA&rft.au=Nolan%2C+B+T&rft.aulast=Nolan&rft.aufirst=B&rft.date=1999-10-01&rft.volume=28&rft.issue=5&rft.spage=1518&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Pollution monitoring; Nitrates; Biogeochemical cycle; Denitrification; Ground water; Groundwater pollution; Nitrogen cycle; River basins; Water quality; Drainage water; Dissolved oxygen; Fate; Water quality measurements; Bacteria; Coastal Plains; Behavior; Chemical Reduction; Organic Carbon; Principal Component Analysis; Water Quality; Dissolved Oxygen; Groundwater Pollution; Inhibition; Freshwater ER - TY - JOUR T1 - Determining Travel Time and Stream Mixing using Tracers and Empirical Equations AN - 17653431; 4670911 AB - Water-supply managers need adequate warning to protect water supplies if a contaminant is spilled in an upgradient tributary. The city of Lincoln draws water from alluvium associated with the Platte River near Ashland, eastern Nebraska. Using constant-rate injection methods and a conservative tracer, travel time and degree of mixing of contaminants in the Elkhorn and Platte Rivers were evaluated in 1995 and 1996. The results indicate that, for flows of 584 to 162 m super(3)/s in the Platte River at Ashland with 13 to 28% of its flow contributed by the Elkhorn River, 8.2 to 13.2 h are required for the leading edge of a chemical plume to travel from the Elkhorn River at Waterloo to the Platte River at Ashland. The peak concentration of a chemical spilled as a slug in the Elkhorn River near Waterloo would pass the well field after 11.3 to 16.1 h. Existing empirical equations for calculation of travel time were shown to apply to reaches of streams studied, but underestimated the leading edge up to 14% and overestimated the plateau concentration up to 11% at Site 5. However, time of travel may be influenced by the relative contribution of a tributary. The plateau concentration of the chemical in the Platte River at Ashland was 45 to 60% of its concentration in the Elkhorn River. The degree of mixing of the tracer in the Platte River at Ashland increased from 53 to 65% as the relative contribution of the Elkhorn River increased. JF - Journal of Environmental Quality AU - Verstraeten, I M AU - Soenksen, P J AU - Engel, G B AU - Miller, L D AD - U.S. Geological Survey, Room 406 Federal Building, 100 Centennial Mall, Lincoln, NE 68508, USA, imverstr@usgs.gov Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 1387 EP - 1395 VL - 28 IS - 5 SN - 0047-2425, 0047-2425 KW - USA, Nebraska, Elkhorn R. KW - USA, Nebraska, Platte R. KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Rivers KW - Water mixing KW - Path of Pollutants KW - Estimating KW - Mathematical Equations KW - Traveltime KW - Mixing KW - Alluvial deposits KW - Water pollution KW - Water supply KW - Tracers KW - Pollutants KW - Plumes KW - Tributaries KW - Q5 08503:Characteristics, behavior and fate KW - SW 3020:Sources and fate of pollution KW - Q2 09171:Dynamics of lakes and rivers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17653431?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Determining+Travel+Time+and+Stream+Mixing+using+Tracers+and+Empirical+Equations&rft.au=Verstraeten%2C+I+M%3BSoenksen%2C+P+J%3BEngel%2C+G+B%3BMiller%2C+L+D&rft.aulast=Verstraeten&rft.aufirst=I&rft.date=1999-10-01&rft.volume=28&rft.issue=5&rft.spage=1387&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Rivers; Tracers; Water mixing; Pollutants; Alluvial deposits; Tributaries; Plumes; Water pollution; Water supply; Path of Pollutants; Estimating; Mathematical Equations; Mixing; Traveltime ER - TY - JOUR T1 - Water and sediment characteristics associated with avian botulism outbreaks in wetlands AN - 17585521; 4686064 AB - Avian botulism kills thousands of waterbirds annually throughout North America, but management efforts to reduce its effects have been hindered because environmental conditions that promote outbreaks are poorly understood. We measured sediment and water variables in 32 pairs of wetlands with and without a current outbreak of avian botulism. Wetlands with botulism outbreaks had greater percent organic matter (POM) in the sediment (P = 0.088) and lower redox potential in the water (P = 0.096) than paired control wetlands. We also found that pH, redox potential, temperature, and salinity measured just above the sediment-water interface were associated (P less than or equal to 0.05) with the risk of botulism outbreaks in wetlands, but relations were complex, involving nonlinear and multivariate associations. Regression models indicated that the risk of botulism outbreaks increased when water pH was between 7.5 and 9.0, redox potential was negative, and water temperature was >20 degree C. Risk declined when redox potential increased (>100), water temperature decreased (10-15 degree C), pH was 9.0, or salinity was low (<2.0 ppt). Our predictive models could allow managers to assess potential effects of wetland management practices on the risk of botulism outbreaks and to develop and evaluate alternative management strategies to reduce losses from avian botulism. JF - Journal of Wildlife Management AU - Rocke, TE AU - Samuel, MD AD - U.S. Geological Survey, Biological Resources Division, National Wildlife Health Center, 6006 Schroeder Road, Madison, WI 53711, USA, tonie_rocke@usgs.gov Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 1249 EP - 1260 VL - 63 IS - 4 SN - 0022-541X, 0022-541X KW - Bacteria KW - Birds KW - avian botulism KW - botulism KW - ASFA 1: Biological Sciences & Living Resources; Water Resources Abstracts; Ecology Abstracts KW - Temperature effects KW - Botulism KW - Water properties KW - Bacterial diseases KW - Disease control KW - Hydrogen Ion Concentration KW - Sediments KW - Aves KW - Salinity KW - Sediment properties KW - Salinity effects KW - Temperature Effects KW - Wetlands KW - Diseases KW - pH effects KW - Aquatic birds KW - D 04700:Management KW - D 04671:Birds KW - SW 0810:General KW - Q1 08484:Species interactions: parasites and diseases UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17585521?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Wildlife+Management&rft.atitle=Water+and+sediment+characteristics+associated+with+avian+botulism+outbreaks+in+wetlands&rft.au=Rocke%2C+TE%3BSamuel%2C+MD&rft.aulast=Rocke&rft.aufirst=TE&rft.date=1999-10-01&rft.volume=63&rft.issue=4&rft.spage=1249&rft.isbn=&rft.btitle=&rft.title=Journal+of+Wildlife+Management&rft.issn=0022541X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment properties; Bacterial diseases; Water properties; Disease control; Wetlands; Aquatic birds; Temperature effects; Botulism; Salinity effects; pH effects; Sediments; Salinity; Hydrogen Ion Concentration; Temperature Effects; Diseases; Birds; Aves; Bacteria ER - TY - JOUR T1 - Effects of egg and hatchling harvest on American alligators in Florida AN - 17584385; 4686059 AB - Harvest of crocodilian eggs and young for captive rearing (ranching) has been used worldwide as an option for producing crocodilian skins and meat from wild stock. The long-term effects of harvesting a certain proportion of early age class, wild American alligators (Alligator mississippiensis) without repatriation is unknown. We removed an estimated 50% of annual production of alligators on Lakes Griffin and Jesup in central Florida over an 11-year period and monitored population levels via night-light counts. Densities of the total alligator population increased (P 0.117), and subadult (122-182 cm TL) alligators increased (P < 0.011) on harvest areas. The density of juveniles on the control area increased (P = 0.006), and the density of subadults showed some evidence of increasing (P = 0.088). No changes were detected in size distributions on the treatment areas. Nest production, as observed from aerial helicopter surveys, increased (P < 0.039) on Lake Woodruff NWR and Lake Jesup and showed some evidence of an increase on Lake Griffin (P = 0.098) during 1983-91. A 50% harvest rate of eggs or hatchlings did not adversely affect recruitment into the subadult or adult size classes. JF - Journal of Wildlife Management AU - Rice, K G AU - Percival, H F AU - Woodward, A R AU - Jennings, M L AD - U.S. Geological Survey, Biological Resources Division, Florida Caribbean Science Center, Restoration Ecology Branch, Everglades National Park Field Station, 40001 SR 9336, Homestead, FL 33034, USA, ken_g_rice@usgs.gov Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 1193 EP - 1200 VL - 63 IS - 4 SN - 0022-541X, 0022-541X KW - American alligator KW - USA, Florida KW - ASFA 1: Biological Sciences & Living Resources; ASFA Aquaculture Abstracts; Ecology Abstracts KW - Seed (aquaculture) KW - Juveniles KW - Recruitment KW - Alligator mississippiensis KW - Population dynamics KW - Harvesting KW - Eggs KW - Reptile culture KW - D 04700:Management KW - Q3 08584:Culture of other aquatic animals KW - Q1 08584:Culture of other aquatic animals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17584385?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Wildlife+Management&rft.atitle=Effects+of+egg+and+hatchling+harvest+on+American+alligators+in+Florida&rft.au=Rice%2C+K+G%3BPercival%2C+H+F%3BWoodward%2C+A+R%3BJennings%2C+M+L&rft.aulast=Rice&rft.aufirst=K&rft.date=1999-10-01&rft.volume=63&rft.issue=4&rft.spage=1193&rft.isbn=&rft.btitle=&rft.title=Journal+of+Wildlife+Management&rft.issn=0022541X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Seed (aquaculture); Juveniles; Recruitment; Population dynamics; Eggs; Reptile culture; Harvesting; Alligator mississippiensis ER - TY - JOUR T1 - Benthic Marine Debris, with an Emphasis on Fishery-Related Items, Surrounding Kodiak Island, AK, 1994-1996, USA AN - 17580237; 4647786 AB - Composition and abundance of benthic marine debris were investigated during three bottom trawl surveys in inlet and offshore locations surrounding Kodiak Island, Alaska, 1994-1996. Debris items were primarily plastic and metal regardless of trawl location. Plastic bait jars, fishing line, and crab pots were the most common fishery-related debris items and were encountered in large amounts in inlets (20-25 items km super(-2)), but were less abundant outside of inlets (4.5-11 items km super(-2)). Overall density of debris was also significantly greater in inlets than outside of inlets. Plastic debris densities in inlets ranged 22-31.5 items km super(-2), 7.8-18.8 items km super(-2) outside of inlets. Trawls in inlets contained almost as much metal debris as plastic debris. Density of metal debris ranged from 21.2 to 23.7 items km super(-2) in inlets, a maximum of 2.7 items km super(-2) outside of inlets. Inlets around the town of Kodiak had the highest densities of fishery-related and total benthic debris. Differences in benthic debris density between inlets and outside of inlets and differences by area may be due to differences in fishing activity and water circulation patterns. At the current reduced levels of fishing activity, however, yearly monitoring of benthic debris appears unnecessary. JF - Marine Pollution Bulletin AU - Hess, NA AU - Ribic, CA AU - Vining, I AD - USGS BRD Wisconsin Cooperative Wildlife Research Unit, Department of Wildlife Ecology, University of Wisconsin, 226 Russell Labs., 1630 Linden Drive, Madison, WI 53706-1598, USA, caribic@facstaff.wisc.edu Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 885 EP - 890 VL - 38 IS - 10 SN - 0025-326X, 0025-326X KW - USA, Alaska, Kodiak I. KW - Water Resources Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Metals KW - Pollution monitoring KW - Marine Environment KW - Solid impurities KW - Plastic debris KW - Fishing gear KW - INE, USA, Alaska, Kodiak I. KW - Surveys KW - Solid Wastes KW - Coastal waters KW - Solid wastes KW - Marine pollution KW - Plastics KW - Detritus KW - Benthos KW - Q5 08503:Characteristics, behavior and fate KW - P 1000:MARINE POLLUTION KW - SW 3020:Sources and fate of pollution KW - O 4060:Pollution - Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17580237?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Pollution+Bulletin&rft.atitle=Benthic+Marine+Debris%2C+with+an+Emphasis+on+Fishery-Related+Items%2C+Surrounding+Kodiak+Island%2C+AK%2C+1994-1996%2C+USA&rft.au=Hess%2C+NA%3BRibic%2C+CA%3BVining%2C+I&rft.aulast=Hess&rft.aufirst=NA&rft.date=1999-10-01&rft.volume=38&rft.issue=10&rft.spage=885&rft.isbn=&rft.btitle=&rft.title=Marine+Pollution+Bulletin&rft.issn=0025326X&rft_id=info:doi/10.1016%2FS0025-326X%2899%2900087-9 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Pollution monitoring; Metals; Solid impurities; Marine pollution; Plastic debris; Fishing gear; Coastal waters; Plastics; Solid wastes; Marine Environment; Surveys; Solid Wastes; Detritus; Benthos; INE, USA, Alaska, Kodiak I. DO - http://dx.doi.org/10.1016/S0025-326X(99)00087-9 ER - TY - JOUR T1 - A siphon gage for monitoring surface-water levels AN - 17579094; 4660011 AB - A device that uses a siphon tube to establish a hydraulic connection between the bottom of an onshore standpipe and a point at the bottom of a water body was designed and tested for monitoring surface-water levels. Water is added to the standpipe to a level sufficient to drive a complete slug of water through the siphoning tube and to flush all air out of the system. The water levels in the standpipe and the water body equilibrate and provide a measurable static water surface in the standpipe. The siphon gage was designed to allow quick and accurate year-round measurements with minimal maintenance. Currently available devices for monitoring surface-water levels commonly involve time-consuming and costly installation and surveying, and the movement of reference points and the presence of ice cover in cold regions cause discontinuity and inaccuracy in the data collected. Installation and field testing of a siphon gage using 0.75-in-diameter polyethylene tubing at Ashumet Pond in Falmouth, Massachusetts, demonstrated that the siphon gage can provide long-term data with a field effort and accuracy equivalent to measurement of ground-water levels at an observation well. JF - Journal of the American Water Resources Association AU - McCobb, T D AU - LeBlanc AU - Socolow, R S AD - U.S. Geological Survey, 10 Bearfoot Road, Northborough, Massachusetts 01532, USA, tmccobb@usgs.gov Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 1141 EP - 1146 VL - 35 IS - 5 SN - 1093-474X, 1093-474X KW - USA, Massachusetts KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - Pipes KW - Instrumentation KW - Measuring Instruments KW - Water level KW - Surface water KW - Gauges KW - Measuring devices KW - Water Level KW - Surface Water KW - Water levels KW - Gages KW - Lakes KW - Pipes (see also Conduits, Drains, Pipelines, Sewers) KW - Surface water (see also Lakes, Ponds, Streams) KW - Groundwater (see also Aquifers) KW - Ground water KW - Groundwater KW - Monitoring KW - SW 5040:Data acquisition KW - Q2 09162:Methods and instruments KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17579094?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=A+siphon+gage+for+monitoring+surface-water+levels&rft.au=McCobb%2C+T+D%3BLeBlanc%3BSocolow%2C+R+S&rft.aulast=McCobb&rft.aufirst=T&rft.date=1999-10-01&rft.volume=35&rft.issue=5&rft.spage=1141&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Water levels; Pipes; Lakes; Surface water; Gauges; Ground water; Measuring devices; Pipes (see also Conduits, Drains, Pipelines, Sewers); Instrumentation; Water level; Groundwater (see also Aquifers); Surface water (see also Lakes, Ponds, Streams); Monitoring; Gages; Measuring Instruments; Surface Water; Water Level; Groundwater ER - TY - JOUR T1 - Performance and accuracy evaluation of small satellite transmitters AN - 17491076; 4686127 AB - Recent technological advances have resulted in small (30 g) satellite platform transmitter terminals (PTTs) that can be used to track animals with masses as little as 900-1,000 g. While larger PTTs (>80 g) often yield locations accurate to within hundreds of meters, the location accuracy of smaller PTTs has not been tested. We did these tests while using the PTTs to document migration routes and nonbreeding areas of American peregrine falcons (Falco peregrinus anatum). We PTT-tagged 42 female peregrines from 2 breeding areas (upper Yukon River in eastcentral Alaska and Lake Powell on the Colorado Plateau in southern Utah and northern Arizona) late in the breeding seasons of 1993-95. Only 2 of the PTTs failed prematurely (4.7% failure rate). Active PTTs (i.e., PTTs on live birds that eventually stopped transmitting due to battery exhaustion) averaged 280 transmission hours for 1993-94 (n = 3), 380 transmission hours for 1994-95 (n = 7), and 430 transmission hours for 1995-96 (n = 15). Using an estimate of maximum ground speed of peregrines (104 km/hr) based on empirical observations and aerodynamic calculations, we determined that 4.48% of all locations provided to us by Argos (n = 2,323) were biologically implausible. We also received many poor-quality locations (68% of records were in Argos location classes 0, A, and B) typical of small, relatively underpowered PTTs. To estimate location accuracy of these poor-quality locations, we compared Argos-estimated locations with known locations of 11 rock doves (Columba livia) tagged with PTTs. The location types with the highest precision averaged 4 km from the true location, while the location types with the lowest precision averaged 35 km from the true location. These results indicate the PTT locations were sufficient to document animal movements over broad spatial scales such as identifying migration routes and nonbreeding areas of birds. This technology is more efficient and less biased than the current approaches used to obtain this information (mark-resighting of banded animals or standard radiotelemetry techniques). However, the PTTs currently available are not suitable when position accuracy <35 km is needed. JF - Journal of Wildlife Management AU - Britten, M W AU - Kennedy, P L AU - Ambrose, S AD - National Park Service, 12795 West Alameda Parkway, Lakewood, CO 80228, USA, mike_britten@nps.gov Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 1349 EP - 1358 VL - 63 IS - 4 SN - 0022-541X, 0022-541X KW - American peregrine falcon KW - Canada KW - USA KW - Ecology Abstracts KW - Falco peregrinus anatum KW - Migration KW - Satellites KW - Tracking KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17491076?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft.genre=dissertations+%26+theses&rft.jtitle=&rft.atitle=&rft.au=Edelman%2C+James+Scott&rft.aulast=Edelman&rft.aufirst=James&rft.date=1990-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+effects+of+a+period+of+mirthful+laughter+upon+peripheral+indices+of+arousal&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Falco peregrinus anatum; Satellites; Tracking; Migration ER - TY - JOUR T1 - Survival of greater white-fronted geese: Effects of year, season, sex, and body condition AN - 17490178; 4686063 AB - Information regarding the magnitude and variation in survival rates is necessary for understanding the causes of large changes in population size. We examined survival of greater white-fronted geese (Anser albifrons frontalis) in the Pacific Flyway during 1979-82. The population declined by 75% in the decade preceding our study but was stable during our investigation. Annual survival of adults (0.749, SE = 0.045) was 7% higher than during an earlier study. We developed a simple population model which suggests that recent (1985-96) survival rates may be as much as 10% higher in adults than the 1979-82 rate, which corresponds to population increases observed since 1985. Survival of adult females varied seasonally; monthly survival during a period of winter when no hunting or migration occurred was higher (0.986, SE = 0.015) than monthly survival at other times (0.964, SE = 0.006). Survival of adult males varied among years and with a general seasonal trend inverse to that for females. An index of body condition was positively related to survival of adult females in fall and spring, but not for adult males or immature geese. Monthly survival of immatures was lower during their first hunting season (0.886, SE = 0.026) than during all subsequent seasons (0.963, SE = 0.007). Annual survival of immatures beginning 1 October, immediately before the hunting season, was 0.471. Corresponding variations in survival rates, population numbers, and hunting regulations suggest that hunting may have influenced survival in this population of greater white-fronted geese. JF - Journal of Wildlife Management AU - Schmutz, JA AU - Ely, C R AD - U.S. Geological Survey, Biological Resources Division, Alaska Biological Science Center, 1011 East Tudor Road, Anchorage, AK 99503, USA, joel_schmutz@usgs.gov Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 1239 EP - 1249 VL - 63 IS - 4 SN - 0022-541X, 0022-541X KW - North America KW - Ecology Abstracts KW - Anser albifrons frontalis KW - Survival KW - Population dynamics KW - Seasonal variations KW - Models KW - Sex KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17490178?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Wildlife+Management&rft.atitle=Survival+of+greater+white-fronted+geese%3A+Effects+of+year%2C+season%2C+sex%2C+and+body+condition&rft.au=Schmutz%2C+JA%3BEly%2C+C+R&rft.aulast=Schmutz&rft.aufirst=JA&rft.date=1999-10-01&rft.volume=63&rft.issue=4&rft.spage=1239&rft.isbn=&rft.btitle=&rft.title=Journal+of+Wildlife+Management&rft.issn=0022541X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Anser albifrons frontalis; Sex; Seasonal variations; Survival; Population dynamics; Models ER - TY - JOUR T1 - Effects of drought on desert tortoise movement and activity AN - 17490018; 4686058 AB - We monitored movement and activity patterns of 38 desert tortoises (Gopherus agassizii) at 2 locations in the southcentral Mojave Desert during 2 consecutive years differing markedly in winter rainfall. During the first year, winter precipitation was 225% greater than the long-term average for this region, whereas a drought the following year resulted in precipitation that was 25% of the long-term average. These winter rains produced 2 distinct patterns of annual plant productivity: a bloom of annuals the first year, followed by their complete absence the second year. As measured by radiotelemetry, home range size, the number of different burrows used, average distances traveled per day, and levels of surface versus burrow activity were significantly reduced in both populations during the drought year. The pooled distribution of between-observation distances traveled showed a shift favoring shorter-distance movements during the drought year. Differences in levels of winter precipitation between years and the resulting variation of winter annual biomass in the spring appear to play a significant role in desert tortoise movement and activity patterns. Future management and conservation plans for the desert tortoise should consider weather and productivity as important factors influencing annual home range size, number of burrows used, average distances traveled, and activity levels. JF - Journal of Wildlife Management AU - Duda, J J AU - Krzysik, A J AU - Freilich, JE AD - U.S. Geological Survey, Biological Resources Division, Western Fisheries Research Center, 6505 NE 65th, Seattle, WA 98115, USA, jeff_duda@usgs.gov Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 1181 EP - 1192 VL - 63 IS - 4 SN - 0022-541X, 0022-541X KW - Desert tortoise KW - USA, California KW - Animal Behavior Abstracts; Ecology Abstracts KW - Deserts KW - Movements KW - Activity patterns KW - Gopherus agassizii KW - Droughts KW - Y 25504:Vertebrates (excluding fish, birds & mammals) KW - D 04670:Reptiles UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17490018?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft.genre=dissertations+%26+theses&rft.jtitle=&rft.atitle=&rft.au=WOODS%2C+BARBARA+JANE+SIMMONS&rft.aulast=WOODS&rft.aufirst=BARBARA+JANE&rft.date=1985-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=MIRTHFUL+LAUGHTER+AND+DIRECTED+RELAXATION%3A++A+COMPARISON+OF+PHYSIOLOGICAL+RESPONSES+%28HUMOR%29&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Gopherus agassizii; Droughts; Deserts; Movements; Activity patterns ER - TY - JOUR T1 - At-sea distribution of Spectacled Eiders: A 120-year-old mystery resolved AN - 17489936; 4679033 AB - The at-sea distribution of the threatened Spectacled Eider (Somateria fischeri) has remained largely undocumented. We identified migration corridors, staging and molting areas, and wintering areas of adult Spectacled Eiders using implanted satellite transmitters in birds from each of the three extant breeding grounds (North Slope and Yukon-Kuskokwim Delta in Alaska and arctic Russia). Based on transmitter locations, we conducted aerial surveys to provide visual confirmation of eider flocks and to estimate numbers of birds. We identified two principal molting and staging areas off coastal Alaska (Ledyard Bay and eastern Norton Sound) and two off coastal Russia (Mechigmenskiy Bay on the eastern Chukotka Peninsula, and the area between the Indigirka and Kolyma deltas in the Republic of Sakha). We estimated that >10,000 birds molt and stage in monospecific flocks at Mechigmenskiy and Ledyard bays, and several thousand molt and stage in eastern Norton Sound. We further identified eastern Norton Sound as the principal molting and staging area for females nesting on the Yukon-Kuskokwim Delta, and Ledyard Bay and Mechigmenskiy Bay as the principal molting and staging areas for females nesting on the North Slope. Males marked at all three breeding grounds molt and stage in Mechigmenskiy Bay, Ledyard Bay, and the Indigirka-Kolyma delta region. Males from the Yukon-Kuskokwim Delta molt and stage mainly at Mechigmenskiy Bay. Equal numbers of males from the North Slope molt and stage at all three areas, and most males from arctic Russia molt and stage at the Indigirka-Kolyma delta region. Postbreeding migration corridors were offshore in the Bering, Chukchi, and Beaufort seas. In winter, eiders were in the Bering Sea south of St. Lawrence Island. Our estimates from surveys in late winter and early spring suggest that at least 333,000 birds winter in single-species flocks in the pack ice in the Bering Sea. JF - Auk AU - Petersen, M R AU - Larned, W W AU - Douglas, D C AD - U.S. Geological Survey, Biological Resources Division, Alaska Biological Science Center, 1011 East Tudor Road, Anchorage, Alaska 99503, USA, margaret_petersen@usgs.gov Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 1009 EP - 1020 VL - 116 IS - 4 SN - 0004-8038, 0004-8038 KW - Russia KW - Spectacled eider KW - USA, Alaska KW - pack ice KW - Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Marine KW - Somateria fischeri KW - Ecological distribution KW - INE, USA, Alaska KW - Rare species KW - Molting KW - Sex differences KW - Habitat KW - Biotelemetry KW - INW, Russia KW - Migrations KW - Moulting KW - Habitat utilization KW - Population number KW - Q1 08421:Migrations and rhythms KW - D 04671:Birds KW - O 1050:Vertebrates, Urochordates and Cephalochordates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17489936?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Auk&rft.atitle=At-sea+distribution+of+Spectacled+Eiders%3A+A+120-year-old+mystery+resolved&rft.au=Petersen%2C+M+R%3BLarned%2C+W+W%3BDouglas%2C+D+C&rft.aulast=Petersen&rft.aufirst=M&rft.date=1999-10-01&rft.volume=116&rft.issue=4&rft.spage=1009&rft.isbn=&rft.btitle=&rft.title=Auk&rft.issn=00048038&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Ecological distribution; Migrations; Moulting; Rare species; Habitat; Biotelemetry; Population number; Habitat utilization; Sex differences; Molting; Somateria fischeri; INW, Russia; INE, USA, Alaska; Marine ER - TY - JOUR T1 - Population energetics of northern pintails wintering in the Sacramento Valley, California AN - 17489866; 4686062 AB - Recovery of northern pintail (Anas acuta) breeding populations may be facilitated by improved management of winter food and habitat resources. We estimated daily energy expenditure (DEE) of pintails, which included energy required from food and carcass reserves (DER sub(food), DER sub(reserves)), from mid-August to mid-March during a dry (1980-81) and a wet (1981-82) winter in the Sacramento Valley, California, using equations for existence metabolism (EM; kJ/day) and estimates of body mass, carcass composition, food habits, and apparent metabolizable energy (AME) of winter foods. We used these values and food density (kg/ha) to model population food and habitat (ha) requirements. Predicted DEE by monthly period ranged from 794 to 1,180 kJ/day for males and 700 to 1,044 kJ/day for females. Pintails consumed a predicted 49-82 g of food/day from wetlands and rice fields. The DEE was highest in September-October or October-November and again in January-February, and DER sub(reserves) was greater during November-December or December-January (up to 11.6% of DEE), and during the dry winter. Total food consumed by the larger pintail population present in the wet winter of 1981-82 exceeded that of the smaller population in the dry winter of 1980-81, both from wetlands (2.89 vs. 2.52 million kg) and harvested rice fields (11.4 vs. 9.37 million kg). Likewise, the cumulative area of wetlands and rice fields used to provide food was greater in the wet (2,060 ha of wetlands, 41,456 ha of rice fields) than dry winter (1,782 ha of wetlands, 33,941 ha of rice fields); these totals accounted for up to 23% of available rice fields and 9% of available wetlands. Population food and habitat requirements peaked in December-January, coinciding with peak pintail populations but not peak DEE (Jan-Feb). Model outcomes were most sensitive to variation in food density, AME, percentage of food obtained from wetlands and rice fields, and pintail abundance. Food and habitat seemed adequate for pintail populations wintering in the Sacramento Valley in the 1980s and presently; however, this conclusion must be validated by modeling bioenergetic requirements for other abundant waterfowl and wildlife that forage in rice fields and wetlands in this region. JF - Journal of Wildlife Management AU - Miller, M R AU - Newton, W E AD - U.S. Geological Survey, Biological Resources Division, Western Ecological Research Center, Dixon Field Station, 6924 Tremont Road, Dixon, CA 95620, USA, michael_r_miller@usgs.gov Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 1222 EP - 1238 VL - 63 IS - 4 SN - 0022-541X, 0022-541X KW - Northern pintail KW - USA, California KW - Ecology Abstracts KW - Anas acuta KW - Management KW - Food KW - Energy requirements KW - Metabolism KW - Models KW - Winter KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17489866?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Wildlife+Management&rft.atitle=Population+energetics+of+northern+pintails+wintering+in+the+Sacramento+Valley%2C+California&rft.au=Miller%2C+M+R%3BNewton%2C+W+E&rft.aulast=Miller&rft.aufirst=M&rft.date=1999-10-01&rft.volume=63&rft.issue=4&rft.spage=1222&rft.isbn=&rft.btitle=&rft.title=Journal+of+Wildlife+Management&rft.issn=0022541X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Anas acuta; Winter; Management; Energy requirements; Metabolism; Food; Models ER - TY - JOUR T1 - Precocious Breeding by Yearling Giant Canada Geese AN - 17489495; 4679045 JF - Auk AU - Drobney, R D AU - Checkett, J M AU - Coluccy, J M AU - Graber, DA AD - United States Geological Survey, Biological Resources Division, Missouri Cooperative Fish and Wildlife Research Unit, University of Missouri, Columbia, Missouri 65211, USA, drobneyr@.missouri.edu Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 1145 EP - 1147 VL - 116 IS - 4 SN - 0004-8038, 0004-8038 KW - Canada goose KW - Animal Behavior Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Breeding KW - Sexual maturity KW - Sexual reproduction KW - Reproductive behavior KW - Branta canadensis maxima KW - Reproductive behaviour KW - Biological age KW - Freshwater KW - D 04671:Birds KW - Y 25426:Birds KW - Q1 08364:Reproduction and development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17489495?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Auk&rft.atitle=Precocious+Breeding+by+Yearling+Giant+Canada+Geese&rft.au=Drobney%2C+R+D%3BCheckett%2C+J+M%3BColuccy%2C+J+M%3BGraber%2C+DA&rft.aulast=Drobney&rft.aufirst=R&rft.date=1999-10-01&rft.volume=116&rft.issue=4&rft.spage=1145&rft.isbn=&rft.btitle=&rft.title=Auk&rft.issn=00048038&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Breeding; Sexual maturity; Sexual reproduction; Biological age; Reproductive behaviour; Reproductive behavior; Branta canadensis maxima; Freshwater ER - TY - JOUR T1 - Evaluation of Mist-net Sampling as an Index to Productivity in Kirtland's Warblers AN - 17488827; 4679046 JF - Auk AU - Bart, J AU - Kepler, C AU - Sykes, P AU - Bocetti, C AD - United States Geological Survey, Forest and Rangeland Ecosystem Science Center, Snake River Field Station, Boise, Idaho 83706, USA, jbart@eagle.idbsu.edu Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 1147 EP - 1151 VL - 116 IS - 4 SN - 0004-8038, 0004-8038 KW - Kirtland's warbler KW - Ecology Abstracts KW - Catching methods KW - Population studies KW - Dendroica kirtlandii KW - Productivity KW - Methodology KW - D 04671:Birds KW - D 04001:Methodology - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17488827?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Auk&rft.atitle=Evaluation+of+Mist-net+Sampling+as+an+Index+to+Productivity+in+Kirtland%27s+Warblers&rft.au=Bart%2C+J%3BKepler%2C+C%3BSykes%2C+P%3BBocetti%2C+C&rft.aulast=Bart&rft.aufirst=J&rft.date=1999-10-01&rft.volume=116&rft.issue=4&rft.spage=1147&rft.isbn=&rft.btitle=&rft.title=Auk&rft.issn=00048038&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Dendroica kirtlandii; Population studies; Productivity; Methodology; Catching methods ER - TY - JOUR T1 - Groundwater geochemistry in the Seminole Well Field, Cedar Rapids, Iowa AN - 17460219; 4660022 AB - The City of Cedar Rapids obtains its municipal water supply from four well fields in an alluvial aquifer along the Cedar River in east-central Iowa. Since 1992, the City and the U.S. Geological Survey have cooperatively studied the groundwater-flow system and water chemistry near the well fields. The geochemistry in the alluvial aquifer near the Seminole Well Field was assessed to identify potentially reactive minerals and possible chemical reactions that produce observed changes in water chemistry. Calcite, dolomite, ferrihydrite, quartz, rhodochrosite, and siderite were identified as potentially reactive minerals by calculating saturation indexes. Aluminosilicate minerals including albite, Ca-montmorillonite, gibbsite, illite, K-feldspar, and kaolinite were identified as potentially reactive minerals using hypothetical saturation indexes calculated with an assumed dissolved aluminum concentration of 1 microgram per liter. Balanced chemical equations derived from inverse-modeling techniques were used to assess chemical reactions as precipitation percolates to the water table. Calcite dissolution was predominate, but aluminosilicate weathering, cation exchange, and redox reactions also likely occurred. Microbial-catalyzed redox reactions altered the chemical composition of water infiltrating from the Cedar River into the alluvial aquifer by consuming dissolved oxygen, reducing nitrate, and increasing dissolved iron and manganese concentrations. Nitrate reduction only occurred in relatively shallow (3 to 7 meters below land surface) groundwater near the Cedar River and did not occur in water infiltrating to deeper zones of the alluvial aquifer. JF - Journal of the American Water Resources Association AU - Boyd, R A AD - U.S. Geological Survey/Water Resources Division, P.O. Box 1230, Iowa City, Iowa 52244, USA, raboyd@usgs.gov Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 1257 EP - 1268 VL - 35 IS - 5 SN - 1093-474X, 1093-474X KW - well fields KW - USA, Iowa KW - Water Resources Abstracts KW - Drinking Water KW - Geochemistry KW - Water Supply KW - Infiltration KW - Water Table KW - Chemical Composition KW - Groundwater KW - Alluvial Aquifers KW - Oxidation-reduction Potential KW - SW 0880:Chemical processes KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17460219?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Groundwater+geochemistry+in+the+Seminole+Well+Field%2C+Cedar+Rapids%2C+Iowa&rft.au=Boyd%2C+R+A&rft.aulast=Boyd&rft.aufirst=R&rft.date=1999-10-01&rft.volume=35&rft.issue=5&rft.spage=1257&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Alluvial Aquifers; Groundwater; Oxidation-reduction Potential; Geochemistry; Chemical Composition; Infiltration; Water Table; Water Supply; Drinking Water ER - TY - JOUR T1 - Klamath-Siskiyou Herpetofauna: Biogeographic Patterns and Conservation Strategies AN - 17429608; 4647257 AB - The Klamath-Siskiyou region of southwest Oregon and northwest California (USA) has some of the most complex landscape mosaics and plant communities in western North America, reflecting its marked diversity of precipitation and topography. With 38 native species of amphibians and reptiles, the Klamath-Siskiyou region has the most species-rich herpetofauna of any similarly sized mountain range in the Pacific Northwest. Although it is a biodiversity "hot spot," there are only two endemic species, both salamanders, in the Klamath-Siskiyou region. High diversity is due to the overlap of two major biogeographic groups: the Arcto- (= northern) and Madro- (= southern) Tertiary herpetofaunas. Many of the amphibians in the Klamath-Siskiyou region are restricted to specialized habitats. Much of our knowledge about the biology of the regional fauna is based on studies elsewhere. Distributional surveys and ecological research are needed to address how the herpetofauna responds to timber harvest and other human activities that may reduce populations and increase fragmentation of suitable habitats. Conservation of the region's diverse herpetofauna should emphasize strategies directed at habitat specialists and species at the latitudinal limits of their ranges. JF - Natural Areas Journal AU - Bury, R B AU - Pearl, CA AD - Forest and Rangeland, Ecosystem Science Center, USGS Biological Resources Division, 3200 Jefferson Way, Corvallis, OR 97331, USA Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 341 EP - 350 VL - 19 IS - 4 SN - 0885-8608, 0885-8608 KW - Amphibians KW - Reptiles KW - USA, Northwest KW - ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts KW - Forest industry KW - Biogeography KW - Ecological distribution KW - Environmental impact KW - Man-induced effects KW - Freshwater KW - Habitat KW - Environmental protection KW - Human impact KW - Reptilia KW - Logging KW - Amphibia KW - USA, Oregon, Klamath-Siskiyou Region KW - Nature conservation KW - USA, California, Klamath-Siskiyou Region KW - Conservation KW - Q5 08523:Conservation, wildlife management and recreation KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17429608?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Natural+Areas+Journal&rft.atitle=Klamath-Siskiyou+Herpetofauna%3A+Biogeographic+Patterns+and+Conservation+Strategies&rft.au=Bury%2C+R+B%3BPearl%2C+CA&rft.aulast=Bury&rft.aufirst=R&rft.date=1999-10-01&rft.volume=19&rft.issue=4&rft.spage=341&rft.isbn=&rft.btitle=&rft.title=Natural+Areas+Journal&rft.issn=08858608&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Logging; Biogeography; Forest industry; Ecological distribution; Nature conservation; Environmental impact; Man-induced effects; Habitat; Environmental protection; Conservation; Human impact; Reptilia; Amphibia; USA, Oregon, Klamath-Siskiyou Region; USA, California, Klamath-Siskiyou Region; Freshwater ER - TY - JOUR T1 - Role for Acetotrophic Methanogens in Methanogenic Biodegradation of Vinyl Chloride AN - 17414752; 4639333 AB - Under methanogenic conditions, stream-bed sediment microorganisms rapidly degraded [1,2- super(14)C]vinyl chloride to super(14)CH sub(4) and super(14)CO sub(2). Amendment with 2-bromoethanesulfonic acid eliminated super(14)CH sub(4) production and decreased super(14)CO sub(2) recovery by an equal molar amount. Results obtained with [ super(14)C]-ethene, [ super(14)C]acetate, or super(14)CO sub(2) as substrates indicated that acetotrophic methanogens were responsible for the production of super(14)CH sub(4) during biodegradation of [1,2- super(14)C]VC. JF - Environmental Science & Technology AU - Bradley, P M AU - Chapelle, F H AD - U.S. Geological Survey, Stephenson Center, Suite 129, Columbia, SC 29210, USA, pbradley@usgs.gov Y1 - 1999/10/01/ PY - 1999 DA - 1999 Oct 01 SP - 3473 EP - 3476 VL - 33 IS - 19 SN - 0013-936X, 0013-936X KW - 2-bromoethanesulfonic acid KW - vinyl chloride KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Biodegradation KW - Radioactive labelling KW - Methanogenic bacteria KW - A 01016:Microbial degradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17414752?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Role+for+Acetotrophic+Methanogens+in+Methanogenic+Biodegradation+of+Vinyl+Chloride&rft.au=Bradley%2C+P+M%3BChapelle%2C+F+H&rft.aulast=Bradley&rft.aufirst=P&rft.date=1999-10-01&rft.volume=33&rft.issue=19&rft.spage=3473&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes990395q LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Biodegradation; Methanogenic bacteria; Radioactive labelling DO - http://dx.doi.org/10.1021/es990395q ER - TY - JOUR T1 - Foods of American Badgers in West-central Minnesota and Southeastern North Dakota During the Duck Nesting Season AN - 17399131; 4632420 AB - Although the American badger (Taxidea taxus) is common in grasslands and preys on a wide diversity of foods including birds, little is known about badger diet in areas where nesting ducks are common. Small mammals, primarily Muridae and Geomyidae, were the most common food items in the diet of badgers collected from west-central Minnesota and southeastern North Dakota during April-July 1987 through 1990, based on analysis of gastrointestinal tracts of 47 adult ( greater than or equal to 1-y-old) and 5 juvenile (<6-mo-old) badgers. Remains of mammals occurred in 98% of samples from adult badgers. Small quantities of insects were found in 40% of adult samples. Bird remains were in 32% of adult samples, most birds identified as Anatidae; ducks or ducklings occurred in 27% and duck eggs in 60% of those samples. Remains of reptiles, amphibians and mollusks were present, but were less common than other foods. Insects and bird eggs were more common during spring (April-May) than summer (June-July). Birds were more frequent in diets of adults than juvenile badgers. JF - American Midland Naturalist AU - Sovada, MA AU - Roaldson, J M AU - Sargeant, AB AD - Northern Prairie Wildlife Research Center, U.S. Geological Survey, Jamestown, ND 58401, USA, marsha_sovada@usgs.gov Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 410 EP - 414 PB - [URL:http://journals.allenpress.com/jrnlserv/?request=get-abstract &issn=0003-0031&volume=142&page=410] VL - 142 IS - 2 SN - 0003-0031, 0003-0031 KW - Badger KW - USA, Minnesota KW - USA, North Dakota KW - Ecology Abstracts KW - Food organisms KW - Taxidea taxus KW - Food preferences KW - Seasonal variations KW - Age differences KW - D 04672:Mammals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17399131?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Midland+Naturalist&rft.atitle=Foods+of+American+Badgers+in+West-central+Minnesota+and+Southeastern+North+Dakota+During+the+Duck+Nesting+Season&rft.au=Sovada%2C+MA%3BRoaldson%2C+J+M%3BSargeant%2C+AB&rft.aulast=Sovada&rft.aufirst=MA&rft.date=1999-10-01&rft.volume=142&rft.issue=2&rft.spage=410&rft.isbn=&rft.btitle=&rft.title=American+Midland+Naturalist&rft.issn=00030031&rft_id=info:doi/10.1043%2F0003-0031%281999%29142%280410%3AFOABIW%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Taxidea taxus; Food organisms; Food preferences; Seasonal variations; Age differences DO - http://dx.doi.org/10.1043/0003-0031(1999)142(0410:FOABIW)2.0.CO;2 ER - TY - JOUR T1 - Rodent use of anthropogenic and 'natural' desert riparian habitat, lower Colorado River, Arizona AN - 17398259; 4625899 AB - The role of native trees, Fremont cottonwood (Populus fremontii) and Goodding willow (Salix gooddingii), in structuring the riparian small mammal assemblage on rivers in the American desert southwest is unclear. It is unknown, for example, whether these trees directly or indirectly provide the food or shelter necessary for the presence of any species. Because of the rapid and widespread decline of gallery forest, due in part to river regulation, the retention of remnant stands and replacement of lost stands are major regional conservation issues. To elucidate small mammal-forest linkages, we compared patterns of macrohabitat use among terrestrial small mammals at two rehabilitated and one unmanipulated alluvial floodplain site along the highly regulated lower Colorado River. We also compared current patterns to the Colorado River faunal associations Joseph Grinnell documented in 1910, prior to significant flow regulation. We used grid-based, capture-mark-recapture techniques at two revegetation sites, each a mosaic of six distinct macrohabitats, including planted cottonwood/willow, to associate species with specific macrohabitats. We also trapped a 'reference' grid containing naturally regenerating cottonwood and willow at a site on the lower Bill Williams River floodplain. Despite very poor development of cottonwood plantings at one of the revegetated sites, each supported at least nine species and harbored all seven species that Grinnell associated with areas flooded nearly every year. The set of species Grinnell associated with cottonwood/willow stands (Peromyscus maniculatus, Reithrodontomys megalotis, and Sigmodon arizonae) was trapped at both revegetation sites but entirely absent at the reference site. The Bill Williams site may be inaccessible to Sigmodon, but the absence of the other two species is probably a consequence of differences in floodplain structure and functioning among the study sites as well as between the Bill Williams site and historic Colorado River riparian areas. Our data suggest the richness of the native lower Colorado River riparian small mammal assemblage is unrelated to the presence or absence of cottonwood/willow trees, but does depend in part upon the presence or absence of dense herbaceous vegetation. Resource managers attempting to rehabilitate degraded desert riverine ecosystems need to consider understory as well as overstory plant species in revegetation efforts. JF - Regulated Rivers: Research & Management AU - Andersen, D C AU - Nelson, S M AD - Bureau of Reclamation, D-8220, Denver, CO 80225-5007, USA Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 377 EP - 393 VL - 15 IS - 5 SN - 0886-9375, 0886-9375 KW - Rodents KW - USA, Arizona, Lower Colorado R. KW - Ecology Abstracts; Water Resources Abstracts KW - Willow Trees KW - Regulated Rivers KW - Cottonwood Trees KW - Habitats KW - Deserts KW - Riparian Land KW - Riparian environments KW - Conservation KW - Habitat utilization KW - Rodentia KW - Wildlife Management KW - SW 4070:Ecological impact of water development KW - D 04672:Mammals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17398259?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Regulated+Rivers%3A+Research+%26+Management&rft.atitle=Rodent+use+of+anthropogenic+and+%27natural%27+desert+riparian+habitat%2C+lower+Colorado+River%2C+Arizona&rft.au=Andersen%2C+D+C%3BNelson%2C+S+M&rft.aulast=Andersen&rft.aufirst=D&rft.date=1999-10-01&rft.volume=15&rft.issue=5&rft.spage=377&rft.isbn=&rft.btitle=&rft.title=Regulated+Rivers%3A+Research+%26+Management&rft.issn=08869375&rft_id=info:doi/10.1002%2F%28SICI%291099-1646%28199909%2F10%2915%3A53.3.CO%3B2-H LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Rodentia; Regulated Rivers; Deserts; Rodents; Cottonwood Trees; Willow Trees; Riparian Land; Habitats; Conservation; Wildlife Management; Habitat utilization; Riparian environments DO - http://dx.doi.org/10.1002/(SICI)1099-1646(199909/10)15:5<377::AID-RRR549>3.3.CO;2-H ER - TY - JOUR T1 - Refinement, validation, and application of a benthic condition index for Northern Gulf of Mexico estuaries AN - 968173972; 16466741 AB - By applying discriminant analysis to benthic macroinvertebrate data, we have developed an indicator of benthic condition for northern Gulf of Mexico estuaries. The data used were collected by the United states Environmental Protection Agency's Environmental Monitoring and Assessment Program (EMAP) in the Louisianian Province from 1991 to 1994. This benthic index represents a linear combination of the following weighted parameters: the proportion of expected species diversity, the mean abundance of tubificid oligochaetes, the percent of total abundance represented by capitellid polychaetes, the percent of total abundance represented by bivalve mollusks, and the percent of total abundance represented by amphipods. We successfully validated and retrospectively applied the benthic index to all of the benthic data collected by EMAP in the Louisianian Province. This benthic index was also calculated for independent data collected from Pensacola Bay, Florida, in order to demonstrate its flexibility and applicability to different estuarine systems within the same biogeographic region. The benthic index is a useful and valid indicator of estuarine condition that is intended to provide environmental managers with a simple tool for assessing the health of benthic macroinvertebrate communities. JF - Estuaries AU - Engle, Virginia D AU - Summers, JKevin AD - Gulf Breeze Project Office, United States Geological Survey, Biological Resources Division, 1 Sabine Island Drive, 32561-5299, Gulf Breeze, Florida, engle.virginia@epa.gov Y1 - 1999/09// PY - 1999 DA - September 1999 SP - 624 EP - 635 PB - Estuarine Research Federation, 490 Chippingwood Dr. Port Republic MD 20676-2140 United States VL - 22 IS - 3 SN - 0160-8347, 0160-8347 KW - Water Resources Abstracts; Pollution Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Flexibility KW - Abundance KW - Indicators KW - Macroinvertebrates KW - Gulfs KW - Oligochaeta KW - environmental management KW - Assessments KW - Brackishwater environment KW - Mollusks KW - Environmental monitoring KW - Marine KW - ASW, USA, Florida KW - Biogeography KW - Amphipods KW - Estuaries KW - Brackish KW - ASW, USA, Florida, Pensacola Bay KW - mollusks KW - Environmental protection KW - ASW, Mexico Gulf KW - Bivalvia KW - EPA KW - Community composition KW - Species diversity KW - Marine molluscs KW - Monitoring KW - Zoobenthos KW - SW 5010:Network design KW - Q1 08463:Habitat community studies KW - O 4090:Conservation and Environmental Protection KW - P 1000:MARINE POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/968173972?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Estuaries&rft.atitle=Refinement%2C+validation%2C+and+application+of+a+benthic+condition+index+for+Northern+Gulf+of+Mexico+estuaries&rft.au=Engle%2C+Virginia+D%3BSummers%2C+JKevin&rft.aulast=Engle&rft.aufirst=Virginia&rft.date=1999-09-01&rft.volume=22&rft.issue=3&rft.spage=624&rft.isbn=&rft.btitle=&rft.title=Estuaries&rft.issn=01608347&rft_id=info:doi/10.2307%2F1353050 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-04-01 N1 - Last updated - 2016-02-18 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Community composition; Biogeography; Estuaries; Marine molluscs; Brackishwater environment; Zoobenthos; Environmental protection; environmental management; EPA; Species diversity; Abundance; mollusks; Assessments; Amphipods; Flexibility; Indicators; Macroinvertebrates; Monitoring; Mollusks; Gulfs; Bivalvia; Oligochaeta; ASW, Mexico Gulf; ASW, USA, Florida; ASW, USA, Florida, Pensacola Bay; Marine; Brackish DO - http://dx.doi.org/10.2307/1353050 ER - TY - JOUR T1 - An inventory of vertebrate ichnofossils from Zion National Park, Utah AN - 52366110; 2000-033149 JF - Journal of Vertebrate Paleontology AU - Smith, Joshua A AU - Santucci, Vincent L AU - Anonymous Y1 - 1999/09// PY - 1999 DA - September 1999 SP - 77 PB - University of Oklahoma, Norman, OK VL - 19 IS - 3, SUPPL. SN - 0272-4634, 0272-4634 KW - United States KW - Chordata KW - Jurassic KW - Zion National Park KW - ichnofossils KW - tracks KW - Mesozoic KW - Aves KW - Lower Jurassic KW - Grallator KW - Washington County Utah KW - Triassic KW - inventory KW - Kayenta Formation KW - surveys KW - Upper Triassic KW - Utah KW - Vertebrata KW - Moenave Formation KW - Tetrapoda KW - 11:Vertebrate paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52366110?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Vertebrate+Paleontology&rft.atitle=An+inventory+of+vertebrate+ichnofossils+from+Zion+National+Park%2C+Utah&rft.au=Smith%2C+Joshua+A%3BSantucci%2C+Vincent+L%3BAnonymous&rft.aulast=Smith&rft.aufirst=Joshua&rft.date=1999-09-01&rft.volume=19&rft.issue=3%2C+SUPPL.&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=Journal+of+Vertebrate+Paleontology&rft.issn=02724634&rft_id=info:doi/ L2 - http://www.bioone.org/loi/vrpa LA - English DB - GeoRef N1 - Conference title - Fifty-ninth annual meeting, Society of Vertebrate Paleontology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Aves; Chordata; Grallator; ichnofossils; inventory; Jurassic; Kayenta Formation; Lower Jurassic; Mesozoic; Moenave Formation; surveys; Tetrapoda; tracks; Triassic; United States; Upper Triassic; Utah; Vertebrata; Washington County Utah; Zion National Park ER - TY - JOUR T1 - A review of avian ichnotaxonomy AN - 52364729; 2000-033173 JF - Journal of Vertebrate Paleontology AU - Thompson, Kristine M AU - Santucci, Vincent L AU - Nyborg, Torrey G AU - Anonymous Y1 - 1999/09// PY - 1999 DA - September 1999 SP - 80 PB - University of Oklahoma, Norman, OK VL - 19 IS - 3, SUPPL. SN - 0272-4634, 0272-4634 KW - methods KW - Aves KW - Chordata KW - identification KW - classification KW - ichnofossils KW - tracks KW - taxonomy KW - Vertebrata KW - Tetrapoda KW - 11:Vertebrate paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52364729?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Vertebrate+Paleontology&rft.atitle=A+review+of+avian+ichnotaxonomy&rft.au=Thompson%2C+Kristine+M%3BSantucci%2C+Vincent+L%3BNyborg%2C+Torrey+G%3BAnonymous&rft.aulast=Thompson&rft.aufirst=Kristine&rft.date=1999-09-01&rft.volume=19&rft.issue=3%2C+SUPPL.&rft.spage=80&rft.isbn=&rft.btitle=&rft.title=Journal+of+Vertebrate+Paleontology&rft.issn=02724634&rft_id=info:doi/ L2 - http://www.bioone.org/loi/vrpa LA - English DB - GeoRef N1 - Conference title - Fifty-ninth annual meeting, Society of Vertebrate Paleontology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Aves; Chordata; classification; ichnofossils; identification; methods; taxonomy; Tetrapoda; tracks; Vertebrata ER - TY - JOUR T1 - Late Tertiary vertebrate tracks from Death Valley National Park, California AN - 52320098; 2000-065257 JF - Journal of Vertebrate Paleontology AU - Nyborg, Torrey G AU - Santucci, Vincent L AU - Anonymous Y1 - 1999/09// PY - 1999 DA - September 1999 SP - 66 EP - 67 PB - University of Oklahoma, Norman, OK VL - 19 IS - 3, Suppl. SN - 0272-4634, 0272-4634 KW - United States KW - Death Valley National Park KW - ichnofossils KW - Cenozoic KW - California KW - Theria KW - Inyo County California KW - Tridactylla KW - Eutheria KW - Perissodactyla KW - Chordata KW - Carnivora KW - Mammalia KW - Artiodactyla KW - Proboscidea KW - tracks KW - Aves KW - Tertiary KW - upper Tertiary KW - inventory KW - lacustrine environment KW - surveys KW - Vertebrata KW - Tetrapoda KW - 11:Vertebrate paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52320098?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Vertebrate+Paleontology&rft.atitle=Late+Tertiary+vertebrate+tracks+from+Death+Valley+National+Park%2C+California&rft.au=Nyborg%2C+Torrey+G%3BSantucci%2C+Vincent+L%3BAnonymous&rft.aulast=Nyborg&rft.aufirst=Torrey&rft.date=1999-09-01&rft.volume=19&rft.issue=3%2C+Suppl.&rft.spage=66&rft.isbn=&rft.btitle=&rft.title=Journal+of+Vertebrate+Paleontology&rft.issn=02724634&rft_id=info:doi/ L2 - http://www.bioone.org/loi/vrpa LA - English DB - GeoRef N1 - Conference title - Fifty-ninth annual meeting Society of Vertebrate Paleontology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Artiodactyla; Aves; California; Carnivora; Cenozoic; Chordata; Death Valley National Park; Eutheria; ichnofossils; inventory; Inyo County California; lacustrine environment; Mammalia; Perissodactyla; Proboscidea; surveys; Tertiary; Tetrapoda; Theria; tracks; Tridactylla; United States; upper Tertiary; Vertebrata ER - TY - JOUR T1 - Mineral investigations in the Koyukuk mining district, Northern Alaska AN - 52280896; 2001-003427 AB - The Bureau of Land Management Anchorage Mineral Resource Team (AMRT) is conducting a five-year mineral resource assessment of the 11.6 million acre Koyukuk mining district in northern Alaska. The district comprises the upper portion of the Koyukuk River drainage basin, the headwaters of which lie on the southern flank of the Brooks Range. The federal government manages 72% of the land within the district. District production totals approximately 286,000 ounces of placer gold and six tons of antimony ore. In 1998 there were 13 active placer mines in the district. There are 407 documented mines, prospects, and mineral occurrences within the district. These include gold placers; gold- and antimony-bearing quartz veins; copper- and zinc-bearing massive sulfides; copper-bearing porphyries; tungsten-, copper-, and tin-bearing skarns; tin-bearing greisens; chromite; and coal. A total of 175 sites have been examined to date and 960 rock, soil, stream sediment, pan concentrate, and placer samples collected. A portion of the study, consisting of an airborne geophysical survey, was done in cooperation with the Alaska Division of Geological and Geophysical Surveys (ADGGS). Ground magnetic and electromagnetic conductivity surveys were done by AMRT as a followup to the airborne survey. In addition ground penetrating radar surveys were conducted over known placer deposits to identify channel locations and bedrock depth. Significant results from the first two years of this assessment include the delineation of anomalous gold values within volcanic rocks on the upper Indian River, anomalous placer gold in bench gravels above the Hammond River, gold-bearing quartz veinlets on nearby Vermont and Smith Creeks, and gold anomalies associated with skarn and massive sulfide occurrences in the Chandalar copper belt north of Bettles River. JF - BLM-Alaska Open File Report AU - Kurtak, Joseph M AU - Klieforth, Robert F AU - Clark, John M AU - Williams, Earle M Y1 - 1999/09// PY - 1999 DA - September 1999 SP - 158 EP - 158, 1 sheet PB - Bureau of Land Management, Alaska State Office, Anchorage, AK KW - Type: colored site location maps KW - United States KW - mineral exploration KW - resources KW - geophysical surveys KW - stream sediments KW - antimony ores KW - spatial distribution KW - sampling KW - metamorphic rocks KW - Koyukuk mining district KW - sediments KW - drainage basins KW - gold ores KW - copper ores KW - skarn KW - Yukon-Koyukuk Basin KW - tungsten ores KW - tin ores KW - host rocks KW - zinc ores KW - site location maps KW - veins KW - massive sulfide deposits KW - placers KW - maps KW - Northern Alaska KW - metal ores KW - surveys KW - massive deposits KW - Alaska KW - fluvial environment KW - metasomatic rocks KW - land use KW - 27A:Economic geology, geology of ore deposits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52280896?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Kurtak%2C+Joseph+M%3BKlieforth%2C+Robert+F%3BClark%2C+John+M%3BWilliams%2C+Earle+M&rft.aulast=Kurtak&rft.aufirst=Joseph&rft.date=1999-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Mineral+investigations+in+the+Koyukuk+mining+district%2C+Northern+Alaska&rft.title=Mineral+investigations+in+the+Koyukuk+mining+district%2C+Northern+Alaska&rft.issn=&rft_id=info:doi/ L2 - http://www.blm.gov/ak/st/en/info/gen_pubs/ofr.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 315 N1 - PubXState - AK N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Progress report; includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - #04510 N1 - SubjectsTermNotLitGenreText - Alaska; antimony ores; copper ores; drainage basins; fluvial environment; geophysical surveys; gold ores; host rocks; Koyukuk mining district; land use; maps; massive deposits; massive sulfide deposits; metal ores; metamorphic rocks; metasomatic rocks; mineral exploration; Northern Alaska; placers; resources; sampling; sediments; site location maps; skarn; spatial distribution; stream sediments; surveys; tin ores; tungsten ores; United States; veins; Yukon-Koyukuk Basin; zinc ores ER - TY - JOUR T1 - The Effects of Crude Oil and Remediation Burning on Three Clones of Smooth Cordgrass (Spartina alterniflora Loisel.) AN - 17599123; 4680733 AB - Burning has been employed as an oil spill remediation technique in coastal marshes, even though the combined and interactive effects of oil and burning on vegetation are poorly understood. Variation among clones of perennial marsh grasses in response to these perturbations is not known. We performed a greenhouse experiment designed to assess the effects of Venezuelan crude oil alone and of oil followed by burning on three clonal genets of Spartina alterniflora. The fully-crossed 6-mo experiment involved five dosages of oil (0 1 m super(-2), 4 l m super(-2), 8 l m super(-2) 16 l m super(-2), and 24 l m super(-2)) and two burn treatments (burned or unburned) applied to ramets from three clones. All oil-only dosages reduced survival, but burning after oiling (oil + burn treatments) increased survival relative to oil-only groups in all except the highest two oil dosages. Higher oil-only treatments also reduced ramet densities and inhibited density increases over 6 mo. Burning after treatment with the 16 l m super(-2) oil concentration allowed increased production of new ramets, but burning exacerbated the negative impacts on ramet density at the oil concentration of 24 l m super(-2). At some intermediate oil dosages, burning remediated the negative effects of oil on aboveground biomass production and growth in height. There was a significant effect of oil-only treatments on numbers of flowering ramets produced, in which two clones responded with decreased flower production and one exhibited increased flowering. There was no main effect of oil + burn on flowering. There were significant among-clones differences in all response variables to one or both treatments. Our experiment demonstrates that burning of oiled S. alterniflora marshes may have little measurable effect at low levels of Venezuelan crude oil, can remediate the effects of oil at intermediate oil concentrations, but can increase the negative impacts at high concentrations of oil. These results indicate that oil spills have the potential to adversely affect genetic diversity in S. alterniflora populations by eliminating some sensitive clonal variants or changing the relative dominance of genets. These results suggest certain clones may be better suited for phytoremediation or restoration planting following oil spills. JF - Estuaries AU - Smith, D L AU - Proffitt, CE AD - Wetlands Ecology Branch, National Wetlands Research Center, United States Geological Survey, Biological Resources Division, 700 Cajundome Blvd., Lafayette, LA 70506, USA, Edward_Proffitt@usgs.go Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 616 EP - 623 VL - 22 IS - 3A SN - 0160-8347, 0160-8347 KW - Burning KW - Controlled conditions KW - Spartina alterniflora KW - Pollution Abstracts; Ecology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Oceanic Abstracts KW - Flowering KW - Grasses KW - Survival KW - Pollution effects KW - Oil KW - Crude oil KW - Phytoremediation KW - Fire KW - Oil Spills KW - Oil pollution KW - Spartina KW - Oil removal KW - Plant populations KW - Oil spills KW - Clones KW - Experimental Data KW - Fires KW - Density KW - Environmental impact KW - Marshes KW - Biomass KW - Combustion KW - Incineration KW - Coastal zone KW - Marine pollution KW - Salt marshes KW - Remediation KW - Environmental restoration KW - P 1000:MARINE POLLUTION KW - O 4080:Pollution - Control and Prevention KW - SW 3070:Water quality control KW - Q5 08505:Prevention and control KW - D 04715:Reclamation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17599123?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Estuaries&rft.atitle=The+Effects+of+Crude+Oil+and+Remediation+Burning+on+Three+Clones+of+Smooth+Cordgrass+%28Spartina+alterniflora+Loisel.%29&rft.au=Smith%2C+D+L%3BProffitt%2C+CE&rft.aulast=Smith&rft.aufirst=D&rft.date=1999-09-01&rft.volume=22&rft.issue=3A&rft.spage=616&rft.isbn=&rft.btitle=&rft.title=Estuaries&rft.issn=01608347&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Clones; Crude oil; Salt marshes; Fire; Environmental impact; Pollution effects; Survival; Oil pollution; Oil removal; Plant populations; Environmental restoration; Burning; Oil spills; Fires; Coastal zone; Marine pollution; Phytoremediation; Grasses; Remediation; Marshes; Combustion; Flowering; Oil; Experimental Data; Incineration; Density; Oil Spills; Spartina; Biomass ER - TY - JOUR T1 - Effects of Ambient Water Quality on the Endangered Lost River Sucker in Upper Klamath Lake, Oregon AN - 17588590; 4671781 AB - Populations of the Lost River sucker Deltistes luxatus have declined so precipitously in the Upper Klamath Basin of Oregon and California that this fish was recently listed for federal protection as an endangered species. Although Upper Klamath Lake is a major refuge for this species, fish in the lake occasionally experience mass mortalities during summer and early fall. This field study was implemented to determine if fish mortalities resulted from degraded water quality conditions associated with seasonal blooms of phytoplankton, especially Aphanizomenon flos-aquae. Our results indicated that fish mortality did not always increase as water temperature, pH, and un-ionized ammonia concentration increased in Upper Klamath Lake. Little or no mortality occurred when these water quality variables attained their maximum values. On the other hand, an inverse relation existed between fish mortality and dissolved oxygen concentration. High mortality (>90%) occurred whenever dissolved oxygen concentrations decreased to 1.05 mg/L, whereas mortality was usually low (<10%) when dissolved oxygen concentrations equaled or exceeded 1.58 mg/L. Stepwise logistic regression also indicated that the minimum concentration of dissolved oxygen measured was the single most important determinant of fish mortality. JF - Transactions of the American Fisheries Society AU - Martin, BA AU - Saiki, M K AD - U.S. Geological Survey, Biological Resources Division, Western Fisheries Research Center, Dixon Duty Station, 6924 Tremont Road, Dixon, California 95620, USA, michael_saiki@usgs.gov Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 953 EP - 961 VL - 128 IS - 5 SN - 0002-8487, 0002-8487 KW - Deltistes luxatus KW - Lost river sucker KW - USA, California KW - USA, Oregon KW - USA, Oregon, Upper Klamath L. KW - endangered species KW - population decline KW - Ecology Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Pollution Abstracts KW - Aphanizomenon flos-aquae KW - Water Pollution KW - Chemical limnology KW - Phytoplankton KW - Freshwater KW - Water quality KW - Population dynamics KW - Dissolved oxygen KW - Lakes KW - Environmental monitoring KW - Mortality KW - Water Quality KW - Rare species KW - Population decline KW - Water quality control KW - Endangered species KW - Fish Populations KW - D 04803:Pollution effects KW - P 2000:FRESHWATER POLLUTION KW - Q1 08422:Environmental effects KW - SW 3030:Effects of pollution KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17588590?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Effects+of+Ambient+Water+Quality+on+the+Endangered+Lost+River+Sucker+in+Upper+Klamath+Lake%2C+Oregon&rft.au=Martin%2C+BA%3BSaiki%2C+M+K&rft.aulast=Martin&rft.aufirst=BA&rft.date=1999-09-01&rft.volume=128&rft.issue=5&rft.spage=953&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Water quality control; Chemical limnology; Phytoplankton; Rare species; Population dynamics; Dissolved oxygen; Mortality; Lakes; Endangered species; Population decline; Water quality; Water Pollution; Water Quality; Fish Populations; Aphanizomenon flos-aquae; Freshwater ER - TY - JOUR T1 - Biomass of Coastal Cutthroat Trout in Unlogged and Previously Clear-Cut Basins in the Central Coast Range of Oregon AN - 17586347; 4671775 AB - Populations of coastal cutthroat trout Oncorhynchus clarki clarki were sampled in 16 Oregon headwater streams during 1991-1993. These streams were above upstream migration barriers and distributed among basins that had been logged 20-30 and 40-60 years ago and basins that had not been logged but had burned 125-150 years ago. The objective of our study was to characterize the populations and habitats of age-1 or older cutthroat trout within these three forest management types. Streams within unlogged basins had relatively low levels and a small range of trout biomass (g/m super(2)). Streams in basins logged 40-60 years ago supported low levels but an intermediate range of trout biomass. Streams in basins logged 20-30 years ago supported the widest range of biomass, including the lowest and highest biomasses among all streams sampled. The variable that best explained the variation of trout biomass among all 16 streams was the amount of large woody debris (LWD). All streams were heavily shaded during at least part of the year by mostly closed tree canopies. Deciduous trees were more prominent in canopies over streams in logged basins, while conifers were more prominent in the stream canopies of unlogged basins. Our results suggest that trout production in basins extensively clear-cut 20-60 years ago may generally decrease or remain low over the next 50 or more years because of decreasing loads of remnant LWD, persistent low recruitment potential for new LWD, and persistent heavy shading by conifers. These logged basins are not likely to show an increase in trout biomass over the next 50 years unless reset by favorable natural disturbances or by habitat restoration efforts. JF - Transactions of the American Fisheries Society AU - Connolly, P J AU - Hall, J D AD - U.S. Geological Survey, Columbia River Research Laboratory, 5501-A Cook-Underwood Road, Cook, Washington 98605, USA, patrick_connolly@usgs.gov Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 890 EP - 899 VL - 128 IS - 5 SN - 0002-8487, 0002-8487 KW - Oncorhynchus clarki KW - USA, Oregon KW - Pollution Abstracts; Ecology Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Environmental Effects KW - Historical account KW - River Basins KW - Forests KW - Basins KW - Population dynamics KW - Habitat selection KW - Streams KW - Plant debris KW - Logging KW - Fisheries KW - Detritus KW - Headwaters KW - Lumber industry KW - Environmental impact KW - Habitat KW - Biomass KW - Land use KW - Ecosystem disturbance KW - Oncorhynchus clarki clarki KW - Trout KW - Population structure KW - Fish Populations KW - SW 2060:Effects on water of human nonwater activities KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - P 2000:FRESHWATER POLLUTION KW - D 04668:Fish KW - Q1 08442:Population dynamics KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17586347?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Biomass+of+Coastal+Cutthroat+Trout+in+Unlogged+and+Previously+Clear-Cut+Basins+in+the+Central+Coast+Range+of+Oregon&rft.au=Connolly%2C+P+J%3BHall%2C+J+D&rft.aulast=Connolly&rft.aufirst=P&rft.date=1999-09-01&rft.volume=128&rft.issue=5&rft.spage=890&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Logging; Environmental impact; Population structure; Habitat selection; Biomass; Ecosystem disturbance; Streams; Plant debris; Historical account; Fisheries; Lumber industry; Basins; Forests; Habitat; Population dynamics; Land use; Headwaters; Environmental Effects; River Basins; Trout; Fish Populations; Detritus; Oncorhynchus clarki clarki ER - TY - JOUR T1 - Are Shifts in Herbicide Use Reflected in Concentration Changes in Midwestern Rivers? AN - 17582468; 4645028 AB - In many Midwestern rivers, elevated concentrations of herbicides occur during runoff events for 1-3 months following application. The highest or "peak" herbicide concentration often occurs during one of these runoff events. Herbicide concentrations in rivers are affected by a number of factors, including herbicide use patterns within the associated basin. Changing agricultural practices, reductions in recommended and permitted herbicide applications, shifts to new herbicides, and greater environmental awareness in the agricultural community have resulted in changes to herbicide use patterns. In the Midwestern United States, alachlor use was much larger in 1989 than in 1995, while acetochlor was not used in 1989, and commonly used in 1995. Use of atrazine, cyanazine, and metolachlor was about the same in 1989 and 1995. Herbicide concentrations were measured in samples from 53 Midwestern rivers during the first major runoff event that occurred after herbicide application (postapplication) in 1989, 1990, 1994, and 1995. The median concentrations of atrazine, alachlor, cyanazine, metribuzin, metolachlor, propazine, and simazine all were significantly higher in 1989/90 than in 1994/95. The median acetochlor concentration was higher in 1995 than in 1994. Estimated daily yields for all herbicides and degradation products measured, with the exception of acetochlor, were higher in 1989/90 than in 1994/95. The differences in concentration and yield do not always parallel changes in herbicide use, suggesting that other changes in herbicide or crop management are affecting concentrations in Midwestern rivers during runoff events. JF - Environmental Science & Technology AU - Battaglin, WA AU - Goolsby, DA AD - U.S. Geological Survey, Box 25046, MS 406, Denver, Colorado 80225, USA, wbattagl@usgs.gov Y1 - 1999/09/01/ PY - 1999 DA - 1999 Sep 01 SP - 2917 EP - 2925 VL - 33 IS - 17 SN - 0013-936X, 0013-936X KW - USA, Midwest KW - acetochlor KW - alachlor KW - cyanazine KW - metolachlor KW - seasonal distribution KW - ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Pollution Abstracts KW - Rivers KW - Water Pollution KW - Historical account KW - Agricultural pollution KW - Herbicides KW - Agricultural Chemicals KW - Atrazine KW - Pesticides KW - Agricultural runoff KW - Runoff KW - Freshwater pollution KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17582468?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Are+Shifts+in+Herbicide+Use+Reflected+in+Concentration+Changes+in+Midwestern+Rivers%3F&rft.au=Battaglin%2C+WA%3BGoolsby%2C+DA&rft.aulast=Battaglin&rft.aufirst=WA&rft.date=1999-09-01&rft.volume=33&rft.issue=17&rft.spage=2917&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes9900149 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Rivers; Agricultural pollution; Herbicides; Agricultural runoff; Historical account; Pesticides; Atrazine; Freshwater pollution; Water Pollution; Agricultural Chemicals; Runoff DO - http://dx.doi.org/10.1021/es9900149 ER - TY - JOUR T1 - Use of power analysis to develop detectable significance criteria for sea urchin toxicity tests AN - 17474959; 4677356 AB - When sufficient data are available, the statistical power of a test can be determined using power analysis procedures. The term "detectable significance" has been coined to refer to this criterion based on power analysis and past performance of a test. This power analysis procedure has been performed with sea urchin (Arbacia punctulata) fertilization and embryological development data from sediment porewater toxicity tests. Data from 3100 and 2295 tests for the fertilization and embryological development tests, respectively, were used to calculate the criteria and regression equations describing the power curves. Using Dunnett's test, a minimum significant difference (MSD) ( beta = 0.05) of 15.5% and 19% for the fertilization test, and 16.4% and 20.6% for the embryological development test, for alpha less than or equal to 0.05 and alpha less than or equal to 0.01, respectively, were determined. The use of this second criterion reduces type I (false positive) errors and helps to establish a critical level of difference based on the past performance of the test. JF - Aquatic Ecosystem Health & Management AU - Carr, R S AU - Biedenbach, J M AD - USGS, Biological Resources Division, Marine Ecotoxicology Research Station, TAMU-CC, Center for Coastal Studies, NRC Suite 3200, 6300 Ocean Drive Corpus Christi, TX 78412, USA Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 413 EP - 418 PB - Elsevier Science Ltd., P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 2 IS - 4 SN - 1463-4988, 1463-4988 KW - Arbacia punctulata KW - Purple-spined sea urchin KW - bioassays KW - criterion selection KW - power analysis KW - sea urchins KW - Aqualine Abstracts; Oceanic Abstracts; Toxicology Abstracts; Water Resources Abstracts; Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Testing Procedures KW - Marine KW - Aquatic organisms KW - Aquatic Animals KW - Embryonic development KW - Aurelia KW - Pollution effects KW - Toxicity KW - Embryonic Growth Stage KW - Biological fertilization KW - Toxicity tests KW - Bioassay KW - Fertilization KW - Embryogenesis KW - Bioassays KW - Regression analysis KW - Embryos KW - Toxicity (see also Lethal limits) KW - Toxicity testing KW - O 4095:Instruments/Methods KW - AQ 00008:Effects of Pollution KW - Q5 08502:Methods and instruments KW - SW 3030:Effects of pollution KW - X 24221:Toxicity testing KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17474959?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquatic+Ecosystem+Health+%26+Management&rft.atitle=Use+of+power+analysis+to+develop+detectable+significance+criteria+for+sea+urchin+toxicity+tests&rft.au=Carr%2C+R+S%3BBiedenbach%2C+J+M&rft.aulast=Carr&rft.aufirst=R&rft.date=1999-09-01&rft.volume=2&rft.issue=4&rft.spage=413&rft.isbn=&rft.btitle=&rft.title=Aquatic+Ecosystem+Health+%26+Management&rft.issn=14634988&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Bioassays; Embryonic development; Pollution effects; Biological fertilization; Toxicity tests; Embryogenesis; Fertilization; Regression analysis; Toxicity testing; Embryos; Aquatic organisms; Aurelia; Toxicity (see also Lethal limits); Testing Procedures; Aquatic Animals; Toxicity; Embryonic Growth Stage; Bioassay; Marine ER - TY - JOUR T1 - Vateritic Sagitta in Wild and Stocked Lake Trout: Applicability to Stock Origin AN - 17468333; 4671779 AB - Argonite is the normal form of calcium carbonate found in teleost otoliths, but it is sometimes replaced by vaterite, an alternate crystalline structure. We investigated the assumption that sagittal otoliths with vaterite replacement were unique to stocked lake trout Salvelinus namaycush in the Laurentian Great Lakes. Earlier studies had attributed these abnormalities to stocking stress, and proposed that the presence of vaterite could separate individual unmarked stocked lake trout from their wild counterparts. We examined and described the frequency of vateritic sagittae in two wild and three stocked populations of lake trout from the Great Lakes and a wild population from a remote inland lake in northern Canada. Among lake trout caught 2-12 years after being stocked, prevalence of vateritic sagittae was 66% for Lake Superior fish, 75% for Lake Huron fish, and 86% for Lake Ontario fish. Among wild fish caught, vateritic sagittae were present in 37% of Lake Superior fish, 22% of Lake Huron fish, and 49% of northern Canada fish. We also compared year-to-year differences in prevalence in four year-classes of fingerling lake trout reared in two U.S. national lake trout hatcheries. Prior to release, between 53 and 84% of the hatchery fish had at least one vateritic sagitta, and prevalence increased with handling associated with hatchery practices. Vateritic sagittae in wild fish might also indicate stress in nature. The presence of vateritic sagittae in both wild and stocked fish compromises the use of this characteristic as an unequivocal indicator of a particular fish's origin. Among-population differences in both the prevalence and the extent of vaterite replacement, however, may provide a means of differentiating between stocks of sympatric unmarked wild and stocked lake trout. JF - Transactions of the American Fisheries Society AU - Bowen, CA II AU - Bronte, C R AU - Argyle, R L AU - Adams, J V AU - Johnson, JE AD - U.S. Geological Survey, Great Lakes Science Center, Ann Arbor, Michigan 48105, USA, charles_bronte@usgs.gov Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 929 EP - 938 VL - 128 IS - 5 SN - 0002-8487, 0002-8487 KW - Lake trout KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA Aquaculture Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Biological stress KW - Otoliths KW - Stocking (organisms) KW - North America, Great Lakes KW - Salvelinus namaycush KW - Age determination KW - Freshwater KW - Environmental factors KW - Q1 08424:Age and growth KW - Q3 08582:Fish culture KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17468333?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Vateritic+Sagitta+in+Wild+and+Stocked+Lake+Trout%3A+Applicability+to+Stock+Origin&rft.au=Bowen%2C+CA+II%3BBronte%2C+C+R%3BArgyle%2C+R+L%3BAdams%2C+J+V%3BJohnson%2C+JE&rft.aulast=Bowen&rft.aufirst=CA&rft.date=1999-09-01&rft.volume=128&rft.issue=5&rft.spage=929&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Biological stress; Stocking (organisms); Otoliths; Age determination; Environmental factors; Salvelinus namaycush; North America, Great Lakes; Freshwater ER - TY - JOUR T1 - Laboratory Evaluation of a Lake Trout Bioenergetics Model AN - 17468291; 4671767 AB - Lake trout Salvelinus namaycush, aged 3 and 6 years and with average weights of 700 and 2,000 g, were grown in laboratory tanks for up to 407 d under a thermal regime similar to that experienced by lake trout in nearshore Lake Michigan. Lake trout were fed alewife Alosa pseudoharengus and rainbow smelt Osmerus mordax, prey typical of lake trout in Lake Michigan. Of the 120 lake trout used in the experiment, 40 were fed a low ration (0.25% of their body weight per day), 40 were fed a medium ration (0.5% of their body weight per day), and 40 were fed a high ration (ad libitum). We measured consumption and growth, and we compared observed consumption with that predicted by the Wisconsin bioenergetics model. For lake trout fed the medium ration, model predictions for monthly consumption were unbiased. Moreover, predicted cumulative consumption by medium-ration lake trout for the entire experiment (320 d for smaller lake trout and 407 d for larger lake trout) agreed quite well with observed cumulative consumption; predictions were as close as within 0.1 to 5.2% of observed cumulative consumption. Even so, the model consistently overestimated consumption by low-ration fish and underestimated consumption by high-ration fish. The bias was significant in both cases, but was more severe for the low-ration trout. Because the low-ration and high-ration regimes were probably unrealistic for lake trout residing in Lake Michigan and because the model fit our laboratory data rather well for medium-ration trout, we conclude that applying the Wisconsin bioenergetics model to the Lake Michigan lake trout population in order to estimate the amount of prey fish consumed by lake trout each year is appropriate. JF - Transactions of the American Fisheries Society AU - Madenjian, C P AU - O'Connor, D V AD - U.S. Geological Survey, Biological Resources Division, Great Lakes Science Center, 1451 Green Road, Ann Arbor, Michigan 48105, USA, chuck_madenjian@usgs.gov Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 802 EP - 814 VL - 128 IS - 5 SN - 0002-8487, 0002-8487 KW - Lake trout KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Diets KW - Mathematical models KW - Bioenergetics KW - bioenergetics KW - Freshwater KW - Models KW - USA, Michigan L. KW - Lakes KW - Growth KW - Growth curves KW - Alosa pseudoharengus KW - Osmerus mordax KW - Feeding experiments KW - Salvelinus namaycush KW - Q1 08424:Age and growth KW - D 04003:Modeling, mathematics, computer applications KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17468291?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Laboratory+Evaluation+of+a+Lake+Trout+Bioenergetics+Model&rft.au=Madenjian%2C+C+P%3BO%27Connor%2C+D+V&rft.aulast=Madenjian&rft.aufirst=C&rft.date=1999-09-01&rft.volume=128&rft.issue=5&rft.spage=802&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Mathematical models; Growth curves; Bioenergetics; Feeding experiments; Diets; Growth; Lakes; bioenergetics; Models; Alosa pseudoharengus; Osmerus mordax; Salvelinus namaycush; USA, Michigan L.; Freshwater ER - TY - JOUR T1 - The Growth-Temperature Relation of Juvenile Lake Whitefish AN - 17466824; 4671782 AB - The lake whitefish Coregonus clupeaformis supports major commercial fisheries in Lakes Superior, Huron, and Michigan, where it is managed on a sustained-yield basis; it also supports a recreational hook-and-line fishery in some Great Lakes embayments and nearshore areas. To better understand habitat use by juvenile lake whitefish in the Great Lakes, we acclimated groups of test fish in the laboratory to 5, 10, 15, 18, 21, and 24 degree C and fed them to excess twice daily for 55 d. The test fish increased in length and weight at all of the test temperatures and at the end of the study were heaviest and longest at 18.1 degree C. A curve fitted to the specific growth rate data indicated that the optimum temperature for growth was 18.5 degree C and, thus, that the fundamental thermal niche for juvenile lake whitefish is 15.5-19.5 degree C. Our results support the limited, published information on thermal ecology of wild, free-ranging juvenile lake whitefish in the Great Lakes. JF - Transactions of the American Fisheries Society AU - Edsall, T A AD - U.S. Geological Survey, Biological Resources Division, Great Lakes Science Center, 1451 Green Road, Ann Arbor, Michigan 48105, USA, thomas_edsall@usgs.gov Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 962 EP - 964 VL - 128 IS - 5 SN - 0002-8487, 0002-8487 KW - Juveniles KW - Lake whitefish KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Temperature effects KW - Management KW - Ecological distribution KW - Water temperature KW - Freshwater KW - Habitat selection KW - Environmental factors KW - Growth KW - Growth curves KW - Coregonus clupeaformis KW - North America, Great Lakes KW - Habitat utilization KW - Temperature tolerance KW - Q1 08422:Environmental effects KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17466824?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=The+Growth-Temperature+Relation+of+Juvenile+Lake+Whitefish&rft.au=Edsall%2C+T+A&rft.aulast=Edsall&rft.aufirst=T&rft.date=1999-09-01&rft.volume=128&rft.issue=5&rft.spage=962&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Growth curves; Ecological distribution; Water temperature; Habitat selection; Environmental factors; Temperature tolerance; Temperature effects; Growth; Management; Habitat utilization; Coregonus clupeaformis; North America, Great Lakes; Freshwater ER - TY - JOUR T1 - Zebra mussel filter feeding and food-limited production of Daphnia: recent changes in lower trophic level dynamics of Oneida Lake, New York, U.S.A. AN - 17462759; 4668110 AB - Exotic zebra mussels can alter lower trophic level dynamics in lakes that they colonize by consuming large quantities of phytoplankton. We simulated the indirect effects of zebra mussel grazing on Daphnia by artificially reducing phytoplankton concentration for in situ Daphnia reproduction experiments. The response of Daphnia reproduction to reduced phytoplankton was evaluated for both the in situ experiments and field observations in Oneida Lake, New York, U.S.A. Oneida Lake has had an abundant population of zebra mussels since 1992. Our experiments revealed that fecundity of individuals from two species of Daphnia was positively related to phytoplankton concentration during the spring clearwater phase, although there was no discernible effect of food concentration on fecundity in summer cyanobacteria-dominated assemblages. The experimental results suggest that Daphnia fecundity responds to chlorophyll a concentrations < 2 g l super(-1). The years since zebra mussels became abundant in Oneida Lake have been characterized by high water clarity, low chlorophyll concentrations, long clearwater phases, and low Daphnia biomass compared with the previous 17 years. The food web effects of zebra mussel grazing are complex and it will take more years for impacts at higher trophic levels to develop and be identified. JF - Hydrobiologia AU - Horgan, MJ AU - Mills, EL AD - United States Geological Survey, Biological Resources Division, Conte Anadromous Fish Research Center, P.O. Box 796, Turners Falls, MA 01376, USA Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 79 EP - 88 PB - Kluwer Academic Publishers VL - 411 SN - 0018-8158, 0018-8158 KW - USA, New York KW - USA, New York, Oneida L. KW - Zebra mussel KW - Water Resources Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts KW - Phytoplankton KW - Food availability KW - Freshwater KW - Population dynamics KW - Lakes KW - Freshwater crustaceans KW - Competition KW - Dreissena polymorpha KW - Algae KW - Grazing KW - Filter feeders KW - Zooplankton KW - Zebra Mussels KW - Daphnia KW - Trophic Level KW - Foods KW - Freshwater molluscs KW - Fecundity KW - Water transparency KW - Limiting Factors KW - Introduced species KW - Productivity KW - Competing Use KW - Q1 08483:Species interactions: general KW - Q1 08461:Plankton KW - D 04310:Freshwater KW - Q1 08281:General KW - SW 0850:Lakes KW - Q5 08521:Mechanical and natural changes KW - Q1 08261:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17462759?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrobiologia&rft.atitle=Zebra+mussel+filter+feeding+and+food-limited+production+of+Daphnia%3A+recent+changes+in+lower+trophic+level+dynamics+of+Oneida+Lake%2C+New+York%2C+U.S.A.&rft.au=Horgan%2C+MJ%3BMills%2C+EL&rft.aulast=Horgan&rft.aufirst=MJ&rft.date=1999-09-01&rft.volume=411&rft.issue=&rft.spage=79&rft.isbn=&rft.btitle=&rft.title=Hydrobiologia&rft.issn=00188158&rft_id=info:doi/10.1023%2FA%3A1003877013112 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Freshwater molluscs; Lakes; Fecundity; Water transparency; Zooplankton; Freshwater crustaceans; Filter feeders; Phytoplankton; Food availability; Introduced species; Population dynamics; Competition; Productivity; Trophic Level; Foods; Grazing; Limiting Factors; Daphnia; Zebra Mussels; Competing Use; Dreissena polymorpha; Algae; Freshwater DO - http://dx.doi.org/10.1023/A:1003877013112 ER - TY - JOUR T1 - Development and Corroboration of a Bioenergetics Model for Northern Pikeminnow Feeding on Juvenile Salmonids in the Columbia River AN - 17462174; 4671766 AB - A bioenergetics model was developed and corroborated for northern pikeminnow Ptychocheilus oregonensis, an important predator on juvenile salmonids in the Pacific Northwest. Predictions of modeled predation rate on salmonids were compared with field data from three areas of John Day Reservoir (Columbia River). To make bioenergetics model estimates of predation rate, three methods were used to approximate the change in mass of average predators during 30-d growth periods: observed change in mass between the first and the second month, predicted change in mass calculated with seasonal growth rates, and predicted change in mass based on an annual growth model. For all reservoir areas combined, bioenergetics model predictions of predation on salmon were 19% lower than field estimates based on observed masses, 45% lower than estimates based on seasonal growth rates, and 15% lower than estimates based on the annual growth model. For each growth approach, the largest differences in field-versus-model predation occurred at the midreservoir area (-84% to -67% difference). Model predictions of the rate of predation on salmonids were examined for sensitivity to parameter variation, swimming speed, sampling bias caused by gear selectivity, and asymmetric size distributions of predators. The specific daily growth rate of northern pikeminnow predicted by the model was highest in July and October and decreased during August. The bioenergetics model for northern pikeminnow performed well compared with models for other fish species that have been tested with field data. This model should be a useful tool for evaluating management actions such as predator removal, examining the influence of temperature on predation rates, and exploring interactions between predators in the Columbia River basin. JF - Transactions of the American Fisheries Society AU - Petersen, J H AU - Ward, D L AD - U.S. Geological Survey, Biological Resources Division, Columbia River Research Laboratory, Cook, Washington 98605, USA, jim_petersen@usgs.gov Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 784 EP - 801 VL - 128 IS - 5 SN - 0002-8487, 0002-8487 KW - Northern squawfish KW - Salmonids KW - USA KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Feeding KW - Mathematical models KW - Ptychocheilus oregonensis KW - Predation KW - Prey selection KW - bioenergetics KW - Freshwater KW - Population dynamics KW - Models KW - USA, Northwest KW - Feeding behaviour KW - Salmonidae KW - D 04003:Modeling, mathematics, computer applications KW - D 04668:Fish KW - Q1 08442:Population dynamics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17462174?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Development+and+Corroboration+of+a+Bioenergetics+Model+for+Northern+Pikeminnow+Feeding+on+Juvenile+Salmonids+in+the+Columbia+River&rft.au=Petersen%2C+J+H%3BWard%2C+D+L&rft.aulast=Petersen&rft.aufirst=J&rft.date=1999-09-01&rft.volume=128&rft.issue=5&rft.spage=784&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Mathematical models; Feeding behaviour; Prey selection; Population dynamics; Feeding; Predation; bioenergetics; Models; Ptychocheilus oregonensis; Salmonidae; USA, Northwest; Freshwater ER - TY - JOUR T1 - Survival and longevity of the Puerto Rican vireo AN - 17456171; 4662082 AB - The Puerto Rican Vireo (Vireo latimeri), a Puerto Rican endemic, is declining in at least one forest reserve as the result of pressures from introduced nest predators and an introduced brood parasite. We collected data on adult survival, adult longevity, and juvenile survival from a long-term mist netting study (1973-1999) and a demographic study of color-marked birds (1990-1993) in Guanica Forest, Puerto Rico. Of the adult birds banded in the first three years of the demographic study, 24 of 32 males (75%) and 6 of 7 females (86%) were known to survive until June of the year following their banding. Model-based estimates of adult survival rate from capture/resighting of 65 color-marked birds was 0.74 ( plus or minus 0.05 SE); for 51 adult males analyzed separately, survival rate was 0.74 ( plus or minus 0.06; data were insufficient to estimate survival rate of females). We recorded a new longevity record for the Puerto Rican Vireo of 13 years, 2 months. Juvenile survival was estimated by enumeration to be 0.40 ( plus or minus 0.15). Juveniles spent prolonged periods on their natal territory, which might increase their probability of surviving to first breeding. Puerto Rican Vireos have relatively high survival rates despite the presence of numerous introduced predators in their habitat, a highly seasonal environment, and the stress of renesting as many as 6 times in a season. JF - Wilson Bulletin AU - Woodworth, B L AU - Faaborg, J AU - Arendt, W J AD - Pacific Island Ecosystems Research Center, Biological Resources Division, U.S.G.S., Kilauea Field Station, P.O. Box 44, Hawaii National Park, HI 96718, USA, Bethany_Woodworth@usgs.gov Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 376 EP - 380 VL - 111 IS - 3 SN - 0043-5643, 0043-5643 KW - Puerto rican vireo KW - Puerto Rico KW - Ecology Abstracts KW - Vireo latimeri KW - Survival KW - Longevity KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17456171?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wilson+Bulletin&rft.atitle=Survival+and+longevity+of+the+Puerto+Rican+vireo&rft.au=Woodworth%2C+B+L%3BFaaborg%2C+J%3BArendt%2C+W+J&rft.aulast=Woodworth&rft.aufirst=B&rft.date=1999-09-01&rft.volume=111&rft.issue=3&rft.spage=376&rft.isbn=&rft.btitle=&rft.title=Wilson+Bulletin&rft.issn=00435643&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Vireo latimeri; Survival; Longevity ER - TY - JOUR T1 - Do mammalian nest predators follow human scent trails in the shortgrass prairie? AN - 17446660; 4662086 AB - Nest predation, the major cause of nest failure in passerines, has exerted a strong influence on the evolution of life history traits of birds. Because human disturbance during nest monitoring may alter predation rates, we investigated whether human scent affected the survival of artificial ground nests in shortgrass prairie. Our experiment consisted of two treatments, one in which there was no attempt to mask human scent along travel routes between artificial nests, and one in which we masked human scent with cow manure, a scent familiar to mammalian predators in the study area. We found no evidence that human scent influenced predation rates, nor that mammalian predators followed human trails between nests. We conclude that scent trails made by investigators do not result in lower nesting success of passerines of the shortgrass prairie where vegetation trampling is minimal, mammalian predators predominate, and avian predators are rare. JF - Wilson Bulletin AU - Skagen, S K AU - Stanley, T R AU - Dillon, M B AD - U.S. Geological Survey, Biological Resources Division, Midcontinent Ecological Science Center, Fort Collins, CO 80525-3400, USA, susan_skagen@usgs.gov Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 415 EP - 420 VL - 111 IS - 3 SN - 0043-5643, 0043-5643 KW - Birds KW - Mammals KW - Animal Behavior Abstracts; Ecology Abstracts KW - Mammalia KW - Predators KW - Nests KW - Human impact KW - Aves KW - Grasslands KW - Olfactory stimuli KW - Breeding success KW - Y 25497:Mammals (excluding primates) KW - D 04671:Birds KW - D 04672:Mammals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17446660?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Wilson+Bulletin&rft.atitle=Do+mammalian+nest+predators+follow+human+scent+trails+in+the+shortgrass+prairie%3F&rft.au=Skagen%2C+S+K%3BStanley%2C+T+R%3BDillon%2C+M+B&rft.aulast=Skagen&rft.aufirst=S&rft.date=1999-09-01&rft.volume=111&rft.issue=3&rft.spage=415&rft.isbn=&rft.btitle=&rft.title=Wilson+Bulletin&rft.issn=00435643&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; Mammalia; Breeding success; Nests; Human impact; Predators; Olfactory stimuli; Grasslands ER - TY - JOUR T1 - Behavioral responses to disturbance in freshwater mussels with implications for conservation and management AN - 17434552; 4653714 AB - Knowledge about the ability of freshwater unionid mussels to recover from physical disturbance is important to their conservation and management. Threatened species may be disturbed by relocation to refugia as a conservation measure, and some species are disturbed by size- and species-selective harvesting of shells for use in the production of cultured pearls. The activity of freshwater unionid mussels generally decreases with water temperature, but intra- and interspecific differences in the frequency and distribution of recovery behaviors following disturbances at specific water temperatures have not been previously quantified. We observed righting, moving, and burrowing behavior of 4 mussel species, Amblema plicata plicata, Potamilus alatus, Fusconaia flava, and Lampsilis cardium, at 3 water temperatures (7, 14, and 21 degree C). The temporal frequency (intensity) and times-to-1st-event of behaviors were analyzed using proportional hazards models. Righting events and consecutive movements occurred at different intensities among temperatures and species. For righting, intensity increased by 8%/ degree C within the range of 7-21 degree C. JF - Journal of the North American Benthological Society AU - Waller, D L AU - Gutreuter, S AU - Rach, J J AD - US Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI 54603-1223, USA, steve_gutreuter@usgs.gov Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 381 EP - 390 VL - 18 IS - 3 SN - 0887-3593, 0887-3593 KW - Pink heelsplitter KW - Plain pocketbook KW - Wabash pigtoe KW - Animal Behavior Abstracts; Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Temperature effects KW - Amblema plicata KW - Unionidae KW - Rare species KW - Freshwater KW - Fusconaia flava KW - Behavioural responses KW - Ecosystem disturbance KW - Potamilus alatus KW - Burrowing organisms KW - Lampsilis cardium KW - ecosystem disturbance KW - Conservation KW - Burrowing behavior KW - Y 25954:General KW - Q1 08422:Environmental effects KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17434552?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+North+American+Benthological+Society&rft.atitle=Behavioral+responses+to+disturbance+in+freshwater+mussels+with+implications+for+conservation+and+management&rft.au=Waller%2C+D+L%3BGutreuter%2C+S%3BRach%2C+J+J&rft.aulast=Waller&rft.aufirst=D&rft.date=1999-09-01&rft.volume=18&rft.issue=3&rft.spage=381&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+North+American+Benthological+Society&rft.issn=08873593&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Burrowing organisms; Temperature effects; Rare species; Behavioural responses; Ecosystem disturbance; ecosystem disturbance; Conservation; Burrowing behavior; Amblema plicata; Unionidae; Lampsilis cardium; Fusconaia flava; Potamilus alatus; Freshwater ER - TY - JOUR T1 - Mast Flowering and Semelparity in Bamboos: The Bamboo Fire Cycle Hypothesis AN - 17411848; 4637437 AB - Mast flowering is the phenomenon of massive flowering and fruiting at intermittent intervals that is synchronized within a species across large areas. Most masting species are iteroparous, flowering and fruiting multiple times during their life span. Bamboos are an exception as mast flowering is largely restricted to semelparous species that flower once and die. Additionally, whereas most mast-flowering species produce seed crops on a cycle of 3-7 yr, bamboos have intermast intervals that are typically an order of magnitude longer. We contend there are features of the bamboo life cycle that weaken the case for predator satiation as an important selective force, in particular the very long intermast periodicity and monocarpic reproduction. Here we present a new hypothesis that accounts for masting, semelparity, and delayed reproduction in bamboos and provides a mechanistic model to explain variation in intermast periodicity. JF - American Naturalist AU - Keeley, JE AU - Bond, W J AD - United States Geological Survey, Biological Resources Division, Western Ecological Research Center, Sequoia-Kings Canyon Field Station, Three Rivers, California 93271-9651, jon_keeley@usgs.gov Y1 - 1999/09// PY - 1999 DA - Sep 1999 VL - 154 IS - 3 SN - 0003-0147, 0003-0147 KW - bamboos KW - mast flowering KW - Grasses KW - Ecology Abstracts KW - Flowering KW - Fruiting KW - Poaceae KW - Life cycle KW - Semelparity KW - D 04636:Grasses UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17411848?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Naturalist&rft.atitle=Mast+Flowering+and+Semelparity+in+Bamboos%3A+The+Bamboo+Fire+Cycle+Hypothesis&rft.au=Keeley%2C+JE%3BBond%2C+W+J&rft.aulast=Keeley&rft.aufirst=JE&rft.date=1999-09-01&rft.volume=154&rft.issue=3&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Naturalist&rft.issn=00030147&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Poaceae; Flowering; Fruiting; Semelparity; Life cycle ER - TY - CONF T1 - The effect of frozen soil on snowmelt runoff at Sleepers River, Vermont AN - 17411351; 4638252 AB - Soil frost depth has been monitored at the Sleepers River Research Watershed in northeastern Vermont since 1984. Soil frost develops every winter, particularly in open fields, but its depth varies greatly from year to year in inverse relation to snow depth. During the 15 years of record at a benchmark mid-elevation open site, the annual maximum frost depth varied from 70 to 390 mm. We empirically tested the hypothesis that frozen soil prevents infiltration and recharge, thereby causing an increased runoff ratio (streamflow/(rain + snowmelt)) during the snowmelt hydrograph rise and a decreased runoff ratio during snowmelt recession. The hypothesis was not supported at the 111 km super(2) W-5 catchment; there was no significant correlation of the runoff ratio with the seasonal maximum frost depth for either the pre-peak or post-peak period. In an analysis of four events, however, the presence of frost promoted a large and somewhat quicker response to rainfall relative to the no-frost condition, although snow cover caused a much greater time-to-peak regardless of frost status. For six years of flow and frost depth measured at the 59 ha agricultural basin W-2, the hypothesis appeared to be supported. The enhancement of runoff due to soil frost is evident on small plots and in extreme events, such as rain on frozen snow-free soil. In the northeastern USA and eastern Canada, the effect is often masked in larger catchments by several confounding factors, including storage of meltwater in the snowpack, variability in snowmelt timing due to elevational and aspect differences, interspersed forested land where frost may be absent, and the timing of soil thawing relative to the runoff peak. JF - Hydrological Processes AU - Shanley, J B AU - Chalmers, A Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 1843 EP - 1857 PB - John Wiley & Sons, Ltd., Baffins Lane Chichester W. Sussex PO19 1UD UK VL - 13 IS - 12-13 KW - frozen soils KW - USA, Vermont KW - Aqualine Abstracts; Water Resources Abstracts KW - Melt waters KW - Catchment Areas KW - Frost KW - Snow Depth KW - Thawing KW - Catchment areas KW - Infiltration KW - Snowmelt KW - Hydrographs KW - Runoff KW - AQ 00001:Water Resources and Supplies KW - SW 0835:Streamflow and runoff UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17411351?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrological+Processes&rft.atitle=The+effect+of+frozen+soil+on+snowmelt+runoff+at+Sleepers+River%2C+Vermont&rft.au=Shanley%2C+J+B%3BChalmers%2C+A&rft.aulast=Shanley&rft.aufirst=J&rft.date=1999-09-01&rft.volume=13&rft.issue=12-13&rft.spage=1843&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=08856087&rft_id=info:doi/10.1002%2F%28SICI%291099-1085%28199909%2913%3A12%2F133.3.CO%3B2-+7 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1002/(SICI)1099-1085(199909)13:12/13<1843::AID-HYP879>3.3.CO;2- ER - TY - JOUR T1 - Methods for developing time-series climate surfaces to drive topographically distributed energy- and water-balance models AN - 17409890; 4638262 AB - Topographically distributed energy- and water-balance models can accurately simulate both the development and melting of a seasonal snowcover in the mountain basins. To do this they require time-series climate surfaces of air temperature, humidity, wind speed, precipitation, and solar and thermal radiation. If data are available, these parameters can be adequately estimated at time steps of one to three hours. Unfortunately, climate monitoring in mountain basins is very limited, and the full range of elevations and exposures that affect climate conditions, snow deposition, and melt is seldom sampled. Detailed time-series climate surfaces have been successfully developed using limited data and relatively simple methods. We present a synopsis of the tools and methods used to combine limited data with simple corrections for the topographic controls to generate high temporal resolution time-series images of these climate parameters. Methods used include simulations, elevational gradients, and detrended kriging. The generated climate surfaces are evaluated at points and spatially to determine if they are reasonable approximations of actual conditions. Recommendations are made for the addition of critical parameters and measurement sites into routine monitoring systems in mountain basins. JF - Hydrological Processes AU - Susong, D AU - Marks, D AU - Garen, D AD - U.S. Geological Survey, 1745 W. 17005, Salt Lake City, UT 84104, USA, ddsusong@usgs.gov Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 2003 EP - 2021 PB - John Wiley & Sons, Ltd., Baffins Lane Chichester W. Sussex PO19 1UD UK VL - 13 IS - 12-13 SN - 0885-6087, 0885-6087 KW - Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Precipitation (Atmospheric) KW - Hydrologic Budget KW - Time series analysis KW - Mountains KW - Time Series Analysis KW - Energy (see also Power) KW - Catchment areas KW - Hydrology KW - Climatology KW - Topography KW - Atmospheric precipitations KW - Mathematical models KW - Air Temperature KW - Catchment Areas KW - Humidity KW - Precipitation KW - Water balance KW - Energy KW - Elevation KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General KW - Q2 09244:Air-sea coupling UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17409890?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrological+Processes&rft.atitle=Methods+for+developing+time-series+climate+surfaces+to+drive+topographically+distributed+energy-+and+water-balance+models&rft.au=Susong%2C+D%3BMarks%2C+D%3BGaren%2C+D&rft.aulast=Susong&rft.aufirst=D&rft.date=1999-09-01&rft.volume=13&rft.issue=12-13&rft.spage=2003&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=08856087&rft_id=info:doi/10.1002%2F%28SICI%291099-1085%28199909%2913%3A12%2F133.0.CO%3B2-+K LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Atmospheric precipitations; Water balance; Mathematical models; Hydrology; Climatology; Time series analysis; Mountains; Energy (see also Power); Precipitation (Atmospheric); Catchment areas; Humidity; Topography; Time Series Analysis; Air Temperature; Energy; Elevation; Catchment Areas; Hydrologic Budget; Precipitation DO - http://dx.doi.org/10.1002/(SICI)1099-1085(199909)13:12/13<2003::AID-HYP884>3.0.CO;2- ER - TY - JOUR T1 - Gravel sediment routing from widespread, low intensity landscape disturbance, Current River basin, Missouri AN - 17406776; 4620744 AB - During the last 160 years, land-use changes in the Ozarks have had the potential to cause widespread, low-intensity delivery of excess amounts of gravel-sized sediment to stream channels. Previous studies have indicated that this excess gravel bedload is moving in wave-like forms through Ozarks drainage basins. The longitudinal, areal distribution of gravel bars along 160 km of the Current River, Missouri, was evaluated to determine the relative effects of valley-scale controls, tributary basin characteristics, and lagged sediment transport in creating areas of gravel accumulations. The longitudinal distribution of gravel-bar area shows a broad scale wave-like form with increases in gravel-bar area weakly associated with tributary junctions. Secondary peaks of gravel area with 1.8-4.1 km spacing (disturbance reaches) are superimposed on the broad form. Variations in valley width explain some, but not all, of the short-spacing variation in gravel-bar area. Among variables describing tributary drainage basin morphometry, present-day land use and geologic characteristics, only drainage area and road density relate even weakly to gravel-bar areal inventories. A simple, channel network-based sediment routing model shows that many of the features of the observed longitudinal gravel distribution can be replicated by uniform transport of sediment from widespread disturbances through a channel network. These results indicate that lagged sediment transport may have a dominant effect on the synoptic spatial distribution of gravel in Ozarks streams; present-day land uses are only weakly associated with present-day gravel inventories; and valley-scale characteristics have secondary controls on gravel accumulations in disturbance reaches. JF - Earth Surface Processes and Landforms AU - Jacobson, R B AU - Gran, K B AD - USGS, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, Missouri 65201, USA Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 897 EP - 917 VL - 24 IS - 10 SN - 0197-9337, 0197-9337 KW - USA, Missouri, Current R. KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Land Use KW - Rivers KW - Catchment area KW - Gravel KW - Fluvial Sediments KW - Catchment Areas KW - Streams KW - Sediments KW - Land use KW - Sedimentation KW - Q2 09264:Sediments and sedimentation KW - SW 0870:Erosion and sedimentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17406776?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+Surface+Processes+and+Landforms&rft.atitle=Gravel+sediment+routing+from+widespread%2C+low+intensity+landscape+disturbance%2C+Current+River+basin%2C+Missouri&rft.au=Jacobson%2C+R+B%3BGran%2C+K+B&rft.aulast=Jacobson&rft.aufirst=R&rft.date=1999-09-01&rft.volume=24&rft.issue=10&rft.spage=897&rft.isbn=&rft.btitle=&rft.title=Earth+Surface+Processes+and+Landforms&rft.issn=01979337&rft_id=info:doi/10.1002%2F%28SICI%291096-9837%28199909%2924%3A103.3.CO%3B2-Y LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Catchment area; Rivers; Gravel; Sedimentation; Land use; Sediments; Land Use; Fluvial Sediments; Catchment Areas; Streams DO - http://dx.doi.org/10.1002/(SICI)1096-9837(199909)24:10<897::AID-ESP18>3.3.CO;2-Y ER - TY - JOUR T1 - Microsatellite diversity in sympatric reproductive ecotypes of Pacific steelhead (Oncorhynchus mykiss) from the Middle Fork Eel River, California AN - 17390526; 4620052 AB - Genetic differentiation between two reproductive ecotypes of anadromous steelhead found in the Middle Fork Eel River in northern California was tested using 16 microsatellite loci. Twelve of these loci showed significant differences in allelic frequency between the two Middle Fork Eel River steelhead populations (Fisher's exact P<0.05). Fisher's combined test for independence also supported significant genetic separation between the two reproductive ecotype (P<0.001). Analysis of molecular variance indicated that only 1% of the overall microsatellite allelic variation contributed to differences between summer- and winter-run steelhead in the Middle Fork Eel River. Variation found among individuals within the two runs equaled 18.2%. Analyses showed less genetic distance between the two populations of steelhead in the Middle Fork Eel River than in comparisons made with geographically proximate coastal winter-run fish. Divergence time based on genetic distance for the two within-basin reproductive ecotypes was estimated to be 16,000-28,000 years ago.Original Abstract: Estudiamos, empleando 16 loci microsatelites, la diferenciacion genetica de dos ecotipos reproductivos de Oncorhynchus mykiss del Rio Middle Fork Eel (California). Doce de los loci estudiados presentaron diferencias significativas en la frecuencia alelica (Test exacto de Fisher: P<0.05). La F sub(st) para los 16 loci de ambas poblaciones combinadas fue 0.01 y la heterocigosidad media fue 0.76. El test combinado de Fisher para los 16 loci mostro diferencias significativas (P<0.001) entre los ecotipos de verano e invierno en el rio. La distancia genetica basada en la estructura alelica entre los ecotipos de verano e invierno en el rio, fue ( delta mu ) super(2)=2.74 (Nei's D=0.035), mientras que la distancia genetica equivalente calculada para los dos ecotipos del rio y para los precedentes de la costa de Mendocino (California) fue ( delta mu ) super(2)=0 5.16 (D de Nei 0.378). El analisis de la varianza molecular (AMOVA) indico que solo el 1% de la varianza alelica total contribuyo a las diferencias entre las dos ecotipos. La variacion entre individuos del mismo ecotipo fue del 18.2%. El numero de migrantes por generacion para los dos ecotipos del rio vario entre 5.15 (metodo del alelo privado) y 16.3 individuos por generacion (Metoso F sub(st)). El periodo de divergencia entre ambos ecotipos del rio basado en correlaciones publicadas entre la diversidad de alelos microsatelite y el tiempo, es de 16,000-28,000 anos. Ello indica la existencia de divergencia entre los dos ecotipos reproductores, simpatricos en la cuenca del rio costero, a pesar de que estas publaciones estan mas relacionadas entre si que con otras poblaciones anadromas geograficamente proximas, a lo largo de la costa californiana. JF - Ecology of Freshwater Fish AU - Nielsen, J L AU - Fountain, M C AD - USGS/BRD, Alaska Biological Science Center, 1011 E. Tudor Road, Anchorage, AK 99503-6199, USA Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 159 EP - 168 VL - 8 IS - 3 SN - 0906-6691, 0906-6691 KW - California KW - Rainbow trout KW - USA, California KW - microsatellite diversity KW - Genetics Abstracts; Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Rivers KW - Spawning seasons KW - Genomes KW - USA, California, Eel R. KW - Geographical distribution KW - Subpopulations KW - Sympatric populations KW - Microsatellites KW - Sexual isolation KW - Oncorhynchus mykiss KW - Reproductive strategy KW - Population genetics KW - Ecotypes KW - DNA KW - Reproduction KW - Gene frequency KW - Anadromous migrations KW - Genetic distance KW - Evolution KW - Q1 08345:Genetics and evolution KW - Q1 08443:Population genetics KW - G 07270:Ecological genetics KW - G 07371:Fish KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17390526?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecology+of+Freshwater+Fish&rft.atitle=Microsatellite+diversity+in+sympatric+reproductive+ecotypes+of+Pacific+steelhead+%28Oncorhynchus+mykiss%29+from+the+Middle+Fork+Eel+River%2C+California&rft.au=Nielsen%2C+J+L%3BFountain%2C+M+C&rft.aulast=Nielsen&rft.aufirst=J&rft.date=1999-09-01&rft.volume=8&rft.issue=3&rft.spage=159&rft.isbn=&rft.btitle=&rft.title=Ecology+of+Freshwater+Fish&rft.issn=09066691&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Genomes; Spawning seasons; Population genetics; Ecotypes; Sympatric populations; Subpopulations; DNA; Sexual isolation; Anadromous migrations; Rivers; Geographical distribution; Microsatellites; Gene frequency; Reproduction; Genetic distance; Evolution; Reproductive strategy; Oncorhynchus mykiss; USA, California, Eel R. ER - TY - JOUR T1 - Integrating Physical and Chemical Characteristics of Lakes into the Glacially Influenced Landscape of the Northern Cascade Mountains, Washington State, USA AN - 17306381; 4568698 AB - A basic knowledge of the physical and chemical characteristics of lakes is needed by management to make informed decisions to protect water resources. In this study we investigated some of the physical and chemical characteristics of 58 lakes in alpine, subalpine, and forest vegetation zones in a natural area (North Cascades National Park Service Complex) between 1989 and 1993. The objectives of the study were to: (1) document the time of ice-out relative to lake elevation; (2) determine how a sharp climate gradient west and east of the hydrologic divide affected the time of ice-out for subalpine lakes; and (3) assess how lake water quality was associated with lake elevation, lake depth, and basin geology. As expected, lake ice-out times occurred earlier with decreasing elevation. East-slope subalpine lakes iced-out earlier than did west-slope subalpine lakes because the east slope of the study area was drier and warmer than the west slope. On average, the lakes were relatively cold, neutral in pH, and low in dissolved substances and concentrations of nitrogen and phosphorus. Although some shallow lakes (depth 10 m) exhibited the highest alkalinities, conductivities, and concentrations of phosphorus and nitrogen, most shallow lakes exhibited low values for these variables that were comparable to values observed in deep lakes. Geology did not play a major role in segregating the lakes based on water quality. Overall, lake temperature, pH, alkalinity, conductivity, and concentrations of total phosphorus and total Kjeldahl N increased with decreasing elevation. These changes in water quality with decreasing elevation in this temperate mountainous region corresponded with warmer air temperatures and increased vegetation biomass, soil depth and maturity, and dissolved substances and nutrients. JF - Environmental Management AU - Larson, G L AU - Lomnicky, G AU - Hoffman, R AU - Liss, W J AU - Deimling, E AD - USGS Forest and Rangeland Ecosystem Science Center, 3200 S. W. Jefferson Way, Corvallis, Oregon 97331, USA Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 0219 EP - 0228 PB - Springer-Verlag VL - 24 IS - 2 SN - 0364-152X, 0364-152X KW - USA, Washington KW - USA, Washington, Cascades Mts. KW - USA, Washington, Northern Cascade Mts. KW - Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources; Pollution Abstracts; Ecology Abstracts KW - Resource management KW - glaciation KW - Limnology KW - Water resources KW - Freshwater KW - Water quality KW - Mountains KW - Lakes KW - Geomorphology KW - Hydrology KW - Ice KW - Freshwater environments KW - Glaciation KW - Sub-alpine environments KW - Nutrient concentrations KW - Physicochemical properties KW - Temperature KW - P 9000:ENVIRONMENTAL ACTION KW - D 04310:Freshwater KW - SW 0850:Lakes KW - Q2 09171:Dynamics of lakes and rivers KW - Q5 08522:Protective measures and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17306381?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Management&rft.atitle=Integrating+Physical+and+Chemical+Characteristics+of+Lakes+into+the+Glacially+Influenced+Landscape+of+the+Northern+Cascade+Mountains%2C+Washington+State%2C+USA&rft.au=Larson%2C+G+L%3BLomnicky%2C+G%3BHoffman%2C+R%3BLiss%2C+W+J%3BDeimling%2C+E&rft.aulast=Larson&rft.aufirst=G&rft.date=1999-09-01&rft.volume=24&rft.issue=2&rft.spage=0219&rft.isbn=&rft.btitle=&rft.title=Environmental+Management&rft.issn=0364152X&rft_id=info:doi/10.1007%2Fs002679900228 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Mountains; Ice; Resource management; Lakes; Geomorphology; Physicochemical properties; Glaciation; Temperature; Water resources; Limnology; Hydrology; Water quality; glaciation; Freshwater environments; Sub-alpine environments; Nutrient concentrations; USA, Washington, Cascades Mts.; Freshwater DO - http://dx.doi.org/10.1007/s002679900228 ER - TY - JOUR T1 - Localized Sulfate-Reducing Zones in a Coastal Plain Aquifer AN - 17585633; 4584155 AB - High concentrations of dissolved iron in ground water of coastal plain or alluvial aquifers contribute to the biofouling of public supply wells for which treatment and remediation is costly. Many of these aquifers, however, contain zones in which microbial sulfate reduction and the associated precipitation of iron-sulfide minerals decreases iron mobility. The principal water-bearing aquifer (Magothy Aquifer of Cretaceous age) in Suffolk County, New York, contains localized sulfate-reducing zones in and near lignite deposits, which generally are associated with clay lenses. Microbial analyses of core samples amended with [ super(14)C]-acetate indicate that microbial sulfate reduction is the predominant terminal-electron-accepting process (TEAP) in poorly permeable, lignite-rich sediments at shallow depths and near the ground water divide. The sulfate-reducing zones are characterized by abundant lignite and iron-sulfide minerals, low concentrations of Fe(III) oxyhydroxides, and by proximity to clay lenses that contain pore water with relatively high concentrations of sulfate and dissolved organic carbon. The low permeability of these zones and, hence, the long residence time of ground water within them, permit the preservation and (or) allow the formation of iron-sulfide minerals, including pyrite and marcasite. Both sulfate-reducing bacteria (SRB) and iron-reducing bacteria (IRB) are present beneath and beyond the shallow sulfate-reducing zones. A unique Fe(III)-reducing organism, MD-612, was found in core sediments from a depth of 187 m near the southern shore of Long Island. The distribution of poorly permeable, lignite-rich, sulfate-reducing zones with decreased iron concentration is varied within the principal aquifer and accounts for the observed distribution of dissolved sulfate, iron, and iron sulfides in the aquifer. Locating such zones for the placement of production wells would be difficult, however, because these zones are of limited aerial extent. JF - Ground Water AU - Brown, C J AU - Coates, J D AU - Schoonen, MAA AD - U.S. Geological Survey, 2045 Route 112, Coram, NY 11727, USA, cjbrown@usgs.gov Y1 - 1999/08// PY - 1999 DA - Aug 1999 SP - 505 EP - 516 VL - 37 IS - 4 SN - 0017-467X, 0017-467X KW - Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Aquifers KW - Sulfates KW - Organic carbon KW - Sediment KW - Sulphates KW - Iron Compounds KW - Chemical Reduction KW - Iron compounds KW - Organic Carbon KW - Geochemistry KW - Sediments KW - Reduction (Chemical) KW - Groundwater (see also Aquifers) KW - Organic compounds KW - Groundwater KW - Alluvial Aquifers KW - Iron KW - AQ 00001:Water Resources and Supplies KW - SW 0880:Chemical processes KW - P 2000:FRESHWATER POLLUTION KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17585633?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Localized+Sulfate-Reducing+Zones+in+a+Coastal+Plain+Aquifer&rft.au=Brown%2C+C+J%3BCoates%2C+J+D%3BSchoonen%2C+MAA&rft.aulast=Brown&rft.aufirst=C&rft.date=1999-08-01&rft.volume=37&rft.issue=4&rft.spage=505&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Chemical Reduction; Alluvial Aquifers; Sulfates; Sediments; Iron Compounds; Organic Carbon; Groundwater; Geochemistry; Reduction (Chemical); Aquifers; Sulphates; Sediment; Iron compounds; Organic carbon; Groundwater (see also Aquifers); Iron; Organic compounds ER - TY - JOUR T1 - Oxidation and Mobilization of Selenium by Nitrate in Irrigation Drainage AN - 17583321; 4678659 AB - Selenium (Se) can be oxidized by nitrate (NO sub(3) super(-)) from irrigation on Cretaceous marine shale in western Colorado. Dissolved Se concentrations are positively correlated with dissolved NO sub(3) super(-) concentrations in surface water and ground water samples from irrigated areas. Redox conditions dominate in the mobilization of Se in marine shale hydrogeologic settings; dissolved Se concentrations increase with increasing platinum-electrode potentials. Theoretical calculations for the oxidation of Se by NO sub(3) super(-) and oxygen show favorable Gibbs free energies for the oxidation of Se by NO sub(3) super(-), indicating NO sub(3) super(-) can act as an electron acceptor for the oxidation of Se. Laboratory batch experiments were performed by adding Mancos Shale samples to zero-dissolved-oxygen water containing 0, 5, 50, and 100 mg/L NO sub(3) super(-) as N (mg N/L). Samples were incubated in airtight bottles at 25 degree C for 188 d; samples collected from the batch experiment bottles show increased Se concentrations over time with increased NO sub(3) super(-) concentrations. Pseudo first-order rate constants for NO sub(3) super(-) oxidation of Se ranged from 0.0007 to 0.0048/d for 0 to 100 mg N/L NO sub(3) super(-) concentrations, respectively. Management of N fertilizer applications in Cretaceous shale settings might help to control the oxidation and mobilization of Se and other trace constituents into the environment. JF - Journal of Environmental Quality AU - Wright, W G AD - U.S. Geological Survey, Water Resources Division, P.O. Box 3367, Durango, CO 81301, USA, wgwright@usgs.gov Y1 - 1999/08// PY - 1999 DA - Aug 1999 SP - 1182 EP - 1187 VL - 28 IS - 4 SN - 0047-2425, 0047-2425 KW - USA, Colorado KW - Pollution Abstracts; Water Resources Abstracts KW - Nitrates KW - Drainage KW - Irrigation KW - Oxidation-reduction Potential KW - Selenium KW - Fertilizers KW - Shales KW - Chemical Reduction KW - Oxidation KW - Geohydrology KW - Irrigation Water KW - P 5000:LAND POLLUTION KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17583321?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Oxidation+and+Mobilization+of+Selenium+by+Nitrate+in+Irrigation+Drainage&rft.au=Wright%2C+W+G&rft.aulast=Wright&rft.aufirst=W&rft.date=1999-08-01&rft.volume=28&rft.issue=4&rft.spage=1182&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Selenium; Nitrates; Oxidation; Irrigation Water; Geohydrology; Chemical Reduction; Oxidation-reduction Potential; Shales; Irrigation; Drainage; Fertilizers ER - TY - JOUR T1 - Relation of macroinvertebrate community impairment to catchment characteristics in New Jersey streams AN - 17581026; 4658904 AB - The level of macroinvertebrate community impairment was statistically related to selected basin and water-quality characteristics in New Jersey streams. More than 700 ambient biomonitoring stations were chosen to evaluate potential and known anthropogenic effects. Macroinvertebrate communities were assessed with a modified rapid-bioassessment approach using three impairment ratings (nonimpaired, moderately impaired, and severely impaired). Maximum-likelihood multiple logistic-regression analysis was used to develop equations defining the probability of community impairment above predetermined impairment levels. Seven of the original 140 explanatory variables were highly related to the level of community impairment. Explanatory variables found to be most useful for predicting severe macroinvertebrate community impairment were the amount of urban land and total flow of municipal effluent. Area underlain by the Reading Prong physiographic region and amount of forested land were inversely related to severe impairment. Nonparametric analysis of variance on rank-transformed bioassessment scores was used to evaluate differences in level of impairment among physiographic regions and major drainage areas simultaneously. Rejection of the null hypothesis indicated that the levels of impairment among all six physiographic regions and five major drainage areas were not equal. Physiographic regions located in the less urbanized northwest portion of New Jersey were not significantly different from each other and had the lowest occurrence of severely impaired macroinvertebrate communities. Physiographic regions containing urban centers had a higher probability of exhibiting a severely impaired macroinvertebrate community. Analysis of major drainage areas indicates that levels of impairment in the Atlantic Coastal Rivers drainage area differed significantly from those in the Lower Delaware River drainage area. JF - Journal of the American Water Resources Association AU - Kennen, J G AD - U.S. Geological Survey, 810 Bear Tavern Road, Suite 206, West Trenton, New Jersey 08628, USA, gkennen@usgs.gov Y1 - 1999/08// PY - 1999 DA - Aug 1999 SP - 939 EP - 954 VL - 35 IS - 4 SN - 1093-474X, 1093-474X KW - USA, New Jersey KW - physiographic regions KW - Aqualine Abstracts; Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Water Resources Abstracts KW - Catchment area KW - Animals (Invertebrates) (see also Individual groups) KW - Urbanization KW - Pollution effects KW - Macroinvertebrates KW - Freshwater KW - Water quality KW - Watersheds KW - Streams KW - Bioassay KW - Aquatic communities KW - Invertebrata KW - Urban areas KW - Domestic wastes KW - Rivers KW - Water Quality KW - Environmental impact KW - Aurelia KW - Streams (in natural channels) KW - Land use KW - Community composition KW - Urban Areas KW - Catchments KW - Water quality (Natural waters) KW - SW 5010:Network design KW - Q1 08463:Habitat community studies KW - P 2000:FRESHWATER POLLUTION KW - Q5 08504:Effects on organisms KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17581026?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Relation+of+macroinvertebrate+community+impairment+to+catchment+characteristics+in+New+Jersey+streams&rft.au=Kennen%2C+J+G&rft.aulast=Kennen&rft.aufirst=J&rft.date=1999-08-01&rft.volume=35&rft.issue=4&rft.spage=939&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Catchment area; Rivers; Community composition; Aquatic communities; Urbanization; Environmental impact; Pollution effects; Watersheds; Water quality; Land use; Domestic wastes; Catchments; Invertebrata; Animals (Invertebrates) (see also Individual groups); Aurelia; Streams (in natural channels); Water quality (Natural waters); Urban areas; Urban Areas; Water Quality; Macroinvertebrates; Streams; Bioassay; Freshwater ER - TY - JOUR T1 - Distribution and diurnal behavior of Steller's eiders wintering on the Alaska Peninsula AN - 17474993; 4677070 AB - We studied the distribution and activities of adult Steller's Eiders (Polysticta stelleri) during winter and spring on a deep-water embayment and a shallow lagoon along the Alaska Peninsula from September 1980 to May 1981. During the remigial molt, eiders were observed on Izembek Lagoon but not on Cold Bay. Following the flightless period, Izembek Lagoon continued to support 63-100% of eiders encountered during surveys. As ice cover on Izembek Lagoon increased, the number of birds decreased on Izembek Lagoon but increased on Cold Bay, suggesting that some eiders disperse to nearshore, deep-water habitats in close proximity to Izembek Lagoon during severe weather. Diurnal activity budgets indicated that the amount of time resting or engaged in aggression and alert activities was similar among locations, seasons, tidal stages, and sexes. In contrast, time spent foraging differed among seasons and locations but did not differ among tidal stages or sexes. Although time spent foraging was similar during winter and spring on Izembek Lagoon, eiders on Cold Bay foraged more during winter compared to spring. Synchronous diving was the dominant foraging strategy. JF - Condor AU - Laubhan, M K AU - Metzner, KA AD - Midcontinent Ecological Science Center, U.S. Geological Survey, Fort Collins, CO 80525-3400, USA, murray_laubhan@usgs.gov Y1 - 1999/08// PY - 1999 DA - Aug 1999 SP - 694 EP - 698 VL - 101 IS - 3 SN - 0010-5422, 0010-5422 KW - Steller's eider KW - USA, Alaska KW - spring KW - winter KW - Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Animal Behavior Abstracts; Ecology Abstracts KW - Marine KW - Diurnal variations KW - Foraging behavior KW - Polysticta stelleri KW - Diving KW - Ecological distribution KW - Molting KW - Habitat KW - Feeding behaviour KW - Moulting KW - Habitat utilization KW - Activity patterns KW - INE, USA, Alaska, Alaska Peninsula KW - Seasonal variations KW - D 04671:Birds KW - Q1 08361:General KW - Y 25536:Birds KW - O 1050:Vertebrates, Urochordates and Cephalochordates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17474993?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Condor&rft.atitle=Distribution+and+diurnal+behavior+of+Steller%27s+eiders+wintering+on+the+Alaska+Peninsula&rft.au=Laubhan%2C+M+K%3BMetzner%2C+KA&rft.aulast=Laubhan&rft.aufirst=M&rft.date=1999-08-01&rft.volume=101&rft.issue=3&rft.spage=694&rft.isbn=&rft.btitle=&rft.title=Condor&rft.issn=00105422&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Diurnal variations; Feeding behaviour; Diving; Ecological distribution; Moulting; Activity patterns; Habitat; Foraging behavior; Habitat utilization; Molting; Seasonal variations; Polysticta stelleri; INE, USA, Alaska, Alaska Peninsula; Marine ER - TY - JOUR T1 - Status of Lake Trout Rehabilitation in the Northern Refuge of Lake Michigan AN - 17442854; 4660485 AB - The Northern Refuge in Lake Michigan was established in 1985 as part of a rehabilitation program to stock yearling lake trout Salvelinus namaycush in areas with the best potential for success. Stocking of hatchery-reared lake trout within the refuge began in 1986 at three reefs: Boulder Reef, Gull Island Reef, and Richards Reef. On each reef from 1991 to 1997 we conducted gill-net surveys during the fall spawning season to evaluate performance of adult lake trout, and we conducted beam trawl surveys for naturally reproduced age-0 lake trout in the spring. Criteria to evaluate performance included spawner density, growth, maturity, and mortality. We found no evidence of natural reproduction by lake trout from our surveys. Nevertheless, density of spawning lake trout on Boulder Reef (69 fish/305 m of gill net/night) and Gull Island Reef (34 fish/305 m of gill net/night) appeared to be sufficiently high to initiate a self-sustaining population. Growth and maturity rates of lake trout in the Northern Refuge were similar to those for lake trout stocked in the nearshore region of Lake Michigan. In the Northern Refuge, growth rate for the Marquette strain of lake trout was slightly higher than for the Lewis Lake strain. Annual mortality estimates from catch curve analyses ranged from 0.46 to 0.41, and therefore, these estimates approached a level that was considered to be sufficiently low to allow for a self-sustaining population. Thus, it appeared that the lack of evidence for natural reproduction by lake trout in the Northern Refuge should not be attributed to inability of the population to attain a sufficiently large stock of spawners. JF - North American Journal of Fisheries Management AU - Madenjian, C P AU - DeSorcie, T J AD - U.S. Geological Survey, Biological Resources Division, Great Lakes Science Center, 1451 Green Road, Ann Arbor, Michigan 48105, USA, chuck_madenjian@usgs.gov Y1 - 1999/08// PY - 1999 DA - Aug 1999 SP - 658 EP - 669 VL - 19 IS - 3 SN - 0275-5947, 0275-5947 KW - Lake trout KW - North America, Michigan L. KW - USA, Lake Michigan KW - Ecology Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA Aquaculture Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Reefs KW - Population Dynamics KW - USA, Michigan L., Northern Refuge KW - Cultured organisms KW - Fishery resources KW - Lake fisheries KW - Protected resources KW - Living resources KW - Fishery management KW - Gill Nets KW - Salvelinus namaycush KW - Fish Stocking KW - Mortality KW - Stocking (organisms) KW - Refuges KW - Rehabilitation KW - Resource conservation KW - Estimating KW - Spawning populations KW - Surveys KW - Growth Rates KW - Spawning KW - Population establishment KW - Lake Fisheries KW - Performance Evaluation KW - Stocking KW - Trout KW - Fish Populations KW - D 04700:Management KW - Q5 08523:Conservation, wildlife management and recreation KW - SW 6090:Fisheries engineering KW - SW 0850:Lakes KW - Q3 08582:Fish culture KW - Q1 08604:Stock assessment and management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17442854?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=North+American+Journal+of+Fisheries+Management&rft.atitle=Status+of+Lake+Trout+Rehabilitation+in+the+Northern+Refuge+of+Lake+Michigan&rft.au=Madenjian%2C+C+P%3BDeSorcie%2C+T+J&rft.aulast=Madenjian&rft.aufirst=C&rft.date=1999-08-01&rft.volume=19&rft.issue=3&rft.spage=658&rft.isbn=&rft.btitle=&rft.title=North+American+Journal+of+Fisheries+Management&rft.issn=02755947&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Mortality; Living resources; Refuges; Protected resources; Stocking (organisms); Fishery management; Resource conservation; Spawning populations; Cultured organisms; Fishery resources; Lake fisheries; Stocking; Population establishment; Reefs; Fish Stocking; Rehabilitation; Estimating; Population Dynamics; Surveys; Spawning; Growth Rates; Lake Fisheries; Performance Evaluation; Trout; Gill Nets; Fish Populations; Salvelinus namaycush; USA, Michigan L., Northern Refuge ER - TY - JOUR T1 - Transport of sediment-bound organochlorine pesticides to the San Joaquin River, California AN - 17438882; 4658905 AB - Suspended sediment samples were collected in west-side tributaries and the main stem of the San Joaquin River, California, in June 1994 during the irrigation season and in January 1995 during a winter storm. These samples were analyzed for 15 organochlorine pesticides to determine their occurrence and their concentrations on suspended sediment and to compare transport during the irrigation season (April to September) to transport during winter storm runoff (October to March). Ten organochlorine pesticides were detected during the winter storm runoff; seven during the irrigation season. The most frequently detected organochlorine pesticides during both sampling periods were p,p'-DDE, p,p'-DDT, p,p'-DDD, dieldrin, toxaphene, and chlordane. Dissolved samples were analyzed for three organochlorine pesticides during the irrigation season and for 15 during the winter storm. Most calculated total concentrations of p,p'-DDT, chlordane, dieldrin, and toxaphene exceeded chronic criteria for the protection of freshwater aquatic life. At eight sites in common between sampling periods, suspended sediment concentrations and streamflow were greater during the winter storm runoff - median concentration of 3,590 mg/L versus 489 mg/L and median streamflow of 162 ft super(3)/s versus 11 ft super(3)/s. Median concentrations of total DDT (sum of p,p'-DDD, p,p'-DDE, and p,p'-DDT), chlordane, dieldrin, and toxaphene on suspended sediment were slightly greater during the irrigation season, but instantaneous loads of organochlorine pesticides at the time of sampling were substantially greater during the winter storm. Estimated loads for the entire irrigation season exceeded estimated loads for the January 1995 storm by about 2 to 4 times for suspended transport and about 3 to 11 times for total transport. However, because the mean annual winter runoff is about 2 to 4 times greater than the runoff during the January 1995 storm, mean winter transport may be similar to irrigation season transport. This conclusion is tentative primarily because of insufficient information on long-term seasonal variations in suspended sediment and organochlorine concentrations. Nevertheless, runoff from infrequent winter storms will continue to deliver a significant load of sediment-bound organochlorine pesticides to the San Joaquin River even if irrigation-induced sediment transport is reduced. As a result, concentrations of organochlorine pesticides in San Joaquin River biota will continue to be relatively high compared to other regions of the United States. JF - Journal of the American Water Resources Association AU - Kratzer, C R AD - U.S. Geological Survey, Water Resources Division, Placer Hall, 6000 J Street, Sacramento, California 95819-6129, USA, ckratzer@usgs.gov Y1 - 1999/08// PY - 1999 DA - Aug 1999 SP - 957 EP - 982 VL - 35 IS - 4 SN - 1093-474X, 1093-474X KW - USA, California, San Joaquin R. KW - sediment transport KW - Aqualine Abstracts; Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - River Basins KW - Organochlorine compounds KW - Storm Runoff KW - Agricultural pollution KW - Freshwater KW - Agricultural Chemicals KW - Stormwater runoff KW - Catchment areas KW - Irrigation (see also Land treatment) KW - Sediment transport KW - Agricultural runoff KW - Sediment Transport KW - Agricultural chemicals KW - Sediment pollution KW - Pesticides (see also Bactericides, Weedkillers) KW - DDD KW - Irrigation KW - DDE KW - River basins KW - Transport KW - Pesticides KW - DDT KW - Runoff KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17438882?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Transport+of+sediment-bound+organochlorine+pesticides+to+the+San+Joaquin+River%2C+California&rft.au=Kratzer%2C+C+R&rft.aulast=Kratzer&rft.aufirst=C&rft.date=1999-08-01&rft.volume=35&rft.issue=4&rft.spage=957&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Sediment pollution; DDE; DDT; Pesticides; Sediment transport; Agricultural runoff; Organochlorine compounds; Stormwater runoff; Agricultural pollution; River basins; Agricultural chemicals; Pesticides (see also Bactericides, Weedkillers); Catchment areas; DDD; Transport; Irrigation (see also Land treatment); Runoff; Sediment Transport; River Basins; Agricultural Chemicals; Storm Runoff; Irrigation; Freshwater ER - TY - JOUR T1 - Estimation of geomorphically significant flows in alpine streams of the Rocky Mountains, Colorado (USA) AN - 17400842; 4605998 AB - Streamflows recorded at 24 gauging stations in the Rocky Mountains of Colorado were analyzed to derive regional regression equations for estimating the natural flow duration and flood frequency in reaches where the natural flows are unknown or have been altered by diversion or regulation. The principal objective of this analysis is to determine whether the relatively high, infrequent, but geomorphically and ecologically important flows in the Rocky Mountains can be accurately estimated by regional flow duration equations. The region considered in this study is an area of relatively abundant runoff, and, consequently, intense water resources development. The specific streams analyzed here, however, are unaltered and remain nearly pristine. Regional flow duration equations are derived for two situations. When the mean annual discharge is known, flows greater than or equal to 10% of the time can be estimated with an uncertainty of plus or minus 9% for the 10% exceedance flow, to plus or minus 11% for the 1.0% exceedance flow. When the mean annual discharge is unknown, the relatively high, infrequent flow can be estimated using the mean basin precipitation rate (in m super(3)/s), and basin relief with an uncertainty of plus or minus 23% for the 10% exceedance flow to plus or minus 21% for the 1.0% exeedance flow. The uncertainty in estimated discharges using the equations derived in this analysis is substantially smaller than has been previously reported, especially for the geomorphically significant flows which are relatively large and infrequent. The improvement is due primarily to the quality of streamflow records analyzed and a well-defined hydrologic region. JF - Regulated Rivers: Research & Management AU - Surian, N AU - Andrews, ED AD - U.S. Geological Survey, 3215 Marine Street, Boulder, CO 80303, USA, eandrews@usgs.gov Y1 - 1999/08// PY - 1999 DA - Aug 1999 SP - 273 EP - 288 VL - 15 IS - 4 SN - 0886-9375, 0886-9375 KW - USA, Colorado, Rocky Mts. KW - Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Regression Analysis KW - Gaging Stations KW - Mathematical Equations KW - Floods and flooding KW - Freshwater KW - Water Resources Development KW - Mountains KW - Geomorphology KW - Regression analysis KW - Water resources development KW - Rivers KW - Fluvial morphology KW - Estimating KW - Flow Discharge KW - Streamflow KW - Gauging stations KW - Stream flow KW - USA, Colorado KW - Alpine Regions KW - Flood Frequency KW - AQ 00001:Water Resources and Supplies KW - Q2 09271:Coastal morphology KW - SW 0835:Streamflow and runoff UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17400842?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Regulated+Rivers%3A+Research+%26+Management&rft.atitle=Estimation+of+geomorphically+significant+flows+in+alpine+streams+of+the+Rocky+Mountains%2C+Colorado+%28USA%29&rft.au=Surian%2C+N%3BAndrews%2C+ED&rft.aulast=Surian&rft.aufirst=N&rft.date=1999-08-01&rft.volume=15&rft.issue=4&rft.spage=273&rft.isbn=&rft.btitle=&rft.title=Regulated+Rivers%3A+Research+%26+Management&rft.issn=08869375&rft_id=info:doi/10.1002%2F%28SICI%291099-1646%28199907%2F08%2915%3A43.0.CO%3B2-B LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Rivers; Fluvial morphology; Geomorphology; Stream flow; Mountains; Floods and flooding; Regression analysis; Water resources development; Gauging stations; Regression Analysis; Alpine Regions; Gaging Stations; Estimating; Mathematical Equations; Flow Discharge; Streamflow; Water Resources Development; Flood Frequency; USA, Colorado; Freshwater DO - http://dx.doi.org/10.1002/(SICI)1099-1646(199907/08)15:4<273::AID-RRR519>3.0.CO;2-B ER - TY - JOUR T1 - Trace-element concentrations in streambed sediment across the conterminous United States AN - 17385561; 4608335 AB - Trace-element concentrations in 541 streambed-sediment samples collected from 20 study areas across the conterminous United States were examined as part of the National Water-Quality Assessment Program of the U.S. Geological Survey. Sediment samples were sieved and the <63- mu m fraction was retained for determination of total concentrations of trace elements. Aluminum, iron, titanium, and organic carbon were weakly or not at all correlated with the nine trace elements examined: arsenic, cadmium, chromium, copper, lead, mercury, nickel, selenium, and zinc. Four different methods of accounting for background/baseline concentrations were examined; however, normalization was not required because field sieving removed most of the background differences between samples. The sum of concentrations of trace elements characteristic of urban settings--copper, mercury, lead, and zinc--was well correlated with population density, nationwide. Median concentrations of seven trace elements (all nine examined except arsenic and selenium) were enriched in samples collected from urban settings relative to agricultural or forested settings. Forty-nine percent of the sites sampled in urban settings had concentrations of one or more trace elements that exceeded levels at which adverse biological effects could occur in aquatic biota. JF - Environmental Science & Technology AU - Rice, K C AD - U.S. Geological Survey, P.O. Box B, Charlottesville, VA 22903, USA, kcrice@usgs.gov Y1 - 1999/08/01/ PY - 1999 DA - 1999 Aug 01 SP - 2499 EP - 2504 VL - 33 IS - 15 SN - 0013-936X, 0013-936X KW - USA KW - Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Rivers KW - Sediment pollution KW - Bed Load KW - Particle Size KW - Fluvial Sediments KW - Water quality measurements KW - Population density KW - Trace Elements KW - Copper KW - Geochemical surveys KW - Streams KW - Pollution surveys KW - Lead KW - Sediments KW - Trace elements KW - Urban Areas KW - Population Density KW - Zinc KW - Correlation Analysis KW - Mercury KW - Enrichment KW - Q5 08503:Characteristics, behavior and fate KW - SW 0880:Chemical processes KW - P 2000:FRESHWATER POLLUTION KW - Q2 09187:Geochemistry of sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17385561?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Trace-element+concentrations+in+streambed+sediment+across+the+conterminous+United+States&rft.au=Rice%2C+K+C&rft.aulast=Rice&rft.aufirst=K&rft.date=1999-08-01&rft.volume=33&rft.issue=15&rft.spage=2499&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Rivers; Sediment pollution; Geochemical surveys; Pollution surveys; Sediments; Trace elements; Zinc; Water quality measurements; Population density; Mercury; Copper; Streams; Lead; Fluvial Sediments; Population Density; Particle Size; Urban Areas; Bed Load; Correlation Analysis; Trace Elements; Enrichment ER - TY - JOUR T1 - Soil calcium status and the response of stream chemistry to changing acidic deposition rates AN - 17376417; 4597905 AB - Despite a decreasing trend in acidic deposition rates over the past two to three decades, acidified surface waters in the northeastern United States have shown minimal changes. Depletion of soil Ca pools has been suggested as a cause, although changes in soil Ca pools have not been directly related to long-term records of stream chemistry. To investigate this problem, a comprehensive watershed study was conducted in the Neversink River Basin, in the Catskill Mountains of New York, during 1991-1996. Spatial variations of atmospheric deposition, soil chemistry, and stream chemistry were evaluated over an elevation range of 817-1234 m to determine whether these factors exhibited elevational patterns. An increase in atmospheric deposition of SO sub(4) with increasing elevation corresponded with upslope decreases of exchangeable soil base concentrations and acid-neutralizing capacity of stream water. Exchangeable base concentrations in homogeneous soil incubated within the soil profile for one year also decreased with increasing elevation. An elevational gradient in precipitation was not observed, and effects of a temperature gradient on soil properties were not detected. Laboratory leaching experiments with soils from this watershed showed that (1) concentrations of Ca in leachate increased as the concentrations of acid anions in added solution increased, and (2) the slope of this relationship was positively correlated with base saturation. Field and laboratory soil analyses are consistent with the interpretation that decreasing trends in acid-neutralizing capacity in stream water in the Neversink Basin, dating back to 1984, are the result of decreases in soil base saturation caused by acidic deposition. JF - Ecological Applications AU - Lawrence, G B AU - David, M B AU - Lovett, G M AU - Murdoch, P S AU - Burns, DA AU - Stoddard, J L AU - Baldigo, B P AU - Porter, J H AU - Thompson, A W AD - U.S. Geological Survey, 425 Jordan Road, Troy, New York 12180 USA, glawrenc@usgs.gov Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 1059 EP - 1072 VL - 9 IS - 3 SN - 1051-0761, 1051-0761 KW - USA, New York KW - calcium KW - ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts KW - Rivers KW - Calcium KW - Acid rain KW - Geochemistry KW - Soil chemistry KW - Watersheds KW - Water quality KW - Streams KW - Acidification KW - pH effects KW - pH KW - D 04315:Riverbasins KW - Q5:08582 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17376417?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Applications&rft.atitle=Soil+calcium+status+and+the+response+of+stream+chemistry+to+changing+acidic+deposition+rates&rft.au=Lawrence%2C+G+B%3BDavid%2C+M+B%3BLovett%2C+G+M%3BMurdoch%2C+P+S%3BBurns%2C+DA%3BStoddard%2C+J+L%3BBaldigo%2C+B+P%3BPorter%2C+J+H%3BThompson%2C+A+W&rft.aulast=Lawrence&rft.aufirst=G&rft.date=1999-08-01&rft.volume=9&rft.issue=3&rft.spage=1059&rft.isbn=&rft.btitle=&rft.title=Ecological+Applications&rft.issn=10510761&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Rivers; Acid rain; Calcium; Geochemistry; Acidification; Water quality; Watersheds; pH; Soil chemistry; Streams; pH effects ER - TY - JOUR T1 - The evolutionary history of steelhead (Oncorhynchus mykiss) along the US Pacific Coast: Developing a conservation strategy using genetic diversity AN - 17370900; 4581970 AB - Changes in genetic variation across a species range may indicate patterns of population structure resulting from past ecological and demographic events that are otherwise difficult to infer and thus provide insight into evolutionary development. Genetic data is used, drawn from 11 microsatellite loci amplified from anadromous steelhead (Oncorhynchus mykiss) sampled throughout its range in the eastern Pacific Ocean, to explore population structure at the southern edge in California. Steelhead populations in this region represent less than 10% of their reported historic abundance and survive in very small populations found in fragmented habitats. Genetic data derived from three independent molecular systems (allozymes, mtDNA, and microsatellites) have shown that the southernmost populations are characterized by a relatively high genetic diversity. Two hypothetical models supporting genetic population substructure such as observed were considered: (1) range expansion with founder-flush effects and subsequent population decline; (2) a second Pleistocene radiation from the Gulf of California. Using genetic and climatic data, a second Pleistocene refugium contributing to a southern ecotone seems more feasible. These data support strong conservation measures based on genetic diversity be developed to ensure the survival of this uniquely diverse gene pool. JF - ICES Journal of Marine Science AU - Nielsen, J L AD - USGS/BRD, Alaska Biological Science Center, 1011 East Tudor Rd., Anchorage, 99503, AK, USA Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 449 EP - 458 PB - Academic Press VL - 56 IS - 4 SN - 1054-3139, 1054-3139 KW - Rainbow trout KW - Genetics Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Oceanic Abstracts KW - Marine KW - Biogeography KW - Anadromous species KW - Brackish KW - Genetic diversity KW - Oncorhynchus mykiss KW - Freshwater KW - INE, USA, Pacific Northwest KW - Population genetics KW - INE, Pacific KW - Nature conservation KW - Pleistocene KW - Population structure KW - Conservation genetics KW - Evolution KW - Q5 08523:Conservation, wildlife management and recreation KW - Q1 08443:Population genetics KW - O 4090:Conservation and Environmental Protection KW - G 07371:Fish KW - G 07260:Taxonomy, systematics and evolutionary genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17370900?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ICES+Journal+of+Marine+Science&rft.atitle=The+evolutionary+history+of+steelhead+%28Oncorhynchus+mykiss%29+along+the+US+Pacific+Coast%3A+Developing+a+conservation+strategy+using+genetic+diversity&rft.au=Nielsen%2C+J+L&rft.aulast=Nielsen&rft.aufirst=J&rft.date=1999-08-01&rft.volume=56&rft.issue=4&rft.spage=449&rft.isbn=&rft.btitle=&rft.title=ICES+Journal+of+Marine+Science&rft.issn=10543139&rft_id=info:doi/10.1006%2Fjmsc.1999.0452 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Population genetics; Biogeography; Anadromous species; Nature conservation; Pleistocene; Genetic diversity; Population structure; Evolution; Conservation genetics; Oncorhynchus mykiss; INE, Pacific; INE, USA, Pacific Northwest; Marine; Brackish; Freshwater DO - http://dx.doi.org/10.1006/jmsc.1999.0452 ER - TY - JOUR T1 - Acute toxicity of hydrogen peroxide treatments to selected lifestages of cold-, cool-, and warmwater fish AN - 17289206; 4553413 AB - Hatchery personnel depend on therapeutant treatments to control diseases. Currently, hatchery managers in the United States are limited to one approved therapeutant (formalin) and three compounds of Low Regulatory Priority (sodium chloride, hydrogen peroxide, and acetic acid) to control external diseases of cultured fish. Hydrogen peroxide has been used to effectively control external columnaris and bacterial gill disease in rainbow trout, however, definitive safe treatment concentrations for hydrogen peroxide are lacking for a variety of species. We report the acute toxicity of hydrogen peroxide treatments to 11 species of fry and 13 species of fingerling freshwater fish. Most mortality occurred within the first 30 h after the first exposure to hydrogen peroxide with little change in the overall shape of survival curves over time. Our data predict that in an actual therapeutic application of hydrogen peroxide, most treatment-related mortalities would be observed shortly after the initial exposure. Coolwater species were more sensitive than coldwater species but were generally similar to warmwater species tested. Based on our mortality data, coldwater species and largemouth bass may be treated for 60 min at concentrations of less than or equal to 150 mu l/l without harmful effects; all muskellunge, walleye, bluegill, channel catfish, yellow perch, pallid sturgeon fingerlings, fathead minnow fingerlings, white sucker fingerlings, and northern pike fry may be treated for 60 min at less than or equal to 100 mu l/l; and northern pike fingerlings and white sucker, yellow perch and fathead minnow fry may be treated for 60 min at less than or equal to 50 mu l/l. JF - Aquaculture AU - Gaikowski, M P AU - Rach, J J AU - Ramsay, R T AD - USGS Biological Resources Division, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Rd., La Crosse, WI 54603, USA Y1 - 1999/08/01/ PY - 1999 DA - 1999 Aug 01 SP - 191 EP - 207 PB - Elsevier Science B.V. VL - 178 IS - 3-4 SN - 0044-8486, 0044-8486 KW - acute toxicity KW - antibacterial agents KW - hydrogen peroxide KW - Pollution Abstracts; Toxicology Abstracts; ASFA Aquaculture Abstracts; ASFA 1: Biological Sciences & Living Resources KW - fish culture KW - Disease control KW - Aquaculture KW - Disinfectants KW - Fishery management KW - Hydrogen peroxide KW - Hydrogen compounds KW - Antibacterial agents KW - Fish culture KW - Mortality KW - Hatcheries KW - fish diseases KW - Fish diseases KW - Toxicity testing KW - Q1 08587:Diseases of Cultured Organisms KW - P 6000:TOXICOLOGY AND HEALTH KW - Q3 08587:Diseases of Cultured Organisms KW - X 24111:Acute exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17289206?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquaculture&rft.atitle=Acute+toxicity+of+hydrogen+peroxide+treatments+to+selected+lifestages+of+cold-%2C+cool-%2C+and+warmwater+fish&rft.au=Gaikowski%2C+M+P%3BRach%2C+J+J%3BRamsay%2C+R+T&rft.aulast=Gaikowski&rft.aufirst=M&rft.date=1999-08-01&rft.volume=178&rft.issue=3-4&rft.spage=191&rft.isbn=&rft.btitle=&rft.title=Aquaculture&rft.issn=00448486&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Hatcheries; Mortality; Disinfectants; Fishery management; Fish diseases; Hydrogen compounds; Disease control; Aquaculture; Fish culture; fish diseases; Hydrogen peroxide; fish culture; Antibacterial agents; Toxicity testing ER -