TY - JOUR T1 - 2,3,7,8-TCDD effects on visual structure and function in swim-up rainbow trout. AN - 67168903; 15597885 AB - An understanding of mechanisms of contaminant effects across levels of biological organization is essential in ecotoxicology if we are to generate predictive models for population-level effects. We applied a suite of biochemical, histological, and behavioral end points related to visual structure and function and foraging behavior to evaluate effects of 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) on swim-up rainbow trout. We detected a dose-dependent decrease in densities of retinal ganglion cells (RGC), key retinal neurons that link the eye with the brain. These changes resulted in corresponding deficits in visual/motor function including reductions in visual acuity and in scotopic and photopic thresholds due to TCDD. The loss of RGCs suggests an increase in convergence of synapses from photoreceptors to RGCs as a cellular mechanism for the visual deficits. Dose-dependent increases in immunohistochemical detection of CYP1A protein in the vasculature of the brain and eye choroid was proportional with decreased ganglion cell densities in the retina. TCDD-induced AHR-regulated effects on these tissues might be involved in the detected decrease in ganglion cell densities. Prey capture rate decreased after TCDD exposure only atthe highesttreatment groups evaluated. Collectively, these results show that TCDD causes biochemical and structural changes in the eye and brain of rainbow trout that are associated with behavioral deficits leading to decreased individual fitness. JF - Environmental science & technology AU - Carvalho, Paulo S M AU - Tillitt, Donald E AD - Columbia Environmental Research Center, United States Geological Survey, Columbia, Missouri 65201, USA. pcarvalho@ccb.ufsc.br Y1 - 2004/12/01/ PY - 2004 DA - 2004 Dec 01 SP - 6300 EP - 6306 VL - 38 IS - 23 SN - 0013-936X, 0013-936X KW - Environmental Pollutants KW - 0 KW - Polychlorinated Dibenzodioxins KW - Cytochrome P-450 CYP1A1 KW - EC 1.14.14.1 KW - Index Medicus KW - Animals KW - Neurons -- metabolism KW - Dose-Response Relationship, Drug KW - Brain -- drug effects KW - Neurons -- drug effects KW - Cytochrome P-450 CYP1A1 -- metabolism KW - Brain -- metabolism KW - Choroid -- drug effects KW - Retinal Ganglion Cells -- metabolism KW - Trout KW - Choroid -- anatomy & histology KW - Retinal Ganglion Cells -- drug effects KW - Immunohistochemistry KW - Cytochrome P-450 CYP1A1 -- drug effects KW - Vision Disorders -- pathology KW - Vision Disorders -- chemically induced KW - Environmental Pollutants -- toxicity KW - Polychlorinated Dibenzodioxins -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67168903?accountid=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=Environmental+science+%26+technology&rft.atitle=2%2C3%2C7%2C8-TCDD+effects+on+visual+structure+and+function+in+swim-up+rainbow+trout.&rft.au=Carvalho%2C+Paulo+S+M%3BTillitt%2C+Donald+E&rft.aulast=Carvalho&rft.aufirst=Paulo+S&rft.date=2004-12-01&rft.volume=38&rft.issue=23&rft.spage=6300&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 completed - 2005-03-21 N1 - Date created - 2004-12-15 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Effects of sediment characteristics on the toxicity of chromium(III) and chromium(VI) to the amphipod, Hyalella azteca. AN - 67166673; 15597873 AB - We evaluated the influence of sediment characteristics, acid-volatile sulfide (AVS) and organic matter (OM), on the toxicity of chromium (Cr) in freshwater sediments. We conducted chronic (28-42-d) toxicitytests with the amphipod Hyalella azteca exposed to Cr(VI) and Cr(III) in water and in spiked sediments. Waterborne Cr(VI) caused reduced survival of amphipods with a median lethal concentration (LC50) of 40 microg/L. Cr(VI) spiked into test sediments with differing levels of AVS resulted in graded decreases in AVS and sediment OM. Only Cr(VI)-spiked sediments with low AVS concentrations (< 1micromol/g) caused significant amphipod mortality. Waterborne Cr(III) concentrations near solubility limits caused decreased survival of amphipods at pH 7 and pH 8 but not at pH 6. Sediments spiked with high levels of Cr(III) did not affect amphipod survival but had minor effects on growth and inconsistent effects on reproduction. Pore waters of some Cr(III)-spiked sediments contained measurable concentrations of Cr(VI), but observed toxic effects did not correspond closely to Cr concentrations in sediment or pore waters. Our results indicate that risks of Cr toxicity are low in freshwater sediments containing substantial concentrations of AVS. JF - Environmental science & technology AU - Besser, John M AU - Brumbaugh, William G AU - Kemble, Nile E AU - May, Thomas W AU - Ingersoll, Christopher G AD - US Geological Survey, Columbia Environmental Research Center, Columbia, Missouri 65201, USA. jbesser@usgs.gov Y1 - 2004/12/01/ PY - 2004 DA - 2004 Dec 01 SP - 6210 EP - 6216 VL - 38 IS - 23 SN - 0013-936X, 0013-936X KW - Water Pollutants, Chemical KW - 0 KW - Chromium KW - 0R0008Q3JB KW - Index Medicus KW - Animals KW - Hydrogen-Ion Concentration KW - Toxicity Tests KW - Geologic Sediments -- chemistry KW - Fresh Water -- chemistry KW - Chromium -- chemistry KW - Amphipoda -- metabolism KW - Water Pollutants, Chemical -- toxicity KW - Amphipoda -- drug effects KW - Chromium -- toxicity KW - Water Pollutants, Chemical -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67166673?accountid=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=Environmental+science+%26+technology&rft.atitle=Effects+of+sediment+characteristics+on+the+toxicity+of+chromium%28III%29+and+chromium%28VI%29+to+the+amphipod%2C+Hyalella+azteca.&rft.au=Besser%2C+John+M%3BBrumbaugh%2C+William+G%3BKemble%2C+Nile+E%3BMay%2C+Thomas+W%3BIngersoll%2C+Christopher+G&rft.aulast=Besser&rft.aufirst=John&rft.date=2004-12-01&rft.volume=38&rft.issue=23&rft.spage=6210&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 completed - 2005-03-21 N1 - Date created - 2004-12-15 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Occurrence of microbial indicators and Clostridium perfringens in wastewater, water column samples, sediments, drinking water, and Weddell seal feces collected at McMurdo Station, Antarctica. AN - 67141863; 15574926 AB - McMurdo Station, Antarctica, has discharged untreated sewage into McMurdo Sound for decades. Previous studies delineated the impacted area, which included the drinking water intake, by using total coliform and Clostridium perfringens concentrations. The estimation of risk to humans in contact with the impacted and potable waters may be greater than presumed, as these microbial indicators may not be the most appropriate for this environment. To address these concerns, concentrations of these and additional indicators (fecal coliforms, Escherichia coli, enterococci, coliphage, and enteroviruses) in the untreated wastewater, water column, and sediments of the impacted area and drinking water treatment facility and distribution system at McMurdo Station were determined. Fecal samples from Weddell seals in this area were also collected and analyzed for indicators. All drinking water samples were negative for indicators except for a single total coliform-positive sample. Total coliforms were present in water column samples at higher concentrations than other indicators. Fecal coliform and enterococcus concentrations were similar to each other and greater than those of other indicators in sediment samples closer to the discharge site. C. perfringens concentrations were higher in sediments at greater distances from the discharge site. Seal fecal samples contained concentrations of fecal coliforms, E. coli, enterococci, and C. perfringens similar to those found in untreated sewage. All samples were negative for enteroviruses. A wastewater treatment facility at McMurdo Station has started operation, and these data provide a baseline data set for monitoring the recovery of the impacted area. The contribution of seal feces to indicator concentrations in this area should be considered. JF - Applied and environmental microbiology AU - Lisle, John T AU - Smith, James J AU - Edwards, Diane D AU - McFeters, Gordon A AD - U.S. Geological Survey Center for Coastal and Watershed Research, 600 Fourth St.-South, St. Petersburg, FL 33701, USA. jlisle@usgs.gov Y1 - 2004/12// PY - 2004 DA - December 2004 SP - 7269 EP - 7276 VL - 70 IS - 12 SN - 0099-2240, 0099-2240 KW - Sewage KW - 0 KW - Index Medicus KW - Animals KW - Humans KW - Antarctic Regions KW - Waste Disposal, Fluid -- methods KW - Water Purification -- methods KW - Environmental Monitoring -- methods KW - Feces -- microbiology KW - Geologic Sediments -- virology KW - Clostridium perfringens -- isolation & purification KW - Seals, Earless -- microbiology KW - Geologic Sediments -- microbiology KW - Water Supply KW - Seawater -- microbiology KW - Seawater -- virology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67141863?accountid=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=Applied+and+environmental+microbiology&rft.atitle=Occurrence+of+microbial+indicators+and+Clostridium+perfringens+in+wastewater%2C+water+column+samples%2C+sediments%2C+drinking+water%2C+and+Weddell+seal+feces+collected+at+McMurdo+Station%2C+Antarctica.&rft.au=Lisle%2C+John+T%3BSmith%2C+James+J%3BEdwards%2C+Diane+D%3BMcFeters%2C+Gordon+A&rft.aulast=Lisle&rft.aufirst=John&rft.date=2004-12-01&rft.volume=70&rft.issue=12&rft.spage=7269&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 completed - 2005-02-15 N1 - Date created - 2004-12-02 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Cited By: FEMS Microbiol Rev. 2001 Dec;25(5):513-29 [11742689] J Vet Med B Infect Dis Vet Public Health. 2001 Dec;48(10):765-9 [11846022] J Appl Microbiol. 2002;92(4):657-67 [11966906] Appl Environ Microbiol. 2003 Nov;69(11):6507-14 [14602607] J Water Health. 2003 Mar;1(1):3-14 [15384268] J Water Pollut Control Fed. 1968 May;40(5):865-8 [4876525] Appl Environ Microbiol. 1976 Jul;32(1):114-20 [788634] Appl Environ Microbiol. 1977 Aug;34(2):139-49 [20838] Appl Environ Microbiol. 1979 Jan;37(1):55-66 [216310] Appl Environ Microbiol. 1980 Aug;40(2):201-10 [6258472] J Appl Bacteriol. 1986 Mar;60(3):255-62 [3710943] Can J Microbiol. 1988 Jan;34(1):78-9 [2897874] J Appl Bacteriol. 1990 Feb;68(2):189-98 [2108110] Appl Environ Microbiol. 1993 Sep;59(9):2956-62 [8215367] Appl Environ Microbiol. 1994 Aug;60(8):2977-84 [8085833] Appl Environ Microbiol. 1995 May;61(5):1888-96 [7646026] Water Res. 1993 Apr;27(4):645-50 [11537610] Appl Environ Microbiol. 1995 Nov;61(11):3960-6 [8526509] Appl Environ Microbiol. 1996 May;62(5):1741-6 [8633872] Appl Environ Microbiol. 1996 Apr;62(4):1424-7 [8919804] Appl Environ Microbiol. 1998 Jul;64(7):2596-600 [9647835] Appl Environ Microbiol. 1998 Dec;64(12):5027-9 [9835602] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Biovermiculations; living, vermiculation-like deposits in Cueva de Villa Luz, Mexico AN - 51438002; 2007-051900 JF - Journal of Cave and Karst Studies AU - Hose, Louise D AU - Northup, Diana E AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - 112 PB - National Speleological Society, Huntsville, AL VL - 66 IS - 3 SN - 1090-6924, 1090-6924 KW - clay KW - living taxa KW - clastic sediments KW - biogenic structures KW - caves KW - karst KW - Tabasco Mexico KW - stromatolites KW - Cueva de Villa Luz KW - Mexico KW - fungi KW - bacteria KW - sediments KW - geomorphology KW - vermiculite deposits KW - solution features KW - sedimentary structures KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51438002?accountid=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+Cave+and+Karst+Studies&rft.atitle=Biovermiculations%3B+living%2C+vermiculation-like+deposits+in+Cueva+de+Villa+Luz%2C+Mexico&rft.au=Hose%2C+Louise+D%3BNorthup%2C+Diana+E%3BAnonymous&rft.aulast=Hose&rft.aufirst=Louise&rft.date=2004-12-01&rft.volume=66&rft.issue=3&rft.spage=112&rft.isbn=&rft.btitle=&rft.title=Journal+of+Cave+and+Karst+Studies&rft.issn=10906924&rft_id=info:doi/ L2 - http://www.caves.org/pub/journal/ LA - English DB - GeoRef N1 - Conference title - 2004 National Speleological Society convention N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - AL N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bacteria; biogenic structures; caves; clastic sediments; clay; Cueva de Villa Luz; fungi; geomorphology; karst; living taxa; Mexico; sedimentary structures; sediments; solution features; stromatolites; Tabasco Mexico; vermiculite deposits ER - TY - JOUR T1 - Implementing the National Cave and Karst Research Institute vision AN - 51437566; 2007-051910 JF - Journal of Cave and Karst Studies AU - Hose, Louise D AU - Boston, Penelope J AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - 115 PB - National Speleological Society, Huntsville, AL VL - 66 IS - 3 SN - 1090-6924, 1090-6924 KW - U. S. National Park Service KW - National Cave and Karst Research Institute KW - caves KW - government agencies KW - karst KW - geomorphology KW - solution features KW - research KW - information management KW - data management KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51437566?accountid=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+Cave+and+Karst+Studies&rft.atitle=Implementing+the+National+Cave+and+Karst+Research+Institute+vision&rft.au=Hose%2C+Louise+D%3BBoston%2C+Penelope+J%3BAnonymous&rft.aulast=Hose&rft.aufirst=Louise&rft.date=2004-12-01&rft.volume=66&rft.issue=3&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=Journal+of+Cave+and+Karst+Studies&rft.issn=10906924&rft_id=info:doi/ L2 - http://www.caves.org/pub/journal/ LA - English DB - GeoRef N1 - Conference title - 2004 National Speleological Society convention N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - AL N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - caves; data management; geomorphology; government agencies; information management; karst; National Cave and Karst Research Institute; research; solution features; U. S. National Park Service ER - TY - JOUR T1 - Post-Little-Ice-Age landscape and glacier change in Glacier Bay National Park; documenting more than a century of variability with repeat photography AN - 51311906; 2008-004391 JF - Eos, Transactions, American Geophysical Union AU - Molnia, B F AU - Karpilo, R D AU - Pranger, H S AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract C42A EP - 03 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - digital data KW - Quaternary KW - glaciation KW - Southeastern Alaska KW - landform evolution KW - glaciers KW - vegetation KW - Glacier Bay National Park KW - paleoclimatology KW - Holocene KW - photography KW - Muir Inlet KW - Cenozoic KW - Alaska KW - geomorphology KW - remote sensing KW - cameras KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51311906?accountid=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=Post-Little-Ice-Age+landscape+and+glacier+change+in+Glacier+Bay+National+Park%3B+documenting+more+than+a+century+of+variability+with+repeat+photography&rft.au=Molnia%2C+B+F%3BKarpilo%2C+R+D%3BPranger%2C+H+S%3BAnonymous&rft.aulast=Molnia&rft.aufirst=B&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&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 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Alaska; cameras; Cenozoic; digital data; geomorphology; glaciation; Glacier Bay National Park; glaciers; Holocene; landform evolution; Muir Inlet; paleoclimatology; photography; Quaternary; remote sensing; Southeastern Alaska; United States; vegetation ER - TY - JOUR T1 - Implications of acoustic bed velocity measurements for sediment transport and bedform dynamics in large sandbed rivers AN - 51279913; 2008-039164 JF - Eos, Transactions, American Geophysical Union AU - Gaeuman, D AU - Robert, J B AU - Johnson, H E AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H43A EP - 0356 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - sand KW - Missouri River KW - sediment transport KW - clastic sediments KW - landform evolution KW - geophysical methods KW - bedforms KW - measurement KW - kinematics KW - acoustical methods KW - gravel-bed streams KW - sediments KW - velocity KW - streams KW - acoustic Doppler current profiler data KW - 23:Geomorphology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51279913?accountid=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=Implications+of+acoustic+bed+velocity+measurements+for+sediment+transport+and+bedform+dynamics+in+large+sandbed+rivers&rft.au=Gaeuman%2C+D%3BRobert%2C+J+B%3BJohnson%2C+H+E%3BAnonymous&rft.aulast=Gaeuman&rft.aufirst=D&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&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 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - acoustic Doppler current profiler data; acoustical methods; bedforms; clastic sediments; geophysical methods; gravel-bed streams; kinematics; landform evolution; measurement; Missouri River; sand; sediment transport; sediments; streams; United States; velocity ER - TY - JOUR T1 - Response of water levels in Devils Hole, Death Valley National Park, Nevada, to atmospheric loading, Earth tides, and earthquakes AN - 51261583; 2007-116321 JF - Eos, Transactions, American Geophysical Union AU - Cutillo, Paula A AU - Ge, Shemin AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H11D EP - 0322 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Paleozoic KW - Death Valley National Park KW - Earth tides KW - observation wells KW - Nye County Nevada KW - Landers earthquake 1992 KW - ground water KW - aquifers KW - Devils Hole KW - water table KW - coseismic processes KW - springs KW - Ash Meadows KW - earthquakes KW - Nevada KW - Hector Mine earthquake 1999 KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51261583?accountid=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=Response+of+water+levels+in+Devils+Hole%2C+Death+Valley+National+Park%2C+Nevada%2C+to+atmospheric+loading%2C+Earth+tides%2C+and+earthquakes&rft.au=Cutillo%2C+Paula+A%3BGe%2C+Shemin%3BAnonymous&rft.aulast=Cutillo&rft.aufirst=Paula&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&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 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aquifers; Ash Meadows; coseismic processes; Death Valley National Park; Devils Hole; Earth tides; earthquakes; ground water; Hector Mine earthquake 1999; Landers earthquake 1992; Nevada; Nye County Nevada; observation wells; Paleozoic; springs; United States; water table ER - TY - JOUR T1 - Streamlining spacecraft observation response to volcanic activity detection using an autonomous sensor web of ground and space-based assets AN - 51241162; 2008-074557 JF - Eos, Transactions, American Geophysical Union AU - Chien, S AU - Davies, A G AU - Wright, R AU - Miklius, A AU - Flynn, L AU - Cichy, B AU - Frye, S AU - Shulman, S AU - Mandl, D AU - Grosvenor, S AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract V33C EP - 1469 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - networks KW - technology KW - monitoring KW - Quaternary KW - geologic hazards KW - data acquisition KW - tiltmeters KW - data processing KW - information management KW - data management KW - automated analysis KW - computer programs KW - Cenozoic KW - volcanism KW - eruptions KW - volcanoes KW - risk assessment KW - remote sensing KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51241162?accountid=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=Streamlining+spacecraft+observation+response+to+volcanic+activity+detection+using+an+autonomous+sensor+web+of+ground+and+space-based+assets&rft.au=Chien%2C+S%3BDavies%2C+A+G%3BWright%2C+R%3BMiklius%2C+A%3BFlynn%2C+L%3BCichy%2C+B%3BFrye%2C+S%3BShulman%2C+S%3BMandl%2C+D%3BGrosvenor%2C+S%3BAnonymous&rft.aulast=Chien&rft.aufirst=S&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&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 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - automated analysis; Cenozoic; computer programs; data acquisition; data management; data processing; eruptions; geologic hazards; information management; monitoring; networks; Quaternary; remote sensing; risk assessment; technology; tiltmeters; volcanism; volcanoes ER - TY - JOUR T1 - Chemical and isotopic compositions of thermal water related with possible ascending deep fluids in Kii Peninsula, SW Japan AN - 51235777; 2008-074765 JF - Eos, Transactions, American Geophysical Union AU - Morikawa, N AU - Kazahaya, K AU - Takahashi, H A AU - Inamura, A AU - Ohwada, M AU - Yasuhara, M AU - Takahashi, M AU - Ritchie, B E AU - Nagao, K AU - Sumino, H AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract V13A EP - 1442 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - P-waves KW - Ne-20 KW - Far East KW - oxygen KW - isotopes KW - halogens KW - mantle KW - elastic waves KW - stable isotopes KW - ground water KW - Kii Peninsula KW - noble gases KW - neon KW - velocity KW - springs KW - helium KW - Asia KW - mantle wedges KW - chlorine KW - meteoric water KW - concentration KW - body waves KW - Philippine Sea Plate KW - isotope ratios KW - alkali metals KW - subduction KW - sodium KW - thermal waters KW - southwestern Japan KW - plate tectonics KW - metals KW - hydrogen KW - brines KW - slabs KW - seismic waves KW - Honshu KW - He-4/He-3 KW - dehydration KW - hot springs KW - S-waves KW - Japan KW - crust KW - 02B:Hydrochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51235777?accountid=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=Chemical+and+isotopic+compositions+of+thermal+water+related+with+possible+ascending+deep+fluids+in+Kii+Peninsula%2C+SW+Japan&rft.au=Morikawa%2C+N%3BKazahaya%2C+K%3BTakahashi%2C+H+A%3BInamura%2C+A%3BOhwada%2C+M%3BYasuhara%2C+M%3BTakahashi%2C+M%3BRitchie%2C+B+E%3BNagao%2C+K%3BSumino%2C+H%3BAnonymous&rft.aulast=Morikawa&rft.aufirst=N&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&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 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - alkali metals; Asia; body waves; brines; chlorine; concentration; crust; dehydration; elastic waves; Far East; ground water; halogens; He-4/He-3; helium; Honshu; hot springs; hydrogen; isotope ratios; isotopes; Japan; Kii Peninsula; mantle; mantle wedges; metals; meteoric water; Ne-20; neon; noble gases; oxygen; P-waves; Philippine Sea Plate; plate tectonics; S-waves; seismic waves; slabs; sodium; southwestern Japan; springs; stable isotopes; subduction; thermal waters; velocity ER - TY - JOUR T1 - Geomorphology toolbox for assessing the potential effects of land-use change and management practices on stream form and integrity AN - 51232011; 2008-077291 JF - Eos, Transactions, American Geophysical Union AU - Raff, D A AU - Bledsoe, B P AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H11F EP - 0350 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - statistical analysis KW - regional planning KW - techniques KW - stormwater KW - decision-making KW - erosion features KW - biota KW - habitat KW - channelization KW - sediment yield KW - land management KW - fluvial features KW - streams KW - ecology KW - erodibility KW - discharge KW - slope stability KW - land use KW - 23:Geomorphology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51232011?accountid=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=Geomorphology+toolbox+for+assessing+the+potential+effects+of+land-use+change+and+management+practices+on+stream+form+and+integrity&rft.au=Raff%2C+D+A%3BBledsoe%2C+B+P%3BAnonymous&rft.aulast=Raff&rft.aufirst=D&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&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 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - biota; channelization; decision-making; discharge; ecology; erodibility; erosion features; fluvial features; habitat; land management; land use; regional planning; sediment yield; slope stability; statistical analysis; stormwater; streams; techniques ER - TY - JOUR T1 - The Watershed and River Systems Management Program; decision support for water- and environmental-resource management AN - 51230391; 2008-076881 JF - Eos, Transactions, American Geophysical Union AU - Leavesley, G AU - Markstrom, S AU - Frevert, D AU - Fulp, T AU - Zagona, E AU - Viger, R AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H33D EP - 0502 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - hydrology KW - WARSMP model KW - reservoirs KW - rivers and streams KW - data processing KW - watersheds KW - water management KW - prediction KW - pollution KW - ecosystems KW - decision-making KW - models KW - streamflow KW - runoff KW - data bases KW - basin management KW - water resources KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51230391?accountid=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=The+Watershed+and+River+Systems+Management+Program%3B+decision+support+for+water-+and+environmental-resource+management&rft.au=Leavesley%2C+G%3BMarkstrom%2C+S%3BFrevert%2C+D%3BFulp%2C+T%3BZagona%2C+E%3BViger%2C+R%3BAnonymous&rft.aulast=Leavesley&rft.aufirst=G&rft.date=2004-12-01&rft.volume=38&rft.issue=3&rft.spage=817&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - basin management; data bases; data processing; decision-making; ecosystems; hydrology; models; pollution; prediction; reservoirs; rivers and streams; runoff; streamflow; WARSMP model; water management; water resources; watersheds ER - TY - JOUR T1 - Absolute dating of desert varnish using portable X-ray fluorescence; calibration and testing AN - 51228815; 2008-077152 JF - Eos, Transactions, American Geophysical Union AU - Pingitore, N E AU - Lytle, F W AU - Rowley, P D AU - Ferris, D E AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract B33B EP - 0266 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - methods KW - eolian features KW - iron oxides KW - Basin and Range Province KW - calibration KW - Holocene KW - deserts KW - Cenozoic KW - laboratory studies KW - errors KW - dates KW - manganese oxides KW - absolute age KW - X-ray analysis KW - oxides KW - North America KW - experimental studies KW - Quaternary KW - X-ray fluorescence KW - Great Basin KW - Southwestern U.S. KW - measurement KW - rock varnish KW - testing KW - instruments KW - portable X-ray fluorescence KW - field studies KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51228815?accountid=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=Absolute+dating+of+desert+varnish+using+portable+X-ray+fluorescence%3B+calibration+and+testing&rft.au=Pingitore%2C+N+E%3BLytle%2C+F+W%3BRowley%2C+P+D%3BFerris%2C+D+E%3BAnonymous&rft.aulast=Pingitore&rft.aufirst=N&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&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 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - absolute age; Basin and Range Province; calibration; Cenozoic; dates; deserts; eolian features; errors; experimental studies; field studies; Great Basin; Holocene; instruments; iron oxides; laboratory studies; manganese oxides; measurement; methods; North America; oxides; portable X-ray fluorescence; Quaternary; rock varnish; Southwestern U.S.; testing; United States; X-ray analysis; X-ray fluorescence ER - TY - JOUR T1 - HydroSphere; fully-integrated, surface/subsurface numerical model for watershed analysis of hydrologic, water quality and sedimentation processes AN - 51228529; 2008-076830 JF - Eos, Transactions, American Geophysical Union AU - Matanga, G B AU - Nelson, K E AU - Sudicky, E AU - Therrien, R AU - Panday, S AU - McLaren, R AU - DeMarco, D AU - Gessford, L AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H32B EP - 03 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - water quality KW - dispersivity KW - erosion KW - watersheds KW - fluid dynamics KW - hydrosphere KW - irrigation KW - ground water KW - transport KW - ecology KW - hydrology KW - concentration KW - water supply KW - numerical models KW - three-dimensional models KW - drainage KW - surface water KW - sedimentation KW - pollution KW - mathematical models KW - advection KW - two-dimensional models KW - models KW - habitat KW - streamflow KW - saturation KW - risk assessment KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51228529?accountid=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=HydroSphere%3B+fully-integrated%2C+surface%2Fsubsurface+numerical+model+for+watershed+analysis+of+hydrologic%2C+water+quality+and+sedimentation+processes&rft.au=Matanga%2C+G+B%3BNelson%2C+K+E%3BSudicky%2C+E%3BTherrien%2C+R%3BPanday%2C+S%3BMcLaren%2C+R%3BDeMarco%2C+D%3BGessford%2C+L%3BAnonymous&rft.aulast=Matanga&rft.aufirst=G&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&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 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - advection; concentration; dispersivity; drainage; ecology; erosion; fluid dynamics; ground water; habitat; hydrology; hydrosphere; irrigation; mathematical models; models; numerical models; pollution; risk assessment; saturation; sedimentation; streamflow; surface water; three-dimensional models; transport; two-dimensional models; water quality; water supply; watersheds ER - TY - JOUR T1 - A novel indicator of ecosystem N status; DIN to DON ratio in riverine waters AN - 51091697; 2008-079312 JF - Eos, Transactions, American Geophysical Union AU - Williams, M W AU - Clow, D AU - Blett, T AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H53F EP - 05 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - water quality KW - human activity KW - surface water KW - rivers and streams KW - biomes KW - atmosphere KW - ecosystems KW - indicators KW - nitrogen KW - inorganic materials KW - organic compounds KW - riparian environment KW - nitrification KW - dissolved materials KW - nitrate ion KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51091697?accountid=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=A+novel+indicator+of+ecosystem+N+status%3B+DIN+to+DON+ratio+in+riverine+waters&rft.au=Williams%2C+M+W%3BClow%2C+D%3BBlett%2C+T%3BAnonymous&rft.aulast=Williams&rft.aufirst=M&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&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 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - atmosphere; biomes; dissolved materials; ecosystems; human activity; indicators; inorganic materials; nitrate ion; nitrification; nitrogen; organic compounds; riparian environment; rivers and streams; soils; surface water; water quality ER - TY - JOUR T1 - Monitoring climate variability and change in Northern Alaska; updates to the U.S. Geological Survey (USGS) climate and permafrost monitoring network AN - 51082679; 2008-081495 JF - Eos, Transactions, American Geophysical Union AU - Urban, F E AU - Clow, G D AU - Meares, D C AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract C13B EP - 0270 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - networks KW - survey organizations KW - permafrost KW - monitoring KW - annual variations KW - U. S. Geological Survey KW - government agencies KW - data processing KW - thawing KW - climate change KW - computer programs KW - Northern Alaska KW - Alaska KW - active layer KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51082679?accountid=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+climate+variability+and+change+in+Northern+Alaska%3B+updates+to+the+U.S.+Geological+Survey+%28USGS%29+climate+and+permafrost+monitoring+network&rft.au=Urban%2C+F+E%3BClow%2C+G+D%3BMeares%2C+D+C%3BAnonymous&rft.aulast=Urban&rft.aufirst=F&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&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 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - active layer; Alaska; annual variations; climate change; computer programs; data processing; government agencies; monitoring; networks; Northern Alaska; permafrost; survey organizations; thawing; U. S. Geological Survey; United States ER - TY - JOUR T1 - Writing abstracts; a basic approach AN - 50884171; 2005-026788 AB - I am writing this article in a state of irritation. I am irritated because I just read a Geophysics manuscript that left me (and fellow reviewers) with the unhappy feeling that the abstract was insufficient and needed to be redone. We gave specific suggestions and guidelines, which included Landes' useful and often-reprinted article (1951, 1966, 1990 AAPG Bulletin) and my more pedestrial TLE article (1993). I have reread those articles and, frankly, I cannot understand how after reading them authors continue to miss the point about abstacts. What's the problem? Abstracy writing is not a mystery! JF - Leading Edge (Tulsa, OK) AU - Mahrer, Kenneth D Y1 - 2004/12// PY - 2004 DA - December 2004 SP - 1246 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 23 IS - 12 SN - 1070-485X, 1070-485X KW - methods KW - geology KW - publications KW - regulations KW - technical writing KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50884171?accountid=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=Leading+Edge+%28Tulsa%2C+OK%29&rft.atitle=Writing+abstracts%3B+a+basic+approach&rft.au=Mahrer%2C+Kenneth+D&rft.aulast=Mahrer&rft.aufirst=Kenneth&rft.date=2004-12-01&rft.volume=23&rft.issue=12&rft.spage=1246&rft.isbn=&rft.btitle=&rft.title=Leading+Edge+%28Tulsa%2C+OK%29&rft.issn=1070485X&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1745-6592 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2005-01-01 N1 - PubXState - OK N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - geology; methods; publications; regulations; technical writing ER - TY - JOUR T1 - LA-MC-ICPMS determination of copper isotope ratios in turquoise from the Southwestern United States AN - 50859313; 2008-096943 JF - Eos, Transactions, American Geophysical Union AU - Evans, M J AU - Fayek, M AU - Riciputi, L AU - Anovitz, L AU - Hull, S AU - Mathien, F J AU - Milford, H AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract V51A EP - 0514 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - mineral deposits, genesis KW - laser methods KW - isotopes KW - copper KW - igneous rocks KW - mass spectra KW - Cu-63 KW - Cu-65 KW - metasomatism KW - Western U.S. KW - Cu-65/Cu-63 KW - hydrothermal alteration KW - spectra KW - geochemistry KW - Nevada KW - supergene processes KW - meteoric water KW - isotope ratios KW - laser ablation KW - phosphates KW - Southwestern U.S. KW - ICP mass spectra KW - intrusions KW - turquoise KW - metals KW - Arizona KW - crystal chemistry KW - Central America KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50859313?accountid=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=LA-MC-ICPMS+determination+of+copper+isotope+ratios+in+turquoise+from+the+Southwestern+United+States&rft.au=Evans%2C+M+J%3BFayek%2C+M%3BRiciputi%2C+L%3BAnovitz%2C+L%3BHull%2C+S%3BMathien%2C+F+J%3BMilford%2C+H%3BAnonymous&rft.aulast=Evans&rft.aufirst=M&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&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 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Arizona; Central America; copper; crystal chemistry; Cu-63; Cu-65; Cu-65/Cu-63; geochemistry; hydrothermal alteration; ICP mass spectra; igneous rocks; intrusions; isotope ratios; isotopes; laser ablation; laser methods; mass spectra; metals; metasomatism; meteoric water; mineral deposits, genesis; Nevada; phosphates; Southwestern U.S.; spectra; supergene processes; turquoise; United States; Western U.S. ER - TY - JOUR T1 - Aeolian environments observed by the Mars Exploration Rovers AN - 50461969; 2009-075155 JF - Eos, Transactions, American Geophysical Union AU - Sullivan, R J AU - Fike, D A AU - Golombek, Matthew P AU - Greeley, R AU - Grotzinger, J AU - Jerolmack, D AU - Landis, G AU - Malin, M AU - Soderblom, L AU - Squyres, S AU - Thompson, S AU - Watters, W AU - Whelley, P AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract P21B EP - 04 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - Meridiani Planum KW - Opportunity Rover KW - erosion KW - geotraverses KW - wind erosion KW - Mars KW - landing sites KW - Endurance Crater KW - Columbia Hills KW - terrestrial planets KW - Mars Exploration Rover KW - planets KW - surface features KW - Gusev Crater KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50461969?accountid=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=Aeolian+environments+observed+by+the+Mars+Exploration+Rovers&rft.au=Sullivan%2C+R+J%3BFike%2C+D+A%3BGolombek%2C+Matthew+P%3BGreeley%2C+R%3BGrotzinger%2C+J%3BJerolmack%2C+D%3BLandis%2C+G%3BMalin%2C+M%3BSoderblom%2C+L%3BSquyres%2C+S%3BThompson%2C+S%3BWatters%2C+W%3BWhelley%2C+P%3BAnonymous&rft.aulast=Sullivan&rft.aufirst=R&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&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 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Columbia Hills; Endurance Crater; erosion; geotraverses; Gusev Crater; landing sites; Mars; Mars Exploration Rover; Meridiani Planum; Opportunity Rover; planets; surface features; terrestrial planets; wind erosion ER - TY - JOUR T1 - New Approaches for Early Detection and Rapid Response to Invasive Plants in the United States1 AN - 21232409; 9076583 AB - Currently, the Federal Interagency Committee for the Management of Noxious and Exotic Weeds is leading a national effort to develop and implement a National Early Detection and Rapid Response System for Invasive Plants in the United States. Ultimately, the system will be part of an All Taxa Early Detection and Rapid Response System under the National Invasive Species Management Plan. The overall purpose of developing such a system for invasive plants is to provide a coordinated framework of public and private partners to more effectively address new invasive plants through: (1) early detection and reporting of suspected new plants to appropriate officials, (2) identification and vouchering of submitted specimens by designated botanists, (3) verification of suspected new state, regional, and national plant records, (4) archival of new records in designated regional and plant databases, (5) rapid assessment of confirmed new records, and (6) rapid response to new records that are determined to be invasive. Currently, the U.S. Geological Survey is cooperating with state and regional partner groups in New England, the Gulf Coast, and the West to develop and field-test elements and processes that were identified in the Conceptual Design Plan. Once fully implemented across the nation, the proposed system will provide an important second line of defense against invasive plants that complements federal efforts to prevent unwanted introductions at the ports of entry. Additional index words: Early detection, invasive plants, rapid assessment, rapid response. Abbreviations: EDRR, early detection and rapid response; FICMNEW, Federal Interagency Committee for the Management of Noxious and Exotic Weeds. JF - Weed Technology AU - Westbrooks, Randy G Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 1468 EP - 1471 PB - Weed Science Society of America VL - 18 IS - sp1 SN - 0890-037X, 0890-037X KW - Sustainability Science Abstracts KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21232409?accountid=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=Weed+Technology&rft.atitle=New+Approaches+for+Early+Detection+and+Rapid+Response+to+Invasive+Plants+in+the+United+States1&rft.au=Westbrooks%2C+Randy+G&rft.aulast=Westbrooks&rft.aufirst=Randy&rft.date=2004-12-01&rft.volume=18&rft.issue=sp1&rft.spage=1468&rft.isbn=&rft.btitle=&rft.title=Weed+Technology&rft.issn=0890037X&rft_id=info:doi/10.1614%2F0890-037X%282004%290182.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-12-01 N1 - Last updated - 2011-12-14 DO - http://dx.doi.org/10.1614/0890-037X(2004)018[1468:NAFEDA]2.0.CO;2 ER - TY - JOUR T1 - The estuarine chemistry and isotope systematics of U in the Amazon and Fly Rivers AN - 20999394; 7489939 AB - Natural concentrations of 238U and delta 234U values were determined in estuarine surface waters and pore waters of the Amazon and Fly (Papua New Guinea) Rivers to investigate U transport phenomena across river-dominated land-sea margins. Discharge from large, tropical rivers is a major source of dissolved and solid materials transported to the oceans, and are important in defining not only oceanic mass budgets, but also terrestrial weathering rates. On the Amazon shelf, salinity-property plots of dissolved organic carbon, pH and total suspended matter revealed two vastly contrasting water masses that were energetically mixed. In this mixing zone, the distribution of uranium was highly non-conservative and exhibited extensive removal from the water column. Uranium removal was most pronounced within a salinity range of 0-16.6, and likely the result of scavenging and flocculation reactions with inorganic (i.e., Fe/Mn oxides) and organic colloids/particles. Removal of uranium may also be closely coupled to exchange and resuspension processes at the sediment/water interface. An inner-shelf pore water profile indicated the following diagenetic processes: extensive (1m) zones of Fe(III)-and, to a lesser degree, Mn(IV)-reduction in the absence of significant S(II) concentrations appeared to facilitate the formation of various authigenic minerals (e.g., siderite, rhodocrosite and uraninite). The pore water dissolved 238U profile co-varied closely with Mn(II). Isotopic variations as evidenced in delta 234U pore waters values from this site revealed information on the origin and history of particulate uranium. Only after a depth of about 1m did the delta 234U value approach unity (secular equilibrium), denoting a residual lattice bound uranium complex that is likely an upper-drainage basin weathering product. This suggests that the enriched delta 234U values represent a riverine surface complexation product that is actively involved in Mn-Fe diagenetic cycles and surface complexation reactions. In the Fly River estuary, 238U appears to exhibit a reasonably conservative distribution as a function of salinity. The absence of observed U removal does not necessarily imply non-reactivity, but instead may record an integration of concurrent U removal and release processes. There is not a linear correlation between delta 234U vs. 1/238U that would imply simple two component mixing. It is likely that resuspension of bottom sediments, prolonged residence times in the lower reaches of the Fly River, and energetic particle-colloid interactions contribute to the observed estuarine U distribution. The supply of uranium discharged from humid, tropical river systems to the sea appears to be foremost influenced by particle/water interactions that are ultimately governed by the particular physiographic and hydrologic characteristics of an estuary. JF - Continental Shelf Research AU - Swarzenski, Peter AU - Campbell, Pamela AU - Porcelli, Don AU - McKee, Brent AD - Center for Coastal Geology, US Geological Survey, 600 4th Street South, St. Petersburg, FL 33705, USA, pswarzen@usgs.gov Y1 - 2004/12// PY - 2004 DA - December 2004 SP - 2357 EP - 2372 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl] VL - 24 IS - 19 SN - 0278-4343, 0278-4343 KW - Aqualine Abstracts; Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Oceanic Abstracts KW - Radionuclides KW - Estuarine transport KW - Porewater KW - Scavenging KW - Turbidity maximum KW - ASW, Atlantic, Amazon Shelf KW - Correlations KW - Estuarine sedimentation KW - Mixing KW - Resuspended sediments KW - Salinity KW - River systems KW - Uranium KW - Papua New Guinea, Fly R. KW - Brackishwater environment KW - Weathering KW - Rivers KW - Water masses KW - Suspended Sediments KW - Estuaries KW - River discharge KW - Interstitial Water KW - Mass budget KW - South America, Amazon R. KW - Profiles KW - ISEW, Papua New Guinea KW - Diagenesis KW - AQ 00001:Water Resources and Supplies KW - SW 0835:Streamflow and runoff KW - O 3050:Sediment Dynamics KW - M2 551.468:Coastal Oceanography (551.468) KW - Q2 09146:TSD distribution, water masses and circulation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20999394?accountid=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=Continental+Shelf+Research&rft.atitle=The+estuarine+chemistry+and+isotope+systematics+of+U+in+the+Amazon+and+Fly+Rivers&rft.au=Swarzenski%2C+Peter%3BCampbell%2C+Pamela%3BPorcelli%2C+Don%3BMcKee%2C+Brent&rft.aulast=Swarzenski&rft.aufirst=Peter&rft.date=2004-12-01&rft.volume=24&rft.issue=19&rft.spage=2357&rft.isbn=&rft.btitle=&rft.title=Continental+Shelf+Research&rft.issn=02784343&rft_id=info:doi/10.1016%2Fj.csr.2004.07.025 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-08-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Resuspended sediments; Water masses; Uranium; Estuaries; River discharge; Brackishwater environment; Weathering; Estuarine sedimentation; Diagenesis; Rivers; River systems; Correlations; Mass budget; Suspended Sediments; Salinity; Profiles; Interstitial Water; Mixing; ASW, Atlantic, Amazon Shelf; South America, Amazon R.; Papua New Guinea, Fly R.; ISEW, Papua New Guinea DO - http://dx.doi.org/10.1016/j.csr.2004.07.025 ER - TY - JOUR T1 - Dependable Water Supplies from Valley Alluvium in Arid Regions AN - 20606915; 6430054 AB - Reliable sources of high-quality water for domestic use are much needed in arid regions. Valley alluvium, coarse sand and gravel deposited by streams and rivers, provides an ideal storage medium for water in many regions of the world. However, river sediments will not accumulate in a valley without a natural or artificial barrier to slow the water. Sediments will deposit upstream of a barrier dam and form an alluvial deposit of relatively well-sorted material. The alluvium then acts as both an underground water-supply reservoir and a water filter, yielding a constant flow of high-quality water. Trap dams that store water in alluvial sediments and slowly release the filtered water represent an appropriate and inexpensive technology for combating desertification and mitigating the effects of drought at the community level. Small trap dams may be built as a community project using local materials and local labor. JF - Environmental Monitoring and Assessment AU - Van Haveren, Bruce P AD - U.S. Bureau of Land Management, Denver, Colorado, U.S.A., bvanhave@blm.gov Y1 - 2004/12// PY - 2004 DA - December 2004 SP - 259 EP - 266 PB - Springer-Verlag (Heidelberg), Tiergartenstrasse 17 Heidelberg 69121 Germany, [mailto:subscriptions@springer.de] VL - 99 IS - 1-3 SN - 0167-6369, 0167-6369 KW - Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Meteorological & Geoastrophysical Abstracts; Sustainability Science Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Alluvial Deposits KW - Barriers KW - Water reservoirs KW - Arid environments KW - Water Supply KW - Water supplies KW - Labour KW - Reservoirs KW - Droughts KW - Dam Effects KW - water filters KW - Rivers KW - Environmental monitoring KW - valleys KW - Storage KW - Alluvium KW - Monitoring KW - Desertification KW - Fluvial Sediments KW - Drought KW - Streams KW - Alluvial deposits KW - Valley Storage KW - mitigation KW - upstream KW - Assessments KW - Sand KW - Dams KW - Gravel KW - Water filters KW - Labor KW - Sediments KW - Water supply KW - Filters KW - Dam control KW - AQ 00001:Water Resources and Supplies KW - P 2000:FRESHWATER POLLUTION KW - M3 1010:Issues in Sustainable Development KW - SW 4010:Techniques of planning KW - M2 556.15:Water Storage (556.15) KW - Q5 08522:Protective measures and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20606915?accountid=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+Monitoring+and+Assessment&rft.atitle=Dependable+Water+Supplies+from+Valley+Alluvium+in+Arid+Regions&rft.au=Van+Haveren%2C+Bruce+P&rft.aulast=Van+Haveren&rft.aufirst=Bruce&rft.date=2004-12-01&rft.volume=99&rft.issue=1-3&rft.spage=259&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/10.1007%2Fs10661-004-4031-5 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-07-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Labour; Water reservoirs; Barriers; Water filters; Dams; Droughts; Alluvial deposits; Water supply; Rivers; Desertification; Dam control; Drought; Reservoirs; valleys; Arid environments; Streams; Water supplies; Sediments; Storage; upstream; mitigation; Sand; water filters; Alluvial Deposits; Gravel; Fluvial Sediments; Water Supply; Labor; Filters; Valley Storage; Assessments; Alluvium; Monitoring; Dam Effects DO - http://dx.doi.org/10.1007/s10661-004-4031-5 ER - TY - JOUR T1 - Accumulation of PCB Congeners in Nestling Tree Swallows (Tachycineta bicolor) on the Hudson River, New York AN - 20552727; 6130502 AB - Tree swallows (Tachycineta bicolor) were used as a sentinel species to monitor the contamination and bioavailability of polychlorinated biphenyls (PCBs) in the Hudson River watershed. Several tree swallow nest box colonies around and downstream from Hudson Falls, NY, were studied. Tree swallow eggs, adults, and 5-, 10-, and 15-day-old nestlings were collected and analyzed for 103 PCB congeners. Emergent insects collected by net (primarily Odonata) or as a food bolus (primarily Diptera) taken from the mouths of adult tree swallows returning to the nest were analyzed in the same manner. Total PCB concentrations (wet weight) in eggs from two contaminated sites ranged from 9000 to 25 000 ng/g and accumulated to 32 000 and 96 000 ng/g in 15-day-old nestling at two contaminated sites. The congener patterns of PCBs in eggs, nestlings, and adults were compared to those found in emergent insects (Odonata and Diptera) using principal components analysis. The PCB patterns of the biota differed from that of Aroclor technical mixtures. PCB patterns in adult tree swallows were similar to those in eggs, while the patterns in dietary insects were similar to nestling tree swallows. Uptake rate constants were determined for tree swallow nestlings and compared between the two contaminated sites. The estimated PCB congener uptake rate constants were 0.008-0.02 d super(-1) based on uptake in nestlings until day 15 post-hatch. The rate constants were comparable between the two study areas and may be used to predict nestling contamination at other locations. Our studies confirm the utility of nestling tree swallows to evaluate localized PCB contamination. JF - Environmental Science & Technology AU - Echols, K R AU - Tillitt, DE AU - Nichols, J W AU - Secord, AL AU - McCarty, J P AD - U.S. Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, MO 65201, USA, dtillitt@usgs.gov Y1 - 2004/12/01/ PY - 2004 DA - 2004 Dec 01 SP - 6240 EP - 6246 VL - 38 IS - 23 SN - 0013-936X, 0013-936X KW - Tree swallow KW - Toxicology Abstracts; Pollution Abstracts KW - Trees KW - Food contamination KW - Watersheds KW - Dietary intake KW - Eggs KW - USA, New York KW - Bioavailability KW - Biota KW - Bioaccumulation KW - USA, New Jersey, Hudson R. KW - PCB compounds KW - USA, New York, Hudson R. KW - PCB KW - Tachycineta bicolor KW - P 2000:FRESHWATER POLLUTION KW - X 24156:Environmental impact UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20552727?accountid=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+Science+%26+Technology&rft.atitle=Accumulation+of+PCB+Congeners+in+Nestling+Tree+Swallows+%28Tachycineta+bicolor%29+on+the+Hudson+River%2C+New+York&rft.au=Echols%2C+K+R%3BTillitt%2C+DE%3BNichols%2C+J+W%3BSecord%2C+AL%3BMcCarty%2C+J+P&rft.aulast=Echols&rft.aufirst=K&rft.date=2004-12-01&rft.volume=38&rft.issue=23&rft.spage=6240&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes049785p LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-05-01 N1 - SuppNotes - Special Issue: Ecotoxicology. N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Bioavailability; Bioaccumulation; Trees; Watersheds; Food contamination; Dietary intake; Eggs; PCB; Biota; PCB compounds; Tachycineta bicolor; USA, New Jersey, Hudson R.; USA, New York, Hudson R.; USA, New York DO - http://dx.doi.org/10.1021/es049785p ER - TY - JOUR T1 - Protecting Endangered Plant Species from Displacement by Invasive Plants on Maui, Hawaii1 AN - 20417277; 9076584 AB - The Hawaiian island of Maui, with highly diverse habitats and 80 federally endangered plant species, provides a microcosm for addressing the threats of plant invasions to endemic biological diversity through partnerships for research and management. An evolving vision of what is needed involves an accelerated, balanced program involving exclusion of potential new invaders, early detection and rapid response, biological control, control to protect local populations, and public education. Additional index words: Biological control, Clidemia hirta, early detection, Hedychium gardnerianum, interagency cooperation, Miconia calvescens, Psidium cattleianum, public education, rapid response, weed exclusion. Abbreviation: MISC, Maui Invasive Species Committee. JF - Weed Technology AU - Loope, Lloyd AU - Starr, Forest AU - Starr, Kim Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 1472 EP - 1474 PB - Weed Science Society of America VL - 18 IS - sp1 SN - 0890-037X, 0890-037X KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Sustainability Science Abstracts KW - Biological control KW - Weeds KW - Clidemia hirta KW - Plant protection KW - Psidium cattleianum KW - Cooperation KW - Hedychium KW - Biological diversity KW - Habitat KW - Islands KW - Vision KW - Miconia KW - Invasions KW - Microcosms KW - Introduced species KW - M3 1010:Issues in Sustainable Development KW - A 01370:Biological Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20417277?accountid=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=Weed+Technology&rft.atitle=Protecting+Endangered+Plant+Species+from+Displacement+by+Invasive+Plants+on+Maui%2C+Hawaii1&rft.au=Loope%2C+Lloyd%3BStarr%2C+Forest%3BStarr%2C+Kim&rft.aulast=Loope&rft.aufirst=Lloyd&rft.date=2004-12-01&rft.volume=18&rft.issue=sp1&rft.spage=1472&rft.isbn=&rft.btitle=&rft.title=Weed+Technology&rft.issn=0890037X&rft_id=info:doi/10.1614%2F0890-037X%282004%290182.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-05-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Miconia; Clidemia hirta; Hedychium; Psidium cattleianum; Biological control; Weeds; Plant protection; Islands; Introduced species; Habitat; Cooperation; Biological diversity; Microcosms; Vision; Invasions DO - http://dx.doi.org/10.1614/0890-037X(2004)018[1472:PEPSFD]2.0.CO;2 ER - TY - JOUR T1 - Enhancing fecal coliform total maximum daily load models through bacterial source tracking AN - 20150546; 6142654 AB - Surface water impairment by fecal coliform bacteria is a water quality issue of national scope and importance. In Virginia, more than 400 stream and river segments are on the Commonwealth's 2002 303(d) list because of fecal coliform impairment. Total maximum daily loads (TMDLs) will be developed for most of these listed streams and rivers. Information regarding the major fecal coliform sources that impair surface water quality would enhance the development of effective watershed models and improve TMDLs. Bacterial source tracking (BST) is a recently developed technology for identifying the sources of fecal coliform bacteria and it may be helpful in generating improved TMDLs. Bacterial source tracking was performed, watershed models were developed, and TMDLs were prepared for three streams (Accotink Creek, Christians Creek, and Blacks Run) on Virginia's 303(d) list of impaired waters. Quality assurance of the BST work suggests that these data adequately describe the bacteria sources that are impairing these streams. Initial comparison of simulated bacterial sources with the observed BST data indicated that the fecal coliform sources were represented inaccurately in the initial model simulation. Revised model simulations (based on BST data) appeared to provide a better representation of the sources of fecal coliform bacteria in these three streams. The coupled approach of incorporating BST data into the fecal coliform transport model appears to reduce model uncertainty and should result in an improved TMDL. JF - Journal of the American Water Resources Association AU - Hyer, KE AU - Moyer, D L AD - U.S. Geological Survey, 1730 East Parham Road, Richmond, Virginia 23228, USA, kenhyer@usgs.gov Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 1511 EP - 1526 VL - 40 IS - 6 SN - 1093-474X, 1093-474X KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - water quality KW - Quality Assurance KW - Water resources KW - Surface Water KW - Microbial contamination KW - Watersheds KW - Water quality KW - Biological pollutants KW - Modelling KW - Rivers KW - Water Quality KW - USA, Virginia KW - Model Studies KW - Quality control KW - Pollution monitoring KW - Surface water KW - Quality assurance KW - Streams KW - Models KW - Tracers KW - Bacteria KW - Coliforms KW - Fecal coliforms KW - Data processing KW - Simulation KW - Tracking KW - Q5 08503:Characteristics, behavior and fate KW - A 01450:Environmental Pollution & Waste Treatment KW - P 2000:FRESHWATER POLLUTION KW - SW 3010:Identification of pollutants KW - AQ 00002:Water Quality KW - J 02450:Ecology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20150546?accountid=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=Enhancing+fecal+coliform+total+maximum+daily+load+models+through+bacterial+source+tracking&rft.au=Hyer%2C+KE%3BMoyer%2C+D+L&rft.aulast=Hyer&rft.aufirst=KE&rft.date=2004-12-01&rft.volume=40&rft.issue=6&rft.spage=1511&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 - 2005-06-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Quality assurance; Water resources; Biological pollutants; Microbial contamination; Water quality; Watersheds; Tracking; Modelling; Rivers; Fecal coliforms; Data processing; Surface water; Quality control; Streams; Models; Pollution monitoring; Bacteria; Tracers; water quality; Simulation; Coliforms; Water Quality; Quality Assurance; Surface Water; Model Studies; USA, Virginia ER - TY - JOUR T1 - A hierarchical spatial model of avian abundance with application to Cerulean Warblers AN - 19940400; 6142623 AB - Surveys collecting count data are the primary means by which abundance is indexed for birds. These counts are confounded, however, by nuisance effects including observer effects and spatial correlation between counts. Current methods poorly accommodate both observer and spatial effects because modeling these spatially autocorrelated counts within a hierarchical framework is not practical using standard statistical approaches. We propose a Bayesian approach to this problem and provide as an example of its implementation a spatial model of predicted abundance for the Cerulean Warbler (Dendroica cerulea) in the Prairie-Hardwood Transition of the upper midwestern United States. We used an overdispersed Poisson regression with fixed and random effects, fitted by Markov chain Monte Carlo methods. We used 21 years of North American Breeding Bird Survey counts as the response in a loglinear function of explanatory variables describing habitat, spatial relatedness, year effects, and observer effects. The model included a conditional autoregressive term representing potential correlation between adjacent route counts. Categories of explanatory habitat variables in the model included land cover composition and configuration, climate, terrain heterogeneity, and human influence. The inherent hierarchy in the model was from counts occurring, in part, as a function of observers within survey routes within years. We found that the percentage of forested wetlands, an index of wetness potential, and an interaction between mean annual precipitation and deciduous forest patch size best described Cerulean Warbler abundance. Based on a map of relative abundance derived from the posterior parameter estimates, we estimated that only 15% of the species' population occurred on federal land, necessitating active engagement of public landowners and state agencies in the conservation of the breeding habitat for this species. Models of this type can be applied to any data in which the response is counts, such as animal counts, activity (e.g., nest) counts, or species richness. The most noteworthy practical application of this spatial modeling approach is the ability to map relative species abundance. The functional relationships that we elucidated for the Cerulean Warbler provide a basis for the development of management programs and may serve to focus management and monitoring on areas and habitat variables important to Cerulean Warblers. JF - Ecological Applications AU - Thogmartin, W E AU - Sauer, J R AU - Knutson, M G AD - U.S. Geological Survey Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, Wisconsin 54603-1223 USA, wthogmartin@usgs.gov Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 1766 EP - 1779 VL - 14 IS - 6 SN - 1051-0761, 1051-0761 KW - Cerulean warbler KW - ASFA 1: Biological Sciences & Living Resources; Sustainability Science Abstracts; Ecology Abstracts KW - Monte Carlo simulation KW - Wildlife management KW - Rainfall KW - deciduous forests KW - Ecological distribution KW - Abundance KW - Statistical analysis KW - nests KW - spatial distribution KW - breeding KW - species richness KW - Wetlands KW - Dendroica cerulea KW - Biological surveys KW - Environmental monitoring KW - Mathematical models KW - Meristic counts KW - Climate KW - relative abundance KW - Surveys KW - Habitat KW - Aves KW - Animal morphology KW - USA KW - Conservation KW - Governments KW - forested wetlands KW - abundance KW - M3 1010:Issues in Sustainable Development KW - D 04003:Modeling, mathematics, computer applications KW - Q1 08485:Species interactions: pests and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19940400?accountid=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=A+hierarchical+spatial+model+of+avian+abundance+with+application+to+Cerulean+Warblers&rft.au=Thogmartin%2C+W+E%3BSauer%2C+J+R%3BKnutson%2C+M+G&rft.aulast=Thogmartin&rft.aufirst=W&rft.date=2004-12-01&rft.volume=14&rft.issue=6&rft.spage=1766&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 - 2005-05-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Biological surveys; Animal morphology; Ecological distribution; Meristic counts; Climate; Statistical analysis; Governments; Wetlands; Wildlife management; Mathematical models; Abundance; Surveys; Monte Carlo simulation; deciduous forests; Rainfall; relative abundance; nests; Habitat; Aves; spatial distribution; breeding; species richness; Conservation; abundance; forested wetlands; Dendroica cerulea; USA ER - TY - JOUR T1 - Bioturbation depths, rates and processes in Massachusetts Bay sediments inferred from modeling of super(2) super(1) super(0)Pb and super(2) super(3) super(9) super(+) super(2) super(4) super(0)Pu profiles AN - 19929563; 6158577 AB - Profiles of super(2) super(1) super(0)Pb and super(2) super(3) super(9) super(+) super(2) super(4) super(0)Pu from sediment cores collected throughout Massachusetts Bay (water depths of 36-192m) are interpreted with the aid of a numerical sediment-mixing model to infer bioturbation depths, rates and processes. The nuclide data suggest extensive bioturbation to depths of 25-35cm. Roughly half the cores have super(2) super(1) super(0)Pb and super(2) super(3) super(9) super(+) super(2) super(4) super(0)Pu profiles that decrease monotonically from the surface and are consistent with biodiffusive mixing. Bioturbation rates are reasonably well constrained by these profiles and vary from ~0.7 to ~40cm super(2)yr super(-) super(1). As a result of this extensive reworking, however, sediment ages cannot be accurately determined from these radionuclides and only upper limits on sedimentation rates (of ~0.3cmyr super(-) super(1)) can be inferred. The other half of the radionuclide profiles are characterized by subsurface maxima in each nuclide, which cannot be reproduced by biodiffusive mixing models. A numerical model is used to demonstrate that mixing caused by organisms that feed at the sediment surface and defecate below the surface can cause the subsurface maxima, as suggested by previous work. The deep penetration depths of excess super(2) super(1) super(0)Pb and super(2) super(3) super(9) super(+) super(2) super(4) super(0)Pu suggest either that the organisms release material over a range of >15cm depth or that biodiffusive mixing mediated by other organisms is occurring at depth. Additional constraints from surficial sediment super(2) super(3) super(4)Th data suggest that in this half of the cores, the vast majority of the present-day flux of recent, nuclide-bearing material to these core sites is transported over a timescale of a month or more to a depth of a few centimeters below the sediment surface. As a consequence of the complex mixing processes, surface sediments include material spanning a range of ages and will not accurately record recent changes in contaminant deposition. JF - Estuarine, Coastal and Shelf Science AU - Crusius, J AU - Bothner, M H AU - Sommerfield, C K AD - University of Delaware, College of Marine Studies, Lewes, DE 19958, USA, jcrusius@usgs.gov Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 643 EP - 655 VL - 61 IS - 4 SN - 0272-7714, 0272-7714 KW - Pollution Abstracts; Oceanic Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Age KW - Mixing KW - Lead KW - Pollutants KW - Cores KW - Water Depth KW - Plutonium isotopes KW - Sediment Contamination KW - Sedimentation KW - Bioturbation KW - Bays KW - Modelling KW - Sedimentation Rates KW - Marine KW - Sediment pollution KW - Plutonium KW - Mathematical models KW - USA, Massachusetts, Massachusetts Bay KW - Sediments KW - Model Studies KW - Profiles KW - water depth KW - ANW, USA, Massachusetts, Massachusetts Bay KW - Radioisotopes KW - Deposition KW - Sediment mixing KW - Lead isotopes KW - Fluctuations KW - bioturbation KW - mixing processes KW - Feeds KW - O 1070:Ecology/Community Studies KW - Q1 08462:Benthos KW - Q2 09264:Sediments and sedimentation 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/19929563?accountid=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=Bioturbation+depths%2C+rates+and+processes+in+Massachusetts+Bay+sediments+inferred+from+modeling+of+super%282%29+super%281%29+super%280%29Pb+and+super%282%29+super%283%29+super%289%29+super%28%2B%29+super%282%29+super%284%29+super%280%29Pu+profiles&rft.au=Crusius%2C+J%3BBothner%2C+M+H%3BSommerfield%2C+C+K&rft.aulast=Crusius&rft.aufirst=J&rft.date=2004-12-01&rft.volume=61&rft.issue=4&rft.spage=643&rft.isbn=&rft.btitle=&rft.title=Estuarine%2C+Coastal+and+Shelf+Science&rft.issn=02727714&rft_id=info:doi/10.1016%2Fj.ecss.2004.07.005 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-04-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Plutonium isotopes; Sediment mixing; Lead isotopes; Bioturbation; Sediments; Modelling; Sediment pollution; Age; Mathematical models; water depth; Radioisotopes; Sedimentation; bioturbation; mixing processes; Bays; Sedimentation Rates; Plutonium; Mixing; Lead; Model Studies; Cores; Pollutants; Profiles; Water Depth; Sediment Contamination; Deposition; Fluctuations; Feeds; ANW, USA, Massachusetts, Massachusetts Bay; USA, Massachusetts, Massachusetts Bay; Marine DO - http://dx.doi.org/10.1016/j.ecss.2004.07.005 ER - TY - JOUR T1 - Cytochrome P450 Activity in Green Frogs (Rana clamitans melanota) Exposed to Water and Sediments in the Fox River and Green Bay, Wisconsin, USA AN - 19425866; 6473439 JF - Bulletin of Environmental Contamination and Toxicology AU - Jung, R E AU - Karasov, W H AU - Melancon, MJ AD - USGS Patuxent Wildlife Research Center, 12100 Beech Forest Road, Laurel, MD 20708, United States Y1 - 2004/12// PY - 2004 DA - December 2004 SP - 955 EP - 962 VL - 73 IS - 6 SN - 0007-4861, 0007-4861 KW - Aqualine Abstracts; Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Toxicology Abstracts; Water Resources Abstracts KW - Cytochromes KW - Contamination KW - Amphibiotic species KW - Fluvial Sediments KW - Pollution effects KW - Freshwater KW - USA, Wisconsin KW - USA, Washington KW - Lakes KW - Frogs KW - Toxicology KW - Rivers KW - Sediment pollution KW - USA, Wisconsin, Fox R. KW - Toxicity KW - USA, Wisconsin, Green Bay KW - Water pollution KW - Sediments KW - Cytochrome KW - Water Pollution Effects KW - Rana clamitans melanota KW - Cytochrome P450 KW - X 24240:Miscellaneous KW - P 2000:FRESHWATER POLLUTION 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/19425866?accountid=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=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.atitle=Cytochrome+P450+Activity+in+Green+Frogs+%28Rana+clamitans+melanota%29+Exposed+to+Water+and+Sediments+in+the+Fox+River+and+Green+Bay%2C+Wisconsin%2C+USA&rft.au=Jung%2C+R+E%3BKarasov%2C+W+H%3BMelancon%2C+MJ&rft.aulast=Jung&rft.aufirst=R&rft.date=2004-12-01&rft.volume=73&rft.issue=6&rft.spage=955&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+Environmental+Contamination+and+Toxicology&rft.issn=00074861&rft_id=info:doi/10.1016%2Fj.chemosphere.2003.08.015 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-02-01 N1 - Last updated - 2016-12-21 N1 - SubjectsTermNotLitGenreText - Rivers; Cytochromes; Lakes; Amphibiotic species; Toxicology; Cytochrome P450; Sediments; Sediment pollution; Cytochrome; Pollution effects; Water pollution; Frogs; Contamination; Fluvial Sediments; Water Pollution Effects; Toxicity; Rana clamitans melanota; USA, Washington; USA, Wisconsin, Fox R.; USA, Wisconsin; USA, Wisconsin, Green Bay; Freshwater DO - http://dx.doi.org/10.1007/s00128-004-0519-5 ER - TY - JOUR T1 - Predicting the Thermal Effects of Dam Removal on the Klamath River AN - 19420785; 6430259 AB - The Klamath River once supported large runs of anadromous salmonids. Water temperature associated with multiple mainstem hydropower facilities might be one of many factors responsible for depressing Klamath salmon stocks. We combined a water quantity model and a water quality model to predict how removing the series of dams below Upper Klamath Lake might affect water temperatures, and ultimately fish survival, in the spawning and rearing portions of the mainstem Klamath. We calibrated the water quantity and quality models and applied them for the hydrometeorological conditions during a 40-year postdam period. Then, we hypothetically removed the dams and their impoundments from the models and reestimated the river's water temperatures. The principal thermal effect of dam and reservoir removal would be to restore the timing (phase) of the river's seasonal thermal signature by shifting it approximately 18 days earlier in the year, resulting in river temperatures that more rapidly track ambient air temperatures. Such a shift would likely cool thermal habitat conditions for adult fall chinook (Oncorhynchus tshawytscha) during upstream migration and benefit mainstem spawning. By contrast, spring and early summer temperatures could be warmer without dams, potentially harming chinook rearing and outmigration in the mainstem. Dam removal might affect the river's thermal regime during certain conditions for over 200 km of the mainstem. JF - Environmental Management AU - Bartholow, John M AU - Campbell, Sharon G AU - Flug, Marshall AD - US Geological Survey, 2150 Centre Avenue, Bldg. C, Fort Collins, Colorado, 80526-8118, USA, John_Bartholow@USGS.gov Y1 - 2004/12// PY - 2004 DA - December 2004 SP - 856 EP - 874 PB - Springer-Verlag, Life Science Journals, 175 Fifth Ave. New York NY 10010 USA, [mailto:orders@springer-ny.com] VL - 34 IS - 6 SN - 0364-152X, 0364-152X KW - ASFA 3: Aquatic Pollution & Environmental Quality; Meteorological & Geoastrophysical Abstracts; ASFA Aquaculture Abstracts; Ecology Abstracts; Pollution Abstracts; Water Resources Abstracts; Sustainability Science Abstracts KW - Reservoir KW - Water reservoirs KW - Water Temperature KW - Anadromous species KW - Water Supply KW - Freshwater KW - Water quality KW - Oncorhynchus tshawytscha KW - Water temperatures KW - Lakes KW - USA, Oregon KW - Seasonal variations KW - Reservoirs KW - Dam Effects KW - Fish culture KW - Rivers KW - Summer temperatures KW - Habitat KW - Model Studies KW - Hydrometeorological research KW - Impoundments KW - River temperatures KW - USA, Oregon, Upper Klamath L. KW - Environment management KW - USA, California, Klamath R. KW - Water quality models KW - Environmental factors KW - Air temperature KW - Sulfur dioxide KW - Dams KW - Anadromous migrations KW - USA, Oregon, Klamath L. KW - Temperature effects KW - Temperature KW - Spawning KW - Dam control KW - River water KW - Freshwater aquaculture KW - D 04700:Management KW - M3 1010:Issues in Sustainable Development KW - P 2000:FRESHWATER POLLUTION KW - SW 3030:Effects of pollution KW - Q3 08588:Effects of Aquaculture on the Environment KW - M2 556.15:Water Storage (556.15) KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19420785?accountid=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=Predicting+the+Thermal+Effects+of+Dam+Removal+on+the+Klamath+River&rft.au=Bartholow%2C+John+M%3BCampbell%2C+Sharon+G%3BFlug%2C+Marshall&rft.aulast=Bartholow&rft.aufirst=John&rft.date=2004-12-01&rft.volume=34&rft.issue=6&rft.spage=856&rft.isbn=&rft.btitle=&rft.title=Environmental+Management&rft.issn=0364152X&rft_id=info:doi/10.1007%2Fs00267-004-0269-5 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-02-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Temperature effects; Rivers; Reservoir; Water reservoirs; Anadromous species; Water quality; Environmental factors; Air temperature; River water; Dams; Impoundments; Anadromous migrations; Freshwater aquaculture; Fish culture; Lakes; Sulfur dioxide; Habitat; Reservoirs; Environment management; Seasonal variations; Hydrometeorological research; Dam control; River temperatures; Summer temperatures; Water quality models; Water temperatures; Temperature; Water Temperature; Water Supply; Spawning; Dam Effects; Model Studies; Oncorhynchus tshawytscha; USA, California, Klamath R.; USA, Oregon; USA, Oregon, Upper Klamath L.; USA, Oregon, Klamath L.; Freshwater DO - http://dx.doi.org/10.1007/s00267-004-0269-5 ER - TY - JOUR T1 - Zinc and Lead Poisoning in Wild Birds in the Tri-State Mining District (Oklahoma, Kansas, and Missouri) AN - 19415215; 6382033 AB - The Tri-State Mining District (Oklahoma, Kansas, and Missouri) is contaminated with Pb, Cd, and Zn from mining, milling and smelting. Metals have been dispersed heterogeneously throughout the District in the form of milled mine waste ('chat'), as flotation tailings and from smelters as aerial deposition or slag. This study was conducted to determine if the habitat has been contaminated to the extent that the assessment populations of wild birds are exposed to toxic concentrations of metals. American robins (Turdus migratorius), northern cardinals (Cardinalis cardinalis), and waterfowl had increased Pb tissue concentrations (p 50% in red blood cells in these birds (p < 0.05). Several birds had tissue concentrations of Pb that have been associated with impaired biological functions and external signs of poisoning. Cadmium was increased in kidneys of songbirds (p < 0.05), but no proximal tubule cell necrosis associated with Cd poisoning was observed. Zinc concentrations in liver and kidney of waterfowl were significantly higher (p < 0.05) than reference values. The increased environmental concentrations of Zn associated with mining in the District accounted for the pancreatitis previously observed in five waterfowl from the District. The District is the first site at which free-flying wild birds have been found to be suffering severe effects of Zn poisoning. JF - Archives of Environmental Contamination and Toxicology AU - Beyer, W N AU - Dalgarn, J AU - Dudding, S AU - French, J B AU - Mateo, R AU - Miesner, J AU - Sileo, L AU - Spann, J AD - United States Geological Survey, BARC-EAST, 10300 Baltimore Ave., Beltsville, Maryland, 20705, USA, nelson_beyer@usgs.gov Y1 - 2004/12// PY - 2004 DA - December 2004 SP - 108 EP - 117 PB - Springer-Verlag, Life Science Journals, 175 Fifth Ave. New York NY 10010 USA, [mailto:orders@springer-ny.com] VL - 48 IS - 1 SN - 0090-4341, 0090-4341 KW - American robin KW - Birds KW - Northern cardinal KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Aqualine Abstracts; Toxicology Abstracts KW - Tissues KW - Contamination KW - Heavy metals KW - Pancreas KW - Toxicity tests KW - Lead KW - Exposure KW - USA, Missouri KW - Cadmium KW - Turdus migratorius KW - Toxicology KW - Metals KW - Smelting KW - Environmental impact KW - Poisoning KW - Wastes KW - USA, Kansas KW - Kidneys KW - Habitat KW - Mines KW - Aves KW - Cardinalis cardinalis KW - Mine Wastes KW - Mining KW - Aquatic birds KW - Erythrocytes KW - Pollution effects KW - Environmental factors KW - USA, Oklahoma KW - Habitats KW - Assessments KW - Zinc KW - Archives KW - Flotation KW - Waterfowl KW - Enzymes KW - Smelters KW - Blood KW - Acids KW - Kidney KW - Liver KW - Deposition KW - Pancreatitis KW - Q5 08503:Characteristics, behavior and fate KW - X 24166:Environmental impact KW - AQ 00008:Effects of Pollution KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19415215?accountid=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=Zinc+and+Lead+Poisoning+in+Wild+Birds+in+the+Tri-State+Mining+District+%28Oklahoma%2C+Kansas%2C+and+Missouri%29&rft.au=Beyer%2C+W+N%3BDalgarn%2C+J%3BDudding%2C+S%3BFrench%2C+J+B%3BMateo%2C+R%3BMiesner%2C+J%3BSileo%2C+L%3BSpann%2C+J&rft.aulast=Beyer&rft.aufirst=W&rft.date=2004-12-01&rft.volume=48&rft.issue=1&rft.spage=108&rft.isbn=&rft.btitle=&rft.title=Archives+of+Environmental+Contamination+and+Toxicology&rft.issn=00904341&rft_id=info:doi/10.1007%2Fs00244-004-0010-7 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-01-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Heavy metals; Pancreas; Erythrocytes; Wastes; Pollution effects; Kidneys; Environmental factors; Toxicity tests; Lead; Zinc; Cadmium; Mining; Archives; Flotation; Aquatic birds; Toxicology; Metals; Liver; Kidney; Smelters; Mines; Habitat; Pancreatitis; Tissues; Smelting; Poisoning; Environmental impact; Blood; Waterfowl; Contamination; Enzymes; Habitats; Assessments; Exposure; Acids; Deposition; Mine Wastes; Birds; Aves; Cardinalis cardinalis; Turdus migratorius; USA, Oklahoma; USA, Missouri; USA, Kansas DO - http://dx.doi.org/10.1007/s00244-004-0010-7 ER - TY - JOUR T1 - Predicting maternal body burdens of organochlorine pesticides from eggs and evidence of maternal transfer in Alligator mississippiensis AN - 19405891; 6192423 AB - Few data exist regarding maternal-embryonal transfer of organochlorine pesticides (OCPs) in reptiles. The objective of the present study was to evaluate maternal transfer of OCPs in American alligators (Alligator mississippiensis) from low-, intermediate-, and high-OCP-exposure sites. Overall, total OCP burdens ranged from less than 0.8 ppb in blood to more than 44,000 ppb in abdominal adipose tissue (wet wt concentrations). Lipid-adjusted ratios of maternal adipose burdens (total OCPs) to yolk burdens were close to one (0.94 plus or minus 0.31:1), suggesting that animals were in steady state and that OCPs in eggs originated from adipose lipids. In contrast, lipid-adjusted muscle and liver OCP burdens were greater than yolk OCP burdens, suggesting that lipids in muscle were not utilized during oogenesis and that nonlipid liver tissue sequesters OCPs. Predictive equations were derived for several tissues and several OCP analytes with r super(2) values ranging from 0.40 to 0.99 (p < 0.05). We suggest that yolk burdens are predictive of maternal tissue burdens for certain tissues and OCPs and that certain OCPs are maternally transferred in the American alligator. Furthermore, we suggest that future studies should investigate the applicability of these predictive equations for assessing maternal exposure in other crocodilian species. JF - Environmental Toxicology and Chemistry AU - Rauschenberger, R H AU - Sepulveda AU - Wiebe, J J AU - Szabo, N J AU - Gross, T S AD - U.S. Geological Survey, Florida Integrated Science Center, 7920 Northwest 71st Street, Gainesville, FL 32653, USA, heath_rauschenberger@usgs.gov Y1 - 2004/12// PY - 2004 DA - December 2004 SP - 2906 EP - 2915 VL - 23 IS - 12 SN - 0730-7268, 0730-7268 KW - American alligator KW - maternal transfer KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts; Toxicology Abstracts KW - Prediction KW - Tissues KW - Organochlorine compounds KW - Lipids KW - Aquatic reptiles KW - Toxicity tests KW - Eggs KW - Yolk KW - Exposure KW - Muscle KW - Alligator mississippiensis KW - Oogenesis KW - Toxicology KW - Mathematical models KW - Body burden KW - Chlorine compounds KW - Geochemistry KW - Muscles KW - Pesticides (organochlorine) KW - Blood levels KW - Blood KW - Bioaccumulation KW - Maternal transfer KW - Water Pollution Effects KW - Pesticides KW - Liver KW - Adipose tissue KW - Q5 08504:Effects on organisms KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of pollution KW - P 6000:TOXICOLOGY AND HEALTH KW - X 24136:Environmental impact UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19405891?accountid=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+and+Chemistry&rft.atitle=Predicting+maternal+body+burdens+of+organochlorine+pesticides+from+eggs+and+evidence+of+maternal+transfer+in+Alligator+mississippiensis&rft.au=Rauschenberger%2C+R+H%3BSepulveda%3BWiebe%2C+J+J%3BSzabo%2C+N+J%3BGross%2C+T+S&rft.aulast=Rauschenberger&rft.aufirst=R&rft.date=2004-12-01&rft.volume=23&rft.issue=12&rft.spage=2906&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 - 2007-01-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Prediction; Body burden; Mathematical models; Chlorine compounds; Geochemistry; Pesticides; Aquatic reptiles; Toxicity tests; Toxicology; Oogenesis; Blood; Maternal transfer; Lipids; Liver; Adipose tissue; Pesticides (organochlorine); Eggs; Yolk; Tissues; Bioaccumulation; Organochlorine compounds; Muscles; Blood levels; Exposure; Water Pollution Effects; Muscle; Alligator mississippiensis ER - TY - JOUR T1 - CHANGES IN LAGOONAL MARSH MORPHOLOGY AT SELECTED NORTHEASTERN ATLANTIC COAST SITES OF SIGNIFICANCE TO MIGRATORY WATERBIRDS AN - 19402799; 8694401 AB - Five lagoonal salt marsh areas, ranging from 220 ha to 3,670 ha, were selected from Cape Cod, Massachusetts to the southern DelMarVa peninsula, Virginia, USA to examine the degree to which Spartina marsh area and microhabitats had changed from the early or mid- 1900s to recent periods. We chose areas based on their importance to migratory bird populations, agency concerns about marsh loss and sea-level rise, and availability of historic imagery. We georeferenced and processed aerial photographs from a variety of sources ranging from 1932 to 1994. Of particular interest were changes in total salt marsh area, tidal creeks, tidal flats, tidal and non-tidal ponds, and open water habitats. Nauset Marsh, within Cape Cod National Seashore, experienced an annual marsh loss of 0.40% (19% from 1947 to 1994) with most loss attributed to sand overwash and conversion to open water. At Forsythe National Wildlife Refuge in southern New Jersey, annual loss was 0.27% (17% from 1932 to 1995), with nearly equal attribution of loss to open water and tidal pond expansion. At Curlew Bay, Virginia, annual loss was 0.20% (9% from 1949 to 1994) and almost entirely due to perimeter erosion to open water. At Gull Marsh, Virginia, a site chosen because of known erosional losses, we recorded the highest annual loss rate, 0.67% per annum, again almost entirely due to erosional, perimeter loss. In contrast, at the southernmost site, Mockhorn Island Wildlife Management Area, Virginia, there was a net gain of 0.09% per annum (4% from 1949 to 1994), with tidal flats becoming increasingly vegetated. Habitat implications for waterbirds are considerable; salt marsh specialists such as laughing gulls (Larus atricilla), Forster's terns (Sterna forsteri), black rail, (Laterallus jamaicensis), seaside sparrow (Ammodramus maritimus), and saltmarsh sharp-tailed sparrow (Ammodramus caudacutus) are particularly at risk if these trends continue, and all but the laughing gull are species of concern to state and federal managers. JF - Wetlands AU - Erwin, RMichael AU - Sanders, Geoffrey M AU - Prosser, Diann J AD - USGS Patuxent Wildlife Research Center Department of Environmental Sciences 291 McCormick Rd. University of Virginia Charlottesville, Virginia, USA 22904 Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 891 EP - 903 PB - Society of Wetland Scientists, P.O. Box 1897 VL - 24 IS - 4 SN - 0277-5212, 0277-5212 KW - Ecology Abstracts; Sustainability Science Abstracts; Water Resources Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 1: Biological Sciences & Living Resources KW - salt marsh KW - marsh loss KW - Atlantic coast KW - sea-level rise KW - GIS KW - waterbirds KW - Spartina KW - Historical account KW - Sea level KW - Ammodramus maritimus KW - Sterna forsteri KW - migratory birds KW - USA, Atlantic Coast KW - Ponds KW - ANW, USA, Virginia KW - Marine fish KW - Wetlands KW - Wildlife KW - Recruitment KW - Aquatic plants KW - Chemical oxygen demand KW - Habitat KW - ANW, USA, Delaware, Delmarva Peninsula KW - Coastal zone KW - Aquatic Habitats KW - Birds KW - Ammodramus caudacutus KW - Aquatic birds KW - Sea level changes KW - Wildlife management KW - Laterallus jamaicensis KW - Lagoons KW - Islands KW - Gulls KW - Sand KW - Larus atricilla KW - Wildlife Management KW - Coasts KW - Marine KW - Salt Marshes KW - Tidal Flats KW - Gadus morhua KW - Marshes KW - ANW, USA, Massachusetts, Cape Cod, Eastham, Nauset Marsh KW - Erosion KW - ANW, USA, New Jersey KW - Salt marshes KW - Morphology KW - Tidal flats KW - ANW, USA, Massachusetts, Cape Cod KW - Q1 08421:Migrations and rhythms KW - O 5040:Processing, Products and Marketing KW - Q2 09271:Coastal morphology KW - M3 1010:Issues in Sustainable Development KW - SW 0870:Erosion and sedimentation KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19402799?accountid=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=Wetlands&rft.atitle=CHANGES+IN+LAGOONAL+MARSH+MORPHOLOGY+AT+SELECTED+NORTHEASTERN+ATLANTIC+COAST+SITES+OF+SIGNIFICANCE+TO+MIGRATORY+WATERBIRDS&rft.au=Erwin%2C+RMichael%3BSanders%2C+Geoffrey+M%3BProsser%2C+Diann+J&rft.aulast=Erwin&rft.aufirst=RMichael&rft.date=2004-12-01&rft.volume=24&rft.issue=4&rft.spage=891&rft.isbn=&rft.btitle=&rft.title=Wetlands&rft.issn=02775212&rft_id=info:doi/10.1672%2F0277-5212%282004%290242.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-12-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Marine fish; Salt marshes; Tidal flats; Aquatic plants; Wetlands; Marshes; Aquatic birds; Ponds; Sea level changes; Wildlife management; Recruitment; Chemical oxygen demand; Habitat; Coasts; Historical account; Sea level; migratory birds; Wildlife; Erosion; Coastal zone; Islands; Sand; Morphology; Salt Marshes; Aquatic Habitats; Gulls; Tidal Flats; Birds; Lagoons; Wildlife Management; Sterna forsteri; Laterallus jamaicensis; Ammodramus maritimus; Larus atricilla; Gadus morhua; Spartina; Ammodramus caudacutus; ANW, USA, Delaware, Delmarva Peninsula; ANW, USA, New Jersey; ANW, USA, Massachusetts, Cape Cod; ANW, USA, Massachusetts, Cape Cod, Eastham, Nauset Marsh; USA, Atlantic Coast; ANW, USA, Virginia; Marine DO - http://dx.doi.org/10.1672/0277-5212(2004)024[0891:CILMMA]2.0.CO;2 ER - TY - JOUR T1 - Hydrogeology Journal in 2004 AN - 19388715; 8614794 AB - Abstract not available. JF - Hydrogeology Journal AU - Voss, Clifford AU - Olcott, Perry AU - Schneider, Robert AU - Watson, Christine AD - Executive Editor, US Geological Survey, 431 National Center, Reston, Virginia 20192, USA, cvoss@usgs.gov Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 611 EP - 612 PB - Springer-Verlag, P.O. Box 2485 Secaucus NJ 07096-2485 USA, [mailto:orders@springer-ny.com], [URL:http://www.springer-ny.com/] VL - 12 IS - 6 SN - 1431-2174, 1431-2174 KW - Water Resources Abstracts KW - Geohydrology KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19388715?accountid=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=Hydrogeology+Journal+in+2004&rft.au=Voss%2C+Clifford%3BOlcott%2C+Perry%3BSchneider%2C+Robert%3BWatson%2C+Christine&rft.aulast=Voss&rft.aufirst=Clifford&rft.date=2004-12-01&rft.volume=12&rft.issue=6&rft.spage=611&rft.isbn=&rft.btitle=&rft.title=Hydrogeology+Journal&rft.issn=14312174&rft_id=info:doi/10.1007%2Fs10040-004-0418-1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-12-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Geohydrology DO - http://dx.doi.org/10.1007/s10040-004-0418-1 ER - TY - JOUR T1 - Slow recovery in desert perennial vegetation following prolonged human disturbance AN - 19336612; 8695546 AB - Questions: How long may it take for desert perennial vegetation to recover from prolonged human disturbance and how do different plant community variables (i.e. diversity, density and cover) change during the recovery process? Location: Sonoran Desert, Arizona, USA. Methods: Since protection from grazing from 1907 onwards, plant diversity, density and cover of perennial species were monitored intermittently on ten 10 m 10 m permanent plots on Tumamoc Hill, Tucson, Arizona, USA. Results: The study shows an exceptionally slow recovery of perennial vegetation from prolonged heavy grazing and other human impacts. Since protection, overall species richness and habitat heterogeneity at the study site continued to increase until the 1960s when diversity, density and cover had been stabilized. During the same period, overall plant density and cover also increased. Species turnover increased gradually with time but no significant relation between any of the three community variables and precipitation or Palmer Drought Severity Index (PDSI) was detected. Conclusions: It took more than 50 yr for the perennial vegetation to recover from prolonged human disturbance. The increases in plant species richness, density, and cover of the perennial vegetation were mostly due to the increase of herbaceous species, especially palatable species. The lack of a clear relationship between environment (e.g. precipitation) and community variables suggests that site history and plant life history must be taken into account in examining the nature of vegetation recovery processes after disturbance. Abbreviation: CV = Coefficient of variation; PDSI = Palmer Drought Severity Index. Nomenclature: Lehr (1978). JF - Journal of Vegetation Science AU - Guo, Qinfeng Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 757 EP - 762 PB - Allen Press, Inc., 810 East Tenth St. VL - 15 IS - 6 SN - 1100-9233, 1100-9233 KW - Ecology Abstracts KW - Climate effects KW - Grazing KW - Long-term dynamics KW - Site history KW - Sonoran Desert KW - Species turnover KW - Life history KW - Deserts KW - Plant communities KW - Vegetation KW - Precipitation KW - Droughts KW - Species richness KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19336612?accountid=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+Vegetation+Science&rft.atitle=Slow+recovery+in+desert+perennial+vegetation+following+prolonged+human+disturbance&rft.au=Guo%2C+Qinfeng&rft.aulast=Guo&rft.aufirst=Qinfeng&rft.date=2004-12-01&rft.volume=15&rft.issue=6&rft.spage=757&rft.isbn=&rft.btitle=&rft.title=Journal+of+Vegetation+Science&rft.issn=11009233&rft_id=info:doi/10.1658%2F1100-9233%282004%290152.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-12-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Life history; Grazing; Deserts; Plant communities; Vegetation; Precipitation; Droughts; Species richness DO - http://dx.doi.org/10.1658/1100-9233(2004)015[0757:SRIDPV]2.0.CO;2 ER - TY - JOUR T1 - Red Spruce Dynamics in an Old Southern Appalachian Forest AN - 17830362; 6156668 AB - By the late 1980s the composition and structure of forest stands in the southern Appalachian spruce-fir zone were altered by insect infestations to Fraser fir. The response of red spruce, the sole remaining coniferous forest dominant, to this disturbance was followed over twenty years (1983-2003) in an old spruce-fir forest at Mt. Collins, Great Smoky Mountains National Park. Although diameter growth of canopy red spruce (>30 cm dbh) at six plot sites was considerable (mean 10-yr increment 2.1 cm; 1993-2003), red spruce mortality increased sharply (mean 4% yr super(-1); 1993-2003). Wind-related mortality of canopy red spruce was substantial after the loss of Fraser fir from the canopy circa 1985 (>70% of the dead spruce had broken or uprooted boles; 1983-2003). Wind damage to red spruce was observed at most plot sites, but it was most pronounced on exposed topographic positions, where canopy gap expansion was extensive. The elevated mortality of red spruce at Mt. Collins was not associated with reduced diameter growth. Altered canopy structure has left large red spruce vulnerable to high winds. With the loss of canopy fir and the subsequent increase in mortality of canopy spruce, total live basal area has declined to about half of its pre-disturbance level. JF - Journal of the Torrey Botanical Society AU - Busing, Richard T AD - U.S. Geological Survey, 200 SW 35uth St., Corvallis, OR 97333, rbusing@usgs.gov Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 337 EP - 342 PB - Allen Press, Inc., 810 East Tenth St. Lawrence KS 66044 USA, [mailto:webmaster@allenpress.com], [URL:http://www.allenpress.com] VL - 131 IS - 4 SN - 1095-5674, 1095-5674 KW - Ecology Abstracts KW - Mortality KW - Infestation KW - USA KW - National parks KW - Forests KW - Disturbance KW - Canopies KW - Wind KW - D 04125:Temperate forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17830362?accountid=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+Torrey+Botanical+Society&rft.atitle=Red+Spruce+Dynamics+in+an+Old+Southern+Appalachian+Forest&rft.au=Busing%2C+Richard+T&rft.aulast=Busing&rft.aufirst=Richard&rft.date=2004-12-01&rft.volume=131&rft.issue=4&rft.spage=337&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Torrey+Botanical+Society&rft.issn=10955674&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; Canopies; Forests; Mortality; Wind; National parks; Disturbance; Infestation ER - TY - JOUR T1 - Feeding Habitat Characteristics of the Great Blue Heron and Great Egret Nesting Along the Upper Mississippi River, 1995-1998 AN - 17829661; 6142310 AB - The Great Blue Heron (Ardea herodias) and Great Egret (Ardea alba) nested in eight colonies along the Upper Mississippi River, USA, and individual birds were followed by airplane to feeding sites during the nesting seasons in 1995-1998. Both species used braided channel/backwater habitats for feeding more than expected, based on availability, and open pool and main navigation channel less than expected. Most individuals of both species fed 10 km away. Habitat and distance need to be considered simultaneously when assessing habitat quality for herons and egrets. The Great Blue Heron flew farther to feeding sites during the care-of-young period than during incubation and the Great Egret showed the opposite pattern. The Great Blue Heron tended to feed solitarily; only 10% of the feeding flights ended at a location where another heron was already present. About one-third of Great Egret feeding flights ended at a location with another egret already present. Colony placement on the landscape seemed to be a function of the feeding radius of each colony. JF - Waterbirds AU - Custer, C M AU - Suarez, SA AU - Olsen, DA AD - USGS, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI 54603, USA, ccuster@usgs.gov Y1 - 2004/12// PY - 2004 DA - December 2004 SP - 454 EP - 468 PB - The Waterbird Society VL - 27 IS - 4 SN - 1524-4695, 1524-4695 KW - Great blue heron KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Rivers KW - Backwaters KW - USA, Mississippi R. KW - Freshwater KW - Habitat selection KW - Ardea herodias KW - USA KW - Colonies KW - Breeding KW - Feeding behaviour KW - Nesting KW - Habitat utilization KW - Feeding behavior KW - Aquatic birds KW - D 04671:Birds KW - Q1 08425:Nutrition and feeding habits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17829661?accountid=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=Feeding+Habitat+Characteristics+of+the+Great+Blue+Heron+and+Great+Egret+Nesting+Along+the+Upper+Mississippi+River%2C+1995-1998&rft.au=Custer%2C+C+M%3BSuarez%2C+SA%3BOlsen%2C+DA&rft.aulast=Custer&rft.aufirst=C&rft.date=2004-12-01&rft.volume=27&rft.issue=4&rft.spage=454&rft.isbn=&rft.btitle=&rft.title=Waterbirds&rft.issn=15244695&rft_id=info:doi/10.1043%2F1524-4695%282004%290272.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Feeding behaviour; Nesting; Backwaters; Habitat selection; Aquatic birds; Rivers; Colonies; Breeding; Habitat utilization; Feeding behavior; Ardea herodias; USA; USA, Mississippi R.; Freshwater DO - http://dx.doi.org/10.1043/1524-4695(2004)027<0454:FHCOTG>2.0.CO;2 ER - TY - JOUR T1 - Do Adult Little Egrets Respond to Disturbance at Their Nest by Increased Breeding Dispersal? AN - 17829254; 6142312 AB - When studying breeding dispersal with marked individuals, manipulation-induced disturbance should not affect movement patterns. As part of a study on the Little Egret (Egretta garzetta), we tested whether the capture of breeding adults at their nest and handling (i.e., disturbance) increased their probability to move to a new colony in the subsequent breeding season (i.e., breeding dispersal). The proportion of adults disturbed in a given year that had changed colony in the subsequent breeding season was compared with the dispersal of adults observed during at least two consecutive years at colonies and not disturbed on the previous year: (1) birds marked as chicks and (2) birds marked as adults and observed greater than or equal to two years after capture at the nest. Disturbed birds were not found to have an increased propensity to disperse. We conclude that, for this species, capture did not increase the subsequent breeding dispersal. JF - Waterbirds AU - Henry, P-Y AU - Bennetts, R E AU - Kayser, Y AU - Hafner, H AD - USGS-Florida & Caribbean Science Center 7920 NW, 71st Street, Gainesville, FL 32618, USA, gauthier-clerc@tourduvalat.org Y1 - 2004/12// PY - 2004 DA - December 2004 SP - 480 EP - 482 PB - The Waterbird Society VL - 27 IS - 4 SN - 1524-4695, 1524-4695 KW - Capture disturbance KW - Little Egret KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts; Animal Behavior Abstracts KW - Handling KW - Man-induced effects KW - Freshwater KW - Nests KW - Local movements KW - Breeding KW - Breeding sites KW - Nesting KW - Egretta garzetta KW - Disturbance KW - Dispersal KW - Reproductive behaviour KW - Aquatic birds KW - Dispersion KW - D 04671:Birds KW - Q1 08423:Behaviour KW - Y 25656:Birds KW - Q1 08364:Reproduction and development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17829254?accountid=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+Adult+Little+Egrets+Respond+to+Disturbance+at+Their+Nest+by+Increased+Breeding+Dispersal%3F&rft.au=Henry%2C+P-Y%3BBennetts%2C+R+E%3BKayser%2C+Y%3BHafner%2C+H&rft.aulast=Henry&rft.aufirst=P-Y&rft.date=2004-12-01&rft.volume=27&rft.issue=4&rft.spage=480&rft.isbn=&rft.btitle=&rft.title=Waterbirds&rft.issn=15244695&rft_id=info:doi/10.1043%2F1524-4695%282004%290272.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Local movements; Breeding sites; Handling; Nesting; Man-induced effects; Reproductive behaviour; Nests; Aquatic birds; Dispersion; Breeding; Dispersal; Disturbance; Egretta garzetta; Freshwater DO - http://dx.doi.org/10.1043/1524-4695(2004)027<0480:DALERT>2.0.CO;2 ER - TY - JOUR T1 - Estimation of sex-specific survival from capture-recapture data when sex is not always known AN - 17743378; 6142706 AB - Many animals lack obvious sexual dimorphism, making assignment of sex difficult even for observed or captured animals. For many such species it is possible to assign sex with certainty only at some occasions; for example, when they exhibit certain types of behavior. A common approach to handling this situation in capture-recapture studies has been to group capture histories into those of animals eventually identified as male and female and those for which sex was never known. Because group membership is dependent on the number of occasions at which an animal was caught or observed (known sex animals, on average, will have been observed at more occasions than unknown-sex animals), survival estimates for known-sex animals will be positively biased, and those for unknown animals will be negatively biased. In this paper, we develop capture-recapture models that incorporate sex ratio and sex assignment parameters that permit unbiased estimation in the face of this sampling problem. We demonstrate the magnitude of bias in the traditional capture-recapture approach to this sampling problem, and we explore properties of estimators from other ad hoc approaches. The model is then applied to capture-recapture data for adult Roseate Terns (Sterna dougallii) at Falkner Island, Connecticut, 1993-2002. Sex ratio among adults in this population favors females, and we tested the hypothesis that this population showed sex-specific differences in adult survival. Evidence was provided for higher survival of adult females than males, as predicted. We recommend use of this modeling approach for future capture-recapture studies in which sex cannot always be assigned to captured or observed animals. We also place this problem in the more general context of uncertainty in state classification in multistate capture-recapture models. JF - Ecology AU - Nichols, J D AU - Kendall, W L AU - Hines, JE AU - Spendelow, JA AD - USGS Patuxent Wildlife Research Center, 11510 American Holly Drive, Laurel, Maryland 20708-4017 USA, Jim_Nichols@usgs.gov Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 3192 EP - 3201 VL - 85 IS - 12 SN - 0012-9658, 0012-9658 KW - Roseate tern KW - Ecology Abstracts KW - Mathematical models KW - Sex ratio KW - Sterna dougallii KW - USA, Connecticut KW - Survival KW - Sex differences KW - D 04671:Birds KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17743378?accountid=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=Estimation+of+sex-specific+survival+from+capture-recapture+data+when+sex+is+not+always+known&rft.au=Payne%2C+John+F&rft.aulast=Payne&rft.aufirst=John&rft.date=2004-01-01&rft.volume=11&rft.issue=1&rft.spage=29&rft.isbn=&rft.btitle=&rft.title=Witness+the+Arctic&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 - Sterna dougallii; USA, Connecticut; Survival; Sex differences; Mathematical models; Sex ratio ER - TY - JOUR T1 - Characterization of Lake Michigan coastal lakes using zooplankton assemblages AN - 17695689; 6065366 AB - Zooplankton assemblages and water quality were examined bi-weekly from 17 April to 19 October 1998 in 11 northeastern Lake Michigan coastal lakes of similar origin but varied in trophic status and limnological condition. All lakes were within or adjacent to Sleeping Bear Dunes National Lakeshore, Michigan. Zooplankton (principally microcrustaceans and rotifers) from triplicate Wisconsin net (80 mu m) vertical tows taken at each lake's deepest location were analyzed. Oxygen-temperature-pH-specific conductivity profiles and surface water quality were concurrently measured. Bray-Curtis similarity analysis showed small variations among sample replicates but large temporal differences. The potential use of zooplankton communities for environmental lake comparisons was evaluated by means of BIOENV (Primer 5.1) and principal component analyses. Zooplankton analyzed at the lowest identified taxonomic level yielded greatest sensitivity to limnological variation. Taxonomic and ecological aggregations of zooplankton data performed comparably, but less well than the finest taxonomic analysis. Secchi depth, chlorophyll a, and sulfate concentrations combined to give the best correlation with patterns of variation in the zooplankton data set. Principal component analysis of these variables revealed trophic status as the most influential major limnological gradient among the study lakes. Overall, zooplankton abundance was an excellent indicator of variation in trophic status. JF - Ecological Indicators AU - Whitman, R L AU - Nevers, M B AU - Goodrich, M L AU - Murphy, P C AU - Davis, B M AD - US Geological Survey, Lake Michigan Ecological Research Station, 1100 North Mineral Springs Road, Porter, IN 46304, USA, richard_whitman@usgs.gov Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 277 EP - 286 PB - Elsevier Science Ltd., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 4 IS - 4 SN - 1470-160X, 1470-160X KW - Ecology Abstracts KW - USA, Michigan KW - Lakes KW - Zooplankton KW - Water quality KW - Trophic status KW - Indicator species KW - D 04310:Freshwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17695689?accountid=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+Indicators&rft.atitle=Characterization+of+Lake+Michigan+coastal+lakes+using+zooplankton+assemblages&rft.au=Whitman%2C+R+L%3BNevers%2C+M+B%3BGoodrich%2C+M+L%3BMurphy%2C+P+C%3BDavis%2C+B+M&rft.aulast=Whitman&rft.aufirst=R&rft.date=2004-12-01&rft.volume=4&rft.issue=4&rft.spage=277&rft.isbn=&rft.btitle=&rft.title=Ecological+Indicators&rft.issn=1470160X&rft_id=info:doi/10.1016%2Fj.ecolind.2004.08.001 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Lakes; Zooplankton; Trophic status; Water quality; Indicator species; USA, Michigan DO - http://dx.doi.org/10.1016/j.ecolind.2004.08.001 ER - TY - JOUR T1 - Validation of the relation between structural patterns in fractured bedrock and structural information interpreted from 2D-Variogram maps of water-well yields in Loudoun county, Virginia AN - 17431524; 6534398 AB - Field geology was used to validate the hypothesis that the variography of the initial yields of water wells drilled into fractured crystalline bedrock reveals the geologic structure of the bedrock. Patterns in two-dimensional (2D)-variogram maps were predicted for four areas using geology gained from field mapping. Variograms were calculated for the areas and compared with the predictions. The predictions made by the field geologist (Scott Southworth) corresponded well with the variograms. This implies that variography may suggest the underlying geologic structure in areas that have many water wells but little rock outcrop. JF - Natural Resources Research AU - Drew, Lawrence J AU - Southworth, Scott AU - Sutphin, David M AU - Rubis, Glen A AU - Schuenemeyer, John H AU - Burton, William C AD - U.S. Geological Survey, Reston, Virginia, ldrew@usgs.gov Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 255 EP - 264 PB - Kluwer Academic/Plenum Publishers, 233 Spring St. New York NY 10013-1578 USA, [mailto:bischoff@plenum.com], [URL:http://www.kluweronline.com/] VL - 13 IS - 4 SN - 1520-7439, 1520-7439 KW - Water Resources Abstracts KW - Prediction KW - Geologic Fractures KW - Natural Resources KW - Water Yield KW - USA, Virginia KW - Geology KW - Maps KW - Bedrock KW - SW 6050:Rock mechanics and geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17431524?accountid=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=Natural+Resources+Research&rft.atitle=Validation+of+the+relation+between+structural+patterns+in+fractured+bedrock+and+structural+information+interpreted+from+2D-Variogram+maps+of+water-well+yields+in+Loudoun+county%2C+Virginia&rft.au=Drew%2C+Lawrence+J%3BSouthworth%2C+Scott%3BSutphin%2C+David+M%3BRubis%2C+Glen+A%3BSchuenemeyer%2C+John+H%3BBurton%2C+William+C&rft.aulast=Drew&rft.aufirst=Lawrence&rft.date=2004-12-01&rft.volume=13&rft.issue=4&rft.spage=255&rft.isbn=&rft.btitle=&rft.title=Natural+Resources+Research&rft.issn=15207439&rft_id=info:doi/10.1007%2Fs11053-004-0133-6 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Prediction; Geologic Fractures; Natural Resources; Water Yield; Geology; Maps; Bedrock; USA, Virginia DO - http://dx.doi.org/10.1007/s11053-004-0133-6 ER - TY - JOUR T1 - An Ecosystem Approach to Combat Desertification on the Colorado Plateau AN - 17372092; 6430051 AB - Desertification of shrub and grassland into pinyon-juniper woodland is occurring over much of the Colorado Plateau in the southwestern United States. As trees invade, they out-compete shrubs and grasses, increasing erosion rates and reducing infiltration of moisture into the soil. This has caused habitat problems for wildlife, and reduced forage for livestock. These impacts also affect the human communities that rely on ranching and tourism related to hunting. Past land use and management practices including heavy livestock grazing, fire suppression and introduction of exotic annual plants are believed to have led to current conditions. The Montrose office of the Bureau of Land Management has implemented an ecosystem-based program to reverse the desertification process on public land. The program is centered on detailed landscape objectives describing the desired vegetation mosaic on 360 000 ha of public land. The objectives outline proportions of plant seral stages and arrays of patch sizes for each planning unit. These objectives are based on priority management issues and the need to replicate a natural vegetation mosaic. Where the existing mosaic does not meet objectives, mechanical vegetation treatments and prescribed fire are used to create early and mid-seral patches on the ground. This restored vegetation pattern and type should be sustained over time through a natural fire regime and improved livestock management. Because many uncertainties exist, an adaptive management process is being used that allows mosaic objectives to be changed or processes modified where monitoring or scientific research indicate a need. JF - Environmental Monitoring and Assessment AU - Clements, Amanda AD - U.S. Bureau of Land Management, B L M Uncompahgre Field Office, 2505 South Townsend Avenue, Montrose, Colorado, U.S.A., amanda_clements@co.blm.gov Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 233 EP - 243 PB - Springer-Verlag (Heidelberg), Tiergartenstrasse 17 Heidelberg 69121 Germany, [mailto:subscriptions@springer.de], [URL:http://www.springer.de/] VL - 99 IS - 1-3 SN - 0167-6369, 0167-6369 KW - Meteorological & Geoastrophysical Abstracts; Ecology Abstracts; Sustainability Science Abstracts KW - Environmental monitoring KW - Environmental degradation KW - Shrubs KW - Fires KW - Desertification KW - Land management KW - USA, Colorado Plateau KW - Land use KW - Livestock KW - Soil KW - Grasslands KW - USA KW - USA, Colorado KW - Scientific research KW - Infiltration KW - Mosaics KW - Hunting KW - Erosion rates KW - Topography KW - M2 556:General (556) KW - M3 1010:Issues in Sustainable Development KW - D 04712:Environmental degradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17372092?accountid=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+Monitoring+and+Assessment&rft.atitle=An+Ecosystem+Approach+to+Combat+Desertification+on+the+Colorado+Plateau&rft.au=Clements%2C+Amanda&rft.aulast=Clements&rft.aufirst=Amanda&rft.date=2004-12-01&rft.volume=49&rft.issue=3&rft.spage=63&rft.isbn=&rft.btitle=&rft.title=Water+science+and+technology+%3A+a+journal+of+the+International+Association+on+Water+Pollution+Research&rft.issn=02731223&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-06-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Soil; Shrubs; Environmental degradation; Grasslands; Fires; Desertification; Mosaics; Livestock; Environmental monitoring; Scientific research; Land management; Infiltration; Hunting; Erosion rates; Land use; Topography; USA, Colorado; USA; USA, Colorado Plateau DO - http://dx.doi.org/10.1007/s10661-004-4024-4 ER - TY - JOUR T1 - Flow Cytometry Used to Assess Genetic Damage in Frogs from Farm Ponds AN - 17188854; 6858147 AB - Flow cycometry (FC) is a laboratory method used to detect genetic damage induced by environmental contaminants and other Stressors in animals, including amphibians. We tested FC methods on three species of ranid frogs collected from farm ponds and natural wetlands in southeastern Minnesota. We compared FC metrics for Rana clamitans between ponds with direct exposure to agricultutal contaminants and reference (unexposed) ponds. Concentrations of atrazine in water from our farm ponds ranged from 0.04 to 0.55 ppb. We found that R. clamitans from exposed ponds had DNA content similar to frogs from unexposed ponds. Pond-averaged C-values (a measure of DNA content) ranged from 6.53 to 7.08 for R. pipiens (n = 13), 6.55 to 6.60 for R. clamitans (n = 40) and 6.74 for R. palustris (n = 5). Among all species, the mean sample CVs ranged from 1.91 (R. palustris) to 6.31 (R. pipiens). Deformities were observed in only 2 of 796 individuals among all species and occurred in both reference and exposed ponds. Although we did not detect evidence of DNA damage associated with agriculture in our study, we demonstrated the potential of FC for screening amphibian populations for genetic damage. Metrics from a variety of amphibian species and locations as well as laboratory studies are needed to further assess the value of FC for monitoring amphibian genetic integrity in contaminated sites. JF - Journal of the Iowa Academy of Science AU - Bly, B L AU - Knutson, M G AU - Sandheinrich, M B AU - Gray, B R AU - Jobe, DA AD - United States Geological Survey, Upper Midwest Environmental Sciences Center, La Crosse, WI 54603, USA, melinda_knutson@fws.gov Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 67 EP - 70 VL - 111 IS - 3-4 SN - 0896-8381, 0896-8381 KW - Genetics Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Agriculture KW - Pollution monitoring KW - Farms KW - Amphibiotic species KW - Farm Ponds KW - Freshwater KW - Ponds KW - Flow cytometry KW - Population genetics KW - Frogs KW - Pollutants KW - Wetlands KW - Damage KW - Rana clamitans KW - Pollution detection KW - Laboratories KW - Amphibians KW - Toxicity KW - USA, Minnesota KW - DNA damage KW - USA, Iowa KW - Atrazine KW - DNA KW - Monitoring KW - Contaminants KW - Fish ponds KW - G 07850:Reptiles & Amphibians KW - Q1 08422:Environmental effects 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/17188854?accountid=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=Flow+Cytometry+Used+to+Assess+Genetic+Damage+in+Frogs+from+Farm+Ponds&rft.au=Bly%2C+B+L%3BKnutson%2C+M+G%3BSandheinrich%2C+M+B%3BGray%2C+B+R%3BJobe%2C+DA&rft.aulast=Bly&rft.aufirst=B&rft.date=2004-12-01&rft.volume=111&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 - 2006-12-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Flow cytometry; Pollution monitoring; Population genetics; Pollution detection; Amphibiotic species; DNA; Wetlands; Ponds; Fish ponds; Agriculture; DNA damage; Farms; Atrazine; Contaminants; Damage; Frogs; Pollutants; Farm Ponds; Laboratories; Amphibians; Toxicity; Monitoring; Rana clamitans; USA, Iowa; USA, Minnesota; Freshwater ER - TY - JOUR T1 - Responses of Ambystoma Gracile to the Removal of Introduced Nonnative Fish from a Mountain Lake AN - 17121063; 6122789 AB - Introduced, nonnative brook trout (Salvelinus fontinalis) were removed from a mountain lake in Mount Rainier National Park, Washington, to examine the capacity of native Ambystoma gracile (Northwestern Salamander) in the lake to respond to the intentional removal of fish. Temporal trends ( Delta N) were calculated for A. gracile larvae/neotene and egg mass relative abundances in the Fish Removal and an adjacent Fishless Lake. The diel and spatial patterns of A. gracile in the lakes were also enumerated during time-intervals of fish presence in and after fish removal from the Fish Removal Lake. Sixty-six fish were removed from the Fish Removal Lake. The Delta Ns for relative abundances in the Fish Removal Lake were positive for the study period and indicated that the number of larvae/neotenes and egg masses observed in the lake increased concurrent with the removal and extirpation of fish from the lake. Numbers of larvae/neotenes and egg masses observed in the Fishless Lake varied annually, but no overall positive or negative trends were evident during the study. Ambystoma gracile in the Fish Removal Lake, during fish presence, were predominantly nocturnal and located in the shallow, structurally complex nearshore area of the lake. After fish were removed, the number of A. gracile observed in the lake increased, especially during the day and in the deeper, less structurally complex offshore area of the lake. Fishless Lake A. gracile were readily observed day and night in all areas of the lake throughout the study. The A. gracile in the Fish Removal Lake behaviorally adapted to the presence of introduced fish and were able to recover from the affects of the fish following fish removal. This study underscores the important relationship between species life history and the variability of responses of montane aquatic-breeding amphibians to fish introductions in mountain lakes. JF - Journal of Herpetology AU - Hoffman, R L AU - Larson, G L AU - Samora, B AD - United States Geological Survey, Forest and Rangeland Ecosystem Science Center, 777 Northwest 9th Street, Suite 400, Corvallis, Oregon 97330, USA, robert_hoffman@usgs.gov Y1 - 2004/12// PY - 2004 DA - December 2004 SP - 578 EP - 585 PB - The Society for the Study of Amphibians and Reptiles VL - 38 IS - 4 SN - 0022-1511, 0022-1511 KW - Brook trout KW - Northwestern salamander KW - Salamanders KW - Animal Behavior Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Salvelinus fontinalis KW - USA, Washington, Mount Rainier Natl. Park KW - Amphibiotic species KW - Ambystoma gracile KW - National parks KW - Larvae KW - Environmental impact KW - Freshwater KW - Freshwater fish KW - USA, Washington KW - Lakes KW - Life history KW - Interspecific relationships KW - Caudata KW - Reproduction KW - Introduced species KW - Q1 08483:Species interactions: general KW - Y 25504:Vertebrates (excluding fish, birds & mammals) KW - D 04669:Amphibians UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17121063?accountid=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=Responses+of+Ambystoma+Gracile+to+the+Removal+of+Introduced+Nonnative+Fish+from+a+Mountain+Lake&rft.au=Hoffman%2C+R+L%3BLarson%2C+G+L%3BSamora%2C+B&rft.aulast=Hoffman&rft.aufirst=R&rft.date=2004-12-01&rft.volume=38&rft.issue=4&rft.spage=578&rft.isbn=&rft.btitle=&rft.title=Journal+of+Herpetology&rft.issn=00221511&rft_id=info:doi/10.1043%2F0022-1511%282004%290382.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-08-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Lakes; Interspecific relationships; Amphibiotic species; Environmental impact; Larvae; Reproduction; Introduced species; Freshwater fish; Life history; National parks; Salvelinus fontinalis; Caudata; Ambystoma gracile; USA, Washington; USA, Washington, Mount Rainier Natl. Park; Freshwater DO - http://dx.doi.org/10.1043/0022-1511(2004)038<0578:ROAGTT>2.0.CO;2 ER - TY - JOUR T1 - Effectiveness of a confinement strategy for reducing campsite impacts in Shenandoah National Park AN - 16202513; 6422267 AB - The expansion and proliferation of backcountry campsites is a persistent problem in many parks and protected areas. Shenandoah National Park (SNP) has one of the highest backcountry overnight use densities in the USA national parks system. SNP managers implemented a multi-option backcountry camping policy in 2000 that included camping containment with established campsites. These actions were intended to reduce the number of campsites and the area of camping disturbance at each site. This paper describes a longitudinal adaptive management assessment of the new campsite policies, applying quantitative measures of campsite conditions to evaluate the efficacy of management interventions. Physical campsite measurements combined with qualitative visitor interviews indicated SNP had successfully reduced the number of campsites and aggregate measures of camping-related disturbance in the Park, while minimizing the use of regulations, site facilities and staff resources. Implications for managers of other protected areas are that an established site camping policy can minimize camping disturbance, including the number and size of campsites, provided managers can sustain rehabilitation efforts to close and restore unneeded campsites. Experiential attributes, such as the potential for solitude, can also be manipulated through control over the selection of established campsites. Integrating resource and social science methods also provided a more holistic perspective on management policy assessments. Adaptive management research provided a timely evaluation of management success while facilitating effective modifications in response to unforeseen challenges. Conclusions regarding the effectiveness of a visitor impact containment strategy involving an established site camping option are offered. JF - Environmental Conservation AU - Reid, SE AU - Marion, J L AD - USGS Patuxent Wildlife Research Center, Virginia Tech Cooperative Park Studies Unit, 304 Cheatham Hall (0324), Blacksburg, VA 24061, USA, jmarion@vt.edu Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 274 EP - 282 VL - 31 IS - 4 SN - 0376-8929, 0376-8929 KW - Sustainability Science Abstracts; Ecology Abstracts KW - USA KW - Rehabilitation KW - National parks KW - Ecosystem management KW - Conservation KW - M3 1010:Issues in Sustainable Development KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16202513?accountid=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=Effectiveness+of+a+confinement+strategy+for+reducing+campsite+impacts+in+Shenandoah+National+Park&rft.au=Reid%2C+SE%3BMarion%2C+J+L&rft.aulast=Reid&rft.aufirst=SE&rft.date=2004-12-01&rft.volume=31&rft.issue=3&rft.spage=47&rft.isbn=&rft.btitle=&rft.title=Water+science+and+technology+%3A+a+journal+of+the+International+Association+on+Water+Pollution+Research&rft.issn=02731223&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Rehabilitation; Ecosystem management; National parks; Conservation; USA DO - http://dx.doi.org/10.1017/S037689290400l602 ER - TY - JOUR T1 - Flood-related, Organic-carbon Anomalies as Possible Temporal Markers in Reservoir Bottom Sediments AN - 16189014; 6153307 AB - Results of a study of sediment cores from four reservoirs in the upper Mississippi River Basin, USA, indicated that anomalous organic carbon concentrations associated with flood deposits may provide detectable temporal markers in reservoir bottom sediments. Temporal markers are needed for reservoir sediment studies to date sediment layers deposited between the 1963-64 cesium-137 peak and the present. For two of four reservoirs studied, anomalously low organic carbon concentrations were measured for a sample interval in the upper part of a sediment core. The anomalous interval was interpreted to have been deposited during the July 1993 flood that affected a large area of the upper Mississippi River Basin. Potentially, the July 1993 flood deposit may be used as a temporal marker in reservoir bottom sediments in parts of the basin affected by the flood. Several uncertainties remain regarding the viability of organic carbon as a temporal marker including the combination of flood, basin, and reservoir characteristics required to produce a recognizable organic carbon marker in the bottom sediment and the optimal sampling strategy needed to detect the marker in a sediment core. It is proposed that flood duration and basin size may be important factors as to whether or not an anomalous and detectable organic carbon layer is deposited in a reservoir. JF - Lake and Reservoir Management AU - Juracek, KE AD - U.S. Geological Survey, 4821 Quail Crest Place, Lawrence, KS 66049-3839, USA, kjuracek@usgs.gov Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 309 EP - 321 VL - 20 IS - 4 SN - 1040-2381, 1040-2381 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Pollution Abstracts; Water Resources Abstracts KW - River Basins KW - Water reservoirs KW - Fluvial Sediments KW - Lake Sediments KW - Caesium KW - Organic carbon KW - Basins KW - Bottom Sediments KW - USA, Mississippi R. KW - Freshwater KW - Sediment analysis KW - Lakes KW - Cores KW - Floods KW - Sampling KW - Reservoirs KW - Sediment chemistry KW - Organic Carbon KW - Flood Basins KW - River basins KW - USA, Mississippi R. basin KW - Sediments KW - Reservoir Management KW - Radioisotopes KW - SW 0850:Lakes KW - Q2 09264:Sediments and sedimentation KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16189014?accountid=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=Lake+and+Reservoir+Management&rft.atitle=Flood-related%2C+Organic-carbon+Anomalies+as+Possible+Temporal+Markers+in+Reservoir+Bottom+Sediments&rft.au=Juracek%2C+KE&rft.aulast=Juracek&rft.aufirst=KE&rft.date=2004-12-01&rft.volume=20&rft.issue=4&rft.spage=309&rft.isbn=&rft.btitle=&rft.title=Lake+and+Reservoir+Management&rft.issn=10402381&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-10-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Sediment chemistry; Water reservoirs; Caesium; Organic carbon; Radioisotopes; River basins; Sediments; Sediment analysis; Lakes; Floods; Basins; Reservoirs; Reservoir Management; River Basins; Cores; Flood Basins; Lake Sediments; Fluvial Sediments; Organic Carbon; Bottom Sediments; Sampling; USA, Mississippi R.; USA, Mississippi R. basin; Freshwater ER - TY - JOUR T1 - Characterization and comparison of phytoplankton in selected lakes of five Great Lakes area National Parks AN - 16185242; 6118346 AB - Phytoplankton species have been widely used as indicators of lake conditions, and they may be useful for detecting changes in overall lake condition. In an attempt to inventory and monitor its natural resources, the National Park Service wants to establish a monitoring program for aquatic resources in the Great Lakes Cluster National Parks. This study sought to establish baseline information on the phytoplankton and water chemistry of selected lakes in five national parks in a preliminary effort toward establishing a long-term monitoring program. Phytoplankton and water chemistry samples were collected from ten lakes in five national parks over a two-year period. A total of 176 taxa were identified during the study. Northern lakes generally had higher Shannon-Wiener diversity and clustered together in similarity. Lakes exhibited a south to north gradient of many water chemistry variables, with northern lakes having lower hardness, sulfate, turbidity, and temperature and higher dissolved oxygen. Chloride and sulfate concentrations were the variables that best explained variation among phytoplankton in the ten lakes. A monitoring plan will have to incorporate the differences among lakes, but by coordinating the effort, comparisons within and among parks and other regions will prove useful for determining environmental change. JF - Aquatic Ecosystem Health & Management AU - Nevers, M B AU - Whitman, R L AD - U.S. Geological Survey, Great Lakes Science Center, 1100 North Mineral Springs Road, Porter, Indiana 46304, USA, meredith_nevers@usgs.gov Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 515 EP - 528 VL - 7 IS - 4 SN - 1463-4988, 1463-4988 KW - Comparative studies KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources; Pollution Abstracts; Water Resources Abstracts; ASFA 1: Biological Sciences & Living Resources; Microbiology Abstracts C: Algology, Mycology & Protozoology; Ecology Abstracts KW - Sulfates KW - Chlorophylls KW - Water quality measurements KW - Climatic changes KW - Indicators KW - Phytoplankton KW - Freshwater KW - Sulphates KW - Dissolved oxygen KW - Lakes KW - Algae KW - Bioindicators KW - Environmental monitoring KW - Surveys KW - Hardness KW - Community composition KW - Latitudinal variations KW - Monitoring KW - Turbidity KW - National parks KW - Chlorides KW - Natural Resources KW - Baseline studies KW - Ecosystem management KW - Plankton surveys KW - Dissolved Oxygen KW - Temperature KW - Water hardness KW - Natural resources KW - North America, Great Lakes KW - Species diversity KW - Environmental conditions KW - Water chemistry KW - Indicator species KW - K 03009:Algae KW - D 04700:Management KW - Q5 08523:Conservation, wildlife management and recreation KW - Q1 08461:Plankton KW - SW 0850:Lakes KW - P 2000:FRESHWATER POLLUTION KW - Q2 09181:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16185242?accountid=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=Characterization+and+comparison+of+phytoplankton+in+selected+lakes+of+five+Great+Lakes+area+National+Parks&rft.au=Nevers%2C+M+B%3BWhitman%2C+R+L&rft.aulast=Nevers&rft.aufirst=M&rft.date=2004-12-01&rft.volume=7&rft.issue=4&rft.spage=515&rft.isbn=&rft.btitle=&rft.title=Aquatic+Ecosystem+Health+%26+Management&rft.issn=14634988&rft_id=info:doi/10.1080%2F14634980490513265 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-05-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Chlorophylls; Plankton surveys; Climatic changes; Chlorides; Phytoplankton; Dissolved oxygen; Sulphates; Community composition; Baseline studies; Lakes; Water hardness; Natural resources; Latitudinal variations; Species diversity; Environmental conditions; Turbidity; Ecosystem management; National parks; Monitoring; Water chemistry; Indicator species; Bioindicators; Sulfates; Water quality measurements; Temperature; Natural Resources; Indicators; Dissolved Oxygen; Surveys; Hardness; Algae; North America, Great Lakes; Freshwater DO - http://dx.doi.org/10.1080/14634980490513265 ER - TY - JOUR T1 - Retrospective pathology survey of green turtles Chelonia mydas with fibropapillomatosis in the Hawaiian Islands, 1993-2003 AN - 17578333; 6153327 AB - We necropsied 255 stranded green turtles Chelonia mydas with fibropapillomatosis (FP) from the Hawaiian Islands, North Pacific, from August 1993 through May 2003. Of these, 214 (84%) were euthanized due to advanced FP and the remainder were found dead in fresh condition. Turtles were assigned a standardized tumor severity score ranging from 1 (lightly tumored) to 3 (heavily tumored). Tumors were counted and measured and categorized as external, oral, or internal and tissues evaluated by light microscopy. Turtles in tumor score 2 and 3 categories predominated, and tumor score 3 turtles were significantly larger than the other 2 categories. More juveniles stranded than subadults or adults. Total cross-sectional area of tumors increased significantly with straight carapace length (SCL). Frequency distribution of total number of external tumors per turtle was significantly skewed to the right, and there were significantly more tumors at the front than rear of turtles. Eighty percent of turtles had oral tumors, and 51% of turtles with oral tumors had tumors in the glottis. Thirty-nine percent of turtles had internal tumors, most of them in the lung, kidney and heart. Fibromas predominated in lung, kidney and musculoskeletal system whereas myxofibromas were more common in intestines and spleen. Fibrosarcomas of low-grade malignancy were most frequent in the heart, and heart tumors had a predilection for the right atrium. Turtles with FP had significant additional complications including inflammation with vascular flukes, bacterial infections, poor body condition, and necrosis of salt gland. Turtles with oral tumors were more likely to have secondary complications such as pneumonia. Most turtles came from the Island of Oahu (74%) followed by Maui (20%), Hawaii, Molokai, and Lanai (< 3% each). On Oahu, significantly more turtles we necropsied stranded along the northwestern and northeastern shores. JF - Diseases of Aquatic Organisms AU - Work, T M AU - Balazs, G H AU - Rameyer, R A AU - Morris, R A AD - US Geological Survey, National Wildlife Health Center, Hawaii Field Station, 300 Ala Moana Blvd., Room 5-231, Honolulu, HI 96850, USA, thierry_work@usgs.gov Y1 - 2004/11/23/ PY - 2004 DA - 2004 Nov 23 SP - 163 EP - 176 VL - 62 IS - 1-2 SN - 0177-5103, 0177-5103 KW - Green sea turtle KW - Green turtle KW - Necropsy KW - SEM KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Oceanic Abstracts KW - Marine KW - Aquatic reptiles KW - ISE, USA, Hawaii KW - Muscles KW - Histopathology KW - Rare species KW - Stranding KW - Long-term records KW - Chelonia mydas KW - Glands KW - Tumours KW - Mortality causes KW - Body organs KW - O 1070:Ecology/Community Studies KW - Q5 08523:Conservation, wildlife management and recreation KW - Q1 08484:Species interactions: parasites and diseases UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17578333?accountid=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=Diseases+of+Aquatic+Organisms&rft.atitle=Retrospective+pathology+survey+of+green+turtles+Chelonia+mydas+with+fibropapillomatosis+in+the+Hawaiian+Islands%2C+1993-2003&rft.au=Work%2C+T+M%3BBalazs%2C+G+H%3BRameyer%2C+R+A%3BMorris%2C+R+A&rft.aulast=Work&rft.aufirst=T&rft.date=2004-11-23&rft.volume=62&rft.issue=1-2&rft.spage=163&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 revised - 2009-07-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Long-term records; Glands; Aquatic reptiles; Muscles; Histopathology; Rare species; Tumours; Stranding; Mortality causes; Body organs; Chelonia mydas; ISE, USA, Hawaii; Marine ER - TY - JOUR T1 - Comparison of Seven Protocols To Identify Fecal Contamination Sources Using Escherichia coli AN - 19768057; 6237278 AB - Microbial source tracking (MST) uses various approaches to classify fecal-indicator microorganisms to source hosts. Reproducibility, accuracy, and robustness of seven phenotypic and genotypic MST protocols were evaluated by use of Escherichia coli from an eight-host library of known-source isolates and a separate, blinded challenge library. In reproducibility tests, measuring each protocol's ability to reclassify blinded replicates, only one (pulsed-field gel electrophoresis; PFGE) correctly classified all test replicates to host species; three protocols classified 48-62% correctly, and the remaining three classified fewer than 25% correctly. In accuracy tests, measuring each protocol's ability to correctly classify new isolates, ribotyping with EcoRI and PvuII approached 100% correct classification but only 6% of isolates were classified; four of the other six protocols (antibiotic resistance analysis, PFGE, and two repetitive-element PCR protocols) achieved better than random accuracy rates when 30-100% of challenge isolates were classified. In robustness tests, measuring each protocl's ability to recognize isolates from nonlibrary hosts, three protocols correctly classified 33-100% of isolates as "unknown origin," whereas four protocols classified all isolates to a source category. A relevance test, summarizing interpretations for a hypothetical water sample containing 30 challenge isolates, indicated that false-positive classifications would hinder interpretations for most protocols. Study results indicate that more representation in known-source libraries and better classification accuracy would be needed before field application. Thorough reliability assessment of classification results is crucial before and during application of MST protocols. JF - Environmental Science & Technology AU - Stoeckel, D M AU - Mathes, M V AU - Hyer, KE AU - Hagedorn, C AU - Kator, H AU - Lukasik, J AU - O'Brien, T L AU - Fenger, T W AU - Samadpour, M AU - Strickler, K M AU - Wiggins, BA AD - U.S. Geological Survey, 6480 Doubletree Avenue, Columbus, Ohio 43229, USA, stoeckel@usgs.gov Y1 - 2004/11/15/ PY - 2004 DA - 2004 Nov 15 SP - 6109 EP - 6117 VL - 38 IS - 22 SN - 0013-936X, 0013-936X KW - Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Analytical Methods KW - Testing Procedures KW - Contamination KW - Classification KW - Escherichia coli KW - J 02310:Genetics & Taxonomy KW - P 2000:FRESHWATER POLLUTION KW - SW 3010:Identification of pollutants KW - A 01116:Bacteria KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19768057?accountid=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=Comparison+of+Seven+Protocols+To+Identify+Fecal+Contamination+Sources+Using+Escherichia+coli&rft.au=Stoeckel%2C+D+M%3BMathes%2C+M+V%3BHyer%2C+KE%3BHagedorn%2C+C%3BKator%2C+H%3BLukasik%2C+J%3BO%27Brien%2C+T+L%3BFenger%2C+T+W%3BSamadpour%2C+M%3BStrickler%2C+K+M%3BWiggins%2C+BA&rft.aulast=Stoeckel&rft.aufirst=D&rft.date=2004-11-15&rft.volume=38&rft.issue=22&rft.spage=6109&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes0354519 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-07-01 N1 - Last updated - 2014-02-11 N1 - SubjectsTermNotLitGenreText - Classification; Contamination; Testing Procedures; Escherichia coli DO - http://dx.doi.org/10.1021/es0354519 ER - TY - JOUR T1 - Temporal and Spatial Trends in Fish Communities Inhabiting Two Freshwater Tidal Wetlands of the Cooper River, South Carolina AN - 19769902; 6786803 AB - From April 1999 through February 2000, we electroflshed fixed transects in two freshwater tidal wetlands of the Cooper River, South Carolina, to examine how spatial and temporal variation in these habitats influenced fish community composition. The Dean Hall site consisted of a collection of tidal creeks with intertidal, emergent vegetation and large fluctuations in submersed habitat due to tide. The Bonneau Ferry site was lacustrine, dominated by submergent vegetation, and fluctuated very little with the tide. We found 34 total species. Most were a species of Centrarchidae (41%) or an estuarine migrant (27%). Abundance and species richness varied among months, with a peak in April and June. Differences in fish community structures were noted between wetlands with Dean Hall generally containing a more specious, but variable, community whereas Bonneau Ferry contained a more stable fish community with slightly fewer species. Moreover, the Dean Hall fish community tended to be predominated more by Centrarchidae species whereas Bonneau Ferry contained more estuarine migratory species. Our results fill a void in the understanding of fish communities in southeastern U.S. wetlands by targeting the large-bodied fishes and add to the understanding of seasonal diversity in these systems. Moreover, our results underscore the need to study a diversity of wetland types to best discover fish community dynamics within a river system. JF - Proceedings of the Annual Conference of the Southeastern Association of Fish and Wildlife Agencies AU - Long, J M AU - McManus, M G AU - Bulak, J S AD - National Park Service, 1978 Island Ford Parkway, Atlanta, GA 30350, USA Y1 - 2004/11/03/ PY - 2004 DA - 2004 Nov 03 SP - 174 EP - 186 PB - Southeastern Association of Fish and Wildlife Agencies, 7221 Covey Trace Tallahassee FL 32308 USA IS - 58 KW - Sunfishes KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Rivers KW - Conferences KW - Freshwater environments KW - Centrarchidae KW - Estuaries KW - Brackish KW - ANW, USA, South Carolina KW - Vegetation KW - Biodiversity KW - Freshwater KW - Habitat KW - Freshwater fish KW - Inland water environment KW - Tides KW - Community composition KW - Migratory species KW - Species diversity KW - USA, South Carolina, Cooper R. KW - Brackishwater environment KW - Wetlands KW - Species richness KW - Q1 08421:Migrations and rhythms KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19769902?accountid=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=Proceedings+of+the+Annual+Conference+of+the+Southeastern+Association+of+Fish+and+Wildlife+Agencies&rft.atitle=Temporal+and+Spatial+Trends+in+Fish+Communities+Inhabiting+Two+Freshwater+Tidal+Wetlands+of+the+Cooper+River%2C+South+Carolina&rft.au=Long%2C+J+M%3BMcManus%2C+M+G%3BBulak%2C+J+S&rft.aulast=Long&rft.aufirst=J&rft.date=2004-11-03&rft.volume=&rft.issue=58&rft.spage=174&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Annual+Conference+of+the+Southeastern+Association+of+Fish+and+Wildlife+Agencies&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Community composition; Migratory species; Species diversity; Estuaries; Biodiversity; Brackishwater environment; Wetlands; Freshwater fish; Inland water environment; Rivers; Conferences; Freshwater environments; Vegetation; Habitat; Species richness; Tides; Centrarchidae; USA, South Carolina, Cooper R.; ANW, USA, South Carolina; Brackish; Freshwater ER - TY - JOUR T1 - A systems-based food safety evaluation: an experimental approach. AN - 67075926; 15552700 AB - Food establishments are complex systems with inputs, subsystems, underlying forces that affect the system, outputs, and feedback. Building on past exploration of the hazard analysis critical control point concept and Ludwig von Bertalanffy General Systems Theory, the National Park Service (NPS) is attempting to translate these ideas into a realistic field assessment of food service establishments and to use information gathered by these methods in efforts to improve food safety. Over the course of the last two years, an experimental systems-based methodology has been drafted, developed, and tested by the NPS Public Health Program. This methodology is described in this paper. JF - Journal of environmental health AU - Higgins, Charles L AU - Hartfield, Barry S AD - Public Health Program, National Park Service, Washington, DC 20005, USA. Charles_Higgins@nps.gov Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 9 EP - 14, 28 VL - 67 IS - 4 SN - 0022-0892, 0022-0892 KW - Index Medicus KW - United States KW - Recreation KW - Humans KW - Food Handling KW - Federal Government KW - Organizational Case Studies KW - Food Contamination -- prevention & control KW - Food Services -- standards KW - Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67075926?accountid=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+environmental+health&rft.atitle=A+systems-based+food+safety+evaluation%3A+an+experimental+approach.&rft.au=Higgins%2C+Charles+L%3BHartfield%2C+Barry+S&rft.aulast=Higgins&rft.aufirst=Charles&rft.date=2004-11-01&rft.volume=67&rft.issue=4&rft.spage=9&rft.isbn=&rft.btitle=&rft.title=Journal+of+environmental+health&rft.issn=00220892&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-02-07 N1 - Date created - 2004-11-19 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Comment In: J Environ Health. 2005 Mar;67(7):64 [15794466] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Changes in the middle Rio Grande due to the altered hydrology AN - 51759182; 2005-012589 AB - After large-scale flooding in the 1940s, a series of dams were constructed within the Middle Rio Grande reach (Cochiti dam to Elephant Butte Reservoir, approximately 175 river miles) to protect the public from the Rio Grande: Jemez (River) Dam (1953, permanent pool added in 1979); Galisteo (Creek) Dam (1970); and Cochiti Dam on the mainstem Rio Grande (1973). These three dams were constructed primarily to reduce peak flood flows through temporary water storage but they also permanently store sediment and organic debris. Along with these large dams are smaller irrigation diversion dams and a vast canal system that conveys water for agricultural consumption, drains wet soils, and captures groundwater for reuse. As with other rivers, the changed hydrology and sediment load associated with Cochiti dam operations appears to have been the most significant alteration to the Middle Rio Grande. Initially, the channel bed downstream of Cochiti dam coarsened and stabilized (Lagasse 1980) with operations, however, the most notable change throughout the reach has been a reversal from an aggrading river system with well connected floodplains and wetlands to a degrading channel. Near Cochiti dam the coarsening and degradation has created an easily identifiable transition zone that is at present 30 miles downstream of Cochiti dam (Ortiz 2003). Other notable channel changes have been planform changes in conjunction with narrowing, mixed sand/gravel appearance, incision, and channel location stability. As a consequence to similar physical changes throughout the entire watershed, the endangered Rio Grande silvery minnow, now resides only in the Middle Rio Grande reach. Channel incision and water/sediment storage appear to be the foremost changes contributing to this species decline. Although extensive water consumption has exacerbated the already ephemeral nature of the Rio Grande and directly affects the fish, water storage appears to be more influential for the fish through habitat change. Significant efforts are underway to create habitats suitable for the silvery minnow in the Middle Rio Grande; however, nearly the entire reach is currently in geomorphic transition. JF - Abstracts with Programs - Geological Society of America AU - Massong, Tamara M AU - Porter, Michael D AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 12 EP - 13 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - Rio Grande KW - hydrology KW - reservoirs KW - geologic hazards KW - Bernalillo County New Mexico KW - Socorro County New Mexico KW - sedimentation KW - rivers and streams KW - Sandoval County New Mexico KW - Cochiti Dam KW - New Mexico KW - rivers KW - fluvial sedimentation KW - Valencia County New Mexico KW - streamflow KW - dams KW - fluvial features KW - floods KW - geomorphology KW - flood control KW - Elephant Butte Reservoir KW - incised valleys KW - 23:Geomorphology KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51759182?accountid=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=Changes+in+the+middle+Rio+Grande+due+to+the+altered+hydrology&rft.au=Massong%2C+Tamara+M%3BPorter%2C+Michael+D%3BAnonymous&rft.aulast=Massong&rft.aufirst=Tamara&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=12&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, 2004 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 - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Bernalillo County New Mexico; Cochiti Dam; dams; Elephant Butte Reservoir; flood control; floods; fluvial features; fluvial sedimentation; geologic hazards; geomorphology; hydrology; incised valleys; New Mexico; reservoirs; Rio Grande; rivers; rivers and streams; Sandoval County New Mexico; sedimentation; Socorro County New Mexico; streamflow; United States; Valencia County New Mexico ER - TY - JOUR T1 - Rise and fall of the Beringian steppe bison AN - 51756441; 2005-011526 AB - The widespread extinctions of large mammals at the end of the Pleistocene epoch have often been attributed to the depredations of humans; here we present genetic evidence that questions this assumption. We used ancient DNA and Bayesian techniques to reconstruct a detailed genetic history of bison throughout the late Pleistocene and Holocene epochs. Our analyses depict a large diverse population living throughout Beringia until around 37,000 years before the present, when the population's genetic diversity began to decline dramatically. The timing of this decline correlates with environmental changes associated with the onset of the last glacial cycle, whereas archaeological evidence does not support the presence of large populations of humans in Eastern Beringia until more than 15,000 years later. JF - Science AU - Shapiro, Beth AU - Drummond, Alexei J AU - Rambaut, Andrew AU - Wilson, Michael C AU - Matheus, Paul E AU - Sher, Andrei V AU - Pybus, Oliver G AU - Gilbert, M Thomas P AU - Barnes, Ian AU - Binladen, Jonas AU - Willerslev, Eske AU - Hansen, Anders J AU - Baryshnikov, Gennady F AU - Burns, James A AU - Davydov, Sergei AU - Driver, Jonathan C AU - Froese, Duane G AU - Harington, C Richard AU - Keddie, Grant AU - Kosintsev, Pavel AU - Kunz, Michael L AU - Martin, Larry D AU - Stephenson, Robert O AU - Storer, John AU - Tedford, Richard AU - Zimov, Sergei AU - Cooper, Alan Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 1561 EP - 1565 PB - American Association for the Advancement of Science, Washington, DC VL - 306 IS - 5701 SN - 0036-8075, 0036-8075 KW - land bridges KW - Ruminantia KW - terrestrial environment KW - Bayesian analysis KW - biogeography KW - paleoclimatology KW - climate change KW - Bovidae KW - paleoecology KW - Cenozoic KW - Theria KW - glacial environment KW - Bison KW - extinction KW - Eutheria KW - migration KW - Chordata KW - Quaternary KW - phylogeny KW - statistical analysis KW - Mammalia KW - Artiodactyla KW - models KW - Beringia KW - steppes KW - populations KW - paleoenvironment KW - DNA KW - Pleistocene KW - Vertebrata KW - Tetrapoda KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51756441?accountid=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=Science&rft.atitle=Rise+and+fall+of+the+Beringian+steppe+bison&rft.au=Shapiro%2C+Beth%3BDrummond%2C+Alexei+J%3BRambaut%2C+Andrew%3BWilson%2C+Michael+C%3BMatheus%2C+Paul+E%3BSher%2C+Andrei+V%3BPybus%2C+Oliver+G%3BGilbert%2C+M+Thomas+P%3BBarnes%2C+Ian%3BBinladen%2C+Jonas%3BWillerslev%2C+Eske%3BHansen%2C+Anders+J%3BBaryshnikov%2C+Gennady+F%3BBurns%2C+James+A%3BDavydov%2C+Sergei%3BDriver%2C+Jonathan+C%3BFroese%2C+Duane+G%3BHarington%2C+C+Richard%3BKeddie%2C+Grant%3BKosintsev%2C+Pavel%3BKunz%2C+Michael+L%3BMartin%2C+Larry+D%3BStephenson%2C+Robert+O%3BStorer%2C+John%3BTedford%2C+Richard%3BZimov%2C+Sergei%3BCooper%2C+Alan&rft.aulast=Shapiro&rft.aufirst=Beth&rft.date=2004-11-01&rft.volume=306&rft.issue=5701&rft.spage=1561&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.1101074 L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 32 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - Artiodactyla; Bayesian analysis; Beringia; biogeography; Bison; Bovidae; Cenozoic; Chordata; climate change; DNA; Eutheria; extinction; glacial environment; land bridges; Mammalia; migration; models; paleoclimatology; paleoecology; paleoenvironment; phylogeny; Pleistocene; populations; Quaternary; Ruminantia; statistical analysis; steppes; terrestrial environment; Tetrapoda; Theria; Vertebrata DO - http://dx.doi.org/10.1126/science.1101074 ER - TY - JOUR T1 - Crustal structure of the ancestral northwestern California forearc region from seismic reflection imaging; implications for convergent margin tectonics AN - 51730107; 2005-030489 AB - Analysis of a suite of 2-D seismic reflection profiles reveals that the northwestern Sacramento Valley and eastern Coast Range foothills, northern California, are underlain by a system of blind, west-dipping thrust faults. Homoclinally east-dipping and folded Mesozoic marine forearc strata exposed along the western valley margin define the forelimbs of northeast-vergent fault-propagation folds developed in the hanging walls of the thrusts. Exhumed coherent blueschists of the accretionary complex and attenuated remnants of the ophiolitic forearc basement presently exposed in the eastern Coast Ranges are in the hanging wall of the blind thrust system, and have been displaced from their roots in the footwall. Deep, east-dipping magnetic reflectors in the footwall of the thrust system may be fragments of sheared, serpentinized and attenuated ophiolitic basement. Restoration of slip on the thrusts suggests that the Coast Range fault, which is the exposed structural contact between the coherent blueschists and attenuated ophiolite, originally dipped east and is associated with the east-dipping magnetic reflectors in the footwall. This interpretation of the reflection data is consistent with previous inferences about the deep structure in this region, and supports a two-stage model for blueschist exposure in the eastern Coast Ranges: (1) blueschist exhumation relative to the forearc basin by attenuation of the ophiolitic basement along the east-dipping Coast Range fault system in late Cretaceous; (2) blueschists, attenuated ophiolite, and forearc strata all were subsequently uplifted and folded in the hanging wall of the blind thrust system beginning in latest Cretaceous-early Tertiary. The blind thrust system probably rooted in, and was antithetic to, the east-dipping subduction zone beneath the forearc region. Active transpressional plate motion in western California is locally accommodated, in part, by reactivation of blind thrust faults that originally developed during the convergent regime. JF - Tectonophysics AU - Unruh, Jeffrey AU - O'Connell, Daniel AU - Block, Lisa V A2 - Dilek, Yildirim A2 - Harris, Ron Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 219 EP - 240 PB - Elsevier, Amsterdam VL - 392 IS - 1-4 SN - 0040-1951, 0040-1951 KW - Sacramento Valley KW - data processing KW - elastic waves KW - continental crust KW - California KW - Cortina Formation KW - blind faults KW - folds KW - metamorphic rocks KW - faults KW - systems KW - body waves KW - schists KW - basement KW - ophiolite KW - correlation KW - seismic methods KW - plate tectonics KW - Sacramento Basin KW - homoclines KW - surveys KW - geophysical profiles KW - Boxer Formation KW - seismic waves KW - fold and thrust belts KW - crust KW - United States KW - P-waves KW - imagery KW - geophysical surveys KW - Rumsey Formation KW - Cretaceous KW - Lodoga Formation KW - neotectonics KW - Tehama Formation KW - basins KW - tectonics KW - blueschist KW - seismic profiles KW - geophysical methods KW - magnetic methods KW - reflection methods KW - fore-arc basins KW - deformation KW - plate convergence KW - Mesozoic KW - Stony Creek Formation KW - Coast Ranges KW - thrust faults KW - 16:Structural geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51730107?accountid=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=Tectonophysics&rft.atitle=Crustal+structure+of+the+ancestral+northwestern+California+forearc+region+from+seismic+reflection+imaging%3B+implications+for+convergent+margin+tectonics&rft.au=Unruh%2C+Jeffrey%3BO%27Connell%2C+Daniel%3BBlock%2C+Lisa+V&rft.aulast=Unruh&rft.aufirst=Jeffrey&rft.date=2004-11-01&rft.volume=392&rft.issue=1-4&rft.spage=219&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/10.1016%2Fj.tecto.2004.04.018 L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 40 N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - basement; basins; blind faults; blueschist; body waves; Boxer Formation; California; Coast Ranges; continental crust; correlation; Cortina Formation; Cretaceous; crust; data processing; deformation; elastic waves; faults; fold and thrust belts; folds; fore-arc basins; geophysical methods; geophysical profiles; geophysical surveys; homoclines; imagery; Lodoga Formation; magnetic methods; Mesozoic; metamorphic rocks; neotectonics; ophiolite; P-waves; plate convergence; plate tectonics; reflection methods; Rumsey Formation; Sacramento Basin; Sacramento Valley; schists; seismic methods; seismic profiles; seismic waves; Stony Creek Formation; surveys; systems; tectonics; Tehama Formation; thrust faults; United States DO - http://dx.doi.org/10.1016/j.tecto.2004.04.018 ER - TY - JOUR T1 - Using repeat photography to document the landscape and vegetative evolution of the Glacier Bay area, Glacier Bay National Park, Alaska AN - 51718395; 2005-037170 AB - Historical photographs of the Glacier Bay area, made between the l880s and 1980 by mapping surveys, early scientific expeditions, geological and glaciological investigators, and early tourists, are being used as part of an integrated effort to characterize the evolution of Glacier Bay's landscapes and vegetation. The historical photographs, obtained from multiple sources, including several national archives, are analyzed to document former landscape parameters including: glacier extent and terminus position, vegetation distribution and type, wetland location and extent, and sediment distribution. Nearly all of the historical photographs lack metadata, most significantly camera, lens, and film data, and the geographic coordinates of the photo-point from which the photographs were made. Field investigations conducted in 2003 and 2004, with historical photographs in hand, identified and revisited more than 100 photo-points where historical photographs were made. The latitude, longitude, and elevation of each photo-point were determined with G.P.S. Similarly, the bearing from the photo-point to the geographic feature corresponding to the center of the historical photograph was determined with Brunton Compass or G.P.S. At each location, a suite of digital images and color-film photographs were made of the same areas displayed in the historical photographs, often using lenses of different focal length. As many of the historical photographs were made with panoramic or mapping cameras, mosaicing and cropping were frequently necessary to reproduce the historical field-of-view. Comparisons of historical and modern photo-pairs document the timing and magnitude of post-Little-Ice-Age glacier retreat and subsequent variability. Also evident is the rapid influx of vegetation and the transformation and progression from essentially bare bedrock to forest. Annotated photo-pairs are being posted on publicly-accessible websites and provided to National Park Service managers and interpreters. In 2004, similar studies are being initiated in Kenai Fjords and Denali National Parks. JF - Abstracts with Programs - Geological Society of America AU - Molnia, Bruce F AU - Karpilo, Ronald D, Jr AU - Pranger, Harold S AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 124 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - processes KW - glaciation KW - Southeastern Alaska KW - Glacier Bay KW - landform evolution KW - ecology KW - Alaska KW - geomorphology KW - vegetation KW - Glacier Bay National Park KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51718395?accountid=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=Using+repeat+photography+to+document+the+landscape+and+vegetative+evolution+of+the+Glacier+Bay+area%2C+Glacier+Bay+National+Park%2C+Alaska&rft.au=Molnia%2C+Bruce+F%3BKarpilo%2C+Ronald+D%2C+Jr%3BPranger%2C+Harold+S%3BAnonymous&rft.aulast=Molnia&rft.aufirst=Bruce&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=124&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, 2004 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 - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Alaska; ecology; geomorphology; glaciation; Glacier Bay; Glacier Bay National Park; landform evolution; processes; Southeastern Alaska; United States; vegetation ER - TY - JOUR T1 - A baseline study of evaporative water chemistry and microbial mat diversity from alkaline lakes in Warner Valley, Oregon AN - 51703807; 2005-046379 AB - Warner Valley, Oregon is an alluvial system containing numerous geothermal springs and evaporative lakes underlain and hosted by basaltic flows and deposits from Pleistocene Lake Warner. Alkaline, fresh to brackish lakes in the northern end of Warner Valley are well suited to long-term study being located within an Area of Critical Environmental Concern (ACEC) under management of the BLM. ACEC is relatively free of agricultural and anthropogenic activities, but is seasonally perturbed by large numbers of migrating Arctic Swans. Springs typically originate from fractures within the Miocene Steens Mountain Basalt, are bicarbonate dominated, have temperatures ranging from 8.9 to 71.2 degrees C and pH from 6.5 to 8.3. Calcium is the dominant cation during the colder, wetter months whereas Na (super +) becomes significant during the warmer, evaporative months. Warmer springs contain both green and gold algal mats. Water chemistries of the lakes exhibit a strong seasonality and range from moderately to highly alkaline to sulfate-chloride and chloride-sulfate dominated with a range in pH from 8.3 to 10.5. Lakes are relatively dilute in late fall through early spring as much of the water originates from snow melt with a minor geothermal component. Lake waters undergo significant evaporative concentration from late spring through the summer. Within this context, the lakes host a wide variety of chemistries and algal/bacterial mats (purple, green, and gold). In particular, Anderson Lake contains Arsenic ranging from 600-700 ppb, is a Na-Cl dominated chemistry with pH=8.6, TDS=4560, and hosts a complex purple-sulfur bacteria population. JF - Abstracts with Programs - Geological Society of America AU - Finkelstein, David B AU - Munhall, Alan AU - Pratt, Lisa M AU - Bauer, Carl E AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 87 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - Anderson Lake KW - ground water KW - Lake County Oregon KW - Cenozoic KW - Oregon KW - algal mats KW - Lake Warner KW - springs KW - sedimentary structures KW - geochemistry KW - pH KW - baseline studies KW - hydrology KW - Quaternary KW - biogenic structures KW - surface water KW - arsenic KW - Warner Valley KW - hydrochemistry KW - thermal waters KW - alkalic composition KW - algal structures KW - limnology KW - evaporation KW - extinct lakes KW - brackish water KW - metals KW - sulfur KW - Pleistocene KW - seasonal variations KW - hot springs KW - 02B:Hydrochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51703807?accountid=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+baseline+study+of+evaporative+water+chemistry+and+microbial+mat+diversity+from+alkaline+lakes+in+Warner+Valley%2C+Oregon&rft.au=Finkelstein%2C+David+B%3BMunhall%2C+Alan%3BPratt%2C+Lisa+M%3BBauer%2C+Carl+E%3BAnonymous&rft.aulast=Finkelstein&rft.aufirst=David&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=87&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, 2004 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 - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - algal mats; algal structures; alkalic composition; Anderson Lake; arsenic; baseline studies; biogenic structures; brackish water; Cenozoic; evaporation; extinct lakes; geochemistry; ground water; hot springs; hydrochemistry; hydrology; Lake County Oregon; Lake Warner; limnology; metals; Oregon; pH; Pleistocene; Quaternary; seasonal variations; sedimentary structures; springs; sulfur; surface water; thermal waters; United States; Warner Valley ER - TY - JOUR T1 - Hot dates with clinker; a tool to assess landscape evolution in the Powder River basin AN - 51703201; 2005-049367 AB - In the Powder River basin (PRB) of southeast Montana and northeast Wyoming, gently-dipping coal beds exposed by regional downwasting have burned naturally from at least the Pliocene to the present. More than four thousand square kilometers of reddish clinker deposits--formed by the baking, fusing, and melting of layers of sediment originally lying above burned coal beds--cap ridges and escarpments throughout the dissected landscape of the PRB. It is literally a landscape formed by fire--albeit many separate fires in many different places over the past few million years. (U-Th)/He and fission-track ages of zircon grains from baked sandstones in clinker provide new insights about rates of regional erosion as well as the episodic advance of coal fires into hillslopes. Older, resistant clinker layers up to 60 meters thick, formed by the burning of thick coal beds, control downwasting, and limited new data indicate that narrow rims of thinner clinker on the sides of valleys between these thick layers are much younger. This pattern suggests that downcutting of streams and backwasting of slopes dominate over downwasting of the clinker-supported flat divides between drainages. We are concentrating on dating clinker from the Wyodak-Anderson and Knobloch coal zones of the Fort Union Formation in two areas: the Rochelle Hills east of Wright, Wyoming, and the Tongue River valley near Ashland and Birney, Montana. Additional ages have been obtained on clinker samples from the Felix and Lake de Smet coal zones in the Wasatch Formation. Recently determined (U/Th)/He ages of clinker from these areas range from as old as approximately 1.1 Ma to as young as 10 ka. These ages generally agree with fission-track ages of clinker analyzed in the early 1980's, but have established a higher precision record of the spatial-temporal pattern of ancient coal fires in the region. Dates so far indicate about 200 to 400 meters of downcutting in the past million years by major river systems in the basin. Our ongoing (U-Th)/He dating analyses will enable us to better map the pattern of fluvial incision and slope retreat in the PRB over space and time, and to weigh the relative importance of uplift, variations in climate, and base level change in exhuming the PRB during late Cenozoic time. JF - Abstracts with Programs - Geological Society of America AU - Heffern, Edward L AU - Reiners, Peter W AU - Coates, Donald A AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 43 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - alteration KW - thermal alteration KW - erosion KW - erosion rates KW - Campbell County Wyoming KW - southeastern Montana KW - fires KW - Cenozoic KW - (U-Th)/He KW - sedimentary rocks KW - dates KW - coal KW - absolute age KW - northeastern Wyoming KW - exhumation KW - Fort Union Formation KW - Powder River basin KW - Quaternary KW - landform evolution KW - Montana KW - fission-track dating KW - clinker KW - Wyoming KW - geomorphology KW - Rosebud County Montana KW - incised valleys KW - 23:Geomorphology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51703201?accountid=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=Hot+dates+with+clinker%3B+a+tool+to+assess+landscape+evolution+in+the+Powder+River+basin&rft.au=Heffern%2C+Edward+L%3BReiners%2C+Peter+W%3BCoates%2C+Donald+A%3BAnonymous&rft.aulast=Heffern&rft.aufirst=Edward&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=43&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, 2004 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 - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - (U-Th)/He; absolute age; alteration; Campbell County Wyoming; Cenozoic; clinker; coal; dates; erosion; erosion rates; exhumation; fires; fission-track dating; Fort Union Formation; geomorphology; incised valleys; landform evolution; Montana; northeastern Wyoming; Powder River basin; Quaternary; Rosebud County Montana; sedimentary rocks; southeastern Montana; thermal alteration; United States; Wyoming ER - TY - JOUR T1 - Anastomosing fluvial system of the Cedar Mountain Formation, eastern Utah; a paleoenvironmental and taphonomic analysis AN - 51703195; 2005-046207 AB - An anastomosing river system has been identified within the Ruby Ranch Member (RRM) of the Lower Cretaceous Cedar Mountain Formation (CMF) of Utah and western Colorado. By characterizing typical features of fluvial channel bodies in the RRM, we have recognized that a particularly anomalous, dinosaur bone-bearing sand body in the RRM developed as a waterhole, or channel intersection, in this anastomosing system. Compilation and correlation of multiple stratigraphic sections, analysis of individual channel characteristics and overall fluvial architecture of the RRM, combined with flume experiments designed to simulate the behavior of RRM channels, allows detailed paleoenvironmental interpretation. The RRM is dominated by horizons of mudstones with extensive and pedogenic calcretes, but is punctuated by isolated, single-story sandy to pebbly channel bodies. Analysis of channels shows pronounced similarities in the behavior of geographically isolated channels, including channel widths of approximately 100 m, depths approximately 2 m, and D90 of 8-16 mm. Low sinuousity, downstream bifurcation, and extremely rare lateral accretion surfaces further characterize anabranching, rather than meandering, channels. Lateral migration of channels and channel incision were limited by the presence of indurated calcretes below channels and at channel margins. A modern analog at Cooper Creek, Australia provides an explanation for a taphonomic enigma of the RRM. At Dinosaur National Monument, a bone-bearing sandstone bed has produced the first sauropod skull from the Early Cretaceous of North America, along with bones of several other dinosaur taxa. The sandstone fill of the bone bed is unusual in the RRM. It is approximately 4 m thick, and exhibits 0.5-1 m flights of climbing ripples, whereas trough-cross bedding is the typical fill of RRM channel bodies. In flume experiments and in the modern behavior of Cooper Creek, deep scour (waterhole) occurs at the intersection of anabranching channels. We suggest that a deep scour or waterhole formed in the RRM fluvial system, and was filled rapidly during a flooding event, enabling rapid burial and preservation of fossil material. Data for this study was gathered during the summers of 2002-2004 by 24 participants in the NSF-sponsored "Reconstructing Rivers" Research Experience for Undergraduates. JF - Abstracts with Programs - Geological Society of America AU - Masters, Simon L AU - Maxson, Julie A AU - Madsen, Scott K AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 60 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - lithostratigraphy KW - Diapsida KW - Cretaceous KW - sandstone KW - Ruby Ranch Member KW - eastern Utah KW - Dinosaur National Monument KW - Uintah County Utah KW - sand bodies KW - paleoecology KW - Sauropoda KW - Archosauria KW - skull KW - sedimentary rocks KW - Cedar Mountain Formation KW - taphonomy KW - dinosaurs KW - depositional environment KW - sedimentary structures KW - Lower Cretaceous KW - experimental studies KW - Chordata KW - modern analogs KW - channels KW - paleogeography KW - Mesozoic KW - flume studies KW - Sauropodomorpha KW - Reptilia KW - planar bedding structures KW - paleoenvironment KW - Saurischia KW - streams KW - Utah KW - Vertebrata KW - braided streams KW - fluvial environment KW - clastic rocks KW - Tetrapoda KW - field studies KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51703195?accountid=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=Anastomosing+fluvial+system+of+the+Cedar+Mountain+Formation%2C+eastern+Utah%3B+a+paleoenvironmental+and+taphonomic+analysis&rft.au=Masters%2C+Simon+L%3BMaxson%2C+Julie+A%3BMadsen%2C+Scott+K%3BAnonymous&rft.aulast=Masters&rft.aufirst=Simon&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=60&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, 2004 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 - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Archosauria; braided streams; Cedar Mountain Formation; channels; Chordata; clastic rocks; Cretaceous; depositional environment; Diapsida; Dinosaur National Monument; dinosaurs; eastern Utah; experimental studies; field studies; flume studies; fluvial environment; lithostratigraphy; Lower Cretaceous; Mesozoic; modern analogs; paleoecology; paleoenvironment; paleogeography; planar bedding structures; Reptilia; Ruby Ranch Member; sand bodies; sandstone; Saurischia; Sauropoda; Sauropodomorpha; sedimentary rocks; sedimentary structures; skull; streams; taphonomy; Tetrapoda; Uintah County Utah; United States; Utah; Vertebrata ER - TY - JOUR T1 - Thirteen decades of scientific discovery at the Florissant fossil beds, Colorado AN - 51702929; 2005-049345 AB - The fossils from Florissant have been known and studied for more than 130 years. These scientific studies not only have described 1700 species from Florissant, but they also have contributed to our broader understanding of paleoclimate, paleoecology, paleobiogeography, evolution, and taphonomy. The first fossil collections from Florissant were made in 1871 by T. L. Mead, a 19 year-old college student. A. C. Peale of the Hayden Survey visited the site in 1873 and mentioned it in his 1874 report. In 1877, a student-organized expedition from Princeton spent two days and acquired a large collection from Florissant, with many of these specimens later designated as types. S. H. Scudder visited Florissant three times and published many papers on the fossil insects in which he described about 600 species, profoundly influencing the developing field of paleoentomology in America. Leo Lesquereux, an early American paleobotanist, was the first to publish a scientific paper about Florissant and to name the fossil plants. E. D. Cope published on fossil fish between 1874 and 1883. W. Kirchner published on fossil plants in 1898. One of the most influential contributors to the scientific study of Florissant was T. D. A. Cockerell, who organized expeditions from 1906 through 1908 and published 140 papers on Florissant. C. T. Brues, a professor at Harvard, worked on fossil bees and wasps from 1906 through 1910. H. F. Wickham worked on fossil beetles between 1907 and 1908. F. H. Knowlton published on fossil plants in 1916. F. M. Carpenter published a monograph on fossil ants in 1930. Harry D. MacGinitie excavated three sites in 1936 and 1937, and published Fossil Plants of the Florissant Fossil Beds, Colorado in 1953, the most comprehensive work to study and revise Florissant's plants. He was the first to consider the broader implications of Florissant's fossils, such as the stratigraphic context, paleoecology, paleoclimate, and paleoelevation. MacGinitie also recognized the taphonomic biases in the fossil plant record, the potential rapidity of the Eocene-Oligocene climate change, and that lineages can persist in a region by adapting to climate change. More recent research has dealt with multiple organ reconstructions of extinct plant genera, paleoelevation, plant-insect interactions, the role of biofilms in taphonomy, and palynology. JF - Abstracts with Programs - Geological Society of America AU - Veatch, Steven W AU - Meyer, Herbert W AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 39 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - fossil localities KW - collecting KW - Eocene KW - Paleogene KW - public lands KW - history KW - Cenozoic KW - Tertiary KW - national monuments KW - Florissant Lake Beds KW - paleolimnology KW - Florissant Fossil Beds National Monument KW - upper Eocene KW - lacustrine environment KW - Teller County Colorado KW - Colorado KW - Oligocene KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51702929?accountid=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=Thirteen+decades+of+scientific+discovery+at+the+Florissant+fossil+beds%2C+Colorado&rft.au=Veatch%2C+Steven+W%3BMeyer%2C+Herbert+W%3BAnonymous&rft.aulast=Veatch&rft.aufirst=Steven&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=39&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, 2004 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 - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Cenozoic; collecting; Colorado; Eocene; Florissant Fossil Beds National Monument; Florissant Lake Beds; fossil localities; history; lacustrine environment; national monuments; Oligocene; Paleogene; paleolimnology; public lands; Teller County Colorado; Tertiary; United States; upper Eocene ER - TY - JOUR T1 - Evaluation of geologic sites as national natural landmarks; process and case study AN - 51701197; 2005-046178 AB - The National Natural Landmarks (NNL) Program, established in 1962 and administered within the National Park Service, identifies and provides recognition to the best examples of geological features and biological communities that comprise the nation's natural heritage. The NNL Program encourages the preservation of nationally significant areas, enhances the educational and scientific value of sites, and works to strengthen public awareness and appreciation of natural history. Property under any ownership, public or private, may be designated, with owner consent. Following a decade-long hiatus in new designations, the NNL Program is re-engaged in assessing areas for possible designation. At present, the Program considers a much more complete representation of geology, as contrasted with a focus on scenic landforms and geologic history during the first decades of the Program. Current national significance criteria emphasize the scientific merits of sites considered as possible landmarks. National significance is determined on a regional basis. That is, sites are evaluated to determine whether or not they represent one of the best examples of a type of geological feature within a particular region. Site evaluations are collaborative efforts of geo- and bio-scientists. Recommendations on national significance are subject to a peer review process. An area in southern California is being simultaneously evaluated for its stratigraphic and paleontologic significance and as an illustrative example of a chaparral-coastal sage scrub community. The proposed landmark includes a thick section of Cretaceous to Quaternary marine and non-marine sedimentary strata. In addition to assessment of the site's geologic merits, initial studies are revealing close associations between geologic substrate and vegetation. The process and results of this evaluation will be discussed. JF - Abstracts with Programs - Geological Society of America AU - Sawlan, Michael G AU - Murchey, Benita AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 55 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - case studies KW - California KW - programs KW - Southern California KW - U. S. National Park Service KW - geologic sites KW - conservation KW - site exploration KW - government agencies KW - landforms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51701197?accountid=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=Evaluation+of+geologic+sites+as+national+natural+landmarks%3B+process+and+case+study&rft.au=Sawlan%2C+Michael+G%3BMurchey%2C+Benita%3BAnonymous&rft.aulast=Sawlan&rft.aufirst=Michael&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=55&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, 2004 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 - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - California; case studies; conservation; geologic sites; government agencies; landforms; programs; site exploration; Southern California; U. S. National Park Service; United States ER - TY - JOUR T1 - Geological Society of America, 2004 annual meeting AN - 51700847; 2005-046173 AB - The National Park Service is currently involved in an encompassing effort to evaluate the geologic resources in some 272 NPS units throughout the country. This involves conducting scoping meetings, assembling geologic bibliographies of all known applicable references, producing geologic maps (bedrock, surficial, abandoned mines, caves, coastal features, etc.), and then assembling all of this information into a usable database. Currently, much of the work revolves around discerning existing geologic map coverage (map type, scale, detail, vintage, usefulness, etc.). To develop this information, much data-mining is needed in cooperation with the USGS, AASG, and academics to evaluate existing index maps of known geologic coverage. The NPS is using "GIS" data to assemble these maps to pinpoint areas of known coverage, as well as to target areas of no known coverage. This serves as the basis for recommending mapping needs in NPS areas. JF - Abstracts with Programs - Geological Society of America AU - Connors, Tim AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 54 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - resources KW - U. S. National Park Service KW - government agencies KW - data processing KW - national parks KW - public lands KW - geographic information systems KW - natural resources KW - data bases KW - information systems KW - technical cooperation KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51700847?accountid=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=Geological+Society+of+America%2C+2004+annual+meeting&rft.au=Connors%2C+Tim%3BAnonymous&rft.aulast=Connors&rft.aufirst=Tim&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=54&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, 2004 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 - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - data bases; data processing; geographic information systems; government agencies; information systems; land use; national parks; natural resources; public lands; resources; technical cooperation; U. S. National Park Service; United States ER - TY - JOUR T1 - Introduction to paleontology and the fossils of Florissant 101; an Internet-based college paleontology course AN - 51700478; 2005-049357 AB - Florissant Fossil Beds National Monument preserves much of the world-class Florissant Formation. The National Park Service is tasked with preserving this significant fossil assemblage for scientific research and educating the public about the importance of these fossil resources. Previously, Florissant Fossil Beds N.M. has focused many efforts on designing curriculum-based activities for the K-12 levels. The recent completion of the on-line Florissant Fossil Database, which documents all published specimens from Florissant, has led to an opportunity to reach higher level audiences. The University of Colorado at Colorado Springs and Florissant Fossil Beds National Monument are currently in the process of creating an internet-based college paleontology curriculum that is based upon the fossil database. The course design will be a series of interactive research labs based upon the following subject areas: process of science, geologic history, climate change, fossil insect and plant identification, taxonomy, and paleontology. The labs are closely tied to the fossil database and will use "specimens" from the database. Each interactive lab is designed to be completed at one sitting (45 minutes). This on-line course will greatly expand the Monument's capabilities to reach advanced students. Each year, the Monument is visited by hundreds of college students. These on-line units will provide students and professors with meaningful pre-trip or post-trip activities. In addition, students that may never reach the Monument will be able to explore the Florissant Formation. The course, as a whole, is designed for geology students at the introductory level with an interest in paleontology. Some of the labs will be practical for more advanced geology and paleontology students. JF - Abstracts with Programs - Geological Society of America AU - Wolin, Jeff AU - Sparks, Kelly AU - Meyer, Herbert W AU - Lutz-Ryan, Linda AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 41 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - data processing KW - education KW - paleontology KW - Cenozoic KW - college-level education KW - national monuments KW - Florissant Lake Beds KW - paleolimnology KW - Florissant Fossil Beds National Monument KW - data bases KW - curricula KW - academic institutions KW - computer networks KW - Eocene KW - Paleogene KW - public lands KW - University of Colorado KW - Tertiary KW - upper Eocene KW - lacustrine environment KW - Teller County Colorado KW - Colorado KW - Internet KW - Oligocene KW - 08:General paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51700478?accountid=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+Publication+-+Nevada+Bureau+of+Mines+and+Geology&rft.atitle=Replenishment+of+salt+to+the+Bonneville+Salt+Flats%3B+results+of+the+5-year+experimental+Salt+Laydown+Project&rft.au=White%2C+William+W%2C+III&rft.aulast=White&rft.aufirst=William&rft.date=2004-01-01&rft.volume=&rft.issue=&rft.spage=243&rft.isbn=&rft.btitle=&rft.title=Special+Publication+-+Nevada+Bureau+of+Mines+and+Geology&rft.issn=02756285&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2004 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 - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - academic institutions; Cenozoic; college-level education; Colorado; computer networks; curricula; data bases; data processing; education; Eocene; Florissant Fossil Beds National Monument; Florissant Lake Beds; Internet; lacustrine environment; national monuments; Oligocene; Paleogene; paleolimnology; paleontology; public lands; Teller County Colorado; Tertiary; United States; University of Colorado; upper Eocene ER - TY - JOUR T1 - Indonesia's forest fire and coal fire cycles AN - 51699825; 2005-049360 AB - Indonesia's fire and haze problem is becoming an annual occurrence. By mid-June 2004, over 300 hot spots had been detected in Sumatra and haze covered the Indonesian Province of Riau and parts of the Malaysian Peninsula. Airports closed and flights were delayed beginning the cycle of economic impacts and complaints from Indonesia's citizens and neighbors. Beginning in the 1970's, increasing demand from Indonesia's pulp and paper industry, plywood industry and round log export markets put tremendous pressure on Indonesia's forests. Rainforests in their natural state rarely burn because they are difficult to ignite due to the forest's high humidity even in drought years. However, logging these closed canopied humid forests allows them to dry out making them susceptible to fire. In 1982-83, 1987, 1991, 1994 and 1997-98, forest fires ravaged Sumatran and East Kalimantan forests. These severe fire episodes resulted from prolonged drought periods accompanying the El Nino Southern Oscillation. Satellite data and ground observations showed that more than five million hectares burned in east Kalimantan during the 1997/98 extended dry season. Not only were the economic losses and ecological damage from these surface fires enormous, they ignited exposed coal seams along their outcrops. The Sumatran and east Kalimantan forest fire areas overlay 95% of Indonesia's estimated 38 billion tons of coal. In east Kalimantan, coal fires are still burning from each of the forest fire periods consuming valuable coal resources and destroying the land surface. Unlike forest and peat fires, coal fires persist for decades smoldering underground unaffected by even torrential monsoon rains. Estimates of active coal fires in east Kalimantan alone are between 760 and 3000. Locally, coal fires pose serious health and safety risks from toxic fumes and land surface collapses that destroy infrastructure. On a global basis, they contribute large quantities of greenhouse gases to the atmosphere without providing any of the human benefits from energy consumption. In addition to these direct effects, coal fires remain a long-term source of ignition for new forest fires perpetuating a destructive cycle. JF - Abstracts with Programs - Geological Society of America AU - Whitehouse, Alfred E AU - Mulyana, Asep A S AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 42 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - forests KW - cycles KW - Malay Peninsula KW - Far East KW - geologic hazards KW - Borneo KW - Indonesia KW - pollution KW - environmental effects KW - human ecology KW - drought KW - air pollution KW - fires KW - Kalimantan Indonesia KW - El Nino Southern Oscillation KW - sedimentary rocks KW - Sumatra KW - coal KW - risk assessment KW - Malay Archipelago KW - Asia KW - public health KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51699825?accountid=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=Indonesia%27s+forest+fire+and+coal+fire+cycles&rft.au=Kohler%2C+James+F%3BWhite%2C+William+W%2C+III&rft.aulast=Kohler&rft.aufirst=James&rft.date=2004-01-01&rft.volume=&rft.issue=&rft.spage=181&rft.isbn=&rft.btitle=&rft.title=Special+Publication+-+Nevada+Bureau+of+Mines+and+Geology&rft.issn=02756285&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2004 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 - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - air pollution; Asia; Borneo; coal; cycles; drought; El Nino Southern Oscillation; environmental effects; Far East; fires; forests; geologic hazards; human ecology; Indonesia; Kalimantan Indonesia; Malay Archipelago; Malay Peninsula; pollution; public health; risk assessment; sedimentary rocks; Sumatra ER - TY - JOUR T1 - Census study of fossil plants, insects and invertebrates in the lower shale unit of the Florissant Formation of Colorado AN - 51699733; 2005-049353 AB - A section of the commercial Florissant Fossil Quarry was donated to enable Florissant Fossil Beds National Monument, the Denver Museum of Nature & Science, and a local school district to conduct a detailed excavation that provides a taxonomic census of the lower shale unit of the Florissant Formation. The upper and middle shale units of the Florissant Formation are now part of the Monument. Because the lower shale unit is not exposed within the Monument, this study is providing new information on plant, insect, and fresh water gastropod and mollusk diversity. A 1.5 m thick stratigraphic section was collected using 10 cm thick aggregate sampling intervals over a surface area of approximately 1 m (super 2) . The 10 cm sections were chosen to record high-resolution changes in diversity, abundance, and composition of fossil material between sampling intervals. This effort has been compared with floral census data published in MacGinitie's 1953 Florissant monograph. Our taxonomic abundance data differ from that of MacGinitie's four census quarries, indicating a much lower population of Fagopsis and a much higher population of Chamaecyparis. Fluctuations in composition of plants and insects as well as deeper water invertebrates have been observed in the 10 cm sections, possibly signifying variation in the position of the lake margin and water depth. This change in composition is easily observed above and below a thick tuffaceous mudstone layer that lacks fossils. Below this marker, plant fossils, including the relatively abundant "Typha," are concentrated in distinct layers, possibly indicating a near-shore depositional environment. Above this marker layer, we noted that fresh water gastropods and mollusks dominate, which is similar to MacGinitie's locality 4. We also noted that the floral diversity and sedimentary facies below this mudstone marker layer are similar to MacGinitie's localities 1-3. JF - Abstracts with Programs - Geological Society of America AU - Wagner, Steve B AU - Meyer, Herbert W AU - Johnson, Kirk AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 40 EP - 41 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - paleoecology KW - Cenozoic KW - sedimentary rocks KW - national monuments KW - Florissant Lake Beds KW - paleolimnology KW - Florissant Fossil Beds National Monument KW - Invertebrata KW - Mollusca KW - Insecta KW - Plantae KW - biodiversity KW - mudstone KW - Eocene KW - shale KW - Gastropoda KW - Paleogene KW - fresh-water environment KW - nearshore environment KW - public lands KW - Tertiary KW - populations KW - Arthropoda KW - upper Eocene KW - Mandibulata KW - lacustrine environment KW - Teller County Colorado KW - Colorado KW - clastic rocks KW - Oligocene KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51699733?accountid=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=Census+study+of+fossil+plants%2C+insects+and+invertebrates+in+the+lower+shale+unit+of+the+Florissant+Formation+of+Colorado&rft.au=Wagner%2C+Steve+B%3BMeyer%2C+Herbert+W%3BJohnson%2C+Kirk%3BAnonymous&rft.aulast=Wagner&rft.aufirst=Steve&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=40&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, 2004 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 - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Arthropoda; biodiversity; Cenozoic; clastic rocks; Colorado; Eocene; Florissant Fossil Beds National Monument; Florissant Lake Beds; fresh-water environment; Gastropoda; Insecta; Invertebrata; lacustrine environment; Mandibulata; Mollusca; mudstone; national monuments; nearshore environment; Oligocene; paleoecology; Paleogene; paleolimnology; Plantae; populations; public lands; sedimentary rocks; shale; Teller County Colorado; Tertiary; United States; upper Eocene ER - TY - JOUR T1 - Investigation of the geochemical evolution of coalbed natural gas water as it infiltrates through the unsaturated zone of the Tongue River Member of the Fort Union Formation, Powder River basin, MT AN - 51697511; 2005-037424 AB - Coalbed Natural Gas (CBNG) represents a significant new domestic energy source; however there are environmental challenges associated with its development. CBNG in the Powder River basin is produced by reducing the hydrostatic pressure within the coal seam by removing coalbed water, causing the CH4 to desorb from the coal surface and flow to the pumping well. Environmentally sound management of produced water is a major environmental issue associated with the development of CBNG. One proposed method of CBNG water management is to place the water in unlined basins, allowing the water to infiltrate and recharge underlying aquifers. One of the potential problems associated with this method of water management is that the water will partake in geochemical reactions as it infiltrates which may degrade the underlying groundwater. The basic geochemical evolution of the water as it infiltrates can be anticipated based on known processes which have been extensively investigated in relation to coal mining over the past 30 years. This study uses this geochemical framework, water chemistry and unsaturated soil and shallow bedrock mineralogy, to develop models of the chemical evolution of the CBNG water as it travels along its flow path. Data from one well in an active CBNG pond shows a total dissolved solids (TDS) increase from 1,433 mg/L to 12,000 mg/L, due mainly to increases in sulfate concentration and near equal increases in cations. Saturated paste extract data indicate the reactions are occurring in the uppermost 10 feet of material beneath the pond. Possible sources of sulfate include gypsum dissolution and pyrite oxidation. At another site TDS has decreased in one well from 2,500 mg/L to 925 mg/L, due primarily to loss of sulfate and near equal losses of all cations. In the first case, infiltration is occurring through a previously unsaturated zone where soluble salts may have built up over time. At the second site the pond is located in an ephemeral channel with alluvial ground water that may have flushed salts, allowing the CBNG water to dilute the alluvial water. Data and models generated during this research will allow for the development of scientifically sound siting and monitoring criteria for infiltration basins. These criteria will aid in the responsible use of infiltration basins, and avoid the siting of infiltration basins in unsuitable locations. JF - Abstracts with Programs - Geological Society of America AU - Bobst, Andrew L AU - Wheaton, John R AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 166 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - monitoring KW - natural gas KW - water management KW - unsaturated zone KW - solutes KW - pollution KW - petroleum KW - Paleogene KW - hydrochemistry KW - Tongue River Member KW - Montana KW - ground water KW - Cenozoic KW - Tertiary KW - filtration KW - Paleocene KW - coalbed methane KW - Fort Union Formation KW - water pollution KW - geochemistry KW - Powder River basin KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51697511?accountid=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=Investigation+of+the+geochemical+evolution+of+coalbed+natural+gas+water+as+it+infiltrates+through+the+unsaturated+zone+of+the+Tongue+River+Member+of+the+Fort+Union+Formation%2C+Powder+River+basin%2C+MT&rft.au=Bobst%2C+Andrew+L%3BWheaton%2C+John+R%3BAnonymous&rft.aulast=Bobst&rft.aufirst=Andrew&rft.date=2004-11-01&rft.volume=72&rft.issue=2&rft.spage=15&rft.isbn=&rft.btitle=&rft.title=Shore+%26+Beach&rft.issn=00374237&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2004 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 - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Cenozoic; coalbed methane; filtration; Fort Union Formation; geochemistry; ground water; hydrochemistry; monitoring; Montana; natural gas; Paleocene; Paleogene; petroleum; pollution; Powder River basin; solutes; Tertiary; Tongue River Member; United States; unsaturated zone; water management; water pollution ER - TY - JOUR T1 - The National Park Service geology-GIS geodatabase data model AN - 51686187; 2005-059953 AB - Bedrock and surficial geologic maps and supporting information provide the foundation for studies of ecosystems, earth history, groundwater, geomorphology, soils, and environmental hazards such as fire history, landslide, and rockfall potential. Geologic maps describe the underlying physical conditions of many natural systems and are an integral component of the physical science inventories stipulated by the National Park Service (NPS) in its Natural Resources Inventory and Monitoring (I&M) Guideline. The NPS has identified GIS and digital cartographic products as fundamental resource management tools. There are few geologists employed at most parks, thus these tools are particularly important to the National Park Service to aid resource managers in effectively using geologic data for park management decisions. The NPS Geologic Resources Division (GRD) is currently developing a Geologic Resources Evaluation (GRE) that includes: 1) a geologic bibliography, 2) the creation of summary reports of each park's geology and geologic issues, 3) evaluation of existing geologic maps, and 4) the development of a geology-GIS Data Model for digital geologic-GIS data. Migration from a coverage/theme-based Geology-GIS Data Model to a Geodatabase Geology-GIS Data Model is currently underway. Initial schema for datasets, feature classes, tables and domains, and relationship classes is in draft format. The design of Unified Modeling Language (UML) blueprint plans using Microsoft Visio will soon follow. The next step will be generating XML Metadata Interchange (XMI) schema from the UML plans, then implementing the XMI schema to define Geodatabase schema using Computer-Aided Software Engineering (CASE) tools. After implementation and debugging, the migration of existing Geology-GIS data will commence. JF - Abstracts with Programs - Geological Society of America AU - O'Meara, Stephanie AU - Thornberry-Ehrlich, Trista L AU - Poole, Anne R AU - Mack, Gregory S AU - Stanton, Heather I AU - Chappell, James R AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 230 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - soils KW - bedrock KW - rockfalls KW - monitoring KW - geologic hazards KW - U. S. National Park Service KW - government agencies KW - data processing KW - ecosystems KW - ground water KW - evaluation KW - geology KW - fires KW - landslides KW - geographic information systems KW - mass movements KW - data bases KW - information systems KW - geomorphology KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51686187?accountid=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=The+National+Park+Service+geology-GIS+geodatabase+data+model&rft.au=O%27Meara%2C+Stephanie%3BThornberry-Ehrlich%2C+Trista+L%3BPoole%2C+Anne+R%3BMack%2C+Gregory+S%3BStanton%2C+Heather+I%3BChappell%2C+James+R%3BAnonymous&rft.aulast=O%27Meara&rft.aufirst=Stephanie&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=230&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, 2004 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 - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - bedrock; data bases; data processing; ecosystems; evaluation; fires; geographic information systems; geologic hazards; geology; geomorphology; government agencies; ground water; information systems; landslides; mass movements; monitoring; rockfalls; soils; U. S. National Park Service ER - TY - JOUR T1 - Extended monitoring of coal mine fires with thermochrons AN - 51686142; 2005-059930 AB - Temperature monitoring is critical for successful exploration, design and assessment of coal mine and coal refuse fire abatement projects. Boreholes are commonly used to explore subsurface fires by sampling gases and measuring temperatures from the burning horizon. Relative changes in temperatures over time in the boring are direct indicators of fire activity. Routine monitoring of borings is time consuming and often entails expensive sophisticated equipment. Accurate temperature trends, whether cooling or heating, require many consistent readings over long periods. Infrequent monitoring may miss changes caused by venting, weather and other environmental factors. The use of a novel thermochron device termed an "I-button" can inexpensively and efficiently record temperatures in moderately warm holes over long periods. The temperature logger I-button is a microprocessor about the size of a large watch battery, referred as a thermochron. The I-button can be deployed to measure temperatures up to 125 degrees C remotely down a boring, in a fire vent or shallow excavation. The device can be retrieved and downloaded in the field using a laptop computer. The device has 8kb of memory, which allows storage of 328 days of data with a temperature recorded every 4 hours. The sample rate can be varied from 1 second to 273 hours. The data produces a text file that can be easily read and graphed in a spreadsheet program or reviewed immediately in the vendor-supplied software. We have deployed thermochrons at four sites using slightly different techniques. These sites vary from small fires, monitoring a few holes to a large fire where over fifty holes are being monitored for a long term. At two small fire sites the devices were used to monitor the success of the abatement. The monitoring showed a gradual reduction in temperatures. On a large mine fire site numerous thermochrons were installed on the cold side of a fire barrier to measure the integrity of the cutoff. Another smaller mine fire site has 10 thermochrons installed to measure fire activity prior to abatement. Some of the thermochron locations undisturbed by the excavation activities will be retained at this site to evaluate abatement success over a period of a year or more. JF - Abstracts with Programs - Geological Society of America AU - Ehler, William C AU - Balogh, Richard AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 226 EP - 227 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - mines KW - monitoring KW - geologic hazards KW - spreadsheets KW - coal mines KW - thermochrons KW - temperature KW - measurement KW - gases KW - evaluation KW - fires KW - sampling KW - cooling KW - instruments KW - design KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51686142?accountid=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=Extended+monitoring+of+coal+mine+fires+with+thermochrons&rft.au=Ehler%2C+William+C%3BBalogh%2C+Richard%3BAnonymous&rft.aulast=Ehler&rft.aufirst=William&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=226&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, 2004 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 - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - coal mines; cooling; design; evaluation; fires; gases; geologic hazards; instruments; measurement; mines; monitoring; sampling; spreadsheets; temperature; thermochrons ER - TY - JOUR T1 - Understanding cave resources; an interagency approach AN - 51679971; 2005-059813 AB - Beginning in the spring of 2002, the Shasta-Trinity National Forest and the Lava Beds National Monument entered in an interagency cooperative agreement for cave resource inventory for the lava tubes of northern California. The agreement included work to be done on the Klamath and Shasta-Trinity National Forests. The Forest Service sought the expertise of cave resource managers from Lava Beds to help document and gain a better understanding of the cave resources that they were tasked with managing. A team of resource specialists and volunteers from Lava Beds began detailed resource inventories of a number of identified significant caves on the two forests, beginning with lava tubes, and in 2004 branching out to include solution caves with assistance from resource specialists from Carlsbad Caverns NP. The inventories are based loosely around existing resource inventories at both Lava Beds and Carlsbad Caverns, The Forest Service receives detailed information about the type, quality, and extent of physical, biological, and cultural resources located in the selected caves, as well as management recommendations. JF - Abstracts with Programs - Geological Society of America AU - Reece, Matthew AU - Fuhrmann, Kelly AU - VanSustren, Peter AU - Larson, David AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 190 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - Carlsbad Caverns KW - Eddy County New Mexico KW - caves KW - New Mexico KW - California KW - Shasta-Trinity National Forest KW - natural resources KW - inventory KW - Lava Beds National Monument KW - solution features KW - Northern California KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51679971?accountid=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=Understanding+cave+resources%3B+an+interagency+approach&rft.au=Reece%2C+Matthew%3BFuhrmann%2C+Kelly%3BVanSustren%2C+Peter%3BLarson%2C+David%3BAnonymous&rft.aulast=Reece&rft.aufirst=Matthew&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=190&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, 2004 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 - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - California; Carlsbad Caverns; caves; Eddy County New Mexico; inventory; Lava Beds National Monument; natural resources; New Mexico; Northern California; Shasta-Trinity National Forest; solution features; United States ER - TY - JOUR T1 - Managing with state-of-the-art science; inventory and monitoring programs partner scientists with cave and karst managers AN - 51679936; 2005-059811 AB - Two needs stand out as especially critical to effective cave and karst management: Broadening the appreciation for state-of-the-art science among decision makers and increasing their access to a wide range of science-based information. An important step towards building a wise stewardship program is development of an inventory and monitoring (I&M) network to gather and analyze resource condition and trend data. Documented knowledge of the resource followed by conscientious monitoring will allow managers to know whether they are managing in such a way that tomorrow's generation will be able to experience the nation's unspoiled natural heritage. Inventory and monitoring programs rely on knowledge of previously identified and potential resources to investigate. Published papers, file reports, and other communications by scientists inside and outside of agencies provide important information on resources to be included within an I&M program. The inventory data can then help guide managers towards reasoned stewardship policies. Equally critical to a baseline understanding through inventory is follow-up monitoring with critical analysis of the data to evaluate the results of management decisions and changing conditions. Responsible stewardship needs critical, science-based assessment to identify best practices and ensure against inadvertent impacts. While it is easy to demonstrate that public land facilities require billions of dollars to maintain, the urgency of investment needs and immediately tangible outcomes for natural resources is more difficult to appreciate. Law enforcement, U.S. border safety issues, and maintenance of buildings and roads are competing and pressing priorities. However, today's public lands must be actively managed. The investment of scientists in pursuing project's supporting the maintenance of our nation's commitment to its heritage continues to grow. JF - Abstracts with Programs - Geological Society of America AU - Soukup, Mike AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 190 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - safety KW - monitoring KW - natural resources KW - caves KW - karst KW - decision-making KW - solution features KW - public lands KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51679936?accountid=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=Managing+with+state-of-the-art+science%3B+inventory+and+monitoring+programs+partner+scientists+with+cave+and+karst+managers&rft.au=Soukup%2C+Mike%3BAnonymous&rft.aulast=Soukup&rft.aufirst=Mike&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=190&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, 2004 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 - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - caves; decision-making; karst; monitoring; natural resources; public lands; safety; solution features ER - TY - JOUR T1 - Evolution of historically acidic mine drainage (AMD) to alkaline discharges; Irwin coal basin, Pennsylvania AN - 51667611; 2005-068061 AB - Flooded underground coal mine complexes produce acid and metal contaminated discharges that impact regional ground water flow systems as well as the water quality of receiving streams. Mine waters generally have high concentrations of acidity (pH 6 ppm, and sulfates > 250 ppm. However, numerous large flow (>2,000 L/min), historically acidic, deep mine discharges in Appalachian coal basins are now net alkaline, with circumneutral pH and high concentrations of dissolved iron. Understanding natural alkalinity production offers alternative approaches for neutralizing AMD and has implications for predictive models, mining regulations, mine discharge remediation, and resource recovery. To determine the subsurface processes involved in the generation of natural alkalinity, we are focusing on the relationship between water chemistry, overburden mineralogy and the hydrogeology of the Irwin Basin in southwestern Pennsylvania, a 240 sq. km bituminous coal basin comprising 27 mine complexes. Acidic sulfate-, Fe- and Al-contaminated discharges are found in the northern part of the basin; the south is dominated by alkaline discharges contaminated with Fe (20-80 ppm), sulfate, and Na (100-500 ppm). Based on equilibrium hydraulic relationships developed over the last 25 years, we divided the basin into seven sub-basins. Inverse modeling (PHREEQC) indicates that the spatial and temporal change in mine water chemistry involves processes other than dilution. Acidic discharges in the northeastern end of the basin are likely the product of surface water modified by pyrite oxidation and aluminosilicate mineral dissolution. Modeling results and Sr isotopic analysis of the southwestern discharges are consistent with the development of alkaline waters as a result of limestone dissolution enhanced by cation exchange reactions with overburden clays. The data suggest that these processes occur in deeper sub-basins (overburden thickness >60 m). A positive correlation exists between net alkalinity and groundwater residence time in the mine pools, calculated to be 1-5 years. Preliminary MODFLOW results indicate mine waters are discharging through the overburden to the Youghiogheny River, and confirm that two large discharges (Q >0.2 m (super 3) /s) are the dominant influence on the flow system. JF - Abstracts with Programs - Geological Society of America AU - Capo, Rosemary C AU - Bryant, Elizabeth M AU - Stafford, Sherry L AU - Weaver, Theodore J AU - Winters, William R AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 242 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - water quality KW - Youghiogheny River KW - ground water KW - mineral composition KW - Appalachian Basin KW - movement KW - thickness KW - alkalinity KW - discharge KW - Irwin Basin KW - geochemistry KW - processes KW - PHREEQC KW - North America KW - overburden KW - cation exchange capacity KW - acid mine drainage KW - oxidation KW - surface water KW - pollution KW - MODFLOW KW - hydrochemistry KW - alkalic composition KW - southwestern Pennsylvania KW - pyrite KW - Pennsylvania KW - sulfides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51667611?accountid=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=Evolution+of+historically+acidic+mine+drainage+%28AMD%29+to+alkaline+discharges%3B+Irwin+coal+basin%2C+Pennsylvania&rft.au=Capo%2C+Rosemary+C%3BBryant%2C+Elizabeth+M%3BStafford%2C+Sherry+L%3BWeaver%2C+Theodore+J%3BWinters%2C+William+R%3BAnonymous&rft.aulast=Capo&rft.aufirst=Rosemary&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=242&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, 2004 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 - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - acid mine drainage; alkalic composition; alkalinity; Appalachian Basin; cation exchange capacity; discharge; geochemistry; ground water; hydrochemistry; Irwin Basin; mineral composition; MODFLOW; movement; North America; overburden; oxidation; Pennsylvania; PHREEQC; pollution; processes; pyrite; southwestern Pennsylvania; sulfides; surface water; thickness; United States; water quality; Youghiogheny River ER - TY - JOUR T1 - Managing and interpreting coastal geomorphologic data; an Assateague Island National Seashore case study AN - 51663415; 2005-071753 AB - The northern end of Assateague Island National Seashore (ASIS) has migrated more than 400 meters toward mainland Maryland since Ocean City Inlet was stabilized by jetties in 1933. This landward migration dramatically illustrates the dynamic nature of coastal systems. Geomorphologic monitoring is crucial to understanding both the natural fluctuations of barrier islands and anthropogenic influences on coastal change. The two primary types of data included in geomorphologic monitoring efforts at ASIS are horizontal shoreline position, as measured using GPS, and topographic information, provided by LIDAR and traditionally surveyed cross island profiles. In order for monitoring data to be effective, they must be properly managed, utilized in appropriate analyses, and presented to resource stewards and the public in a meaningful way. This study helps ASIS to achieve these goals by instituting a strategic data management plan, illustrating appropriate analytical techniques, and providing temporal data visualizations for coastal geomorphologic data. Data management and standardization are essential to the effective utilization of spatial information. Developing a coastal geomorphologic data management protocol for ASIS has involved the creation of standard operating procedures for data collection, data processing protocols, archival procedures, and metadata templates. Analytical techniques described and illustrated include historic shoreline change analysis, morphologic change surface creation, derivation of profiles from LIDAR surfaces, and comparison of LIDAR and traditionally derived cross island profiles. Further the creation of three dimensional island models from LIDAR based digital elevation models is described. These products provide resource managers and the general public the tools to obtain an elevated understanding of the dynamic nature of this national seashore. By increasing awareness of park dynamics this study will aid management decisions regarding; endangered species protection efforts, evaluation of beach restoration projects, and sustainable infrastructure development. JF - Abstracts with Programs - Geological Society of America AU - Ransmeier, Melanie Viola AU - Luchsinger, Deborah AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 290 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - Assateague Island National Seashore KW - Ocean City Inlet KW - Global Positioning System KW - monitoring KW - laser methods KW - three-dimensional models KW - radar methods KW - digital terrain models KW - information management KW - data management KW - case studies KW - visualization KW - fluctuations KW - topography KW - lidar methods KW - Ocean City Maryland KW - Maryland KW - geomorphology KW - interpretation KW - Atlantic Coastal Plain KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51663415?accountid=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=Managing+and+interpreting+coastal+geomorphologic+data%3B+an+Assateague+Island+National+Seashore+case+study&rft.au=Ransmeier%2C+Melanie+Viola%3BLuchsinger%2C+Deborah%3BAnonymous&rft.aulast=Ransmeier&rft.aufirst=Melanie&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=290&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, 2004 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 - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Assateague Island National Seashore; Atlantic Coastal Plain; case studies; data management; digital terrain models; fluctuations; geomorphology; Global Positioning System; information management; interpretation; laser methods; lidar methods; Maryland; monitoring; Ocean City Inlet; Ocean City Maryland; radar methods; three-dimensional models; topography; United States; visualization ER - TY - JOUR T1 - Geologic partnerships; developing educational opportunities and meeting park needs AN - 51636772; 2006-012429 AB - The National Park Service is entrusted to manage some of the most spectacular geologic features and dynamic geologic processes in the world. As public land stewards, we have the responsibility to widely share our knowledge about park resources and enhance the ability to learn from, and to enjoy these resources. William Penn Mott, at the 1986 Conference on Science in the National Parks, stated, "It is not enough for us to gather knowledge. It is not even enough for us to apply that knowledge. It is essential that we share our knowledge with the people of the nation and the world." To be successful in this endeavor, National Parks need to work with people who have broad geologic knowledge and the ability to communicate with non-geologists. The Geology of the National Parks courses being taught in universities across the country can serve as a springboard for both students and teachers to become involved in park geologic programs. In this presentation, I will discuss the creation of educational partnerships between parks and universities, including Research Learning Centers. Through these partnerships, we will share our knowledge and appreciation of park geology in such a way that we help the parks enhance their geologic programs, create employment and sabbatical opportunities, and develop park-based educational projects for students. Information will also be provided on the Geoscientists-in-the-Parks program, obtaining park permits, as well as tips for working with parks. JF - Abstracts with Programs - Geological Society of America AU - Higgins, Robert D AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 488 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - processes KW - geology KW - college-level education KW - U. S. National Park Service KW - government agencies KW - national parks KW - education KW - public lands KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51636772?accountid=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=Geologic+partnerships%3B+developing+educational+opportunities+and+meeting+park+needs&rft.au=Higgins%2C+Robert+D%3BAnonymous&rft.aulast=Higgins&rft.aufirst=Robert&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=488&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, 2004 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 - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - college-level education; education; geology; government agencies; national parks; processes; public lands; U. S. National Park Service; United States ER - TY - JOUR T1 - From dinosaur tracks to dam faces; a new method for collecting three-dimensional data AN - 51628036; 2006-007071 AB - Close-range photogrammetry is an established method for capturing detailed information about a natural rock face or similar surface. Close-range techniques apply the same principals as do traditional aerial photogrammetry and allow for precise measurements to be made from photographs. For these measurements to occur, two major requirements must be met, complete coverage by overlapping photographs for stereoscopic viewing, and adequate x,y,z control for defined points within the overlapping area of the photographs. For traditional aerial photogrammetry projects the x,y,z control data is gathered through established surveying techniques or, more recently, by high accuracy Global Position System. Conventional ground control collection methods, when conducted with care, can obtain accuracies in the sub-centimeter ranges. These accuracies, although adequate for aerial photography at scales of 1:1500 or greater, may not support detailed close-range photogrammetric applications where highly detailed morphometric data is required. Over the past six years research conducted at paleontological and archeological sites in Colorado, Wyoming, and Utah has employed the use of close-range photogrammetry to document, in three dimensions, subjects such as dinosaur tracks, dinosaur bone beds, petroglyphs, and rock shelters. Stereoscopic images of these subjects were analyzed utilizing both softcopy and hardcopy stereoscopic instruments, which have analytical capabilities to a sub-millimeter level thus, rendering conventional ground control methods inadequate for properly controlling the close-range subject to the needed level. Recent advances in affordable digital cameras and computer software that quantifies the distortions of these cameras has elevated the camera from simply a device for capturing images to a virtual surveying instrument. The techniques developed to photographically document and analyze Jurassic dinosaur tracks are being refined to assist in the evaluation of concrete dam faces. JF - Abstracts with Programs - Geological Society of America AU - Matthews, Neffra A AU - Noble, Tommy A AU - Breithaupt, Brent H AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 384 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - Global Positioning System KW - bone beds KW - data acquisition KW - data processing KW - sedimentary rocks KW - dams KW - rock shelters KW - dinosaurs KW - Chordata KW - three-dimensional models KW - tracks KW - photogrammetry KW - measurement KW - Reptilia KW - computer programs KW - Wyoming KW - archaeological sites KW - aerial photography KW - Utah KW - Vertebrata KW - Colorado KW - accuracy KW - Tetrapoda KW - instruments KW - remote sensing KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51628036?accountid=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=From+dinosaur+tracks+to+dam+faces%3B+a+new+method+for+collecting+three-dimensional+data&rft.au=Matthews%2C+Neffra+A%3BNoble%2C+Tommy+A%3BBreithaupt%2C+Brent+H%3BAnonymous&rft.aulast=Matthews&rft.aufirst=Neffra&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=384&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, 2004 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 - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - accuracy; aerial photography; archaeological sites; bone beds; Chordata; Colorado; computer programs; dams; data acquisition; data processing; dinosaurs; Global Positioning System; instruments; measurement; photogrammetry; remote sensing; Reptilia; rock shelters; sedimentary rocks; Tetrapoda; three-dimensional models; tracks; United States; Utah; Vertebrata; Wyoming ER - TY - JOUR T1 - Sedimentology and stratigraphy of three archaeologically significant areas of the Colorado River corridor, Grand Canyon, Arizona AN - 51623247; 2006-022032 AB - This study presents initial results of a joint effort between geologists and archaeologists to evaluate the significance of various depositional processes and environments in the formation and preservation of archaeological sites along the Colorado River corridor in Grand Canyon National Park. Stratigraphic investigations of the Palisades, Lower Comanche, and Arroyo Grande areas of Grand Canyon yield detailed information regarding the sedimentary history at these locations. Reconstruction of past depositional settings is critical to a thorough understanding of the geomorphic and stratigraphic evolution of these three archaeologically significant areas. Examination of past sedimentary environments allows the relative significance of fluvial, aeolian, debris-fan, and slope-wash sedimentary sources to be identified at each site. In general the influence of fluvial sedimentary processes (number and thickness of flood deposits) is shown to decrease with distance from the river, as locally derived sediment becomes more significant. Flood sequences often occur as "couplets" that contain a coarsening-upward fluvial deposit overlain by inter-flood units that reflect reworking of fluvial sediment at the land surface by wind and local runoff. Archaeological features are built on and buried by sediment of various depositional environments, representing a complex interaction between geologic and cultural history. Such field analysis, which combines geological and archaeological information and techniques, can provide a basis for determining of the effects of Glen Canyon Dam on selected areas of the river corridor. This knowledge is essential to the development of preservation strategies for cultural resources in Grand Canyon National Park. JF - Abstracts with Programs - Geological Society of America AU - Draut, Amy E AU - Rubin, David M AU - Dierker, Jennifer L AU - Fairley, Helen C AU - Hunter, Ralph E AU - Leap, Lisa M AU - Nials, Fred L AU - Topping, David J AU - Yeatts, Michael AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 514 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - processes KW - archaeology KW - Grand Canyon National Park KW - national parks KW - public lands KW - Grand Canyon KW - Colorado River KW - archaeological sites KW - deposition KW - Arizona KW - sediments KW - reconstruction KW - paleofloods KW - depositional environment KW - fluvial environment KW - preservation KW - 24:Quaternary geology KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51623247?accountid=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=Sedimentology+and+stratigraphy+of+three+archaeologically+significant+areas+of+the+Colorado+River+corridor%2C+Grand+Canyon%2C+Arizona&rft.au=Draut%2C+Amy+E%3BRubin%2C+David+M%3BDierker%2C+Jennifer+L%3BFairley%2C+Helen+C%3BHunter%2C+Ralph+E%3BLeap%2C+Lisa+M%3BNials%2C+Fred+L%3BTopping%2C+David+J%3BYeatts%2C+Michael%3BAnonymous&rft.aulast=Draut&rft.aufirst=Amy&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=514&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, 2004 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 - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - archaeological sites; archaeology; Arizona; Colorado River; deposition; depositional environment; fluvial environment; Grand Canyon; Grand Canyon National Park; national parks; paleofloods; preservation; processes; public lands; reconstruction; sediments; United States ER - TY - JOUR T1 - Ground-water monitoring in the Powder River basin, southeastern Montana AN - 51615730; 2006-023817 AB - The Powder River basin in southeastern Montana is a semi-arid region with an agricultural-based economy that is dependent on the availability of ground water. Coalbed methane (CBM) production is beginning in the area and requires removal and management of large quantities of water from the coal-bed aquifers. Because coal beds in the Fort Union Formation have higher hydraulic conductivity values (average of 1.0 ft2/day), and are more continuous, than the sandstone units (average of 0.06 ft2/day), they are the primary aquifers in this region. The need for a scientific foundation for resource management decisions requires a regional ground-water monitoring program. The Montana CBM ground-water monitoring program is based on scientific concepts developed over more than 30 years of coal-mine hydrogeology research. The program includes inventories of ground-water resources and regular monitoring at dedicated wells and selected springs. The program is now providing baseline potentiometric and water-quality data, and will continue to be active through the duration of CBM production and post-production ground-water recovery. In southeastern Montana 158 wells and 29 springs are currently included in the program, and they monitor coal beds, adjacent sandstone units, or alluvium. After 4 years of CBM production, ground-water levels within the producing area have been lowered by as much as 150 feet and by about 20 feet, 1 to 2 miles outside the producing area. CBM production water is dominated by sodium and bicarbonate ions, with sodium adsorption ratios greater than 30 and total dissolved-solids concentrations typically between 1,000 and 2,000 mg/L. Coordinating the needs of several agencies through a single agency for data collection and reporting improves the economic efficiency and reliability of the program. All data collected as part of this program are made immediately available to the public on the Internet at http://mbmggwic.mtech.edu/. Data and reports are used by industry, landowners, regulators and researchers. Funding for this program is provided by the U.S. Bureau of Land Management, U.S. Forest Service, U.S. Environmental Protection Agency, local Conservation Districts and the State of Montana. JF - Abstracts with Programs - Geological Society of America AU - Wheaton, John R AU - Bobst, Andrew L AU - Donato, Teresa A AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 187 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - lower Paleocene KW - terrestrial environment KW - Cretaceous KW - semi-arid environment KW - water management KW - sandstone KW - Upper Cretaceous KW - southeastern Montana KW - ground water KW - Cenozoic KW - sedimentary rocks KW - levels KW - coal KW - Paleocene KW - sediments KW - springs KW - Fort Union Formation KW - Powder River basin KW - monitoring KW - clastic sediments KW - alkali metals KW - agriculture KW - potentiometric surface KW - decision-making KW - Paleogene KW - adsorption KW - sodium KW - bicarbonate ion KW - Mesozoic KW - Montana KW - aquifers KW - Tertiary KW - metals KW - K-T boundary KW - alluvium KW - stratigraphic boundary KW - hydraulic conductivity KW - water wells KW - clastic rocks KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51615730?accountid=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=Ground-water+monitoring+in+the+Powder+River+basin%2C+southeastern+Montana&rft.au=Wheaton%2C+John+R%3BBobst%2C+Andrew+L%3BDonato%2C+Teresa+A%3BAnonymous&rft.aulast=Wheaton&rft.aufirst=John&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=187&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, 2004 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 - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - adsorption; agriculture; alkali metals; alluvium; aquifers; bicarbonate ion; Cenozoic; clastic rocks; clastic sediments; coal; Cretaceous; decision-making; Fort Union Formation; ground water; hydraulic conductivity; K-T boundary; levels; lower Paleocene; Mesozoic; metals; monitoring; Montana; Paleocene; Paleogene; potentiometric surface; Powder River basin; sandstone; sedimentary rocks; sediments; semi-arid environment; sodium; southeastern Montana; springs; stratigraphic boundary; terrestrial environment; Tertiary; United States; Upper Cretaceous; water management; water wells ER - TY - JOUR T1 - Fact sheets; aiding interpretation of geologic features in national parks AN - 51614584; 2006-027273 AB - An experiment to make the latest scientific information accessible to the public was conducted by the U.S. Geological Survey (USGS) and National Park Service (NPS) at Lassen Volcanic National Park (LVNP). Because NPS staff often lack expertise in earth science, they typically rely on information from the scientific or popular literature. Unfortunately much of this information is overly technical, biased, incorrect, or out of date. One solution to this problem is to combine USGS science with NPS interpretation and jointly create "Fact Sheets"--concise 2- or 4-page well-illustrated interpretations and explanations of specific park features. To date, USGS and NPS personnel have produced four Fact Sheets on geologic topics relevant to LVNP. Park staff chose the topics, and USGS geologists produced drafts that were then jointly reviewed and edited. Careful review and editing are especially important with Fact Sheets because they must present a clear, unambiguous, and reader friendly-message to the visitor. The Fact Sheets, which are published under a joint USGS-NPS banner, have proven to be an effective and popular way of disseminating quality up-to-date science to the public through NPS interpretation. JF - Abstracts with Programs - Geological Society of America AU - Clynne, Michael A AU - Stauffer, Peter H AU - Hendley, James W, II AU - Haner, Karen AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 417 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - California KW - publications KW - U. S. National Park Service KW - Lassen Volcanic National Park KW - government agencies KW - national parks KW - interpretation KW - public lands KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51614584?accountid=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=Fact+sheets%3B+aiding+interpretation+of+geologic+features+in+national+parks&rft.au=Clynne%2C+Michael+A%3BStauffer%2C+Peter+H%3BHendley%2C+James+W%2C+II%3BHaner%2C+Karen%3BAnonymous&rft.aulast=Clynne&rft.aufirst=Michael&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=417&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, 2004 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 - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - California; government agencies; interpretation; Lassen Volcanic National Park; national parks; public lands; publications; U. S. National Park Service; United States ER - TY - JOUR T1 - "The sky's the limit"; growing number of opportunities with the National Park Service AN - 51613947; 2006-023902 AB - Many geologists in the National Park Service believe "the sky is the limit" when exploring opportunities for geologist to help implement its geologic programs. Perhaps the limit is more: as boundless as your imagination. The NPS wants to reach out to the geologic community, present some challenges, and explore some opportunities. Could this be something for you? We need your knowledge, enthusiasm, and desire to enrich the understanding of the geologic treasures in our national parks. How can you meet your needs in working with the NPS? Work with the NPS is viewed differently. Some see it as an opportunity, others as a challenge, still others as a privilege. It may be all of these. The task of addressing all the geoscience needs of 388 NPS units is enormous, but this is leading us to many partnerships and accomplishments. While there are a host of projects to choose from, there is even a greater necessity to help parks identify their basic geologic needs. This presentation will provide a sampling of current and future needs in the following categories: inventories, monitoring, research, education, interpretation, geo-ecology, planning, mapping, and communication. Most of the work is at the park level, but some can be done in a non-park setting. As stewards of some of the finest natural treasures to be found anywhere, we invite you to join us and become a steward yourself. JF - Abstracts with Programs - Geological Society of America AU - Higgins, Robert D AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 528 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - monitoring KW - U. S. National Park Service KW - planning KW - future KW - geologists KW - government agencies KW - mapping KW - ecology KW - interpretation KW - education KW - research KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51613947?accountid=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=%22The+sky%27s+the+limit%22%3B+growing+number+of+opportunities+with+the+National+Park+Service&rft.au=Higgins%2C+Robert+D%3BAnonymous&rft.aulast=Higgins&rft.aufirst=Robert&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=528&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, 2004 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 - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - ecology; education; future; geologists; government agencies; interpretation; mapping; monitoring; planning; research; U. S. National Park Service ER - TY - JOUR T1 - Making geology relevant; tips for interpreting geology for the masses AN - 51613257; 2006-027268 AB - Geology may sometimes seem like a challenging topic for interpretation. Some park audiences may appear to not be very interested in geology and may seem more interested in wildlife or human history. Nonetheless, geology is a primary resource in many parks and natural areas, and as such, should be a topic of interpretation to help the public understand the significance of park areas. A variety of interpretive skills and methods can help visitors better relate to and appreciate geologic resources. The easiest way to make geology relevant in most natural parks is to simply point out the inherent connection between bedrock geology and scenery. Park landscapes contain many interpretive stories, including geo-ecology and geo-history in addition to purely geologic ones. Interpretation of geology processes that work on human timescales; using analogies, similes, and metaphors for other geologic concepts; and providing geologic context can make difficult geologic concepts more accessible for audiences. Examining rocks or other geologic samples or features from a variety of perspectives is also a useful method for interpreting geology. Rocks can be examined via different senses, and at different scales, and can be viewed as landforms, records of geologic history, as habitat, and/or as material resources for human use. Interpreting geologic processes helps reveal the dynamic aspects of the earth sciences and can help tell the "story behind the scenery" of parks. Incorporating beauty, discovery and curiosity, change, and other more "emotional" aspects of geology can also make the topic relevant to larger audiences. When preparing geologic interpretive media, it is most important to focus on the genius loci of the park and its geology. Effective geology interpretation also may include separating distinct parts of the park's geologic stories, and may not include all aspects of an area's geology in a single program or exhibit. Finally, "thinking like a visitor" (a non-expert) can help interpreters find novel ways of presenting park geology and can ensure that geology presentations are as relevant as possible to the public. JF - Abstracts with Programs - Geological Society of America AU - Mathis, Allyson AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 416 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - processes KW - geology KW - natural resources KW - public awareness KW - popular geology KW - national parks KW - landforms KW - interpretation KW - public lands KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51613257?accountid=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=Making+geology+relevant%3B+tips+for+interpreting+geology+for+the+masses&rft.au=Mathis%2C+Allyson%3BAnonymous&rft.aulast=Mathis&rft.aufirst=Allyson&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=416&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, 2004 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 - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - geology; interpretation; landforms; national parks; natural resources; popular geology; processes; public awareness; public lands; United States ER - TY - JOUR T1 - Cave and karst management program AN - 51612894; 2006-025725 AB - Considerable cave exploration, restoration, research and other speleological activities are conducted within parks. Although the NPS occasionally can accomplish small projects with its own employees, most of the work is accomplished by individuals and groups interested in increasing scientific knowledge of cave and karst systems. Such groups and individuals contribute the majority of cave and karst research and projects. Currently the National Park Service has national level agreements with the Cave Research Foundation, the National Speleological Society, and Bat Conservation International. Speleological projects and research are also coordinated through individuals associated with these groups as well as the Geological Society of America, the American Considerable cave exploration, restoration, research and other speleological activities are conducted within National Park Service sites. Although the NPS can accomplish small projects with its own employees, most of the work is accomplished by individuals and groups interested in increasing scientific knowledge of cave and karst systems. Currently, the NPS has national agreements with the Cave Research Foundation, the National Speleological Society, and Bat Conservation International. Speleological projects and research are also coordinated through individuals associated with these groups as well as the Geological Society of America, the American Geological Institute, the USGS and the Karst Waters Institute. Without such partnerships, only a small fraction of projects and research conducted in caves and karst could be accomplished. The various units administered by the NPS are a shared dream for all Americans, and by extrapolation, for all peoples of the world for all time. Without the continued involvement of volunteer groups we would not be able to implement a cave and karst program that will provide for the protection of natural processes in cave ecosystems; understand karst landscapes; conduct scientific studies about cave and karst resources; increase the Service's scientific knowledge and broaden the understanding of its cave resources; and provide accurate educational opportunities for a broad spectrum of park visitors to safely visit, study, and enjoy caves; and continue to ensure the sustainable use conservation, interpretation, and protection of cave and karst resources. JF - Abstracts with Programs - Geological Society of America AU - Kerbo, Ronal AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 552 EP - 553 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - protection KW - National Speleological Society KW - GSA KW - U. S. National Park Service KW - caves KW - government agencies KW - national parks KW - karst KW - research KW - public lands KW - Bat Conservation International KW - land management KW - associations KW - interpretation KW - Cave Research Foundation KW - solution features KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51612894?accountid=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=Cave+and+karst+management+program&rft.au=Kerbo%2C+Ronal%3BAnonymous&rft.aulast=Kerbo&rft.aufirst=Ronal&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=552&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, 2004 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 - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - associations; Bat Conservation International; Cave Research Foundation; caves; government agencies; GSA; interpretation; karst; land management; national parks; National Speleological Society; protection; public lands; research; solution features; U. S. National Park Service; United States ER - TY - JOUR T1 - Hints to help you obtain your permit for research in the National Park Service AN - 51612863; 2006-025720 AB - Many people think of National Parks when they list appealing places to base their summer field studies and graduate research. Even if you have written the grant for funding, hired that field assistant, or bought your sampling equipment, you need to take a critical step prior to entering the park. A Research Permit is required to secure the key to assure you that park resource managers and rangers will welcome you to the backcountry and park natural areas. The Research and Reporting System (http://science.nature.nps.gov/research) is a new online way to apply for a research permit, review permit conditions, and see research needs of more than 380 National Park units. This talk will provide guidelines and several helpful hints for using the Research Permit and Reporting System. Critical information for park review and decisionmaking will be emphasized. Examples from coastal research will be used to highlight ongoing research. JF - Abstracts with Programs - Geological Society of America AU - Beavers, Rebecca AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 552 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - graduate-level education KW - U. S. National Park Service KW - government agencies KW - national parks KW - permits KW - education KW - research KW - public lands KW - field studies KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51612863?accountid=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=Hints+to+help+you+obtain+your+permit+for+research+in+the+National+Park+Service&rft.au=Beavers%2C+Rebecca%3BAnonymous&rft.aulast=Beavers&rft.aufirst=Rebecca&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=552&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, 2004 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 - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - education; field studies; government agencies; graduate-level education; national parks; permits; public lands; research; U. S. National Park Service; United States ER - TY - JOUR T1 - Introduction to the National Park Service and its efforts to partner with others AN - 51612360; 2006-025718 AB - The Geologic Resources Division of the National Park Service is relatively new, but it is making great strides in partnering with the geologic community to accomplish many common goals. The NPS manages 388 units, and is tasked with protecting natural geologic processes and geologic features. Many parks are considered to hold national and international geologic icons. Some citizens may refer to our dune fields, lava flows, fossils, geysers, canyons, arches, and watersheds as our geologic heritage. Many of the resources are unique and have an inherent value, but they are also a part of each park's ecosystem. We are at the very beginning of understanding the role that geology plays in resource dynamics. Such an understanding is key to our mission, as are protecting park resources and getting information to the public. In helping the NPS meet its mission, the Division facilitates geologic research, inventories, and monitoring; addresses geohazard concerns; helps minimize impacts from minerals development; provides geoscience guidance to parks; addresses policy and regulation concerns, and provides assistance in public outreach. It cannot do all this alone. Parks draw millions of visitors, and an equally impressive number of interested researchers, organizations, and volunteers. While parks are to be enjoyed and protected, they must also be studied. The Service cannot and should not try to understand and manage its resources in a vacuum. We need the geologic community to help identify park needs, address these needs, and help the managers, staff, and visitors understand geology's relative importance. Since its establishment in 1996, the Geologic Resources Division has been working with other agencies, organizations, companies, universities, and individuals to reach common goals in understanding our geologic features and processes, applying this information to the management of parks, and helping the public understand why geosciences are important. We hope to expand our work with the geoscience community, facilitate connections with parks, and meet the growing number goals we have in common. JF - Abstracts with Programs - Geological Society of America AU - Shaver, Dave AU - Geniac, Judy AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 552 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - protection KW - processes KW - geologic hazards KW - U. S. National Park Service KW - land management KW - government agencies KW - national parks KW - ecosystems KW - public lands KW - Geologic Resources Division KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51612360?accountid=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=Introduction+to+the+National+Park+Service+and+its+efforts+to+partner+with+others&rft.au=Shaver%2C+Dave%3BGeniac%2C+Judy%3BAnonymous&rft.aulast=Shaver&rft.aufirst=Dave&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=552&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, 2004 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 - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - ecosystems; geologic hazards; Geologic Resources Division; government agencies; land management; national parks; processes; protection; public lands; U. S. National Park Service; United States ER - TY - JOUR T1 - American Geological Institute cooperative efforts with the national parks AN - 51609458; 2006-025724 AB - Providing Geosciences outreach to the public is more important today than ever before. Every person should have the opportunity to better appreciate the majesty of our planet's geology. This can best be done if the public has a basic understanding of the processes that created this beauty. As part of a public outreach effort, the American Geological Institute is giving a high priority to using the national parks, icons of our geologic heritage, as public classrooms. The National Parks Service, which has 23,000 employees, has only 80 geologists (only 40 actually working in the parks) and yet there are 166 parks with significant geologic phenomena. There are a great many parks which were set aside specifically because of the need to preserve their geologic beauty. To better educate the public, using our National Park system as a vehicle, we are initiating or are cooperating with efforts to: encourage colleges and universities to teach courses on the geology of national parks and to create a system to share pertinent information with them; review textbooks for "Geology of the National Parks;" create and nurture a program that encourages local geological societies to "Adopt a Park;" develop a program to coordinate a set of fact-based, park-specific geology booklets; and work with Dr. Paul Weimer (University of Colorado) to create animated interactive videos that tell the geologic story of some of the major national parks. The "Adopt a Park" program has been launched. It will begin to mirror the Rocky Mountain Association of Geologists' work with Red Rocks' Visitor Center of Colorado: an example of effectively getting geoscience information to visitors. Thirty national parks have been identified which are close to strong local geological societies. These geological societies have been contacted and the response has been very positive. The "Adopt a Park" program is in its infancy but will expand to include volunteers in the parks, creation of interactive CD-Roms oriented to popularize geology in the parks, and an interpretive handbook to help park staff get geoscience information to the public and educational groups. JF - Abstracts with Programs - Geological Society of America AU - Thomasson, M Ray AU - Geniac, Judy AU - Wood, Jim AU - Higgins, Robert AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 552 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - processes KW - geology KW - U. S. National Park Service KW - public awareness KW - government agencies KW - associations KW - national parks KW - AGI KW - education KW - public lands KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51609458?accountid=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=Program+and+Abstracts+-+Arctic+Science+Conference&rft.atitle=A+GIS+and+remote+sensing+based+approach+to+monitoring+the+Bering+Glacier+system&rft.au=Savage%2C+Sean%3BJosberger%2C+Edward+G%3BSchuchman%2C+Robert%3BPayne%2C+John%3BMeadows%2C+Guy%3BDorman%2C+Craig&rft.aulast=Savage&rft.aufirst=Sean&rft.date=2004-01-01&rft.volume=55&rft.issue=&rft.spage=104&rft.isbn=&rft.btitle=&rft.title=Program+and+Abstracts+-+Arctic+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2004 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 - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - AGI; associations; education; geology; government agencies; national parks; processes; public awareness; public lands; U. S. National Park Service; United States ER - TY - JOUR T1 - Economic geology of the Dripping Springs area, San Carlos Apache Indian Reservation, central Arizona AN - 51589338; 2006-042307 AB - The Dripping Springs copper prospect on the San Carlos Apache Indian Reservation contains weak, vein-related Cu-Au mineralization and unexplained geophysical anomalies which suggest the presence of a buried porphyry copper target. Geological mapping and re-examination of geochemical and geophysical data lead to the siting of five diamond drill holes to test the area's potential. The drilling did not detect a porphyry copper system. Drilling results indicate that the geophysical anomalies can be explained by previously unrecognized structural displacement of the Precambrian and Paleozoic sequence along post-Laramide, high-angle normal faults. The low-angle structures previously interpreted in the area appear not to be present. The drilling did locate potentially important water resources. Mapping has confirmed the presence of significant aggregate and limestone resources in the Dripping Springs area. JF - Abstracts with Programs - Geological Society of America AU - Valorose, Christopher P AU - Manydeeds, Stephen A AU - Hitzman, Murray W AU - Stevens, John AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 355 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - mineral exploration KW - aggregate KW - limestone deposits KW - San Carlos Indian Reservation KW - mapping KW - veins KW - high-angle faults KW - normal faults KW - Arizona KW - metal ores KW - mineralization KW - gold ores KW - copper ores KW - drilling KW - Dripping Springs KW - water resources KW - porphyry copper KW - central Arizona KW - Indian reservations KW - faults KW - construction materials KW - 26A:Economic geology, general, deposits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51589338?accountid=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=Economic+geology+of+the+Dripping+Springs+area%2C+San+Carlos+Apache+Indian+Reservation%2C+central+Arizona&rft.au=Valorose%2C+Christopher+P%3BManydeeds%2C+Stephen+A%3BHitzman%2C+Murray+W%3BStevens%2C+John%3BAnonymous&rft.aulast=Valorose&rft.aufirst=Christopher&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=355&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, 2004 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 - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aggregate; Arizona; central Arizona; construction materials; copper ores; drilling; Dripping Springs; faults; gold ores; high-angle faults; Indian reservations; limestone deposits; mapping; metal ores; mineral exploration; mineralization; normal faults; porphyry copper; San Carlos Indian Reservation; United States; veins; water resources ER - TY - JOUR T1 - Stratigraphic framework of floral localities in the John Day Basin AN - 51589246; 2006-042360 AB - Fossil-bearing strata in the John Day Basin include four stratigraphic units (Clarno, John Day, Mascall, and Rattlesnake units) that span much of Cenozoic time (50-5 Ma). During the deposition of all four units, local and regional volcanism contributed high amounts of volcaniclastic sediments that buried ancient ecosystems (plants, animals, and soils). Therefore, strata in the John Day Basin contain a wealth of paleontological information regarding the evolutionary and climatic changes that occurred during much of the Cenozoic, along with radiometrically dated/datable tuff layers. Workers in the John Day Basin have collected and analyzed fossil vertebrates and plants for over a century. Vertebrate paleontologists have collected mammalian fossils from over 400 localities, most of which are associated with dated tuff layers. Paleobotantists have collected and described many new species from over 100 fossil plant localities in the area. However, most of the previous paleobotanical studies have emphasized the taxonomic descriptions of plant taxa, rather than the stratigraphic occurrences of the plant localities. In order to study floral, faunal and climatic dynamics through time, existing fossil leaf localities need to be placed in a stratigraphic and temporal framework that utilizes diagnostic marker beds, and the well-constrained chronology available from numerous dated tuff layers. Here we present the stratigraphic placement of Cenozoic-aged floral localities on a new master composite section measuring approximately 2200 m thick. This new section is a compilation of existing stratigraphic data from multiple authors that have worked in the area. Vertical placement of the leaf localities on this section are based on previously published data and new field measurements. This composite section will serve as the basis of all future paleobotanical and vertebrate studies involving biostratigraphy, climate change, and floral and faunal comparisons through time. JF - Abstracts with Programs - Geological Society of America AU - Dunn, Regan E AU - Fremd, Ted AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 364 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - Plantae KW - Chordata KW - biostratigraphy KW - John Day Basin KW - Mammalia KW - biologic evolution KW - leaves KW - climate change KW - paleoecology KW - Cenozoic KW - volcaniclastics KW - volcanism KW - Vertebrata KW - Tetrapoda KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51589246?accountid=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=Program+and+Abstracts+-+Arctic+Science+Conference&rft.atitle=Understanding+the+Bering+Glacier+hydrologic+system%3B+proposed+FY+04+Bering+Glacier+Field+Program&rft.au=Josberger%2C+Edward+G%3BShuchman%2C+Robert%3BSavage%2C+Sean%3BMeadows%2C+Guy%3BPayne%2C+John%3BGuyer%2C+Scott%3BNoyles%2C+Chris%3BDorman%2C+Craig&rft.aulast=Josberger&rft.aufirst=Edward&rft.date=2004-01-01&rft.volume=55&rft.issue=&rft.spage=97&rft.isbn=&rft.btitle=&rft.title=Program+and+Abstracts+-+Arctic+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2004 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 - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - biologic evolution; biostratigraphy; Cenozoic; Chordata; climate change; John Day Basin; leaves; Mammalia; paleoecology; Plantae; Tetrapoda; Vertebrata; volcaniclastics; volcanism ER - TY - JOUR T1 - The genesis of turquoise in the Southwestern United States AN - 51588284; 2006-042308 AB - Turquoise from ancient Mesoamerica (and SW USA/northern Mexico) has been mined for over a thousand years; beginning with Aztecs and Mayans, followed by the Native Americans and pioneers near the turn of the 20th century, and is still being mined today. However, the formation of this highly sought after gem mineral has remained controversial since its discovery. Two hypotheses have been proposed: (1) the hydrothermal or hypogene hypothesis suggests that turquoise was formed from hot fluids flowing upwards from depth; and (2) supergene hypothesis suggests that turquoise formed from cool meteoric (rain) water flowing downwards through the rocks that host the gem mineral. Here we present a new model for the formation of turquoise. Turquoise mines in the Cerrillos area, New Mexico are classic examples of turquoise deposits throughout the Southwestern United States. These are generally located within 100 meters of the surface and are associated with the most altered areas of the porphyritic quartz monzonite plutons. These plutons have several distinctive zones of alteration which include propylitic and argillic zones. Samples were collected from each zone to better understand the fluid-rock interaction. Based on detailed petrography, electron microprobe, and X-ray diffraction data, these deposits formed shortly after the emplacement of these plutons. Hydrothermal convection of the ground water interacting with the plutons leached P, Ca, Cu, Al, and Fe. These fluids moved to shallower depths depositing turquoise along fractures. The data also show that supergene processes are slowly altering the turquoise deposits of the Cerrillos area and eventually gem quality turquoise from the Southwestern United States will become more rare. JF - Abstracts with Programs - Geological Society of America AU - Phillips, C Jamie AU - Fayek, Mostafa AU - Mathien, Frances Joan AU - Milford, Homer AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 355 EP - 356 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - mineral deposits, genesis KW - calcium KW - alteration KW - endogene processes KW - copper KW - igneous rocks KW - ore-forming fluids KW - New Mexico KW - metasomatism KW - iron KW - ground water KW - plutonic rocks KW - aluminum KW - quartz monzonite KW - Santa Fe County New Mexico KW - hydrothermal alteration KW - zoning KW - plutons KW - meteoric water KW - alkaline earth metals KW - phosphorus KW - phosphates KW - Southwestern U.S. KW - emplacement KW - models KW - history KW - Cerrillos New Mexico KW - intrusions KW - gems KW - turquoise KW - metals KW - leaching KW - 28A:Economic geology, geology of nonmetal deposits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51588284?accountid=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=The+genesis+of+turquoise+in+the+Southwestern+United+States&rft.au=Phillips%2C+C+Jamie%3BFayek%2C+Mostafa%3BMathien%2C+Frances+Joan%3BMilford%2C+Homer%3BAnonymous&rft.aulast=Phillips&rft.aufirst=C&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=355&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, 2004 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 - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkaline earth metals; alteration; aluminum; calcium; Cerrillos New Mexico; copper; emplacement; endogene processes; gems; ground water; history; hydrothermal alteration; igneous rocks; intrusions; iron; leaching; metals; metasomatism; meteoric water; mineral deposits, genesis; models; New Mexico; ore-forming fluids; phosphates; phosphorus; plutonic rocks; plutons; quartz monzonite; Santa Fe County New Mexico; Southwestern U.S.; turquoise; United States; zoning ER - TY - JOUR T1 - Sustainability and the time scale of human alterations to water resources AN - 51584272; 2006-045761 AB - Human activities of different types can affect water availability and future sustainability for humans and natural ecosystems. These can include those that change the land surface and the atmosphere as well as direct diversion of surface-water and ground-water flow. The time scales of apparent consequences can range from immediate to centuries. For example, impoundment and (or) diversion of surface water results in an immediate change in the downstream flow characteristics. Land-use changes that affect runoff generally are gradual, and resulting changes to surface-water flow and ground-water recharge may not be detected without careful study of hydrologic data over several decades. Withdrawal of ground water can have the consequence of lowering the water table in the area of pumping that is immediately apparent, of land subsidence that may not be apparent for some decades, and of interception of outflow to springs, streams and wetlands that may not be apparent for decades or even centuries. In managing water resources, society tends to strictly consider short-term consequences, but is more likely to tolerate or not manage long-term consequences that will affect water resources at some time in the future. Long-term monitoring of hydrologic systems is important for understanding natural and human-induced variations; however, adaptive management based on real-time monitoring may be unreliable or insufficient because some long-term changes can persist long after the development of the water resource ceases. Sound long-term management of water resources will require development and institutionalized use of decision tools that incorporate hydrologic data, projections of climate variability and change, population and land-use trends, and societal values. JF - Abstracts with Programs - Geological Society of America AU - Leake, Stanley A AU - Filippone, Colleen AU - Jacobs, Katharine L AU - Morehouse, Barbara J AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 390 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - human activity KW - surface water KW - pumping KW - water management KW - climate change KW - variations KW - ground water KW - time scales KW - recharge KW - streamflow KW - future KW - movement KW - sustainable development KW - springs KW - water resources KW - land use KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51584272?accountid=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=Sustainability+and+the+time+scale+of+human+alterations+to+water+resources&rft.au=Leake%2C+Stanley+A%3BFilippone%2C+Colleen%3BJacobs%2C+Katharine+L%3BMorehouse%2C+Barbara+J%3BAnonymous&rft.aulast=Leake&rft.aufirst=Stanley&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=390&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, 2004 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 - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - climate change; future; ground water; human activity; land use; movement; pumping; recharge; springs; streamflow; surface water; sustainable development; time scales; variations; water management; water resources ER - TY - JOUR T1 - Proofreading your own writing? Forget it! AN - 50880733; 2005-026049 AB - First, let's define the difference between proofreading and editing your work. Editing is revising to improve abstract and opinion-rooted characteristics like clarity, flow, organization, and development. They are easy to name and hard to identify, but you know them when you see them abused in someone else's writing. Proofreading is much more straightforward: It is finding and correcting mistakes. This includes misspellings (or correctly spelled words used in the wrong place, the bane of computer spell chequers, sic), sentence fragments, punctuation, subject-verb agreement, word omissions, all those things on which teachers drilled us in school. Too often, these overzealous teachers stressed correctness over content. Both are important, but not at the expense of the other (a topic for another day). Proofreading is typically the last stage before you dance the "I'm done!" jig, or it should be. But if you rely on your own eyes and brain to ferret out those mistakes, you may be making another mistake. JF - Leading Edge (Tulsa, OK) AU - Mahrer, Kenneth D Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 1130 EP - 1131 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 23 IS - 11 SN - 1070-485X, 1070-485X KW - geology KW - case studies KW - digital data KW - errors KW - theses KW - technical writing KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50880733?accountid=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=Leading+Edge+%28Tulsa%2C+OK%29&rft.atitle=Proofreading+your+own+writing%3F+Forget+it%21&rft.au=Mahrer%2C+Kenneth+D&rft.aulast=Mahrer&rft.aufirst=Kenneth&rft.date=2004-11-01&rft.volume=23&rft.issue=11&rft.spage=1130&rft.isbn=&rft.btitle=&rft.title=Leading+Edge+%28Tulsa%2C+OK%29&rft.issn=1070485X&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1745-6592 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2005-01-01 N1 - PubXState - OK N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - case studies; digital data; errors; geology; technical writing; theses ER - TY - JOUR T1 - Ecosystem classification and relationships for Pleistocene Lake Thompson Bed, Mojave Desert, California AN - 50114434; 2005-064826 AB - A four-year study was undertaken in 1997 to understand ecosystem relationships between vegetation and edaphic features at Edwards Air Force Base, California (Edwards AFB). This report presents the comprehensive analysis and discussion for the entire Lake Thompson Bed contained within Edwards AFB. This study used the ecological land classification (ELC) method for developing ecosystem maps. The concept of an ELC is to integrate ecosystems and landforms into one coherent system with functionally related parts. The study area for the ecosystem map is the boundary of the Pleistocene Lake Thompson Bed within Edwards AFB. The ELC maps are secondary products developed from primary field data. Two mapping teams independently mapped the vegetation communities and the landforms of the study area. The characteristics of the landform and vegetation map units were used to create and describe map units for ELC maps. Samples were collected around Pleistocene Lake Thompson Bed to characterize soil chemistry, vegetation, geomorphic, and other descriptive environmental features. Analyses of the data attempted to test the interaction between geomorphic features, vegetative communities, and sampled environmental parameters. Overall, it appears that soil texture plays an important role in the development and relationships with geomorphology, soil chemistry, and vegetation. Geologically the playa surface was less heterogeneous initially, in terms of geomorphic units. As Lake Thompson Bed began to dry out in response to climate changes, dunes and alluvial fans began to form. The result was a landscape with a higher degree of soil texture variability than had existed on the initial lakebed surface. Soil texture sorting across the landscape, along with climate changes, drove the current distribution pattern of vegetation. JF - ERDC/CRREL Technical Report AU - Lichvar, Robert W AU - Sprecher, S AU - Charlton, D AU - Gustina, G AU - Ericsson, Michael P AU - Campbell, Jonathan Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 66 PB - U. S. Army Corps of Engineers, Engineer Research and Development Center, Hanover, NH KW - United States KW - dunes KW - lakes KW - mapping KW - landforms KW - ecosystems KW - vegetation KW - Cenozoic KW - California KW - Kern County California KW - Mojave Desert KW - sediments KW - ecology KW - geochemistry KW - climate KW - soils KW - patterns KW - Lake Thompson Bed KW - Quaternary KW - clastic sediments KW - Edwards Air Force Base KW - alluvial fans KW - classification KW - lacustrine environment KW - Pleistocene KW - alluvium KW - geomorphology KW - 23:Geomorphology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50114434?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=Lichvar%2C+Robert+W%3BSprecher%2C+S%3BCharlton%2C+D%3BGustina%2C+G%3BEricsson%2C+Michael+P%3BCampbell%2C+Jonathan&rft.aulast=Lichvar&rft.aufirst=Robert&rft.date=2004-11-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Ecosystem+classification+and+relationships+for+Pleistocene+Lake+Thompson+Bed%2C+Mojave+Desert%2C+California&rft.title=Ecosystem+classification+and+relationships+for+Pleistocene+Lake+Thompson+Bed%2C+Mojave+Desert%2C+California&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2005-01-01 N1 - PubXState - NH N1 - SuppNotes - Technical report N1 - Last updated - 2014-09-18 N1 - CODEN - #05435 N1 - SubjectsTermNotLitGenreText - alluvial fans; alluvium; California; Cenozoic; classification; clastic sediments; climate; dunes; ecology; ecosystems; Edwards Air Force Base; geochemistry; geomorphology; Kern County California; lacustrine environment; Lake Thompson Bed; lakes; landforms; mapping; Mojave Desert; patterns; Pleistocene; Quaternary; sediments; soils; United States; vegetation ER - TY - JOUR T1 - Remediation of spilled petroleum hydrocarbons by in situ landfarming at an arctic site AN - 28374034; 200501-36-00898 (CE); 06033549 (EN) AB - A simple, economical landfarming operation was implemented to treat 3600 m super(3) of soil at a site just northeast of Barrow, AK (latitude 71.3 degree N). Prior to landfarming, diesel-range organics (DRO) and trimethylbenzenes (TMB) were present in the soil at concentrations more than an order of magnitude greater than the established cleanup goals, and moderate levels of gasoline-range organics (GRO) and BTEX compounds were also present. The landfarming operation included application of a commercial fertilizer mix at a rate designed to approach, but not exceed, soil concentrations of 100 mg N/kg soil and 50 mg P/kg soil, and an aggressive schedule of soil tilling using heavy equipment that was readily available from a local source. The operation was designed to continue through the brief thaw season;a scheduled duration of 70 days;but was successfully completed more than 2 weeks ahead of schedule. This work demonstrates that even in extremely harsh climates, soils that are moderately contaminated with petroleum hydrocarbons can be effectively and economically remediated within reasonable time frames via landfarming. JF - Cold Regions Science and Technology AU - McCarthy, K AU - Walker, L AU - Vigoren, L AU - Bartel, J AD - US Geological Survey, 10615 SE Cherry Blossom Drive, Portland, OR 97216, USA mccarthy@usgs.gov PY - 2004 SP - 31 EP - 39 PB - Elsevier Science BV, P.O. Box 211, Amsterdam, 1000 AE, Netherlands VL - 40 IS - 1-2 SN - 0165-232X, 0165-232X KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Hydrocarbons KW - Crude oil KW - Contamination KW - Soil remediation KW - Article KW - EE 30:Soil Pollution: Monitoring, Control & Remediation (EN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/28374034?accountid=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+South+Dakota+Academy+of+Science&rft.atitle=Field+evaluation+of+pedotransfer+functions+to+estimate+saturated+soil+hydraulic+conductivity&rft.au=DeBoer%2C+Darrell+W%3BTeKroney%2C+R+G%3BAnonymous&rft.aulast=DeBoer&rft.aufirst=Darrell&rft.date=2004-01-01&rft.volume=83&rft.issue=&rft.spage=197&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+South+Dakota+Academy+of+Science&rft.issn=0096378X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 DO - http://dx.doi.org/10.1016/j.coldregions.2004.05.001 ER - TY - JOUR T1 - A conceptual model for river water and sediment dispersal in the Santa Barbara Channel, California AN - 21001191; 7489923 AB - The ephemeral Santa Clara River delivers large amounts of freshwater and sediment to the eastern Santa Barbara Channel during brief, episodic discharge events. This discharge into the channel was characterized here with shipboard measurements during floods of 1997 and 1998. Within approximately 1-km of the river mouth, the river discharge quickly stratifies into a freshened, turbid surface plume and a bottom nephloid layer. Observations immediately off the Santa Clara River mouth on a peak day of river discharge revealed that sediment rapidly settled from the freshened surface waters, as suspended sediment in the freshened surface plume contained only 6% of the sediment mass expected if the sediment mixed conservatively. On the two subsequent days the reduction of sediment mass in the surface plume continued at 50% per day. These observations suggest that river sediment undergoes rapid initial settling within 1-km of the river mouth, followed by somewhat slower rates of settling. Although we did not measure sedimentation or bottom boundary layer processes, our mass balance results suggest that almost all of the river sediment either escapes along or deposits upon the inner shelf seabed. JF - Continental Shelf Research AU - Warrick, Jonathan A AU - Mertes, Leal A K AU - Washburn, Libe AU - Siegel, David A AD - Interdepartmental Graduate Program in Marine Science and Institute for Computational Earth System Science, University of California, Santa Barbara, CA 93106, USA, jwarrick@usgs.gov Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 2029 EP - 2043 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl] VL - 24 IS - 17 SN - 0278-4343, 0278-4343 KW - Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts; Oceanic Abstracts KW - Santa Barbara Channel KW - Santa Clara River KW - River plumes KW - Hyperpycnal KW - Suspended sediment KW - USA, California, Santa Clara R. KW - Surface Water KW - Resuspended sediments KW - Floods KW - Continental shelves KW - River Flow KW - Sedimentation KW - Ocean floor KW - Plumes KW - Rivers KW - INE, USA, California, Santa Barbara Channel KW - Suspended Sediments KW - River discharge KW - Channels KW - Sediment-water interface KW - River water KW - Boundary layers KW - River Mouth KW - USA, California, Santa Barbara Channel KW - AQ 00001:Water Resources and Supplies KW - Q2 09264:Sediments and sedimentation KW - SW 0835:Streamflow and runoff KW - O 3050:Sediment Dynamics KW - M2 556.16:Runoff (556.16) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21001191?accountid=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=Continental+Shelf+Research&rft.atitle=A+conceptual+model+for+river+water+and+sediment+dispersal+in+the+Santa+Barbara+Channel%2C+California&rft.au=Warrick%2C+Jonathan+A%3BMertes%2C+Leal+A+K%3BWashburn%2C+Libe%3BSiegel%2C+David+A&rft.aulast=Warrick&rft.aufirst=Jonathan&rft.date=2004-11-01&rft.volume=24&rft.issue=17&rft.spage=2029&rft.isbn=&rft.btitle=&rft.title=Continental+Shelf+Research&rft.issn=02784343&rft_id=info:doi/10.1016%2Fj.csr.2004.07.010 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-08-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Channels; Resuspended sediments; Sediment-water interface; River water; Boundary layers; Continental shelves; River discharge; Ocean floor; Sedimentation; Floods; Rivers; Suspended Sediments; River Mouth; River Flow; Surface Water; Plumes; INE, USA, California, Santa Barbara Channel; USA, California, Santa Clara R.; USA, California, Santa Barbara Channel DO - http://dx.doi.org/10.1016/j.csr.2004.07.010 ER - TY - JOUR T1 - REDISTRIBUTION AND GROWTH OF THE CASPIAN TERN POPULATION IN THE PACIFIC COAST REGION OF NORTH AMERICA, 1981-2000 AN - 20162703; 6122501 AB - We examined nesting distribution and demography of the Pacific Coast population of Caspian Terns (Sterna caspia) using breeding records and band recoveries spanning two decades since the first population assessment. Since 1980, population size has more than doubled to about 12 900 pairs, yet the proportion of the population nesting at inland (18%) versus coastal sites (82%) has remained constant. Although the breeding range of the Pacific Coast population has expanded northward into Alaska and farther south in Mexico, there was no net latitudinal shift in the distribution of breeding pairs or new colonies. The distribution of breeding birds among areas changed dramatically, however, with 69% of breeding terns now nesting in Oregon (primarily in the Columbia River estuary) versus 4% during the late 1970s. During the past 20 years, there has continued to be a greater proportion of Caspian Terns breeding at anthropogenic sites compared to natural sites. Estimated annual survival rates for hatch-year and after-third-year birds during 1981- 1998 were greater than during 1955-1980, consistent with the higher rate of population increase in recent decades. Fecundity required to maintain a stable population ( lambda = 1) was estimated at 0.32-0.74 fledglings pair-1, depending on band recovery probabilities for subadults. Caspian Terns readily moved among breeding sites and rapidly colonized new areas; however, a greater concentration of breeding Caspian Terns among fewer colonies in response to anthropogenic factors is an important conservation concern for this species.Redistribucion y Crecimiento de la Poblacion de Sterna caspia en la Region de la Costa Pacifica de America del Norte entre 1981 y 2000Original Abstract: Se examino la distribucion de anidamientos y la demografia de la poblacion de Sterna caspia en la costa del Pacifico usando registros reproductivos y anillos recobrados de aves marcadas durante dos decadas desde la primera evaluacion poblacional. Desde 1980 el tamano poblacional se duplico a 12 900 parejas, aunque la proporcion de la poblacion anidando en la zona interior (18%) versus la zona costera (82%) permanecio constante. A pesar de que el rango reproductivo de la poblacion costera del Pacifico se expandio hacia el norte llegando a Alaska y hacia el sur hasta Mexico, no hubo un cambio latitudinal neto en la distribucion de parejas reproductivas o de nuevas colonias. Sin embargo, la distribucion de aves reproductivas entre las areas cambio dramaticamente, con un 69% de los individuos reproductivos de Sterna caspia anidando ahora en Oregon (principalmente en el estuario del Rio Columbia) comparado con un 4% a fines de la decada del 70. Durante los ultimos 20 anos continuo habiendo una mayor proporcion de individuos de Sterna caspia anidando en sitios con actividad antropogenica en comparacion con areas naturales. Las tasas de supervivencia anual para aves con menos de un ano y aves con mas de tres anos fueron mayores durante 1981-1998 que durante 1955-1980, lo que es consistente con una mayor tasa de crecimiento poblacional en decadas recientes. La fecundidad requerida para mantener estable la poblacion ( lambda = 1) se estimo en 0.32-0.74 volantones producidos por pareja, dependiendo de la probabilidad de recuperacion de anillos en aves subadultas. Sterna caspia es capaz de moverse entre sitios reproductivos y coloniza nuevas areas rapidamente. No obstante, una mayor concentracion de individuos reproductivos de Sterna caspia en unas pocas colonias, como respuesta a factores antropogenicos, es una importante preocupacion para la conservacion de esta especie. JF - Condor AU - Suryan, R M AU - Craig, D P AU - Roby, D D AU - Chelgren, N D AU - Collis, K AU - Shuford, W D AU - Lyons, DE AD - USGS-Oregon Cooperative Fish and Wildlife Research Unit, Department of Fisheries and Wildlife, Oregon State University, Hatfield Marine Science Center, 2030 S.E. Marine Science Dr., Newport, OR 97365 Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 777 EP - 790 PB - Cooper Ornithological Society VL - 106 IS - 4 SN - 0010-5422, 0010-5422 KW - Caspian tern KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Sustainability Science Abstracts; Oceanic Abstracts KW - demography KW - population number KW - Anthropogenic factors KW - Survival KW - breeding sites KW - Population dynamics KW - fecundity KW - Demography KW - INE, USA, Columbia Estuary KW - Colonies KW - Growth KW - breeding KW - Nesting KW - Reproductive behaviour KW - USA, Oregon KW - Coasts KW - North America KW - anthropogenic factors KW - Estuaries KW - Environmental impact KW - Brackish KW - INE, USA, Alaska KW - Aves KW - Coastal zone KW - Fecundity KW - Breeding sites KW - ISE, Mexico KW - Conservation KW - Sterna caspia KW - survival KW - Q5 08523:Conservation, wildlife management and recreation KW - D 04671:Birds KW - O 4090:Conservation and Environmental Protection KW - M3 1010:Issues in Sustainable Development KW - Q1 08442:Population dynamics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20162703?accountid=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=REDISTRIBUTION+AND+GROWTH+OF+THE+CASPIAN+TERN+POPULATION+IN+THE+PACIFIC+COAST+REGION+OF+NORTH+AMERICA%2C+1981-2000&rft.au=Suryan%2C+R+M%3BCraig%2C+D+P%3BRoby%2C+D+D%3BChelgren%2C+N+D%3BCollis%2C+K%3BShuford%2C+W+D%3BLyons%2C+DE&rft.aulast=Suryan&rft.aufirst=R&rft.date=2004-11-01&rft.volume=106&rft.issue=4&rft.spage=777&rft.isbn=&rft.btitle=&rft.title=Condor&rft.issn=00105422&rft_id=info:doi/10.1043%2F0010-5422%282004%291062.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-09-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Growth; Fecundity; Breeding sites; Nesting; Estuaries; Environmental impact; Anthropogenic factors; Reproductive behaviour; Demography; Colonies; Survival; Coasts; demography; population number; anthropogenic factors; breeding sites; Population dynamics; Aves; fecundity; Coastal zone; breeding; Conservation; survival; Sterna caspia; North America; INE, USA, Columbia Estuary; ISE, Mexico; INE, USA, Alaska; USA, Oregon; Brackish DO - http://dx.doi.org/10.1043/0010-5422(2004)106<0777:RAGOTC>2.0.CO;2 ER - TY - JOUR T1 - Decomposed Gosling Feet Provide Evidence of Insecticide Exposure AN - 19722048; 6038985 AB - Canada goose goslings were exposed to turf sprayed with D . Z . N registered diazinon 50W application (2.24 kg a.i./ha). The control plot was subjected to a water application. One foot from each bird was placed outdoors for 7 d to decompose and the other foot was kept frozen. Diazinon residues were analyzed on both feet. Results showed that diazinon was detected from undecomposed and decomposed feet of the birds. Diazinon residues were below the level of detection (<0.01 ppm, a.i.) on the feet from the control goslings. Decomposed feet may be used for determining insecticide exposure when the traditional matrices are not available. JF - Environmental Monitoring and Assessment AU - Vyas, N B AU - Spann, J W AU - Hulse, C S AU - Torrez, M AU - Williams, B I AU - Leffel, R AD - United States Department of Interior, United States Geological Survey, Patuxent Wildlife Research Center, Laurel, Maryland, U.S.A., Nimish_Vyas@usgs.gov Y1 - 2004/11// PY - 2004 DA - Nov 2004 SP - 351 EP - 361 PB - Kluwer Academic Publishers VL - 98 IS - 1-3 SN - 0167-6369, 0167-6369 KW - Ecology Abstracts; Pollution Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Toxicology Abstracts KW - Bioindicators KW - Environmental monitoring KW - Pollution effects KW - Turf KW - Insecticides KW - Foot KW - Diazinon KW - Aquatic birds KW - D 04070:Pollution KW - O 4020:Pollution - Organisms/Ecology/Toxicology KW - P 2000:FRESHWATER POLLUTION KW - Q5 08504:Effects on organisms KW - X 24136:Environmental impact UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19722048?accountid=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+Monitoring+and+Assessment&rft.atitle=Decomposed+Gosling+Feet+Provide+Evidence+of+Insecticide+Exposure&rft.au=Vyas%2C+N+B%3BSpann%2C+J+W%3BHulse%2C+C+S%3BTorrez%2C+M%3BWilliams%2C+B+I%3BLeffel%2C+R&rft.aulast=Vyas&rft.aufirst=N&rft.date=2004-11-01&rft.volume=98&rft.issue=1-3&rft.spage=351&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/10.1023%2FB%3AEMAS.0000038195.38438.be LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-06-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Insecticides; Pollution effects; Aquatic birds; Foot; Turf; Diazinon; Bioindicators DO - http://dx.doi.org/10.1023/B:EMAS.0000038195.38438.be ER - TY - JOUR T1 - Sequestration of carbon in soil organic matter in Senegal: an overview AN - 19415397; 6054617 AB - Sequestration of Carbon in Soil Organic Matter (SOCSOM) in Senegal is a multi-disciplinary development project planned and refined through two international workshops. The project was implemented by integrating a core of international experts in remote sensing, biogeochemical modeling, community socio-economic assessments, and carbon measurements in a fully collaborative manner with Senegal organizations, national scientists, and local knowledge and expertise. The study addresses the potential role developing countries in semi-arid areas can play in climate mitigation activities. Multiple benefits to smallholders could accrue as a result of management practices to re-establish soil carbon content lost because of land use changes or management practices that are not sustainable. The specific importance for the Sahel is because of the high vulnerability to climate change in already impoverished rural societies. The project focuses on four objectives in specific locations across the agroecological zones of Senegal. These objectives are: use of soil sampling and biogeochemical modeling to quantify the biophysical potential for carbon sequestration and to determine the sensitivity of the carbon stocks to various management and climate scenarios, to evaluate the socio-economic and cultural requirements necessary for successful project implementation directed toward an aggregation of smallholders to sequester around 100,000t carbon (C), to support capacity building to develop a Carbon Specialist Team, and to initiate extrapolation from site-specific project areas to the Sahel region and the national level. JF - Journal of Arid Environments AU - Tieszen, L L AU - Tappan, G G AU - Toure, A AD - USGS/EROS Data Center, 47914 252nd Street, Sioux Falls, SD 57198, USA, tieszen@usgs.gov Y1 - 2004/11// PY - 2004 DA - Nov 2004 SP - 409 EP - 425 PB - Elsevier Ltd VL - 59 IS - 3 SN - 0140-1963, 0140-1963 KW - Sustainability Science Abstracts; Pollution Abstracts; Ecology Abstracts KW - Development projects KW - Biogeochemistry KW - Organic matter KW - Arid environments KW - Climatic changes KW - Remote sensing KW - Socioeconomics KW - Sustainable development KW - Land use KW - Soil KW - Carbon sequestration KW - Carbon KW - Senegal KW - Deserts KW - Semiarid environments KW - Reviews KW - Sampling KW - Developing countries KW - M3 1010:Issues in Sustainable Development KW - P 5000:LAND POLLUTION KW - D 04600:Soil UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19415397?accountid=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=Sequestration+of+carbon+in+soil+organic+matter+in+Senegal%3A+an+overview&rft.au=Tieszen%2C+L+L%3BTappan%2C+G+G%3BToure%2C+A&rft.aulast=Tieszen&rft.aufirst=L&rft.date=2004-11-01&rft.volume=59&rft.issue=3&rft.spage=409&rft.isbn=&rft.btitle=&rft.title=Journal+of+Arid+Environments&rft.issn=01401963&rft_id=info:doi/10.1016%2Fj.jaridenv.2004.04.002 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-01-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Soil; Carbon; Reviews; Organic matter; Climatic changes; Arid environments; Sampling; Development projects; Biogeochemistry; Remote sensing; Sustainable development; Socioeconomics; Land use; Carbon sequestration; Semiarid environments; Deserts; Developing countries; Senegal DO - http://dx.doi.org/10.1016/j.jaridenv.2004.04.002 ER - TY - JOUR T1 - Selenium in Water, Sediment, Plants, Invertebrates, and Fish in the Blackfoot River Drainage AN - 19405468; 6105204 AB - Nine stream sites in the Blackfoot River watershed in southeastern Idaho were sampled in September 2000 for water, surficial sediment, aquatic plants, aquatic invertebrates, and fish. Selenium was measured in these aquatic ecosystem components, and a hazard assessment was performed on the data. Water quality characteristics such as pH, hardness, and specific conductance were relatively uniform among the nine sites examined. Selenium was elevated in water, sediment, aquatic plants, aquatic invertebrates, and fish from several sites suggesting deposition in sediments and food web cycling through plants and invertebrates. Selenium was elevated to concentrations of concern in water at eight sites (>5 mu g/L), sediment at three sites (>2 mu g/g), aquatic plants at four sites (>4 mu g/g), aquatic invertebrates at five sites (>3 mu g/g), and fish at seven sites (>4 mu g/g in whole body). The hazard assessment of selenium in the aquatic environment suggested low hazard at Sheep Creek, moderate hazard at Trail Creek, upper Slug Creek, lower Slug Creek, and lower Blackfoot River, and high hazard at Angus Creek, upper East Mill Creek, lower East Mill Creek, and Dry Valley Creek. The results of this study are consistent with results of a previous investigation and indicate that selenium concentrations from the phosphate mining area of southeastern Idaho were sufficiently elevated in several ecosystem components to cause adverse effects to aquatic resources in the Blackfoot River watershed. JF - Water, Air, & Soil Pollution AU - Hamilton, S J AU - Buhl, K J AD - U.S. Geological Survey, Columbia Environmental Research Center, Field Research Station, 31247 436th Avenue, Yankton, South Dakota 57078-6364, U.S.A., karen_faerber@usgs.gov Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 3 EP - 34 PB - Kluwer Academic Publishers VL - 159 IS - 1 SN - 0049-6979, 0049-6979 KW - ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Water Resources Abstracts; Toxicology Abstracts; Pollution Abstracts KW - USA, Montana, Blackfoot R. KW - Heavy metals KW - Freshwater KW - Water quality KW - Freshwater fish KW - Watersheds KW - Invertebrata KW - Sedimentation KW - Rivers KW - Aquatic plants KW - Aquatic environment KW - USA, Idaho KW - USA, Idaho, Blackfoot R. KW - Fish KW - Mining KW - USA, Minnesota, Valley Creek KW - Hazard assessment KW - Fluvial Sediments KW - Invertebrates KW - Streams KW - Pisces KW - Hazards KW - Selenium KW - Aquatic Plants KW - Assessments KW - Food webs KW - Drainage KW - Sediments KW - Water pollution KW - Air pollution KW - Q5 08503:Characteristics, behavior and fate KW - X 24166:Environmental impact KW - P 2000:FRESHWATER POLLUTION KW - SW 3030:Effects of pollution KW - AQ 00008:Effects of Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19405468?accountid=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=Selenium+in+Water%2C+Sediment%2C+Plants%2C+Invertebrates%2C+and+Fish+in+the+Blackfoot+River+Drainage&rft.au=Hamilton%2C+S+J%3BBuhl%2C+K+J&rft.aulast=Hamilton&rft.aufirst=S&rft.date=2004-11-01&rft.volume=&rft.issue=&rft.spage=30&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-02-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Rivers; Aquatic plants; Watersheds; Freshwater fish; Water quality; Water pollution; Hazards; Air pollution; Selenium; Mining; Sedimentation; Food webs; Hazard assessment; Heavy metals; Drainage; Sediments; Aquatic environment; Aquatic Plants; Assessments; Fluvial Sediments; Fish; Invertebrates; Streams; Pisces; Invertebrata; USA, Idaho; USA, Idaho, Blackfoot R.; USA, Montana, Blackfoot R.; USA, Minnesota, Valley Creek; Freshwater DO - http://dx.doi.org/10.1023/B:WATE.0000049143.55199.76 ER - TY - JOUR T1 - Decomposition and Organic Matter Quality in Continental Peatlands: The Ghost of Permafrost Past AN - 17816062; 6192303 AB - Permafrost patterning in boreal peatlands contributes to landscape heterogeneity, as peat plateaus, palsas, and localized permafrost mounds are interspersed among unfrozen bogs and fens. The degradation of localized permafrost in peatlands alters local topography, hydrology, thermal regimes, and plant communities, and creates unique peatland features called "internal lawns." I used laboratory incubations to quantify carbon dioxide (CO sub(2)) production in peat formed under different permafrost regimes (with permafrost, without permafrost, melted permafrost), and explored the relationships among proximate organic matter fractions, nutrient concentrations, and decomposition. Peat within each feature (internal lawn, bog, permafrost mound) is more chemically similar than peat collected within the same province (Alberta, Saskatchewan) or within depth intervals (surface, deep). Internal lawn peat produces more CO sub(2) than the other peatland types. Across peatland features, acid-insoluble material (AIM) and AIM/nitrogen are significant predictors of decomposition. However, within each peatland feature, soluble proximate fractions are better predictors of CO sub(2) production. Permafrost stability in peatlands influences plant and soil environments, which control litter inputs, organic matter quality, and decomposition rates. Spatial patterns of permafrost, as well as ecosystem processes within various permafrost features, should be considered when assessing the fate of soil carbon in northern ecosystems. JF - Ecosystems AU - Turetsky, M R AD - U.S. Geological Survey, 345 Middlefield Road MS962, Menlo Park, CA 94025, USA, mturetsky@usgs.gov Y1 - 2004/11// PY - 2004 DA - Nov 2004 SP - 740 EP - 750 VL - 7 IS - 7 SN - 1432-9840, 1432-9840 KW - Ecology Abstracts KW - Peatlands KW - Canada, Saskatchewan KW - Canada, Alberta KW - Organic matter KW - Carbon cycle KW - Permafrost KW - Decomposition KW - Soil nutrients KW - D 04200:Wetlands UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17816062?accountid=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=Ecosystems&rft.atitle=Decomposition+and+Organic+Matter+Quality+in+Continental+Peatlands%3A+The+Ghost+of+Permafrost+Past&rft.au=Turetsky%2C+M+R&rft.aulast=Turetsky&rft.aufirst=M&rft.date=2004-11-01&rft.volume=7&rft.issue=7&rft.spage=740&rft.isbn=&rft.btitle=&rft.title=Ecosystems&rft.issn=14329840&rft_id=info:doi/10.1007%2Fs10021-004-0247-z LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Peatlands; Organic matter; Carbon cycle; Permafrost; Decomposition; Soil nutrients; Canada, Saskatchewan; Canada, Alberta DO - http://dx.doi.org/10.1007/s10021-004-0247-z ER - TY - JOUR T1 - The springs of Lake Patzcuaro: chemistry, salt-balance, and implications for the water balance of the lake AN - 17716311; 5999544 AB - Lake Patzcuaro, the center of the ancient Tarascan civilization located in the Mexican altiplano west of the city of Morelia, has neither river input nor outflow. The relatively constant lake-salinity over the past centuries indicates the lake is in chemical steady state. Springs of the south shore constitute the primary visible input to the lake, so influx and discharge must be via sub- lacustrine ground water. The authors report on the chemistry and stable isotope composition of the springs, deeming them representative of ground-water input. The springs are dominated by Ca, Mg and Na, whereas the lake is dominated by Na. Combining these results with previously published precipitation/rainfall measurements on the lake, the authors calculate the chemical evolution from spring water to lake water, and also calculate a salt balance of the ground- water-lake system. Comparing Cl and delta super(18)O compositions in the springs and lake water indicates that 75-80% of the spring water is lost evaporatively during evolution toward lake composition. During evaporation Ca and Mg are lost from the water by carbonate precipitation. Each liter of spring water discharging into the lake precipitates about 18.7 mg of CaCO sub(3). Salt balance calculations indicate that ground water input to the lake is 85.9 x 10 super(6) m super(3)/a and ground water discharge from the lake is 23.0 x 10 super(6) m super(3)/a. Thus, the discharge is about 27% of the input, with the rest balanced by evaporation. A calculation of time to reach steady-state ab initio indicates that the Cl concentration of the present day lake would be reached in about 150 a. JF - Applied Geochemistry AU - Bischoff, J L AU - Israde-Alcantara, I AU - Garduno-Monroy, V H AU - Shanks, WC III AD - US Geological Survey, MS910, 345 Middlefield Road, Menlo Park, CA 94025, USA, jbischoff@usgs.gov Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 1827 EP - 1835 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl] VL - 19 IS - 11 SN - 0883-2927, 0883-2927 KW - Water Resources Abstracts; Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Springs KW - Groundwater Discharge KW - Evaporation KW - Rainfall KW - Limnology KW - Salinity KW - Lakes KW - Chemical Precipitation KW - Ground water KW - Mexico, Michoacan, Patzcuaro L. KW - Salt Balance KW - Carbonates KW - Water balance KW - Stable Isotopes KW - Surface-groundwater Relations KW - Chemical precipitation KW - Oxygen isotope ratio KW - Groundwater KW - AQ 00001:Water Resources and Supplies KW - SW 0880:Chemical processes KW - SW 0850:Lakes KW - Q2 09184:Composition of water UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17716311?accountid=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=The+springs+of+Lake+Patzcuaro%3A+chemistry%2C+salt-balance%2C+and+implications+for+the+water+balance+of+the+lake&rft.au=Bischoff%2C+J+L%3BIsrade-Alcantara%2C+I%3BGarduno-Monroy%2C+V+H%3BShanks%2C+WC+III&rft.aulast=Bischoff&rft.aufirst=J&rft.date=2004-11-01&rft.volume=19&rft.issue=11&rft.spage=1827&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/10.1016%2Fj.apgeochem.2004.04.003 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Water balance; Lakes; Salinity; Chemical precipitation; Carbonates; Ground water; Limnology; Oxygen isotope ratio; Salt Balance; Stable Isotopes; Groundwater Discharge; Surface-groundwater Relations; Springs; Evaporation; Rainfall; Chemical Precipitation; Groundwater; Mexico, Michoacan, Patzcuaro L. DO - http://dx.doi.org/10.1016/j.apgeochem.2004.04.003 ER - TY - JOUR T1 - Geochemistry, radiocarbon ages, and paleorecharge conditions along a transect in the central High Plains aquifer, southwestern Kansas, USA AN - 17711314; 5999536 AB - Water samples from short-screen monitoring wells installed along a 90-km transect in southwestern Kansas were analyzed for major ions, trace elements, isotopes (H, B, C, N, O, S, Sr), and dissolved gases (He, Ne, N sub(2), Ar, O sub(2), CH sub(4)) to evaluate the geochemistry, radiocarbon ages, and paleorecharge conditions in the unconfined central High Plains aquifer. The primary reactions controlling water chemistry were dedolomitization, cation exchange, feldspar weathering, and O sub(2) reduction and denitrification. Radiocarbon ages adjusted for C mass transfers ranged from 10 ka to reduce the average NO sub(3) concentration in recent recharge to the Holocene background concentration. JF - Applied Geochemistry AU - McMahon, P B AU - Boehlke, J K AU - Christenson, S C AD - US Geological Survey, Denver Federal Center, Mail Stop 415, Denver, CO 80225, USA, pmcmahon@usgs.gov Y1 - 2004/11// PY - 2004 DA - Nov 2004 SP - 1655 EP - 1686 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 19 IS - 11 SN - 0883-2927, 0883-2927 KW - Water Resources Abstracts; Aqualine Abstracts KW - Aquifers KW - Manure KW - Deep Water KW - Fertilizers KW - Sand KW - Denitrification KW - Cation Exchange KW - Recharge KW - Loess KW - Geochemistry KW - Bases KW - Temperature KW - Mass Transfer KW - Trace Elements KW - USA, Kansas KW - Model Studies KW - Natural Gas KW - Monitoring KW - Groundwater Movement KW - Groundwater Recharge KW - SW 0880:Chemical processes KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17711314?accountid=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=Geochemistry%2C+radiocarbon+ages%2C+and+paleorecharge+conditions+along+a+transect+in+the+central+High+Plains+aquifer%2C+southwestern+Kansas%2C+USA&rft.au=McMahon%2C+P+B%3BBoehlke%2C+J+K%3BChristenson%2C+S+C&rft.aulast=McMahon&rft.aufirst=P&rft.date=2004-11-01&rft.volume=19&rft.issue=11&rft.spage=1655&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/10.1016%2Fj.apgeochem.2004.05.003 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Aquifers; Recharge; Manure; Loess; Geochemistry; Mass Transfer; Deep Water; Temperature; Bases; Trace Elements; Model Studies; Natural Gas; Fertilizers; Sand; Denitrification; Monitoring; Groundwater Recharge; Groundwater Movement; Cation Exchange; USA, Kansas DO - http://dx.doi.org/10.1016/j.apgeochem.2004.05.003 ER - TY - JOUR T1 - Impacts of land use and climate change on carbon dynamics in south-central Senegal AN - 17608991; 6054626 AB - Total carbon stock in vegetation and soils was reduced 37% in south-central Senegal from 1900 to 2000. The decreasing trend will continue during the 21st century unless forest clearing is stopped, selective logging dramatically reduced, and climate change, if any, relatively small. Developing a sustainable fuelwood and charcoal production system could be the most feasible and significant carbon sequestration project in the region. If future climate changes dramatically as some models have predicted, cropland productivity will drop more than 65% around 2100, posing a serious threat to food security and the efficiency of carbon sequestration projects. JF - Journal of Arid Environments AU - Liu, S AU - Kaire, M AU - Wood, E AU - Diallo, O AU - Tieszen, L L AD - SAIC, US Geological Survey (USGS)/Earth Resources Observation Systems (EROS) Data Center, Sioux Falls, SD 57198, USA, sliu@usgs.gov Y1 - 2004/11// PY - 2004 DA - Nov 2004 SP - 583 EP - 604 PB - Elsevier Ltd VL - 59 IS - 3 SN - 0140-1963, 0140-1963 KW - Meteorological & Geoastrophysical Abstracts; Sustainability Science Abstracts KW - M2 551.583:Variations (551.583) KW - M3 1010:Issues in Sustainable Development KW - M2 551.510.3/.4:Physical Properties/Composition (551.510.3/.4) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17608991?accountid=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=Journal+of+Arid+Environments&rft.atitle=Impacts+of+land+use+and+climate+change+on+carbon+dynamics+in+south-central+Senegal&rft.au=Liu%2C+S%3BKaire%2C+M%3BWood%2C+E%3BDiallo%2C+O%3BTieszen%2C+L+L&rft.aulast=Liu&rft.aufirst=S&rft.date=2004-11-01&rft.volume=59&rft.issue=3&rft.spage=583&rft.isbn=&rft.btitle=&rft.title=Journal+of+Arid+Environments&rft.issn=01401963&rft_id=info:doi/10.1016%2Fj.jaridenv.2004.03.023 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1016/j.jaridenv.2004.03.023 ER - TY - JOUR T1 - Ecoregions and land cover trends in Senegal AN - 17607849; 6054618 AB - This study examines long-term changes in Senegal's natural resources. We monitor and quantify land use and land cover changes occurring across Senegal using nearly 40 years of satellite imagery, aerial surveys, and fieldwork. We stratify Senegal into ecological regions and present land use and land cover trends for each region, followed by a national summary. Results aggregated to the national level show moderate change, with a modest decrease in savannas from 74 to 70 percent from 1965 to 2000, and an expansion of cropland from 17 to 21 percent. However, at the ecoregion scale, we observed rapid change in some and relative stability in others. One particular concern is the decline in Senegal's biodiverse forests. However, in the year 2000, Senegal's savannas, woodlands, and forests still cover more than two-thirds of the country, and the rate of agricultural expansion has slowed. JF - Journal of Arid Environments AU - Tappan, G G AU - Sall, M AU - Wood, E C AU - Cushing, M AD - SAIC, US Geological Survey (USGS)/Earth Resources Observation Systems (EROS) Data Center, Sioux Falls, SD 57198, USA, tappan@usgs.gov Y1 - 2004/11// PY - 2004 DA - Nov 2004 SP - 427 EP - 462 VL - 59 IS - 3 SN - 0140-1963, 0140-1963 KW - Sustainability Science Abstracts; Ecology Abstracts KW - M3 1010:Issues in Sustainable Development KW - D 04099:Ecosystem studies - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17607849?accountid=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=Ecoregions+and+land+cover+trends+in+Senegal&rft.au=Tappan%2C+G+G%3BSall%2C+M%3BWood%2C+E+C%3BCushing%2C+M&rft.aulast=Tappan&rft.aufirst=G&rft.date=2004-11-01&rft.volume=59&rft.issue=3&rft.spage=427&rft.isbn=&rft.btitle=&rft.title=Journal+of+Arid+Environments&rft.issn=01401963&rft_id=info:doi/10.1016%2Fj.jaridenv.2004.03.018 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1016/j.jaridenv.2004.03.018 ER - TY - JOUR T1 - Effects of nutritional history on nitrogen assimilation in congeneric temperate and tropical scleractinian corals AN - 17508602; 6281911 AB - The nutritional history of corals is known to affect metabolic processes such as inorganic nutrient uptake and photosynthesis, but little is known about how it affects assimilation efficiency of ingested prey items or the partitioning of prey nitrogen between the host and symbiont. The temperate scleractinian coral Oculina arbuscula and its tropical congener Oculina diffusa were acclimated to three nutritional regimes (fed twice weekly, starved, starved with an inorganic nutrient supplement), then fed Artemia nauplii labeled with the stable isotope tracer super(15)N. Fed corals of both species had the lowest assimilation efficiencies (36-51% for O. arbuscula, 38-57% for O. diffusa), but were not statistically different from the other nutritional regimes. Fed and starved corals also had similar NH sub(4) super(+) excretion rates. This is inconsistent with decreased nitrogen excretion and reduced amino acid catabolism predicted by both the nitrogen recycling and conservation paradigms. In coral host tissue, similar to 90% of the ingested super(15)N was in the TCA-insoluble (protein and nucleic acids) and ethanol-soluble (amino acids/low molecular weight compounds) within 4 h of feeding. The TCA-insoluble pool was also the dominant repository of the label in zooxanthellae of both species (40-53% in O. arbuscula, 50-60% in O. diffusa). However, nutritional history had no effect on the distribution of prey super(15)N within the biochemical pools of the host or the zooxanthellae for either species. This result is consistent with the nitrogen conservation hypothesis, as preferential carbon metabolism would minimize the effects of starvation on nitrogen-containing biochemical pools. JF - Marine Biology AU - Piniak, Gregory A AU - Lipschultz, Fredric AD - Duke University Marine Laboratory, 135 Duke Marine Lab Road, Beaufort, NC 28516, USA, gpiniak@usgs.gov Y1 - 2004/11// PY - 2004 DA - Nov 2004 SP - 1085 EP - 1096 PB - Springer-Verlag (Berlin), Heidelberger Platz 3 Berlin 14197 Germany, [mailto:subscriptions@springer.de], [URL:http://www.springer.de/] VL - 145 IS - 6 SN - 0025-3162, 0025-3162 KW - Diffuse ivory coral KW - Ivory bush coral KW - Compact ivory bush coral KW - Oceanic Abstracts; Ecology Abstracts KW - Zooxanthellae KW - Predation KW - Nutrition KW - Interspecific relationships KW - Coral KW - Temperate zones KW - Starvation KW - Diets KW - Marine KW - Symbionts KW - nucleic acids KW - Oculina arbuscula KW - Tropical environment KW - Uptake KW - Feeding experiments KW - Excretion KW - Nitrogen isotopes KW - Nauplii KW - Nucleic acids KW - Nitrogen KW - Oculina diffusa KW - O 1070:Ecology/Community Studies KW - D 04655:Invertebrates - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17508602?accountid=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+Biology&rft.atitle=Effects+of+nutritional+history+on+nitrogen+assimilation+in+congeneric+temperate+and+tropical+scleractinian+corals&rft.au=Piniak%2C+Gregory+A%3BLipschultz%2C+Fredric&rft.aulast=Piniak&rft.aufirst=Gregory&rft.date=2004-11-01&rft.volume=145&rft.issue=6&rft.spage=1085&rft.isbn=&rft.btitle=&rft.title=Marine+Biology&rft.issn=00253162&rft_id=info:doi/10.1007%2Fs00227-004-1410-y LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Oculina diffusa; Oculina arbuscula; Coral; Nutrition; Predation; Nitrogen isotopes; Excretion; Zooxanthellae; Nitrogen; Tropical environment; Temperate zones; Diets; Feeding experiments; Uptake; Nucleic acids; Starvation; Symbionts; Nauplii; Interspecific relationships; nucleic acids; Marine DO - http://dx.doi.org/10.1007/s00227-004-1410-y ER - TY - JOUR T1 - Vegetation Change After 65 Years of Grazing and Grazing Exclusion AN - 17423897; 6212115 AB - The Nevada Plots exclosure system was constructed in 1937 following passage of the Taylor Grazing Act to assess long-term effects of livestock grazing on Nevada rangelands. A comparison of vegetation characteristics inside and outside exclosures was conducted during 2001 and 2002 at 16 sites. Data analysis was performed with a paired t test. Out of 238 cover and density comparisons between inside and outside exclosures at each site, 34 (14% of total) were different (P 4 species at any site. Few changes in species composition, cover, density, and production inside and outside exclosures have occurred in 65 years, indicating that recovery rates since pre-Taylor Grazing Act conditions were similar under moderate grazing and grazing exclusion on these exclosure sites.Original Abstract: El sistema de exclusiones de Nevada se construyo en 1937, despues de ser aprobada el Acta Taylor de Apacentamiento, para evaluar los efectos a largo plazo del apacentamiento del ganado sobre los pastizales de Nevada. Durante los anos 2001 y 2002, en 16 sitios se condujo una comparacion de las caracteristicas de la vegetacion dentro y fuera de las exclusiones. El analisis de los datos se llevo a cabo mediante pruebas de t-student para muestras apareadas. De 238 comparaciones de cobertura y densidad de la vegetacion dentro y fuera de las exclusiones, 34 de ellas (14% del total) fueron diferentes (P < 0.05). Generalmente, donde ocurrieron las diferencias, la cobertura basal y de la copa fueron mayores dentro de las exclusiones y la densidad fue mayor fuera de ellas. En tres sitios apacentados con ovinos (Ovis aries) los arbustos fueron mas altos dentro de las exclusiones. Los zacates perennes no mostraron diferencias verticales de altura. La produccion de biomasa vegetal aerea fue diferente solo en un sitio. La diversidad de la comunidad vegetal dentro y fuera de las exclusiones fue igual en 11 de los 16 sitios. La riqueza de especies fue similar en todos los sitios y nunca vario por mas de 4 especies en ninguno de ellos. Pocos cambios han ocurrido en 65 anos en la composicion de especies, cobertura, densidad y produccion dentro y fuera de las exclusiones, indicando que en estos sitos de exclusion las tasas de recuperacion anteriores a las condiciones establecidas por el Acta Taylor fueron similares bajo un apacentamiento moderado y la exclusion al apacentamiento. JF - Rangeland Ecology & Management AU - Courtois AU - Perryman, B L AU - Hussein, H S AD - Rangeland technician, Bureau of Land Management, Socorro, NM 87801 Y1 - 2004/11// PY - 2004 DA - Nov 2004 SP - 574 EP - 582 PB - Society for Range Management VL - 57 IS - 6 SN - 1550-7424, 1550-7424 KW - Ecology Abstracts KW - Shrubs KW - Data processing KW - Vegetation changes KW - Grazing KW - Plant communities KW - Species composition KW - USA, Nevada KW - Canopies KW - Range management KW - Species richness KW - Ovis aries KW - D 04700:Management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17423897?accountid=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=Rangeland+Ecology+%26+Management&rft.atitle=Vegetation+Change+After+65+Years+of+Grazing+and+Grazing+Exclusion&rft.au=Courtois%3BPerryman%2C+B+L%3BHussein%2C+H+S&rft.aulast=Courtois&rft.aufirst=&rft.date=2004-11-01&rft.volume=57&rft.issue=6&rft.spage=574&rft.isbn=&rft.btitle=&rft.title=Rangeland+Ecology+%26+Management&rft.issn=15507424&rft_id=info:doi/10.2111%2F1551-5028%282004%290572.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=1550-7424&volume=57&page=574 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-02-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Shrubs; Data processing; Vegetation changes; Grazing; Plant communities; Species composition; Canopies; Range management; Species richness; Ovis aries; USA, Nevada DO - http://dx.doi.org/10.2111/1551-5028(2004)057[0574:VCAYOG]2.0.CO;2 ER - TY - JOUR T1 - Assessing land cover performance in Senegal, West Africa using 1-km integrated NDVI and local variance analysis AN - 17295279; 6054621 AB - The researchers calculated seasonal integrated normalized difference vegetation index (NDVI) for each of 7 years using a time-series of 1-km data from the Advanced Very High Resolution Radiometer (AVHRR) (1992-93, 1995) and SPOT Vegetation (1998-2001) sensors. We used a local variance technique to identify each pixel as normal or either positively or negatively anomalous when compared to its surroundings. We then summarized the number of years that a given pixel was identified as an anomaly. The resulting anomaly maps were analysed using Landsat TM imagery and extensive ground knowledge to assess the results. This technique identified anomalies that can be linked to numerous anthropogenic impacts including agricultural and urban expansion, maintenance of protected areas and increased fallow. Local variance analysis is a reliable method for assessing vegetation degradation resulting from human pressures or increased land productivity from natural resource management practices. JF - Journal of Arid Environments AU - Budde, ME AU - Tappan, G AU - Rowland, J AU - Lewis, J AU - Tieszen, L L AD - SAIC, US Geological Survey Earth Resources Observation Systems (EROS) Data Center, 47914 252nd Street, Sioux Falls, SD 57198, USA, mbudde@usgs.gov Y1 - 2004/11// PY - 2004 DA - Nov 2004 SP - 481 EP - 498 VL - 59 IS - 3 SN - 0140-1963, 0140-1963 KW - Sustainability Science Abstracts KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17295279?accountid=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=Journal+of+Arid+Environments&rft.atitle=Assessing+land+cover+performance+in+Senegal%2C+West+Africa+using+1-km+integrated+NDVI+and+local+variance+analysis&rft.au=Budde%2C+ME%3BTappan%2C+G%3BRowland%2C+J%3BLewis%2C+J%3BTieszen%2C+L+L&rft.aulast=Budde&rft.aufirst=ME&rft.date=2004-11-01&rft.volume=59&rft.issue=3&rft.spage=481&rft.isbn=&rft.btitle=&rft.title=Journal+of+Arid+Environments&rft.issn=01401963&rft_id=info:doi/10.1016%2Fj.jaridenv.2004.03.020 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1016/j.jaridenv.2004.03.020 ER - TY - JOUR T1 - Understanding the drivers of agricultural land use change in south-central Senegal AN - 17294029; 6054625 AB - Described is (1) the land use and land cover changes that have taken place in the Department of Velingara, an area of tropical dry woodland in south-central Senegal, (2) the biophysical and socio-economic drivers of those changes with an emphasis on transition to agricultural use, and (3) an assessment of the likelihood of intensification of agriculture in the Department. Results indicate that land devoted to agriculture, either in active cultivation or short-term fallow, is increasing. There is little evidence of agricultural intensification in most of Velingara, with extensification coming largely at the cost of reduction in both upland woodlands and riparian forest. JF - Journal of Arid Environments AU - Wood, E C AU - Tappan, G G AU - Hadj, A AD - SAIC, US Geological Survey Earth Resources Observation Systems (EROS), Data Center, 47914 252nd St., Sioux Falls, SD 57198, USA, woodec@usgs.gov Y1 - 2004/11// PY - 2004 DA - Nov 2004 SP - 565 EP - 582 PB - Elsevier Ltd VL - 59 IS - 3 SN - 0140-1963, 0140-1963 KW - Sustainability Science Abstracts KW - M3 1120:Land UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17294029?accountid=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=Journal+of+Arid+Environments&rft.atitle=Understanding+the+drivers+of+agricultural+land+use+change+in+south-central+Senegal&rft.au=Wood%2C+E+C%3BTappan%2C+G+G%3BHadj%2C+A&rft.aulast=Wood&rft.aufirst=E&rft.date=2004-11-01&rft.volume=59&rft.issue=3&rft.spage=565&rft.isbn=&rft.btitle=&rft.title=Journal+of+Arid+Environments&rft.issn=01401963&rft_id=info:doi/10.1016%2Fj.jaridenv.2004.03.022 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1016/j.jaridenv.2004.03.022 ER - TY - JOUR T1 - Summer Diet Of The Peregrine Falcon In Faunistically Rich And Poor Zones Of Arizona Analyzed With Capture-Recapture Modeling AN - 17116688; 6122509 AB - We collected prey remains from 25 Peregrine Falcon (Falco peregrinus) territories across Arizona from 1977 to 1988 yielding 58 eyrie-years of data. Along with 793 individual birds (107 species and six additional genera), we found seven mammals and nine insects. In addition, two nestling peregrines were consumed. We found a larger dependence upon White-throated Swifts (Aeronautes saxatalis) and birds on migration in northern Arizona, while in southeastern and central Arizona average prey mass was greater and columbiforms formed the largest dietary component. In northern, central, and southeastern Arizona, 74, 66, and 56 avian prey taxa, respectively, were recorded. We used capture-recapture modeling to estimate totals of 111 plus or minus 9.5, 113 plus or minus 10.5, and 86 plus or minus 7.9 (SE) avian taxa taken in these same three areas. These values are counterintuitive inasmuch as the southeast has the richest avifauna. For the entire study area, 156 plus or minus 9.3 avian taxa were estimated to be taken by peregrines.Dieta Estival de Falco peregrinus en Arizona Comparando Zonas Ricas y Pobres en Avifauna Mediante un Modelo de Captura-RecapturaOriginal Abstract: Desde 1977 a 1988 colectamos restos de presas en 58 nidos de Falco peregrinus a traves de Arizona. Conjuntamente con 793 aves individuales (107 especies y seis generos adicionales), encontramos siete mamiferos y nueve insectos. Ademas, fueron consumidos dos pichones de Falco peregrinus. En la zona norte encontramos una mayor dependencia sobre Aeronautes saxatalis y aves en migracion, mientras que en las zonas sureste y central la masa promedio de presa fue mas grande y los columbiformes constituyeron el componente principal de la dieta de Falco peregrinus. En las zonas norte, central y sureste se registraron 74, 66 y 56 taxa de aves presa, respectivamente. Para estimar el numero total de taxa capturados por Falco peregrinus usamos un modelo de captura-recaptura. Los valores calculados fueron 111 plus or minus 9.5, 113 plus or minus 10.5 y 86 plus or minus 7.9 (EE) taxa para las zonas norte, central y sureste, respectivamente. Estos valores no reflejan los que esperabamos, ya que la zona sureste tuvo una avifauna mas rica. Se estimo que 156 plus or minus 9.3 taxa fueron capturados por Falco peregrinus en la totalidad del area de estudio. JF - Condor AU - Ellis, D H AU - Ellis, CH AU - Sabo, BA AU - Rea, A M AU - Dawson, J AU - Fackler, J K AU - Larue, C T AU - Grubb, T G AU - Schmitt, J AU - Smith, D G AU - Kery, M AD - USGS Southwest Biological Science Center, Sonoran Desert Field Station, HC 1 Box 4420, Oracle, AZ 85623 Y1 - 2004/11// PY - 2004 DA - Nov 2004 SP - 873 EP - 886 PB - Cooper Ornithological Society VL - 106 IS - 4 SN - 0010-5422, 0010-5422 KW - Peregrine falcon KW - White-throated swift KW - Ecology Abstracts KW - Aeronautes saxatalis KW - Diets KW - Falco peregrinus KW - USA, Arizona KW - Territory KW - Migration KW - Prey KW - Avifauna KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17116688?accountid=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=Summer+Diet+Of+The+Peregrine+Falcon+In+Faunistically+Rich+And+Poor+Zones+Of+Arizona+Analyzed+With+Capture-Recapture+Modeling&rft.au=Ellis%2C+D+H%3BEllis%2C+CH%3BSabo%2C+BA%3BRea%2C+A+M%3BDawson%2C+J%3BFackler%2C+J+K%3BLarue%2C+C+T%3BGrubb%2C+T+G%3BSchmitt%2C+J%3BSmith%2C+D+G%3BKery%2C+M&rft.aulast=Ellis&rft.aufirst=D&rft.date=2004-11-01&rft.volume=106&rft.issue=4&rft.spage=873&rft.isbn=&rft.btitle=&rft.title=Condor&rft.issn=00105422&rft_id=info:doi/10.1043%2F0010-5422%282004%291062.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0010-5422&volume=106&page=873 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-05-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Diets; Territory; Migration; Prey; Avifauna; Aeronautes saxatalis; Falco peregrinus; USA, Arizona DO - http://dx.doi.org/10.1043/0010-5422(2004)106<0873:SDOTPF>2.0.CO;2 ER - TY - JOUR T1 - On The Estimation Of Dispersal And Movement Of Birds AN - 17113461; 6122496 AB - The estimation of dispersal and movement is important to evolutionary and population ecologists, as well as to wildlife managers. We review statistical methodology available to estimate movement probabilities. We begin with cases where individual birds can be marked and their movements estimated with the use of multisite capture-recapture methods. Movements can be monitored either directly, using telemetry, or by accounting for detection probability when conventional marks are used. When one or more sites are unobservable, telemetry, band recoveries, incidental observations, a closed- or open-population robust design, or partial determinism in movements can be used to estimate movement. When individuals cannot be marked, presence-absence data can be used to model changes in occupancy over time, providing indirect inferences about movement. Where abundance estimates over time are available for multiple sites, potential coupling of their dynamics can be investigated using linear cross-correlation or nonlinear dynamic tools.Sobre la Estimacion de la Dispersion y el Movimiento de las AvesOriginal Abstract: La estimacion de la dispersion y el movimiento es importante para los eco logos evolutivos y de poblaciones, asi como tambien para los encargados del manejo de vida silvestre. Revisamos la metodologia estadistica disponible para estimar probabilidades de movimiento. Empezamos con casos donde aves individuales pueden ser marcadas y sus movimientos estimados con el uso de metodos de captura-repactura para multiples sitios. Los movimientos pueden ser monitoreados ya sea directamente, usando telemetria o teniendo en cuenta las probabilidades de deteccion cuando se usan marcas convencionales. Cuando uno o mas sitios no pueden ser observados, se puede estimar el movimiento usando telemetria, recuperacion de anillos, observaciones circunstanciales, un diseno poblacional robusto cerrado o abierto, o determinismo parcial de los movimientos. Cuando los individuos no pueden ser marcados, se pueden usar datos de presencia-ausencia para modelar los cambios en el tiempo de la ocupacion, brindando inferencias indirectas sobre los movimientos. Cuando las estimaciones de abundancia a lo largo del tiempo estan disponibles para varios sitios, se puede investigar la interrelacion potencial de sus dinamicas usando correlaciones cruzadas lineales o herramientas para dinamica no lineal. JF - Condor AU - Kendall, W L AU - Nichols, J D AD - USGS Patuxent Wildlife Research Center, 12100 Beech Forest Road, Laurel, MD 20708 Y1 - 2004/11// PY - 2004 DA - Nov 2004 SP - 720 EP - 731 PB - Cooper Ornithological Society VL - 106 IS - 4 SN - 0010-5422, 0010-5422 KW - Birds KW - Animal Behavior Abstracts; Ecology Abstracts KW - Aves KW - Statistics KW - Telemetry KW - Movements KW - Abundance KW - Dispersal KW - nonlinear systems KW - Evolution KW - Models KW - D 04671:Birds KW - Y 25656:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17113461?accountid=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=Historical+rock+falls+in+Yosemite+National+Park%2C+California&rft.au=Wieczorek%2C+Gerald+F%3BSnyder%2C+James+B&rft.aulast=Wieczorek&rft.aufirst=Gerald&rft.date=2004-01-01&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://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0010-5422&volume=106&page=720 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-05-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Statistics; Telemetry; Abundance; Movements; nonlinear systems; Dispersal; Evolution; Models; Aves DO - http://dx.doi.org/10.1043/0010-5422(2004)106<0720:OTEODA>2.0.CO;2 ER - TY - JOUR T1 - VOCs in shallow groundwater in new residential/commercial areas of the United States. AN - 67077166; 15543733 AB - The quality of shallow groundwater in urban areas was investigated by sampling 518 monitoring wells between 1996 and 2002 as part of the National Water-Quality Assessment Program of the U.S. Geological Survey. Well networks were installed primarily in new residential/commercial areas less than about 30 years old (17 studies) and in small towns (2 studies) by randomly locating as many as 30 monitoring wells in each study area. The median well depth was 10 m. Based on samples with age-date information, almost all groundwater was recharged after 1950. Samples were analyzed for 53 volatile organic compounds (VOCs). Concentrations ranged from about 0.001 to 1000 microg/L (median 0.04), with less than 1% of the samples exceeding a Maximum Contamination Level or Drinking Water Advisory established by the U.S. Environmental Protection Agency. Using uncensored concentration data, at least one VOC was detected in 88% of the samples, and at least two VOCs were detected in 69% of the samples. Chloroform, toluene, and perchloroethene were the three most frequently detected VOCs. Dissolved oxygen concentration, estimated recharge index, and land-use were significant variables in logistic regression models that explained the presence of the commonly detected VOCs. Dissolved oxygen concentration was the most important explanatory variable in logistic regression models for 6 of the 14 most frequently detected VOCs. Bromodichloromethane, chloroform, and 1,1,1-trichloroethane had a positive correlation with dissolved oxygen; in contrast, dichloroethane, benzene, and toluene had a negative correlation with dissolved oxygen. JF - Environmental science & technology AU - Squillace, Paul J AU - Moran, Michael J AU - Price, Curtis V AD - US Geological Survey, Rapid City, South Dakota 57702, USA. pjsquill@usgs.gov Y1 - 2004/10/15/ PY - 2004 DA - 2004 Oct 15 SP - 5327 EP - 5338 VL - 38 IS - 20 SN - 0013-936X, 0013-936X KW - Ethylene Dichlorides KW - 0 KW - Methyl Ethers KW - Organic Chemicals KW - Water Pollutants, Chemical KW - methyl tert-butyl ether KW - 29I4YB3S89 KW - ethylene dichloride KW - 55163IJI47 KW - Benzene KW - J64922108F KW - Oxygen KW - S88TT14065 KW - Vinyl Chloride KW - WD06X94M2D KW - Index Medicus KW - United States KW - Oxidation-Reduction KW - Environmental Monitoring KW - Cities KW - Urbanization KW - Ethylene Dichlorides -- analysis KW - Benzene -- analysis KW - Logistic Models KW - Water Movements KW - Vinyl Chloride -- analysis KW - Volatilization KW - Oxygen -- analysis KW - Methyl Ethers -- analysis KW - Water Supply -- analysis KW - Water Supply -- standards KW - Water Pollutants, Chemical -- analysis KW - Organic Chemicals -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67077166?accountid=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=Environmental+science+%26+technology&rft.atitle=VOCs+in+shallow+groundwater+in+new+residential%2Fcommercial+areas+of+the+United+States.&rft.au=Squillace%2C+Paul+J%3BMoran%2C+Michael+J%3BPrice%2C+Curtis+V&rft.aulast=Squillace&rft.aufirst=Paul&rft.date=2004-10-15&rft.volume=38&rft.issue=20&rft.spage=5327&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 completed - 2005-08-04 N1 - Date created - 2004-11-16 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Nitrate sources and sinks in Elkhorn Slough, California: Results from long-term continuous in situ nitrate analyzers AN - 968178146; 16467064 AB - Nitrate and water quality parameters (temperature, salinity, dissolved oxygen, turbidity, and depth) were measured continuously with in situ NO sub(3) analyzers and water quality sondes at two sites in Elkhorn Slough in Central California. The Main Channel site near the mouth of Elkhorn Slough was sampled from February to September 2001. Azevedo Pond, a shallow tidal pond bordering agricultural fields further inland, was sampled from December 1999 to July 2001. Nitrate concentrations were recorded hourly while salinity, temperature, depth, oxygen, and turbidity were recorded every 30 min. Nitrate concentrations at the Main Channel site ranged from 5 to 65 mu M. The propagation of an internal wave carrying water from approximately 100 m depth up the Monterey Submarine Canyon and into the lower section of Elkhorn Slough on every rising tide was a major source of nitrate, accounting for 80-90% of the nitrogen load during the dry summer period. Nitrate concentrations in Azevedo Pond ranged from 0-20 mu M during the dry summer months. Nitrate in Azevedo Pond increased to over 450 mu M during a heavy winter precipitation event, and interannual variability driven by differences in precipitation was observed. At both sites, tidal cycling was the dominant forcing, often changing nitrate concentrations by 5-fold or more within a few hours. Water volume flux estimates were combined with observed nitrate concentrations to obtain nitrate fluxes. Nitrate flux calculations indicated a loss of 4 mmol NO sub(3) m super(-2) d super(-1) for the entire Elkhorn Slough and 1 mmol NO sub(3) m super(-2) d super(-1) at Azevedo Pond. These results suggested that the waters of Elkhorn Slough were not a major source of nitrate to Monterey Bay but actually a nitrate sink during the dry season. The limited winter data at the Main Channel site suggest that nitrate was exported from Elkhorn Slough during the wet season. Export of ammonium or dissolved organic nitrogen, which we did not monitor, may balance some or all of the NO sub(3) flux. JF - Estuaries AU - Chapin, Thomas P AU - Caffrey, Jane M AU - Jannasch, Hans W AU - Coletti, Luke J AU - Haskins, John C AU - Johnson, Kenneth S AD - Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, 95039, Moss Landing, California, tchapin@usgs.gov Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 882 EP - 894 PB - Estuarine Research Federation, 490 Chippingwood Dr. Port Republic MD 20676-2140 United States VL - 27 IS - 5 SN - 0160-8347, 0160-8347 KW - Oceanic Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - INE, USA, California, Monterey KW - Nitrates KW - INE, USA, California, Elkhorn Slough KW - USA, California, Elkhorn Slough KW - Temperature KW - Water Quality KW - Sinks KW - Water quality KW - Wave propagation KW - Ponds KW - Dissolved oxygen KW - Channels KW - Salinity KW - Water Depth KW - Dissolved organic nitrogen KW - INE, USA, California, Monterey Bay KW - Fluctuations KW - Seasonal variations KW - Turbidity KW - Ammonium compounds KW - SW 3050:Ultimate disposal of wastes KW - Q5 08502:Methods and instruments KW - O 4060:Pollution - Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/968178146?accountid=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=Nitrate+sources+and+sinks+in+Elkhorn+Slough%2C+California%3A+Results+from+long-term+continuous+in+situ+nitrate+analyzers&rft.au=Chapin%2C+Thomas+P%3BCaffrey%2C+Jane+M%3BJannasch%2C+Hans+W%3BColetti%2C+Luke+J%3BHaskins%2C+John+C%3BJohnson%2C+Kenneth+S&rft.aulast=Chapin&rft.aufirst=Thomas&rft.date=2004-10-01&rft.volume=27&rft.issue=5&rft.spage=882&rft.isbn=&rft.btitle=&rft.title=Estuaries&rft.issn=01608347&rft_id=info:doi/10.1007%2FBF02912049 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-04-01 N1 - Last updated - 2014-05-02 N1 - SubjectsTermNotLitGenreText - Nitrates; Dissolved organic nitrogen; Water quality; Seasonal variations; Wave propagation; Dissolved oxygen; Turbidity; Ponds; Ammonium compounds; Channels; Salinity; Water Depth; Water Quality; Temperature; Sinks; Fluctuations; INE, USA, California, Monterey; USA, California, Elkhorn Slough; INE, USA, California, Elkhorn Slough; INE, USA, California, Monterey Bay DO - http://dx.doi.org/10.1007/BF02912049 ER - TY - JOUR T1 - Sources of nitrate contamination and age of water in large karstic springs of Florida AN - 754882059; 13413053 AB - In response to concerns about the steady increase in nitrate concentrations over the past several decades in many of Florida's first magnitude spring waters (discharge .2.8m super(3)/s), multiple isotopic and other chemical tracers were analyzed in water samples from 12 large springs to assess sources and timescales of nitrate contamination. Nitrate-N concentrations in spring waters ranged from 0.50 to 4.2mg/L, and d super(15)N values of nitrate in spring waters ranged from 2.6 to 7.9per mil. Most d super(15)N values were below 6per mil indicating that inorganic fertilizers were the dominant source of nitrogen in these waters. Apparent ages of groundwater discharging from springs ranged from 5 to about 35years, based on multi-tracer analyses (CFC-12, CFC-113, SF sub(6), super(3)H/ super(3)He) and a piston flow assumption; however, apparent tracer ages generally were not concordant. The most reliable spring-water ages appear to be based on tritium and super(3)He data, because concentrations of CFCs and SF sub(6) in several spring waters were much higher than would be expected from equilibration with modern atmospheric concentrations. Data for all tracers were most consistent with output curves for exponential and binary mixing models that represent mixtures of water in the Upper Floridan aquifer recharged since the early 1960s. Given that groundwater transit times are on the order of decades and are related to the prolonged input of nitrogen from multiple sources to the aquifer, nitrate could persist in groundwater that flows toward springs for several decades due to slow transport of solutes through the aquifer matrix. JF - Environmental Geology AU - Katz, B G AD - U.S. Geological Survey, 2010 Levy Avenue, Tallahassee, Florida , USA, bkatz@usgs.gov Y1 - 2004/10// PY - 2004 DA - October 2004 SP - 689 EP - 706 PB - Springer-Verlag, Heidelberger Platz 3 Berlin 14197 Germany VL - 46 IS - 6-7 SN - 0943-0105, 0943-0105 KW - Pollution Abstracts; Environment Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - Aquifers KW - Aquifer KW - Age KW - USA, Florida KW - Contamination KW - Groundwater Pollution KW - Tracers KW - Solutes KW - Fertilizers KW - Spring Water KW - Chemical pollution KW - Nitrates KW - Tritium KW - Geohydrology KW - Groundwater pollution KW - Nitrogen isotopes KW - Groundwater KW - Groundwater Movement KW - Nitrogen KW - Q2 09263:Topography and morphology KW - AQ 00006:Sewage KW - SW 5040:Data acquisition KW - P 0000:AIR POLLUTION KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754882059?accountid=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+Hydraulic+Engineering&rft.atitle=Computational+modeling+of+sediment+transport+processes&rft.au=Barkdoll%2C+Brian+D%3BDuan%2C+Jennifer+G%3BFan%2C+Shou-shan%3BKlumpp%2C+Cassie+C%3BMcAnnally%2C+Bill%3BPapanicolaou%2C+Thanos%3BScott%2C+Steve%3BWang%2C+Sam+S+Y%3BWu%2C+Weiming%3BYing%2C+Xinya&rft.aulast=Barkdoll&rft.aufirst=Brian&rft.date=2004-07-01&rft.volume=130&rft.issue=7&rft.spage=597&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydraulic+Engineering&rft.issn=07339429&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-09-01 N1 - Last updated - 2016-03-17 N1 - SubjectsTermNotLitGenreText - Solutes; Aquifer; Fertilizers; Nitrates; Contamination; Tritium; Nitrogen isotopes; Aquifers; Tracers; Age; Groundwater pollution; Chemical pollution; Groundwater; Nitrogen; Geohydrology; Spring Water; Groundwater Pollution; Groundwater Movement; USA, Florida DO - http://dx.doi.org/10.1007/s00254-004-1061-9 ER - TY - JOUR T1 - Detection of Clostridium botulinum type C cells in the gastrointestinal tracts of Mozambique Tilapia (Oreochromis mossambicus) by polymerase chain reaction. AN - 67222959; 15650094 AB - We established a method of directly detecting Clostridium botulinum type C cells, while minimizing spore detection, in the intestinal contents of Mozambique tilapia (Oreochromis mossambicus). This technique involved extraction of predominantly cellular DNA from tilapia intestinal tracts and used a polymerase chain reaction assay to detect presence of type C1 toxin gene. We consistently detected C. botulinum type C cells in tilapia gastrointestinal contents at a level of 7.5 x 104 cells per 0.25 g material or 1.9 x 103 cells. This technique is useful for determining prevalence of the potentially active organisms within a given population of fish and may be adapted to other types of C. botulinum and vertebrate populations as well. JF - Journal of wildlife diseases AU - Nol, P AU - Williamson, J L AU - Rocke, T E AU - Yuill, T M AD - USGS National Wildlife Health Center, Madison, Wisconsin 53711, USA. pauline.nol@aphis.usda.gov Y1 - 2004/10// PY - 2004 DA - October 2004 SP - 749 EP - 753 VL - 40 IS - 4 SN - 0090-3558, 0090-3558 KW - DNA, Bacterial KW - 0 KW - Index Medicus KW - Mozambique -- epidemiology KW - Animals KW - Food Chain KW - Polymerase Chain Reaction -- methods KW - Polymerase Chain Reaction -- veterinary KW - Gastrointestinal Tract -- microbiology KW - DNA, Bacterial -- analysis KW - Animals, Wild -- microbiology KW - Prevalence KW - Clostridium botulinum type C -- isolation & purification KW - Tilapia -- microbiology KW - Fish Diseases -- epidemiology KW - Clostridium botulinum type C -- pathogenicity KW - Botulism -- microbiology KW - Fish Diseases -- microbiology KW - Botulism -- epidemiology KW - Botulism -- veterinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67222959?accountid=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=Oecologia&rft.atitle=Phenotypic+variation+and+vulnerability+to+predation+in+juvenile+bluegill+sunfish+%28Lepomis+macrochirus%29&rft.au=Chipps%3BDunbar%2C+JA%3BWahl%2C+D+H&rft.aulast=Chipps&rft.aufirst=&rft.date=2004-01-01&rft.volume=138&rft.issue=1&rft.spage=32&rft.isbn=&rft.btitle=&rft.title=Oecologia&rft.issn=00298549&rft_id=info:doi/10.1007%2Fs00442-003-1396-z LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-06-28 N1 - Date created - 2005-01-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Stable metal isotopes reveal copper accumulation and loss dynamics in the freshwater bivalve Corbicula. AN - 67011722; 15506192 AB - Characterization of uptake and loss dynamics is critical to understanding risks associated with contaminant exposure in aquatic animals. Dynamics are especially important in addressing questions such as why coexisting species in nature accumulate different levels of a contaminant. Here we manipulated copper (Cu) stable isotopic ratios (as an alternative to radioisotopes) to describe for the first time Cu dynamics in a freshwater invertebrate, the bivalve Corbicula fluminea. In the laboratory, Corbicula uptake and loss rate constants were determined from an environmentally realistic waterborne exposure to 65Cu (5.7 microg L(-1)). That is, we spiked deionized water with Cu that was 99.4% 65Cu. Net tracer uptake was detectable after 1 day and strongly evident after 4 days. Thus, short-term exposures necessary to determine uptake dynamics are feasible with stable isotopes of Cu. In Corbicula, 65Cu depuration was biphasic. An unusually low rate constant of loss (0.0038 d(-1)) characterized the slow component of efflux, explaining why Corbicula strongly accumulates copper in nature. We incorporated our estimates of rate constants for dissolved 65Cu uptake and physiological efflux into a bioaccumulation model and showed that dietary exposure to Cu is likely an important bioaccumulation pathway for Corbicula. JF - Environmental science & technology AU - Croteau, Marie-Noële AU - Luoma, Samuel N AU - Topping, Brent R AU - Lopez, Cary B AD - U.S. Geological Survey, MS 465, Menlo Park, California 94025, USA. mcroteau@usgs.gov Y1 - 2004/10/01/ PY - 2004 DA - 2004 Oct 01 SP - 5002 EP - 5009 VL - 38 IS - 19 SN - 0013-936X, 0013-936X KW - Isotopes KW - 0 KW - Water Pollutants KW - Copper KW - 789U1901C5 KW - Index Medicus KW - Mollusca -- physiology KW - Animals KW - Isotopes -- pharmacokinetics KW - Kinetics KW - Copper -- pharmacokinetics KW - Water Pollutants -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67011722?accountid=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=Environmental+science+%26+technology&rft.atitle=Stable+metal+isotopes+reveal+copper+accumulation+and+loss+dynamics+in+the+freshwater+bivalve+Corbicula.&rft.au=Croteau%2C+Marie-No%C3%ABle%3BLuoma%2C+Samuel+N%3BTopping%2C+Brent+R%3BLopez%2C+Cary+B&rft.aulast=Croteau&rft.aufirst=Marie-No%C3%ABle&rft.date=2004-10-01&rft.volume=38&rft.issue=19&rft.spage=5002&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 completed - 2005-01-21 N1 - Date created - 2004-10-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Reproductive status of western mosquitofish inhabiting selenium-contaminated waters in the Grassland water district, Merced county, California. AN - 66904471; 15386130 AB - This study was implemented to determine if western mosquitofish (Gambusia affinis) populations in the Grassland Water District suffer from impaired reproduction because of seleniferous inflows of agricultural drainwater from the Grassland Bypass Project. During June to July 2001, laboratory trials with pregnant female fish collected from two seleniferous treatment sites exposed to selenium-laden drainwater and two nonseleniferous reference sites yielded fry that averaged > 96% survival at birth. In addition, none of the newborn fry exhibited evidence of teratogenesis, a typical consequence of selenium toxicity. Chemical analysis of postpartum female fish and their newborn fry indicated that mosquitofish from seleniferous sites accumulated relatively high body burdens of selenium (3.96 to 17.5 microg selenium/g in postpartum female fish and 5.35 to 29.2 microg selenium/g in their fry), whereas those from nonseleniferous sites contained lower body burdens (0.40 to 2.72 microg selenium/g in postpartum female fish and 0.61 to 4.68 microg selenium/g in their fry). Collectively, these results strongly suggest that mosquitofish inhabiting selenium-contaminated waters are not experiencing adverse reproductive effects at current levels of selenium exposure. Copyright 2004 Springer Science + Business Media, Inc. JF - Archives of environmental contamination and toxicology AU - Saiki, M K AU - Martin, B A AU - May, T W AD - United States Geological Survey, Western Fisheries Research Center, Dixon Duty Station, 6924 Tremont Road, Dixon, California 95620, USA. michael_saiki@usgs.gov Y1 - 2004/10// PY - 2004 DA - October 2004 SP - 363 EP - 369 VL - 47 IS - 3 SN - 0090-4341, 0090-4341 KW - Selenium KW - H6241UJ22B KW - Index Medicus KW - Environmental Monitoring KW - California KW - Agriculture KW - Animals KW - Body Burden KW - Water Supply KW - Tissue Distribution KW - Larva -- chemistry KW - Male KW - Female KW - Pregnancy KW - Selenium -- poisoning KW - Selenium -- pharmacokinetics KW - Reproduction KW - Cyprinodontiformes -- physiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66904471?accountid=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=Reproductive+status+of+western+mosquitofish+inhabiting+selenium-contaminated+waters+in+the+Grassland+water+district%2C+Merced+county%2C+California.&rft.au=Saiki%2C+M+K%3BMartin%2C+B+A%3BMay%2C+T+W&rft.aulast=Saiki&rft.aufirst=M&rft.date=2004-10-01&rft.volume=47&rft.issue=3&rft.spage=363&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 - 2004-10-26 N1 - Date created - 2004-09-23 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Sediment quality in freshwater impoundments at Savannah National Wildlife Refuge. AN - 66903574; 15386124 AB - Freshwater impoundments at Savannah National Wildlife Refuge (NWR), South Carolina, provide an important habitat for wildlife species, but degraded sediment quality in the Savannah River downstream of the discharge from two impoundments have caused concern about potential contaminant problems within the impoundments. The quality of sediments from five impoundments (impoundments no. 1, 2, 6, 7, and 17) on the NWR was evaluated using physical and chemical characterization, contaminant concentrations (metals, organochlorine pesticides, polychlorinated biphenyls, and polycyclic aromatic hydrocarbons), and toxicity testing. Survival of Hyalella azteca (freshwater amphipod) exposed for 28 days to solid-phase sediments was not significantly different from controls, but growth was significantly decreased at several sites. Survival in 96-hour exposures to sediment pore water was significantly decreased at most sites. Factors contributing to the toxic responses were low pH (3.7 to 4.1), ammonia (20 mg/L), and increased concentrations of cations in the pore water. The excess of simultaneously extracted metals over the acid volatile sulfides in the sediments was also typical of sites displaying decreased sediment quality. Elemental concentrations in pore water were negatively correlated with pH, and the highest concentrations were observed in impoundment no. 7. The acidic nature of the sediment in this impoundment was exacerbated by recent draining, burning, and disking, which allowed oxidation of the previously anoxic wetland sediment. Sediment disturbance and mixing of vegetation into the sediments by disking may also have contributed to the formation of ammonia caused by microbial decomposition of the fragmented organic matter. Contaminants were not detected in sediments from the impoundments, but releases of acidic water with increased levels of sediment cations from the impoundments may have contributed to the degraded sediment conditions previously observed in the river. The practice of dewatering sediments for vegetation control may exacerbate the acidification of vulnerable sediments within impoundments of this NWR. Copyright 2004 Springer Science + Business Media, Inc. JF - Archives of environmental contamination and toxicology AU - Winger, P V AU - Lasier, P J AD - United States Geological Survey Patuxent Wildlife Research Center, Warnell School of Forest Resources, University of Georgia, Athens, Georgia 30602, USA. winger@usgs.gov Y1 - 2004/10// PY - 2004 DA - October 2004 SP - 304 EP - 313 VL - 47 IS - 3 SN - 0090-4341, 0090-4341 KW - Water Pollutants KW - 0 KW - Index Medicus KW - Environmental Monitoring KW - Ecosystem KW - Animals KW - Amphipoda KW - Lethal Dose 50 KW - Georgia KW - Conservation of Natural Resources KW - Water Pollutants -- toxicity KW - Geologic Sediments -- chemistry KW - Water Pollutants -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66903574?accountid=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=Sediment+quality+in+freshwater+impoundments+at+Savannah+National+Wildlife+Refuge.&rft.au=Winger%2C+P+V%3BLasier%2C+P+J&rft.aulast=Winger&rft.aufirst=P&rft.date=2004-10-01&rft.volume=47&rft.issue=3&rft.spage=304&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 - 2004-10-26 N1 - Date created - 2004-09-23 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Fishing for Lobsters Indirectly Increases Epidemics in Sea Urchins AN - 20189868; 6058615 AB - Two ecological paradigms, the trophic cascade and the host-density threshold in disease, interact in the kelp-forest ecosystem to structure the community. To investigate what happens when a trophic cascade pushes a host population over a host-threshold density, I analyzed a 20-year data set of kelp forest communities at 16 sites in the region of the Channel Islands National Park, California, USA. Historically, lobsters, and perhaps other predators, kept urchin populations at low levels and kelp forests developed a community-level trophic cascade. In geographic areas where the main predators on urchins were fished, urchin populations increased to the extent that they overgrazed algae and starvation eventually limited urchin-population growth. Despite the limitation of urchin population size by food availability, urchin densities, at times, well exceeded the host-density threshold for epidemics. An urchin-specific bacterial disease entered the region after 1992 and acted as a density-dependent mortality source. Dense populations were more likely to experience epidemics and suffer higher mortality. Disease did not reduce the urchin population at a site to the density that predators previously did. Therefore, disease did not fully replace predators in the trophic cascade. These results indicate how fishing top predators can indirectly favor disease transmission in prey populations. JF - Ecological Applications AU - Lafferty, K D AD - USGS Western Ecological Research Center, c/o Marine Science Institute, University of California, Santa Barbara, California 93106, USA Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 1566 EP - 1573 PB - Ecological Society of America VL - 14 IS - 5 SN - 1051-0761, 1051-0761 KW - American lobster KW - Heart urchins KW - Sand dollars KW - Sea urchins KW - lobsters KW - Microbiology Abstracts B: Bacteriology; Microbiology Abstracts C: Algology, Mycology & Protozoology; ASFA 1: Biological Sciences & Living Resources; Sustainability Science Abstracts; Ecology Abstracts KW - Food organisms KW - INE, USA, California, Channel Is. KW - National parks KW - Population density KW - Forests KW - Predators KW - Food availability KW - Trophic relationships KW - Kelps KW - Disease transmission KW - Fishing KW - Islands KW - Trophic structure KW - Threshold KW - USA, California KW - Diseases KW - Lobster fisheries KW - Homarus americanus KW - Marine crustaceans KW - Prey KW - Algae KW - Starvation KW - Marine KW - Mortality KW - Data processing KW - Epidemics KW - Density KW - Community composition KW - Echinoidea KW - USA, California, Channel Is. KW - Mortality causes KW - D 04700:Management KW - M3 1140:Biodiversity KW - Q1 08482:Ecosystems and energetics KW - J 02320:Cell Biology KW - K 03420:Plant Diseases UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20189868?accountid=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=Ecological+Applications&rft.atitle=Fishing+for+Lobsters+Indirectly+Increases+Epidemics+in+Sea+Urchins&rft.au=Lafferty%2C+K+D&rft.aulast=Lafferty&rft.aufirst=K&rft.date=2004-10-01&rft.volume=14&rft.issue=5&rft.spage=1566&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 - 2005-03-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Food organisms; Community composition; Epidemics; Trophic structure; Population density; Lobster fisheries; Kelps; Marine crustaceans; Mortality causes; Disease transmission; Starvation; Mortality; Data processing; Density; National parks; Forests; Food availability; Predators; Trophic relationships; Fishing; Islands; Threshold; Diseases; Prey; Algae; Echinoidea; Homarus americanus; INE, USA, California, Channel Is.; USA, California; USA, California, Channel Is.; Marine ER - TY - JOUR T1 - Vulnerability of Drinking-Water Wells in La Crosse, Wisconsin, to Enteric- Virus Contamination from Surface Water Contributions AN - 19768747; 6040281 AB - Human enteric viruses can contaminate municipal drinking-water wells, but few studies have examined the routes by which viruses enter these wells. In the present study, the objective was to monitor the municipal wells of La Crosse, Wisconsin, for enteric viruses and determine whether the amount of Mississippi River water infiltrating the wells was related to the frequency of virus detection. From March 2001 to February 2002, one river water site and four wells predicted by hydrogeological modeling to have variable degrees of surface water contributions were sampled monthly for enteric viruses, microbial indicators of sanitary quality, and oxygen and hydrogen isotopes. super(18)O/ super(16)O and super(2)H/ super(1)H ratios were used to determine the level of surface water contributions. All samples were collected prior to chlorination at the wellhead. By reverse transcription-PCR (RT-PCR), 24 of 48 municipal well water samples (50%) were positive for enteric viruses, including enteroviruses, rotavirus, hepatitis A virus (HAV), and noroviruses. Of 12 river water samples, 10 (83%) were virus positive by RT-PCR. Viable enteroviruses were not detected by cell culture in the well samples, although three well samples were positive for culturable HAV. Enteroviruses detected in the wells by RT-PCR were identified as several serotypes of echoviruses and group A and group B coxsackieviruses. None of the well water samples was positive for indicators of sanitary quality, namely male-specific and somatic coliphages, total coliform bacteria, Escherichia coli, and fecal enterococci. Contrary to expectations, viruses were found in all wells regardless of the level of surface water contributions. This result suggests that there were other unidentified sources, in addition to surface water, responsible for the contamination. JF - Applied and Environmental Microbiology AU - Borchardt, Mark A AU - Haas, Nathaniel L AU - Hunt, Randall J AD - Marshfield Clinic Research Foundation, Marshfield. Department of Microbiology, University of Wisconsin-La Crosse, La Crosse. the United States Geological Survey, Middleton, Wisconsin Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 5937 EP - 5946 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA, [URL:http://www.asm.org/] VL - 70 IS - 10 SN - 0099-2240, 0099-2240 KW - Pollution Abstracts; Microbiology Abstracts B: Bacteriology; Water Resources Abstracts; Virology & AIDS Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Aqualine Abstracts KW - Bacteria KW - North America, Mississippi R. KW - Surface water KW - Wells KW - Escherichia coli KW - Water wells KW - V 22123:Epidemiology KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - A 01108:Other water systems KW - AQ 00002:Water Quality KW - J 02430:Symbiosis, Antibiosis & Phages UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19768747?accountid=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+and+Environmental+Microbiology&rft.atitle=Vulnerability+of+Drinking-Water+Wells+in+La+Crosse%2C+Wisconsin%2C+to+Enteric-+Virus+Contamination+from+Surface+Water+Contributions&rft.au=Borchardt%2C+Mark+A%3BHaas%2C+Nathaniel+L%3BHunt%2C+Randall+J&rft.aulast=Borchardt&rft.aufirst=Mark&rft.date=2004-10-01&rft.volume=70&rft.issue=10&rft.spage=5937&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 - 2005-01-01 N1 - Last updated - 2014-02-11 N1 - SubjectsTermNotLitGenreText - Surface water; Water wells; Wells; Escherichia coli; North America, Mississippi R. ER - TY - JOUR T1 - Field Immobilization of Raccoons (Procyon lotor) with Telazol and Xylazine AN - 19768567; 6133462 AB - The effectiveness of tiletamine plus zolazepam (Telazol) and xylazine was evaluated as an immobilizing combination for raccoons (Procyon lotor). Fifteen raccoons were injected intramuscularly with a 3:2 mixture of Telazol (3.2+/-0.6 mg/kg [mean+/-SD]) and xylazine (2.1+/-0.4 mg/kg) at Pictured Rocks National Lakeshore, Michigan, USA, during May-October, 2001-03. Mean induction time was 4.8+/-3.8 min; mean recovery time was 128.5+/-48.4 min. No linear relationships were found between the amount (mg/kg) of Telazol-xylazine injected and induction (r super(2)=0.06, P=0.40) or recovery times (r super(2)=0.01, P=0.78). Mean heart rate, respiratory rate, and body temperature declined through 20 min after induction (P<0.05). No mortality occurred and no short- term adverse effects were observed in recaptured individuals. I conclude that a 3:2 mixture of Telazol-xylazine is a safe and effective immobilizing agent for raccoons when conducting nonsurgical field procedures. Immobilizing raccoons with Telazol at 3 mg/kg and xylazine at 2 mg/kg should provide up to 60 min of handling time and usually allow full recovery in about 120 min. JF - Journal of Wildlife Diseases AU - Belant, Jerrold L AD - National Park Service, Pictured Rocks Science Center, Box 40, Munising, Michigan 49862, USA (E-mail:, jerry_belantnps.gov Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 787 EP - 790 PB - Allen Press, Inc., 810 East Tenth St. Lawrence KS 66044 USA, [mailto:webmaster@allenpress.com], [URL:http://www.allenpress.com] VL - 40 IS - 4 SN - 0090-3558, 0090-3558 KW - Ecology Abstracts KW - Chemical immobilization KW - field study KW - Procyon lotor KW - raccoon KW - Telazol KW - tiletamine KW - xylazine KW - zolazepam KW - Mortality KW - Body temperature KW - Respiration KW - Heart rate KW - Immobilization KW - Side effects KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19768567?accountid=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+Diseases&rft.atitle=Field+Immobilization+of+Raccoons+%28Procyon+lotor%29+with+Telazol+and+Xylazine&rft.au=Belant%2C+Jerrold+L&rft.aulast=Belant&rft.aufirst=Jerrold&rft.date=2004-10-01&rft.volume=40&rft.issue=4&rft.spage=787&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 revised - 2009-05-01 N1 - Last updated - 2015-03-30 N1 - SubjectsTermNotLitGenreText - Mortality; Body temperature; Respiration; Heart rate; xylazine; Side effects; Immobilization; Procyon lotor ER - TY - JOUR T1 - Associations Between Causal Agents of the Beech Bark Disease Complex [Cryptococcus fagisuga (Homoptera: Cryptococcidae) and Nectria spp.] in the Great Smoky Mountains National Park AN - 19619597; 8693838 AB - American beech, Fagus grandifolia Ehrhart, is currently threatened by the insect-mediated disease complex known as beech bark disease. The organisms (beech scale, Cryptococcus fagisuga Lindinger, and two pathogenic fungi, Nectria galligena Bresadola and Nectria coccinea variety faginata Lohman, Watson, and Ayers) associated with beech bark disease were assessed using a qualitative rating system and correlated with other biotic and abiotic factors in 10 permanent plots in the Great Smoky Mountains National Park from spring 1994 through spring 1997. Tree mortality, as well as the presence of another scale species [Xylococculus betulae (Pergande)], also were documented and analyzed. During this study, incidence of C. fagisuga and overall tree mortality increased (55.6-87.9 and 16.0-26.8%, respectively). A forward stepwise logistic regression model selected average overall ratings of C. fagisuga, sum of presence of X. betulae, average presence of. X. betulae, average overall ratings of Nectria spp., maximum presence of X. betulae, sum of south ratings of C. fagisuga, average south ratings of C. fagisuga, and diameter at breast height (dbh) of the tree as significant variables that best explained mortality of American beech. Pearson correlation analysis showed significant associations between ratings of Nectria spp. and C. fagisuga from both the previous season and previous year during fall 1996 and spring 1997. Moderate correlations between elevation, as well as aspect, and north, south, and overall ratings of C. fagisuga from fall 1995 to spring 1997 were documented. The significant association between presence of C. fagisuga and infection by Nectria spp. suggests that control of C. fagisuga could decrease occurrence and slow the spread of beech bark disease. Unless appropriate control and/or management of the disease complex is identified and implemented, mortality of American beech is expected to increase throughout most areas in the Great Smoky Mountains. JF - Environmental Entomology AU - Wiggins, Gregory J AU - Grant, Jerome F AU - Windham, Mark T AU - Vance, Robert A AU - Rutherford, Brenda AU - Klein, Robert AU - Johnson, Kristine AU - Taylor, Glenn AD - National Park Service, Great Smoky Mountains National Park, 107 Park Headquarters Rd., Gatlinburg, TN 37738, wiggybug@utk.edu Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 1274 EP - 1281 PB - Entomological Society of America, 9301 Annapolis Rd. VL - 33 IS - 5 SN - 0046-225X, 0046-225X KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Entomology Abstracts; Ecology Abstracts KW - beech scale KW - Cryptococcus fagisuga KW - beech bark disease KW - Nectria KW - epidemiology KW - Mortality KW - Beech bark disease KW - Trees KW - Fungi KW - National parks KW - Correlation analysis KW - Infection KW - Models KW - Mountains KW - Nectria galligena KW - Regression analysis KW - Homoptera KW - Fagus grandifolia KW - Abiotic factors KW - Z 05300:General KW - D 04040:Ecosystem and Ecology Studies KW - K 03420:Plant Diseases UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19619597?accountid=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+Entomology&rft.atitle=Associations+Between+Causal+Agents+of+the+Beech+Bark+Disease+Complex+%5BCryptococcus+fagisuga+%28Homoptera%3A+Cryptococcidae%29+and+Nectria+spp.%5D+in+the+Great+Smoky+Mountains+National+Park&rft.au=Wiggins%2C+Gregory+J%3BGrant%2C+Jerome+F%3BWindham%2C+Mark+T%3BVance%2C+Robert+A%3BRutherford%2C+Brenda%3BKlein%2C+Robert%3BJohnson%2C+Kristine%3BTaylor%2C+Glenn&rft.aulast=Wiggins&rft.aufirst=Gregory&rft.date=2004-10-01&rft.volume=33&rft.issue=5&rft.spage=1274&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/10.1603%2F0046-225X%282004%290332.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-12-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Mountains; Mortality; Beech bark disease; Trees; Fungi; Regression analysis; National parks; Correlation analysis; Infection; Models; Abiotic factors; Nectria; Cryptococcus fagisuga; Nectria galligena; Homoptera; Fagus grandifolia DO - http://dx.doi.org/10.1603/0046-225X(2004)033[1274:ABCAOT]2.0.CO;2 ER - TY - JOUR T1 - Effects of Natural Forest Fragmentation on a Hawaiian Spider Community AN - 19554736; 8693840 AB - The kipuka system, a network of forest fragments surrounded by lava flows on the island of Hawaii, offers an opportunity to study the natural, long-term fragmentation of a native ecosystem. We examined the impacts of habitat edges upon the community structure of nocturnally active native spiders, primarily in the genus Tetragnatha. We measured plant and spider species distributions across the edges of four small fragments and one large continuously forested area that were surrounded by a lava flow in 1855. Results indicated that an approximately 20 m edge ecotone surrounds core forest habitat. Spider community structure changed across the edge, with a decrease in total species richness and diversity at the forest/lava boundary, and a change in the dominant taxon from native Tetragnatha (Tetragnathidae) to native Cyclosa (Araneidae). Severe habitat restrictions were found for some spider species. In addition, nearly all of the spiders captured were endemic species, and the few introduced species were limited to the younger and more open lava flows. Our results suggest that species responses to edges can vary, and that core habitat specialists may decline in fragmented conditions. JF - Environmental Entomology AU - Vandergast, Amy G AU - Gillespie, Rosemary G AD - Department of Environmental Science, Policy and Management, Division of Insect Biology, University of California, Berkeley, 201 Wellman Hall, 3112, Berkeley, CA 94720-3112, avandergast@usgs.gov Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 1296 EP - 1305 PB - Entomological Society of America, 9301 Annapolis Rd. VL - 33 IS - 5 SN - 0046-225X, 0046-225X KW - Entomology Abstracts; Ecology Abstracts KW - edge effects KW - lava flows KW - Tetragnatha KW - Cyclosa KW - Hawaii KW - Tetragnathidae KW - Forests KW - Habitat KW - Habitat fragmentation KW - Ecotones KW - Araneidae KW - Endemic species KW - Islands KW - Community structure KW - Boundaries KW - Araneae KW - Species richness KW - Z 05340:Ecology and Behavior KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19554736?accountid=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+Entomology&rft.atitle=Effects+of+Natural+Forest+Fragmentation+on+a+Hawaiian+Spider+Community&rft.au=Vandergast%2C+Amy+G%3BGillespie%2C+Rosemary+G&rft.aulast=Vandergast&rft.aufirst=Amy&rft.date=2004-10-01&rft.volume=33&rft.issue=5&rft.spage=1296&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/10.1603%2F0046-225X%282004%290332.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-12-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Endemic species; Islands; Community structure; Boundaries; Forests; Habitat; Ecotones; Habitat fragmentation; Species richness; Tetragnatha; Araneidae; Cyclosa; Tetragnathidae; Araneae DO - http://dx.doi.org/10.1603/0046-225X(2004)033[1296:EONFFO]2.0.CO;2 ER - TY - JOUR T1 - Woodland Type and Spatial Distribution of Nymphal Ixodes scapularis (Acari: Ixodidae) AN - 19554690; 8693837 AB - Spatial distribution patterns of black-legged ticks, Ixodes scapularis, in deciduous and coniferous woodlands were studied by sampling ticks in different woodland types and at sites from which deer had been excluded and by quantifying movement patterns of tick host animals (mammals and birds) at the Lighthouse Tract, Fire Island, NY, from 1994 to 2000. Densities of nymphal ticks were greater in deciduous than coniferous woods in 3 of 7 yr. Only engorged ticks survived the winter, and overwintering survival of engorged larvae in experimental enclosures did not differ between deciduous and coniferous woods. Nymphs were not always most abundant in the same forest type as they had been as larvae, and the habitat shift between life stages differed in direction in different years. Therefore, forest type by itself did not account for tick distribution patterns. Nymphal densities were lower where deer had been excluded compared with areas with deer present for 3 yr after exclusion, suggesting that movement patterns of vertebrate hosts influenced tick distribution, but nymphal densities increased dramatically in one of the enclosures in the fourth year. Therefore, movements of ticks on animal hosts apparently contribute substantially to tick spatial distribution among woodland types, but the factor(s) that determine spatial distribution of nymphal I. scapularis shift from year to year. JF - Environmental Entomology AU - Ginsberg, Howard S AU - Zhioua, Elyes AU - Mitra, Shaibal AU - Fischer, James AU - Buckley, P A AU - Verret, Frank AU - Underwood, HBrian AU - Buckley, Francine G AD - USGS Patuxent Wildlife Research Center, howard_ginsberg@usgs.gov Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 1266 EP - 1273 PB - Entomological Society of America, 9301 Annapolis Rd. VL - 33 IS - 5 SN - 0046-225X, 0046-225X KW - Entomology Abstracts; Ecology Abstracts; Animal Behavior Abstracts KW - Ixodes scapularis KW - spatial distribution KW - habitat distribution KW - survival KW - Fires KW - Spatial distribution KW - Overwintering KW - Ixodidae KW - Forests KW - Survival KW - Developmental stages KW - Habitat KW - Islands KW - Sampling KW - Acari KW - Y 25150:General/Miscellaneous KW - Z 05340:Ecology and Behavior KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19554690?accountid=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+Entomology&rft.atitle=Woodland+Type+and+Spatial+Distribution+of+Nymphal+Ixodes+scapularis+%28Acari%3A+Ixodidae%29&rft.au=Ginsberg%2C+Howard+S%3BZhioua%2C+Elyes%3BMitra%2C+Shaibal%3BFischer%2C+James%3BBuckley%2C+P+A%3BVerret%2C+Frank%3BUnderwood%2C+HBrian%3BBuckley%2C+Francine+G&rft.aulast=Ginsberg&rft.aufirst=Howard&rft.date=2004-10-01&rft.volume=33&rft.issue=5&rft.spage=1266&rft.isbn=&rft.btitle=&rft.title=Environmental+Entomology&rft.issn=0046225X&rft_id=info:doi/10.1603%2F0046-225X%282004%290332.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-12-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Fires; Islands; Spatial distribution; Overwintering; Developmental stages; Survival; Forests; Sampling; Habitat; Ixodidae; Ixodes scapularis; Acari DO - http://dx.doi.org/10.1603/0046-225X(2004)033[1266:WTASDO]2.0.CO;2 ER - TY - JOUR T1 - Sorption of super(99m)Tc radiopharmaceutical compounds by soils AN - 19517907; 6058455 AB - Study of the sorption of super(99m)Tc radiopharmaceutical compounds by soils has assessed the fate of these compounds in the event of a surface spill and examined the potential of these compounds as hydrologic tracers. Sorption from deionized water, filtered Missouri River water, and artificial seawater by five surface soils was investigated. For all water types, the Tc radiopharmaceutical compounds showed greater sorption than the uncomplexed pertechnetate. The most lipophilic complexes showed the highest sorption on soils. JF - Health Physics AU - Jurisson, S AU - Gawenis, J AU - Landa, E R AD - U.S. Geological Survey, 430 National Center, Reston, VA 20192, USA, erlanda@usgs.gov Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 423 EP - 428 VL - 87 IS - 4 SN - 0017-9078, 0017-9078 KW - Biotechnology and Bioengineering Abstracts; Pollution Abstracts KW - Rivers KW - Sorption KW - USA, Missouri R. KW - Seawater KW - Lipophilic KW - Soil KW - Tracers KW - Technetium KW - Marine environment KW - Groundwater KW - P 2000:FRESHWATER POLLUTION KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19517907?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+Physics&rft.atitle=Sorption+of+super%2899m%29Tc+radiopharmaceutical+compounds+by+soils&rft.au=Jurisson%2C+S%3BGawenis%2C+J%3BLanda%2C+E+R&rft.aulast=Jurisson&rft.aufirst=S&rft.date=2004-10-01&rft.volume=87&rft.issue=4&rft.spage=423&rft.isbn=&rft.btitle=&rft.title=Health+Physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-01-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Rivers; Soil; Tracers; Sorption; Marine environment; Lipophilic; Technetium; Seawater; Groundwater; USA, Missouri R. ER - TY - JOUR T1 - Volatile organic compounds in ground water from rural private wells, 1986 to 1999 AN - 19411602; 6088306 AB - The U.S. Geological Survey (USGS) collected or compiled data on volatile organic compounds (VOCs) in samples of untreated ground water from 1,926 rural private wells during 1986 to 1999. At least one VOC was detected in 12 percent of samples from rural private wells. Individual VOCs were not commonly detected with the seven most frequently detected compounds found in only 1 to 5 percent of samples at or above a concentration of 0.2 microgram per liter ( mu g/l). An assessment level of 0.2 mu g/l was selected so that comparisons of detection frequencies between VOCs could be made. The seven most frequently detected VOCs were: trichloromethane, methyl tert-butyl ether, tetrachloroethene, dichlorodifluoromethane, methylbenzene, 1,1,1-trichloroethane, and 1,2-dibromo-3-chloropropane. Solvents and trihalomethanes were the most frequently detected VOC groups in private wells. The distributions of detections of gasoline oxygenates and fumigants seemed to be related to the use patterns of compounds in these groups. Mixtures were a common mode of occurrence of VOCs with one-quarter of all samples with detections including two or more VOCs. The concentrations of most detected VOCs were relatively small and only 1.4 percent of samples had one or more VOC concentrations that exceeded a federally established drinking water standard or health criterion. JF - Journal of the American Water Resources Association AU - Moran, MJ AU - Lapham, W W AU - Rowe, B L AU - Zogorski, J S AD - U.S. Geological Survey, 1608 Mountain View Road, Rapid City, SD 57702, USA, mjmoran@usgs.gov Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 1141 EP - 1157 VL - 40 IS - 5 SN - 1093-474X, 1093-474X KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Gasoline KW - MTBE KW - Organic compounds in water KW - Groundwater Pollution KW - Well Water KW - Rural Areas KW - Water Quality Standards KW - Drinking Water KW - Assessments KW - Solvents KW - Water quality standards KW - USA KW - Trihalomethanes KW - Water wells KW - Groundwater pollution KW - Organic Compounds KW - Organic compounds KW - Drinking water KW - Volatile organic compounds KW - Rural areas KW - M2 556.38:Groundwater Basins (556.38) 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/19411602?accountid=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=Volatile+organic+compounds+in+ground+water+from+rural+private+wells%2C+1986+to+1999&rft.au=Moran%2C+MJ%3BLapham%2C+W+W%3BRowe%2C+B+L%3BZogorski%2C+J+S&rft.aulast=Moran&rft.aufirst=MJ&rft.date=2004-10-01&rft.volume=40&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 - Date revised - 2007-01-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Organic compounds in water; Groundwater pollution; Gasoline; MTBE; Trihalomethanes; Solvents; Water wells; Organic compounds; Drinking water; Water quality standards; Volatile organic compounds; Rural areas; Water Quality Standards; Drinking Water; Assessments; Groundwater Pollution; Organic Compounds; Rural Areas; Well Water; USA ER - TY - JOUR T1 - Community- and landscape-level responses of reptiles and small mammals to feral-horse grazing in the Great Basin AN - 17791757; 6046083 AB - We investigated species- and community-level responses of squamate reptiles and granivorous small mammals to feral-horse grazing in two elevational strata across nine mountain ranges of the western Great Basin, USA. Although mammal species richness did not differ between horse-occupied and horse-removed sites, occupied sites possessed less community completeness (biotic integrity) and 1.1-7.4 times greater deer mice (Peromyscus maniculatus) than removed sites. In opposite fashion, horse-removed sites possessed greater reptile species richness and tended towards greater abundance for seven of nine species, yet unequal species pools across sites dictated that community completeness did not differ statistically between horse-removed and -occupied sites. JF - Journal of Arid Environments AU - Beever, E A AU - Brussard, P F AD - Program in Ecology, Evolution, and Conservation Biology/314, University of Nevada, Reno, NV 89557, USA, erik_beever@usgs.gov Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 271 EP - 297 PB - Elsevier Ltd VL - 59 IS - 2 SN - 0140-1963, 0140-1963 KW - Deer mouse KW - Reptiles KW - Ecology Abstracts KW - Reptilia KW - Mountains KW - USA KW - Grazing KW - Arid environments KW - Abundance KW - Basins KW - Peromyscus maniculatus KW - Species richness KW - D 04672:Mammals KW - D 04670:Reptiles UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17791757?accountid=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=Community-+and+landscape-level+responses+of+reptiles+and+small+mammals+to+feral-horse+grazing+in+the+Great+Basin&rft.au=Beever%2C+E+A%3BBrussard%2C+P+F&rft.aulast=Beever&rft.aufirst=E&rft.date=2004-10-01&rft.volume=59&rft.issue=2&rft.spage=271&rft.isbn=&rft.btitle=&rft.title=Journal+of+Arid+Environments&rft.issn=01401963&rft_id=info:doi/10.1016%2Fj.jaridenv.2003.12.008 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Mountains; Grazing; Abundance; Arid environments; Basins; Species richness; Reptilia; Peromyscus maniculatus; USA DO - http://dx.doi.org/10.1016/j.jaridenv.2003.12.008 ER - TY - JOUR T1 - Stable Hydrogen Isotope Analysis Of Bat Hair As Evidence For Seasonal Molt And Long-Distance Migration AN - 17765297; 6052321 AB - Although hoary bats (Lasiurus cinereus) are presumed to be migratory and capable of long-distance dispersal, traditional marking techniques have failed to provide direct evidence of migratory movements by individuals. We measured the stable hydrogen isotope ratios of bat hair ( delta Dh) and determined how these values relate to stable hydrogen isotope ratios of precipitation ( delta Dp). Our results indicate that the major assumptions of stable isotope migration studies hold true for hoary bats and that the methodology provides a viable means of determining their migratory movements. We present evidence that a single annual molt occurs in L. cinereus prior to migration and that there is a strong relationship between delta Dh and delta Dp during the molt period. This presumably reflects the incorporation of local delta Dp into newly grown hair. Furthermore, we present evidence that individual hoary bats are capable of traveling distances in excess of 2,000 km and that hair is grown at a wide range of latitudes and elevations. Stable hydrogen isotope analysis offers a promising new tool for the study of bat migration. JF - Journal of Mammalogy AU - Cryan, P M AU - Bogan, MA AU - Rye, RO AU - Landis, G P AU - Kester, CL AD - United States Geological Survey, Fort Collins Science Center, 2150 Centre Avenue, Building C, Fort Collins, CO 80526, USA (PMC) Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 995 EP - 1001 PB - American Society of Mammalogists VL - 85 IS - 5 SN - 0022-2372, 0022-2372 KW - Animal Behavior Abstracts; Ecology Abstracts KW - Isotopes KW - Precipitation KW - Hydrogen KW - Molting KW - Hair KW - Migration KW - Dispersal KW - Lasiurus cinereus KW - D 04672:Mammals KW - Y 25657:Mammals (excluding primates) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17765297?accountid=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=Stable+Hydrogen+Isotope+Analysis+Of+Bat+Hair+As+Evidence+For+Seasonal+Molt+And+Long-Distance+Migration&rft.au=Cryan%2C+P+M%3BBogan%2C+MA%3BRye%2C+RO%3BLandis%2C+G+P%3BKester%2C+CL&rft.aulast=Cryan&rft.aufirst=P&rft.date=2004-10-01&rft.volume=85&rft.issue=5&rft.spage=995&rft.isbn=&rft.btitle=&rft.title=Journal+of+Mammalogy&rft.issn=00222372&rft_id=info:doi/10.1043%2F0022-2372%282004%290852.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0022-2372&volume=85&page=995 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lasiurus cinereus; Isotopes; Migration; Hydrogen; Hair; Molting; Dispersal; Precipitation DO - http://dx.doi.org/10.1043/0022-2372(2004)085<0995:SHIAOB>2.0.CO;2 ER - TY - JOUR T1 - Hillslope drainage development with time: a physical experiment AN - 17730610; 6033609 AB - Rainfall simulator experiments were structured to develop erosion rill- channel networks for 9 degree and 5 degree slopes subject to constant rainfall. Quantitative measurements included measurements of rill-channel width, depth, and width-to-depth ratios aggregated over the slope, and measures of the scaling characteristics and space filling tendencies of the networks. Trends in fractal dimensions and width functions with time are presented and compared to previous qualitative descriptions of network evolution. Our results imply that the equilibrium scaling characteristics of rill-channel networks are similar to those of river networks. For a given slope, the fractal dimension increases with time toward an equilibrium value. This equilibrium value is hypothesized to be a function of the effective storm, the initial hillslope-scale slope, and the geologic properties of the substrate. Results also imply that the rate of increase of the fractal dimension of the developing erosion networks (i.e. the rate at which the erosion networks fill space) may increase with increasing hillslope-scale slope. In addition, the growing rill-channel networks possess width functions whose bifurcation characteristics, as described by the power contained in the high wave numbers of the Fourier series fit, remain constant throughout the evolution of the networks. JF - Geomorphology AU - Raff, DA AU - Ramirez, JA AU - Smith, J L AD - United States Bureau of Reclamation, Flood Hydrology Group, Denver, CO 80225, USA, Jorge.Ramirez@ColoState.edu Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 169 EP - 180 PB - Elsevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl/] VL - 62 IS - 3-4 SN - 0169-555X, 0169-555X KW - Water Resources Abstracts KW - Rivers KW - Rainfall Simulators KW - Rainfall-runoff Relationships KW - Drainage KW - Drainage Patterns KW - Storms KW - Channels KW - Fractals KW - Erosion KW - Geomorphology KW - Equilibrium KW - Substrates KW - Networks KW - Waves KW - Slopes KW - Scaling KW - Evolution KW - SW 0870:Erosion and sedimentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17730610?accountid=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=River+Research+and+Applications&rft.atitle=Challenging+the+assumption+of+habitat+limitation%3A+an+example+from+centrarchid+fishes+over+an+intermediate+spatial+scale&rft.au=Gutreuter%2C+Steve&rft.aulast=Gutreuter&rft.aufirst=Steve&rft.date=2004-07-01&rft.volume=20&rft.issue=4&rft.spage=413&rft.isbn=&rft.btitle=&rft.title=River+Research+and+Applications&rft.issn=15351459&rft_id=info:doi/10.1002%2Frra.757 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Networks; Slopes; Geomorphology; Erosion; Equilibrium; Fractals; Scaling; Evolution; Drainage Patterns; Channels; Drainage; Rainfall-runoff Relationships; Waves; Rainfall Simulators; Rivers; Storms; Substrates DO - http://dx.doi.org/10.1016/j.geomorph.2004.02.011 ER - TY - JOUR T1 - Effects of an Introduced Pathogen and Fire Exclusion on the Demography of Sugar Pine AN - 17712863; 6058617 AB - An introduced pathogen, white pine blister rust (Cronartium ribicola), has caused declines in five-needled pines throughout North America. Simultaneously, fire exclusion has resulted in dense stands in many forest types, which may create additional stress for these generally shade-intolerant pines. Fire exclusion also allows fuels to accumulate, and it is unclear how affected populations will respond to the reintroduction of fire. Although white pine blister rust and fire exclusion are widely recognized threats, long-term demographic data that document the effects of these stressors are rare. We present population trends from 2168 individuals over 5-15 years for an affected species, sugar pine (Pinus lambertiana), at several burned and unburned sites in the Sierra Nevada of California. Size-based matrix models indicate that most unburned populations have negative growth rates ( lambda range: 0.82-1.04). The growth rate of most populations was, however, indistinguishable from replacement levels ( lambda = 1.0), implying that, if populations are indeed declining, the progression of any such decline is slow, and longer observations are needed to clearly determine population trends. We found significant differences among population growth rates, primarily due to variation in recruitment rates. Deaths associated with blister rust and stress (i.e., resource competition) were common, suggesting significant roles for both blister rust and fire exclusion in determining population trajectories. Data from 15 prescribed fires showed that the immediate effect of burning was the death of many small trees, with the frequency of mortality returning to pre-fire levels within five years. In spite of a poor prognosis for sugar pine, our results suggest that we have time to apply and refine management strategies to protect this species. JF - Ecological Applications AU - Van Mantgem, PJ AU - Stephenson, N L AU - Keifer, M-B AU - Keeley, J AD - USGS Western Ecological Research Center, Sequoia and Kings Canyon Field Station, HCR 89 Box 4, Three Rivers, California 93271, USA Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 1590 EP - 1602 PB - Ecological Society of America VL - 14 IS - 5 SN - 1051-0761, 1051-0761 KW - White-pine blister rust KW - California sugar pine KW - Sugar pine KW - Ecology Abstracts KW - Growth rate KW - Demography KW - Fires KW - Pinus lambertiana KW - Cronartium ribicola KW - Ecosystem management KW - USA, California KW - Introduced species KW - D 04700:Management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17712863?accountid=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=Effects+of+an+Introduced+Pathogen+and+Fire+Exclusion+on+the+Demography+of+Sugar+Pine&rft.au=Van+Mantgem%2C+PJ%3BStephenson%2C+N+L%3BKeifer%2C+M-B%3BKeeley%2C+J&rft.aulast=Van+Mantgem&rft.aufirst=PJ&rft.date=2004-10-01&rft.volume=14&rft.issue=5&rft.spage=1590&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 - Cronartium ribicola; Pinus lambertiana; USA, California; Introduced species; Fires; Demography; Growth rate; Ecosystem management ER - TY - JOUR T1 - Conservation of microsatellite DNA flanking sequence across 13 Emydid genera assayed with novel bog turtle (Glyptemys muhlenbergii) loci AN - 17621784; 6283489 JF - Conservation Genetics AU - King, T L AU - Julian, SE AD - Leetown Science Center, Leetown Road 11649, Kearneysville, WV, 25430, USA, tim_king@usgs.gov Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 719 EP - 725 PB - Springer-Verlag (Heidelberg), Tiergartenstrasse 17 Heidelberg 69121 Germany, [mailto:subscriptions@springer.de], [URL:http://www.springer.de/] VL - 5 IS - 5 SN - 1566-0621, 1566-0621 KW - Ecology Abstracts; Genetics Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Freshwater KW - G 07375:Reptiles KW - Q1 01443:Population genetics KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17621784?accountid=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+Genetics&rft.atitle=Conservation+of+microsatellite+DNA+flanking+sequence+across+13+Emydid+genera+assayed+with+novel+bog+turtle+%28Glyptemys+muhlenbergii%29+loci&rft.au=King%2C+T+L%3BJulian%2C+SE&rft.aulast=King&rft.aufirst=T&rft.date=2004-10-01&rft.volume=5&rft.issue=5&rft.spage=719&rft.isbn=&rft.btitle=&rft.title=Conservation+Genetics&rft.issn=15660621&rft_id=info:doi/10.1007%2Fs10592-004-1854-0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-10-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Freshwater DO - http://dx.doi.org/10.1007/s10592-004-1854-0 ER - TY - JOUR T1 - Biological Soil Crusts of Sand Dunes in Cape Cod National Seashore, Massachusetts, USA AN - 17620137; 6382069 AB - Biological soil crusts cover hundreds of hectares of sand dunes at the northern tip of Cape Cod National Seashore (Massachusetts, USA). Although the presence of crusts in this habitat has long been recognized, neither the organisms nor their ecological roles have been described. In this study, we report on the microbial community composition of crusts from this region and describe several of their physical and chemical attributes that bear on their environmental role. Microscopic and molecular analyses revealed that eukaryotic green algae belonging to the genera Klebsormidium or Geminella formed the bulk of the material sampled. Phylogenetic reconstruction of partial 16S rDNA sequences obtained from denaturing gradient gel electrophoresis (DGGE) fingerprints also revealed the presence of bacterial populations related to the subclass of the Proteobacteria, the newly described phylum Geothrix/Holophaga/Acidobacterium, the Cytophaga/Flavobacterium/Bacteroides group, and spirochetes. The presence of these crusts had significant effects on the hydric properties and nutrient status of the natural substrate. Although biological soil crusts are known to occur in dune environments around the world, this study enhances our knowledge of their geographic distribution and suggests a potential ecological role for crust communities in this landscape. JF - Microbial Ecology AU - Smith, S M AU - Abed, RMM AU - Gercia-Pichel, F AD - National Park Service Cape Cod National Seashore, 99 Marconi Site Road, Wellfleet, Massachusetts, 02667, USA Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 200 EP - 208 PB - Springer-Verlag, Life Science Journals, 175 Fifth Ave. New York NY 10010 USA, [mailto:orders@springer-ny.com], [URL:http://www.springer-ny.com/] VL - 48 IS - 2 SN - 0095-3628, 0095-3628 KW - Oceanic Abstracts; Microbiology Abstracts B: Bacteriology; Ecology Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - K 03095:Soil KW - O 1070:Ecology/Community Studies KW - K 03009:Algae KW - D 04627:Algae/lichens KW - J 02901:Soil and plants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17620137?accountid=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=Science+of+the+Total+Environment&rft.atitle=Urban+contribution+of+pharmaceuticals+and+other+organic+wastewater+contaminants+to+streams+during+differing+flow+conditions&rft.au=Kolpin%2C+D+W%3BSkopec%2C+M%3BMeyer%2C+M+T%3BFurlong%2C+E+T%3BZaugg%2C+S+D&rft.aulast=Kolpin&rft.aufirst=D&rft.date=2004-07-01&rft.volume=328&rft.issue=1-3&rft.spage=119&rft.isbn=&rft.btitle=&rft.title=Science+of+the+Total+Environment&rft.issn=00489697&rft_id=info:doi/10.1016%2Fj.scitotenv.2004.01.015 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1007/s00248-004-0254-9 ER - TY - JOUR T1 - Contribution of Natural History Collection Data 06217651 Biodiversity Assessment in National Parks TT - Contribucion de Datos de Colecciones de Historia Natural a la Evaluacion de la Biodiversidad en Parques Nacionales AN - 17619405; 6217646 AB - There has been mounting interest in the use of museum and herbaria collections to assess biodiversity; information is often difficult to locate and access, however, and few recommendations are available for effectively using natural history collections. As part of an effort to inventory vertebrates and vascular plants in U.S. national parks, we searched manually and by computer for specimens originating within or adjacent to 14 parks throughout the northeastern United States. We compared the number of specimens located to collection size to determine whether there was any effect on detection rate of specimens. We evaluated the importance of park characteristics (e.g., age since establishment, size, theme [natural vs. cultural]) for influencing the number of specimens found in a collection. We located >31,000 specimens and compiled associated records (hereafter referred to as specimens) from 78 collections; >9000 specimens were park-significant, originating either within park boundaries or in the local township where the park was located. We found >2000 specimens by means of manual searches, which cost $0.001-0.15 per specimen searched and $0.81-151.95 per specimen found. Collection effort appeared relatively uniform between 1890 and 1980, with low periods corresponding to significant sociopolitical events. Detection rates for specimens were inversely related to collection size. Although specimens were most often located in collections within the region of interest, specimens can be found anywhere, particularly in large collections international in scope, suggesting that global searches will be necessary to evaluate historical biodiversity. Park characteristics indicated that more collecting effort occurred within or adjacent to larger parks established for natural resources than in smaller historical sites. Because many institutions have not yet established electronic databases for collections, manual searches can be useful for retrieving specimens. Our results show that thorough, systematic searching of natural history collections for park-significant specimens can provide a historical perspective on biodiversity for park managers.Original Abstract: Ha habido un creciente interes en el uso de colecciones de museos y herbarios para evaluar la biodiversidad, sin embargo, a menudo es dificil localizar y acceder la informacion, y estan disponibles pocas recomendaciones para el uso efectivo de colecciones de historia natural. Como parte de un esfuerzo por inventariar vertebrados y plantas vasculares en parques nacionales de E. U. A., buscamos, manualmente y con computadora, especimenes originarios de o adyacentes a 14 parques en el noreste de Estados Unidos. Comparamos el numero de especimenes localizados con el tamano de la coleccion para determinar si habia un efecto sobre la tasa de deteccion de especimenes. Evaluamos la importancia de las caracteristicas del parque (e.g. tiempo desde el establecimiento, tamano, tematica [natural vs. cultural]) para influir en el numero de especimenes encontrados en una coleccion. Localizamos >31,000 especimenes y compilamos los registros asociados (referidos en lo sucesivo como especimenes) en 78 colecciones, >9,000 especimenes fueron significativos para el parque, originandose dentro de los limites del parque o en el poblado donde se localizaba el parque. Encontramos >2,000 especimenes por medio de busquedas manuales, que costaron $0.001- $0.15 por especimen buscado y $0.81-$151.95 por especimen encontrado. El esfuerzo de colecta parecio relativamente uniforme entre 1890 y 1980 con periodos bajos correspondientes a eventos sociopoliticos significativos. Las tasas de deteccion de especimenes estuvieron inversamente relacionadas al tamano de la coleccion. Aunque los especimenes fueron encontrados mas a menudo en colecciones localizadas en la region de interes, los especimenes pueden ser encontrados en cualquier sitio, particularmente en grandes colecciones de alcance internacional, lo que sugiere que sera necesario hacer busquedas globales para evaluar la biodiversidad historica. Las caracteristicas del parque indicaron que el mayor esfuerzo de colecta ocurrio dentro o adyacente a los parques grandes establecidos para recursos naturales en comparacion con sitios historicos mas pequenos. Las busquedas manuales pueden ser utiles para localizar especimenes porque muchas instituciones aun no han establecido bases de datos electronicas para las colecciones. Nuestros resultados muestran que la busqueda sistematica y minuciosa de especimenes significativos para parques en colecciones de historia natural puede proporcionar una perspectiva historica de la biodiversidad a los administradores de parques. JF - Conservation Biology AU - O'Connell, Allan F AU - Gilbert, Andrew T AU - Hatfield, Jeff S AD - U.S. Geological Survey, Patuxent Wildlife Research Center, 11510 American Holly Drive, Laurel, MD 20708-4016, U.S.A, oconnell@usgs.gov Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 1254 EP - 1261 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ UK, [URL:http://www.blackwellpublishing.com] VL - 18 IS - 5 SN - 0888-8892, 0888-8892 KW - Ecology Abstracts; Sustainability Science Abstracts KW - M3 1010:Issues in Sustainable Development KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17619405?accountid=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=Contribution+of+Natural+History+Collection+Data+06217651+Biodiversity+Assessment+in+National+Parks&rft.au=O%27Connell%2C+Allan+F%3BGilbert%2C+Andrew+T%3BHatfield%2C+Jeff+S&rft.aulast=O%27Connell&rft.aufirst=Allan&rft.date=2004-10-01&rft.volume=18&rft.issue=5&rft.spage=1254&rft.isbn=&rft.btitle=&rft.title=Conservation+Biology&rft.issn=08888892&rft_id=info:doi/10.1111%2Fj.1523-1739.2004.00336.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - SuppNotes - Figures, 3; tables, 1; formulas, 5; references, 30. N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1111/j.1523-1739.2004.00336.x ER - TY - JOUR T1 - Mesohabitat Use of Threatened Hemlock Forests by Breeding Birds of the Delaware River Basin in Northeastern United States AN - 17593926; 6089646 AB - Avian biodiversity may be at risk in eastern parks and forests due to continued expansion of the hemlock woolly adelgid (Adelges tsugae), an exotic homopteran insect native to East Asia. To assess avian biodiversity, mesohabitat relations, and the risk of species loss with declining hemlock forests in Appalachian park lands, 80 randomly distributed fixed-radius plots were established in which territories of breeding birds were estimated on four forest-terrain types (hemlock and hardwood benches and ravines) in the Delaware Water Gap National Recreation Area. Both species richness and number of territories were higher in hardwood than hemlock forest types and in bench than ravine terrain types. Four insectivorous species, Acadian flycatcher (Empidonax virescens), blue-headed vireo (Vireo solitarius), black-throated green warbler (Dendroica virens), and Blackburnian warbler (Dendroica fusca), showed high affinity for hemlock forest type and exhibited significantly greater numbers of territories in hemlock than hardwood sites. These species are hemlock-associated species at risk from continued hemlock decline in the Delaware River valley and similar forests of the mid-Atlantic east slope. Two of these species, the blue-headed vireo and Blackburnian warbler, appeared to specialize on ravine mesohabitats of hemlock stands, the vireo a low-to-mid canopy species, the warbler a mid-to-upper canopy forager. Unchecked expansion of the exotic adelgid and subsequent hemlock decline could negatively impact 3,600 pairs from the park and several million pairs from northeastern United States hemlock forests due to elimination of preferred habitat. JF - Natural Areas Journal AU - Ross, R M AU - Redell, LA AU - Bennett, R M AU - Young, JA AD - U. S. Geological Survey, Leetown Science Center, Northern Appalachian Research Laboratory, 176 Straight Run Road, Wellsboro, PA 16901, USA, rossr@usgs.gov Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 307 EP - 315 VL - 24 IS - 4 SN - 0885-8608, 0885-8608 KW - Acadian flycatcher KW - Black-throated green warbler KW - Blackburnian warbler KW - Blue-headed Vireo KW - Sustainability Science Abstracts; Ecology Abstracts KW - D 04671:Birds KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17593926?accountid=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=Natural+Areas+Journal&rft.atitle=Mesohabitat+Use+of+Threatened+Hemlock+Forests+by+Breeding+Birds+of+the+Delaware+River+Basin+in+Northeastern+United+States&rft.au=Ross%2C+R+M%3BRedell%2C+LA%3BBennett%2C+R+M%3BYoung%2C+JA&rft.aulast=Ross&rft.aufirst=R&rft.date=2004-10-01&rft.volume=24&rft.issue=4&rft.spage=307&rft.isbn=&rft.btitle=&rft.title=Natural+Areas+Journal&rft.issn=08858608&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Pyroclastic Flow Hazard at Volcan Citlaltepetl AN - 17577376; 6039267 AB - Volcan Citlaltepetl (Pico de Orizaba) with an elevation of 5,675 m is the highest volcano in North America. Its most recent catastrophic events involved the production of pyroclastic flows that erupted approximately 4,000, 8,500, and 13,000 years ago. The distribution of mapped deposits from these eruptions gives an approximate guide to the extent of products from potential future eruptions. Because the topography of this volcano is constantly changing computer simulations were made on the present topography using three computer algorithms: energy cone, FLOW2D, and FLOW3D. The Heim Coefficient ( mu ), used as a code parameter for frictional sliding in all our algorithms, is the ratio of the assumed drop in elevation (H) divided by the lateral extent of the mapped deposits (L). The viscosity parameter for the FLOW2D and FLOW3D codes was adjusted so that the paths of the flows mimicked those inferred from the mapped deposits. We modeled two categories of pyroclastic flows modeled for the level I and level II events. Level I pyroclastic flows correspond to small but more frequent block-and-ash flows that remain on the main cone. Level II flows correspond to more widespread flows from catastrophic eruptions with an approximate 4,000-year repose period. We developed hazard maps from simulations based on a National Imagery and Mapping Agency (NIMA) DTED-1 DEM with a 90 m grid and a vertical accuracy of plus or minus 30 m. Because realistic visualization is an important aid to understanding the risks related to volcanic hazards we present the DEM as modeled by FLOW3D. The model shows that the pyroclastic flows extend for much greater distances to the east of the volcano summit where the topographic relief is nearly 4,300 m. This study was used to plot hazard zones for pyroclastic flows in the official hazard map that was published recently. JF - Natural Hazards AU - Sheridan, M F AU - Hubbard, B AU - Carrasco-nunez, G AU - Siebe, C Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 209 EP - 221 PB - Kluwer Academic Publishers VL - 33 IS - 2 SN - 0921-030X, 0921-030X KW - Risk Abstracts KW - North America KW - Eruptions KW - Volcanoes KW - Computer applications KW - Natural disasters KW - Forecasting KW - Mapping KW - R2 23030:Natural hazards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17577376?accountid=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=Natural+Hazards&rft.atitle=Pyroclastic+Flow+Hazard+at+Volcan+Citlaltepetl&rft.au=Sheridan%2C+M+F%3BHubbard%2C+B%3BCarrasco-nunez%2C+G%3BSiebe%2C+C&rft.aulast=Sheridan&rft.aufirst=M&rft.date=2004-10-01&rft.volume=33&rft.issue=2&rft.spage=209&rft.isbn=&rft.btitle=&rft.title=Natural+Hazards&rft.issn=0921030X&rft_id=info:doi/10.1023%2FB%3ANHAZ.0000037028.89829.d1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - North America; Eruptions; Mapping; Volcanoes; Computer applications; Forecasting; Natural disasters DO - http://dx.doi.org/10.1023/B:NHAZ.0000037028.89829.d1 ER - TY - JOUR T1 - Subspecific relationships and genetic structure in the spotted owl AN - 17532066; 6283486 AB - Hierarchical genetic structure was examined in the three geographically-defined subspecies of spotted owl (Strix occidentalis) to define relationships among subspecies and quantify variation within and among regional and local populations. Sequences (522 bp) from domains I and II of the mitochondrial control region were analyzed for 213 individuals from 30 local breeding areas. Results confirmed significant differences between northern spotted owls and the other traditional geographically defined subspecies but did not provide support for subspecific level differences between California and Mexican spotted owls. Divergence times among subspecies estimated with a 936 bp portion of the cytochrome b gene dated Northern and California/Mexican spotted owl divergence time to 115,000-125,000 years ago, whereas California/Mexican spotted owl divergence was estimated at 15,000 years ago. Nested clade analyses indicated an association between California spotted owl and Mexican spotted owl haplotypes, implying historical contact between the two groups. Results also identified a number of individuals geographically classified as northern spotted owls (S. o. caurina) that contained haplotypes identified as California spotted owls (S. o. caurina). Among all northern spotted owls sampled (n=131), 12.9% contained California spotted owl haplotypes. In the Klamath region, which is the contact zone between the two subspecies, 20.3% (n=59) of owls were classified as California spotted owls. The Klamath region is a zone of hybridization and speciation for many other taxa as well. Analyses of population structure indicated gene flow among regions within geographically defined subspecies although there was significant differentiation among northern and southern regions of Mexican spotted owls. Among all areas examined, genetic diversity was not significantly reduced except in California spotted owls where the southern region consists of one haplotype. Our results indicate a stable contact zone between northern and California spotted owls, maintaining distinct subspecific haplotypes within their traditional ranges. This supports recovery efforts based on the traditional subspecies designation for the northern spotted owl. Further, although little variation was found between California and Mexican spotted owls, we suggest they should be managed separately because of current isolation between groups. JF - Conservation Genetics AU - Haig, Susan M AU - Mullins, Thomas D AU - Forsman, Eric D AD - USGS Forest and Rangeland Ecosystem Science Center, 3200 SW Jefferson Way, Corvallis, OR, 97331, USA, susan_haig@usgs.gov Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 683 EP - 705 PB - Springer-Verlag (Heidelberg), Tiergartenstrasse 17 Heidelberg 69121 Germany, [mailto:subscriptions@springer.de], [URL:http://www.springer.de/] VL - 5 IS - 5 SN - 1566-0621, 1566-0621 KW - Ecology Abstracts; Genetics Abstracts KW - Speciation KW - Genetic diversity KW - Mitochondria KW - Cytochrome b KW - Differentiation KW - Breeding KW - Haplotypes KW - Gene flow KW - Strix occidentalis KW - Population structure KW - Conservation genetics KW - Genetic structure KW - G 07270:Ecological genetics KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17532066?accountid=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+Genetics&rft.atitle=Subspecific+relationships+and+genetic+structure+in+the+spotted+owl&rft.au=Haig%2C+Susan+M%3BMullins%2C+Thomas+D%3BForsman%2C+Eric+D&rft.aulast=Haig&rft.aufirst=Susan&rft.date=2004-10-01&rft.volume=5&rft.issue=5&rft.spage=683&rft.isbn=&rft.btitle=&rft.title=Conservation+Genetics&rft.issn=15660621&rft_id=info:doi/10.1007%2Fs10592-004-1864-y LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Strix occidentalis; Haplotypes; Genetic structure; Speciation; Conservation genetics; Breeding; Cytochrome b; Mitochondria; Differentiation; Gene flow; Population structure; Genetic diversity DO - http://dx.doi.org/10.1007/s10592-004-1864-y ER - TY - JOUR T1 - Response of desert biological soil crusts to alterations in precipitation frequency AN - 17507211; 6281995 AB - Biological soil crusts, a community of cyanobacteria, lichens, and mosses that live on the soil surface, occur in deserts throughout the world. They are a critical component of desert ecosystems, as they are important contributors to soil fertility and stability. Future climate scenarios predict alteration of the timing and amount of precipitation in desert environments. Because biological soil crust organisms are only metabolically active when wet, and as soil surfaces dry quickly in deserts during late spring, summer, and early fall, the amount and timing of precipitation is likely to have significant impacts on the physiological functioning of these communities. Using the three dominant soil crust types found in the western United States, we applied three levels of precipitation frequency (50% below-average, average, and 50% above-average) while maintaining average precipitation amount (therefore changing both timing and size of applied events). We measured the impact of these treatments on photosynthetic performance (as indicated by dark-adapted quantum yield and chlorophyll a concentrations), nitrogenase activity, and the ability of these organisms to maintain concentrations of radiation-protective pigments (scytonemin, beta-carotene, echinenone, xanthophylls, and canthaxanthin). Increased precipitation frequency produced little response after 2.5 months exposure during spring (1 April-15 June) or summer (15 June-31 August). In contrast, most of the above variables had a large, negative response after exposure to increased precipitation frequency for 6 months spring-fall (1 April-31 October) treatment. The crusts dominated by the soil lichen Collema, being dark and protruding above the surface, dried the most rapidly, followed by the dark surface cyanobacterial crusts (Nostoc-Scytonema-Microcoleus), and then by the light cyanobacterial crusts (Microcoleus). This order reflected the magnitude of the observed response: crusts dominated by the lichen Collema showed the largest decline in quantum yield, chlorophyll a, and protective pigments; crusts dominated by Nostoc-Scytonema-Microcoleus showed an intermediate decline in these variables; and the crusts dominated by Microcoleus showed the least negative response. Most previous studies of crust response to radiation stress have been short-term laboratory studies, where organisms were watered and kept under moderate temperatures. Such conditions would give crust organisms access to ample carbon to respond to imposed stresses (e.g., production of UV-protective pigments, replacement of degraded chlorophyll). In contrast, our longer-term study showed that under field conditions of high air temperatures and frequent, small precipitation events, crust organisms appear unable to produce protective pigments in response to radiation stress, as they likely dried more quickly than when they received larger, less frequent events. Reduced activity time likely resulted in less carbon available to produce or repair chlorophyll a and/or protective pigments. Our findings may partially explain the global observation that soil lichen cover and richness declines as the frequency of summer rainfall increases. JF - Oecologia AU - Belnap, Jayne AU - Phillips, Susan L AU - Miller, Mark E AD - US Geological Survey, 2290 S. West Resource Blvd., oab, UT 84532, USA, jayne_belnap@usgs.gov Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 306 EP - 316 PB - Springer-Verlag (Berlin), Heidelberger Platz 3 Berlin 14197 Germany, [mailto:subscriptions@springer.de], [URL:http://www.springer.de/] VL - 141 IS - 2 SN - 0029-8549, 0029-8549 KW - Ecology Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Soil crusting KW - Chlorophyll KW - Collema KW - Stress KW - Precipitation KW - Scytonema KW - Carbon KW - Lichens KW - Deserts KW - Pigments KW - Microcoleus KW - Nostoc KW - K 03095:Soil KW - D 04600:Soil UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17507211?accountid=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=Oecologia&rft.atitle=Response+of+desert+biological+soil+crusts+to+alterations+in+precipitation+frequency&rft.au=Belnap%2C+Jayne%3BPhillips%2C+Susan+L%3BMiller%2C+Mark+E&rft.aulast=Belnap&rft.aufirst=Jayne&rft.date=2004-10-01&rft.volume=141&rft.issue=2&rft.spage=306&rft.isbn=&rft.btitle=&rft.title=Oecologia&rft.issn=00298549&rft_id=info:doi/10.1007%2Fs00442-003-1438-6 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Nostoc; Scytonema; Collema; Microcoleus; Precipitation; Soil crusting; Pigments; Deserts; Chlorophyll; Lichens; Stress; Carbon DO - http://dx.doi.org/10.1007/s00442-003-1438-6 ER - TY - JOUR T1 - Identifying storm flow pathways in a rainforest catchment using hydrological and geochemical modelling AN - 17228094; 6930175 AB - The hydrological model TOPMODEL is used to assess the water balance and describe flow paths for the 9*73 ha Lutz Creek Catchment in Central Panama. Monte Carlo results are evaluated based on their fit to the observed hydrograph, catchment-averaged soil moisture and stream chemistry. TOPMODEL, with a direct- flow mechanism that is intended to route water through rapid shallow-soil flow, matched observed chemistry and discharge better than the basic version of TOPMODEL and provided a reasonable fit to observed soil moisture and wet-season discharge at both 15-min and daily time-steps. The improvement of simulations with the implementation of a direct-flow component indicates that a storm flow path not represented in the original version of TOPMODEL plays a primary role in the response of Lutz Creek Catchment. This flow path may be consistent with the active and abundant pipeflow that is observed or delayed saturation overland flow. The "best-accepted" simulations from 1991 to 1997 indicate that around 41% of precipitation becomes direct flow and around 10% is saturation overland flow. Other field observations are needed to constrain evaporative and groundwater losses in the model and to characterize chemical end-members posited in this paper. Published in 2004 by John Wiley & Sons, Ltd. JF - Hydrological Processes AU - Kinner, David A AU - Stallard, Robert F AD - U.S. Geological Survey-WRD, 3215 Marine Street, Boulder, CO 80303, dakinner@usgs.gov Y1 - 2004/10// PY - 2004 DA - October 2004 SP - 2851 EP - 2875 This article is a US Government work and is in the public domain in the USA. Published in 2004 by John Wiley & Sons, Ltd. PB - John Wiley & Sons, Ltd., Baffins Lane Chichester W. Sussex PO19 1UD UK, [mailto:customer@wiley.co.uk] VL - 18 IS - 15 SN - 0885-6087, 0885-6087 KW - Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - tropics KW - hydrology KW - flowpaths KW - TOPMODEL KW - end-member chemical mixing KW - Catchment area KW - Statistical analysis KW - Hydrologic Budget KW - Soil Water KW - Freshwater KW - Streams KW - Storms KW - Storm Water KW - Hydrologic Models KW - Catchment basins KW - Hydrology KW - Hydrographs KW - Overland Flow KW - Modelling KW - Panama KW - Hydrologic analysis KW - Catchment Areas KW - Geochemistry KW - River discharge KW - Flow Discharge KW - Direct Flow KW - Precipitation KW - Saturation KW - Overland flow KW - Water balance KW - Numerical simulations KW - Moisture Content KW - Soil moisture KW - SW 0835:Streamflow and runoff KW - Q2 09171:Dynamics of lakes and rivers KW - M2 556.16:Runoff (556.16) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17228094?accountid=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=Identifying+storm+flow+pathways+in+a+rainforest+catchment+using+hydrological+and+geochemical+modelling&rft.au=Kinner%2C+David+A%3BStallard%2C+Robert+F&rft.aulast=Kinner&rft.aufirst=David&rft.date=2004-10-01&rft.volume=18&rft.issue=15&rft.spage=2851&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=08856087&rft_id=info:doi/10.1002%2Fhyp.1498 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Water balance; Catchment area; Geochemistry; Statistical analysis; River discharge; Hydrology; Storms; Modelling; Hydrologic analysis; Numerical simulations; Catchment basins; TOPMODEL; Precipitation; Soil moisture; Overland flow; Catchment Areas; Flow Discharge; Hydrologic Budget; Direct Flow; Soil Water; Saturation; Streams; Storm Water; Hydrologic Models; Moisture Content; Hydrographs; Overland Flow; Panama; Freshwater DO - http://dx.doi.org/10.1002/hyp.1498 ER - TY - JOUR T1 - Sensitivity to acidification of subalpine ponds and lakes in north-western Colorado AN - 17218936; 6930173 AB - Although acidifying deposition in western North America is lower than in many parts of the world, many high-elevation ecosystems there are extremely sensitive to acidification. Previous studies determined that the Mount Zirkel Wilderness Area (MZWA) has the most acidic snowpack and aquatic ecosystems that are among the most sensitive in the region. In this study, spatial and temporal variability of ponds and lakes in and near the MZWA were examined to determine their sensitivity to acidification and the effects of acidic deposition during and after snowmelt. Within the areas identified as sensitive to acidification based on bedrock types, there was substantial variability in acid-neutralizing capacity (ANC), which was related to differences in hydrological flowpaths that control delivery of weathering products to surface waters. Geological and topographic maps were of limited use in predicting acid sensitivity because their spatial resolution was not fine enough to capture the variability of these attributes for lakes and ponds with small catchment areas. Many of the lakes are sensitive to acidification (summer and autumn ANC < 100 mu eq L super(-1)), but none of them appeared to be threatened immediately by episodic or chronic acidification. In contrast, 22 ponds had minimum ANC < 30 mu eq L super(-1), indicating that they are extremely sensitive to acidic deposition and could be damaged by episodic acidification, although net acidity (ANC < 0) was not measured in any of the ponds during the study. The lowest measured pH value was 5*4, and pH generally remained less than 6*0 throughout early summer in the most sensitive ponds, indicating that biological effects of acidification are possible at levels of atmospheric deposition that occurred during the study. The aquatic chemistry of lakes was dominated by atmospheric deposition and biogeochemical processes in soils and shallow ground water, whereas the aquatic chemistry of ponds was also affected by organic acids and biogeochemical processes in the water column and at the sediment-water interface. These results indicate that conceptual and mechanistic acidification models that have been developed for lakes and streams may be inadequate for predicting acidification in less-understood systems such as ponds. JF - Hydrological Processes AU - Campbell, D H AU - Muths, E AU - Turk, J T AU - Corn, P S AD - U.S. Geological Survey, Denver, Colorado, USA, dhcampbe@usgs.gov Y1 - 2004/10// PY - 2004 DA - October 2004 SP - 2817 EP - 2834 PB - John Wiley & Sons, Ltd., Baffins Lane Chichester W. Sussex PO19 1UD UK, [mailto:customer@wiley.co.uk] VL - 18 IS - 15 SN - 0885-6087, 0885-6087 KW - Meteorological & Geoastrophysical Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - atmospheric deposition KW - lakes KW - ponds KW - acidification KW - Chemistry of ponds KW - Salinity variations KW - Ecosystems KW - Organic acids KW - Surface Water KW - Freshwater KW - Maps KW - Water quality KW - Ponds KW - Soil KW - Lakes KW - Hydrologic Models KW - Acidity KW - pH KW - Abiotic factors KW - Sensitivity KW - Hydrologic analysis KW - Biogeochemistry KW - Catchment Areas KW - USA, Colorado KW - Pollutant deposition KW - Sediment-water interface KW - Atmospheric chemistry KW - Wilderness KW - Sediment-water Interfaces KW - Wilderness Areas KW - Snowpack KW - Catchment area KW - Variability KW - Surface water KW - biological effects KW - Streams KW - spatial distribution KW - Catchment basins KW - Weathering KW - Acidification KW - Bedrock KW - Acid deposition KW - Organic Acids KW - Temporal variations KW - Hydrogen Ion Concentration KW - Snow cover KW - weathering KW - Acids KW - Snowmelt KW - Deposition KW - summer KW - Capacity KW - aquatic ecosystems KW - Q5 08503:Characteristics, behavior and fate KW - SW 0850:Lakes KW - P 2000:FRESHWATER POLLUTION KW - M2 556.11:Water properties (556.11) KW - Q2 09261:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17218936?accountid=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=Sensitivity+to+acidification+of+subalpine+ponds+and+lakes+in+north-western+Colorado&rft.au=Campbell%2C+D+H%3BMuths%2C+E%3BTurk%2C+J+T%3BCorn%2C+P+S&rft.aulast=Campbell&rft.aufirst=D&rft.date=2004-10-01&rft.volume=18&rft.issue=15&rft.spage=2817&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=08856087&rft_id=info:doi/10.1002%2Fhyp.1496 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Catchment area; Lakes; Sediment-water interface; Temporal variations; Biogeochemistry; Atmospheric chemistry; Acidification; Ponds; Abiotic factors; Chemistry of ponds; Salinity variations; Hydrologic analysis; Catchment basins; Weathering; Snow cover; Water quality; Sensitivity; Ecosystems; biological effects; Organic acids; Surface water; weathering; Soil; spatial distribution; Pollutant deposition; Wilderness; summer; Acidity; aquatic ecosystems; pH; Acid deposition; Snowpack; Variability; Organic Acids; Catchment Areas; Hydrogen Ion Concentration; Surface Water; Maps; Streams; Hydrologic Models; Acids; Snowmelt; Sediment-water Interfaces; Deposition; Capacity; Bedrock; Wilderness Areas; USA, Colorado; Freshwater DO - http://dx.doi.org/10.1002/hyp.1496 ER - TY - JOUR T1 - Is predation on waterfowl nests density dependent? - Tests at three spatial scales AN - 16199296; 6402995 AB - We tested whether predation on duck nests (Anas spp.) was density dependent at three spatial scales using artificial and natural nests in the Suisun Marsh, California, USA. At the largest spatial scale, we used 5 years (1998-2002) of data to examine the natural variation in duck nest success and nest densities among 8-16 fields per year, each 5-33 ha in size (n=62 fields). At an intermediate spatial scale, we deployed artificial nests (2000, n=280) within 1-ha plots at three experimental densities (5, 10, and 20 nests ha super(-1)) in a complete randomized block design and examined differences in nest predation. At the smallest spatial scale, we examined nest success in relation to nearest-neighbor fates and distances for artificial (2000, n=280) and natural nests (2000, n=507). We detected no relationship between nest success and the density of natural nests among fields in any year, nor when we pooled data for all years after controlling for year effects. The proportion of artificial nests that survived also did not depend on experimental nest densities within 1-ha plots. Overall, 15.0 plus or minus 12.4%, 15.0 plus or minus 11.0%, and 6.2 plus or minus 4.3% of artificial nests survived the 32-day exposure period in the low, intermediate, and high nest densities, respectively. Additionally, we detected no consistent effect of nearest-neighbor fate or distance on the success of artificial or natural nests. Thus, our results provide no evidence of density-dependent predation on duck nests at any scale of analysis, in contrast to a number of previous studies. Variation among geographical locations in the degree to which predation is density-dependent may reflect the composition of the predator community and the availability of alternate prey. JF - Oikos AU - Ackerman, J T AU - Blackmer, AL AU - Eadie, J M AD - United States Geological Survey, Western Ecological Research Center, One Sheilds Avenue, Univ. of California, Davis, CA 95616, USA, jtackerman@ucdavis.edu Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 128 EP - 140 VL - 107 IS - 1 SN - 0030-1299, 0030-1299 KW - Dabbling ducks KW - ASFA 1: Biological Sciences & Living Resources; Oceanic Abstracts; Ecology Abstracts KW - Food organisms KW - Geographical distribution KW - Predation KW - Anas KW - USA, California, Suisun Marsh KW - Food availability KW - Marshes KW - Nests KW - Predator-prey interactions KW - Interspecific relationships KW - USA, California KW - Aquatic birds KW - Q1 08483:Species interactions: general KW - O 1070:Ecology/Community Studies KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16199296?accountid=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=Is+predation+on+waterfowl+nests+density+dependent%3F+-+Tests+at+three+spatial+scales&rft.au=Ackerman%2C+J+T%3BBlackmer%2C+AL%3BEadie%2C+J+M&rft.aulast=Ackerman&rft.aufirst=J&rft.date=2004-10-01&rft.volume=107&rft.issue=1&rft.spage=128&rft.isbn=&rft.btitle=&rft.title=Oikos&rft.issn=00301299&rft_id=info:doi/10.1111%2Fj.0030-1299.2004.13226.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-12-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Food organisms; Interspecific relationships; Predation; Food availability; Marshes; Aquatic birds; Predator-prey interactions; Geographical distribution; Nests; Anas; USA, California, Suisun Marsh; USA, California DO - http://dx.doi.org/10.1111/j.0030-1299.2004.13226.x ER - TY - JOUR T1 - Genetic Identification of Spotted Owls, Barred Owls, and Their Hybrids: Legal Implications ofHybrid Identity TT - Identificacion Genetica de Strix occidentalis caurina y S. varia y sus Hibridos: Implicaciones Legales de la Identidad Hibrida AN - 16192354; 6217655 AB - Recent population expansion of Barred Owls (Strix varia) into western North America has led to concern that they may compete with and further harm the Northern Spotted Owl (S. occidentalis caurina), which is already listed as threatened under the U.S. Endangered Species Act (ESA). Because they hybridize, there is a legal need under the ESA for forensic identification of both species and their hybrids. We used mitochondrial control-region DNA and amplified fragment-length polymorphism (AFLP) analyses to assess maternal and biparental gene flow in this hybridization process. Mitochondrial DNA sequences (524 base pairs) indicated large divergence between Barred and Spotted Owls (13.9%). Further, the species formed two distinct clades with no signs of previous introgression. Fourteen diagnostic AFLP bands also indicated extensive divergence between the species, including markers differentiating them. Principal coordinate analyses and assignment tests clearly supported this differentiation. We found that hybrids had unique genetic combinations, including AFLP markers from both parental species, and identified known hybrids as well as potential hybrids with unclear taxonomic status. Our analyses corroborated the findings of extensive field studies that most hybrids genetically sampled resulted from crosses between female Barred Owls and male Spotted Owls. These genetic markers make it possible to clearly identify these species as well as hybrids and can now be used for research, conservation, and law enforcement. Several legal avenues may facilitate future conservation of Spotted Owls and other ESA-listed species that hybridize, including the ESA similarity-of-appearance clause (section 4[e]) and the Migratory Bird Treaty Act. The Migratory Bird Treaty Act appears to be the most useful route at this time.Original Abstract: La reciente expansion de la poblacion de Strix varia hacia el oeste de Norte America ha llevado a la preocupacion de que puede competir con y posteriormente danar a S. occidentalis caurina, que esta enlistada como amenazada en el Acta de Especies en Peligro de E. U. (AEP). Debido a que hibridan, por mandato de AEP hay una necesidad legal de la identificacion forense de ambas especies y sus hibridos. Utilizamos analisis de ADN de la region de control mitocondrial y polimorfismo de longitud de fragmento amplificado (PLFA) para evaluar el flujo genico materno y biparental de este proceso de hibridacion. Las secuencias de ADN mitocondrial (524 pares de bases) indicaron una amplia divergencia ente Strix varia y S. occidentalis caurina (13.9%). Mas aun, las especies formaron dos clados diferentes sin signos de introgresion previa. Catorce bandas diagnostico de PLFA tambien indicaron divergencia extensiva entre especies, incluyendo marcadores que diferencian a las especies. Analisis de componentes principales y pruebas de acomodo claramente sustentaron a esta diferenciacion. Encontramos que los hibridos tenian combinaciones geneticas unicas, incluyendo marcadores PLFA de ambas especies parentales e identificaban a hibridos conocidos asi como a los potenciales hibridos con estatus taxonomico incierto. Nuestros analisis corroboraron extensivos estudios de campo que la mayoria de los hibridos muestreados geneticamente resultaron de cruzas entre hembras de Strix varia y machos de S. occidentalis caurina. Estos marcadores geneticos hacen que sea posible identificar claramente a estas especies asi como a sus hibridos y ahora pueden ser utilizados para investigacion, conservacion y aplicacion de la ley. Varias rutas legales pueden facilitar la conservacion futura de S. occidentalis caurina y otras especies enlistadas en AEP que hibridan, incluyendo la clausula de similitud de apariencia de AEP (seccion 4[e]) y el Acta del Tratado de Aves Migratorias. Por el momento, el Acta del Tratado de Aves Migratorias parece ser la ruta mas util. JF - Conservation Biology AU - Haig, Susan M AU - Mullins, Thomas D AU - Forsman, Eric D AU - Trail, Pepper W AU - Wennerberg, Liv AD - U.S. Geological Survey, Forest and Rangeland Ecosystem Science Center, 3200 SW Jefferson Way, Corvallis, OR 97331, U.S.A, susan_haig@usgs.gov Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 1347 EP - 1357 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ UK, [URL:http://www.blackwellpublishing.com] VL - 18 IS - 5 SN - 0888-8892, 0888-8892 KW - Genetics Abstracts; Sustainability Science Abstracts; Ecology Abstracts KW - Strix varia KW - Gene polymorphism KW - Nucleotide sequence KW - Recruitment KW - Mitochondria KW - Differentiation KW - Amplified fragment length polymorphism KW - Mitochondrial DNA KW - Genetic markers KW - Gene flow KW - Forensic science KW - Conservation KW - Endangered species KW - G 07740:Evolution KW - M3 1010:Issues in Sustainable Development KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16192354?accountid=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=Genetic+Identification+of+Spotted+Owls%2C+Barred+Owls%2C+and+Their+Hybrids%3A+Legal+Implications+ofHybrid+Identity&rft.au=Haig%2C+Susan+M%3BMullins%2C+Thomas+D%3BForsman%2C+Eric+D%3BTrail%2C+Pepper+W%3BWennerberg%2C+Liv&rft.aulast=Haig&rft.aufirst=Susan&rft.date=2004-10-01&rft.volume=18&rft.issue=5&rft.spage=1347&rft.isbn=&rft.btitle=&rft.title=Conservation+Biology&rft.issn=08888892&rft_id=info:doi/10.1111%2Fj.1523-1739.2004.00206.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-06-01 N1 - SuppNotes - Figures, 3; tables, 5; formulas, 1; references, 60. N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Differentiation; Mitochondrial DNA; Amplified fragment length polymorphism; Nucleotide sequence; Gene polymorphism; Gene flow; Genetic markers; Recruitment; Forensic science; Endangered species; Mitochondria; Conservation; Strix varia DO - http://dx.doi.org/10.1111/j.1523-1739.2004.00206.x ER - TY - JOUR T1 - Factors that affect molecular weight distribution of Suwannee river fulvic acid as determined by electrospray ionization/mass spectrometry AN - 16180857; 6022068 AB - Effects of methylation, molar response, multiple charging, solvents, and positive and negative ionization on molecular weight distributions of aquatic fulvic acid were investigated by electrospray ionization/mass spectrometry. After preliminary analysis by positive and negative modes, samples and mixtures of standards were derivatized by methylation to minimize ionization sites and reanalyzed. Positive ionization was less effective and produced more complex spectra than negative ionization. Ionization in methanol/water produced greater response than in acetonitrile/water. Molar response varied widely for the selected free acid standards when analyzed individually and in a mixture, but after methylation this range decreased. After methylation, the number average molecular weight of the Suwannee River fulvic acid remained the same while the weight average molecular weight decreased. These differences are probably indicative of disaggregation of large aggregated ions during methylation. Since the weight average molecular weight decreased, it is likely that aggregate formation in the fulvic acid was present prior to derivatization, rather than multiple charging in the mass spectra. JF - Analytica Chimica Acta AU - Rostad, CE AU - Leenheer, JA AD - US Geological Survey, Box 25046, Bldg. 95, MS 408 Denver Federal Center, Denver, CO 80225, USA, cerostad@usgs.gov Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 269 EP - 278 PB - Elsevier Science Ltd., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:usinfo-f@elsevier.com], [URL:http://www.elsevier.nl] VL - 523 IS - 2 SN - 0003-2670, 0003-2670 KW - Water Resources Abstracts; Aqualine Abstracts KW - Fulvic acid KW - Mass spectrometry KW - Electrospray ionization KW - Molecular weight KW - Mass Spectrometry KW - Methanol KW - USA, Florida, Suwannee R. KW - Mass Spectra KW - Weight KW - Distribution KW - Rivers KW - Ions KW - Solvents KW - Aggregates KW - Acids KW - Standards KW - Methylation KW - Ionization KW - Fulvic Acids KW - SW 3010:Identification of pollutants KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16180857?accountid=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=Continental+Shelf+Research&rft.atitle=Wave-+and+tidally-driven+flow+and+sediment+flux+across+a+fringing+coral+reef%3A+Southern+Molokai%2C+Hawaii&rft.au=Storlazzi%2C+C+D%3BOgston%2C+A+S%3BBothner%2C+M+H%3BField%2C+ME%3BPresto%2C+M+K&rft.aulast=Storlazzi&rft.aufirst=C&rft.date=2004-08-01&rft.volume=24&rft.issue=12&rft.spage=1397&rft.isbn=&rft.btitle=&rft.title=Continental+Shelf+Research&rft.issn=02784343&rft_id=info:doi/10.1016%2Fj.csr.2004.02.010 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-01-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Rivers; Mass Spectrometry; Ions; Methanol; Solvents; Aggregates; Weight; Mass Spectra; Acids; Distribution; Standards; Ionization; Methylation; Fulvic Acids; USA, Florida, Suwannee R. DO - http://dx.doi.org/10.1016/j.aca.2004.06.065 ER - TY - JOUR T1 - The mixed value of environmental regulations: do acroporid corals deserve endangered species status? AN - 16178514; 6047240 JF - Marine Pollution Bulletin AU - Shinn, E A AD - United States Geological Survey, St Petersburg, Florida 33701, USA, eshinn@usgs.gov Y1 - 2004/10// PY - 2004 DA - October 2004 SP - 531 EP - 533 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl] VL - 49 IS - 7-8 SN - 0025-326X, 0025-326X KW - coral KW - Water Resources Abstracts; Aqualine Abstracts; Pollution Abstracts; ASFA 1: Biological Sciences & Living Resources; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Marine KW - Policies KW - Acroporidae KW - Rare species KW - Environmental legislation KW - Environmental protection KW - Coral KW - Nature conservation KW - Endangered species KW - Corals KW - Regulations KW - Legislation KW - P 9000:ENVIRONMENTAL ACTION KW - Q1 08381:General KW - O 4090:Conservation and Environmental Protection KW - SW 3030:Effects of pollution KW - AQ 00008:Effects of Pollution KW - Q5 08522:Protective measures and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16178514?accountid=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=Marine+Pollution+Bulletin&rft.atitle=The+mixed+value+of+environmental+regulations%3A+do+acroporid+corals+deserve+endangered+species+status%3F&rft.au=Shinn%2C+E+A&rft.aulast=Shinn&rft.aufirst=E&rft.date=2004-10-01&rft.volume=49&rft.issue=7-8&rft.spage=531&rft.isbn=&rft.btitle=&rft.title=Marine+Pollution+Bulletin&rft.issn=0025326X&rft_id=info:doi/10.1016%2Fj.marpolbul.2004.07.007 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-02-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Policies; Nature conservation; Coral; Rare species; Environmental legislation; Environmental protection; Endangered species; Legislation; Regulations; Corals; Acroporidae; Marine DO - http://dx.doi.org/10.1016/j.marpolbul.2004.07.007 ER - TY - CPAPER T1 - Measuring urban land cover change through multi-temporal imperviousness mapping in Tampa Bay, Florida AN - 39910711; 3872433 AU - Hossain, SMN AU - Yang, L AU - Xian, G Y1 - 2004/09/21/ PY - 2004 DA - 2004 Sep 21 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39910711?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+urban+land+cover+change+through+multi-temporal+imperviousness+mapping+in+Tampa+Bay%2C+Florida&rft.au=Hossain%2C+SMN%3BYang%2C+L%3BXian%2C+G&rft.aulast=Hossain&rft.aufirst=SMN&rft.date=2004-09-21&rft.volume=&rft.issue=&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 & Remote Sensing, 5410 Grosvenor Lane, Suite 210, Bethesda, MD 20814, USA; URL: www.asprs.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - LANDFIRE - A national fire fuels and risks assessment project AN - 39910612; 3871898 AU - Vogelmann, JE AU - Rollins, M AU - Zhu, Z Y1 - 2004/09/21/ PY - 2004 DA - 2004 Sep 21 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39910612?accountid=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=Conspecific+cases+as+alternative+grazing+surfaces+for+larval+Glossosoma+intermedium+%28Trichoptera%3AGlossosomatidae%29&rft.au=Cavanaugh%2C+Jennifer+C%3BHaro%2C+Roger+J%3BJones%2C+Shane+N&rft.aulast=Cavanaugh&rft.aufirst=Jennifer&rft.date=2004-01-01&rft.volume=23&rft.issue=2&rft.spage=297&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 - SuppNotes - Availability: American Society for Photogrammetry & Remote Sensing, 5410 Grosvenor Lane, Suite 210, Bethesda, MD 20814, USA; URL: www.asprs.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Voxels as a representation of multiple-return lidar data AN - 39814956; 3877479 AU - Stoker, J M AU - Gesch, D B AU - Greenlee, S K Y1 - 2004/09/21/ PY - 2004 DA - 2004 Sep 21 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39814956?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Voxels+as+a+representation+of+multiple-return+lidar+data&rft.au=Stoker%2C+J+M%3BGesch%2C+D+B%3BGreenlee%2C+S+K&rft.aulast=Stoker&rft.aufirst=J&rft.date=2004-09-21&rft.volume=&rft.issue=&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 & Remote Sensing, 5410 Grosvenor Lane, Suite 210, Bethesda, MD 20814, USA; URL: www.asprs.org N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Food web pathway determines how selenium affects aquatic ecosystems: a San Francisco Bay case study. AN - 66935465; 15461158 AB - Chemical contaminants disrupt ecosystems, but specific effects may be under-appreciated when poorly known processes such as uptake mechanisms, uptake via diet, food preferences, and food web dynamics are influential. Here we show that a combination of food web structure and the physiology of trace element accumulation explain why some species in San Francisco Bay are threatened by a relatively low level of selenium contamination and some are not. Bivalves and crustacean zooplankton form the base of two dominant food webs in estuaries. The dominant bivalve Potamocorbula amurensis has a 10-fold slower rate constant of loss for selenium than do common crustaceans such as copepods and the mysid Neomysis mercedis (rate constant of loss, ke = 0.025, 0.155, and 0.25 d(-1), respectively). The result is much higher selenium concentrations in the bivalve than in the crustaceans. Stable isotope analyses show that this difference is propagated up the respective food webs in San Francisco Bay. Several predators of bivalves have tissue concentrations of selenium that exceed thresholds thought to be associated with teratogenesis or reproductive failure (liver Se >15 microg g(-1) dry weight). Deformities typical of selenium-induced teratogenesis were observed in one of these species. Concentrations of selenium in tissues of predators of zooplankton are less than the thresholds. Basic physiological and ecological processes can drive wide differences in exposure and effects among species, but such processes are rarely considered in traditional evaluations of contaminant impacts. JF - Environmental science & technology AU - Stewart, A Robin AU - Luoma, Samuel N AU - Schlekat, Christian E AU - Doblin, Martina A AU - Hieb, Kathryn A AD - U.S. Geological Survey, 345 Middlefield Road, Menlo Park, California 94025, USA. arstewar@usgs.gov Y1 - 2004/09/01/ PY - 2004 DA - 2004 Sep 01 SP - 4519 EP - 4526 VL - 38 IS - 17 SN - 0013-936X, 0013-936X KW - Water Pollutants KW - 0 KW - Selenium KW - H6241UJ22B KW - Index Medicus KW - Environmental Monitoring KW - Ecosystem KW - Crustacea -- chemistry KW - San Francisco KW - Animals KW - Zooplankton -- physiology KW - Seawater KW - Mollusca -- chemistry KW - Marine Biology KW - Liver -- metabolism KW - Fishes -- physiology KW - Liver -- chemistry KW - Selenium -- analysis KW - Water Pollutants -- analysis KW - Food Chain UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66935465?accountid=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=Environmental+science+%26+technology&rft.atitle=Food+web+pathway+determines+how+selenium+affects+aquatic+ecosystems%3A+a+San+Francisco+Bay+case+study.&rft.au=Stewart%2C+A+Robin%3BLuoma%2C+Samuel+N%3BSchlekat%2C+Christian+E%3BDoblin%2C+Martina+A%3BHieb%2C+Kathryn+A&rft.aulast=Stewart&rft.aufirst=A&rft.date=2004-09-01&rft.volume=38&rft.issue=17&rft.spage=4519&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 completed - 2005-02-03 N1 - Date created - 2004-10-05 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Trace elements in moose (Alces alces) found dead in Northwestern Minnesota, USA. AN - 66813791; 15325160 AB - The moose (Alces alces) population in bog and forest areas of Northwestern Minnesota has declined for more than 25 years, and more recently the decline is throughout Northwestern Minnesota. Both deficiencies and elevations in trace elements have been linked to the health of moose worldwide. The objective of this study was to evaluate whether trace element toxicity or deficiency may have contributed to the decline of moose in Northwestern Minnesota. Livers of 81 moose found dead in Northwestern Minnesota in 1998 and 1999 were analyzed for trace elements. With the exception of selenium (Se) and copper (Cu), trace elements were not at toxic or deficient levels based on criteria set for cattle. Selenium concentrations in moose livers based on criteria set for cattle were deficient in 3.7% of livers and at a chronic toxicity level in 16% of livers. Copper concentrations based on criteria set for cattle were deficient in 39.5% of livers, marginally deficient in 29.5% of livers and adequate in 31% of livers. Moose from agricultural areas had higher concentrations, on average, of Cd, Cu, Mo and Se in their livers than moose from bog and forest areas. Older moose had higher concentrations of Cd and Zn, and lower concentrations of Cu than younger moose. Copper deficiency, which has been associated with population declines of moose in Alaska and Sweden, may be a factor contributing to the decline of moose in Northwestern Minnesota. JF - The Science of the total environment AU - Custer, Thomas W AU - Cox, Eric AU - Gray, Brian AD - US Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI 54603, USA. tom_w_custer@usgs.gov Y1 - 2004/09/01/ PY - 2004 DA - 2004 Sep 01 SP - 81 EP - 87 VL - 330 IS - 1-3 SN - 0048-9697, 0048-9697 KW - Metals, Heavy KW - 0 KW - Trace Elements KW - Index Medicus KW - Agriculture KW - Mortality KW - Minnesota KW - Animals KW - Age Factors KW - Malnutrition -- veterinary KW - Male KW - Female KW - Animals, Wild KW - Metals, Heavy -- blood KW - Deer KW - Trace Elements -- blood UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66813791?accountid=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=Trace+elements+in+moose+%28Alces+alces%29+found+dead+in+Northwestern+Minnesota%2C+USA.&rft.au=Custer%2C+Thomas+W%3BCox%2C+Eric%3BGray%2C+Brian&rft.aulast=Custer&rft.aufirst=Thomas&rft.date=2004-09-01&rft.volume=330&rft.issue=1-3&rft.spage=81&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 - 2004-10-05 N1 - Date created - 2004-08-24 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Journal of Geotechnical and Geoenvironmental Engineering AN - 51757423; 2005-010100 JF - Journal of Geotechnical and Geoenvironmental Engineering AU - Schmertmann, John AU - Fell, Robin AU - Wan, Chi Fai AU - Cyganiewicz, John AU - Foster, Mark Y1 - 2004/09// PY - 2004 DA - September 2004 SP - 980 EP - 981 PB - American Society of Civil Engineers, New York, NY VL - 130 IS - 9 SN - 1090-0241, 1090-0241 KW - sand KW - failures KW - earth dams KW - erosion KW - clastic sediments KW - cohesionless materials KW - dams KW - sediments KW - water erosion KW - gravity dams KW - piping KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51757423?accountid=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+Geotechnical+and+Geoenvironmental+Engineering&rft.atitle=Journal+of+Geotechnical+and+Geoenvironmental+Engineering&rft.au=Schmertmann%2C+John%3BFell%2C+Robin%3BWan%2C+Chi+Fai%3BCyganiewicz%2C+John%3BFoster%2C+Mark&rft.aulast=Schmertmann&rft.aufirst=John&rft.date=2004-09-01&rft.volume=130&rft.issue=9&rft.spage=980&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geotechnical+and+Geoenvironmental+Engineering&rft.issn=10900241&rft_id=info:doi/ L2 - http://scitation.aip.org/gto LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 4 N1 - PubXState - NY N1 - Document feature - illus. N1 - SuppNotes - For reference to original see Fell, R. et al., J. Geotech. Geoenviron. Eng., Vol. 129, pp. 307-314, 2003 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - clastic sediments; cohesionless materials; dams; earth dams; erosion; failures; gravity dams; piping; sand; sediments; water erosion ER - TY - JOUR T1 - Geologic mapping and fossil distribution studies in the Bridger Formation (middle Eocene), southwestern Wyoming; a progress report AN - 51709861; 2005-044192 JF - Journal of Vertebrate Paleontology AU - Murphey, Paul AU - Matthews, Neffra AU - Ting, Suyin AU - Gingerich, Philip AU - Higgins, Pennilyn AU - Small, Bryan AU - Fox, Marilyn Y1 - 2004/09// PY - 2004 DA - September 2004 SP - 97 PB - University of Oklahoma, Norman, OK VL - 24 IS - 3, Suppl. SN - 0272-4634, 0272-4634 KW - United States KW - fossil localities KW - volcanic rocks KW - igneous rocks KW - Green River basin KW - mapping KW - Cenozoic KW - sedimentary rocks KW - dates KW - sedimentation rates KW - absolute age KW - tuff KW - depositional environment KW - tephrochronology KW - Ar/Ar KW - middle Eocene KW - Eocene KW - Bridger Formation KW - Paleogene KW - southwestern Wyoming KW - Wyoming KW - pyroclastics KW - Tertiary KW - lacustrine environment KW - fluviolacustrine environment KW - fluvial environment KW - 06A:Sedimentary petrology KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51709861?accountid=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=Geologic+mapping+and+fossil+distribution+studies+in+the+Bridger+Formation+%28middle+Eocene%29%2C+southwestern+Wyoming%3B+a+progress+report&rft.au=Murphey%2C+Paul%3BMatthews%2C+Neffra%3BTing%2C+Suyin%3BGingerich%2C+Philip%3BHiggins%2C+Pennilyn%3BSmall%2C+Bryan%3BFox%2C+Marilyn&rft.aulast=Murphey&rft.aufirst=Paul&rft.date=2004-09-01&rft.volume=38&rft.issue=15&rft.spage=4106&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ L2 - http://www.bioone.org/loi/vrpa LA - English DB - GeoRef N1 - Conference title - Society of Vertebrate Paleontology, 64th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; Ar/Ar; Bridger Formation; Cenozoic; dates; depositional environment; Eocene; fluvial environment; fluviolacustrine environment; fossil localities; Green River basin; igneous rocks; lacustrine environment; mapping; middle Eocene; Paleogene; pyroclastics; sedimentary rocks; sedimentation rates; southwestern Wyoming; tephrochronology; Tertiary; tuff; United States; volcanic rocks; Wyoming ER - TY - JOUR T1 - A quest for control; investigating techniques for collecting 3-D data on dinosaur tracks and bones AN - 51708035; 2005-044158 JF - Journal of Vertebrate Paleontology AU - Matthews, Neffra AU - Noble, Tommy AU - Breithaupt, Brent AU - Ting, Suyin AU - Gingerich, Philip AU - Higgins, Pennilyn AU - Small, Bryan AU - Fox, Marilyn Y1 - 2004/09// PY - 2004 DA - September 2004 SP - 90 PB - University of Oklahoma, Norman, OK VL - 24 IS - 3, Suppl. SN - 0272-4634, 0272-4634 KW - United States KW - Global Positioning System KW - laser methods KW - bone beds KW - Cretaceous KW - ichnofossils KW - techniques KW - Upper Cretaceous KW - photography KW - sedimentary rocks KW - geographic information systems KW - sampling KW - bones KW - dinosaurs KW - coordinates KW - Chordata KW - Upper Jurassic KW - three-dimensional models KW - Jurassic KW - radar methods KW - tracks KW - Middle Jurassic KW - Mesozoic KW - Reptilia KW - Wyoming KW - lidar methods KW - information systems KW - Utah KW - Vertebrata KW - Colorado KW - Tetrapoda KW - 11:Vertebrate paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51708035?accountid=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+quest+for+control%3B+investigating+techniques+for+collecting+3-D+data+on+dinosaur+tracks+and+bones&rft.au=Matthews%2C+Neffra%3BNoble%2C+Tommy%3BBreithaupt%2C+Brent%3BTing%2C+Suyin%3BGingerich%2C+Philip%3BHiggins%2C+Pennilyn%3BSmall%2C+Bryan%3BFox%2C+Marilyn&rft.aulast=Matthews&rft.aufirst=Neffra&rft.date=2004-09-01&rft.volume=24&rft.issue=3%2C+Suppl.&rft.spage=90&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 - Society of Vertebrate Paleontology, 64th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bone beds; bones; Chordata; Colorado; coordinates; Cretaceous; dinosaurs; geographic information systems; Global Positioning System; ichnofossils; information systems; Jurassic; laser methods; lidar methods; Mesozoic; Middle Jurassic; photography; radar methods; Reptilia; sampling; sedimentary rocks; techniques; Tetrapoda; three-dimensional models; tracks; United States; Upper Cretaceous; Upper Jurassic; Utah; Vertebrata; Wyoming ER - TY - JOUR T1 - 30,000 vertebrate fossils on line; New Mexico Museum of Natural History and Science's digital database, a research tool AN - 51707631; 2005-044046 JF - Journal of Vertebrate Paleontology AU - Hester, Patricia AU - Heckert, Andrew AU - Berkhoudt, Rene AU - Mathias, Scott AU - Ting, Suyin AU - Gingerich, Philip AU - Higgins, Pennilyn AU - Small, Bryan AU - Fox, Marilyn Y1 - 2004/09// PY - 2004 DA - September 2004 SP - 70 PB - University of Oklahoma, Norman, OK VL - 24 IS - 3, Suppl. SN - 0272-4634, 0272-4634 KW - United States KW - Chordata KW - Paleozoic KW - New Mexico Museum of Natural History and Science KW - ichnofossils KW - data processing KW - New Mexico KW - Southwestern U.S. KW - Mesozoic KW - Pisces KW - Cenozoic KW - Phanerozoic KW - museums KW - data bases KW - catalogs KW - Vertebrata KW - Tetrapoda KW - collections KW - digitization KW - 11:Vertebrate paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51707631?accountid=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=30%2C000+vertebrate+fossils+on+line%3B+New+Mexico+Museum+of+Natural+History+and+Science%27s+digital+database%2C+a+research+tool&rft.au=Hester%2C+Patricia%3BHeckert%2C+Andrew%3BBerkhoudt%2C+Rene%3BMathias%2C+Scott%3BTing%2C+Suyin%3BGingerich%2C+Philip%3BHiggins%2C+Pennilyn%3BSmall%2C+Bryan%3BFox%2C+Marilyn&rft.aulast=Hester&rft.aufirst=Patricia&rft.date=2004-09-01&rft.volume=24&rft.issue=3%2C+Suppl.&rft.spage=70&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 - Society of Vertebrate Paleontology, 64th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - catalogs; Cenozoic; Chordata; collections; data bases; data processing; digitization; ichnofossils; Mesozoic; museums; New Mexico; New Mexico Museum of Natural History and Science; Paleozoic; Phanerozoic; Pisces; Southwestern U.S.; Tetrapoda; United States; Vertebrata ER - TY - JOUR T1 - The rhinoceros Subhyracodon, and associated fauna from the Centennial Site, Wind Cave National Park, Black Hills, South Dakota AN - 51707194; 2005-044163 JF - Journal of Vertebrate Paleontology AU - McDonald, H Gregory AU - Horrocks, Rodney AU - Ting, Suyin AU - Gingerich, Philip AU - Higgins, Pennilyn AU - Small, Bryan AU - Fox, Marilyn Y1 - 2004/09// PY - 2004 DA - September 2004 SP - 91 PB - University of Oklahoma, Norman, OK VL - 24 IS - 3, Suppl. SN - 0272-4634, 0272-4634 KW - United States KW - Brule Formation KW - Mesohippus KW - Ceratomorpha KW - national parks KW - Black Hills KW - Cenozoic KW - Theria KW - skull KW - bones KW - White River Group KW - skeletons KW - taphonomy KW - Eutheria KW - Wind Cave National Park KW - juvenile taxa KW - Perissodactyla KW - Chordata KW - Equidae KW - Mammalia KW - Custer County South Dakota KW - Paleogene KW - public lands KW - new names KW - Centennial Site KW - Tertiary KW - Rhinocerotidae KW - Subhyracodon KW - Vertebrata KW - Hippomorpha KW - Tetrapoda KW - South Dakota KW - Oligocene KW - 11:Vertebrate paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51707194?accountid=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=The+rhinoceros+Subhyracodon%2C+and+associated+fauna+from+the+Centennial+Site%2C+Wind+Cave+National+Park%2C+Black+Hills%2C+South+Dakota&rft.au=McDonald%2C+H+Gregory%3BHorrocks%2C+Rodney%3BTing%2C+Suyin%3BGingerich%2C+Philip%3BHiggins%2C+Pennilyn%3BSmall%2C+Bryan%3BFox%2C+Marilyn&rft.aulast=McDonald&rft.aufirst=H&rft.date=2004-09-01&rft.volume=24&rft.issue=3%2C+Suppl.&rft.spage=91&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 - Society of Vertebrate Paleontology, 64th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Black Hills; bones; Brule Formation; Cenozoic; Centennial Site; Ceratomorpha; Chordata; Custer County South Dakota; Equidae; Eutheria; Hippomorpha; juvenile taxa; Mammalia; Mesohippus; national parks; new names; Oligocene; Paleogene; Perissodactyla; public lands; Rhinocerotidae; skeletons; skull; South Dakota; Subhyracodon; taphonomy; Tertiary; Tetrapoda; Theria; United States; Vertebrata; White River Group; Wind Cave National Park ER - TY - JOUR T1 - A new paleontological research and curation facility at John Day Fossil Beds National Monument, Oregon; Part III, Bringing entombed biotas to life AN - 51707073; 2005-043995 JF - Journal of Vertebrate Paleontology AU - Fremd, Theodore AU - Smith, Matt AU - Foss, Scott AU - Dunn, Regan AU - Ting, Suyin AU - Gingerich, Philip AU - Higgins, Pennilyn AU - Small, Bryan AU - Fox, Marilyn Y1 - 2004/09// PY - 2004 DA - September 2004 SP - 60 EP - 61 PB - University of Oklahoma, Norman, OK VL - 24 IS - 3, Suppl. SN - 0272-4634, 0272-4634 KW - United States KW - Chordata KW - Mammalia KW - John Day Fossil Beds National Monument KW - research KW - public lands KW - Oregon KW - curation KW - national monuments KW - exhibits KW - museums KW - Vertebrata KW - Tetrapoda KW - 11:Vertebrate paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51707073?accountid=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+paleontological+research+and+curation+facility+at+John+Day+Fossil+Beds+National+Monument%2C+Oregon%3B+Part+III%2C+Bringing+entombed+biotas+to+life&rft.au=Fremd%2C+Theodore%3BSmith%2C+Matt%3BFoss%2C+Scott%3BDunn%2C+Regan%3BTing%2C+Suyin%3BGingerich%2C+Philip%3BHiggins%2C+Pennilyn%3BSmall%2C+Bryan%3BFox%2C+Marilyn&rft.aulast=Fremd&rft.aufirst=Theodore&rft.date=2004-09-01&rft.volume=24&rft.issue=3%2C+Suppl.&rft.spage=60&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 - Society of Vertebrate Paleontology, 64th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Chordata; curation; exhibits; John Day Fossil Beds National Monument; Mammalia; museums; national monuments; Oregon; public lands; research; Tetrapoda; United States; Vertebrata ER - TY - JOUR T1 - Toward a comprehensive information system to assist invasive species management in Hawaii and Pacific Islands AN - 21216638; 6052891 AB - The need for coordinated regional and global electronic databases to assist prevention, early detection, rapid response, and control of biological invasions is well accepted. The Pacific Basin Information Node (PBIN), a node of the National Biological Information Infrastructure, has been increasingly engaged in the invasive species enterprise since its establishment in 2001. Since this time, PBIN has sought to support frontline efforts at combating invasions, through working with stakeholders in conservation, agriculture, forestry, health, and commerce to support joint information needs. Although initial emphasis has been on Hawaii, cooperative work with other Pacific islands and countries of the Pacific Rim is already underway and planned. JF - Weed Science AU - Fornwall, M AU - Loope, L AD - Corresponding author. USGS Pacific Basin Information Node, 310 West Ka'ahumanu Avenue, Kahului, Maui, HI 96732, mark_fornwall@usgs.gov Y1 - 2004/09// PY - 2004 DA - Sep 2004 SP - 854 EP - 856 PB - Weed Science Society of America VL - 52 IS - 5 SN - 0043-1745, 0043-1745 KW - Sustainability Science Abstracts KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21216638?accountid=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=Weed+Science&rft.atitle=Toward+a+comprehensive+information+system+to+assist+invasive+species+management+in+Hawaii+and+Pacific+Islands&rft.au=Fornwall%2C+M%3BLoope%2C+L&rft.aulast=Fornwall&rft.aufirst=M&rft.date=2004-09-01&rft.volume=52&rft.issue=5&rft.spage=854&rft.isbn=&rft.btitle=&rft.title=Weed+Science&rft.issn=00431745&rft_id=info:doi/10.1043%2F0043-1745%282004%290522.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0043-1745&volume=52&page=854 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-12-01 N1 - Last updated - 2011-12-14 DO - http://dx.doi.org/10.1043/0043-1745(2004)052<0854:TACIST>2.0.CO;2 ER - TY - JOUR T1 - Approaches to surface complexation modeling of Uranium(VI) adsorption on aquifer sediments AN - 19767710; 5999781 AB - Uranium(VI) adsorption onto aquifer sediments was studied in batch experiments as a function of pH and U(VI) and dissolved carbonate concentrations in artificial groundwater solutions. The sediments were collected from an alluvial aquifer at a location upgradient of contamination from a former uranium mill operation at Naturita, Colorado (USA). The ranges of aqueous chemical conditions used in the U(VI) adsorption experiments (pH 6.9 to 7.9; U(VI) concentration 2.5 . 10 super(-8) to 1 . 10 super(-5) M; partial pressure of carbon dioxide gas 0.05 to 6.8%) were based on the spatial variation in chemical conditions observed in 1999-2000 in the Naturita alluvial aquifer. The major minerals in the sediments were quartz, feldspars, and calcite, with minor amounts of magnetite and clay minerals. Quartz grains commonly exhibited coatings that were greater than 10 nm in thickness and composed of an illite- smectite clay with occluded ferrihydrite and goethite nanoparticles. Chemical extractions of quartz grains removed from the sediments were used to estimate the masses of iron and aluminum present in the coatings. Various surface complexation modeling approaches were compared in terms of the ability to describe the U(VI) experimental data and the data requirements for model application to the sediments. Published models for U(VI) adsorption on reference minerals were applied to predict U(VI) adsorption based on assumptions about the sediment surface composition and physical properties (e.g. surface area and electrical double layer). Predictions from these models were highly variable, with results overpredicting or underpredicting the experimental data, depending on the assumptions used to apply the model. Although the models for reference minerals are supported by detailed experimental studies (and in ideal cases, surface spectroscopy), the results suggest that errors are caused in applying the models directly to the sediments by uncertain knowledge of: 1) the proportion and types of surface functional groups available for adsorption in the surface coatings; 2) the electric field at the mineral-water interface; and 3) surface reactions of major ions in the aqueous phase, such as Ca super(2+), Mg super(2+), HCO sub(3) super(-), SO sub(4) super(2-), H sub(4)SiO sub(4), and organic acids. In contrast, a semi-empirical surface complexation modeling approach can be used to describe the U(VI) experimental data more precisely as a function of aqueous chemical conditions. This approach is useful as a tool to describe the variation in U(VI) retardation as a function of chemical conditions in field-scale reactive transport simulations, and the approach can be used at other field sites. However, the semi-empirical approach is limited by the site-specific nature of the model parameters. JF - Geochimica et Cosmochimica Acta AU - Davis, JA AU - Meece, DE AU - Kohler, M AU - Curtis, G P AD - U. S. Geological Survey, Menlo Park, CA 94025, USA, jadavis@usgs.gov Y1 - 2004/09// PY - 2004 DA - Sep 2004 SP - 3621 EP - 3641 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 68 IS - 18 SN - 0016-7037, 0016-7037 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Pollution Abstracts; Meteorological & Geoastrophysical Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Aqualine Abstracts KW - Aquifer KW - Organic acids KW - Smectite KW - Nanoparticles KW - Spatial variations KW - Quartz KW - Electric fields KW - Physical Properties KW - Sediment Contamination KW - pH KW - Experimental Data KW - Sediment chemistry KW - Coating materials KW - Calcite KW - Carbon cycle KW - Electric Fields KW - Model Studies KW - USA, Colorado KW - Numerical simulations KW - Groundwater pollution KW - Groundwater KW - Carbon dioxide KW - Iron KW - Carbon Dioxide KW - surface area KW - Aquifers KW - Clay minerals KW - Spectroscopy KW - Goethite KW - spatial distribution KW - Uranium KW - Ions KW - Sediment pollution KW - Clay KW - Organic Acids KW - chemical extraction KW - Hydrogen Ion Concentration KW - Electric field KW - Sediments KW - Data requirements KW - Aluminum KW - Adsorption KW - Alluvial Aquifers KW - Minerals KW - Coatings KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - M2 556.38:Groundwater Basins (556.38) KW - Q2 09187:Geochemistry of sediments 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/19767710?accountid=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=Geochimica+et+Cosmochimica+Acta&rft.atitle=Approaches+to+surface+complexation+modeling+of+Uranium%28VI%29+adsorption+on+aquifer+sediments&rft.au=Davis%2C+JA%3BMeece%2C+DE%3BKohler%2C+M%3BCurtis%2C+G+P&rft.aulast=Davis&rft.aufirst=JA&rft.date=2004-09-01&rft.volume=68&rft.issue=18&rft.spage=3621&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2004.03.003 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2014-06-26 N1 - SubjectsTermNotLitGenreText - Spatial variations; Sediment chemistry; Aquifer; Electric fields; Quartz; Smectite; Coating materials; Carbon cycle; Goethite; Data requirements; Clay minerals; Aquifers; Numerical simulations; Carbon dioxide; Spectroscopy; Electric field; Nanoparticles; Sediment pollution; Ions; Clay; chemical extraction; Organic acids; Sediments; spatial distribution; Aluminum; Adsorption; Groundwater pollution; Groundwater; Iron; Minerals; pH; Coatings; surface area; Experimental Data; Organic Acids; Calcite; Hydrogen Ion Concentration; Electric Fields; Model Studies; Uranium; Physical Properties; Sediment Contamination; Alluvial Aquifers; Carbon Dioxide; USA, Colorado DO - http://dx.doi.org/10.1016/j.gca.2004.03.003 ER - TY - JOUR T1 - Dust Storms and Their Impact on Ocean and Human Health: Dust in Earth's Atmosphere AN - 19446623; 6787976 AB - Satellite imagery has greatly influenced our understanding of dust activity on a global scale. A number of different satellites such as NASA's Earth-Probe Total Ozone Mapping Spectrometer (TOMS) and Sea-viewing Field-of-view Sensor (SeaWiFS) acquire daily global-scale data used to produce imagery for monitoring dust storm formation and movement. This global-scale imagery has documented the frequent transmission of dust storm-derived soils through Earth's atmosphere and the magnitude of many of these events. While various research projects have been undertaken to understand this normal planetary process, little has been done to address its impact on ocean and human health. This review will address the ability of dust storms to influence marine microbial population densities and transport of soil-associated toxins and pathogenic microorganisms to marine environments. The implications of dust on ocean and human health in this emerging scientific field will be discussed. JF - EcoHealth AU - Griffin, D W AU - Kellogg, CA AD - Earth Surface Dynamics, U.S. Geological Survey, 600 4th Street South, St. Petersburg, FL 33701, USA, dgriffin@usgs.gov Y1 - 2004/09// PY - 2004 DA - Sep 2004 SP - 284 EP - 295 VL - 1 IS - 3 SN - 1612-9202, 1612-9202 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Ecology Abstracts; Pollution Abstracts; Health & Safety Science Abstracts KW - Marine microorganisms KW - Remote sensing KW - Population density KW - Pollution effects KW - Atmosphere KW - Storms KW - Dust KW - Public health KW - Soil KW - Marine environment KW - Mapping KW - Ozone KW - Data processing KW - Environmental impact KW - Pathogens KW - Satellites KW - Toxins KW - Air pollution KW - Oceans KW - Microorganisms KW - D 04040:Ecosystem and Ecology Studies KW - H 12000:Epidemiology and Public Health KW - A 01400:Soil Microbes KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19446623?accountid=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=EcoHealth&rft.atitle=Dust+Storms+and+Their+Impact+on+Ocean+and+Human+Health%3A+Dust+in+Earth%27s+Atmosphere&rft.au=Griffin%2C+D+W%3BKellogg%2C+CA&rft.aulast=Griffin&rft.aufirst=D&rft.date=2004-09-01&rft.volume=1&rft.issue=3&rft.spage=284&rft.isbn=&rft.btitle=&rft.title=EcoHealth&rft.issn=16129202&rft_id=info:doi/10.1007%2Fs10393-004-0120-8 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-05-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Data processing; Marine microorganisms; Population density; Storms; Satellites; Atmosphere; Dust; Toxins; Soil; Marine environment; Oceans; Mapping; Ozone; Air pollution; Remote sensing; Environmental impact; Microorganisms; Pollution effects; Pathogens; Public health DO - http://dx.doi.org/10.1007/s10393-004-0120-8 ER - TY - JOUR T1 - When Should Mayfield Model Data be Discarded? AN - 17814653; 6209214 AB - Much confusion exists over the proper way to handle nest-fate data collected after the fledge date when using the Mayfield method. I provide a simple numerical example showing how use of these data can bias estimates of daily survival probability, and present a likelihood function demonstrating that nest-fate data collected after the fledge date do not contribute any information for parameter estimation, except in a seldom-realized special case. Consequently, it is recommended that under the Mayfield model, nest-fate data collected after the fledge date be discarded. JF - Wilson Bulletin AU - Stanley, T R AD - U.S. Geological Survey, Fort Collins Science Center, 2150 Centre Ave., Bldg. C, Fort Collins, CO 80526, USA, tom_stanley@usgs.gov Y1 - 2004/09// PY - 2004 DA - Sep 2004 SP - 267 EP - 269 PB - The Wilson Ornithological Society VL - 116 IS - 3 SN - 0043-5643, 0043-5643 KW - Ecology Abstracts KW - Mathematical models KW - Survival KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17814653?accountid=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=When+Should+Mayfield+Model+Data+be+Discarded%3F&rft.au=Stanley%2C+T+R&rft.aulast=Stanley&rft.aufirst=T&rft.date=2004-09-01&rft.volume=116&rft.issue=3&rft.spage=267&rft.isbn=&rft.btitle=&rft.title=Wilson+Bulletin&rft.issn=00435643&rft_id=info:doi/10.1043%2F0043-5643%282004%29116%280267%3AWSMMDB%292.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0043-5643&volume=116&page=267 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Mathematical models; Survival DO - http://dx.doi.org/10.1043/0043-5643(2004)116(0267:WSMMDB)2.0.CO;2 ER - TY - JOUR T1 - Species boundaries, phylogeography and conservation genetics of the red-legged frog (Rana aurora/draytonii ) complex AN - 17718478; 6012031 AB - The red-legged frog, Rana aurora, has been recognized as both a single, polytypic species and as two distinct species since its original description 150 years ago. It is currently recognized as one species with two geographically contiguous subspecies, aurora and draytonii; the latter is protected under the US Endangered Species Act. We present the results of a survey of 50 populations of red-legged frogs from across their range plus four outgroup species for variation in a phylogenetically informative, similar to 400 base pairs (bp) fragment of the mitochondrial cytochrome b gene. Our mtDNA analysis points to several major results. (1) In accord with several other lines of independent evidence, aurora and draytonii are each diagnosably distinct, evolutionary lineages; the mtDNA data indicate that they do not constitute a monophyletic group, but rather that aurora and R. cascadae from the Pacific northwest are sister taxa; (2) the range of the draytonii mtDNA clade extends about 100 km further north in coastal California than was previously suspected, and corresponds closely with the range limits or phylogeographical breaks of several codistributed taxa; (3) a narrow zone of overlap exists in southern Mendocino County between aurora and draytonii haplotypes, rather than a broad intergradation zone; and (4) the critically endangered population of draytonii in Riverside County, CA forms a distinct clade with frogs from Baja California, Mexico. The currently available evidence favours recognition of aurora and draytonii as separate species with a narrow zone of overlap in northern California. JF - Molecular Ecology AU - Bradley Shaffer, H AU - Fellers, G M AU - Voss, Randal, S AU - Oliver, J C AU - Pauly, G B AD - Section of Evolution and Ecology, and Center for Population Biology, University of California, Davis, CA 95616, USA, Western Ecological Research Center, USGS, Point Reyes National Seashore, Point Reyes, CA 94956, USA, Department of Biology, University of Kentucky, Lexington, KY 40506, USA, Interdisciplinary Program in Insect Sciences, University of Arizona, Tucson, AZ 85721, USA, Section of Integrative Biology, The University of Texas, Austin, TX 78712, USA, hbshaffer@ucdavis.edu Y1 - 2004/09// PY - 2004 DA - Sep 2004 SP - 2667 EP - 2677 PB - Blackwell Science Ltd VL - 13 IS - 9 SN - 0962-1083, 0962-1083 KW - Cascades frog KW - Cytochrome b KW - Molecular phylogeny KW - Phylogeography KW - True frogs KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts; Genetics Abstracts KW - Cytochromes KW - Geographical distribution KW - Amphibiotic species KW - Nucleotide sequence KW - Mitochondria KW - Freshwater KW - Rana aurora KW - Population genetics KW - Sibling species KW - Haplotypes KW - USA, California KW - Rana cascadae KW - Base pairs KW - Phylogeny KW - Mexico, Baja California KW - Data processing KW - USA, Pacific Northwest KW - Anura KW - Rare species KW - Amphibia KW - Rana draytonii KW - Animal morphology KW - Mitochondrial DNA KW - USA, California, Riverside Cty. KW - DNA KW - Nature conservation KW - Endangered species KW - Cladistics KW - Taxonomy KW - USA, California, Mendocino Cty. KW - Conservation genetics KW - Evolution KW - Q1 08443:Population genetics KW - Q5 08523:Conservation, wildlife management and recreation KW - Q1 08323:Taxonomy and morphology KW - G 07270:Ecological genetics KW - G 07373:Amphibians KW - D 04669:Amphibians UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17718478?accountid=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=Molecular+Ecology&rft.atitle=Species+boundaries%2C+phylogeography+and+conservation+genetics+of+the+red-legged+frog+%28Rana+aurora%2Fdraytonii+%29+complex&rft.au=Bradley+Shaffer%2C+H%3BFellers%2C+G+M%3BVoss%2C+Randal%2C+S%3BOliver%2C+J+C%3BPauly%2C+G+B&rft.aulast=Bradley+Shaffer&rft.aufirst=H&rft.date=2004-09-01&rft.volume=13&rft.issue=9&rft.spage=2667&rft.isbn=&rft.btitle=&rft.title=Molecular+Ecology&rft.issn=09621083&rft_id=info:doi/10.1111%2Fj.1365-294X.2004.02285.x LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Phylogeny; Cytochromes; Geographical distribution; Amphibiotic species; Nucleotide sequence; Rare species; Animal morphology; Population genetics; Sibling species; Nature conservation; DNA; Taxonomy; Cladistics; Evolution; Cytochrome b; Mitochondrial DNA; Data processing; Haplotypes; Endangered species; Mitochondria; Conservation genetics; Base pairs; Rana draytonii; Amphibia; Anura; Rana cascadae; Rana aurora; Mexico, Baja California; USA, Pacific Northwest; USA, California, Riverside Cty.; USA, California; USA, California, Mendocino Cty.; Freshwater DO - http://dx.doi.org/10.1111/j.1365-294X.2004.02285.x ER - TY - JOUR T1 - Spatial partitioning and asymmetric hybridization among sympatric coastal steelhead trout (Oncorhynchus mykiss irideus ), coastal cutthroat trout (O. clarki clarki ) and interspecific hybrids AN - 17717111; 6012040 AB - Hybridization between sympatric species provides unique opportunities to examine the contrast between mechanisms that promote hybridization and maintain species integrity. We surveyed hybridization between sympatric coastal steelhead (Oncorhynchus mykiss irideus) and coastal cutthroat trout (O. clarki clarki) from two streams in Washington State, Olsen Creek (256 individuals sampled) and Jansen Creek (431 individuals sampled), over a 3-year period. We applied 11 O. mykiss-specific nuclear markers, 11 O. c. clarki-specific nuclear markers and a mitochondrial DNA marker to assess spatial partitioning among species and hybrids and determine the directionality of hybridization. F sub(1) and post-F sub(1) hybrids, respectively, composed an average of 1.2% and 33.6% of the population sampled in Jansen Creek, and 5.9% and 30.4% of the population sampled in Olsen Creek. A modest level of habitat partitioning among species and hybrids was detected. Mitochondrial DNA analysis indicated that all F sub(1) hybrids (15 from Olsen Creek and five from Jansen Creek) arose from matings between steelhead females and cutthroat males implicating a sneak spawning behaviour by cutthroat males. First-generation cutthroat backcrosses contained O. c. clarki mtDNA more often than expected suggesting natural selection against F sub(1) hybrids. More hybrids were backcrossed toward cutthroat than steelhead and our results indicate recurrent hybridization within these creeks. Age analysis demonstrated that hybrids were between 1 and 4 years old. These results suggest that within sympatric salmonid hybrid zones, exogenous processes (environmentally dependent factors) help to maintain the distinction between parental types through reduced fitness of hybrids within parental environments while divergent natural selection promotes parental types through distinct adaptive advantages of parental phenotypes. JF - Molecular Ecology AU - Ostberg, C O AU - Slatton, S L AU - Rodriguez, R J AD - US Geological Survey, Biological Resources Division, Western Fisheries Research Center, 6505 North East 65th Street, Seattle, WA 98115, USA, carl_ostberg@usgs.gov Y1 - 2004/09// PY - 2004 DA - Sep 2004 SP - 2773 EP - 2788 PB - Blackwell Science Ltd VL - 13 IS - 9 SN - 0962-1083, 0962-1083 KW - Cutthroat trout KW - Jansen Creek KW - Olsen Creek KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts; Genetics Abstracts KW - Fitness KW - Age KW - Sexual reproduction KW - Genotypes KW - Habitat selection KW - Streams KW - Natural selection KW - Environmental factors KW - Hybridization KW - USA, Washington KW - Mating KW - Hybrids KW - Reproductive behaviour KW - Rivers KW - Sexual behaviour KW - Sympatric populations KW - Hybrid zones KW - Spawning KW - Habitat KW - Oncorhynchus clarki clarki KW - Mitochondrial DNA KW - Oncorhynchus mykiss irideus KW - Gender KW - DNA KW - Q1 08345:Genetics and evolution KW - G 07280:Behavioral genetics KW - G 07371:Fish KW - D 04668:Fish KW - Q1 08423:Behaviour UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17717111?accountid=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=Spatial+partitioning+and+asymmetric+hybridization+among+sympatric+coastal+steelhead+trout+%28Oncorhynchus+mykiss+irideus+%29%2C+coastal+cutthroat+trout+%28O.+clarki+clarki+%29+and+interspecific+hybrids&rft.au=Ostberg%2C+C+O%3BSlatton%2C+S+L%3BRodriguez%2C+R+J&rft.aulast=Ostberg&rft.aufirst=C&rft.date=2004-09-01&rft.volume=13&rft.issue=9&rft.spage=2773&rft.isbn=&rft.btitle=&rft.title=Molecular+Ecology&rft.issn=09621083&rft_id=info:doi/10.1111%2Fj.1365-294X.2004.02268.x LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Rivers; Sexual behaviour; Sympatric populations; Sexual reproduction; Spawning; Genotypes; Habitat selection; Environmental factors; Natural selection; Hybridization; Hybrids; DNA; Reproductive behaviour; Fitness; Mating; Age; Mitochondrial DNA; Gender; Hybrid zones; Habitat; Streams; Oncorhynchus clarki clarki; Oncorhynchus mykiss irideus; USA, Washington DO - http://dx.doi.org/10.1111/j.1365-294X.2004.02268.x ER - TY - JOUR T1 - Microsatellite DNA markers for the study of horseshoe crab (Limulus polyphemus) population structure AN - 17704510; 6012565 AB - Twenty-two microsatellite DNA loci were identified and characterized for horseshoe crabs (Limulus polyphemus) collected from two Atlantic coast and one Gulf of Mexico site. These markers revealed a high degree of genetic diversity (8-35 alleles per locus), heterozygosity (25.0% to 100.0%), and allelic heterogeneity (69.8% of comparisons). Considerable regional differentiation was observed as genetic distances (chord) ranged between 0.25 and 0.45, and all F sub(ST) values (0.014-0.092) were significant. These preliminary findings are consistent with patterns of regional differentiation observed using allozyme variation and contradictory to findings of limited gene flow reported for sequence variation at the mitochondrial DNA COI region. JF - Molecular Ecology Notes AU - King, T L AU - Eackles AD - U.S. Geological Survey-Biological Resources Division, Leetown Science Center-Aquatic Ecology Branch, 11649 Leetown Road, Kearneysville, West Virginia 25430, USA, tim_king@usgs.gov Y1 - 2004/09// PY - 2004 DA - Sep 2004 SP - 394 EP - 396 PB - Blackwell Science Ltd VL - 4 IS - 3 SN - 1471-8278, 1471-8278 KW - Horseshoe crab KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources; Genetics Abstracts KW - Marine KW - Allelles KW - Microsatellites KW - Genetic diversity KW - Mitochondria KW - Allozymes KW - Heterozygosity KW - A, Atlantic KW - ASW, Mexico Gulf KW - Limulus polyphemus KW - Genes KW - Genetic markers KW - DNA KW - Primers KW - Population structure KW - G 07360:General KW - D 04655:Invertebrates - general KW - Q1 08285:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17704510?accountid=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+Notes&rft.atitle=Microsatellite+DNA+markers+for+the+study+of+horseshoe+crab+%28Limulus+polyphemus%29+population+structure&rft.au=King%2C+T+L%3BEackles&rft.aulast=King&rft.aufirst=T&rft.date=2004-09-01&rft.volume=4&rft.issue=3&rft.spage=394&rft.isbn=&rft.btitle=&rft.title=Molecular+Ecology+Notes&rft.issn=14718278&rft_id=info:doi/10.1111%2Fj.1471-8286.2004.00663.x LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Genes; Allelles; DNA; Mitochondria; Genetic diversity; Allozymes; Population structure; Genetic markers; Microsatellites; Primers; Heterozygosity; Limulus polyphemus; ASW, Mexico Gulf; A, Atlantic; Marine DO - http://dx.doi.org/10.1111/j.1471-8286.2004.00663.x ER - TY - JOUR T1 - Three-dimensional local grid refinement for block-centered finite-difference groundwater models using iteratively coupled shared nodes: a new method of interpolation and analysis of errors AN - 17606869; 6033934 AB - This paper describes work that extends to three dimensions the two- dimensional local-grid refinement method for block-centered finite-difference groundwater models of Mehl and Hill [Development and evaluation of a local grid refinement method for block-centered finite-difference groundwater models using shared nodes. Adv Water Resour 2002; 25(5):497-511]. In this approach, the (parent) finite-difference grid is discretized more finely within a (child) sub- region. The grid refinement method sequentially solves each grid and uses specified flux (parent) and specified head (child) boundary conditions to couple the grids. Iteration achieves convergence between heads and fluxes of both grids. Of most concern is how to interpolate heads onto the boundary of the child grid such that the physics of the parent-grid flow is retained in three dimensions. We develop a new two-step, "cage-shell" interpolation method based on the solution of the flow equation on the boundary of the child between nodes shared with the parent grid. Error analysis using a test case indicates that the shared-node local grid refinement method with cage-shell boundary head interpolation is accurate and robust, and the resulting code is used to investigate three-dimensional local grid refinement of stream-aquifer interactions. Results reveal that (1) the parent and child grids interact to shift the true head and flux solution to a different solution where the heads and fluxes of both grids are in equilibrium, (2) the locally refined model provided a solution for both heads and fluxes in the region of the refinement that was more accurate than a model without refinement only if iterations are performed so that both heads and fluxes are in equilibrium, and (3) the accuracy of the coupling is limited by the parent-grid size; a coarse parent grid limits correct representation of the hydraulics in the feedback from the child grid. JF - Advances in Water Resources AU - Mehl, S AU - Hill, M C AD - US Geological Survey, 3215 Marine St. Boulder, CO 80303, USA, swmehl@usgs.gov Y1 - 2004/09// PY - 2004 DA - Sep 2004 SP - 899 EP - 912 PB - Elsevier Science Ltd., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 27 IS - 9 SN - 0309-1708, 0309-1708 KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - AQ 00001:Water Resources and Supplies KW - M2 556.38:Groundwater Basins (556.38) KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17606869?accountid=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=Advances+in+Water+Resources&rft.atitle=Three-dimensional+local+grid+refinement+for+block-centered+finite-difference+groundwater+models+using+iteratively+coupled+shared+nodes%3A+a+new+method+of+interpolation+and+analysis+of+errors&rft.au=Mehl%2C+S%3BHill%2C+M+C&rft.aulast=Mehl&rft.aufirst=S&rft.date=2004-09-01&rft.volume=27&rft.issue=9&rft.spage=899&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/10.1016%2Fj.advwatres.2004.06.004 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1016/j.advwatres.2004.06.004 ER - TY - JOUR T1 - Effects of the benthic cyanobacterium Lyngbya majuscula on larval recruitment of the reef corals Acropora surculosa and Pocillopora damicornis AN - 17338596; 6283060 JF - Coral Reefs AU - Kuffner, Ilsa B AU - Paul, Valerie J AD - University of Guam Marine Laboratory, Mangilao, Guam, 96923, USA, ikuffner@usgs.gov Y1 - 2004/09// PY - 2004 DA - Sep 2004 SP - 455 EP - 458 PB - Springer-Verlag, Tiergartenstrasse 17 Heidelberg 69121 Germany, [mailto:subscriptions@springer.de], [URL:http://www.springer.de/] VL - 23 IS - 3 SN - 0722-4028, 0722-4028 KW - Scleractinia KW - Stony corals KW - Sustainability Science Abstracts; Oceanic Abstracts KW - Marine KW - O 1070:Ecology/Community Studies KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17338596?accountid=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=Coral+Reefs&rft.atitle=Effects+of+the+benthic+cyanobacterium+Lyngbya+majuscula+on+larval+recruitment+of+the+reef+corals+Acropora+surculosa+and+Pocillopora+damicornis&rft.au=Kuffner%2C+Ilsa+B%3BPaul%2C+Valerie+J&rft.aulast=Kuffner&rft.aufirst=Ilsa&rft.date=2004-09-01&rft.volume=23&rft.issue=3&rft.spage=391&rft.isbn=&rft.btitle=&rft.title=New+Zealand+Journal+of+Marine+and+Freshwater+Research&rft.issn=00288330&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-02-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Marine DO - http://dx.doi.org/10.1007/s00338-004-0416-8 ER - TY - JOUR T1 - Estimates Of Fetch-Induced Errors In Bowen-Ratio Energy-Budget Measurements Of Evapotranspiration From A Prairie Wetland, Cottonwood Lake Area, North Dakota, USA AN - 17322180; 6053247 AB - Micrometeorological measurements of evapotranspiration (ET) often are affected to some degree by errors arising from limited fetch. A recently developed model was used to estimate fetch-induced errors in Bowen-ratio energy-budget measurements of ET made at a small wetland with fetch-to-height ratios ranging from 34 to 49. Estimated errors were small, averaging -1.90% plus or minus 0.59%. The small errors are attributed primarily to the near-zero lower sensor height, and the negative bias reflects the greater Bowen ratios of the drier surrounding upland. Some of the variables and parameters affecting the error were not measured, but instead are estimated. A sensitivity analysis indicates that the uncertainty arising from these estimates is small. In general, fetch-induced error in measured wetland ET increases with decreasing fetch-to-height ratio, with increasing aridity and with increasing atmospheric stability over the wetland. Occurrence of standing water at a site is likely to increase the appropriate time step of data integration, for a given level of accuracy. Occurrence of extensive open water can increase accuracy or decrease the required fetch by allowing the lower sensor to be placed at the water surface. If fetch is highly variable and fetch-induced errors are significant, the variables affecting fetch (e.g., wind direction, water level) need to be measured. Fetch-induced error during the non-growing season may be greater or smaller than during the growing season, depending on how seasonal changes affect both the wetland and upland at a site. JF - Wetlands AU - Stannard, DI AU - Rosenberry, DO AU - Winter, T C AU - Parkhurst, R S AD - U.S. Geological Survey Denver Federal Center, Mail Stop 413 Lakewood, Colorado, USA 80225, distanna@usgs.gov Y1 - 2004/09// PY - 2004 DA - Sep 2004 SP - 498 EP - 513 PB - The Society of Wetland Scientists VL - 24 IS - 3 SN - 0277-5212, 0277-5212 KW - Prairie-potholes KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Freshwater KW - Q2 02242:Observations and measurements at sea KW - SW 0830:Evaporation and transpiration UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17322180?accountid=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=Estimates+Of+Fetch-Induced+Errors+In+Bowen-Ratio+Energy-Budget+Measurements+Of+Evapotranspiration+From+A+Prairie+Wetland%2C+Cottonwood+Lake+Area%2C+North+Dakota%2C+USA&rft.au=Stannard%2C+DI%3BRosenberry%2C+DO%3BWinter%2C+T+C%3BParkhurst%2C+R+S&rft.aulast=Stannard&rft.aufirst=DI&rft.date=2004-09-01&rft.volume=24&rft.issue=3&rft.spage=498&rft.isbn=&rft.btitle=&rft.title=Wetlands&rft.issn=02775212&rft_id=info:doi/10.1043%2F0277-5212%282004%290242.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0277-5212&volume=24&page=498 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-07-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Freshwater DO - http://dx.doi.org/10.1043/0277-5212(2004)024<0498:EOFEIB>2.0.CO;2 ER - TY - JOUR T1 - Geochemical cycles in sediments deposited on the slopes of the Guaymas and Carmen Basins of the Gulf of California over the last 180 years AN - 17288854; 5979147 AB - Sediments deposited on the slopes of the Guaymas and Carmen Basins in the central Gulf of California were recovered in two box cores. Q-mode factor analyses identified detrital-clastic, carbonate, and redox associations in the elemental composition of these sediments. The detrital-clastic fraction appears to contain two source components, a more mafic component presumably derived from the Sierra Madre Occidental along the west coast of Mexico, and a more felsic component most likely derived from sedimentary rocks (mostly sandstones) of the Colorado Plateau and delivered by the Colorado River. The sediments also contain significant siliceous biogenic components and minor calcareous biogenic components, but those components were not quantified in this study. Redox associations were identified in both cores based on relatively high concentrations of molybdenum, which is indicative of deposition under conditions of sulfate reduction. Decreases in concentrations of molybdenum in younger sediments suggest that the bottom waters of the Gulf have became more oxygenated over the last 100 years. Many geochemical components in both box cores exhibit distinct cyclicity with periodicities of 10-20 years. The most striking are 20- year cycles in the more mafic components (e.g. titanium), particularly in sediments deposited during the 19th century. In that century, the titanium cycles are in very good agreement with warm phases of the Pacific Decadal Oscillation, implying that at times of greater influx of titanium-rich volcanic debris, there were more el Ninos and higher winter precipitation. The cycles are interpreted as due to greater and lesser riverine influx of volcanic rock debris from the Sierra Madre. There is also spectral evidence for periodicities of 4-8 and 8-16 years, suggesting that the delivery of detrital-clastic material is responding to some multiannual (ENSO?) forcing. JF - Quaternary Science Reviews AU - Dean, W AU - Pride, C AU - Thunell, R AD - US Geological Survey, MS 980 Federal Center, PO Box 25046, Denver, CO 80225, USA, dean@usgs.gov Y1 - 2004/09// PY - 2004 DA - September 2004 SP - 1817 EP - 1833 VL - 23 IS - 16-17 SN - 0277-3791, 0277-3791 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Oceanic Abstracts; Water Resources Abstracts KW - Sulfates KW - Sandstones KW - Sediment chemistry KW - Redox reactions KW - Titanium KW - Volcanic rocks KW - Fluvial Sediments KW - Molybdenum KW - USA, Colorado Plateau KW - Gulfs KW - USA, Colorado R. KW - Cores KW - Sedimentary rocks KW - Periodicity KW - ISE, Mexico, California Gulf KW - Slopes KW - Detritus KW - El Nino phenomena KW - SW 0835:Streamflow and runoff KW - Q2 09187:Geochemistry of sediments KW - O 3050:Sediment Dynamics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17288854?accountid=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+Science+Reviews&rft.atitle=Geochemical+cycles+in+sediments+deposited+on+the+slopes+of+the+Guaymas+and+Carmen+Basins+of+the+Gulf+of+California+over+the+last+180+years&rft.au=Dean%2C+W%3BPride%2C+C%3BThunell%2C+R&rft.aulast=Dean&rft.aufirst=W&rft.date=2004-09-01&rft.volume=23&rft.issue=16-17&rft.spage=1817&rft.isbn=&rft.btitle=&rft.title=Quaternary+Science+Reviews&rft.issn=02773791&rft_id=info:doi/10.1016%2Fj.quascirev.2004.03.010 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Redox reactions; Sediment chemistry; Titanium; Volcanic rocks; Molybdenum; Sedimentary rocks; Periodicity; El Nino phenomena; Sandstones; Sulfates; Cores; Fluvial Sediments; Slopes; Detritus; Gulfs; USA, Colorado R.; USA, Colorado Plateau; ISE, Mexico, California Gulf DO - http://dx.doi.org/10.1016/j.quascirev.2004.03.010 ER - TY - JOUR T1 - Vulnerability of Port and Harbor Communities to Earthquake and Tsunami Hazards: The Use of GIS in Community Hazard Planning AN - 16196564; 5981153 AB - Earthquakes and tsunamis pose significant threats to Pacific Northwest coastal port and harbor communities. Developing holistic mitigation and preparedness strategies to reduce the potential for loss of life and property damage requires community-wide vulnerability assessments that transcend traditional site-specific analyses. The ability of a geographic information system (GIS) to integrate natural, socioeconomic, and hazards information makes it an ideal assessment tool to support community hazard planning efforts. This article summarizes how GIS was used to assess the vulnerability of an Oregon port and harbor community to earthquake and tsunami hazards, as part of a larger risk-reduction planning initiative. The primary purposes of the GIS were to highlight community vulnerability issues and to identify areas that both are susceptible to hazards and contain valued port and harbor community resources. Results of the GIS analyses can help decision makers with limited mitigation resources set priorities for increasing community resiliency to natural hazards. JF - Coastal Management AU - Wood, N J AU - Good, J W AD - 345 Middlefied Road, MS 531, Menlo Park, CA 94025, USA, nwood@usgs.gov Y1 - 2004/09// PY - 2004 DA - Sep 2004 SP - 243 EP - 269 VL - 32 IS - 3 SN - 0892-0753, 0892-0753 KW - Emergency preparedness KW - Risk reduction KW - tsunamis KW - Risk Abstracts; Health & Safety Science Abstracts; Oceanic Abstracts; Sustainability Science Abstracts KW - Earthquakes KW - Mitigation KW - INE, USA, Washington KW - INE, USA, Pacific Northwest KW - Risks KW - Hazards KW - risk reduction KW - Planning KW - Regional planning KW - Tsunamis KW - Vulnerability KW - natural disasters KW - USA, Pacific Northwest KW - Geological hazards KW - Disasters KW - Harbours KW - Warning systems KW - INE, USA, Oregon KW - Decision making KW - Socio-economic aspects KW - Fishing harbours KW - Coastal zone KW - Health and safety KW - Geographic information systems KW - Harbors KW - Hazard assessment KW - H 6000:Natural Disasters/Civil Defense/Emergency Management KW - R2 23030:Natural hazards KW - O 6060:Coastal Zone Resources and Management KW - M3 1020:Measuring Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16196564?accountid=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=Coastal+Management&rft.atitle=Vulnerability+of+Port+and+Harbor+Communities+to+Earthquake+and+Tsunami+Hazards%3A+The+Use+of+GIS+in+Community+Hazard+Planning&rft.au=Wood%2C+N+J%3BGood%2C+J+W&rft.aulast=Wood&rft.aufirst=N&rft.date=2004-09-01&rft.volume=32&rft.issue=3&rft.spage=243&rft.isbn=&rft.btitle=&rft.title=Coastal+Management&rft.issn=08920753&rft_id=info:doi/10.1080%2F08920750490448622 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-09-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Earthquakes; Fishing harbours; Coastal zone; Geological hazards; Disasters; Regional planning; Health and safety; Vulnerability; Tsunamis; Warning systems; Harbours; Risks; Socio-economic aspects; Decision making; Mitigation; Planning; Geographic information systems; Hazard assessment; Hazards; risk reduction; natural disasters; Emergency preparedness; Harbors; INE, USA, Oregon; USA, Pacific Northwest; INE, USA, Washington; INE, USA, Pacific Northwest DO - http://dx.doi.org/10.1080/08920750490448622 ER - TY - JOUR T1 - Effects of trichloroethylene and perchloroethylene on wild rodents at Edwards Air Force Base, California, USA AN - 16191286; 6080221 AB - Effects of inhalation of volatilized trichloroethylene (TCE) or perchloroethylene (PCE) were assessed based on the health and population size of wild, burrowing mammals at Edwards Air Force Base (CA, USA). Organic soil-vapor concentrations were measured at three sites with aquifer contamination of TCE or PCE of 5.5 to 77 mg/L and at two uncontaminated reference sites. Population estimates of kangaroo rats (Dipodomys merriami and D. panamintinus) as well as hematology, blood chemistry, and histopathology of kangaroo rats and deer mice (Peromyscus maniculatus) were compared between contaminated and uncontaminated populations. Maximum soil-gas concentrations associated with groundwater contamination were less than 1.5 mu l/L of TCE and 0.07 mu l/L of PCE. Population estimates of kangaroo rats were similar at contaminated and reference sites. Hematology, blood chemistry, and histopathology of kangaroo rats and deer mice indicated no evidence of health effects caused by exposure. Trichloroethylene or PCE in groundwater and in related soil gas did not appear to reduce the size of small mammal populations or impair the health of individuals. JF - Environmental Toxicology and Chemistry AU - Spring, SE AU - Miles, A K AU - Anderson, MJ AD - US Geological Survey, Western Ecological Research Center, Davis Field Station, 1 Shields Avenue, University of California, Davis, California 95616, sarah_spring@usgs.gov Y1 - 2004/09// PY - 2004 DA - Sep 2004 SP - 2162 EP - 2169 VL - 23 IS - 9 SN - 0730-7268, 0730-7268 KW - Toxicology Abstracts; Pollution Abstracts KW - Aquifers KW - USA, California, Edwards Air Force Base KW - Wildlife KW - Histopathology KW - Peromyscus maniculatus KW - Dipodomys merriami KW - Population dynamics KW - Perchloroethylene KW - Blood levels KW - Groundwater pollution KW - Trichloroethylene KW - Tetrachloroethylene KW - Dipodomys panamintinus KW - X 24156:Environmental impact KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16191286?accountid=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+trichloroethylene+and+perchloroethylene+on+wild+rodents+at+Edwards+Air+Force+Base%2C+California%2C+USA&rft.au=Reddy%2C+Michael+M%3BReddy%2C+Micaela+B%3BReddy%2C+Carol+F&rft.aulast=Reddy&rft.aufirst=Michael&rft.date=2004-08-01&rft.volume=145&rft.issue=2&rft.spage=153&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+pediatrics&rft.issn=00223476&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-01-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Aquifers; Wildlife; Groundwater pollution; Histopathology; Tetrachloroethylene; Trichloroethylene; Population dynamics; Blood levels; Perchloroethylene; Peromyscus maniculatus; Dipodomys merriami; Dipodomys panamintinus; USA, California, Edwards Air Force Base ER - TY - JOUR T1 - Pesticides in mountain yellow-legged frogs (Rana muscosa) from the Sierra Nevada Mountains of California, USA AN - 16186173; 6080222 AB - In 1997, pesticide concentrations were measured in mountain yellow-legged frogs (Rana muscosa) from two areas in the Sierra Nevada Mountains of California, USA. One area (Sixty Lakes Basin, Kings Canyon National Park) had large, apparently healthy populations of frogs. A second area (Tablelands, Sequoia National Park) once had large populations, but the species had been extirpated from this area by the early 1980s. The Tablelands is exposed directly to prevailing winds from agricultural regions to the west. When an experimental reintroduction of R. muscosa in 1994 to 1995 was deemed unsuccessful in 1997, the last 20 (reintroduced) frogs that could be found were collected from the Tablelands, and pesticide concentrations in both frog tissue and the water were measured at both the Tablelands and at reference sites at Sixty Lakes. In frog tissues, dichlorodiphenyldichloroethylene (DDE) concentration was one to two orders of magnitude higher than the other organochlorines (46 plus or minus 20 ng/g wet wt at Tablelands and 17 plus or minus 8 Sixty Lakes). Both gamma -chlordane and trans-nonachlor were found in significantly greater concentrations in Tablelands frog tissues compared with Sixty Lakes. Organophosphate insecticides, chlorpyrifos, and diazinon were observed primarily in surface water with higher concentrations at the Tablelands sites. No contaminants were significantly higher in our Sixty Lakes samples. JF - Environmental Toxicology and Chemistry AU - Fellers, G M AU - McConnell, L L AU - Pratt, D AU - Datta, S AD - Western Ecological Research Center, U.S. Geological Survey, Point Reyes National Seashore, Point Reyes, California 94956, gary.fellers@usgs.gov Y1 - 2004/09// PY - 2004 DA - Sep 2004 SP - 2170 EP - 2177 VL - 23 IS - 9 SN - 0730-7268, 0730-7268 KW - Toxicology Abstracts; Aqualine Abstracts; Water Resources Abstracts; Pollution Abstracts KW - Tissues KW - Surface water KW - Pollution effects KW - Surface Water KW - Rana muscosa KW - Mountains KW - Lakes KW - Frogs KW - Insecticides KW - National Parks KW - Lake Basins KW - DDE KW - USA, California, Sierra Nevada Mts. KW - Water pollution KW - Bioaccumulation KW - Water Pollution Effects KW - Pesticides KW - Diazinon KW - P 2000:FRESHWATER POLLUTION KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of pollution KW - X 24136:Environmental impact UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16186173?accountid=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+and+Chemistry&rft.atitle=Pesticides+in+mountain+yellow-legged+frogs+%28Rana+muscosa%29+from+the+Sierra+Nevada+Mountains+of+California%2C+USA&rft.au=Fellers%2C+G+M%3BMcConnell%2C+L+L%3BPratt%2C+D%3BDatta%2C+S&rft.aulast=Fellers&rft.aufirst=G&rft.date=2004-09-01&rft.volume=23&rft.issue=9&rft.spage=2170&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 - 2005-01-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Mountains; Lakes; Bioaccumulation; Insecticides; Surface water; DDE; Pesticides; Pollution effects; Diazinon; Water pollution; Tissues; Frogs; National Parks; Water Pollution Effects; Surface Water; Lake Basins; Rana muscosa; USA, California, Sierra Nevada Mts. ER - TY - JOUR T1 - Restoration of Floodplain Forests for the Conservation of Migratory Landbirds AN - 16182705; 6038362 AB - Whether along the Lower Mississippi River or the Lower Rio Grande, restoration of floodplain woodlands dramatically increases the habitat and well-being of migratory birds. JF - Ecological Restoration AU - Twedt, D J AU - Best, C AD - USGS Patuxent Wildlife Research Center, 2524 South Frontage Rd., Vicksburg, MS 39180, USA, dan_twedt@usgs.gov Y1 - 2004/09// PY - 2004 DA - September 2004 SP - 194 EP - 203 VL - 22 IS - 3 SN - 1543-4060, 1543-4060 KW - Birds KW - ASFA 3: Aquatic Pollution & Environmental Quality; Sustainability Science Abstracts; Ecology Abstracts KW - Rivers KW - Forest management KW - Habitat availability KW - USA, New Mexico, Lower Rio Grande KW - Forests KW - Migration KW - Migratory birds KW - Aves KW - North America, Mississippi R. KW - Flood plains KW - Migratory species KW - Habitat improvement KW - Riparian environments KW - Conservation KW - Environmental restoration KW - Q5 08523:Conservation, wildlife management and recreation KW - D 04671:Birds KW - M3 1120:Land KW - D 04715:Reclamation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16182705?accountid=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+Restoration&rft.atitle=Restoration+of+Floodplain+Forests+for+the+Conservation+of+Migratory+Landbirds&rft.au=Twedt%2C+D+J%3BBest%2C+C&rft.aulast=Twedt&rft.aufirst=D&rft.date=2004-09-01&rft.volume=22&rft.issue=3&rft.spage=194&rft.isbn=&rft.btitle=&rft.title=Ecological+Restoration&rft.issn=15434060&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-08-01 N1 - Last updated - 2016-12-21 N1 - SubjectsTermNotLitGenreText - Flood plains; Migratory species; Habitat improvement; Rivers; Forest management; Habitat availability; Riparian environments; Forests; Environmental restoration; Conservation; Migration; Migratory birds; Aves; North America, Mississippi R.; USA, New Mexico, Lower Rio Grande ER - TY - JOUR T1 - Use of Radar Remote Sensing (RADARSAT) to Map Winter Wetland Habitat for Shorebirds in an Agricultural Landscape AN - 16182059; 6018726 AB - Many of today's agricultural landscapes once held vast amounts of wetland habitat for waterbirds and other wildlife. Successful restoration of these landscapes relies on access to accurate maps of the wetlands that remain. We used C-band (5.6-cm-wavelength), HH-polarized radar remote sensing (RADARSAT) at a 38 degree incidence angle (8-m resolution) to map the distribution of winter shorebird (Charadriiformes) habitat on agricultural lands in the Willamette Valley of western Oregon. We acquired imagery on three dates (10 December 1999, 27 January 2000, and 15 March 2000) and simultaneously collected ground reference data to classify radar signatures and evaluate map accuracy of four habitat classes: (1) wet with less than or equal to 50% vegetation (considered optimal shorebird habitat), (2) wet with > 50% vegetation, (3) dry with less than or equal to 50% vegetation, and (4) dry with > 50% vegetation. Overall accuracy varied from 45 to 60% among the three images, but the accuracy of focal class 1 was greater, ranging from 72 to 80%. Class 4 coverage was stable and dominated maps (40% of mapped study area) for all three dates, while coverage of class 3 decreased slightly throughout the study period. Among wet classes, class 1 was most abundant (about 30% coverage) in December and January, decreasing in March to approximately 15%. Conversely, class 2 increased dramatically from January to March, likely due to transition from class 1 as vegetation grew. This approach was successful in detecting optimal habitat for shorebirds on agricultural lands. For modest classification schemes, radar remote sensing is a valuable option for wetland mapping in areas where cloud cover is persistent. JF - Environmental Management AU - Taft, O W AU - Haig, S M AU - Kiilsgaard, C AD - USGS Forest and Rangeland Ecosystem Science Center, 3200 SW Jefferson Way, 97331, Corvallis, Oregon, USA, Oriane_Taft@usgs.gov Y1 - 2004/09// PY - 2004 DA - September 2004 SP - 750 EP - 763 PB - Springer-Verlag VL - 33 IS - 5 SN - 0364-152X, 0364-152X KW - Plovers KW - RADARSAT KW - Sandpipers KW - Shorebirds KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Ecology Abstracts; Water Resources Abstracts KW - Remote Sensing KW - Agriculture KW - Charadriiformes KW - Remote sensing KW - Maps KW - Winter KW - Habitats KW - Classification KW - Charadrii KW - Wetlands KW - Mapping KW - USA, Oregon KW - USA, Oregon, Willamette Valley KW - Agricultural ecosystems KW - Wildlife KW - Cloud Cover KW - Vegetation KW - Cloud cover KW - Habitat KW - Habitat improvement KW - Radar KW - Aquatic birds KW - Q5 08523:Conservation, wildlife management and recreation KW - P 9000:ENVIRONMENTAL ACTION KW - SW 5040:Data acquisition KW - D 04002:Surveying and remote sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16182059?accountid=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=Use+of+Radar+Remote+Sensing+%28RADARSAT%29+to+Map+Winter+Wetland+Habitat+for+Shorebirds+in+an+Agricultural+Landscape&rft.au=Taft%2C+O+W%3BHaig%2C+S+M%3BKiilsgaard%2C+C&rft.aulast=Taft&rft.aufirst=O&rft.date=2004-09-01&rft.volume=33&rft.issue=5&rft.spage=750&rft.isbn=&rft.btitle=&rft.title=Environmental+Management&rft.issn=0364152X&rft_id=info:doi/10.1007%2Fs00267-004-8920-8 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-09-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Agriculture; Classification; Habitat improvement; Remote sensing; Wetlands; Cloud cover; Mapping; Habitat; Aquatic birds; Winter; Agricultural ecosystems; Wildlife; Radar; Remote Sensing; Habitats; Cloud Cover; Vegetation; Maps; Charadriiformes; Charadrii; USA, Oregon, Willamette Valley; USA, Oregon DO - http://dx.doi.org/10.1007/s00267-004-8920-8 ER - TY - JOUR T1 - Contaminant Exposure and Effects in Red-Winged Blackbirds Inhabiting Stormwater Retention Ponds AN - 16178978; 6018722 AB - Stormwater wetlands are created to retain water from storms and snow melt to reduce sediment, nutrient, and contaminant pollution of natural waterways in metropolitan areas. However, they are often a source of attractive habitat to wetland-associated wildlife. In this study of 12 stormwater wetlands and a larger, older reference site, elevated concentrations of zinc and copper were found in sediments and carcasses of 8-day-old red-winged blackbird (Agelaius phoeniceus) nestlings inhabiting stormwater sites. Although nesting success in the stormwater wetlands was comparable to national averages, sediment zinc concentrations correlated with clutch size, hatching success, fledgling success, and Mayfield nest success, suggesting that the nestlings may have been stressed and impaired by elevated zinc. This stress may have been direct on the nestlings or indirect through effects on the availability of food organisms. JF - Environmental Management AU - Sparling, D W AU - Eisemann, J D AU - Kuenzel, W AD - USGS Patuxent Wildlife Research Center, 11510 American Holly Drive Laurel, Maryland 20708, USA Y1 - 2004/09// PY - 2004 DA - Sep 2004 SP - 719 EP - 729 PB - Springer-Verlag VL - 33 IS - 5 SN - 0364-152X, 0364-152X KW - Birds KW - Red-winged blackbird KW - Ecology Abstracts; Water Resources Abstracts; Pollution Abstracts KW - Agelaius phoeniceus KW - Wildlife KW - Stress KW - Toxicity KW - Copper KW - Habitat KW - Sediments KW - Ponds KW - Aves KW - Bioaccumulation KW - Pollutants KW - Water Pollution Effects KW - Zinc KW - Sediment Contamination KW - Wetlands KW - Waterways KW - D 04803:Pollution effects KW - P 2000:FRESHWATER POLLUTION KW - SW 3030:Effects of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16178978?accountid=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+Management&rft.atitle=Contaminant+Exposure+and+Effects+in+Red-Winged+Blackbirds+Inhabiting+Stormwater+Retention+Ponds&rft.au=Sparling%2C+D+W%3BEisemann%2C+J+D%3BKuenzel%2C+W&rft.aulast=Sparling&rft.aufirst=D&rft.date=2004-09-01&rft.volume=33&rft.issue=5&rft.spage=719&rft.isbn=&rft.btitle=&rft.title=Environmental+Management&rft.issn=0364152X&rft_id=info:doi/10.1007%2Fs00267-003-0058-6 L2 - http://link.springer.de/link/service/journals/00267/bibs/4033005/40330719.htm LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-09-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Bioaccumulation; Zinc; Wetlands; Copper; Ponds; Wildlife; Stress; Habitat; Pollutants; Water Pollution Effects; Sediment Contamination; Waterways; Toxicity; Sediments; Aves; Agelaius phoeniceus DO - http://dx.doi.org/10.1007/s00267-003-0058-6 ER - TY - JOUR T1 - Estimating Survival and Breeding Probability for Pond-Breeding Amphibians: A Modified Robust Design AN - 16177981; 6027783 AB - Many studies of pond-breeding amphibians involve sampling individuals during migration to and from breeding habitats. Interpreting population processes and dynamics from these studies is difficult because (1) only a proportion of the population is observable each season, while an unknown proportion remains unobservable (e.g., non-breeding adults) and (2) not all observable animals are captured. Imperfect capture probability can be easily accommodated in capture-recapture models, but temporary transitions between observable and unobservable states, often referred to as temporary emigration, is known to cause problems in both open- and closed-population models. We develop a multistate mark-recapture (MSMR) model, using an open-robust design that permits one entry and one exit from the study area per season. Our method extends previous temporary emigration models (MSMR with an unobservable state) in two ways. First, we relax the assumption of demographic closure (no mortality) between consecutive (secondary) samples, allowing estimation of within-pond survival. Also, we add the flexibility to express survival probability of unobservable individuals (e.g., "non-breeders") as a function of the survival probability of observable animals while in the same, terrestrial habitat. This allows for potentially different annual survival probabilities for observable and unobservable animals. We apply our model to a relictual population of eastern tiger salamanders (Ambystoma tigrinum tigrinum). Despite small sample sizes, demographic parameters were estimated with reasonable precision. We tested several a priori biological hypotheses and found evidence for seasonal differences in pond survival. Our methods could be applied to a variety of pond-breeding species and other taxa where individuals are captured entering or exiting a common area (e.g., spawning or roosting area, hibernacula). JF - Ecology AU - Bailey, L L AU - Kendall, W L AU - Church AU - Wilbur, H M AD - USGS Patuxent Wildlife Research Center, Laurel, Maryland 20708-4017, USA Y1 - 2004/09// PY - 2004 DA - Sep 2004 SP - 2456 EP - 2466 PB - Ecological Society of America VL - 85 IS - 9 SN - 0012-9658, 0012-9658 KW - Eastern tiger salamander KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Amphibiotic species KW - Ambystoma tigrinum tigrinum KW - Survival KW - Population dynamics KW - Ponds KW - Tracking KW - Breeding KW - Migrations KW - Body size KW - Ambystoma tigrinum KW - Mortality causes KW - Q1 08421:Migrations and rhythms KW - D 04669:Amphibians UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16177981?accountid=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=Estimating+Survival+and+Breeding+Probability+for+Pond-Breeding+Amphibians%3A+A+Modified+Robust+Design&rft.au=Bailey%2C+L+L%3BKendall%2C+W+L%3BChurch%3BWilbur%2C+H+M&rft.aulast=Bailey&rft.aufirst=L&rft.date=2004-09-01&rft.volume=85&rft.issue=9&rft.spage=2456&rft.isbn=&rft.btitle=&rft.title=Ecology&rft.issn=00129658&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-03-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Amphibiotic species; Body size; Migrations; Survival; Population dynamics; Tracking; Mortality causes; Ponds; Breeding; Ambystoma tigrinum tigrinum; Ambystoma tigrinum ER - TY - JOUR T1 - Effects of lead-contaminated sediment and nutrition on mallard duckling brain growth and biochemistry AN - 16177817; 5970485 AB - Day-old mallard (Anas platyryhnchos) ducklings received either a clean sediment (24%) supplemented control diet, Coeur d'Alene River Basin, Idaho (CDARB) sediment (3449 mu g/g lead) supplemented diets at 12% or 24%, or a positive control diet (24% clean sediment with equivalent lead acetate to the 24% CDARB diet) for 6 weeks. The 12% CDARB diet resulted in a geometric mean concentration of 396 ppb (WW) brain lead with decreased brain protein and ATP concentrations but increased oxidized glutathione (GSSG) relative to the control diet. The 24% CDARB diet resulted in a concentration of 485 ppb brain lead with lower brain weight and ATP concentration than controls but higher concentrations of reduced glutathione (GSH) and calcium. Lead acetate accumulated twice as well as CDARB derived lead and resulted in histopathological lesions of the brain. With a combination of a suboptimal diet and 24% CDARB, brain lead concentration was higher (594 ppb) than with 24% CDARB in the standard diet, histopathological lesions became apparent and GSH was higher than suboptimal diet controls. JF - Environmental Pollution AU - Douglas-Stroebel, E AU - Hoffman, D J AU - Brewer, G L AU - Sileo, L AD - Department of Biology, Frostburg State University, Frostburg, MD 21532, USA, david_hoffman@usgs.gov Y1 - 2004/09// PY - 2004 DA - September 2004 SP - 215 EP - 222 PB - Elsevier Science Ltd., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:nlinfo-f@elsevier.nl] VL - 131 IS - 2 SN - 0269-7491, 0269-7491 KW - Mallard KW - Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Pollution Abstracts; Toxicology Abstracts KW - Mallard duckling KW - Lead-contaminated sediment KW - Brain growth KW - Biochemistry KW - Oxidative stress KW - River Basins KW - Heavy metals KW - Histopathology KW - Lead KW - Anas platyrhynchos KW - Sediment Contamination KW - Diets KW - Brain KW - River basins KW - Water Pollution Effects KW - Acetate KW - Birds KW - Toxicity testing KW - Aquatic birds KW - Pollution effects KW - USA, Idaho, Coeur d'Alene R. KW - Nutrition KW - Growth KW - Coenzymes KW - Sediment pollution KW - ATP KW - Toxicity KW - Sediments KW - Water pollution KW - Ducks 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/16177817?accountid=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=Effects+of+lead-contaminated+sediment+and+nutrition+on+mallard+duckling+brain+growth+and+biochemistry&rft.au=Douglas-Stroebel%2C+E%3BHoffman%2C+D+J%3BBrewer%2C+G+L%3BSileo%2C+L&rft.aulast=Douglas-Stroebel&rft.aufirst=E&rft.date=2004-09-01&rft.volume=131&rft.issue=2&rft.spage=215&rft.isbn=&rft.btitle=&rft.title=Environmental+Pollution&rft.issn=02697491&rft_id=info:doi/10.1016%2Fj.envpol.2004.02.002 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-10-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Biochemistry; Acetate; Brain; Histopathology; ATP; River basins; Coenzymes; Nutrition; Water pollution; Aquatic birds; Growth; Heavy metals; Sediments; Lead; Diets; Pollution effects; Toxicity testing; River Basins; Ducks; Water Pollution Effects; Sediment Contamination; Toxicity; Birds; Anas platyrhynchos; USA, Idaho, Coeur d'Alene R. DO - http://dx.doi.org/10.1016/j.envpol.2004.02.002 ER - TY - JOUR T1 - Geochemistry of shallow ground water in coastal plain environments in the southeastern United States: implications for aquifer susceptibility AN - 16176840; 5938171 AB - Ground-water chemistry data from coastal plain environments have been examined to determine the geochemical conditions and processes that occur in these areas and assess their implications for aquifer susceptibility. Two distinct geochemical environments were studied to represent a range of conditions: an inner coastal plain setting having more well-drained soils and lower organic carbon (C) content and an outer coastal plain environment that has more poorly drained soils and high organic C content. Higher concentrations of most major ions and dissolved inorganic and organic C in the outer coastal plain setting indicate a greater degree of mineral dissolution and organic matter oxidation. Accordingly, outer coastal plain waters are more reducing than inner coastal plain waters. Low dissolved oxygen (O sub(2)) and nitrate (NO sub(3) super(-)) concentrations and high iron (Fe) concentrations indicate that ferric iron (Fe (III)) is an important electron acceptor in this setting, while dissolved O sub(2) is the most common terminal electron acceptor in the inner coastal plain setting. The presence of a wide range of redox conditions in the shallow aquifer system examined here underscores the importance of providing a detailed geochemical characterization of ground water when assessing the intrinsic susceptibility of coastal plain settings. The greater prevalence of aerobic conditions in the inner coastal plain setting makes this region more susceptible to contamination by constituents that are more stable under these conditions and is consistent with the significantly (p<0.05) higher concentrations of NO sub(3) super(-) found in this setting. Herbicides and their transformation products were frequently detected (36% of wells sampled), however concentrations were typically low (<0.1 mu g/L). Shallow water table depths often found in coastal plain settings may result in an increased risk of the detection of pesticides (e.g. alachlor) that degrade rapidly in the unsaturated zone. JF - Applied Geochemistry AU - Tesoriero, A J AU - Spruill, T B AU - Eimers, J L AD - US Geological Survey, 3916 Sunset Ridge Road, Raleigh, NC 27607, USA, tesorier@usgs.gov Y1 - 2004/09// PY - 2004 DA - September 2004 SP - 1471 EP - 1482 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl] VL - 19 IS - 9 SN - 0883-2927, 0883-2927 KW - Water Resources Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Contamination KW - Organic carbon KW - Dissolved oxygen KW - Organic Matter KW - Oxic conditions KW - Organic Carbon KW - Coastal zone KW - Oxidation KW - Groundwater KW - Iron KW - Aquifers KW - Aeration Zone KW - Coastal Plains KW - Groundwater Pollution KW - USA, Southeast KW - Environmental factors KW - Water Depth KW - Ground water KW - Redox reactions KW - Nitrates KW - Organic matter KW - Geochemistry KW - Dissolved Oxygen KW - Alachlor KW - Herbicides KW - Shallow water KW - Pesticides KW - Aquifer Systems KW - Minerals 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/16176840?accountid=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=Geochemistry+of+shallow+ground+water+in+coastal+plain+environments+in+the+southeastern+United+States%3A+implications+for+aquifer+susceptibility&rft.au=Tesoriero%2C+A+J%3BSpruill%2C+T+B%3BEimers%2C+J+L&rft.aulast=Tesoriero&rft.aufirst=A&rft.date=2004-09-01&rft.volume=19&rft.issue=9&rft.spage=1471&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/10.1016%2Fj.apgeochem.2004.01.021 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-02-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Redox reactions; Oxic conditions; Organic matter; Geochemistry; Organic carbon; Herbicides; Environmental factors; Dissolved oxygen; Coastal zone; Shallow water; Pesticides; Ground water; Iron; Aquifers; Nitrates; Groundwater; Aeration Zone; Coastal Plains; Contamination; Organic Carbon; Dissolved Oxygen; Alachlor; Groundwater Pollution; Organic Matter; Oxidation; Water Depth; Aquifer Systems; Minerals; USA, Southeast DO - http://dx.doi.org/10.1016/j.apgeochem.2004.01.021 ER - TY - JOUR T1 - Disturbance, Herbivory, and Propagule Dispersal Control Dominance of an Invasive Grass AN - 1034827033; 17024094 AB - Despite the dramatic changes invasive plants cause to ecosystems and communities, factors that control dominance of invasive species after establishment in a community are poorly understood. Most active management relies on catastrophic disturbances of invasive-dominated communities to increase richness and diversity of plant communities. This study examines the importance of propagule dispersal and deer herbivory on continued dominance of Phalaris arundinacea after a non-catastrophic, short-term disturbance to monotypic stands of this invasive grass. The disturbance caused no change in P. arundinacea cover among treatments during any year of the study and, thus, simulates disturbance intensity more likely to be encountered in unmanaged settings. Despite the small disturbance, the combinations of disturbance + seeding and disturbance + seeding + deer exclusion caused greater species richness than controls even three years after disturbance. Increased invasion of P. arundinacea stands caused few effects on the dominant, as P. arundinacea biomass was unaffected after the first year. Selective herbivory by deer of species other than P. arundinacea increased the effects of disturbance and seeding, and aided in continued dominance of the grass. The tolerance of P. arundinacea for direct anthropogenic effects, including poor water quality and hydroperiod fluctuations, and indirect effects, such as increased herbivory by historically high deer populations, indicates the complexity of determining persistence of invasive species. JF - Biological Invasions AU - Kellogg, Chev H AU - Bridgham, Scott D AD - Department of Biological Sciences, University of Notre Dame,Forest and Rangeland Ecosystem Science Center, Notre Dame, IN, 46556-0369, USA, 3200 SW Jefferson Way, Corvallis, OR, 97331, USA, chev_kellogg@usgs.gov Y1 - 2004/09// PY - 2004 DA - Sep 2004 SP - 319 EP - 329 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 6 IS - 3 SN - 1387-3547, 1387-3547 KW - Sustainability Science Abstracts; Ecology Abstracts KW - Deer KW - Dispersal KW - Disturbance KW - Dominance KW - Grasses KW - Herbivory KW - Invasions KW - Invasive species KW - Seeding KW - Phalaris arundinacea KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1034827033?accountid=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=Biological+Invasions&rft.atitle=Disturbance%2C+Herbivory%2C+and+Propagule+Dispersal+Control+Dominance+of+an+Invasive+Grass&rft.au=Kellogg%2C+Chev+H%3BBridgham%2C+Scott+D&rft.aulast=Kellogg&rft.aufirst=Chev&rft.date=2004-09-01&rft.volume=6&rft.issue=3&rft.spage=319&rft.isbn=&rft.btitle=&rft.title=Biological+Invasions&rft.issn=13873547&rft_id=info:doi/10.1023%2FB%3ABINV.0000034606.84830.d5 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-08-01 N1 - Last updated - 2012-10-08 N1 - SubjectsTermNotLitGenreText - Grasses; Herbivory; Invasive species; Invasions; Seeding; Dispersal; Disturbance; Deer; Dominance; Phalaris arundinacea DO - http://dx.doi.org/10.1023/B:BINV.0000034606.84830.d5 ER - TY - JOUR T1 - Persistence of pharmaceutical compounds and other organic wastewater contaminants in a conventional drinking-water-treatment plant. AN - 66722572; 15262161 AB - In a study conducted by the US Geological Survey and the Centers for Disease Control and Prevention, 24 water samples were collected at selected locations within a drinking-water-treatment (DWT) facility and from the two streams that serve the facility to evaluate the potential for wastewater-related organic contaminants to survive a conventional treatment process and persist in potable-water supplies. Stream-water samples as well as samples of raw, settled, filtered, and finished water were collected during low-flow conditions, when the discharge of effluent from upstream municipal sewage-treatment plants accounted for 37-67% of flow in stream 1 and 10-20% of flow in stream 2. Each sample was analyzed for 106 organic wastewater-related contaminants (OWCs) that represent a diverse group of extensively used chemicals. Forty OWCs were detected in one or more samples of stream water or raw-water supplies in the treatment plant; 34 were detected in more than 10% of these samples. Several of these compounds also were frequently detected in samples of finished water; these compounds include selected prescription and non-prescription drugs and their metabolites, fragrance compounds, flame retardants and plasticizers, cosmetic compounds, and a solvent. The detection of these compounds suggests that they resist removal through conventional water-treatment processes. Other compounds that also were frequently detected in samples of stream water and raw-water supplies were not detected in samples of finished water; these include selected prescription and non-prescription drugs and their metabolites, disinfectants, detergent metabolites, and plant and animal steroids. The non-detection of these compounds indicates that their concentrations are reduced to levels less than analytical detection limits or that they are transformed to degradates through conventional DWT processes. Concentrations of OWCs detected in finished water generally were low and did not exceed Federal drinking-water standards or lifetime health advisories, although such standards or advisories have not been established for most of these compounds. Also, at least 11 and as many as 17 OWCs were detected in samples of finished water. Drinking-water criteria currently are based on the toxicity of individual compounds and not combinations of compounds. Little is known about potential human-health effects associated with chronic exposure to trace levels of multiple OWCs through routes such as drinking water. The occurrence in drinking-water supplies of many of the OWCs analyzed for during this study is unregulated and most of these compounds have not been routinely monitored for in the Nation's source- or potable-water supplies. This study provides the first documentation that many of these compounds can survive conventional water-treatment processes and occur in potable-water supplies. It thereby provides information that can be used in setting research and regulatory priorities and in designing future monitoring programs. The results of this study also indicate that improvements in water-treatment processes may benefit from consideration of the response of OWCs and other trace organic contaminants to specific physical and chemical treatments. JF - The Science of the total environment AU - Stackelberg, Paul E AU - Furlong, Edward T AU - Meyer, Michael T AU - Zaugg, Steven D AU - Henderson, Alden K AU - Reissman, Dori B AD - US Geological Survey, 810 Bear Tavern Road, West Trenton, NJ 08628, USA. pestack@usgs.gov Y1 - 2004/08/15/ PY - 2004 DA - 2004 Aug 15 SP - 99 EP - 113 VL - 329 IS - 1-3 SN - 0048-9697, 0048-9697 KW - Organic Chemicals KW - 0 KW - Pharmaceutical Preparations KW - Water Pollutants, Chemical KW - Index Medicus KW - Environmental Monitoring KW - Environment KW - Public Health KW - Humans KW - Organic Chemicals -- analysis KW - Risk Assessment KW - Water Supply -- standards KW - Water Pollutants, Chemical -- analysis KW - Waste Disposal, Fluid KW - Pharmaceutical Preparations -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66722572?accountid=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=Persistence+of+pharmaceutical+compounds+and+other+organic+wastewater+contaminants+in+a+conventional+drinking-water-treatment+plant.&rft.au=Stackelberg%2C+Paul+E%3BFurlong%2C+Edward+T%3BMeyer%2C+Michael+T%3BZaugg%2C+Steven+D%3BHenderson%2C+Alden+K%3BReissman%2C+Dori+B&rft.aulast=Stackelberg&rft.aufirst=Paul&rft.date=2004-08-15&rft.volume=329&rft.issue=1-3&rft.spage=99&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 - 2004-09-10 N1 - Date created - 2004-07-20 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Comment In: Sci Total Environ. 2005 Nov 1;350(1-3):273-5 [15922409] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Escherichia coli Sampling Reliability at a Frequently Closed Chicago Beach: Monitoring and Management Implications AN - 20126399; 6057099 AB - Monitoring beaches for recreational water quality is becoming more common, but few sampling designs or policy approaches have evaluated the efficacy of monitoring programs. The authors intensively sampled water for E. coli (N=1770) at 63rd Street Beach, Chicago for 6 months in 2000 in order to (1) characterize spatial-temporal trends, (2) determine between and within transect variation, and (3) estimate sample size requirements and determine sampling reliability. E. coli counts were highly variable within and between sampling sites but spatially and diurnally autocorrelated. Variation in counts decreased with water depth and time of day. Required number of samples was high for 70% precision around the critical closure level (i.e., 6 within or 24 between transect replicates). Since spatial replication may be cost prohibitive, composite sampling is an alternative once sources of error have been well defined. The results suggest that beach monitoring programs may be requiring too few samples to fulfill management objectives desired. As the recreational water quality national database is developed, it is important that sampling strategies are empirically derived from a thorough understanding of the sources of variation and the reliability of collected data. Greater monitoring efficacy will yield better policy decisions, risk assessments, programmatic goals, and future usefulness of the information. JF - Environmental Science & Technology AU - Whitman, R L AU - Nevers, M B AD - U.S. Geological Survey, Great Lakes Science Center, Lake Michigan Ecological Research Station, 1100 North Mineral Springs Road, Porter, Indiana 46304, USA, Richard_Whitman@usgs.gov Y1 - 2004/08/15/ PY - 2004 DA - 2004 Aug 15 SP - 4241 EP - 4246 VL - 38 IS - 16 SN - 0013-936X, 0013-936X KW - Microbiology Abstracts B: Bacteriology; Pollution Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Aqualine Abstracts; Health & Safety Science Abstracts; Water Resources Abstracts KW - Assessments KW - USA, Illinois, Chicago KW - Recreation areas KW - Escherichia coli KW - Sampling KW - H 3000:Environment and Ecology KW - P 2000:FRESHWATER POLLUTION KW - SW 3010:Identification of pollutants KW - A 01108:Other water systems KW - AQ 00002:Water Quality KW - J 02450:Ecology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20126399?accountid=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=Escherichia+coli+Sampling+Reliability+at+a+Frequently+Closed+Chicago+Beach%3A+Monitoring+and+Management+Implications&rft.au=Whitman%2C+R+L%3BNevers%2C+M+B&rft.aulast=Whitman&rft.aufirst=R&rft.date=2004-08-15&rft.volume=38&rft.issue=16&rft.spage=4241&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes034978i LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-03-01 N1 - Last updated - 2014-02-11 N1 - SubjectsTermNotLitGenreText - Sampling; Recreation areas; Escherichia coli; USA, Illinois, Chicago DO - http://dx.doi.org/10.1021/es034978i ER - TY - JOUR T1 - Mercury Speciation and Microbial Transformations in Mine Wastes, Stream Sediments, and Surface Waters at the Almaden Mining District, Spain AN - 16179545; 6057105 AB - Speciation of Hg and conversion to methyl-Hg were evaluated in mine wastes, sediments, and water collected from the Almaden District, Spain, the world's largest Hg producing region. Our data for methyl-Hg, a neurotoxin hazardous to humans, are the first reported for sediment and water from the Almaden area. Concentrations of Hg and methyl-Hg in mine waste, sediment, and water from Almaden are among the highest found at Hg mines worldwide. Mine wastes from Almaden contain highly elevated Hg concentrations, ranging from 160 to 34 000 mu g/g, and methyl-Hg varies from <0.20 to 3100 ng/g. Isotopic tracer methods indicate that mine wastes at one site (Almadenejos) exhibit unusually high rates of Hg-methylation, which correspond with mine wastes containing the highest methyl-Hg concentrations. Streamwater collected near the Almaden mine is also contaminated, containing Hg as high as 13 000 ng/L and methyl-Hg as high as 30 ng/L; corresponding stream sediments contain Hg concentrations as high as 2300 mu g/g and methyl-Hg concentrations as high as 82 ng/g. Several streamwaters contain Hg concentrations in excess of the 1000 ng/L World Health Organization (WHO) drinking water standard. Methyl-Hg formation and degradation was rapid in mines wastes and stream sediments demonstrating the dynamic nature of Hg cycling. These data indicate substantial downstream transport of Hg from the Almaden mine and significant conversion to methyl-Hg in the surface environment. JF - Environmental Science & Technology AU - Gray, JE AU - Hines, ME AU - Higueras, P L AU - Adatto, I AU - Lasorsa, B K AD - U.S. Geological Survey, P.O. Box 25046, MS 973, Denver, Colorado 80225, USA, jgray@usgs.gov Y1 - 2004/08/15/ PY - 2004 DA - 2004 Aug 15 SP - 4285 EP - 4292 VL - 38 IS - 16 SN - 0013-936X, 0013-936X KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources; Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Transformation KW - Water Pollution KW - Surface Water KW - Freshwater KW - Water quality KW - Chemical speciation KW - Sediment Contamination KW - Wastes KW - Mines KW - Mercury KW - Mine Wastes KW - Standards KW - Mining KW - Speciation KW - Pollution monitoring KW - Degradation KW - Surface water KW - Spain KW - Streams KW - Tracers KW - Drinking Water KW - Mining wastes KW - Downstream KW - Sediment pollution KW - Methyl mercury KW - Water quality standards KW - Sediments KW - Water pollution KW - Isotopic Tracers KW - Drinking water KW - Neurotoxins KW - Q5 08503:Characteristics, behavior and fate KW - AQ 00007:Industrial Effluents KW - P 2000:FRESHWATER POLLUTION KW - A 01056:Mineral microbiology 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/16179545?accountid=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=Mercury+Speciation+and+Microbial+Transformations+in+Mine+Wastes%2C+Stream+Sediments%2C+and+Surface+Waters+at+the+Almaden+Mining+District%2C+Spain&rft.au=Gray%2C+JE%3BHines%2C+ME%3BHigueras%2C+P+L%3BAdatto%2C+I%3BLasorsa%2C+B+K&rft.aulast=Gray&rft.aufirst=JE&rft.date=2004-08-15&rft.volume=38&rft.issue=16&rft.spage=4285&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes040359d LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-09-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Methyl mercury; Pollution monitoring; Tracers; Sediment pollution; Surface water; Chemical speciation; Wastes; Mercury; Mining; Neurotoxins; Water quality; Water pollution; Transformation; Speciation; Drinking water; Mines; Sediments; Mining wastes; Water quality standards; Water Pollution; Drinking Water; Degradation; Isotopic Tracers; Sediment Contamination; Downstream; Standards; Mine Wastes; Surface Water; Streams; Spain; Freshwater DO - http://dx.doi.org/10.1021/es040359d ER - TY - JOUR T1 - Achieving environmentally relevant organochlorine pesticide concentrations in eggs through maternal exposure in Alligator mississippiensis. AN - 71989490; 15178124 AB - Alligator mississippiensis eggs from organochlorine pesticide (OCP) contaminated sites in Florida exhibit high rates of embryonic mortality compared to reference sites (P < 0.05). The objective of the present study was to use captive adult alligators to test the hypotheses that maternal exposure to OCPs results in increased OCP concentrations in eggs, and that increased exposure is associated with increased embryonic mortality. A total of 24 adult alligators (8 males and 16 females) were housed in eight pens. Eight females in four pens were dosed with a mixture of p,p'-DDE, toxaphene, dieldrin, and chlordane at a rate of 0.2+/-0.01 mg/kg/day for 274+/-8 days. Treated females produced eggs containing higher OCP concentrations (12,814+/-813 ng/g yolk) than controls (38+/-4 ng/g yolk). Eggs of treated females exhibited decreased viability (13+/-22%) as compared to controls (45+/-20%). Results indicated that 0.6% of administered OCPs were maternally transferred to the eggs of American alligators, and that maternal exposure is associated with decreased egg/embryo viability in this species. JF - Marine environmental research AU - Rauschenberger, R Heath AU - Wiebe, Jon J AU - Buckland, Janet E AU - Smith, J Travis AU - Sepúlveda, Maria S AU - Gross, Timothy S AD - USGS-BRD Florida Integrated Science Center, Center for Aquatic Resource Studies, Gainesville, FL 32653, USA. heath_rauschenberger@usgs.gov PY - 2004 SP - 851 EP - 856 VL - 58 IS - 2-5 SN - 0141-1136, 0141-1136 KW - Hydrocarbons, Chlorinated KW - 0 KW - Insecticides KW - Index Medicus KW - Injections, Intraperitoneal KW - Mortality KW - Animals KW - Fresh Water KW - Injections, Intramuscular KW - Gas Chromatography-Mass Spectrometry KW - Tissue Distribution KW - Florida KW - Male KW - Female KW - Insecticides -- toxicity KW - Alligators and Crocodiles -- metabolism KW - Alligators and Crocodiles -- physiology KW - Reproduction -- drug effects KW - Insecticides -- administration & dosage KW - Insecticides -- pharmacokinetics KW - Ovum -- metabolism KW - Maternal Exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71989490?accountid=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=Marine+environmental+research&rft.atitle=Achieving+environmentally+relevant+organochlorine+pesticide+concentrations+in+eggs+through+maternal+exposure+in+Alligator+mississippiensis.&rft.au=Rauschenberger%2C+R+Heath%3BWiebe%2C+Jon+J%3BBuckland%2C+Janet+E%3BSmith%2C+J+Travis%3BSep%C3%BAlveda%2C+Maria+S%3BGross%2C+Timothy+S&rft.aulast=Rauschenberger&rft.aufirst=R&rft.date=2004-08-01&rft.volume=58&rft.issue=2-5&rft.spage=851&rft.isbn=&rft.btitle=&rft.title=Marine+environmental+research&rft.issn=01411136&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-08-30 N1 - Date created - 2004-06-04 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Biotransformation of tributyltin to tin in freshwater river-bed sediments contaminated by an organotin release. AN - 66848253; 15352448 AB - The largest documented release of organotin compounds to a freshwater river system in the United States occurred in early 2000 in central South Carolina. The release consisted of an unknown volume of various organotin compounds such tetrabutyltin (TTBT), tributyltin (TBT), tetraoctyltin (TTOT), and trioctyl tin (TOT) and resulted in a massive fish kill and the permanent closures of a municipal wastewater treatment plant and a local city's only drinking-water intake. Initial sampling events in 2000 and 2001 indicated that concentrations of the ecologically toxic TTBT and TBT were each greater than 10 000 microg/kg in surface-water bed sediments in depositional areas, such as lakes and beaver ponds downstream of the release. Bed-sediment samples collected between 2001 and 2003, however, revealed a substantial decrease in bed-sediment organotin concentrations and an increase in concentrations of degradation intermediate compounds. For example, in bed sediments of a representative beaver pond located about 1.6 km downstream of the release, total organotin concentrations [the sum of TTBT, TBT, and the TBT degradation intermediates dibutyltin (DBT) and monobutyltin (MBT)] decreased from 38 670 to 298 microg/kg. In Crystal Lake, a large lake about 0.4 km downstream from the beaver pond, total organotin concentrations decreased from 28 300 to less than 5 microg/kg during the same time period. Moreover, bed-sediment inorganic tin concentrations increased from pre-release levels of less than 800 to 32 700 microg/kg during this time. These field data suggest that the released organotin compounds, such as TBT, are being transformed into inorganic tin by bed-sediment microbial processes. Microcosms were created in the laboratory that contained bed sediment from the two sites and were amended with tributyltin (as tributyltin chloride) under an ambient air headspace and sacrificially analyzed periodically for TBT, the biodegradation intermediates DBT and MBT, and tin. TBT concentrations decreased faster [half-life (t1/2) = 28 d] in the organic-rich sediments (21.5%) that characterized the beaver pond as compared to the slower (t1/2 = 78 d) degradation rate in the sandy, organic-poor, sediments (0.43%) of Crystal Lake. Moreover, the concentration of inorganic tin increased in microcosms containing bed sediments from both locations. These field and laboratory results suggest that biotransformation of the released organotins, in particular the ecologically detrimental TBT, does occur in this fresh surface-water system impacted with high concentrations of neat organotin compounds. JF - Environmental science & technology AU - Landmeyer, James E AU - Tanner, Terry L AU - Watt, Bruce E AD - U.S. Geological Survey, 720 Gracern Road, Suite 129, Columbia, South Carolina 29210, USA. jlandmey@usgs.gov Y1 - 2004/08/01/ PY - 2004 DA - 2004 Aug 01 SP - 4106 EP - 4112 VL - 38 IS - 15 SN - 0013-936X, 0013-936X KW - Organotin Compounds KW - 0 KW - Trialkyltin Compounds KW - Water Pollutants, Chemical KW - tributyltin KW - 4XDX163P3D KW - Tin KW - 7440-31-5 KW - Index Medicus KW - Rivers KW - Environmental Monitoring KW - Half-Life KW - South Carolina KW - Biodegradation, Environmental KW - Organotin Compounds -- analysis KW - Geologic Sediments -- chemistry KW - Organotin Compounds -- metabolism KW - Water Pollutants, Chemical -- analysis KW - Tin -- analysis KW - Geologic Sediments -- microbiology KW - Trialkyltin Compounds -- metabolism KW - Tin -- metabolism KW - Water Pollutants, Chemical -- metabolism KW - Trialkyltin Compounds -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66848253?accountid=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=Environmental+science+%26+technology&rft.atitle=Biotransformation+of+tributyltin+to+tin+in+freshwater+river-bed+sediments+contaminated+by+an+organotin+release.&rft.au=Landmeyer%2C+James+E%3BTanner%2C+Terry+L%3BWatt%2C+Bruce+E&rft.aulast=Landmeyer&rft.aufirst=James&rft.date=2004-08-01&rft.volume=38&rft.issue=15&rft.spage=4106&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 completed - 2005-01-31 N1 - Date created - 2004-09-08 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Scientific advances provide opportunities to improve pediatric environmental health. AN - 66767502; 15289759 JF - The Journal of pediatrics AU - Reddy, Michael M AU - Reddy, Micaela B AU - Reddy, Carol F AD - Water Resources Discipline, United States Geological Survey, Denver Federal Center, Lakewood, Colorado 80225, USA. mmreddy@usgs.gov Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 153 EP - 156 VL - 145 IS - 2 SN - 0022-3476, 0022-3476 KW - Environmental Pollutants KW - 0 KW - Abridged Index Medicus KW - Index Medicus KW - Infant KW - Humans KW - Child KW - Environmental Monitoring KW - Child Welfare UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66767502?accountid=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+Journal+of+pediatrics&rft.atitle=Scientific+advances+provide+opportunities+to+improve+pediatric+environmental+health.&rft.au=Reddy%2C+Michael+M%3BReddy%2C+Micaela+B%3BReddy%2C+Carol+F&rft.aulast=Reddy&rft.aufirst=Michael&rft.date=2004-08-01&rft.volume=145&rft.issue=2&rft.spage=153&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+pediatrics&rft.issn=00223476&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-10-26 N1 - Date created - 2004-08-03 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Comment In: J Pediatr. 2004 Aug;145(2):145-7 [15289755] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Nonlethal development, validation, and application of cytochrome P4501A1 (CYP1A1) as a biomarker for contaminant exposure. AN - 66743019; 15274246 JF - Toxicological sciences : an official journal of the Society of Toxicology AU - Melancon, Mark J AD - USGS Patuxent Wildlife Research Center, Beltsville Lab, Maryland 20705, USA. Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 216 EP - 217 VL - 80 IS - 2 SN - 1096-6080, 1096-6080 KW - Biomarkers KW - 0 KW - Water Pollutants, Chemical KW - Cytochrome P-450 CYP1A1 KW - EC 1.14.14.1 KW - Index Medicus KW - Animals KW - Reproducibility of Results KW - Water Pollutants, Chemical -- toxicity KW - Cytochrome P-450 CYP1A1 -- metabolism KW - Cetacea -- physiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66743019?accountid=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=Toxicological+sciences+%3A+an+official+journal+of+the+Society+of+Toxicology&rft.atitle=Nonlethal+development%2C+validation%2C+and+application+of+cytochrome+P4501A1+%28CYP1A1%29+as+a+biomarker+for+contaminant+exposure.&rft.au=Melancon%2C+Mark+J&rft.aulast=Melancon&rft.aufirst=Mark&rft.date=2004-08-01&rft.volume=80&rft.issue=2&rft.spage=216&rft.isbn=&rft.btitle=&rft.title=Toxicological+sciences+%3A+an+official+journal+of+the+Society+of+Toxicology&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-01-05 N1 - Date created - 2004-07-26 N1 - Date revised - 2017-01-13 N1 - SuppNotes - Comment On: Toxicol Sci. 2004 Aug;80(2):268-75 [15056804] N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Hazard assessment of a simulated oil spill on intertidal areas of the St. Lawrence River with SPMD-TOX. AN - 66733252; 15269903 AB - Phytoremediation in a simulated crude oil spill was studied with a "minimalistic" approach. The SPMD-TOX paradigm-a miniature passive sorptive device to collect and concentrate chemicals and microscale tests to detect toxicity-was used to monitor over time the bioavailability and potential toxicity of an oil spill. A simulated crude oil spill was initiated on an intertidal freshwater grass-wetland along the St. Lawrence River southwest of Quebec City, Quebec, Canada. Several phytoremediation treatments were investigated; to dissipate and ameliorate the spill, treatments included nutrient amendments with inorganic nitrogen sources (ammonium nitrate and sodium nitrate) and phosphate (super triple phosphate) with and without cut plants, with natural attenuation (no phytoremedial treatment) as a control. Sequestered oil residues were bioavailable in all oil-treated plots in Weeks 1 and 2. Interestingly, the samples were colored and fluoresced under ultraviolet light. In addition, microscale tests showed that sequestered residues were acutely toxic and genotoxic, as well as that they induced hepatic P(450) enzymes. Analysis of these data suggested that polycyclic aromatic hydrocarbons were among the bioavailable residues sequestered. In addition, these findings suggested that the toxic bioavailable fractions of the oil spill and degradation products dissipated rapidly over time because after the second week the water column contained no oil or detectable degradation products in this riverine intertidal wetland. SPMD-TOX revealed no evidence of bioavailable oil products in Weeks 4, 6, 8, and 12. All phytoremediation efforts appeared to be ineffective in changing either the dissipation rate or the ability to ameliorate the oil toxicity. SPMD-TOX analysis of the water columns from these riverine experimental plots profiled the occurrence, dissipation, and influence of phytoremediation on the bioavailability and toxicity of oil products (parent or degradation products). Copyright 2004 Wiley Periodicals, Inc. JF - Environmental toxicology AU - Johnson, B Thomas AU - Petty, James D AU - Huckins, James N AU - Lee, Ken AU - Gauthier, Joanne AD - Columbia Environmental Research Center, U.S. Geological Survey, 4200 New Haven Road, Columbia, Missouri 65201, USA. btjohnson@usgs.gov Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 329 EP - 335 VL - 19 IS - 4 SN - 1520-4081, 1520-4081 KW - Fluorescent Dyes KW - 0 KW - Membranes, Artificial KW - Petroleum KW - Water Pollutants, Chemical KW - Cytochrome P-450 CYP1A1 KW - EC 1.14.14.1 KW - Index Medicus KW - Rivers KW - Vibrio -- genetics KW - Animals KW - Geologic Sediments -- chemistry KW - Ultraviolet Rays KW - Cyperaceae -- metabolism KW - Quebec KW - Cytochrome P-450 CYP1A1 -- biosynthesis KW - Biological Availability KW - Mutagenicity Tests KW - Luminescent Measurements KW - Water Movements KW - Vibrio -- metabolism KW - Ictaluridae -- metabolism KW - Biodegradation, Environmental KW - Time Factors KW - Environmental Monitoring -- methods KW - Petroleum -- toxicity KW - Petroleum -- metabolism KW - Water Pollutants, Chemical -- toxicity KW - Toxicity Tests -- methods KW - Toxicity Tests -- instrumentation KW - Water Pollutants, Chemical -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66733252?accountid=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=Environmental+toxicology&rft.atitle=Hazard+assessment+of+a+simulated+oil+spill+on+intertidal+areas+of+the+St.+Lawrence+River+with+SPMD-TOX.&rft.au=Johnson%2C+B+Thomas%3BPetty%2C+James+D%3BHuckins%2C+James+N%3BLee%2C+Ken%3BGauthier%2C+Joanne&rft.aulast=Johnson&rft.aufirst=B&rft.date=2004-08-01&rft.volume=19&rft.issue=4&rft.spage=329&rft.isbn=&rft.btitle=&rft.title=Environmental+toxicology&rft.issn=15204081&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-11-24 N1 - Date created - 2004-07-22 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The effects of fire on rock art; microscopic evidence reveals the importance of weathering rinds AN - 51508420; 2007-007339 JF - Physical Geography AU - Tratebas, Alice M AU - Cerveny, Niccole Villa AU - Dorn, Ronald I Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 313 EP - 333 PB - Bellwether Publishing, Columbia, MD VL - 25 IS - 4 SN - 0272-3646, 0272-3646 KW - United States KW - archaeology KW - Weston County Wyoming KW - weathering rinds KW - sandstone KW - Black Hills KW - weathering KW - fires KW - Wyoming KW - sedimentary rocks KW - petroglyphs KW - petrography KW - Whoopup Canyon KW - geomorphology KW - chemical composition KW - clastic rocks KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51508420?accountid=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=Physical+Geography&rft.atitle=The+effects+of+fire+on+rock+art%3B+microscopic+evidence+reveals+the+importance+of+weathering+rinds&rft.au=Tratebas%2C+Alice+M%3BCerveny%2C+Niccole+Villa%3BDorn%2C+Ronald+I&rft.aulast=Tratebas&rft.aufirst=Alice&rft.date=2004-08-01&rft.volume=25&rft.issue=4&rft.spage=313&rft.isbn=&rft.btitle=&rft.title=Physical+Geography&rft.issn=02723646&rft_id=info:doi/ L2 - http://www.bellpub.com/phg/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 54 N1 - PubXState - MD N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - archaeology; Black Hills; chemical composition; clastic rocks; fires; geomorphology; petroglyphs; petrography; sandstone; sedimentary rocks; United States; weathering; weathering rinds; Weston County Wyoming; Whoopup Canyon; Wyoming ER - TY - JOUR T1 - Desalination trends and issues AN - 51117162; 2007-007153 JF - WRRI Report AU - Hightower, Mike AU - Jennings, Thomas J A2 - Ortega Klett, Catherine T. Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 103 EP - 107 PB - New Mexico Water Resources Research Institute, Las Cruces, NM SN - 0731-7557, 0731-7557 KW - water use KW - United States KW - water quality KW - programs KW - technology KW - patterns KW - salt-water intrusion KW - pollution KW - fresh water KW - cost KW - ground water KW - desalinization KW - water treatment KW - water resources KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51117162?accountid=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=WRRI+Report&rft.atitle=Desalination+trends+and+issues&rft.au=Hightower%2C+Mike%3BJennings%2C+Thomas+J&rft.aulast=Hightower&rft.aufirst=Mike&rft.date=2004-08-01&rft.volume=&rft.issue=&rft.spage=103&rft.isbn=&rft.btitle=&rft.title=WRRI+Report&rft.issn=07317557&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 48th annual New Mexico water conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 7 N1 - PubXState - NM N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - NMWRAG N1 - SubjectsTermNotLitGenreText - cost; desalinization; fresh water; ground water; patterns; pollution; programs; salt-water intrusion; technology; United States; water quality; water resources; water treatment; water use ER - TY - JOUR T1 - Blarina brevicauda as a biological monitor of polychlorinated biphenyls: Evaluation of hepatic cytochrome P450 induction AN - 21045153; 6080400 AB - We assessed the value of short-tailed shrews (Blarina brevicauda) as a possible biomonitor for polychlorinated biphenyl pollution through measurement of the induction of hepatic cytochrome P450 and associated enzyme activities. First, we checked the inducibility of four monooxygenases (benzyloxyresorufin-O-dealkylase [BROD], ethoxyresorufin-O-dealkylase [EROD], methoxyresorufin-O-dealkylase [MROD], and pentoxyresorufin-O-dealkylase [PROD]) by measuring the activity of these enzymes in hepatic microsomes prepared from shrews injected with beta -naphthoflavone ( beta NF) or phenobarbital (PB), typical inducers of cytochrome P4501A (CYPIA) and CYP2B enzyme families, respectively. Enzyme activity was induced in shrews that received beta NF but not in shrews that received PB; PROD was not induced by either exposure. Later, shrews were exposed to a mixture of polychlorinated biphenyls (PCBs) (Aroclor 1242:1254, in 1:2 ratio) at 0.6, 9.6, and 150 ppm in food, for 31 d. Induction in these shrews was measured by specific enzyme activity (BROD, EROD, and MROD) in hepatic microsomes, by western blotting of solubilized microsomes against antibodies to CYPIA or CYP2B, and by duration of sodium pentobarbital-induced sleep. These three CYP enzymes were induced in shrews by PCBs at similar levels of exposure as in cotton rat (Sigmodon hispidus). Neither sleep time nor the amount of CYP2B family protein were affected by PCB exposure. Blarina brevicauda can be a useful biomonitor of PCBs that induce CYPIA, especially in habitats where they are the abundant small mammal. JF - Environmental Toxicology and Chemistry AU - Russell, J S AU - Halbrook, R S AU - Woolf, A AU - French, J B AU - Melancon, MJ AD - US Geological Survey Patuxent Wildlife Research Center, 12011 Beech Forest Drive, Laurel, Maryland 20708-4041, mark_melancon@usgs.gov Y1 - 2004/08// PY - 2004 DA - Aug 2004 SP - 1867 EP - 1873 VL - 23 IS - 8 SN - 0730-7268, 0730-7268 KW - Hispid cotton rat KW - Toxicology Abstracts; Pollution Abstracts KW - Pollution monitoring KW - Phenobarbital KW - Food KW - Sigmodon hispidus KW - Cytochrome P4501A KW - PCB compounds KW - Pollution KW - PCB KW - Bioindicators KW - Western blotting KW - Microsomes KW - monooxygenase KW - Enzymes KW - Habitat KW - Sodium KW - Aroclor KW - Antibodies KW - Blarina brevicauda KW - Bioassays KW - Cytochrome KW - polychlorinated biphenyls KW - beta -Naphthoflavone KW - Sleep KW - Liver KW - Cytochrome P450 KW - X 24370:Natural Toxins KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21045153?accountid=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=Blarina+brevicauda+as+a+biological+monitor+of+polychlorinated+biphenyls%3A+Evaluation+of+hepatic+cytochrome+P450+induction&rft.au=Russell%2C+J+S%3BHalbrook%2C+R+S%3BWoolf%2C+A%3BFrench%2C+J+B%3BMelancon%2C+MJ&rft.aulast=Russell&rft.aufirst=J&rft.date=2004-08-01&rft.volume=23&rft.issue=8&rft.spage=1867&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 - 2005-01-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Western blotting; Microsomes; Phenobarbital; monooxygenase; Food; Enzymes; Cytochrome P4501A; Habitat; Sodium; Aroclor; Antibodies; beta -Naphthoflavone; polychlorinated biphenyls; Sleep; Liver; Cytochrome P450; PCB; Pollution; Bioindicators; Pollution monitoring; Cytochrome; Bioassays; PCB compounds; Blarina brevicauda; Sigmodon hispidus ER - TY - JOUR T1 - Wave- and tidally-driven flow and sediment flux across a fringing coral reef: Southern Molokai, Hawaii AN - 20983919; 5978402 AB - The fringing coral reef off the south coast of Molokai, Hawaii is currently being studied as part of a US Geological Survey (USGS) multi-disciplinary project that focuses on geologic and oceanographic processes that affect coral reef systems. For this investigation, four instrument packages were deployed across the fringing coral reef during the summer of 2001 to understand the processes governing fine-grained terrestrial sediment suspension on the shallow reef flat (h=1 m) and its advection across the reef crest and onto the deeper fore reef. The time-series measurements suggest the following conceptual model of water and fine-grained sediment transport across the reef: Relatively cool, clear water flows up onto the reef flat during flooding tides. At high tide, more deep-water wave energy is able to propagate onto the reef flat and larger Trade wind-driven waves can develop on the reef flat, thereby increasing sediment suspension. Trade wind-driven surface currents and wave breaking at the reef crest cause setup of water on the reef flat, further increasing the water depth and enhancing the development of depth-limited waves and sediment suspension. As the tide ebbs, the water and associated suspended sediment on the reef flat drains off the reef flat and is advected offshore and to the west by Trade wind- and tidally- driven currents. Observations on the fore reef show relatively high turbidity throughout the water column during the ebb tide. It therefore appears that high suspended sediment concentrations on the deeper fore reef, where active coral growth is at a maximum, are dynamically linked to processes on the muddy, shallow reef flat. JF - Continental Shelf Research AU - Storlazzi, C D AU - Ogston, A S AU - Bothner, M H AU - Field, ME AU - Presto, M K AD - US Geological Survey, Pacific Science Center, 1156 High Street, Santa Cruz, CA 95064, USA, cstorlazzi@usgs.gov Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 1397 EP - 1419 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl] VL - 24 IS - 12 SN - 0278-4343, 0278-4343 KW - Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts KW - Coral reefs KW - Waves KW - Tides KW - Suspended sediment KW - Sediment flux KW - Cross-shore transport KW - Reefs KW - Advection KW - Resuspended sediments KW - Marine environment KW - Continental shelves KW - Corals KW - Transport processes KW - Sedimentation KW - ISE, USA, Hawaii KW - Model Studies KW - Wave crests KW - Sediment-water interface KW - Wave breaking KW - Flooding KW - Turbidity KW - USA, Hawaii, Molokai I. KW - Water Depth KW - Geology KW - Sediment transport KW - Deep-water waves KW - Continental Shelf KW - Coasts KW - Sediment Transport KW - Marine KW - Suspended Sediments KW - Water Currents KW - Flow Discharge KW - Ocean circulation KW - Wave propagation KW - Fluctuations KW - AQ 00001:Water Resources and Supplies 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/20983919?accountid=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=Continental+Shelf+Research&rft.atitle=Wave-+and+tidally-driven+flow+and+sediment+flux+across+a+fringing+coral+reef%3A+Southern+Molokai%2C+Hawaii&rft.au=Storlazzi%2C+C+D%3BOgston%2C+A+S%3BBothner%2C+M+H%3BField%2C+ME%3BPresto%2C+M+K&rft.aulast=Storlazzi&rft.aufirst=C&rft.date=2004-08-01&rft.volume=24&rft.issue=12&rft.spage=1397&rft.isbn=&rft.btitle=&rft.title=Continental+Shelf+Research&rft.issn=02784343&rft_id=info:doi/10.1016%2Fj.csr.2004.02.010 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-02-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Ocean circulation; Wave propagation; Resuspended sediments; Wave crests; Sediment-water interface; Coral reefs; Wave breaking; Continental shelves; Sediment transport; Transport processes; Sedimentation; Deep-water waves; Turbidity; Marine environment; Waves; Geology; Tides; Sediment Transport; Reefs; Suspended Sediments; Water Currents; Flow Discharge; Advection; Model Studies; Flooding; Water Depth; Corals; Fluctuations; Continental Shelf; Coasts; USA, Hawaii, Molokai I.; ISE, USA, Hawaii; Marine DO - http://dx.doi.org/10.1016/j.csr.2004.02.010 ER - TY - JOUR T1 - Degradation of methyl bromide and methyl chloride in soil microcosms: Use of stable C isotope fractionation and stable isotope probing to identify reactions and the responsible microorganisms AN - 20132430; 5977415 AB - Bacteria in soil microcosm experiments oxidized elevated levels of methyl chloride (MeCl) and methyl bromide (MeBr), the former compound more rapidly than the latter. MeBr was also removed by chemical reactions while MeCl was not. Chemical degradation dominated the early removal of MeBr and accounted for more than half of its total loss. Fractionation of stable carbon isotopes during chemical degradation of MeBr resulted in a kinetic isotope effect (KIE) of 59 +/- 7. Soil bacterial oxidation dominated the later removal of MeBr and MeCl and was characterized by different KIEs for each compound. The KIE for MeBr oxidation was 69 +/- 9 and the KIE for MeCl oxidation was 49 +/- 3. Stable isotope probing revealed that different populations of soil bacteria assimilated added super(13)C-labeled MeBr and MeCl. The identity of the active MeBr and MeCl degrading bacteria in soil was determined by analysis of 16S rRNA gene sequences amplified from super(13)C-DNA fractions, which identified a number of sequences from organisms not previously thought to be involved in methyl halide degradation. These included Burkholderia, the major clone type in the super(13)C-MeBr fraction, and Rhodobacter, Lysobacter and Nocardioides the major clone types in the super(13)C-MeCl fraction. None of the 16S rRNA gene sequences for methyl halide oxidizing bacteria currently in culture (including Aminobacter strain IMB-1 isolated from fumigated soil) were identified. Functional gene clone types closely related to Aminobacter spp. were identified in libraries containing the sequences for the cmuA gene, which codes for the enzyme known to catalyze the initial step in the oxidation of MeBr and MeCl. The cmuA gene was limited to members of the alpha-Proteobacteria whereas the greater diversity demonstrated by the 16S rRNA gene may indicate that other enzymes catalyze methyl halide oxidation in different groups of bacteria. JF - Geochimica et Cosmochimica Acta AU - Miller, L G AU - Warner, K L AU - Baesman, S M AU - Oremland, R S AU - McDonald, IR AU - Radajewski, S AU - Murrell, J C AD - U.S. Geological Survey, Menlo Park, CA 94025, USA, lgmiller@usgs.gov Y1 - 2004/08// PY - 2004 DA - Aug 2004 SP - 3271 EP - 3283 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 68 IS - 15 SN - 0016-7037, 0016-7037 KW - methyl bromide KW - methyl chloride KW - Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts KW - Isotopes KW - Biodegradation KW - Chemical degradation KW - Aminobacter KW - Chloride KW - Burkholderia KW - Soil microorganisms KW - Nocardioides KW - Rhodobacter KW - Soil KW - Carbon KW - Methyl bromide KW - Microcosms KW - Bacteria KW - Enzymes KW - Soil contamination KW - Lysobacter KW - Fractionation KW - Kinetics KW - Oxidation KW - Microorganisms KW - rRNA 16S KW - P 5000:LAND POLLUTION KW - A 01320:Microbial Degradation KW - J 02450:Ecology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20132430?accountid=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=Geochimica+et+Cosmochimica+Acta&rft.atitle=Degradation+of+methyl+bromide+and+methyl+chloride+in+soil+microcosms%3A+Use+of+stable+C+isotope+fractionation+and+stable+isotope+probing+to+identify+reactions+and+the+responsible+microorganisms&rft.au=Miller%2C+L+G%3BWarner%2C+K+L%3BBaesman%2C+S+M%3BOremland%2C+R+S%3BMcDonald%2C+IR%3BRadajewski%2C+S%3BMurrell%2C+J+C&rft.aulast=Miller&rft.aufirst=L&rft.date=2004-08-01&rft.volume=68&rft.issue=15&rft.spage=3271&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2003.11.028 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-01-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Soil; Isotopes; Carbon; Kinetics; Oxidation; Microorganisms; Enzymes; Chloride; Microcosms; Methyl bromide; rRNA 16S; Soil microorganisms; Bacteria; Chemical degradation; Biodegradation; Fractionation; Soil contamination; Rhodobacter; Nocardioides; Lysobacter; Aminobacter; Burkholderia DO - http://dx.doi.org/10.1016/j.gca.2003.11.028 ER - TY - JOUR T1 - Geochemical characterization of shallow ground water in the Eutaw aquifer, Montgomery, Alabama AN - 19406805; 6020610 AB - Ground water samples were collected from 30 wells located in, or directly down gradient from, recharge areas of the Eutaw aquifer in Montgomery, Alabama. The major ion content of the water evolves from calcium-sodium-chloride-dominated type in the recharge area to calcium-bicarbonate-dominated type in the confined portion of the aquifer. Ground water in the recharge area was undersaturated with respect to aluminosilicate and carbonate minerals. Ground water in the confined portion of the aquifer was at equilibrium levels for calcite and potassium feldspar. Dissolved oxygen and nitrite-plus-nitrate concentrations decreased as ground water age increased; pH, iron, and sulfate concentrations increased as ground water age increased. Aluminum, copper, and zinc concentrations decreased as ground water age and pH increased. These relations indicate that nitrate, aluminum, copper, and zinc are removed from solution as water moves from recharge areas to the confined areas of the Eutaw aquifer. The natural evolution of ground water quality, which typically increases the pH and decreases the dissolved oxygen content, may be an important limiting factor to the migration of nitrogen based compounds and metals. JF - Journal of the American Water Resources Association AU - Robinson, J L AU - Journey, CA AD - U.S. Geological Survey, 2350 Fairlane Drive, Suite 120, Montgomery, AL 36116, USA, jrobinso@usgs.gov Y1 - 2004/08// PY - 2004 DA - Aug 2004 SP - 851 EP - 861 VL - 40 IS - 4 SN - 1093-474X, 1093-474X KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Sulfates KW - Copper KW - Water quality KW - Dissolved oxygen KW - USA, Alabama KW - Groundwater recharge KW - Groundwater Data KW - USA, Alabama, Montgomery KW - Metals KW - Carbonates KW - Calcite KW - Groundwater KW - Groundwater Recharge KW - Iron KW - Nitrogen KW - Aquifers KW - Zinc KW - Nitrates KW - Geochemistry KW - Dissolved Oxygen KW - Hydrogen Ion Concentration KW - Equilibrium KW - Aquifer recharge KW - Aluminum KW - Limiting Factors KW - Evolution KW - SW 3040:Wastewater treatment processes KW - M2 556.38:Groundwater Basins (556.38) KW - P 2000:FRESHWATER POLLUTION KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19406805?accountid=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=Geochemical+characterization+of+shallow+ground+water+in+the+Eutaw+aquifer%2C+Montgomery%2C+Alabama&rft.au=Robinson%2C+J+L%3BJourney%2C+CA&rft.aulast=Robinson&rft.aufirst=J&rft.date=2004-08-01&rft.volume=40&rft.issue=4&rft.spage=851&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 - 2007-01-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Aquifers; Aquifer recharge; Water quality; Evolution; Metals; Groundwater recharge; Nitrates; Zinc; Geochemistry; Copper; Groundwater; Iron; Dissolved oxygen; Nitrogen; Sulfates; Carbonates; Dissolved Oxygen; Calcite; Hydrogen Ion Concentration; Equilibrium; Limiting Factors; Groundwater Data; Groundwater Recharge; Aluminum; USA, Alabama, Montgomery; USA, Alabama ER - TY - JOUR T1 - Population Structure and Inbreeding Vary with Successional Stage in Created Spartina alterniflora Marshes AN - 18055572; 5970911 AB - Recruitment patterns in clonal plant populations are predicted to vary with seed dispersal capability and disturbance regime, such that species with small, widely dispersed seeds will become increasingly dominated by vegetative recruitment on disturbed areas following early colonization. Subsequent mortality due to competitive or stochastic effects is then predicted to cause a gradual decline in both clonal diversity and the ability of surviving clones to avoid geitonogamous mating and possible inbreeding depression. We tested predictions of these hypotheses by comparing four adjacent populations of the salt marsh plant, Spartina alterniflora, ranging in age from 2 to similar to 50 yr, by measuring fine-scale genetic structure at the level of both ramets and genets, and the rate of inbreeding. For this purpose, we sampled maternal tissue and seeds from discrete patches in the field and then genotyped both maternal and seedling tissue (germinated in a growth chamber) using standard molecular protocols. As predicted, we observed an increase in clonal diversity (measured as the complement of the Simpson Index corrected for finite sample sizes, 1-D) up to a maximum of 0.71 within 3-m super(2) patches at 16 yr, declining to 0.55 by similar to 50 yr. Local recruitment of seedlings was evident as genetic structure occurring at the level of patches, as measured by the fixation index, theta , which was inversely correlated with diversity (R super(2) > 0.90 at all patch scales). Outcrossing rates were positively associated with clonal diversity, with the highest level (89%) at an intermediate level of 1-D. The greatest selfing (32%) occurred in young (2-yr-old) patches with low diversity. Biparental inbreeding was minimal in all populations, never exceeding 1%. Inbreeding depression was inferred to be severe, as evidenced by near-zero adult inbreeding coefficients. These results suggest a possible fitness trade-off between clonal growth and the opportunity for outcrossing. We recommend that restoration plantings of clonal species with limited sexual recruitment capabilities should be designed to ensure adequate clonal diversity for the avoidance of inbreeding and the ability to adapt to subsequent environmental disturbances. JF - Ecological Applications AU - Travis, SE AU - Proffitt, CE AU - Ritland, K AD - USGS National Wetlands Research Center, 700 Cajundome Boulevard, Lafayette, Louisiana 70506, USA Y1 - 2004/08// PY - 2004 DA - Aug 2004 SP - 1189 EP - 1202 PB - Ecological Society of America VL - 14 IS - 4 SN - 1051-0761, 1051-0761 KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts KW - Genetic diversity KW - Sexual reproduction KW - Succession KW - Natural selection KW - Restoration KW - Population genetics KW - Vegetation cover KW - Colonization KW - Ecological succession KW - Self fertilization KW - Intraspecific relationships KW - Plant populations KW - Spartina alterniflora KW - Clones KW - Marine KW - Seeds KW - Adaptations KW - Recruitment KW - Brackish KW - Marshes KW - Ecosystem disturbance KW - Salt marshes KW - Plants KW - Population structure KW - Inbreeding KW - Seedlings KW - Patchiness KW - Dispersion KW - Vegetative reproduction KW - Q5 08523:Conservation, wildlife management and recreation KW - Q1 08443:Population genetics KW - Q1 08225:Genetics and evolution KW - D 04715:Reclamation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18055572?accountid=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=Population+Structure+and+Inbreeding+Vary+with+Successional+Stage+in+Created+Spartina+alterniflora+Marshes&rft.au=Travis%2C+SE%3BProffitt%2C+CE%3BRitland%2C+K&rft.aulast=Travis&rft.aufirst=SE&rft.date=2004-08-01&rft.volume=14&rft.issue=4&rft.spage=1189&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 - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Clones; Seeds; Adaptations; Recruitment; Sexual reproduction; Genetic diversity; Natural selection; Ecosystem disturbance; Restoration; Colonization; Vegetation cover; Population genetics; Ecological succession; Salt marshes; Self fertilization; Seedlings; Inbreeding; Intraspecific relationships; Plant populations; Patchiness; Vegetative reproduction; Dispersion; Plants; Population structure; Marshes; Succession; Spartina alterniflora; Brackish; Marine ER - TY - JOUR T1 - Wildfire, Fuel Reduction, and Herpetofaunas across Diverse Landscape Mosaics in Northwestern Forests AN - 18055440; 6003817 AB - The herpetofauna (amphibians and reptiles) of northwestern forests (U.S.A.) is diverse, and many species are locally abundant. Most forest amphibians west of the Cascade Mountain crest are associated with cool, cascading streams or coarse woody material on the forest floor, which are characteristics of mature forests. Extensive loss and fragmentation of habitat resulted from logging across approximately 50% of old-growth forests in northern California and approximately 80% of stands in Oregon and Washington. There is a complex landscape mosaic and overlap of northern and southern biotic elements in the Klamath-Siskiyou Region along the Oregon and California border, creating a biodiversity hotspot. The region experiences many low-severity fires annually, punctuated by periodic major fires, including the Biscuit fire, the largest in North America in 2002. In the fire's northern portion, severe fire occurred on >50% of stands of young, managed trees but on only about 25-33% of old-growth stands. This suggests that the legacy of timber harvest may produce fire-prone stands. Calls for prescribed fire and thinning to reduce fuel loads will remove large amounts of coarse woody material from forests, which reduces cover for amphibians and alters nutrient inputs to streams. Our preliminary evidence suggests no negative effects of wildfire on terrestrial amphibians, but stream amphibians decrease following wildfire. Most reptiles are adapted to open terrain, so fire usually improves their habitat. Today, the challenge is to maintain biodiversity in western forests in the face of intense political pressures designed to 'prevent' catastrophic fires. We need a dedicated research effort to understanding how fire affects biota and to proactively investigate outcomes of fuel-reduction management on wildlife in western forests.Original Abstract: La herpetofauna (anfibios y reptiles) de bosques noroccidentales (E. U. A.) es diversa y muchas especies son localmente abundantes. La mayoria de anfibios de bosques al oeste de la cresta de Cascade Mountain estan asociados con arroyos escalonados frescos o con material lenoso grueso sobre el suelo, que son caracteristicos de bosques maduros. La tala produjo perdida extensiva y fragmentacion del habitat en similar to 50% de los bosques maduros en el norte de California y en similar to 80% de los bosques en Oregon y Washington. En la Region Klamath-Siskiyou a lo largo de la frontera de Oregon y California hay un complejo mosaico paisajistico y traslape de elementos bioticos del norte y del sur, lo que produce un area critica para la biodiversidad. En la region se presentan anualmente muchos incendios de baja severidad, punteados por incendios mayores periodicos, incluyendo el Biscuit fire, el mas grande de Norteamerica en 2002. En la porcion norte del incendio, hubo fuego severo en >50% de arboles jovenes bajo manejo pero solo 25-33% de areas de bosque maduro. Esto sugiere que el legado de la actividad maderera puede producir zonas propensas al fuego. La utilizacion de fuego prescrito y la eliminacion de combustibles removera grandes cantidades de material lenoso grueso de los bosques, lo que reduce la cobertura para anfibios y altera la entrada de nutrientes a los arroyos. Nuestra evidencia preliminar sugiere que los incendios no tienen efectos negativos en los anfibios terrestres, pero los anfibios de arroyo decrecen despues del incendio. La mayoria de los reptiles estan adaptados a terrenos abiertos, asi que el fuego generalmente mejora su habitat. Hoy, el reto es mantener la biodiversidad de los bosques occidentales frente a intensas presiones politicas disenadas para 'prevenir' incendios catastroficos. Requerimos de esfuerzos de investigacion especializada para entender los efectos del fuego sobre la biota e investigar proactivamente las consecuencias de la gestion de reduccion de fuego sobre la vida silvestre en bosques occidentales. JF - Conservation Biology AU - Bury, R B AD - U.S. Geological Survey, Forest and Rangeland Ecosystem Science Center, 3200 SW Jefferson Way, Corvallis, OR 97331-8550, U.S.A., buryb@usgs.gov Y1 - 2004/08// PY - 2004 DA - Aug 2004 SP - 968 EP - 975 PB - Blackwell Science Ltd VL - 18 IS - 4 SN - 0888-8892, 0888-8892 KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Freshwater KW - D 04700:Management KW - Q1 01482:Ecosystems and energetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18055440?accountid=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=Wildfire%2C+Fuel+Reduction%2C+and+Herpetofaunas+across+Diverse+Landscape+Mosaics+in+Northwestern+Forests&rft.au=Saiki%2C+M+K%3BMartin%2C+BA%3BMay%2C+T+W&rft.aulast=Saiki&rft.aufirst=M&rft.date=2004-09-01&rft.volume=47&rft.issue=3&rft.spage=363&rft.isbn=&rft.btitle=&rft.title=Archives+of+Environmental+Contamination+and+Toxicology&rft.issn=00904341&rft_id=info:doi/10.1007%2Fs00244-004-2051-3 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Freshwater DO - http://dx.doi.org/10.1111/j.1523-1739.2004.00522.x ER - TY - JOUR T1 - Carbon Dynamics of an Old-growth Forest AN - 18048833; 5998314 JF - Ecosystems AU - Suchanek, TH AU - Mooney, HA AU - Franklin, J F AU - Gucinski, H AU - Ustin, S L AD - Division of Environmental Contaminants, USFWS, 2800 Cottage Way, Sacramento, California 95825, USA, thsuchanek@ucdavis.edu Y1 - 2004/08// PY - 2004 DA - Aug 2004 SP - 421 EP - 426 PB - Springer-Verlag VL - 7 IS - 5 SN - 1432-9840, 1432-9840 KW - Ecology Abstracts KW - Old growth KW - Carbon cycle KW - Forests KW - D 04120:Woodlands UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18048833?accountid=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=Ecosystems&rft.atitle=Carbon+Dynamics+of+an+Old-growth+Forest&rft.au=Suchanek%2C+TH%3BMooney%2C+HA%3BFranklin%2C+J+F%3BGucinski%2C+H%3BUstin%2C+S+L&rft.aulast=Suchanek&rft.aufirst=TH&rft.date=2004-08-01&rft.volume=7&rft.issue=5&rft.spage=421&rft.isbn=&rft.btitle=&rft.title=Ecosystems&rft.issn=14329840&rft_id=info:doi/10.1007%2Fs10021-004-0134-7 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Old growth; Carbon cycle; Forests DO - http://dx.doi.org/10.1007/s10021-004-0134-7 ER - TY - JOUR T1 - Importance of the habitat choice behavior assumed when modeling the effects of food and temperature on fish populations AN - 18044118; 5924460 AB - Various mechanisms of habitat choice in fishes based on food and/or temperature have been proposed: optimal foraging for food alone; behavioral thermoregulation for temperature alone; and behavioral energetics and discounted matching for food and temperature combined. Along with development of habitat choice mechanisms, there has been a major push to develop and apply to fish populations individual-based models that incorporate various forms of these mechanisms. However, it is not known how the wide variation in observed and hypothesized mechanisms of fish habitat choice could alter fish population predictions (e.g. growth, size distributions, etc.). We used spatially explicit, individual-based modeling to compare predicted fish populations using different submodels of patch choice behavior under various food and temperature distributions. We compared predicted growth, temperature experience, food consumption, and final spatial distribution using the different models. Our results demonstrated that the habitat choice mechanism assumed in fish population modeling simulations was critical to predictions of fish distribution and growth rates. Hence, resource managers who use modeling results to predict fish population trends should be very aware of and understand the underlying patch choice mechanisms used in their models to assure that those mechanisms correctly represent the fish populations being modeled. JF - Ecological Modelling AU - Wildhaber, M L AU - Lamberson, P J AD - U.S. Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, MO 65201, USA, mwildhaber@usgs.gov Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 395 EP - 409 PB - Elsevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl] VL - 175 IS - 4 SN - 0304-3800, 0304-3800 KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Optimal foraging KW - Thermoregulation KW - Behavioral energetics KW - Bioenergetics KW - Discounted matching KW - Bluegill KW - Spatially explicit KW - Individual based KW - Growth rate KW - Temperature effects KW - Foraging behavior KW - Ecological distribution KW - Behaviour KW - Habitat preferences KW - Population studies KW - Food availability KW - Habitat selection KW - Population dynamics KW - Models KW - Pisces KW - Food consumption KW - Foraging behaviour KW - Fishery management KW - Size distribution KW - Patchiness KW - Abiotic factors KW - D 04003:Modeling, mathematics, computer applications KW - Q1 08423:Behaviour UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18044118?accountid=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=Importance+of+the+habitat+choice+behavior+assumed+when+modeling+the+effects+of+food+and+temperature+on+fish+populations&rft.au=Wildhaber%2C+M+L%3BLamberson%2C+P+J&rft.aulast=Wildhaber&rft.aufirst=M&rft.date=2004-08-01&rft.volume=175&rft.issue=4&rft.spage=395&rft.isbn=&rft.btitle=&rft.title=Ecological+Modelling&rft.issn=03043800&rft_id=info:doi/10.1016%2Fj.ecolmodel.2003.08.022 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Temperature effects; Growth rate; Bioenergetics; Thermoregulation; Ecological distribution; Behaviour; Food availability; Population dynamics; Habitat selection; Models; Foraging behaviour; Food consumption; Fishery management; Patchiness; Size distribution; Abiotic factors; Foraging behavior; Population studies; Habitat preferences; Pisces DO - http://dx.doi.org/10.1016/j.ecolmodel.2003.08.022 ER - TY - JOUR T1 - Phylogeographical patterns in the American Pacific Northwest: lessons from the arionid slug Prophysaon coeruleum AN - 17995819; 5966754 AB - Some of the earliest studies of phylogenetic concordance involve native plants from the Pacific Northwest where many taxa showed clear genetic breaks between southern and northern populations. To test whether similar breaks also occur in invertebrate species with low dispersal capacities, genetic data from two mitochondrial genes are assembled for individuals of the arionid slug Prophysaon coeruleum throughout the species' range. Bayesian inference revealed three major clades and a total of eight subclades. It is argued that the demographic and genealogical past of P. coeruleum has resulted in a deep and shallow phylogeographical structure. The deep structure is at least 2.6-5.9 million years old and therefore clearly predates the Pleistocene period. Superimposed on this structure is a shallow structure that is most likely less than 2 million years old and probably the result of Pleistocene perturbations. Molecular analyses revealed that the three known colour traits in P. coeruleum do not represent monophyletic groups and that they do not match the patterns of genetic structure found. It is argued that the colour traits are perhaps a response to different levels of UV-radiation. The study adds to the increasing evidence that the phylogeographical structure of some taxa is more complex than previously thought. Moreover, it shows that genealogical concordance should not be deduced from phylogeographical patterns alone but should be based on an understanding of timing and causes of historical processes that lead to those patterns. JF - Molecular Ecology AU - Wilke, T AU - Duncan, N AD - Justus Liebig University Giessen, Department of Animal Ecology and Systematics, Heinrich-Buff-Ring 26-32, D-35392 Giessen, Germany, United States Department of the Interior - Bureau of Land Management, 777 Garden Valley Boulevard, Roseburg OR 97470, USA, tom.wilke@allzool.bio.uni-giessen.de Y1 - 2004/08// PY - 2004 DA - Aug 2004 SP - 2303 EP - 2315 PB - Blackwell Science Ltd VL - 13 IS - 8 SN - 0962-1083, 0962-1083 KW - Blue-gray taildropper KW - Ecology Abstracts; Genetics Abstracts KW - Bayesian analysis KW - Mitochondria KW - Prophysaon coeruleum KW - Ecological genetics KW - Population genetics KW - U.V. radiation KW - Genetic structure KW - D 04658:Molluscs KW - G 07290:Population genetics KW - G 07364:Mollusks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17995819?accountid=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=Phylogeographical+patterns+in+the+American+Pacific+Northwest%3A+lessons+from+the+arionid+slug+Prophysaon+coeruleum&rft.au=Wilke%2C+T%3BDuncan%2C+N&rft.aulast=Wilke&rft.aufirst=T&rft.date=2004-08-01&rft.volume=13&rft.issue=8&rft.spage=2303&rft.isbn=&rft.btitle=&rft.title=Molecular+Ecology&rft.issn=09621083&rft_id=info:doi/10.1111%2Fj.1365-294X.2004.02234.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Prophysaon coeruleum; U.V. radiation; Population genetics; Bayesian analysis; Genetic structure; Ecological genetics; Mitochondria DO - http://dx.doi.org/10.1111/j.1365-294X.2004.02234.x ER - TY - JOUR T1 - Risk assessment and screening for potentially invasive fishes AN - 17790619; 6111227 AB - Preventing the introduction of potentially invasive species is becoming more important as this worldwide problem continues to grow. The ability to predict the identity or range of potential invaders could influence regulatory decisions and help to optimally allocate resources to deal with ongoing invasions. One screening tool presented here, using species life history and environmental tolerances to identify potential invaders similar to past invaders, can be used to predict potential invading species. Another screening tool, genetic algorithms, can be used to predict the potential range of an invading species. Use and further development of tools such as these, that are quantitative and relatively transparent, would give managers and other decision makers more information for making better-informed decisions. JF - New Zealand Journal of Marine and Freshwater Research AU - Kolar, C AD - U.S. Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, WI 54603, United States, ckolar@usgs.gov Y1 - 2004/08// PY - 2004 DA - Aug 2004 SP - 391 EP - 397 VL - 38 IS - 3 SN - 0028-8330, 0028-8330 KW - Genetic algorithms KW - Invasive species KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Risk assessment KW - Tolerance KW - Resource management KW - Geographical distribution KW - Algorithms KW - Freshwater fish KW - Risks KW - Pisces KW - Colonization KW - Life history KW - Ecosystem management KW - Invasions KW - Introduced species KW - Dispersion KW - Q5 08523:Conservation, wildlife management and recreation KW - Q1 08341:General KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17790619?accountid=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=New+Zealand+Journal+of+Marine+and+Freshwater+Research&rft.atitle=Risk+assessment+and+screening+for+potentially+invasive+fishes&rft.au=Kolar%2C+C&rft.aulast=Kolar&rft.aufirst=C&rft.date=2004-08-01&rft.volume=38&rft.issue=3&rft.spage=391&rft.isbn=&rft.btitle=&rft.title=New+Zealand+Journal+of+Marine+and+Freshwater+Research&rft.issn=00288330&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Special Issue: Invasive Species. N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Colonization; Geographical distribution; Resource management; Tolerance; Life history; Ecosystem management; Freshwater fish; Introduced species; Risks; Dispersion; Risk assessment; Algorithms; Invasions; Pisces ER - TY - JOUR T1 - Exploitation Of Pocket Gophers And Their Food Caches By Grizzly Bears AN - 17764590; 6052278 AB - I investigated the exploitation of pocket gophers (Thomomys talpoides) by grizzly bears (Ursus arctos horribilis) in the Yellowstone region of the United States with the use of data collected during a study of radiomarked bears in 1977-1992. My analysis focused on the importance of pocket gophers as a source of energy and nutrients, effects of weather and site features, and importance of pocket gophers to grizzly bears in the western contiguous United States prior to historical extirpations. Pocket gophers and their food caches were infrequent in grizzly bear feces, although foraging for pocket gophers accounted for about 20-25% of all grizzly bear feeding activity during April and May. Compared with roots individually excavated by bears, pocket gopher food caches were less digestible but more easily dug out. Exploitation of gopher food caches by grizzly bears was highly sensitive to site and weather conditions and peaked during and shortly after snowmelt. This peak coincided with maximum success by bears in finding pocket gopher food caches. Exploitation was most frequent and extensive on gently sloping nonforested sites with abundant spring beauty (Claytonia lanceolata) and yampah (Perdieridia gairdneri). Pocket gophers are rare in forests, and spring beauty and yampah roots are known to be important foods of both grizzly bears and burrowing rodents. Although grizzly bears commonly exploit pocket gophers only in the Yellowstone region, this behavior was probably widespread in mountainous areas of the western contiguous United States prior to extirpations of grizzly bears within the last 150 years. JF - Journal of Mammalogy AU - Mattson, D J AD - USGS Southwest Biological Science Center, Colorado Plateau Research Station, P.O. Box 5614, Northern Arizona University, Flagstaff, Arizona 86011-5614, USA Y1 - 2004/08// PY - 2004 DA - Aug 2004 SP - 731 EP - 742 PB - American Society of Mammalogists VL - 85 IS - 4 SN - 0022-2372, 0022-2372 KW - Animal Behavior Abstracts; Ecology Abstracts KW - Feeding KW - Weather KW - Food KW - Claytonia lanceolata KW - Forests KW - Roots KW - Nutrients KW - Energy KW - Feces KW - Ursus arctos horribilis KW - Thomomys talpoides KW - Y 25497:Mammals (excluding primates) KW - D 04672:Mammals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17764590?accountid=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=Exploitation+Of+Pocket+Gophers+And+Their+Food+Caches+By+Grizzly+Bears&rft.au=Mattson%2C+D+J&rft.aulast=Mattson&rft.aufirst=D&rft.date=2004-08-01&rft.volume=85&rft.issue=4&rft.spage=731&rft.isbn=&rft.btitle=&rft.title=Journal+of+Mammalogy&rft.issn=00222372&rft_id=info:doi/10.1043%2F0022-2372%282004%290852.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0022-2372&volume=85&page=731 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Claytonia lanceolata; Thomomys talpoides; Ursus arctos horribilis; Food; Roots; Weather; Nutrients; Feeding; Energy; Forests; Feces DO - http://dx.doi.org/10.1043/0022-2372(2004)085<0731:EOPGAT>2.0.CO;2 ER - TY - JOUR T1 - Hydrochemical tracers in the middle Rio Grande Basin, USA: 1. Conceptualization of groundwater flow AN - 17738572; 6058021 AB - Chemical and isotopic data for groundwater from throughout the Middle Rio Grande Basin, central New Mexico, USA, were used to identify and map groundwater flow from 12 sources of water to the basin, evaluate radiocarbon ages, and refine the conceptual model of the Santa Fe Group aquifer system. Hydrochemical zones, representing groundwater flow over thousands to tens of thousands of years, can be traced over large distances through the primarily siliciclastic aquifer system. The locations of the hydrochemical zones mostly reflect the "modern", predevelopment hydraulic-head distribution, but are inconsistent with a trough in predevelopment water levels in the west-central part of the basin, indicating that this trough is a transient rather than a long-term feature of the aquifer system. Radiocarbon ages adjusted for geochemical reactions, mixing, and evapotranspiration/dilution processes in the aquifer system were nearly identical to the unadjusted radiocarbon ages, and ranged from modern to more than 30 ka. Age gradients from piezometer nests ranged from 0.1 to 2 year cm super(-1) and indicate a recharge rate of about 3 cm year super(-1) for recharge along the eastern mountain front and infiltration from the Rio Grande near Albuquerque. There has been appreciably less recharge along the eastern mountain front north and south of Albuquerque. JF - Hydrogeology Journal AU - Plummer, L N AU - Bexfield, L M AU - Anderholm, S K AU - Sanford, W E AU - Busenberg, E AD - US Geological Survey, 432 National Center, Reston, VA 20192, USA, nplummer@usgs.gov Y1 - 2004/08// PY - 2004 DA - Aug 2004 SP - 359 EP - 388 VL - 12 IS - 4 SN - 1431-2174, 1431-2174 KW - Water Resources Abstracts KW - Recharge KW - USA, Rio Grande KW - Basins KW - Evapotranspiration KW - Groundwater Basins KW - Water Level KW - Water Table KW - Mixing KW - Model Studies KW - Tracers KW - Surface-groundwater Relations KW - Piezometers KW - Distribution KW - Geohydrology KW - Infiltration KW - Aquifer Systems KW - Groundwater Movement KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17738572?accountid=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=Hydrochemical+tracers+in+the+middle+Rio+Grande+Basin%2C+USA%3A+1.+Conceptualization+of+groundwater+flow&rft.au=Plummer%2C+L+N%3BBexfield%2C+L+M%3BAnderholm%2C+S+K%3BSanford%2C+W+E%3BBusenberg%2C+E&rft.aulast=Plummer&rft.aufirst=L&rft.date=2004-08-01&rft.volume=12&rft.issue=4&rft.spage=359&rft.isbn=&rft.btitle=&rft.title=Hydrogeology+Journal&rft.issn=14312174&rft_id=info:doi/10.1007%2Fs10040-004-0324-6 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aquifer Systems; Recharge; Groundwater Movement; Groundwater Basins; Surface-groundwater Relations; Water Level; Piezometers; Infiltration; Geohydrology; Model Studies; Mixing; Evapotranspiration; Basins; Water Table; Tracers; Distribution; USA, Rio Grande DO - http://dx.doi.org/10.1007/s10040-004-0324-6 ER - TY - JOUR T1 - Hydrochemical tracers in the middle Rio Grande Basin, USA: 2. Calibration of a groundwater-flow model AN - 17738216; 6058022 AB - The calibration of a groundwater model with the aid of hydrochemical data has demonstrated that low recharge rates in the Middle Rio Grande Basin may be responsible for a groundwater trough in the center of the basin and for a substantial amount of Rio Grande water in the regional flow system. Earlier models of the basin had difficulty reproducing these features without any hydrochemical data to constrain the rates and distribution of recharge. The objective of this study was to use the large quantity of available hydrochemical data to help calibrate the model parameters, including the recharge rates. The model was constructed using the US Geological Survey's software MODFLOW, MODPATH, and UCODE, and calibrated using super(14)C activities and the positions of certain flow zones defined by the hydrochemical data. Parameter estimation was performed using a combination of nonlinear regression techniques and a manual search for the minimum difference between field and simulated observations. The calibrated recharge values were substantially smaller than those used in previous models. Results from a 30,000-year transient simulation suggest that recharge was at a maximum about 20,000 years ago and at a minimum about 10,000 years ago. JF - Hydrogeology Journal AU - Sanford, W E AU - Plummer, L N AU - McAda, D P AU - Bexfield, L M AU - Anderholm, S K AD - US Geological Survey, 431 National Center, Reston, VA 20192, USA, wsanford@usgs.gov Y1 - 2004/08// PY - 2004 DA - Aug 2004 SP - 389 EP - 407 VL - 12 IS - 4 SN - 1431-2174, 1431-2174 KW - Water Resources Abstracts KW - Recharge Basins KW - Flow System KW - USA, Rio Grande KW - Simulation KW - Groundwater Basins KW - Model Studies KW - Tracers KW - Calibrations KW - Surface-groundwater Relations KW - Distribution KW - Geohydrology KW - Groundwater Recharge KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17738216?accountid=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=Hydrochemical+tracers+in+the+middle+Rio+Grande+Basin%2C+USA%3A+2.+Calibration+of+a+groundwater-flow+model&rft.au=Sanford%2C+W+E%3BPlummer%2C+L+N%3BMcAda%2C+D+P%3BBexfield%2C+L+M%3BAnderholm%2C+S+K&rft.aulast=Sanford&rft.aufirst=W&rft.date=2004-08-01&rft.volume=12&rft.issue=4&rft.spage=389&rft.isbn=&rft.btitle=&rft.title=Hydrogeology+Journal&rft.issn=14312174&rft_id=info:doi/10.1007%2Fs10040-004-0326-4 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Model Studies; Surface-groundwater Relations; Calibrations; Groundwater Basins; Simulation; Flow System; Recharge Basins; Tracers; Distribution; Geohydrology; Groundwater Recharge; USA, Rio Grande DO - http://dx.doi.org/10.1007/s10040-004-0326-4 ER - TY - JOUR T1 - Comparative habitat use in a juniper woodland bird community AN - 17725747; 6047667 AB - We compared vegetation structure used by 14 bird species during the 1998 and 1999 breeding seasons to determine what habitat features best accounted for habitat division and community organization in Utah juniper (Juniperus osteosperma) woodlands of southwestern Wyoming. Habitat use was quantified by measuring 24 habitat variables in 461 bird-centered quadrats, each 0.04 ha in size. Using discriminant function analysis, we differentiated between habitat used by 14 bird species along 3 habitat dimensions: (1) variation in shrub cover, overstory juniper cover, mature tree density, understory height, and decadent tree density; (2) a gradient composed of elevation and forb cover; and (3) variation in grass cover, tree height, seedling/sapling cover, and bare ground/rock cover. Of 14 species considered, 9 exhibited substantial habitat partitioning: Mourning Dove (Zenaida macroura), Bewick's Wren (Thryomanes bewickii), Blue-gray Gnatcatcher (Polioptila caerulea), Mountain Bluebird (Sialia currucoides), Plumbeous Vireo (Vireo plumbeus), Green-tailed Towhee (Pipilo chlorurus), Brewer's Sparrow (Spizella breweri), Dark-eyed Junco (Junco hyemalis), and Cassin's Finch (Carpodacus cassinii). Our results indicate juniper bird communities of southwestern Wyoming are organized along a 3-dimensional habitat gradient composed of woodland maturity, elevation, and juniper recruitment. Because juniper birds partition habitat along successional and altitudinal gradients, indiscriminate woodland clearing as well as continued fire suppression will alter species composition. Restoration efforts should ensure that all successional stages of juniper woodland are present on the landscape. JF - Western North American Naturalist AU - Pavlacky, DC Jr AU - Anderson, SH AD - USGS, Wyoming Cooperative Fish and Wildlife Research Unit, Department of Zoology and Physiology, University of Wyoming, Laramie, WY 82071-3166, USA Y1 - 2004/08// PY - 2004 DA - Aug 2004 SP - 376 EP - 384 VL - 64 IS - 3 SN - 1527-0904, 1527-0904 KW - Utah juniper KW - Birds KW - Ecology Abstracts KW - Aves KW - Vegetation patterns KW - USA, Wyoming KW - Forests KW - Habitat utilization KW - Juniperus osteosperma KW - D 04671:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17725747?accountid=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=Comparative+habitat+use+in+a+juniper+woodland+bird+community&rft.au=Pavlacky%2C+DC+Jr%3BAnderson%2C+SH&rft.aulast=Pavlacky&rft.aufirst=DC&rft.date=2004-08-01&rft.volume=64&rft.issue=3&rft.spage=376&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 - Juniperus osteosperma; Aves; USA, Wyoming; Habitat utilization; Forests; Vegetation patterns ER - TY - JOUR T1 - Reproduction and seasonal activity of silver-haired bats (Lasionycteris noctivagans) in Western Nebraska AN - 17693043; 6047664 AB - Silver-haired bats (Lasionycteris noctivagans) were thought only to migrate through Nebraska; however, recent surveys in eastern Nebraska report summer records of females and their young. Our study in western Nebraska also shows that silver-haired bats are summer residents. We discovered the 1st reproductively active L. nocticagans in this part of the state. We caught lactating females and volant young in riparian forests along the North Platte River and in forested areas of the Pine Ridge. Previously, adult males were not known from Nebraska in summer, and only 4 records of L. noctivagans were known from western Nebraska during migration. On 28 July we captured an adult male in a coniferous forest of the Wildcat Hills, and we have more than 100 records of migrating individuals. Lastly, an obese L. noctivagans captured on 4 November may represent an individual preparing to hibernate in the state. JF - Western North American Naturalist AU - Geluso, K AU - Huebschman, J J AU - White, JA AU - Bogan, MA AD - United States Geological Survey, Arid Lands Field Station, Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131, USA Y1 - 2004/08// PY - 2004 DA - Aug 2004 SP - 353 EP - 358 VL - 64 IS - 3 SN - 1527-0904, 1527-0904 KW - Silver-haired bat KW - Animal Behavior Abstracts; Ecology Abstracts KW - Migration KW - Lasionycteris noctivagans KW - Riparian environments KW - USA, Nebraska KW - Reproduction KW - Seasonal variations KW - D 04672:Mammals KW - Y 25657:Mammals (excluding primates) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17693043?accountid=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=Reproduction+and+seasonal+activity+of+silver-haired+bats+%28Lasionycteris+noctivagans%29+in+Western+Nebraska&rft.au=Geluso%2C+K%3BHuebschman%2C+J+J%3BWhite%2C+JA%3BBogan%2C+MA&rft.aulast=Geluso&rft.aufirst=K&rft.date=2004-08-01&rft.volume=64&rft.issue=3&rft.spage=353&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 - Lasionycteris noctivagans; USA, Nebraska; Reproduction; Seasonal variations; Riparian environments; Migration ER - TY - JOUR T1 - Distribution and abundance of pelagic fish in Lake Powell, Utah, and Lake Mead, Arizona-Nevada AN - 17605383; 6047658 AB - Pelagic fish communities (waters with depths >20 m) of Lakes Powell and Mead were examined quarterly from 1995 to 1998 using vertical gill nets and a scientific echosounder. Nets captured a total of 449 fish consisting of striped bass (57%/45% [Lake Powell/Lake Mead]), threadfin shad (24%/50%), common carp (15%/4%), walleye (3%), channel catfish (2%), and rainbow trout (<1%). Each reservoir contained concentrations of pelagic species separated by expanses of habitat with few fish (<10 kg times ha super(-1)). Reservoirs experienced dramatic seasonal and annual fluctuations in pelagic biomass. Lake Powell's biomass peaked at the Colorado River at 709.7 ( plus or minus 46.5) kg times ha super(-1) and Lake Mead's reached 291.9 ( plus or minus 58.2) kg times ha super(-1) at Las Vegas Wash. These locations supported estimated fish densities of 124,668 fish times ha super(-1) and 15,131 fish times ha super(-1), respectively. Maximum reservoir biomass peaked in August 1996, with Lake Powell supporting 10,852,738 plus or minus 5,195,556 kg (27.6 x 10 super(7) fish) and Lake Mead 1,926,697 plus or minus 892.994 kg (10.8 x 10 super(7) fish). Biomass ebbed in May (1996 and 1997), when Lake Mead supported 65% (296,736 kg vs. 453,097 kg) and 62% (101,016 kg vs. 162,262 kg) of biomass levels found in Lake Powell. JF - Western North American Naturalist AU - Mueller, G A AU - Horn, MJ AD - United States Geological Survey, Box 25007, Denver, CO 80225, USA Y1 - 2004/08// PY - 2004 DA - Aug 2004 SP - 306 EP - 311 VL - 64 IS - 3 SN - 1527-0904, 1527-0904 KW - Common carp KW - Stizostedion vitreum vitreum KW - Threadfin shad KW - Walleye KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts; Water Resources Abstracts KW - Freshwater KW - SW 0850:Lakes KW - Q1 01342:Geographical distribution KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17605383?accountid=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+Restoration&rft.atitle=Restoration+of+Floodplain+Forests+for+the+Conservation+of+Migratory+Landbirds&rft.au=Twedt%2C+D+J%3BBest%2C+C&rft.aulast=Twedt&rft.aufirst=D&rft.date=2004-09-01&rft.volume=22&rft.issue=3&rft.spage=194&rft.isbn=&rft.btitle=&rft.title=Ecological+Restoration&rft.issn=15434060&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Freshwater ER - TY - JOUR T1 - Linear model describing three components of flow in karst aquifers using super(18)O data AN - 16194783; 5979223 AB - The stable isotope of oxygen, super(18)O, is used as a naturally occurring ground-water tracer. Time-series data for delta super(18)O are analyzed to model the distinct responses and relative proportions of the conduit, intermediate, and diffuse flow components in karst aquifers. This analysis also describes mathematically the dynamics of the transient fluid interchange between conduits and diffusive networks. Conduit and intermediate flow are described by linear-systems methods, whereas diffuse flow is described by mass-balance methods. An automated optimization process estimates parameters of lognormal, Pearson type III, and gamma distributions, which are used as transfer functions in linear-systems analysis. Diffuse flow and mixing parameters also are estimated by these optimization methods. Results indicate the relative proximity of a well to a main conduit flowpath and can help to predict the movement and residence times of potential contaminants. The three-component linear model is applied to five wells, which respond to changes in the isotopic composition of point recharge water from a sinking stream in the Madison aquifer in the Black Hills of South Dakota. Flow velocities as much as 540 m/d and system memories of as much as 71 years are estimated by this method. Also, the mean, median, and standard deviation of traveltimes; time to peak response; and the relative fraction of flow for each of the three components are determined for these wells. This analysis infers that flow may branch apart and rejoin as a result of an anastomotic (or channeled) karst network. JF - Journal of Hydrology (Amsterdam) AU - Long, A J AU - Putnam, L D AD - US Geological Survey, 1608 Mountain View Road, Rapid City, SD 57702, USA, ajlong@usgs.gov Y1 - 2004/08// PY - 2004 DA - Aug 2004 SP - 254 EP - 270 PB - Elsevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl/] VL - 296 IS - 1-4 SN - 0022-1694, 0022-1694 KW - Meteorological & Geoastrophysical Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Stable isotopes KW - Karst aquifers KW - Linear systems KW - Aquifer response KW - Mathematical models KW - Signal processing KW - Isotopes KW - Groundwater recharge KW - Hydrologic Models KW - Standard Deviation KW - Conduits KW - Distribution KW - Hydrology KW - Oxygen isotopes KW - Oxygen KW - Stable Isotopes KW - USA, South Dakota, Black Hills KW - Aquifer flow calculations KW - Groundwater Recharge KW - Oxygen-18 in groundwater KW - Optimization KW - Aquifers KW - Karst KW - USA, Wisconsin, Madison KW - Mixing KW - Streams KW - Tracers KW - Flow Velocity KW - Pollutants KW - Networks KW - Gamma-radiation KW - Traveltime KW - Wells KW - Karst Hydrology KW - Groundwater Movement KW - AQ 00001:Water Resources and Supplies KW - M2 556.33:Aquifers (556.33) KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16194783?accountid=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=Linear+model+describing+three+components+of+flow+in+karst+aquifers+using+super%2818%29O+data&rft.au=Long%2C+A+J%3BPutnam%2C+L+D&rft.aulast=Long&rft.aufirst=A&rft.date=2004-08-01&rft.volume=296&rft.issue=1-4&rft.spage=254&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology+%28Amsterdam%29&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2004.03.023 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-02-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Oxygen isotopes; Aquifers; Gamma-radiation; Karst; Aquifer flow calculations; Oxygen-18 in groundwater; Tracers; Oxygen; Isotopes; Groundwater recharge; Mathematical models; Hydrology; Traveltime; Streams; Mixing; Flow Velocity; Hydrologic Models; Stable Isotopes; Pollutants; Standard Deviation; Conduits; Karst Hydrology; Wells; Distribution; Networks; Groundwater Movement; Groundwater Recharge; Optimization; USA, South Dakota, Black Hills; USA, Wisconsin, Madison DO - http://dx.doi.org/10.1016/j.jhydrol.2004.03.023 ER - TY - JOUR T1 - Rare earth element partitioning between hydrous ferric oxides and acid mine water during iron oxidation AN - 16177481; 5918910 AB - Ferrous iron rapidly oxidizes to Fe (III) and precipitates as hydrous Fe (III) oxides in acid mine waters. This study examines the effect of Fe precipitation on the rare earth element (REE) geochemistry of acid mine waters to determine the pH range over which REEs behave conservatively and the range over which attenuation and fractionation occur. Two field studies were designed to investigate REE attenuation during Fe oxidation in acidic, alpine surface waters. To complement these field studies, a suite of six acid mine waters with a pH range from 1.6 to 6.1 were collected and allowed to oxidize in the laboratory at ambient conditions to determine the partitioning of REEs during Fe oxidation and precipitation. Results from field experiments document that even with substantial Fe oxidation, the REEs remain dissolved in acid, sulfate waters with pH below 5.1. Between pH 5.1 and 6.6 the REEs partitioned to the solid phases in the water column, and heavy REEs were preferentially removed compared to light REEs. Laboratory experiments corroborated field data with the most solid-phase partitioning occurring in the waters with the highest pH. JF - Applied Geochemistry AU - Verplanck, P L AU - Nordstrom, D K AU - Taylor, HE AU - Kimball, BA AD - US Geological Survey, Water Resources Division, 3215 Marine Street, Boulder, CO 80303, USA, plv@usgs.gov Y1 - 2004/08// PY - 2004 DA - Aug 2004 SP - 1339 EP - 1354 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 19 IS - 8 SN - 0883-2927, 0883-2927 KW - Pollution Abstracts KW - Oxidation KW - Geochemistry KW - Mine water KW - Precipitation KW - Acidity KW - Iron KW - P 3000:SEWAGE & WASTEWATER TREATMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16177481?accountid=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=Applied+Geochemistry&rft.atitle=Rare+earth+element+partitioning+between+hydrous+ferric+oxides+and+acid+mine+water+during+iron+oxidation&rft.au=Verplanck%2C+P+L%3BNordstrom%2C+D+K%3BTaylor%2C+HE%3BKimball%2C+BA&rft.aulast=Verplanck&rft.aufirst=P&rft.date=2004-08-01&rft.volume=19&rft.issue=8&rft.spage=1339&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/10.1016%2Fj.apgeochem.2004.01.016 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Geochemistry; Oxidation; Mine water; Precipitation; Acidity; Iron DO - http://dx.doi.org/10.1016/j.apgeochem.2004.01.016 ER - TY - JOUR T1 - Limited infection upon human exposure to a recombinant raccoon pox vaccine vector. AN - 66700500; 15246608 AB - A laboratory accident resulted in human exposure to a recombinant raccoon poxvirus (RCN) developed as a vaccine vector for antigens of Yersinia pestis for protection of wild rodents (and other animals) against plague. Within 9 days, the patient developed a small blister that healed within 4 weeks. Raccoon poxvirus was cultured from the lesion, and the patient developed antibody to plague antigen (F1) and RCN. This is the first documented case of human exposure to RCN. JF - Vaccine AU - Rocke, Tonie E AU - Dein, F Joshua AU - Fuchsberger, Martina AU - Fox, Barry C AU - Stinchcomb, Dan T AU - Osorio, Jorge E AD - USGS National Wildlife Health Center, 6006 Schroeder Road, Madison, WI 53711, USA. tonie_rocke@usgs.gov Y1 - 2004/07/29/ PY - 2004 DA - 2004 Jul 29 SP - 2757 EP - 2760 VL - 22 IS - 21-22 SN - 0264-410X, 0264-410X KW - Antibodies, Viral KW - 0 KW - Vaccines, DNA KW - Vaccines, Synthetic KW - Viral Vaccines KW - Index Medicus KW - Animals KW - Vaccines, DNA -- immunology KW - Humans KW - Laboratories KW - Mice KW - Reverse Transcriptase Polymerase Chain Reaction KW - Raccoons KW - Antibodies, Viral -- analysis KW - Antibodies, Viral -- biosynthesis KW - Genetic Vectors KW - Vaccines, Synthetic -- immunology KW - Adult KW - Plague -- immunology KW - Accidents, Occupational KW - Female KW - Yersinia pestis -- immunology KW - Poxviridae Infections -- immunology KW - Viral Vaccines -- immunology KW - Poxviridae -- immunology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66700500?accountid=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=Vaccine&rft.atitle=Limited+infection+upon+human+exposure+to+a+recombinant+raccoon+pox+vaccine+vector.&rft.au=Rocke%2C+Tonie+E%3BDein%2C+F+Joshua%3BFuchsberger%2C+Martina%3BFox%2C+Barry+C%3BStinchcomb%2C+Dan+T%3BOsorio%2C+Jorge+E&rft.aulast=Rocke&rft.aufirst=Tonie&rft.date=2004-07-29&rft.volume=22&rft.issue=21-22&rft.spage=2757&rft.isbn=&rft.btitle=&rft.title=Vaccine&rft.issn=0264410X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-10-18 N1 - Date created - 2004-07-12 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Urban contribution of pharmaceuticals and other organic wastewater contaminants to streams during differing flow conditions. AN - 66655053; 15207578 AB - During 2001, 76 water samples were collected upstream and downstream of select towns and cities in Iowa during high-, normal- and low-flow conditions to determine the contribution of urban centers to concentrations of pharmaceuticals and other organic wastewater contaminants (OWCs) in streams under varying flow conditions. The towns ranged in population from approximately 2000 to 200,000. Overall, one or more OWCs were detected in 98.7% of the samples collected, with 62 of the 105 compounds being found. The most frequently detected compounds were metolachlor (pesticide), cholesterol (plant and animal sterol), caffeine (stimulant), beta-sitosterol (plant sterol) and 1,7-dimethylxanthine (caffeine degradate). The number of OWCs detected decreased as streamflow increased from low- (51 compounds detected) to normal- (28) to high-flow (24) conditions. Antibiotics and other prescription drugs were only frequently detected during low-flow conditions. During low-flow conditions, 15 compounds (out of the 23) and ten compound groups (out of 11) detected in more than 10% of the streams sampled had significantly greater concentrations in samples collected downstream than in those collected upstream of the urban centers. Conversely, no significant differences in the concentrations were found during high-flow conditions. Thus, the urban contribution of OWCs to streams became progressively muted as streamflow increased. Copyright 2004 Elsevier B.V. JF - The Science of the total environment AU - Kolpin, Dana W AU - Skopec, Mary AU - Meyer, Michael T AU - Furlong, Edward T AU - Zaugg, Steven D AD - U.S. Geological Survey, 400 S. Clinton Street, Iowa City, IA 52244, USA. dwkolpin@usgs.gov Y1 - 2004/07/26/ PY - 2004 DA - 2004 Jul 26 SP - 119 EP - 130 VL - 328 IS - 1-3 SN - 0048-9697, 0048-9697 KW - Pharmaceutical Preparations KW - 0 KW - Index Medicus KW - Mass Spectrometry KW - Chromatography, Liquid KW - Iowa KW - Cities KW - Waste Disposal, Fluid KW - Rivers -- chemistry KW - Environmental Monitoring -- statistics & numerical data KW - Pharmaceutical Preparations -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66655053?accountid=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=Urban+contribution+of+pharmaceuticals+and+other+organic+wastewater+contaminants+to+streams+during+differing+flow+conditions.&rft.au=Kolpin%2C+Dana+W%3BSkopec%2C+Mary%3BMeyer%2C+Michael+T%3BFurlong%2C+Edward+T%3BZaugg%2C+Steven+D&rft.aulast=Kolpin&rft.aufirst=Dana&rft.date=2004-07-26&rft.volume=328&rft.issue=1-3&rft.spage=119&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 - 2004-08-25 N1 - Date created - 2004-06-21 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Mercury and methylmercury concentrations and loads in the Cache Creek watershed, California. AN - 71981650; 15172583 AB - Concentrations and loads of total mercury and methylmercury were measured in streams draining abandoned mercury mines and in the proximity of geothermal discharge in the Cache Creek watershed of California during a 17-month period from January 2000 through May 2001. Rainfall and runoff were lower than long-term averages during the study period. The greatest loading of mercury and methylmercury from upstream sources to downstream receiving waters, such as San Francisco Bay, generally occurred during or after winter rainfall events. During the study period, loads of mercury and methylmercury from geothermal sources tended to be greater than those from abandoned mining areas, a pattern attributable to the lack of large precipitation events capable of mobilizing significant amounts of either mercury-laden sediment or dissolved mercury and methylmercury from mine waste. Streambed sediments of Cache Creek are a significant source of mercury and methylmercury to downstream receiving bodies of water. Much of the mercury in these sediments is the result of deposition over the last 100-150 years by either storm-water runoff, from abandoned mines, or continuous discharges from geothermal areas. Several geochemical constituents were useful as natural tracers for mining and geothermal areas, including the aqueous concentrations of boron, chloride, lithium and sulfate, and the stable isotopes of hydrogen and oxygen in water. Stable isotopes of water in areas draining geothermal discharges showed a distinct trend toward enrichment of (18)O compared with meteoric waters, whereas much of the runoff from abandoned mines indicated a stable isotopic pattern more consistent with local meteoric water. JF - The Science of the total environment AU - Domagalski, Joseph L AU - Alpers, Charles N AU - Slotton, Darell G AU - Suchanek, Thomas H AU - Ayers, Shaun M AD - US Geological Survey, Placer Hall, 6000 J Street, Sacramento, CA 95819-6129, USA. joed@usgs.gov Y1 - 2004/07/05/ PY - 2004 DA - 2004 Jul 05 SP - 215 EP - 237 VL - 327 IS - 1-3 SN - 0048-9697, 0048-9697 KW - Chlorides KW - 0 KW - Methylmercury Compounds KW - Oxygen Isotopes KW - Sulfates KW - Water Pollutants, Chemical KW - Hydrogen KW - 7YNJ3PO35Z KW - Lithium KW - 9FN79X2M3F KW - Mercury KW - FXS1BY2PGL KW - Boron KW - N9E3X5056Q KW - Index Medicus KW - California KW - Boron -- analysis KW - Mass Spectrometry KW - Fluorescence KW - Sulfates -- analysis KW - Chlorides -- analysis KW - Seasons KW - Oxygen Isotopes -- analysis KW - Rain KW - Mining KW - Hydrogen -- analysis KW - Lithium -- analysis KW - Water Pollutants, Chemical -- analysis KW - Mercury -- analysis KW - Rivers -- chemistry KW - Environmental Monitoring -- statistics & numerical data KW - Methylmercury Compounds -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71981650?accountid=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+and+methylmercury+concentrations+and+loads+in+the+Cache+Creek+watershed%2C+California.&rft.au=Domagalski%2C+Joseph+L%3BAlpers%2C+Charles+N%3BSlotton%2C+Darell+G%3BSuchanek%2C+Thomas+H%3BAyers%2C+Shaun+M&rft.aulast=Domagalski&rft.aufirst=Joseph&rft.date=2004-07-05&rft.volume=327&rft.issue=1-3&rft.spage=215&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 - 2004-08-06 N1 - Date created - 2004-06-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Use of PRD1 bacteriophage in groundwater viral transport, inactivation, and attachment studies. AN - 67310564; 19712379 AB - PRD1, an icosahedra-shaped, 62 nm (diameter), double-stranded DNA bacteriophage with an internal membrane, has emerged as an important model virus for studying the manner in which microorganisms are transported through a variety of groundwater environments. The popularity of this phage for use in transport studies involving geologic media is due, in part, to its relative stability over a range of temperatures and low degree of attachment in aquifer sediments. Laboratory and field investigations employing PRD1 are leading to a better understanding of viral attachment and transport behaviors in saturated geologic media and to improved methods for describing mathematically subsurface microbial transport at environmentally significant field scales. Radioisotopic labeling of PRD1 is facilitating additional information about the nature of viral interactions with solid surfaces in geologic media, the importance of iron oxide surfaces, and allowing differentiation between inactivation and attachment in field-scale tracer tests. JF - FEMS microbiology ecology AU - Harvey, Ronald W AU - Ryan, Joseph N AD - US Geological Survey, 3215 Marine St., Suite E-127, Boulder, CO 80303, USA. rwharvey@usgs.gov Y1 - 2004/07/01/ PY - 2004 DA - 2004 Jul 01 SP - 3 EP - 16 VL - 49 IS - 1 KW - Ferric Compounds KW - 0 KW - ferric oxide KW - 1K09F3G675 KW - Index Medicus KW - Virus Inactivation KW - Geologic Sediments -- microbiology KW - Water Movements KW - Ferric Compounds -- chemistry KW - Bacteriophage PRD1 KW - Water Microbiology KW - Environmental Monitoring -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67310564?accountid=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=FEMS+microbiology+ecology&rft.atitle=Use+of+PRD1+bacteriophage+in+groundwater+viral+transport%2C+inactivation%2C+and+attachment+studies.&rft.au=Harvey%2C+Ronald+W%3BRyan%2C+Joseph+N&rft.aulast=Harvey&rft.aufirst=Ronald&rft.date=2004-07-01&rft.volume=49&rft.issue=1&rft.spage=3&rft.isbn=&rft.btitle=&rft.title=Guidebook+-+New+Mexico+Geological+Society&rft.issn=00778567&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2009-09-01 N1 - Date created - 2009-08-28 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 DO - http://dx.doi.org/10.1016/j.femsec.2003.09.015 ER - TY - JOUR T1 - Contaminant exposure and reproductive success of ospreys (Pandion haliaetus) nesting in Chesapeake Bay regions of concern. AN - 66844727; 15346786 AB - The Chesapeake Bay osprey population has more than doubled in size since restrictions were placed on the production and use of DDT and other toxic organochlorine contaminants in the 1970s. Ospreys are now nesting in the most highly polluted portions of the Bay. In 2000 and 2001, contaminant exposure and reproduction were monitored in ospreys nesting in regions of concern, including Baltimore Harbor and the Patapsco River, the Anacostia and middle Potomac rivers, and the Elizabeth River, and a presumed reference site consisting of the South, West, and Rhode rivers. A "sample egg" from each study nest was collected for contaminant analysis, and the fate of eggs remaining in each nest (n = 14-16/site) was monitored at 7- to 10-day intervals from egg incubation through fledging of young. Ospreys fledged young in regions of concern (observed success: 0.88-1.53 fledglings/active nest), although productivity was marginal for sustaining local populations in Baltimore Harbor and the Patapsco River and in the Anacostia and middle Potomac rivers. Concentrations of p,p'-DDE and many other organochlorine pesticides or metabolites, total PCBs, some arylhydrocarbon receptor-active PCB congeners and polybrominated diphenyl ether congeners, and perfluorooctanesulfonate were often greater in sample eggs from regions of concern compared to the reference site. Nonetheless, logistic regression analyses did not provide evidence linking marginal productivity to p,p'-DDE, total PCBs, or arylhydrocarbon receptor-active PCB congener exposure in regions of concern. In view of the moderate concentrations of total PCBs in eggs from the reference site, concerns related to new and emerging toxicants, and the absence of ecotoxicological data for terrestrial vertebrates in many Bay tributaries, a more thorough spatial evaluation of contaminant exposure in ospreys throughout the Chesapeake may be warranted. JF - Archives of environmental contamination and toxicology AU - Rattner, B A AU - McGowan, P C AU - Golden, N H AU - Hatfield, J S AU - Toschik, P C AU - Lukei, R F AU - Hale, R C AU - Schmitz-Afonso, I AU - Rice, C P AD - U.S. Geological Survey, Patuxent Wildlife Research Center, 12011 Beech Forest Road, Laurel, MD 20708, USA. Barnett_Rattner@USGS.gov Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 126 EP - 140 VL - 47 IS - 1 SN - 0090-4341, 0090-4341 KW - Environmental Pollutants KW - 0 KW - Insecticides KW - Polychlorinated Biphenyls KW - DFC2HB4I0K KW - Index Medicus KW - Environmental Monitoring KW - Ecosystem KW - Regression Analysis KW - Animals KW - Virginia KW - Population Dynamics KW - Tissue Distribution KW - Maryland KW - Male KW - Female KW - Raptors -- physiology KW - Insecticides -- poisoning KW - Environmental Pollutants -- poisoning KW - Polychlorinated Biphenyls -- poisoning KW - Polychlorinated Biphenyls -- analysis KW - Environmental Pollutants -- analysis KW - Insecticides -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66844727?accountid=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=Contaminant+exposure+and+reproductive+success+of+ospreys+%28Pandion+haliaetus%29+nesting+in+Chesapeake+Bay+regions+of+concern.&rft.au=Rattner%2C+B+A%3BMcGowan%2C+P+C%3BGolden%2C+N+H%3BHatfield%2C+J+S%3BToschik%2C+P+C%3BLukei%2C+R+F%3BHale%2C+R+C%3BSchmitz-Afonso%2C+I%3BRice%2C+C+P&rft.aulast=Rattner&rft.aufirst=B&rft.date=2004-07-01&rft.volume=47&rft.issue=1&rft.spage=126&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 - 2004-09-21 N1 - Date created - 2004-09-06 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Gas-partitioning tracer test to quantify trapped gas during recharge. AN - 66799012; 15318781 AB - Dissolved helium and bromide tracers were used to evaluate trapped gas during an infiltration pond experiment. Dissolved helium preferentially partitioned into trapped gas bubbles, or other pore air, because of its low solubility in water. This produced observed helium retardation factors of as much as 12 relative to bromide. Numerical simulations of helium breakthrough with both equilibrium and kinetically limited advection/dispersion/retardation did not match observed helium concentrations. However, better fits were obtained by including a decay term representing the diffusive loss of helium through interconnected, gas-filled pores. Calculations indicate that 7% to more than 26% of the porosity beneath the pond was filled with gas. Measurements of laboratory hydraulic properties indicate that a 10% decrease in saturation would reduce the hydraulic conductivity by at least one order of magnitude in the well-sorted sandstone, but less in the overlying soils. This is consistent with in situ measurements during the experiment, which show steeper hydraulic gradients in sandstone than in soil. Intrinsic permeability of the soil doubled during the first six months of the experiment, likely caused by a combination of dissolution and thermal contraction of trapped gas. Managers of artificial recharge basins may consider minimizing the amount of trapped gas by using wet, rather than dry, tilling to optimize infiltration rates, particularly in well-sorted porous media in which reintroduced trapped gas may cause substantial reductions in permeability. Trapped gas may also inhibit the amount of focused infiltration that occurs naturally during ephemeral flood events along washes and playas. JF - Ground water AU - Heilweil, Victor M AU - Solomon, D Kip AU - Perkins, Kim S AU - Ellett, Kevin M AD - US Geological Survey, 2329 Orton Circle, Salt Lake City, UT 84119, USA. heilweil@usgs.gov PY - 2004 SP - 589 EP - 600 VL - 42 IS - 4 SN - 0017-467X, 0017-467X KW - Bromides KW - 0 KW - Gases KW - Soil KW - Helium KW - 206GF3GB41 KW - Index Medicus KW - Solubility KW - Environmental Monitoring -- methods KW - Bromides -- analysis KW - Helium -- analysis KW - Water Movements KW - Water Supply UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66799012?accountid=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=Ground+water&rft.atitle=Gas-partitioning+tracer+test+to+quantify+trapped+gas+during+recharge.&rft.au=Heilweil%2C+Victor+M%3BSolomon%2C+D+Kip%3BPerkins%2C+Kim+S%3BEllett%2C+Kevin+M&rft.aulast=Heilweil&rft.aufirst=Victor&rft.date=2004-07-01&rft.volume=42&rft.issue=4&rft.spage=589&rft.isbn=&rft.btitle=&rft.title=Ground+water&rft.issn=0017467X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-10-26 N1 - Date created - 2004-08-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Degradates provide insight to spatial and temporal trends of herbicides in ground water. AN - 66797434; 15318782 AB - Since 1995, a network of municipal wells in Iowa, representing all major aquifer types (alluvial, bedrock/karst region, glacial drift, bedrock/nonkarst region), has been repeatedly sampled for a broad suite of herbicide compounds yielding one of the most comprehensive statewide databases of such compounds currently available in the United States. This dataset is ideal for documenting the insight that herbicide degradates provide to the spatial and temporal distribution of herbicides in ground water. During 2001, 86 municipal wells in Iowa were sampled and analyzed for 21 herbicide parent compounds and 24 herbicide degradates. The frequency of detection increased from 17% when only herbicide parent compounds were considered to 53% when both herbicide parents and degradates were considered. Thus, the transport of herbicide compounds to ground water is substantially underestimated when herbicide degradates are not considered. A significant difference in the results among the major aquifer types was apparent only when both herbicide parent compounds and their degradates were considered. In addition, including herbicide degradates greatly improved the statistical relation to the age of the water being sampled. When herbicide parent compounds are considered, only 40% of the wells lacking a herbicide detection could be explained by the age of the water predating herbicide use. However, when herbicide degradates were also considered, 80% of the ground water samples lacking a detection could be explained by the age of the water predating herbicide use. Finally, a temporal pattern in alachlor concentrations in ground water could only be identified when alachlor degradates were considered. JF - Ground water AU - Kolpin, Dana W AU - Schnoebelen, Douglas J AU - Thurman, E Michael AD - US Geological Survey, 400 S. Clinton St., Box 1230, Iowa City, IA 52244, USA. dwkolpin@usgs.gov PY - 2004 SP - 601 EP - 608 VL - 42 IS - 4 SN - 0017-467X, 0017-467X KW - Herbicides KW - 0 KW - Soil Pollutants KW - Water Pollutants KW - Index Medicus KW - Regression Analysis KW - Kinetics KW - Databases, Factual KW - Iowa KW - Water Pollutants -- analysis KW - Water Supply -- standards KW - Herbicides -- analysis KW - Soil Pollutants -- analysis KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66797434?accountid=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=Ground+water&rft.atitle=Degradates+provide+insight+to+spatial+and+temporal+trends+of+herbicides+in+ground+water.&rft.au=Kolpin%2C+Dana+W%3BSchnoebelen%2C+Douglas+J%3BThurman%2C+E+Michael&rft.aulast=Kolpin&rft.aufirst=Dana&rft.date=2004-07-01&rft.volume=42&rft.issue=4&rft.spage=601&rft.isbn=&rft.btitle=&rft.title=Ground+water&rft.issn=0017467X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-10-26 N1 - Date created - 2004-08-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Development of a passive, in situ, integrative sampler for hydrophilic organic contaminants in aquatic environments. AN - 66670385; 15230316 AB - Increasingly it is being realized that a holistic hazard assessment of complex environmental contaminant mixtures requires data on the concentrations of hydrophilic organic contaminants including new generation pesticides, pharmaceuticals, personal care products, and many chemicals associated with household, industrial, and agricultural wastes. To address this issue, we developed a passive in situ sampling device (the polar organic chemical integrative sampler [POCIS]) that integratively concentrates trace levels of complex mixtures of hydrophilic environmental contaminants, enables the determination of their time-weighted average water concentrations, and provides a method of estimating the potential exposure of aquatic organisms to the complex mixture of waterborne contaminants. Using a prototype sampler, linear uptake of selected herbicides and pharmaceuticals with log K(ow)s < 4.0 was observed for up to 56 d. Estimation of the ambient water concentrations of chemicals of interest is achieved by using appropriate uptake models and determination of POCIS sampling rates for appropriate exposure conditions. Use of POCIS in field validation studies targeting the herbicide diuron in the United Kingdom resulted in the detection of the chemical at estimated concentrations of 190 to 600 ng/L. These values are in agreement with reported levels found in traditional grab samples taken concurrently. JF - Environmental toxicology and chemistry AU - Alvarez, David A AU - Petty, Jimmie D AU - Huckins, James N AU - Jones-Lepp, Tammy L AU - Getting, Dominic T AU - Goddard, Jon P AU - Manahan, Stanley E AD - U.S. Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, Missouri 65201, USA. dalvarez@usgs.gov Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 1640 EP - 1648 VL - 23 IS - 7 SN - 0730-7268, 0730-7268 KW - Organic Chemicals KW - 0 KW - Water Pollutants, Chemical KW - Index Medicus KW - Specimen Handling KW - Marine Biology KW - Geography KW - United Kingdom KW - Risk Assessment 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/66670385?accountid=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=Environmental+toxicology+and+chemistry&rft.atitle=Development+of+a+passive%2C+in+situ%2C+integrative+sampler+for+hydrophilic+organic+contaminants+in+aquatic+environments.&rft.au=Alvarez%2C+David+A%3BPetty%2C+Jimmie+D%3BHuckins%2C+James+N%3BJones-Lepp%2C+Tammy+L%3BGetting%2C+Dominic+T%3BGoddard%2C+Jon+P%3BManahan%2C+Stanley+E&rft.aulast=Alvarez&rft.aufirst=David&rft.date=2004-07-01&rft.volume=23&rft.issue=7&rft.spage=1640&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 completed - 2004-09-30 N1 - Date created - 2004-07-02 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Computational modeling of sediment transport processes AN - 51770857; 2005-004387 JF - Journal of Hydraulic Engineering AU - Barkdoll, Brian D AU - Duan, Jennifer G AU - Fan, Shou-shan AU - Klumpp, Cassie C AU - McAnnally, Bill AU - Papanicolaou, Thanos AU - Scott, Steve AU - Wang, Sam S Y AU - Wu, Weiming AU - Ying, Xinya Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 597 EP - 598 PB - American Society of Civil Engineers, New York, NY VL - 130 IS - 7 SN - 0733-9429, 0733-9429 KW - processes KW - experimental studies KW - numerical models KW - sediment transport KW - sedimentation KW - data processing KW - prediction KW - current research KW - physical models KW - observations KW - laboratory studies KW - digital simulation KW - accuracy KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51770857?accountid=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+Hydraulic+Engineering&rft.atitle=Computational+modeling+of+sediment+transport+processes&rft.au=Barkdoll%2C+Brian+D%3BDuan%2C+Jennifer+G%3BFan%2C+Shou-shan%3BKlumpp%2C+Cassie+C%3BMcAnnally%2C+Bill%3BPapanicolaou%2C+Thanos%3BScott%2C+Steve%3BWang%2C+Sam+S+Y%3BWu%2C+Weiming%3BYing%2C+Xinya&rft.aulast=Barkdoll&rft.aufirst=Brian&rft.date=2004-07-01&rft.volume=130&rft.issue=7&rft.spage=597&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydraulic+Engineering&rft.issn=07339429&rft_id=info:doi/ L2 - http://scitation.aip.org/hyo/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - NY N1 - SuppNotes - Report by the ASCE Task Committe of Computational Modeling of Sediment Transport Processes N1 - Last updated - 2012-06-07 N1 - CODEN - JHEND8 N1 - SubjectsTermNotLitGenreText - accuracy; current research; data processing; digital simulation; experimental studies; laboratory studies; numerical models; observations; physical models; prediction; processes; sediment transport; sedimentation ER - TY - JOUR T1 - Coal fires in Indonesia AN - 51684986; 2005-059057 AB - Indonesia's fire and haze problem is increasingly being ascribed to large-scale forest conversion and land clearing activities making way for pulpwood, rubber and oil palm plantations. Fire is the cheapest tool available to small holders and plantation owners to reduce vegetation cover and prepare and fertilize extremely poor soils. Fires that escaped from agricultural burns have ravaged East Kalimantan forests on the island of Borneo during extreme drought periods in 1982-1983, 1987, 1991, 1994 and 1997-1998. Estimates based on satellite data and ground observations are that more than five million hectares were burned in East Kalimantan during the 1997/1998 dry season. Not only were the economic losses and ecological damage from these surface fires enormous, they ignited coal seams exposed at the ground surface along their outcrops. Coal fires now threaten Indonesia's shrinking ecological resources in Kutai National Park and Sungai Wain Nature Reserve. Sungai Wain has one of the last areas of unburned primary rainforest in the Balikpapan-Samarinda area with an extremely rich biodiversity. Although fires in 1997/1998 damaged nearly 50% of this Reserve and ignited 76 coal fires, it remains the most valuable water catchment area in the region and it has been used as a reintroduction site for the endangered orangutan. The Office of Surface Mining provided Indonesia with the capability to take quick action on coal fires that presented threats to public health and safety, infrastructure or the environment. The U.S. Department of State's Southeast Asia Environmental Protection Initiative through the U.S. Agency for International Development funded the project. Technical assistance and training transferred skills in coal fire management through the Ministry of Energy and Mineral Resource's Training Agency to the regional offices; giving the regions the long-term capability to manage coal fires. Funding was also included to extinguish coal fires as demonstrations to the Indonesian Government. Successful demonstrations obtained visible benefits for a large number of local interests and received overwhelmingly favorable public response. This built the public and political support needed to continue this work. These successes encouraged the Ministry to officially assume the responsibility for coal fire management by Decree 1539/20/MPE/1999. The Ministry reallocated internal funds to support portions of the immediate suppression projects and committed a portion of the Coal Royalty Fund to provide long-term support for coal fire suppression activities. Coal fires continue to present a serious risk to Indonesia's ecosystems, population and forest resources. The Ministry and local governments in East Kalimantan are still working on the coal fire inventory. It presently contains 164 coal fires, but it is far from complete. Unless these coal fires are managed or extinguished, they will add to the already catastrophic cycle of anthropogenic forest fires that further reduce Indonesia's forest resources and endangered species while contributing unnecessarily to global carbon emissions. JF - International Journal of Coal Geology AU - Whitehouse, Alfred E AU - Mulyana, Asep A S A2 - Stracher, Glenn B. Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 91 EP - 97 PB - Elsevier, Amsterdam VL - 59 IS - 1-2 SN - 0166-5162, 0166-5162 KW - Far East KW - geologic hazards KW - Borneo KW - Indonesia KW - pollution KW - environmental effects KW - air pollution KW - history KW - fires KW - Kalimantan Indonesia KW - sedimentary rocks KW - coal KW - carbon KW - Malay Archipelago KW - Asia KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51684986?accountid=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+Journal+of+Coal+Geology&rft.atitle=Coal+fires+in+Indonesia&rft.au=Whitehouse%2C+Alfred+E%3BMulyana%2C+Asep+A+S&rft.aulast=Whitehouse&rft.aufirst=Alfred&rft.date=2004-07-01&rft.volume=59&rft.issue=1-2&rft.spage=91&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Coal+Geology&rft.issn=01665162&rft_id=info:doi/10.1016%2Fj.coal.2003.08.010 L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Conference title - Coal fires burning around the world; a global catastrophe N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - air pollution; Asia; Borneo; carbon; coal; environmental effects; Far East; fires; geologic hazards; history; Indonesia; Kalimantan Indonesia; Malay Archipelago; pollution; sedimentary rocks DO - http://dx.doi.org/10.1016/j.coal.2003.08.010 ER - TY - JOUR T1 - Geologic history of natural coal-bed fires, Powder River basin, USA AN - 51683470; 2005-059052 AB - Coal-bed fires ignited by natural processes have baked and fused overlying sediments to form clinker, a hard red or varicolored rock, through much of the northern Great Plains of the United States (USA). The gently dipping coal beds in the region burn when regional downwasting brings them above the local water table. The resulting clinker forms a rim along the exposed edge of the coal bed in an ongoing process through geologic time. The resistant clinker is left capping buttes and ridges after the softer unbaked strata erode away. Clinker outcrops cover more than 4100 km (super 2) in the Powder River basin (PRB), which lies in Wyoming (WY) and Montana (MT). The clinker in place records tens of billions of tons of coal that have burned, releasing gases into the atmosphere. The amount of clinker that has eroded away was at least an order of magnitude greater than the clinker that remains in place. Fission-track and uranium-thorium/helium ages of detrital zircon crystals in clinker, and paleomagnetic ages of clinker, show that coal beds have burned naturally during at least the past 4 million years (Ma). The oldest in-place clinker that has been dated, collected from a high, isolated, clinker-capped ridge, has a fission track age of 2.8+ or -0.6 Ma. Evidence of erosion and downcutting is also preserved by clinker clasts in gravel terraces. One clinker boulder in a terrace 360 m above the Yellowstone River has a fission track age of 4.0+ or -0.7 Ma. Coal-bed fires are caused by lightning, wildfires, spontaneous combustion, or human activity on coal outcrops and in mines. Miners, government agencies, and ranchers have extinguished thousands of coal bed fires, but natural ignition continues where fresh coal has access to air. At any given time, hundreds of fires, mostly small, are burning. In the Powder River basin, the total amount of coal burned by natural fires in the last 2 Ma is one to two orders of magnitude greater than the total amount of coal removed by mining in the past century. However, current annual rates of coal mining are three to four orders of magnitude greater than estimated prehistoric annual rates of coal consumption by natural fires. JF - International Journal of Coal Geology AU - Heffern, E L AU - Coates, D A A2 - Stracher, Glenn B. Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 25 EP - 47 PB - Elsevier, Amsterdam VL - 59 IS - 1-2 SN - 0166-5162, 0166-5162 KW - United States KW - geologic hazards KW - combustion KW - Montana KW - history KW - fires KW - clinker KW - Wyoming KW - sedimentary rocks KW - fission tracks KW - coal KW - Powder River basin KW - 06B:Petrology of coal UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51683470?accountid=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+Journal+of+Coal+Geology&rft.atitle=Geologic+history+of+natural+coal-bed+fires%2C+Powder+River+basin%2C+USA&rft.au=Heffern%2C+E+L%3BCoates%2C+D+A&rft.aulast=Heffern&rft.aufirst=E&rft.date=2004-07-01&rft.volume=59&rft.issue=1-2&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Coal+Geology&rft.issn=01665162&rft_id=info:doi/10.1016%2Fj.coal.2003.07.002 L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Conference title - Coal fires burning around the world; a global catastrophe N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 42 N1 - Document feature - illus. incl. sects., geol. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - clinker; coal; combustion; fires; fission tracks; geologic hazards; history; Montana; Powder River basin; sedimentary rocks; United States; Wyoming DO - http://dx.doi.org/10.1016/j.coal.2003.07.002 ER - TY - JOUR T1 - Susceptibility of the leaf-eating beetle, Galerucella calmariensis, a biological control agent for purple loosestrife (Lythrum salcaria) to three mosquito control larvicides AN - 19804010; 6007851 AB - We evaluated the susceptibility of Galerucella calmariensis, a species used to control purple loosestrife (Lythrum salicaria), to three mosquito control larvicides. Larvae and adults were fed loosestrife cuttings dipped in Abate ( less than or equal to 375 g times L super(-1)), Altosid ( less than or equal to 250 g times L super(-1)), and Bacillus thuringiensis var israeliensis (Bti) ( less than or equal to 110 g times L super(-1)). Eggs on cuttings were dipped in the same concentrations. Pupae were immersed in Abate and Altosid solutions ( less than or equal to 474.4 mu g times L super(-1) and less than or equal to 1,169.2 mu g times L super(-1), respectively). Hatching success of eggs dipped in Abate ( greater than or equal to 3.75 g times L super(-1)) was reduced significantly and survival was significantly lower among larvae and adults eating cuttings dipped in Abate ( greater than or equal to 0.17 g times L super(-1) and greater than or equal to 2.27 g times L super(-1), respectively). Hatching success of eggs dipped in Altosid ( greater than or equal to 2.52 g times L super(-1)) was reduced significantly. With exposure to Altosid, larval survival to pupation and adult emergence was reduced significantly at concentrations of greater than or equal to 2.92 g times L super(-1) and greater than or equal to 0.63 g times L super(-1), respectively. Altosid ( greater than or equal to 0.23 g times L super(-1)) also delayed the onset of pupation and adult emergence among larvae that survived to pupate. Larvae that survived with exposure to Altosid ( greater than or equal to 1.72 g times L super(-1)) grew to 70% larger than those exposed to lower concentrations. Pupal survival was unaffected with exposure to Abate and Altosid and adult survival was unaffected with exposure to Altosid. Bacillus thuringiensis var israeliensis did not adversely affect any life stage of G. calmariensis. The mean Abate concentration on cuttings exposed to operational spraying was in the range that reduced egg hatchability and adult survival but was higher than concentrations that caused complete mortality of larvae. The mean Altosid concentration on cuttings exposed to operational spraying was in the range that reduced hatching success in eggs and delayed pupation and adult emergence of larvae. JF - Environmental Toxicology and Chemistry AU - Lowe, T P AU - Hershberger, T D AD - U.S. Geological Survey Patuxent Wildlife Research Center, 11510 American Holly Drive, Laurel, Maryland 20708-4017, peter_lowe@usgs.gov Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 1662 EP - 1671 VL - 23 IS - 7 SN - 0730-7268, 0730-7268 KW - Abate KW - Altosid KW - Coleoptera KW - Diptera KW - Mosquitoes KW - Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts; Toxicology Abstracts; Entomology Abstracts KW - Biological control KW - Mortality KW - Galerucella calmariensis KW - Bacillus thuringiensis KW - Chemical control KW - Larvae KW - Survival KW - Developmental stages KW - Culicidae KW - Pest control KW - Pupation KW - Spraying KW - Eggs KW - Lythrum KW - Lythrum salicaria KW - Hatchability KW - Toxicity testing KW - Hatching KW - Larvicides KW - J 02410:Animal Diseases KW - A 01370:Biological Control KW - Z 05183:Toxicology & resistance KW - P 6000:TOXICOLOGY AND HEALTH KW - X 24136:Environmental impact UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19804010?accountid=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=Environmental+Toxicology+and+Chemistry&rft.atitle=Susceptibility+of+the+leaf-eating+beetle%2C+Galerucella+calmariensis%2C+a+biological+control+agent+for+purple+loosestrife+%28Lythrum+salcaria%29+to+three+mosquito+control+larvicides&rft.au=Lowe%2C+T+P%3BHershberger%2C+T+D&rft.aulast=Lowe&rft.aufirst=T&rft.date=2004-07-01&rft.volume=23&rft.issue=7&rft.spage=1662&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 - 2004-10-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Biological control; Mortality; Chemical control; Developmental stages; Hatchability; Survival; Pupation; Spraying; Hatching; Toxicity testing; Eggs; Larvicides; Larvae; Pest control; Lythrum; Galerucella calmariensis; Bacillus thuringiensis; Lythrum salicaria; Culicidae ER - TY - JOUR T1 - Lead Shot Poisoning of a Pacific Loon in Alaska AN - 19771379; 6120409 AB - Lead poisoning, associated with ingestion of spent lead shot, was diagnosed in an adult female Pacific loon (Gavia pacifica) observed with partial paralysis on 13 June 2002 and found dead on 16 June 2002 on Kigigak Island, Yukon Delta National Wildlife Refuge, western Alaska, USA. A necropsy revealed three pellets of ingested lead shot in the loon's gizzard and a lead liver concentration of 31 ppm wet weight, which was consistent with metallic lead poisoning. This is the first report of lead poisoning in a Pacific loon and is the only account of lead toxicosis associated with ingestion of lead shot in any loon species breeding in Alaska. JF - Journal of Wildlife Diseases AU - Wilson, H M AU - Oyen, J L AU - Sileo, L AD - United States Geological Survey, Alaska Science Center, 1011 East Tudor Road, Anchorage, Alaska 99503, USA, fthmw@uaf.edu Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 600 EP - 602 PB - Allen Press, Inc., 810 East Tenth St. Lawrence KS 66044 USA, [mailto:webmaster@allenpress.com], [URL:http://www.allenpress.com] VL - 40 IS - 3 SN - 0090-3558, 0090-3558 KW - Ecology Abstracts KW - Paralysis KW - Autopsy KW - Islands KW - Breeding KW - toxicosis KW - Poisoning KW - Gavia pacifica KW - Gizzard KW - Lead KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19771379?accountid=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+Diseases&rft.atitle=Lead+Shot+Poisoning+of+a+Pacific+Loon+in+Alaska&rft.au=Wilson%2C+H+M%3BOyen%2C+J+L%3BSileo%2C+L&rft.aulast=Wilson&rft.aufirst=H&rft.date=2004-07-01&rft.volume=40&rft.issue=3&rft.spage=600&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 revised - 2009-05-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Gavia pacifica; Lead; Poisoning; Paralysis; Autopsy; Islands; Breeding; Gizzard; toxicosis ER - TY - JOUR T1 - Preservation of water samples for arsenic(III/V) determinations: an evaluation of the literature and new analytical results AN - 19400576; 5891450 AB - Published literature on preservation procedures for stabilizing aqueous inorganic As(III/V) redox species contains discrepancies. This study critically evaluates published reports on As redox preservation and explains discrepancies in the literature. Synthetic laboratory preservation experiments and time stability experiments were conducted for natural water samples from several field sites. Any field collection procedure that filters out microorganisms, adds a reagent that prevents dissolved Fe and Mn oxidation and precipitation, and isolates the sample from solar radiation will preserve the As(III/V) ratio. Reagents that prevent Fe and Mn oxidation and precipitation include HCl, H sub(2)SO sub(4), and EDTA, although extremely high concentrations of EDTA are necessary for some water samples high in Fe. Photo-catalyzed Fe(III) reduction causes As(III) oxidation; however, storing the sample in the dark prevents photochemical reactions. Furthermore, the presence of Fe(II) or SO sub(4) inhibits the oxidation of As(III) by Fe(III) because of complexation reactions and competing reactions with free radicals. Consequently, fast abiotic As(III) oxidation reactions observed in the laboratory are not observed in natural water samples for one or more of the following reasons: (1) the As redox species have already stabilized, (2) most natural waters contain very low dissolved Fe(III) concentrations, (3) the As(III) oxidation caused by Fe(III) photoreduction is inhibited by Fe(II) or SO sub(4). JF - Applied Geochemistry AU - McCleskey, R B AU - Nordstrom, D K AU - Maest, A S AD - US Geological Survey, 3215 Marine St. Suite E. 127, Boulder, CO 80303, USA, dkn@usgs.gov Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 995 EP - 1009 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl] VL - 19 IS - 7 SN - 0883-2927, 0883-2927 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Aqualine Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Photochemistry KW - Reagents KW - Water Sampling KW - Water analysis KW - Evaluation KW - Manganese KW - Laboratories KW - Free radicals KW - Stabilizing KW - Methodology KW - Literature reviews KW - Oxidation KW - Microorganisms KW - Water samples KW - Preservation KW - Sample Preservation KW - Iron KW - Edetic acid KW - Photoreduction KW - Water Analysis KW - Solar radiation KW - Photochemical reactions KW - Redox reactions KW - Arsenic KW - Pollution detection KW - Geochemistry KW - Precipitation KW - Light effects KW - Natural Waters KW - Filters KW - Storage conditions KW - Analytical techniques KW - SW 3010:Identification of pollutants KW - P 2000:FRESHWATER POLLUTION KW - Q5 08502:Methods and instruments KW - AQ 00003:Monitoring and Analysis of Water and Wastes KW - A 01300:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19400576?accountid=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=Preservation+of+water+samples+for+arsenic%28III%2FV%29+determinations%3A+an+evaluation+of+the+literature+and+new+analytical+results&rft.au=McCleskey%2C+R+B%3BNordstrom%2C+D+K%3BMaest%2C+A+S&rft.aulast=McCleskey&rft.aufirst=R&rft.date=2004-07-01&rft.volume=19&rft.issue=7&rft.spage=995&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/10.1016%2Fj.apgeochem.2004.01.003 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-01-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Redox reactions; Arsenic; Pollution detection; Geochemistry; Solar radiation; Stabilizing; Water analysis; Light effects; Methodology; Literature reviews; Storage conditions; Analytical techniques; Water samples; Microorganisms; Iron; Photochemical reactions; Filters; Photoreduction; Free radicals; Oxidation; Precipitation; Preservation; Manganese; Edetic acid; Photochemistry; Evaluation; Natural Waters; Reagents; Water Analysis; Laboratories; Water Sampling; Sample Preservation DO - http://dx.doi.org/10.1016/j.apgeochem.2004.01.003 ER - TY - JOUR T1 - Changes in the Proportion of Precipitation Occurring as Snow in New England (1949-2000) AN - 18057578; 5988755 AB - The ratio of snow to total precipitation (S /P ) is a hydrologic indicator that is sensitive to climate variability and can be used to detect and monitor hydrologic responses to climatic change. Changes in S /P ratio over time could influence the magnitude and timing of spring runoff and recession to summer baseflow. The S /P ratio for 21 U.S. Historical Climatology Network sites in New England was examined. Eleven out of twenty-one sites in New England had significant decreasing annual S /P ratios from 1949 to 2000. Annual trends in S /P are predominantly a result of decreasing snowfall, and to a lesser extent, increasing rainfall. The most consistent trends were in northernmost New England where all four sites had decreasing ratios, and in the coastal and near-coastal areas where five out of eight sites had significantly decreasing ratios. The four sites in northernmost New England, which had the strongest and most coherent trends, showed an average decrease in annual S /P ratio from about 0.30 in 1949 to 0.23 in 2000. Trends in winter S /P ratio were less geographically consistent. Seven out of 21 sites had significantly decreasing winter S /P ratios. Most northern New England and coastal to near-coastal sites had statistically significant trends (p < 0.05) or weak, but not significant trends (p < 0.2). When trends in S /P were analyzed on a monthly basis for the northernmost sites, it was evident that decreasing S /P trends were significant for March and December only. Significant correlations were observed between winter S /P ratios in northern New England and the timing of spring runoff, the North Atlantic Oscillation (NAO) index, and the Pacific-North American (PNA) index. Significant correlations were observed between winter S /P ratios averaged for all of New England and the NAO and PNA. JF - Journal of Climate AU - Huntington, T G AU - Hodgkins, G A AU - Keim, B D AU - Dudley, R W AD - U.S. Geological Survey, 196 Whitten Rd., Augusta, ME 04330, thunting@usgs.gov Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 2626 EP - 2636 PB - American Meteorological Society VL - 17 IS - 13 SN - 0894-8755, 0894-8755 KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts KW - North Atlantic Oscillation KW - Climatic effects KW - Variability KW - Snow KW - Pacific/North American (PNA) pattern KW - Precipitation trends KW - Rainfall KW - Precipitation KW - ANW, USA, New England KW - Hydrometeorological research KW - Climatic variability KW - USA, New England KW - Climatic Changes KW - Hydrology KW - Winter precipitation KW - Climatology KW - SW 0820:Snow, ice and frost KW - M2 551.578.4:Crystalline (551.578.4) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18057578?accountid=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+Climate&rft.atitle=Changes+in+the+Proportion+of+Precipitation+Occurring+as+Snow+in+New+England+%281949-2000%29&rft.au=Huntington%2C+T+G%3BHodgkins%2C+G+A%3BKeim%2C+B+D%3BDudley%2C+R+W&rft.aulast=Huntington&rft.aufirst=T&rft.date=2004-07-01&rft.volume=17&rft.issue=13&rft.spage=2626&rft.isbn=&rft.btitle=&rft.title=Journal+of+Climate&rft.issn=08948755&rft_id=info:doi/10.1175%2F1520-0442%282004%29017%282626%3ACITPOP%292.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0894-8755&volume=17&page=2626 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Precipitation; Snow; Hydrology; Climatic Changes; Variability; Climatology; Rainfall; ANW, USA, New England; USA, New England; Winter precipitation; Climatic variability; Climatic effects; Precipitation trends; Hydrometeorological research; North Atlantic Oscillation; Pacific/North American (PNA) pattern DO - http://dx.doi.org/10.1175/1520-0442(2004)017(2626:CITPOP)2.0.CO;2 ER - TY - JOUR T1 - Influence of volcanic activity on the population genetic structure of Hawaiian Tetragnatha spiders: fragmentation, rapid population growth and the potential for accelerated evolution AN - 18047173; 5966705 AB - Volcanic activity on the island of Hawaii results in a cyclical pattern of habitat destruction and fragmentation by lava, followed by habitat regeneration on newly formed substrates. While this pattern has been hypothesized to promote the diversification of Hawaiian lineages, there have been few attempts to link geological processes to measurable changes in population structure. We investigated the genetic structure of three species of Hawaiian spiders in forests fragmented by a 150-year-old lava flow on Mauna Loa Volcano, island of Hawaii: Tetragnatha quasimodo (forest and lava flow generalist), T. anuenue and T. brevignatha (forest specialists). To estimate fragmentation effects on population subdivision in each species, we examined variation in mitochondrial and nuclear genomes (DNA sequences and allozymes, respectively). Population subdivision was higher for forest specialists than for the generalist in fragments separated by lava. Patterns of mtDNA sequence evolution also revealed that forest specialists have undergone rapid expansion, while the generalist has experienced more gradual population growth. Results confirm that patterns of neutral genetic variation reflect patterns of volcanic activity in some Tetragnatha species. Our study further suggests that population subdivision and expansion can occur across small spatial and temporal scales, which may facilitate the rapid spread of new character states, leading to speciation as hypothesized by H. L. Carson 30 years ago. JF - Molecular Ecology AU - Vandergast, A G AU - Gillespie, R G AU - Roderick, G K AD - USGS Western Ecological Research Center, San Diego Field Station, 5745 Kearny Villa Road, Suite M, San Diego CA 92123, USA, avandergast@usgs.gov Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 1729 EP - 1743 PB - Blackwell Science Ltd VL - 13 IS - 7 SN - 0962-1083, 0962-1083 KW - Ecology Abstracts; Genetics Abstracts; Entomology Abstracts KW - Nucleotide sequence KW - Tetragnathidae KW - Tetragnatha quasimodo KW - Habitat fragmentation KW - Population genetics KW - Islands KW - Evolutionary genetics KW - USA, Hawaii KW - Recolonization KW - Volcanoes KW - Ecological genetics KW - Tetragnatha brevignatha KW - Mitochondrial DNA KW - Tetragnatha anuenue KW - Genetic structure KW - G 07270:Ecological genetics KW - D 04660:Arachnids KW - G 07366:Insects/arachnids KW - Z 05219:Population genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18047173?accountid=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=Influence+of+volcanic+activity+on+the+population+genetic+structure+of+Hawaiian+Tetragnatha+spiders%3A+fragmentation%2C+rapid+population+growth+and+the+potential+for+accelerated+evolution&rft.au=Vandergast%2C+A+G%3BGillespie%2C+R+G%3BRoderick%2C+G+K&rft.aulast=Vandergast&rft.aufirst=A&rft.date=2004-07-01&rft.volume=13&rft.issue=7&rft.spage=1729&rft.isbn=&rft.btitle=&rft.title=Molecular+Ecology&rft.issn=09621083&rft_id=info:doi/10.1111%2Fj.1365-294X.2004.02179.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Tetragnathidae; Tetragnatha quasimodo; Tetragnatha anuenue; Tetragnatha brevignatha; USA, Hawaii; Population genetics; Islands; Volcanoes; Evolutionary genetics; Habitat fragmentation; Recolonization; Genetic structure; Mitochondrial DNA; Ecological genetics; Nucleotide sequence DO - http://dx.doi.org/10.1111/j.1365-294X.2004.02179.x ER - TY - JOUR T1 - Effects of Invasive Alien Plants on Fire Regimes AN - 18017591; 5958701 AB - Plant invasions are widely recognized as significant threats to biodiversity conservation worldwide. One way invasions can affect native ecosystems is by changing fuel properties, which can in turn affect fire behavior and, ultimately, alter fire regime characteristics such as frequency, intensity, extent, type, and seasonality of fire. If the regime changes subsequently promote the dominance of the invaders, then an invasive plant fire regime cycle can be established. As more ecosystem components and interactions are altered, restoration of pre-invasion conditions becomes more difficult. Restoration may require managing fuel conditions, fire regimes, native plant communities, and other ecosystem properties in addition to the invaders that caused the changes in the first place. We present a multiphase model describing the interrelationships between plant invaders and fire regimes, provide a system for evaluating the relative effects of invaders and prioritizing them for control, and recommend ways to restore preinvasion fire regime properties. JF - Bioscience AU - Brooks, M L AU - D'Antonio, C M AU - Richardson, D M AU - Grace, J B AU - Keeley, JE AU - DiTomaso, J M AU - Hobbs, R J AU - Pellant, M AU - Pyke, D AD - Western Ecological Research Center, US Geological Survey (USGS), Henderson, NV 89074, USA, matt_brooks@usgs.gov Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 677 EP - 688 PB - American Institute of Biological Sciences VL - 54 IS - 7 SN - 0006-3568, 0006-3568 KW - Ecology Abstracts KW - Fires KW - Plant communities KW - Invasions KW - Environmental restoration KW - Models KW - D 04700:Management KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18017591?accountid=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=Bioscience&rft.atitle=Effects+of+Invasive+Alien+Plants+on+Fire+Regimes&rft.au=Brooks%2C+M+L%3BD%27Antonio%2C+C+M%3BRichardson%2C+D+M%3BGrace%2C+J+B%3BKeeley%2C+JE%3BDiTomaso%2C+J+M%3BHobbs%2C+R+J%3BPellant%2C+M%3BPyke%2C+D&rft.aulast=Brooks&rft.aufirst=M&rft.date=2004-07-01&rft.volume=54&rft.issue=7&rft.spage=677&rft.isbn=&rft.btitle=&rft.title=Bioscience&rft.issn=00063568&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Fires; Plant communities; Environmental restoration; Invasions; Models ER - TY - JOUR T1 - Parasite infection rates of impala (Aepyceros melampus) in fenced game reserves in relation to reserve characteristics AN - 17922247; 5879193 AB - Under certain conditions reserves can pose a threat to wildlife conservation by increasing the transmission of parasites and pathogens. In this study, I investigated associations between reserve characteristics including area, density and species richness and parasite infection rates in impala (Aepyceros melampus). Using coprological methods to measure gastrointestinal parasitism rates of impala inhabiting five fully or partially fenced game reserves in central Kenya, I found that bovid species richness was correlated with parasite taxa richness across reserves, and that prevalence rates of multi- host strongyle nematodes were higher in reserves with more species. In addition, reserve size was also implicated as a potential predictor of infection risk. Overall, these results suggest that wildlife inhabiting highly diverse and small reserves may suffer from higher than normal rates of infection. Given the potential debilitating effects increases in parasitism can have on wildlife, these results underscore the importance of considering parasite transmission dynamics in the management of small, fenced protected areas. JF - Biological Conservation AU - Ezenwa, VO AD - Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 08544-1003, USA, vezenwa@usgs.gov Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 397 EP - 401 PB - Elsevier Science Ltd., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 118 IS - 3 SN - 0006-3207, 0006-3207 KW - Impala KW - Ecology Abstracts KW - Parasites KW - Kenya KW - Nature reserves KW - Game management KW - Aepyceros melampus KW - Species richness KW - D 04672:Mammals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17922247?accountid=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=Biological+Conservation&rft.atitle=Parasite+infection+rates+of+impala+%28Aepyceros+melampus%29+in+fenced+game+reserves+in+relation+to+reserve+characteristics&rft.au=Ezenwa%2C+VO&rft.aulast=Ezenwa&rft.aufirst=VO&rft.date=2004-07-01&rft.volume=118&rft.issue=3&rft.spage=397&rft.isbn=&rft.btitle=&rft.title=Biological+Conservation&rft.issn=00063207&rft_id=info:doi/10.1016%2Fj.biocon.2003.09.016 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aepyceros melampus; Kenya; Parasites; Game management; Nature reserves; Species richness DO - http://dx.doi.org/10.1016/j.biocon.2003.09.016 ER - TY - JOUR T1 - Brown-headed Cowbird parasitism of the Black-throated Sparrow in central Arizona AN - 17770843; 6053186 AB - From 1994-1996 we investigated effects of Brown-headed Cowbird (Molothrus ater) parasitism on Black-throated Sparrow (Amphispiza bilineata) nesting success in the Verde Valley of central Arizona. Of 56 Black-throated Sparrow nests, 52% were parasitized. Black-throated Sparrows appear to respond to natural parasitism by accepting the cowbird egg, deserting the nest, or burying the cowbird egg. Removal and damage of host eggs by female cowbirds effectively reduced clutch size from an average of 3.4 to 1.9 eggs. Because of this reduced clutch size, Black-throated Sparrow reproductive success was significantly lower in parasitized nests (0.2 young fledged/ nest) as compared to nonparasitized nests (1.6 young fledged/nest). When comparing cowbird parasitism between two habitat types, we found significantly higher parasitism frequencies in crucifixion-thorn (Canotia holacantha) versus creosote-bush (Larrea divaricata) habitat. We argue that this difference in parasitism is due to the greater number of tall perches (e.g., shrubs >4 m) available in crucifixion-thorn habitat, providing vantage points for female cowbirds to better find Black-throated Sparrow nests. JF - Journal of Field Ornithology AU - Johnson, MJ AU - van Riper, C AD - USGS Southwest Biological Science Center, Colorado Plateau Research Station, Box 5614, Northern Arizona University, Flagstaff, Arizona 86011 USA Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 303 EP - 311 PB - Association of Field Ornithologists VL - 75 IS - 3 SN - 0273-8570, 0273-8570 KW - Animal Behavior Abstracts; Ecology Abstracts KW - Shrubs KW - clutch size KW - Molothrus ater KW - Habitat KW - Parasitism KW - Eggs KW - Nests KW - Amphispiza bilineata KW - Larrea KW - Canotia holacantha KW - D 04671:Birds KW - Y 25426:Birds UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17770843?accountid=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=Brown-headed+Cowbird+parasitism+of+the+Black-throated+Sparrow+in+central+Arizona&rft.au=Johnson%2C+MJ%3Bvan+Riper%2C+C&rft.aulast=Johnson&rft.aufirst=MJ&rft.date=2004-07-01&rft.volume=75&rft.issue=3&rft.spage=303&rft.isbn=&rft.btitle=&rft.title=Journal+of+Field+Ornithology&rft.issn=02738570&rft_id=info:doi/10.1043%2F0273-8570%282004%290752.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0273-8570&volume=75&page=303 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Larrea; Canotia holacantha; Molothrus ater; Amphispiza bilineata; Nests; Parasitism; Habitat; clutch size; Eggs; Shrubs DO - http://dx.doi.org/10.1043/0273-8570(2004)075<0303:BCPOTB>2.0.CO;2 ER - TY - JOUR T1 - Red Imported Fire Ant Impacts on Wildlife: A Decade of Research AN - 17765331; 6051250 AB - The negative impacts of biological invasion are economically and ecologically significant and, while incompletely quantified, they are clearly substantial. Ants (family Formicidae) are an important, although often overlooked, component of many terrestrial ecosystems. Six species of ants are especially striking in their global ability to invade, and their impacts. This paper focuses on the impacts of the most destructive of those species, the red imported fire ant (Solenopsis invicta), and focuses on impacts on native vertebrates. Red imported fire ants often become the dominant ant species in infested areas outside of their native range due to their aggressive foraging behavior, high reproductive capability and lack of predators and/or other strong competitors. The evidence suggests that mammals, birds and herpetofauna are vulnerable to negative impacts from fire ants, and some species are more likely to experience negative population-level impacts than other species. Assessing the ecological impacts of fire ants on wild animal populations is logistically difficult, and very few studies have combined replicated experimental manipulation with adequate spatial (>10 ha) and temporal (>1 y) scale. Thus, most studies have been observational, opportunistic, small-scale or 'natural' experiments. However, significant research, including an increase in experimental and mechanistic investigations, has occurred during the past decade, and this has led to information that can lead to better management of potentially affected species. JF - American Midland Naturalist AU - Allen, C R AU - Epperson, D M AU - Garmestani, A S AD - USGS-South Carolina Cooperative Fish and Wildlife Research Unit, Clemson University, Clemson 29634 Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 88 EP - 103 PB - University of Notre Dame VL - 152 IS - 1 SN - 0003-0031, 0003-0031 KW - Mammals KW - Birds KW - Red imported fire ant KW - Ants KW - Hymenoptera KW - Sustainability Science Abstracts; Entomology Abstracts; Ecology Abstracts KW - Geographical distribution KW - Invasiveness KW - Wildlife conservation KW - Formicidae KW - Predators KW - Herpetofauna KW - Foraging behavior KW - Biogeography KW - Control programs KW - Environmental impact KW - Mammalia KW - Aggressive behavior KW - Aves KW - Solenopsis invicta KW - Terrestrial ecosystems KW - Invasive species KW - M3 1140:Biodiversity KW - Z 05205:Populations & general ecology KW - D 04710:Control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17765331?accountid=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=Red+Imported+Fire+Ant+Impacts+on+Wildlife%3A+A+Decade+of+Research&rft.au=Allen%2C+C+R%3BEpperson%2C+D+M%3BGarmestani%2C+A+S&rft.aulast=Allen&rft.aufirst=C&rft.date=2004-07-01&rft.volume=152&rft.issue=1&rft.spage=88&rft.isbn=&rft.btitle=&rft.title=American+Midland+Naturalist&rft.issn=00030031&rft_id=info:doi/10.1043%2F0003-0031%282004%291522.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0003-0031&volume=152&page=88 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Formicidae; Solenopsis invicta; Aves; Mammalia; Invasiveness; Aggressive behavior; Biogeography; Control programs; Geographical distribution; Herpetofauna; Predators; Terrestrial ecosystems; Environmental impact; Wildlife conservation; Invasive species; Foraging behavior DO - http://dx.doi.org/10.1043/0003-0031(2004)152<0088:RIFAIO>2.0.CO;2 ER - TY - JOUR T1 - Prevalence of Neurotoxic Clostridium botulinum Type C in the Gastrointestinal Tracts of Tilapia (Oreochromis mossambicus) in the Salton Sea AN - 17620131; 6119796 AB - Tilapia (Oreochromis mossambicus) have been implicated as the source of type C toxin in avian botulism outbreaks in pelicans (Pelecanus erythrorhynchos, Pelecanus occidentalis californicus) at the Salton Sea in southern California (USA). We collected sick, dead, and healthy fish from various sites throughout the Sea during the summers of 1999 through 2001 and tested them for the presence of Clostridium botulinum type C cells by polymerase chain reaction targeting the C sub(1) neurotoxin gene. Four of 96 (4%), 57 of 664 (9%), and five of 355 (1%) tilapia tested were positive for C. botulinum type C toxin gene in 1999, 2000, and 2001, respectively. The total number of positive fish was significantly greater in 2000 than in 2001 (P<0.0001). No difference in numbers of positives was detected between sick and dead fish compared with live fish. In 2000, no significant relationships were revealed among the variables studied, such as location and date of collection. JF - Journal of Wildlife Diseases AU - Nol, P AU - Rocke, TE AU - Gross, K AU - Yuill, T M AD - USGS National Wildlife Health Center, Madison, Wisconsin 53711, USA, pauline.nol@aphis.usda.gov Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 414 EP - 419 PB - Allen Press, Inc., 810 East Tenth St. Lawrence KS 66044 USA, [mailto:webmaster@allenpress.com], [URL:http://www.allenpress.com] VL - 40 IS - 3 SN - 0090-3558, 0090-3558 KW - American white pelican KW - Brown Pelican KW - Mozambique mouth-breeder KW - Mozambique mouthbrooder KW - Mozambique tilapia KW - ASFA 1: Biological Sciences & Living Resources; Microbiology Abstracts B: Bacteriology KW - Freshwater KW - J 02862:Infection KW - Q1 01484:Species interactions: parasites and diseases UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17620131?accountid=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+Wildlife+Diseases&rft.atitle=Prevalence+of+Neurotoxic+Clostridium+botulinum+Type+C+in+the+Gastrointestinal+Tracts+of+Tilapia+%28Oreochromis+mossambicus%29+in+the+Salton+Sea&rft.au=Nol%2C+P%3BRocke%2C+TE%3BGross%2C+K%3BYuill%2C+T+M&rft.aulast=Nol&rft.aufirst=P&rft.date=2004-07-01&rft.volume=40&rft.issue=3&rft.spage=414&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 revised - 2005-12-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Freshwater ER - TY - JOUR T1 - Goals And Strategies For Estimating Trends In Landbird Abundance AN - 17590320; 6485733 AB - Reliable estimates of trends in population size are critical to effective management of landbirds. We propose a standard for considering that landbird populations are adequately monitored: 80% power to detect a 50% decline occurring within 20 years, using a 2-tailed test and a significance level of 0.10, and incorporating effects of potential bias. Our standard also requires that at least two-thirds of the target region be covered by the monitoring program. We recommend that the standard be achieved for species' entire ranges or for any area one-third the size of the temperate portions of Canada and the United States, whichever is smaller. We applied our approach to North American Breeding Bird Survey (BBS) data. At present, potential annual bias for the BBS is estimated at plus or minus 0.008. Further, the BBS achieves the monitoring standard for only about 42% of landbirds for which the BBS is considered the most effective monitoring approach. Achieving the proposed monitoring target for greater than or equal to 80% of these species would require increasing the number of BBS-or similar survey-routes by several-fold, a goal that probably is impractical. We suggest several methods for reducing potential bias and argue that if our methods are implemented, potential bias would fall to plus or minus 0.003. The required number of BBS or similar routes would then be 5,106, about 40% more than in the current BBS program. Most of the needed increases are in 15 states or provinces. Developing a comprehensive land-bird monitoring program will require increased support for coordination of the BBS (currently 2 people) and new programs for species that are poorly covered at present. Our results provide a quantitative goal for long-term land-bird monitoring and identify the sample sizes needed, within each state and province, to achieve the monitoring goal for most of the roughly 300 landbird species that are well suited to monitoring with the BBS and similar surveys. JF - Journal of Wildlife Management AU - Bart, J AU - Burnham, K P AU - Dunn, E H AU - Francis, C M AU - Ralph, C J AD - USGS Forest and Rangeland Ecosystem Science Center, Snake River Field Station, 970 Lusk Street, Boise, ID 83706, USA Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 611 EP - 626 PB - The Wildlife Society VL - 68 IS - 3 SN - 0022-541X, 0022-541X KW - Birds KW - Ecology Abstracts KW - Aves KW - Wildlife management KW - USA KW - Breeding KW - Canada KW - Abundance KW - D 04700:Management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17590320?accountid=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=Goals+And+Strategies+For+Estimating+Trends+In+Landbird+Abundance&rft.au=Bart%2C+J%3BBurnham%2C+K+P%3BDunn%2C+E+H%3BFrancis%2C+C+M%3BRalph%2C+C+J&rft.aulast=Bart&rft.aufirst=J&rft.date=2004-07-01&rft.volume=68&rft.issue=3&rft.spage=611&rft.isbn=&rft.btitle=&rft.title=Journal+of+Wildlife+Management&rft.issn=0022541X&rft_id=info:doi/10.2193%2F0022-541X%282004%290682.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0022-541X&volume=68&issue=3&page=611 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; USA; Canada; Breeding; Wildlife management; Abundance DO - http://dx.doi.org/10.2193/0022-541X(2004)068[0611:GASFET]2.0.CO;2 ER - TY - JOUR T1 - The Rise and Fall of Water Hyacinth in Lake Victoria and the Kagera River Basin, 1989-2001 AN - 17531355; 6193250 AB - Water hyacinth (Eichhornia crassipes (Mart.) Solms) is an invasive aquatic macrophyte associated with major negative economic and ecological impacts to the Lake Victoria region since the plant's establishment in Uganda in the 1980s. Reliable estimates of water hyacinth distribution and extent are required to gauge the severity of the problem through time, relate water hyacinth abundance to environmental factors, identify areas requiring management action, and assess the efficacy of management actions. To provide such estimates and demonstrate the utility of remote sensing for this application, we processed and analyzed remotely sensed imagery to determine the distribution and extent of water hyacinth. Maps were produced and coverage was quantified using a hybrid unsupervised image classification approach with manual editing for each of the riparian countries of Kenya, Tanzania, and Uganda, as well as for numerous gulfs and bays. A similar procedure was carried out for selected lakes in the Rwanda-Tanzania borderlands lakes region in the Kagera River basin. Results confirm the severity of the water hyacinth infestation, especially in the northern parts of the lake. A maximum lake-wide extent of at least 17,374 ha was attained in 1998. Following this, a combination of factors, including conditions associated with the 1997 to 1998 El Nino and biocontrol with water hyacinth weevils, appear to have contributed to a major decline in water hyacinth in the most affected parts of the lake. Some lakes in the Kagera basin, such as Lake Mihindi, Rwanda, were severely infested in the late 1990s, but the level of infestation in most of these decreased markedly by the early 2000s. JF - Journal of Aquatic Plant Management AU - Albright, T P AU - Moorhouse, T G AU - McNabb, T J AD - SAIC, USGS/EROS Data Center, and Department of Zoology, University of Wisconsin, Madison, WI 53706, USA, talbrigh@usgs.gov Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 73 EP - 84 PB - Aquatic Plant Management Society, Inc., PO Box 1477 Lehigh Acres FL 33970 USA VL - 42 IS - 2 SN - 0146-6623, 0146-6623 KW - Invasive species KW - ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Remote Sensing KW - Biological control KW - River Basins KW - Tanzania KW - Ecological distribution KW - Biocontrol KW - Remote sensing KW - Freshwater KW - Eichhornia crassipes KW - Maps KW - Population dynamics KW - Gulfs KW - Environmental factors KW - Vegetation cover KW - Lakes KW - Kenya KW - Aquatic Plants KW - Classification KW - Interspecific relationships KW - El Nino KW - Lake Basins KW - Mapping KW - Plant populations KW - Bays KW - El Nino phenomena KW - Quantitative distribution KW - Aquatic plants KW - Uganda KW - River basins KW - Water Hyacinth KW - Freshwater weeds KW - Rwanda KW - Africa, Victoria L. KW - Macrophytes KW - Infestation KW - Plant control KW - Environment management KW - Dispersion KW - SW 0850:Lakes KW - Q1 08485:Species interactions: pests and control KW - Q5 08522:Protective measures and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17531355?accountid=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+Aquatic+Plant+Management&rft.atitle=The+Rise+and+Fall+of+Water+Hyacinth+in+Lake+Victoria+and+the+Kagera+River+Basin%2C+1989-2001&rft.au=Albright%2C+T+P%3BMoorhouse%2C+T+G%3BMcNabb%2C+T+J&rft.aulast=Albright&rft.aufirst=T&rft.date=2004-07-01&rft.volume=42&rft.issue=2&rft.spage=73&rft.isbn=&rft.btitle=&rft.title=Journal+of+Aquatic+Plant+Management&rft.issn=01466623&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Biological control; Quantitative distribution; Ecological distribution; Aquatic plants; Remote sensing; River basins; Population dynamics; Environmental factors; Freshwater weeds; Vegetation cover; Lakes; Infestation; Plant control; Interspecific relationships; Mapping; Plant populations; Environment management; Dispersion; El Nino phenomena; Remote Sensing; River Basins; Biocontrol; Water Hyacinth; Maps; Gulfs; Macrophytes; Aquatic Plants; Classification; El Nino; Lake Basins; Bays; Eichhornia crassipes; Africa, Victoria L.; Tanzania; Kenya; Uganda; Rwanda; Freshwater ER - TY - JOUR T1 - Challenging the assumption of habitat limitation: an example from centrarchid fishes over an intermediate spatial scale AN - 17226052; 6905992 AB - Habitat rehabilitation efforts are predicated on the frequently untested assumption that habitat is limiting to populations. These efforts are typically costly and will be ineffective if habitat is not limiting. Therefore it is important to assess, rather than assume, habitat limitation wherever habitat rehabilitation projects are considered. Catch-count data from a standardized probability-based stratified-random monitoring programme were examined for indirect evidence of backwater habitat limitation by centrarchid fishes in the Upper Mississippi River System. The monitoring design enabled fitting statistical models of the association between mean catch at the spatial scale of tens of river kilometres and the percentage of contiguous aquatic area in backwater at least 1 m deep by maximizing a stratum-area weighted negative binomial log-likelihood function. Statistical models containing effects for backwater limitation failed to account for substantial variation in the data. However, 95% confidence intervals on the backwater parameter estimates excluded zero, indicating that population abundance may be limited by backwater prevalence where backwaters are extremely scarce. The combined results indicate, at most, a weak signal of backwater limitation where backwaters are extremely scarce in the lower reaches, but not elsewhere in the Upper Mississippi River System. This suggests that habitat restoration projects designed to increase the area of backwaters suitable for winter survival of centrarchids are unlikely to produce measurable benefits over intermediate spatial scales in much of the Upper Mississippi River System, and indicates the importance of correct identification of limiting processes. Published in 2004 by John Wiley & Sons, Ltd. JF - River Research and Applications AU - Gutreuter, Steve AD - US Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, la Crosse, WI 54603, USA, steve_gutreuter@usgs.gov Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 413 EP - 425 PB - John Wiley & Sons, Ltd., Baffins Lane Chichester W. Sussex PO19 1UD UK, [mailto:customer@wiley.co.uk] VL - 20 IS - 4 SN - 1535-1459, 1535-1459 KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources; Water Resources Abstracts; Aqualine Abstracts KW - centrarchid fishes KW - abundance KW - rivers KW - backwaters KW - habitat rehabilitation KW - model KW - negative binomial KW - Akaike Information KW - Backwater KW - River Systems KW - Ecological distribution KW - Abundance KW - Statistical analysis KW - Survival KW - Backwaters KW - USA, Mississippi R. KW - Freshwater KW - Freshwater fish KW - Models KW - Pisces KW - Habitats KW - Rivers KW - Data processing KW - Mathematical models KW - Rehabilitation KW - Statistical models KW - Habitat KW - North America, Mississippi R. KW - Aquatic Habitats KW - Habitat improvement KW - Statistical Models KW - Fish KW - Monitoring KW - Benefits KW - SW 0835:Streamflow and runoff KW - D 04040:Ecosystem and Ecology Studies KW - Q1 08604:Stock assessment and management KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17226052?accountid=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=River+Research+and+Applications&rft.atitle=Challenging+the+assumption+of+habitat+limitation%3A+an+example+from+centrarchid+fishes+over+an+intermediate+spatial+scale&rft.au=Gutreuter%2C+Steve&rft.aulast=Gutreuter&rft.aufirst=Steve&rft.date=2004-07-01&rft.volume=20&rft.issue=4&rft.spage=413&rft.isbn=&rft.btitle=&rft.title=River+Research+and+Applications&rft.issn=15351459&rft_id=info:doi/10.1002%2Frra.757 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Habitat improvement; Ecological distribution; Statistical models; Backwaters; Habitat; Freshwater fish; Rivers; Mathematical models; Data processing; Rehabilitation; Abundance; Statistical analysis; Survival; Models; Habitats; Backwater; Aquatic Habitats; River Systems; Statistical Models; Fish; Monitoring; Benefits; Pisces; North America, Mississippi R.; USA, Mississippi R.; Freshwater DO - http://dx.doi.org/10.1002/rra.757 ER - TY - JOUR T1 - Intra-Seasonal Mapping of CO sub(2) Flux in Rangelands of Northern Kazakhstan at One-Kilometer Resolution AN - 16182906; 6018777 AB - Algorithms that establish relationships between variables obtained through remote sensing and geographic information system (GIS) technologies are needed to allow the scaling up of site-specific CO sub(2) flux measurements to regional levels. We obtained Bowen ratio-energy balance (BREB) flux tower measurements during the growing seasons of 1998-2000 above a grassland steppe in Kazakhstan. These BREB data were analyzed using ecosystem light-curve equations to quantify 10-day CO sub(2) fluxes associated with gross primary production (GPP) and total respiration (R). Remotely sensed, temporally smoothed normalized difference vegetation index (NDVIsm) and environmental variables were used to develop multiple regression models for the mapping of 10-day CO sub(2) fluxes for the Kazakh steppe. Ten-day GPP was estimated (R super(2) = 0.72) by day of year (DOY) and NDVIsm, and 10-day R was estimated (R super(2) = 0.48) with the estimated GPP and estimated 10-day photosynthetically active radiation (PAR). Regression tree analysis estimated 10-day PAR from latitude, NDVIsm, DOY, and precipitation (R super(2) = 0.81). Fivefold cross-validation indicated that these algorithms were reasonably robust. GPP, R, and resulting net ecosystem exchange (NEE) were mapped for the Kazakh steppe grassland every 10 days and summed to produce regional growing season estimates of GPP, R, and NEE. Estimates of 10-day NEE agreed well with BREB observations in 2000, showing a slight underestimation in the late summer. Growing season (May to October) mean NEE for Kazakh steppe grasslands was 1.27 Mg C/ha in 2000. Winter flux data were collected during the winter of 2001-2002 and are being analyzed to close the annual carbon budget for the Kazakh steppe. JF - Environmental Management AU - Wylie, B K AU - Gilmanov, T G AU - Johnson, DA AU - Saliendra, N Z AU - Akshalov, K AU - Tieszen, L L AU - Reed, B C AU - Laca, E AD - SAIC, Science and Application, USGS EROS Data Center, Sioux Falls, South Dakota 57198, USA, wylie@usgs.gov Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - S482 EP - S491 PB - Springer-Verlag VL - 33 IS - S1 SN - 0364-152X, 0364-152X KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts; Ecology Abstracts KW - Ecosystems KW - Respiration KW - Remote sensing KW - Algorithms KW - Carbon dioxide flux KW - Primary production KW - Steppes KW - Measuring methods KW - Carbon dioxide measurements KW - Mapping KW - Regression models KW - Carbon cycle KW - Precipitation KW - Normalized Difference Vegetation Index (NDVI) KW - Rangelands KW - Grasslands KW - Kazakhstan KW - Geographic information systems KW - Carbon dioxide KW - Biosphere-atmosphere interaction KW - D 04700:Management KW - P 0000:AIR POLLUTION KW - M2 551.510.3/.4:Physical Properties/Composition (551.510.3/.4) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16182906?accountid=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+Management&rft.atitle=Intra-Seasonal+Mapping+of+CO+sub%282%29+Flux+in+Rangelands+of+Northern+Kazakhstan+at+One-Kilometer+Resolution&rft.au=Wylie%2C+B+K%3BGilmanov%2C+T+G%3BJohnson%2C+DA%3BSaliendra%2C+N+Z%3BAkshalov%2C+K%3BTieszen%2C+L+L%3BReed%2C+B+C%3BLaca%2C+E&rft.aulast=Wylie&rft.aufirst=B&rft.date=2004-07-01&rft.volume=33&rft.issue=S1&rft.spage=S482&rft.isbn=&rft.btitle=&rft.title=Environmental+Management&rft.issn=0364152X&rft_id=info:doi/10.1007%2Fs00267-003-9156-8 L2 - http://link.springer.de/link/service/journals/00267/bibs/40330S1/4033S482.htm LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Grasslands; Algorithms; Precipitation; Mapping; Geographic information systems; Carbon dioxide; Steppes; Ecosystems; Regression models; Carbon cycle; Remote sensing; Carbon dioxide flux; Carbon dioxide measurements; Normalized Difference Vegetation Index (NDVI); Biosphere-atmosphere interaction; Rangelands; Measuring methods; Respiration; Primary production; Kazakhstan DO - http://dx.doi.org/10.1007/s00267-003-9156-8 ER - TY - JOUR T1 - Contemporary Carbon Dynamics in Terrestrial Ecosystems in the Southeastern Plains of the United States AN - 16182081; 6018773 AB - Quantifying carbon dynamics over large areas is frequently hindered by the lack of consistent, high-quality, spatially explicit land use and land cover change databases and appropriate modeling techniques. In this paper, we present a generic approach to address some of these challenges. Land cover change information in the Southeastern Plains ecoregion was derived from Landsat data acquired in 1973, 1980, 1986, 1992, and 2000 within 11 randomly located 20-km x 20-km sample blocks. Carbon dynamics within each of the sample blocks was simulated using the General Ensemble Biogeochemical Modeling System (GEMS), capable of assimilating the variances and covariance of major input variables into simulations using an ensemble approach. Results indicate that urban and forest areas have been increasing, whereas agricultural land has been decreasing since 1973. Forest clear-cutting activity has intensified, more than doubling from 1973 to 2000. The Southeastern Plains has been acting as a carbon sink since 1973, with an average rate of 0.89 Mg C/ha/yr. Biomass, soil organic carbon (SOC), and harvested materials account for 56%, 34%, and 10% of the sink, respectively. However, the sink has declined continuously during the same period owing to forest aging in the northern part of the ecoregion and increased forest clear-cutting activities in the south. The relative contributions to the sink from SOC and harvested materials have increased, implying that these components deserve more study in the future. The methods developed here can be used to quantify the impacts of human management activities on the carbon cycle at landscape to global scales. JF - Environmental Management AU - Liu, S AU - Loveland, T R AU - Kurtz, R M AD - SAIC, EROS Data Center, Sioux Falls, South Dakota 57198, USA, sliu@usgs.gov Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - S442 EP - S456 PB - Springer-Verlag VL - 33 IS - S1 SN - 0364-152X, 0364-152X KW - Pollution Abstracts; Ecology Abstracts KW - Historical account KW - Terrestrial environments KW - Aging KW - Carbon cycle KW - Remote sensing KW - Simulation KW - Forests KW - USA, Southeast KW - Biomass KW - Land use KW - Soil KW - Carbon sequestration KW - Agricultural land KW - Landsat KW - Carbon KW - Terrestrial ecosystems KW - carbon sinks KW - Environment management KW - D 04700:Management KW - P 9000:ENVIRONMENTAL ACTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16182081?accountid=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+Science+Reviews&rft.atitle=Geochemical+cycles+in+sediments+deposited+on+the+slopes+of+the+Guaymas+and+Carmen+Basins+of+the+Gulf+of+California+over+the+last+180+years&rft.au=Dean%2C+W%3BPride%2C+C%3BThunell%2C+R&rft.aulast=Dean&rft.aufirst=W&rft.date=2004-09-01&rft.volume=23&rft.issue=16-17&rft.spage=1817&rft.isbn=&rft.btitle=&rft.title=Quaternary+Science+Reviews&rft.issn=02773791&rft_id=info:doi/10.1016%2Fj.quascirev.2004.03.010 L2 - http://link.springer.de/link/service/journals/00267/bibs/40330S1/4033S442.htm LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Soil; Landsat; Agricultural land; Terrestrial ecosystems; Carbon; carbon sinks; Aging; Forests; Historical account; Carbon sequestration; Terrestrial environments; Remote sensing; Carbon cycle; Simulation; Biomass; Environment management; Land use; USA, Southeast DO - http://dx.doi.org/10.1007/s00267-003-9152-z ER - TY - JOUR T1 - Overview and comparison of lipid-containing semipermeable membrane devices and oysters (Crassostrea gigas) for assessing organic chemical exposure AN - 16177463; 6007847 AB - We performed 20-d, flow-through exposures of lipid-containing semipermeable membrane devices (SPMDs) and Pacific oysters (Crassostrea gigas) to three concentrations (nominally 10, 100, and 250 ng/L) of a diverse mixture of polycyclic aromatic hydrocarbons (PAHs). Exposure water was seawater free of particulates larger than 0.1 mu m. The results of these controlled laboratory studies demonstrated that SPMDs and oysters concentrate the same chemicals but that the relative amounts accumulated are different. For oysters, the 20-d mean (across treatments) concentration factors (CFs) of test compounds with log K sub(ow) less than or equal to 4.8 were much lower (4.0- to 20-fold lower) than those of the same compounds in SPMDs. In contrast, the 20-d CFs of PAHs with log K sub(ow) greater than or equal to 5.6 in oysters from the low-level treatment were higher than the corresponding CFs for SPMDs. The CFs of these compounds in oysters from the low-level treatment ranged from approximately 3.0- to 13-fold higher than those in oysters from the high-level treatment. This physiologically mediated difference in oyster CFs appears to be linked to active feeding in the low-level treatment and to apparent toxicity-induced cessation of feeding (i.e., valve closure) in the high-level treatment. Because CFs for these compounds in oysters were not independent of exposure concentrations, it follows that tissue levels were not proportional to exposure concentration. However, both sampling approaches have advantages and disadvantages, and the appropriateness of their use depends on the goals of a given study. JF - Environmental Toxicology and Chemistry AU - Huckins, J N AU - Prest, H F AU - Petty, J D AU - Lebo, JA AU - Hodgins, M M AU - Clark, R C AU - Alvarez, DA AU - Gala, W R AU - Steen, A AU - Gale, R AU - Ingersoll, C G AD - U.S. Geological Survey, Columbia Environmental Research Center, 4200 New Haven Road, Columbia, Missouri 65201, USA, jhuckins@usgs.gov Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 1617 EP - 1628 VL - 23 IS - 7 SN - 0730-7268, 0730-7268 KW - Pacific giant oyster KW - Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; ASFA 1: Biological Sciences & Living Resources; Toxicology Abstracts; Pollution Abstracts KW - Semipermeable Membranes KW - Seawater KW - Lipids KW - Particulates KW - Toxicity tests KW - Feeding behaviour KW - Exposure KW - I, Pacific KW - Aromatic hydrocarbons KW - Sampling KW - Chemical pollution KW - Pollution indicators KW - Marine crustaceans KW - Toxicology KW - Laboratory Equipment KW - Polycyclic aromatic hydrocarbons KW - Membranes KW - Laboratories KW - Geochemistry KW - Valves KW - Sea water KW - Crassostrea gigas KW - Oysters KW - Reviews KW - Toxicity testing KW - X 24222:Analytical procedures KW - Q5 08504:Effects on organisms KW - SW 3030:Effects of pollution KW - AQ 00008:Effects of Pollution KW - Q1 08425:Nutrition and feeding habits KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16177463?accountid=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+and+Chemistry&rft.atitle=Overview+and+comparison+of+lipid-containing+semipermeable+membrane+devices+and+oysters+%28Crassostrea+gigas%29+for+assessing+organic+chemical+exposure&rft.au=Huckins%2C+J+N%3BPrest%2C+H+F%3BPetty%2C+J+D%3BLebo%2C+JA%3BHodgins%2C+M+M%3BClark%2C+R+C%3BAlvarez%2C+DA%3BGala%2C+W+R%3BSteen%2C+A%3BGale%2C+R%3BIngersoll%2C+C+G&rft.aulast=Huckins&rft.aufirst=J&rft.date=2004-07-01&rft.volume=23&rft.issue=7&rft.spage=1617&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 - 2004-10-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Feeding behaviour; Geochemistry; Aromatic hydrocarbons; Particulates; Marine crustaceans; Pollution indicators; Toxicity tests; Toxicology; Sea water; Polycyclic aromatic hydrocarbons; Reviews; Lipids; Chemical pollution; Sampling; Valves; Membranes; Seawater; Toxicity testing; Semipermeable Membranes; Oysters; Laboratories; Exposure; Laboratory Equipment; Crassostrea gigas; I, Pacific ER - TY - JOUR T1 - Mineralogical and geochemical controls on the release of trace elements from slag produced by base- and precious-metal smelting at abandoned mine sites AN - 16174071; 5891447 AB - Slag collected from smelter sites associated with historic base-metal mines contains elevated concentrations of trace elements such as Cu, Zn and Pb. Weathering of slag piles, many of which were deposited along stream banks, potentially may release these trace elements into the environment. Slags were sampled from the Ely and Elizabeth mines in the Vermont copper belt, from the copper Basin mining district at Ducktown, Tennessee and from the Clayton silver mine in the Bayhorse mining district, Idaho, in the USA. Primary phases in the slags include: olivine-group minerals, glass, spinels, sulfide minerals and native metals for Vermont samples; glass, sulfide minerals and native metals for the Ducktown sample; and olivine-group minerals, clinopyroxenes, spinels, sulfide minerals, native metals and other unidentified metallic compounds for Clayton slag. Olivine-group minerals and pyroxenes are dominantly fayalitic and hedenbergitic in composition, respectively and contain up to 1.25 wt.% ZnO. Spinel minerals range between magnetite and hercynite in composition and contain Zn (up to 2.07 wt.% ZnO), Ti (up to 4.25 wt.% TiO sub(2)) and Cr (up to 1.39 wt.% Cr sub(2)O sub(3)). Cobalt, Ni, Cu, As, Ag, Sb and Pb occur in the glass phase, sulfides, metallic phases and unidentified metallic compounds. Bulk slag trace- element chemistry shows that the metals of the Vermont and Tennessee slags are dominated by Cu (1900-13, 500 mg/kg) and Zn (2310-10, 200 mg/kg), whereas the Clayton slag is dominated by Pb (63, 000 mg/kg), Zn (19, 700 mg/kg), Cu (7550 mg/kg), As (555 mg/kg), Sn (363 mg/kg) and Ag (200 mg/kg). Laboratory-based leach tests indicate metals can be released under simulated natural conditions. Leachates from most slags were found to contain elevated concentrations of Cu and Zn (up to 1800 and 470 mu g/l, respectively), well in excess of the acute toxicity guidelines for aquatic life. For the Idaho slag, the concentration of Pb in the leachate (11, 000 mu g/l) is also in excess of the acute toxicity guideline. Geochemical modeling of the leachate chemistry suggests that leachates from the Vermont, Tennessee and Clayton slags are saturated with amorphous silica and Al hydroxide. Therefore, the dissolution of silicate and oxide phases, the oxidation of sulfide phases, as well as the precipitation of secondary phases may control the composition of leachate from slags. The presence of secondary minerals on slag deposits in the field is evidence that these materials are reactive. The petrographic data and results of leaching tests from this study indicate slag may be a source of potentially toxic metals at abandoned mine sites. JF - Applied Geochemistry AU - Piatak, N M AU - Seal, RR II AU - Hammarstrom, J M AD - US Geological Survey, 954 National Center, Reston, VA 20192, USA, npiatak@usgs.gov Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 1039 EP - 1064 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl] VL - 19 IS - 7 SN - 0883-2927, 0883-2927 KW - Slag KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Magnetite KW - slag KW - Heavy metals KW - Pollution dispersion KW - Copper KW - Freshwater KW - Mine tailings KW - Lead KW - Silicates KW - Trace elements KW - Mining wastes KW - Industrial wastes KW - Cobalt KW - Zinc KW - Weathering KW - Leaching KW - Pyroxenes KW - Smelting KW - Toxic materials KW - Geochemistry KW - Toxicity KW - Glass KW - USA, Tennessee KW - USA, Idaho KW - Chemical reactions KW - Mining KW - Hydroxides KW - USA, Vermont KW - Minerals KW - Leachates KW - Runoff KW - Q5 08503:Characteristics, behavior and fate KW - Q2 09184:Composition of water KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16174071?accountid=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=Mineralogical+and+geochemical+controls+on+the+release+of+trace+elements+from+slag+produced+by+base-+and+precious-metal+smelting+at+abandoned+mine+sites&rft.au=Piatak%2C+N+M%3BSeal%2C+RR+II%3BHammarstrom%2C+J+M&rft.aulast=Piatak&rft.aufirst=N&rft.date=2004-07-01&rft.volume=19&rft.issue=7&rft.spage=1039&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/10.1016%2Fj.apgeochem.2004.01.005 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-09-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Magnetite; Leaching; Heavy metals; Pyroxenes; Pollution dispersion; Geochemistry; Copper; Glass; Toxicity; Mine tailings; Lead; Trace elements; Silicates; Industrial wastes; Chemical reactions; Cobalt; Zinc; Weathering; Mining; Hydroxides; Runoff; slag; Mining wastes; Toxic materials; Smelting; Leachates; Minerals; USA, Tennessee; USA, Idaho; USA, Vermont; Freshwater DO - http://dx.doi.org/10.1016/j.apgeochem.2004.01.005 ER - TY - JOUR T1 - Use of spatial statistics and isotopic tracers to measure the influence of arsenical pesticide use on stream sediment chemistry in New England, USA AN - 16171425; 5891452 AB - Arsenical pesticides and herbicides, principally Pb arsenate, Ca arsenate, and Na arsenate with lesser use of other metal-As pesticides, were widely applied on apple, blueberry, and potato crops in New England during the first half of the twentieth century. Agricultural census data for this time period is used to define an agricultural index that identifies areas that are inferred to have used arsenical pesticides extensively. Factor analysis on metal concentrations in 1597 stream sediment samples collected throughout New England, grouped by agricultural-index categories, indicate a positive association of areas with stream sediment sample populations that contain higher As and Pb concentrations than samples from the region as a whole with sample site settings having high agricultural-index values. Population statistics for As and Pb concentrations and factor scores for an As-Pb factor all increase systematically and significantly with increasing agricultural-index intensity in the region, as tested by Kruskal-Wallis analysis. Lead isotope compositions for 16 stream sediments from a range of agricultural-index settings generally overlap the observed variation in rock sulfides and their weathering products; however, sediments collected from high agricultural-index settings have slightly more radiogenic Pb compositions, consistent with an industrial Pb contribution to these samples. Although weathering products from rocks are likely to be the dominant source of As and metals to most of the stream sediment samples collected in the region, the widespread use of arsenical pesticides and herbicides in New England during the early 1900-1960s appears to be a significant anthropogenic source of As and metals to many sediments in agricultural areas in the region and has raised background levels of As in some regions. Elevated concentrations of As in stream sediments are of concern for two reasons. Stream sediments with elevated As concentrations delineate areas with elevated background concentrations of As from both natural rock and anthropogenic sources that may contribute As to groundwater systems used for drinking water supplies. Conversion of agricultural land contaminated with arsenical pesticide residues to residential development may increase the likelihood that humans will be exposed to As. In addition, many stream sediment sites have As concentrations that exceed sediment quality guidelines established for freshwater ecosystems. Thirteen percent of the New England sediment sample sites exceed 9.79 mg/kg As, the threshold effects concentration (TEC), below which harmful effects are unlikely to be observed. Arsenic concentrations exceed 33 mg/kg, the probable effects concentration (PEC), above which harmful effects on sediment-dwelling organisms are expected to occur frequently, at 1.25% of the sediment sample sites. The sample sites that exceed the PEC value occur predominately in agricultural areas that used arsenical pesticides. JF - Applied Geochemistry AU - Robinson, GR Jr AU - Ayuso, R A AD - US Geological Survey, 954 National Center, Reston, VA 20192, USA, grobinso@usgs.gov Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 1097 EP - 1110 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl] VL - 19 IS - 7 SN - 0883-2927, 0883-2927 KW - ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Aqualine Abstracts; Pollution Abstracts KW - Water Pollution KW - Isotopes KW - Heavy metals KW - Lead KW - Agricultural Chemicals KW - Sediment Contamination KW - Agricultural runoff KW - Testing Procedures KW - Sediment chemistry KW - Lead isotopes KW - Agricultural pollution KW - Anthropogenic factors KW - Streams KW - Tracers KW - USA, New England KW - Weathering KW - Arsenicals KW - Sediment pollution KW - Arsenic KW - Baseline Studies KW - Industrial products KW - Pesticide Residues KW - Herbicides KW - Arsenates KW - Agrochemicals KW - Water supply KW - Pesticides KW - Isotopic Tracers 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/16171425?accountid=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+spatial+statistics+and+isotopic+tracers+to+measure+the+influence+of+arsenical+pesticide+use+on+stream+sediment+chemistry+in+New+England%2C+USA&rft.au=Robinson%2C+GR+Jr%3BAyuso%2C+R+A&rft.aulast=Robinson&rft.aufirst=GR&rft.date=2004-07-01&rft.volume=19&rft.issue=7&rft.spage=1097&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/10.1016%2Fj.apgeochem.2004.01.009 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-02-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Sediment chemistry; Arsenic; Heavy metals; Agricultural pollution; Anthropogenic factors; Industrial products; Herbicides; Arsenates; Water supply; Tracers; Pesticides; Weathering; Lead isotopes; Agricultural runoff; Isotopes; Streams; Agrochemicals; Testing Procedures; Water Pollution; Baseline Studies; Pesticide Residues; Lead; Agricultural Chemicals; Sediment Contamination; Isotopic Tracers; Arsenicals; USA, New England DO - http://dx.doi.org/10.1016/j.apgeochem.2004.01.009 ER - TY - JOUR T1 - Occurrence of hexavalent chromium in ground water in the western Mojave Desert, California AN - 16169423; 5891448 AB - About 200 samples from selected public supply, domestic, and observation wells completed in alluvial aquifers underlying the western Mojave Desert were analyzed for total dissolved Cr and Cr(VI). Because Cr(VI) is difficult to preserve, samples were analyzed by 3 methods. Chromium(VI) was determined in the field using both a direct colorimetric method and EPA method 218.6, and samples were speciated in the field for later analysis in the laboratory using a cation- exchange method developed for the study described in this paper. Comparison of the direct colorimetric method and EPA method 218.6 with the new cation-exchange method yielded r super(2) values of 0.9991 and 0.9992, respectively. Total dissolved Cr concentrations ranged from less than the 0.1 mu g/l detection limit to 60 mu g/l, and almost all the Cr present was Cr(VI). Near recharge areas along the mountain front pH values were near neutral, dissolved O sub(2) concentrations were near saturation, and Cr(VI) concentrations were less than the 0.1 mu g/l detection limit. Chromium(VI) concentrations and pH values increased downgradient as long as dissolved O sub(2) was present. However, low Cr(VI) concentrations were associated with low dissolved O sub(2) concentrations near ground-water discharge areas along dry lakes. Chromium(VI) concentrations as high as 60 mu g/l occurred in ground water from the Sheep Creek fan alluvial deposits weathered from mafic rock derived from the San Gabriel Mountains, and Cr(VI) concentrations as high as about 36 mu g/l were present in ground water from alluvial deposits weathered from less mafic granitic, metamorphic, and volcanic rocks. Chromium(III) was the predominant form of Cr only in areas where dissolved O sub(2) concentrations were less than 1 mg/l and was detected at a median concentration of 0.1 mu g/l, owing to its low solubility in water of near-neutral pH. Depending on local hydrogeologic conditions and the distribution of dissolved O sub(2), Cr(VI) concentrations may vary considerably with depth. Samples collected under pumping conditions from different depths within wells show that Cr(VI) concentrations can range from less than the 0.1 mu g/l detection limit to 36 mu g/l in a single well and that dissolved O sub(2) concentrations likely control the concentration and redox speciation of Cr in ground water. JF - Applied Geochemistry AU - Ball, J W AU - Izbicki, JA AD - US Geological Survey, 3215 Marine Street, Boulder, CO 80303, USA, jwball@usgs.gov Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 1123 EP - 1135 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl] VL - 19 IS - 7 SN - 0883-2927, 0883-2927 KW - hexavalent chromium KW - Water Resources Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Aquifers KW - Alluvial Deposits KW - Groundwater Discharge KW - Arid environments KW - Groundwater Pollution KW - Alluvial deposits KW - Observation Wells KW - Alluvial fans KW - pH KW - Redox reactions KW - Solubility KW - Chromium KW - Geochemistry KW - River discharge KW - Hydrogen Ion Concentration KW - Saturation KW - USA, California, Mojave Desert KW - Detection Limits KW - Deserts KW - Geohydrology KW - Groundwater pollution KW - Alluvial Aquifers 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/16169423?accountid=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=Occurrence+of+hexavalent+chromium+in+ground+water+in+the+western+Mojave+Desert%2C+California&rft.au=Ball%2C+J+W%3BIzbicki%2C+JA&rft.aulast=Ball&rft.aufirst=J&rft.date=2004-07-01&rft.volume=19&rft.issue=7&rft.spage=1123&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/10.1016%2Fj.apgeochem.2004.01.011 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-02-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Redox reactions; Chromium; Deserts; Geochemistry; River discharge; Groundwater pollution; Alluvial fans; Alluvial deposits; pH; Aquifers; Arid environments; Observation Wells; Alluvial Deposits; Solubility; Groundwater Discharge; Detection Limits; Geohydrology; Hydrogen Ion Concentration; Groundwater Pollution; Alluvial Aquifers; Saturation; USA, California, Mojave Desert DO - http://dx.doi.org/10.1016/j.apgeochem.2004.01.011 ER - TY - JOUR T1 - Atmospherically transported elements and deposition in the Southeastern United States: local or transoceanic? AN - 16168733; 5891441 AB - Saharan dust is persistently transported and deposited in ecosystems of the western Atlantic Ocean. This dust is an aggregate of clay and quartz particles cemented with Fe oxides. Samples collected and analyzed from Mali (central Africa), the Azores, the Caribbean and the Eastern United States document the levels of minor and trace metals in the dust. Metal loadings, particularly the toxic elements--Hg and As, are significantly higher than average crustal rocks. Over the past decade, the focus has been to understand the cycling of Hg in south Florida, but As has received very little attention. Arsenic in the sediment deposited in the past decade in south Florida averages 14 mg/kg and appears to be correlated with Al, a proxy for dust. The largest available aerosol data set containing As is the IMPROVE (Interagency Monitoring of Protected Visual Environments) data set. The average concentrations in aerosols collected during this program range from 17 mg/kg in the Virgin Islands to 79 mg/kg at Chassahowitzka, Florida. At Chassahowitzka, most of the As appears to be associated with organic C. If it is assumed that the concentrations in Mali dust and in the aerosols in the Virgin Islands are indicative of soil dust, then the higher values at Chassahowitzka may be derived from local or regional sources. A simple calculation indicates that African dust supplies about 25% of the As deposited from aerosols in the southeastern United States. Comparison of the average yearly As concentrations measured in the Virgin Islands and Everglades shows a negative relationship with the North Atlantic Oscillation (NAO). This relationship demonstrates the influence of climate on the transport and deposition of aerosols to the southeastern United States. JF - Applied Geochemistry AU - Holmes, C W AU - Miller, R AD - US Geological Survey, St. Petersburg, Fl 33701, USA, cholmes@usgs.gov Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 1189 EP - 1200 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl] VL - 19 IS - 7 SN - 0883-2927, 0883-2927 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Mali KW - Iron oxides KW - Oscillations KW - Winds KW - Heavy metals KW - USA, Southeast KW - Atmosphere KW - Dust KW - Clays KW - USA, Florida, Chassahowitzka KW - Lesser Antilles, US Virgin Is. KW - Trans-boundary pollution KW - Quartz KW - Transport processes KW - Atmospheric particulates KW - Aerosols KW - Arsenic KW - USA, Florida, Everglades KW - Climate KW - ANE, Atlantic, Azores KW - Atmospheric forcing KW - Africa, Sahara Desert KW - Mercury KW - Eolian transport KW - AN, North Atlantic, North Atlantic Oscillation KW - Trace metals KW - Eolian dust KW - Q5 08503:Characteristics, behavior and fate KW - Q2 09264:Sediments and sedimentation KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16168733?accountid=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=Atmospherically+transported+elements+and+deposition+in+the+Southeastern+United+States%3A+local+or+transoceanic%3F&rft.au=Holmes%2C+C+W%3BMiller%2C+R&rft.aulast=Holmes&rft.aufirst=C&rft.date=2004-07-01&rft.volume=19&rft.issue=7&rft.spage=1189&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/10.1016%2Fj.apgeochem.2004.01.015 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-09-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Atmospheric particulates; Arsenic; Aerosols; Iron oxides; Winds; Oscillations; Heavy metals; Clays; Quartz; Atmospheric forcing; Mercury; Transport processes; Eolian transport; Eolian dust; Trace metals; Trans-boundary pollution; Climate; Atmosphere; Dust; USA, Florida, Chassahowitzka; USA, Florida, Everglades; Mali; ANE, Atlantic, Azores; Lesser Antilles, US Virgin Is.; Africa, Sahara Desert; USA, Southeast; AN, North Atlantic, North Atlantic Oscillation DO - http://dx.doi.org/10.1016/j.apgeochem.2004.01.015 ER - TY - JOUR T1 - Review of selenium toxicity in the aquatic food chain. AN - 71924714; 15142762 AB - In many environmental contaminant situations selenium has become the primary element of concern because of its bioaccumulative nature in food webs. Initial concerns about selenium were related to fish kills at Belews Lake, NC, Martin Lake, TX, and Kesterson Reservoir, CA, and to bird deformities at Kesterson Reservoir. Additional concerns were identified under the National Irrigation Water Quality Program at Salton Sea, CA, Kendrick, WY, Stewart Lake, UT, and Grand Valley and Uncompahgre Valley, CO. Recent studies have raised concerns about selenium impacts on aquatic resources in Southeastern Idaho and British Columbia. The growing discomfort among the scientific community with a waterborne criterion has lead the US Environment Protection Agency to consider a tissue-based criterion for selenium. Some aquatic ecosystems have been slow to recover from selenium contamination episodes. In recent years, non-governmental researchers have been proposing relatively high selenium thresholds in diet and tissue relative to those proposed by governmental researchers. This difference in opinions is due in part to the selection of datasets and caveats in selecting scientific literature. In spite of the growing selenium literature, there are needs for additional research on neglected organisms. This review also discusses the interaction of selenium with other elements, inconsistent effects of selenium on survival and growth of fish, and differences in depuration rates and sensitivity among species. Copryright 2004 Elsevier B.V. JF - The Science of the total environment AU - Hamilton, Steven J AD - US Geological Survey, Columbia Environmental Research Center, 31247 436th Avenue, Biological Resources Division, Yankton, SD 57078-6364, USA. steve_hamilton@usgs.gov Y1 - 2004/06/29/ PY - 2004 DA - 2004 Jun 29 SP - 1 EP - 31 VL - 326 IS - 1-3 SN - 0048-9697, 0048-9697 KW - Water Pollutants KW - 0 KW - Selenium KW - H6241UJ22B KW - Index Medicus KW - Environment KW - Ecosystem KW - Animals KW - Reference Values KW - Drug Interactions KW - Reproducibility of Results KW - Food Contamination KW - Invertebrates KW - Diet KW - Birds KW - Risk Assessment KW - Water Pollutants -- toxicity KW - Fishes -- growth & development KW - Selenium -- toxicity KW - Food Chain UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71924714?accountid=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=Review+of+selenium+toxicity+in+the+aquatic+food+chain.&rft.au=Hamilton%2C+Steven+J&rft.aulast=Hamilton&rft.aufirst=Steven&rft.date=2004-06-29&rft.volume=326&rft.issue=1-3&rft.spage=1&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 - 2004-06-29 N1 - Date created - 2004-05-14 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Building for Earthquakes AN - 17994946; 5931708 AB - Most earthquake losses result from damage to structures, but much can be done to mitigate urban earthquake risk. Because basic data and analysis are lacking for how buildings and other structures perform under extreme loads, this Policy Forum describes two U.S. government programs for expanding placement of recording instruments and sensors in seismic regions and for developing tools for modeling and simulation to predict building performance during earthquakes. These combined efforts could lead to significant progress toward building resiliency in the urban environment. JF - Science (Washington) AU - Leith, William AD - U.S. Geological Survey, Reston, VA 20192, wleith@usgs.gov Y1 - 2004/06/11/ PY - 2004 DA - 2004 Jun 11 SP - 1604 PB - American Association for the Advancement of Science, 1200 New York Avenue, NW Washington DC 20005 USA, [mailto:membership@aaas.org] VL - 304 IS - 5677 SN - 0036-8075, 0036-8075 KW - Building performance KW - Risk Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Earthquakes KW - Damage KW - Earthquake loading KW - Ground motion KW - natural disasters KW - Sensors KW - Government programs KW - Construction KW - Geological hazards KW - damage KW - Structural engineering KW - Buildings KW - Civil engineering KW - Research programmes KW - USA KW - Seismic activity KW - Research programs KW - Urban areas KW - Q2 09270:Seismology KW - R2 23030:Natural hazards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17994946?accountid=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=Building+for+Earthquakes&rft.au=Leith%2C+William&rft.aulast=Leith&rft.aufirst=William&rft.date=2004-06-11&rft.volume=304&rft.issue=5677&rft.spage=1604&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Research programmes; Earthquakes; Damage; Ground motion; Earthquake loading; Construction; Geological hazards; Structural engineering; Seismic activity; Civil engineering; natural disasters; Sensors; Government programs; damage; Buildings; Research programs; Urban areas; USA ER - TY - JOUR T1 - Tropical Archaea: diversity associated with the surface microlayer of corals AN - 18065497; 6008435 AB - Recent 16S rDNA studies have focused on detecting uncultivated bacteria associated with Caribbean reef corals in an effort to address the ecological roles of coral-associated microbes. Reports of Archaea associated with fishes and marine invertebrates raised the question of whether Archaea might also be part of the coral-associated microbial community. DNA analysis of mucus from 3 reef-building species of Caribbean corals, Montastraea annularis complex, Diploria strigosa and D. labyrinthiformis in the US Virgin Islands yielded 34 groups of archaeal 16S ribotypes (defined at the level of 97% similarity). The majority (75%) was most closely matched by BLAST searches to sequences derived from marine water column samples, whereas the remaining ribotypes were most similar to sequences isolated from anoxic environments (15%) and hydrothermal vents (9%). Unlike previous 16S studies of coral-associated Bacteria, the results do not suggest specific associations between particular archaeal sequences and individual coral species. Marine Archaea (Groups I, II and III) in addition to Thermoplasma-like, methanogen, and marine benthic crenarchaeote phylotypes, were detected in the mucus of tropical corals. The finding of sequences from coral-associated Archaea that are closely related to strict and facultative anaerobes, as well as to uncultivated Archaea from other types of anoxic environments, suggests that anaerobic micro-niches may exist in coral mucus layers. Archaea, with their unique biogeochemical capabilities, broaden the scope of possible interactions between corals and their associated microbial communities. JF - Marine Ecology Progress Series AU - Kellogg, CA AD - US Geological Survey, 600 4th Street South, St Petersburg, FL 33701, USA, ckellogg@usgs.gov Y1 - 2004/06/08/ PY - 2004 DA - 2004 Jun 08 SP - 81 EP - 88 VL - 273 SN - 0171-8630, 0171-8630 KW - Microbiology Abstracts B: Bacteriology; Ecology Abstracts KW - Bacteria KW - Archaea KW - Anoxia KW - Species diversity KW - US Virgin Is. KW - Habitat utilization KW - Corals KW - J 02905:Water KW - D 04620:Microorganisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18065497?accountid=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=Marine+Ecology+Progress+Series&rft.atitle=Tropical+Archaea%3A+diversity+associated+with+the+surface+microlayer+of+corals&rft.au=Kellogg%2C+CA&rft.aulast=Kellogg&rft.aufirst=CA&rft.date=2004-06-08&rft.volume=273&rft.issue=&rft.spage=81&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 - Archaea; US Virgin Is.; Corals; Species diversity; Anoxia; Habitat utilization; Bacteria ER - TY - JOUR T1 - Pesticides in surface water runoff in south-eastern New York State, USA: seasonal and stormflow effects on concentrations. AN - 72027539; 15198325 AB - Samples from two streams (Kisco River and the Middle Branch of the Croton River) in the Croton Reservoir system in south-eastern New York State, USA were sampled from May 2000 through to February 2001 in order to document the effect of land use, streamflow and seasonal patterns of application on pesticide concentrations in runoff from developed watersheds. Many of the pesticides detected most commonly in this study are generally used in developed areas, and particularly on turfgrass. Pesticide concentrations were generally higher, and the numbers of compounds were generally larger, in samples from the Kisco River than in samples from the Middle Branch, probably because the Kisco River drainage has a greater population density and is more extensively developed. Four pesticides (2,4-D, 2,4-D-methyl, dicamba and metalaxyl) were detected in at least one sample from the Kisco River at a concentration >1 microg litre(-1), and no pesticides were detected at concentrations >0.4 microg litre(-1) in Middle Branch samples. No human-health-based water-quality standards were exceeded by samples from either site in this study, but samples from the Kisco River contained four insecticides (carbaryl, chlorpyrifos, diazinon and malathion) and one herbicide (2,4-D) in concentrations that exceeded water quality criteria for the protection of aquatic life. The highest concentrations of most compounds occurred during stormflows in both streams in June, September and December, 2000. The lowest concentrations of most compounds at both sites occurred during baseflows from October 2000 through February 2001, even though the concentrations of many compounds increased substantially at the Kisco River site during stormflows in November and December. Detailed data on the variability of pesticide concentrations during stormflows indicate that there may be two sources of pesticides in the Kisco River watershed: (1) elevated concentrations of pesticides during peak flows that occur early in stormflows likely reflect runoff from paved areas, and (2) elevated concentrations during peak flows that occur later in stormflows from areas with lesser amounts of pavement. Data from the Kisco River indicate that the relation between storm discharge and pesticide concentrations varies among compounds, in part because of variation in seasonal application patterns. These variations in the timing of application result in not all stormflows producing increased concentrations of pesticides. Overall, these results indicate the importance of stormflow sampling throughout the year in assessing pesticide fate and transport in urbanized, developed areas. JF - Pest management science AU - Phillips, Patrick J AU - Bode, Robert W AD - US Geological Survey, 425 Jordan Road, Troy, NY 12180, USA. pjphilli@usgs.gov Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 531 EP - 543 VL - 60 IS - 6 SN - 1526-498X, 1526-498X KW - Herbicides KW - 0 KW - Insecticides KW - Pesticides KW - Water Pollutants, Chemical KW - Index Medicus KW - Agriculture KW - New York KW - Herbicides -- analysis KW - Seasons KW - Rain KW - Water Pollution, Chemical KW - Insecticides -- analysis KW - Pesticides -- analysis KW - Fresh Water -- chemistry KW - Water Pollutants, Chemical -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72027539?accountid=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=Pest+management+science&rft.atitle=Pesticides+in+surface+water+runoff+in+south-eastern+New+York+State%2C+USA%3A+seasonal+and+stormflow+effects+on+concentrations.&rft.au=Phillips%2C+Patrick+J%3BBode%2C+Robert+W&rft.aulast=Phillips&rft.aufirst=Patrick&rft.date=2004-06-01&rft.volume=60&rft.issue=6&rft.spage=531&rft.isbn=&rft.btitle=&rft.title=Pest+management+science&rft.issn=1526498X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-09-30 N1 - Date created - 2004-06-16 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Contaminant trends in reservoir sediment cores as records of influent stream quality. AN - 66657376; 15224725 AB - When reconstructing water-quality histories from lake and reservoir cores, it is sometimes assumed that the chemical signatures in the cores reflect historical water quality in the influent streams. To investigate this assumption, concentrations of metals, PAHs, and organochlorine compounds in sediment cores were compared to those associated with an influent-stream suspended sediment for three reservoirs in Fort Worth, TX, and two reservoirs in Boston, MA, U.S.A., and interpreted in light of land-use and regulation histories. In evaluating relations between suspended sediments and cores, three levels of preservation were indicated: (1) influent concentrations and historical trends are preserved in cores (metals at all sites; some organic contaminants at some sites); (2) some loss occurs during transport and initial deposition but relative historical trends are preserved in cores (some organic contaminants at some sites); and (3) neither stream concentrations nor relative historical trends are preserved (dieldrin and p,p'-DDT). The degree of preservation of influent concentration histories varied between lakes, particularly for PAHs. The results support the use of sediment cores to infer streamwater-quality histories for many contaminants but indicate that reservoir-bottom sediment samples might underestimate concentrations of organic contaminants in some streams. JF - Environmental science & technology AU - Van Metre, Peter C AU - Mahler, Barbara J AD - US Geological Survey, 8027 Exchange Drive, Austin, Texas 78754-4733, USA. pcvanmet@usgs.gov Y1 - 2004/06/01/ PY - 2004 DA - 2004 Jun 01 SP - 2978 EP - 2986 VL - 38 IS - 11 SN - 0013-936X, 0013-936X KW - Polycyclic Aromatic Hydrocarbons KW - 0 KW - Water Pollutants, Chemical KW - Index Medicus KW - Rivers KW - Environmental Monitoring KW - Reproducibility of Results KW - Geologic Sediments -- chemistry KW - Water Pollutants, Chemical -- analysis KW - Water Supply KW - Polycyclic Aromatic Hydrocarbons -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66657376?accountid=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=Environmental+science+%26+technology&rft.atitle=Contaminant+trends+in+reservoir+sediment+cores+as+records+of+influent+stream+quality.&rft.au=Van+Metre%2C+Peter+C%3BMahler%2C+Barbara+J&rft.aulast=Van+Metre&rft.aufirst=Peter&rft.date=2004-06-01&rft.volume=38&rft.issue=11&rft.spage=2978&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 completed - 2004-10-05 N1 - Date created - 2004-06-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - The youngest species of the aquatic sloth Thalassocnus and a reassessment of the relationships of the nothrothere sloths (Mammalia, Xenarthra) AN - 51803966; 2004-070912 AB - Two new specimens of the aquatic sloth Thalassocnus from the Pliocene of Peru are described, one of T. carolomartini McDonald and Muizon, 2002 and the other T. yaucensis, sp. nov. Comparisons with the type species of Thalassocnus, T. natans, demonstrates that T. carolomartini and T. yaucensis are more similar morphologically to each other than to other species of the genus and are more derived. For example, both have a more elongated rostrum (premaxillae and mandibular spout) and more robust, quadrate to circular molariform teeth. The aquatic sloth Thalassocnus is sufficiently distinct morphologically that it is placed in a new subfamily, the Thalassocninae, and the Nothrotheriinae is raised to family rank. The morphological features shared by T. carolomartini and T. yaucensis indicate these species were better adapted to grazing on marine vegetation than earlier species of Thalassocnus. JF - Journal of Vertebrate Paleontology AU - de Muizon, Christian AU - McDonald, H Gregory AU - Salas, Rodolfo AU - Urbina, Mario Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 387 EP - 397 PB - University of Oklahoma, Norman, OK VL - 24 IS - 2 SN - 0272-4634, 0272-4634 KW - holotypes KW - type specimens KW - type localities KW - Nothotheriidae KW - Thalassocnus natans KW - Thalassocnus KW - paleoecology KW - new taxa KW - Cenozoic KW - Theria KW - skull KW - bones KW - Thalassocnus carolomartini KW - Pisco Formation KW - Peru KW - taxonomy KW - Eutheria KW - Yauca Peru KW - Chordata KW - Sacaco Peru KW - Mammalia KW - teeth KW - Thalassocnus yaucensis KW - morphology KW - Tertiary KW - South America KW - biometry KW - Xenarthra KW - Neogene KW - Pliocene KW - Vertebrata KW - Edentata KW - aquatic environment KW - Tetrapoda KW - 11:Vertebrate paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51803966?accountid=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=The+youngest+species+of+the+aquatic+sloth+Thalassocnus+and+a+reassessment+of+the+relationships+of+the+nothrothere+sloths+%28Mammalia%2C+Xenarthra%29&rft.au=de+Muizon%2C+Christian%3BMcDonald%2C+H+Gregory%3BSalas%2C+Rodolfo%3BUrbina%2C+Mario&rft.aulast=de+Muizon&rft.aufirst=Christian&rft.date=2004-06-01&rft.volume=24&rft.issue=2&rft.spage=387&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 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 37 N1 - PubXState - OK N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquatic environment; biometry; bones; Cenozoic; Chordata; Edentata; Eutheria; holotypes; Mammalia; morphology; Neogene; new taxa; Nothotheriidae; paleoecology; Peru; Pisco Formation; Pliocene; Sacaco Peru; skull; South America; taxonomy; teeth; Tertiary; Tetrapoda; Thalassocnus; Thalassocnus carolomartini; Thalassocnus natans; Thalassocnus yaucensis; Theria; type localities; type specimens; Vertebrata; Xenarthra; Yauca Peru ER - TY - JOUR T1 - The evolution of feeding adaptations of the aquatic sloth Thalassocnus AN - 51801656; 2004-070913 AB - The aquatic sloth Thalassocnus is represented by five species that lived along the coast of Peru from the late Miocene through the late Pliocene. A detailed comparison of the cranial and mandibular anatomy of these species indicates different feeding adaptations. The three older species of Thalassocnus (T. antiquus, T. natans, and T. littoralis) were probably partial grazers (intermediate or mixed feeders) and the transverse component of mandibular movement was very minor, if any. They were probably feeding partially on stranded sea weeds or sea grasses, or in very shallow waters (less than 1 m) as indicated by the abundant dental striae of their molariform teeth created by ingestion of sand. The two younger species (T. carolomartini and T. yaucensis) were more specialized grazers than the three older species and had a distinct transverse component in their mandibular movement. Their teeth almost totally lack dental striae. These two species were probably feeding exclusively in the water at a greater depth than the older species. JF - Journal of Vertebrate Paleontology AU - de Muizon, Christian AU - McDonald, H Gregory AU - Salas, Rodolfo AU - Urbina, Mario Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 398 EP - 410 PB - University of Oklahoma, Norman, OK VL - 24 IS - 2 SN - 0272-4634, 0272-4634 KW - shallow-water environment KW - Thalassocnus antiquus KW - feeding KW - Nothotheriidae KW - Thalassocnus natans KW - Thalassocnus KW - Thalassocnus littoralis KW - paleoecology KW - Cenozoic KW - Theria KW - skull KW - Thalassocnus carolomartini KW - Pisco Formation KW - Peru KW - taxonomy KW - Eutheria KW - Yauca Peru KW - Chordata KW - Sacaco Peru KW - Mammalia KW - biologic evolution KW - teeth KW - Thalassocnus yaucensis KW - adaptation KW - morphology KW - Tertiary KW - South America KW - biometry KW - Xenarthra KW - functional morphology KW - Neogene KW - marine environment KW - Pliocene KW - coastal environment KW - Vertebrata KW - Edentata KW - aquatic environment KW - Tetrapoda KW - 11:Vertebrate paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51801656?accountid=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=The+evolution+of+feeding+adaptations+of+the+aquatic+sloth+Thalassocnus&rft.au=de+Muizon%2C+Christian%3BMcDonald%2C+H+Gregory%3BSalas%2C+Rodolfo%3BUrbina%2C+Mario&rft.aulast=de+Muizon&rft.aufirst=Christian&rft.date=2004-06-01&rft.volume=24&rft.issue=2&rft.spage=398&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 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 38 N1 - PubXState - OK N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - adaptation; aquatic environment; biologic evolution; biometry; Cenozoic; Chordata; coastal environment; Edentata; Eutheria; feeding; functional morphology; Mammalia; marine environment; morphology; Neogene; Nothotheriidae; paleoecology; Peru; Pisco Formation; Pliocene; Sacaco Peru; shallow-water environment; skull; South America; taxonomy; teeth; Tertiary; Tetrapoda; Thalassocnus; Thalassocnus antiquus; Thalassocnus carolomartini; Thalassocnus littoralis; Thalassocnus natans; Thalassocnus yaucensis; Theria; Vertebrata; Xenarthra; Yauca Peru ER - TY - JOUR T1 - Decadal-scale climate drivers for glacial dynamics in Glacier National Park, Montana, USA AN - 51732206; 2005-030156 JF - Geophysical Research Letters AU - Pederson, Gregory T AU - Fagre, Daniel B AU - Gray, Stephen T AU - Graumlich, Lisa J Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 4 PB - American Geophysical Union, Washington, DC VL - 31 IS - 12 SN - 0094-8276, 0094-8276 KW - United States KW - North America KW - decadal variations KW - Quaternary KW - glaciers KW - paleoclimatology KW - Holocene KW - climate change KW - Montana KW - Glacier National Park KW - Cenozoic KW - ice movement KW - snowpack KW - paleoenvironment KW - tree rings KW - Neoglacial KW - snow KW - moraines KW - reconstruction KW - glacial geology KW - Rocky Mountains KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51732206?accountid=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=Geophysical+Research+Letters&rft.atitle=Decadal-scale+climate+drivers+for+glacial+dynamics+in+Glacier+National+Park%2C+Montana%2C+USA&rft.au=Pederson%2C+Gregory+T%3BFagre%2C+Daniel+B%3BGray%2C+Stephen+T%3BGraumlich%2C+Lisa+J&rft.aulast=Pederson&rft.aufirst=Gregory&rft.date=2004-06-01&rft.volume=31&rft.issue=12&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2004GL019770 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 21 N1 - PubXState - DC N1 - Document feature - illus. incl. geol. sketch map, sect. N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - Cenozoic; climate change; decadal variations; glacial geology; Glacier National Park; glaciers; Holocene; ice movement; Montana; moraines; Neoglacial; North America; paleoclimatology; paleoenvironment; Quaternary; reconstruction; Rocky Mountains; snow; snowpack; tree rings; United States DO - http://dx.doi.org/10.1029/2004GL019770 ER - TY - JOUR T1 - Ponding duration, ponding frequency, and field indicators; a case study on three California, USA, playas AN - 51669277; 2005-072270 JF - Wetlands (Wilmington, NC) AU - Lichvar, Robert W AU - Gustina, Greg AU - Bolus, Robert L Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 406 EP - 413 PB - Society of Wetlands Scientists, Wilmington, NC VL - 24 IS - 2 SN - 0277-5212, 0277-5212 KW - United States KW - hydrology KW - lacustrine features KW - thematic mapper KW - terrestrial environment KW - rainfall KW - arid environment KW - surface water KW - playas KW - atmospheric precipitation KW - satellite methods KW - California KW - Kern County California KW - Edwards Air Force Base KW - runoff KW - Mojave Desert KW - geomorphology KW - military facilities KW - meteorology KW - rain KW - remote sensing KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51669277?accountid=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=Wetlands+%28Wilmington%2C+NC%29&rft.atitle=Ponding+duration%2C+ponding+frequency%2C+and+field+indicators%3B+a+case+study+on+three+California%2C+USA%2C+playas&rft.au=Lichvar%2C+Robert+W%3BGustina%2C+Greg%3BBolus%2C+Robert+L&rft.aulast=Lichvar&rft.aufirst=Robert&rft.date=2004-06-01&rft.volume=24&rft.issue=2&rft.spage=406&rft.isbn=&rft.btitle=&rft.title=Wetlands+%28Wilmington%2C+NC%29&rft.issn=02775212&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 29 N1 - PubXState - NC N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - arid environment; atmospheric precipitation; California; Edwards Air Force Base; geomorphology; hydrology; Kern County California; lacustrine features; meteorology; military facilities; Mojave Desert; playas; rain; rainfall; remote sensing; runoff; satellite methods; surface water; terrestrial environment; thematic mapper; United States ER - TY - JOUR T1 - Changes in geyser eruption behavior and remotely triggered seismicity in Yellowstone National Park produced by the 2002 M 7.9 Denali Fault earthquake, Alaska AN - 51334049; 2004-051536 AB - Following the 2002 M 7.9 Denali fault earthquake, clear changes in geyser activity and a series of local earthquake swarms were observed in the Yellowstone National Park area, despite the large distance of 3100 km from the epicenter. Several geysers altered their eruption frequency within hours after the arrival of large-amplitude surface waves from the Denali fault earthquake. In addition, earthquake swarms occurred close to major geyser basins. These swarms were unusual compared to past seismicity in that they occurred simultaneously at different geyser basins. We interpret these observations as being induced by dynamic stresses associated with the arrival of large-amplitude surface waves. We suggest that in a hydrothermal system dynamic stresses can locally alter permeability by unclogging existing fractures, thereby changing geyser activity. Furthermore, we suggest that earthquakes were triggered by the redistribution of hydrothermal fluids and locally increased pore pressures. Although changes in geyser activity and earthquake triggering have been documented elsewhere, here we present evidence for changes in a hydrothermal system induced by a large-magnitude event at a great distance, and evidence for the important role hydrothermal systems play in remotely triggering seismicity. JF - Geology (Boulder) AU - Husen, S AU - Taylor, R AU - Smith, R B AU - Healser, H Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 537 EP - 540 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 6 SN - 0091-7613, 0091-7613 KW - United States KW - fractured materials KW - national parks KW - elastic waves KW - observations KW - surface waves KW - geothermal systems KW - Denali Fault earthquake 2002 KW - seismicity KW - Yellowstone National Park KW - geysers KW - North America KW - Denali Fault KW - swarms KW - guided waves KW - stress KW - Park County Wyoming KW - public lands KW - thermal waters KW - Wyoming KW - eruptions KW - Teton County Wyoming KW - Alaska KW - seismic waves KW - earthquakes KW - permeability KW - 19:Seismology KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51334049?accountid=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=Geology+%28Boulder%29&rft.atitle=Changes+in+geyser+eruption+behavior+and+remotely+triggered+seismicity+in+Yellowstone+National+Park+produced+by+the+2002+M+7.9+Denali+Fault+earthquake%2C+Alaska&rft.au=Husen%2C+S%3BTaylor%2C+R%3BSmith%2C+R+B%3BHealser%2C+H&rft.aulast=Husen&rft.aufirst=S&rft.date=2004-06-01&rft.volume=32&rft.issue=6&rft.spage=537&rft.isbn=&rft.btitle=&rft.title=Geology+%28Boulder%29&rft.issn=00917613&rft_id=info:doi/10.1130%2FG20381.1 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 - 2004-01-01 N1 - Number of references - 33 N1 - PubXState - CO N1 - Document feature - illus. incl. block diag., sketch map N1 - SuppNotes - With GSA Data Repository Item 2004087 N1 - Last updated - 2012-06-07 N1 - CODEN - GLGYBA N1 - SubjectsTermNotLitGenreText - Alaska; Denali Fault; Denali Fault earthquake 2002; earthquakes; elastic waves; eruptions; fractured materials; geothermal systems; geysers; guided waves; national parks; North America; observations; Park County Wyoming; permeability; public lands; seismic waves; seismicity; stress; surface waves; swarms; Teton County Wyoming; thermal waters; United States; Wyoming; Yellowstone National Park DO - http://dx.doi.org/10.1130/G20381.1 ER - TY - JOUR T1 - Late Pleistocene Mylodont Sloth Paramylodon Harlani (Mammalia: Xenarthra) From Arizona AN - 20847907; 6052800 AB - The late Pleistocene ground sloth Paramylodon harlani was widely distributed across North America, but it is represented in Arizona by only 2 records. These include a nearly complete skeleton from the Richville Gravels near Springerville, Apache County, and a second partial skeleton from Shonto, Navajo County. Both specimens are from reportedly lacustrine deposits and suggest that the species was not adapted to xeric conditions. Thus, its distribution in the Southwest and potential for dispersal might have been determined by the presence of permanent water sources. JF - Southwestern Naturalist AU - McDonald, H G AU - Agenbroad, L D AU - Haden, C M AD - Geologic Resources Division, National Park Service, P.O. Box 25287, Denver, CO 80225, Greg_McDonald@nps.gov Y1 - 2004/06// PY - 2004 DA - Jun 2004 SP - 229 EP - 238 PB - Southwestern Association of Naturalists VL - 49 IS - 2 SN - 0038-4909, 0038-4909 KW - Ecology Abstracts KW - Deposits KW - Xenarthra KW - Mammalia KW - Dispersal KW - Paramylodon harlani KW - D 04050:Paleoecology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20847907?accountid=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=Late+Pleistocene+Mylodont+Sloth+Paramylodon+Harlani+%28Mammalia%3A+Xenarthra%29+From+Arizona&rft.au=McDonald%2C+H+G%3BAgenbroad%2C+L+D%3BHaden%2C+C+M&rft.aulast=McDonald&rft.aufirst=H&rft.date=2004-06-01&rft.volume=49&rft.issue=2&rft.spage=229&rft.isbn=&rft.btitle=&rft.title=Southwestern+Naturalist&rft.issn=00384909&rft_id=info:doi/10.1894%2F0038-4909%282004%290492.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0038-4909&volume=49&page=229 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-10-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Paramylodon harlani; Xenarthra; Mammalia; Deposits; Dispersal DO - http://dx.doi.org/10.1894/0038-4909(2004)049<0229:LPMSPH>2.0.CO;2 ER - TY - JOUR T1 - Distribution Of The White-Ankled Mouse (Peromyscus Pectoralis) In New Mexico AN - 20847881; 6052812 AB - The white-ankled mouse (Peromyscus pectoralis) was previously known only from Carlsbad Caverns National Park and nearby areas in extreme southeastern New Mexico. I discovered 15 new localities for P. pectoralis, which extend its distribution 225 km north-northwest. This new distribution does not represent a recent northward expansion of P. pectoralis in New Mexico but reflects the lack of mammalian surveys in the region and misidentification of museum specimens from past surveys. At present, the distribution of P. pectoralis in New Mexico includes the Guadalupe Mountains and lowland habitats between the Sacramento Mountains and Pecos River. JF - Southwestern Naturalist AU - Geluso, K AD - United States Geological Survey, Arid Lands Field Station, Museum of Southwestern Biology, University of New Mexico, Albuquerque, NM 87131, kgeluso@unm.edu Y1 - 2004/06// PY - 2004 DA - Jun 2004 SP - 283 EP - 288 PB - Southwestern Association of Naturalists VL - 49 IS - 2 SN - 0038-4909, 0038-4909 KW - Ecology Abstracts KW - Rivers KW - Mountains KW - Museums KW - National parks KW - Habitat KW - Peromyscus pectoralis KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20847881?accountid=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+White-Ankled+Mouse+%28Peromyscus+Pectoralis%29+In+New+Mexico&rft.au=Geluso%2C+K&rft.aulast=Geluso&rft.aufirst=K&rft.date=2004-06-01&rft.volume=49&rft.issue=2&rft.spage=283&rft.isbn=&rft.btitle=&rft.title=Southwestern+Naturalist&rft.issn=00384909&rft_id=info:doi/10.1894%2F0038-4909%282004%290492.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0038-4909&volume=49&page=283 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-10-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Peromyscus pectoralis; Mountains; National parks; Rivers; Museums; Habitat DO - http://dx.doi.org/10.1894/0038-4909(2004)049<0283:DOTWMP>2.0.CO;2 ER - TY - JOUR T1 - Geochemical characterization of tarballs on beaches along the California coast. Part I-- Shallow seepage impacting the Santa Barbara Channel Islands, Santa Cruz, Santa Rosa and San Miguel AN - 20823295; 5891969 AB - Tarballs are common along the southern California coastline. This study investigates tarballs from beaches along this coastline, with a focus on Santa Cruz, Santa Rosa, and San Miquel Islands in the Santa Barbara Channel. The tarballs were fingerprinted using biomarker and stable carbon isotope parameters, and then grouped according to genetic similarities. The data show that the tarballs are of natural and not anthropogenic origin and that all originate from source rock within the Miocene Monterey Formation via shallow seeps offshore. Sterane biomarker parameters were found to vary widely in the sample set. Biodegradation, especially of the regular steranes, is the primary process impacting the biomarker distributions in a large group of samples. The most common tarball occurrences appear to come from offshore seepage near the west end of Santa Cruz Island. Another major group most likely was transported north from near Santa Monica Bay. Several individual occurrences of some of these tarball groups also were found on beaches as far north as Pt. Reyes and as far south as San Diego, indicating significant long-distance dispersal by ocean currents. This study begins a library of tarball fingerprints to be used as a database to help distinguish between natural and anthropogenic tar occurrences all along the California coast, and to compare shallow seepage with future samples of deeper production oils from the same area. JF - Organic Geochemistry AU - Hostettler, F D AU - Rosenbauer, R J AU - Lorenson, T D AU - Dougherty, J AD - US Geological Survey, 345 Middlefield Rd. MS 409, Menlo Park, CA 94025, USA, fdhostet@usgs.gov Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 725 EP - 746 PB - Pergamon VL - 35 IS - 6 SN - 0146-6380, 0146-6380 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Isotopes KW - Biodegradation KW - Carbon isotopes KW - Biomarkers KW - Carbon KW - Islands KW - INE, USA, California KW - Coastal inlets KW - Seepages KW - Coasts KW - Marine KW - Beaches KW - Data processing KW - Geochemistry KW - Tar KW - Oils KW - biomarkers KW - Databases KW - Oceans KW - Dispersal KW - Q2 09262:Methods and instruments KW - A 01320:Microbial Degradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20823295?accountid=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=Organic+Geochemistry&rft.atitle=Geochemical+characterization+of+tarballs+on+beaches+along+the+California+coast.+Part+I--+Shallow+seepage+impacting+the+Santa+Barbara+Channel+Islands%2C+Santa+Cruz%2C+Santa+Rosa+and+San+Miguel&rft.au=Hostettler%2C+F+D%3BRosenbauer%2C+R+J%3BLorenson%2C+T+D%3BDougherty%2C+J&rft.aulast=Hostettler&rft.aufirst=F&rft.date=2004-06-01&rft.volume=35&rft.issue=6&rft.spage=725&rft.isbn=&rft.btitle=&rft.title=Organic+Geochemistry&rft.issn=01466380&rft_id=info:doi/10.1016%2Fj.orggeochem.2004.01.022 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Beaches; Biodegradation; Carbon isotopes; Tar; Geochemistry; Coastal inlets; Biomarkers; Seepages; Coasts; Isotopes; Data processing; Oils; biomarkers; Databases; Islands; Carbon; Oceans; Dispersal; INE, USA, California; Marine DO - http://dx.doi.org/10.1016/j.orggeochem.2004.01.022 ER - TY - JOUR T1 - Urbanization impacts on the structure and function of forested wetlands AN - 19932971; 6033276 AB - The exponential increase in population has fueled a significant demographic shift: 60% of the Earth's population will live in urban areas by 2030. While this population growth is significant in its magnitude, the ecological footprint of natural resource consumption and use required to sustain urban populations is even greater. The land use and cover changes accompanying urbanization (increasing human habitation coupled with resource consumption and extensive landscape modification) impacts natural ecosystems at multiple spatial scales. Because they generally occupy lower landscape positions and are linked to other ecosystems through hydrologic connections, the cascading effects of habitat alteration on watershed hydrology and nutrient cycling are particularly detrimental to wetland ecosystems. I reviewed literature relevant to these effects of urbanization on the structure and function of forested wetlands. Hydrologic changes caused by habitat fragmentation generally reduce species richness and abundance of plants, macroinvertebrates, amphibians, and birds with greater numbers of invasives and exotics. Reduction in soil saturation and lowered water tables result in greater nitrogen mineralization and nitrification in urban wetlands with higher probability of NO super(-) sub(3) export from the watershed. Depressional forested wetlands in urban areas can function as important sinks for sediments, nutrients, and metals. As urban ecosystems become the predominant human condition, there is a critical need for data specific to urban forested wetlands in order to better understand the role of these ecosystems on the landscape. JF - Urban Ecosystems AU - Faulkner, S AD - U.S. Geological Survey, National Wetlands Research Center, 700 Cajundome Blvd, Lafayette, LA 70506, USA., sfaulkner@usgs.gov Y1 - 2004/06// PY - 2004 DA - Jun 2004 SP - 89 EP - 106 PB - Kluwer Academic Publishers VL - 7 IS - 2 SN - 1083-8155, 1083-8155 KW - consumption KW - Sustainability Science Abstracts; Human Population KW - Environmental degradation KW - Ecosystem analysis KW - Forests KW - Wetlands KW - Resource utilization KW - Urban environments KW - Human impact KW - M3 1010:Issues in Sustainable Development KW - M1 110:Population-Environment Relations UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19932971?accountid=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=Urban+Ecosystems&rft.atitle=Urbanization+impacts+on+the+structure+and+function+of+forested+wetlands&rft.au=Faulkner%2C+S&rft.aulast=Faulkner&rft.aufirst=S&rft.date=2004-06-01&rft.volume=7&rft.issue=2&rft.spage=89&rft.isbn=&rft.btitle=&rft.title=Urban+Ecosystems&rft.issn=10838155&rft_id=info:doi/10.1023%2FB%3AUECO.0000036269.56249.66 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-10-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Environmental degradation; Ecosystem analysis; Forests; Wetlands; Resource utilization; Human impact; Urban environments DO - http://dx.doi.org/10.1023/B:UECO.0000036269.56249.66 ER - TY - JOUR T1 - Linking metal bioaccumulation of aquatic insects to their distribution patterns in a mining-impacted river AN - 19816416; 6080363 AB - Although the differential responses of stream taxa to metal exposure have been exploited for bioassessment and monitoring, the mechanisms affecting these responses are not well understood. In this study, the subcellular partitioning of metals in operationally defined metal-sensitive and detoxified fractions were analyzed in five insect taxa. Samples were collected in two separate years along an extensive metal contamination gradient in the Clark Fork River (MT, USA) to determine if interspecific differences in the metal concentrations of metal-sensitive fractions and detoxified fractions were linked to the differences in distributions of taxa relative to the gradient. Most of the Cd, Cu, and Zn body burdens were internalized and potentially biologically active in all taxa, although all taxa appeared to detoxify metals (e.g., metal bound to cytosolic metal-binding proteins). Metal concentrations associated with metal-sensitive fractions were highest in the mayflies Epeorus albertae and Serratella tibialis, which were rare or absent from the most contaminated sites but occurred at less contaminated sites. Relatively low concentrations of Cu were common to the tolerant taxa Hydropsyche spp. and Baetis spp., which were widely distributed and dominant in the most contaminated sections of the river. This suggested that distributions of taxa along the contamination gradient were more closely related to the bioaccumulation of Cu than of other metals. Metal bioaccumulation did not appear to explain the spatial distribution of the caddisfly Arctopsyche grandis, considered to be a bioindicator of metal effects in the river. Thus, in this system the presence/absence of most of these taxa from sites where metal exposure was elevated could be differentiated on the basis of differences in metal bioaccumulation. JF - Environmental Toxicology and Chemistry AU - Cain, D J AU - Luoma, S N AU - Wallace, W G AD - US Geological Survey, Menlo Park, California 94025, djcain@usgs.gov Y1 - 2004/06// PY - 2004 DA - Jun 2004 SP - 1463 EP - 1473 VL - 23 IS - 6 SN - 0730-7268, 0730-7268 KW - Ephemeroptera KW - ASFA 3: Aquatic Pollution & Environmental Quality; Entomology Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts; Aqualine Abstracts; Water Resources Abstracts; Pollution Abstracts KW - Contamination KW - Heavy metals KW - Arctopsyche grandis KW - Copper KW - Freshwater KW - Spatial Distribution KW - Exposure KW - Distribution KW - Cadmium KW - Baetis KW - Epeorus albertae KW - Aquatic insects KW - Toxicology KW - Bioindicators KW - Rivers KW - Metals KW - Environmental impact KW - Hydropsyche KW - Mayflies KW - Insects KW - Serratella tibialis KW - Mine Wastes KW - Mining KW - Monitoring KW - Pollution monitoring KW - Geographical distribution KW - Spatial distribution KW - Aquatic Insects KW - Ecological distribution KW - Pollution effects KW - Streams KW - Distribution Patterns KW - USA, Montana, Clark Fork R. KW - USA, Montana KW - Caddisflies KW - Body burden KW - Geochemistry KW - USA KW - Bioaccumulation KW - Proteins KW - Indicator species KW - Q1 08302:Geographical distribution KW - D 04801:Pollution monitoring and detection KW - P 2000:FRESHWATER POLLUTION KW - Z 05210:Aquatic entomology 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/19816416?accountid=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+and+Chemistry&rft.atitle=Linking+metal+bioaccumulation+of+aquatic+insects+to+their+distribution+patterns+in+a+mining-impacted+river&rft.au=Cain%2C+D+J%3BLuoma%2C+S+N%3BWallace%2C+W+G&rft.aulast=Cain&rft.aufirst=D&rft.date=2004-06-01&rft.volume=23&rft.issue=6&rft.spage=1463&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 - 2005-02-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Pollution monitoring; Geographical distribution; Body burden; Bioaccumulation; Heavy metals; Ecological distribution; Geochemistry; Pollution effects; Cadmium; Aquatic insects; Toxicology; Indicator species; Rivers; Metals; Spatial distribution; Mining; Bioindicators; Environmental impact; Copper; Caddisflies; Contamination; Aquatic Insects; Mayflies; Spatial Distribution; Streams; Insects; Distribution Patterns; Exposure; Distribution; Proteins; Mine Wastes; Monitoring; Hydropsyche; Arctopsyche grandis; Epeorus albertae; Baetis; Serratella tibialis; USA; USA, Montana, Clark Fork R.; USA, Montana; Freshwater ER - TY - JOUR T1 - Nutrient mass balance and trends, Mobile River basin, Alabama, Georgia, and Mississippi AN - 19404400; 5967586 AB - A nutrient mass balance - accounting for nutrient inputs from atmospheric deposition, fertilizer, crop nitrogen fixation, and point source effluents; and nutrient outputs, including crop harvest and storage - was calculated for 18 subbasins in the Mobile River Basin, and trends (1970 to 1997) were evaluated as part of the U.S. Geological Survey National Water Quality Assessment (NAWQA) Program. Agricultural nonpoint nitrogen and phosphorus sources and urban nonpoint nitrogen sources are the most important factors associated with nutrients in this system. More than 30 percent of nitrogen yield in two basins and phosphorus yield in eight basins can be attributed to urban point source nutrient inputs. The total nitrogen yield (1.3 tons per square mile per year) for the Tombigbee River, which drains a greater percentage of agricultural (row crop) land use, was larger than the total nitrogen yield (0.99 tons per square mile per year) for the Alabama River. Decreasing trends of total nitrogen concentrations in the Tombigbee and Alabama Rivers indicate that a reduction occurred from 1975 to 1997 in the nitrogen contributions to Mobile Bay from the Mobile River. Nitrogen concentrations also decreased (1980 to 1995) in the Black Warrior River, one of the major tributaries to the Tombigbee River. Total phosphorus concentrations increased from 1970 to 1996 at three urban influenced sites on the Etowah River in Georgia. Multiple regression analysis indicates a distinct association between water quality in the streams of the Mobile River drainage basin and agricultural activities in the basin. JF - Journal of the American Water Resources Association AU - Harned, DA AU - Atkins, J B AU - Harvill, J S AD - U.S. Geological Survey, 3916 Sunset Ridge Road, Raleigh, North Carolina 27607, USA, daharned@usgs.gov Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 765 EP - 793 VL - 40 IS - 3 SN - 1093-474X, 1093-474X KW - Meteorological & Geoastrophysical Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 1: Biological Sciences & Living Resources; Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Land Use KW - USA, Mississippi, Tombigbee R. KW - Historical account KW - River Basins KW - Phosphorus KW - Water resources KW - Nutrients KW - Freshwater KW - Water quality KW - Crops KW - Fertilizers KW - Tributaries KW - Rivers KW - Nitrogen sources KW - Catchment Areas KW - Water Quality KW - USA, Georgia KW - River basins KW - Nonpoint pollution KW - Effluents KW - Land use KW - USA, Alabama, Mobile R. KW - Nitrogen fixation KW - Water management KW - Nutrients (mineral) KW - Nitrogen KW - Agriculture KW - USA, Tombigbee R. KW - Phosphorus sources KW - ASW, USA, Alabama, Mobile Bay KW - USA, Alabama, Alabama R. KW - Nitrogen Fixation KW - Regression analysis KW - USA, Georgia, Etowah R. KW - Drainage KW - Nonpoint Pollution Sources KW - Water pollution KW - USA, Alabama, Black Warrior R. KW - USA, Mississippi KW - M2 556.53:Rivers, Streams, Canals (556.53) KW - Q5 08503:Characteristics, behavior and fate KW - Q1 08482:Ecosystems and energetics KW - Q2 09185:Organic compounds KW - SW 3010:Identification of pollutants KW - P 2000:FRESHWATER POLLUTION KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19404400?accountid=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+mass+balance+and+trends%2C+Mobile+River+basin%2C+Alabama%2C+Georgia%2C+and+Mississippi&rft.au=Harned%2C+DA%3BAtkins%2C+J+B%3BHarvill%2C+J+S&rft.aulast=Harned&rft.aufirst=DA&rft.date=2004-06-01&rft.volume=40&rft.issue=3&rft.spage=765&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 - 2007-01-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Rivers; Fertilizers; Water management; Water resources; River basins; Nutrients (mineral); Effluents; Water quality; Tributaries; Water pollution; Phosphorus sources; Nitrogen sources; Nitrogen fixation; Drainage; Regression analysis; Land use; Agriculture; Historical account; Nutrients; Nonpoint pollution; Land Use; River Basins; Catchment Areas; Nonpoint Pollution Sources; Phosphorus; Water Quality; Crops; Nitrogen Fixation; Nitrogen; USA, Tombigbee R.; USA, Mississippi, Tombigbee R.; USA, Alabama, Alabama R.; USA, Alabama, Mobile R.; USA, Mississippi; USA, Alabama, Black Warrior R.; USA, Georgia, Etowah R.; ASW, USA, Alabama, Mobile Bay; USA, Georgia; Freshwater ER - TY - JOUR T1 - TRACKING OF WHITE-TAILED DEER MIGRATION BY GLOBAL POSITIONING SYSTEM AN - 19339486; 8697115 AB - We used global positioning system (GPS) radiocollars on female white-tailed deer (Odocoileus virginianus) to document details of onsets of migrations, rates of travel, patterns of travel, durations of migrations, and distances traveled by 8 deer in spring and 4 deer in autumn in northeastern Minnesota in 1998, 1999, and 2001. In spring, deer migrated 23-45 km during 31-356 h, deviating a maximum 1.6-4.0 km perpendicular from a straight line of travel between their seasonal ranges. They migrated a minimum of 2.1-18.6 km/day over 11-56 h during 2-14 periods of travel. Minimum travel during 1-h intervals averaged 1.5 km/h (SD = 0.6, n = 27). Deer paused 1-12 times, averaging 24 h/pause (SD = 29, n = 43, range 19-306 h/pause). Deer migrated similar distances in autumn with comparable rates and patterns of travel. A difference of 1.9- to 7.5-fold in duration of migrations by deer migrating the same distances suggests that much of the variation in durations may be independent of migration distance. JF - Journal of Mammalogy AU - Nelson, Michael E AU - Mech, LDavid AU - Frame, Paul F AD - Biological Resources Division, U.S. Geological Survey, Northern Prairie Wildlife Research Center, 8711 37th Street, SE, Jamestown, ND 58401-7317, USA (MEN, LDM), michael_e_nelson@usgs.gov Y1 - 2004/06// PY - 2004 DA - Jun 2004 SP - 505 EP - 510 PB - Allen Press, Inc., 810 East Tenth St. VL - 85 IS - 3 SN - 0022-2372, 0022-2372 KW - Animal Behavior Abstracts; Ecology Abstracts KW - GPS tracking KW - Odocoileus virginianus KW - deer KW - migration KW - movements KW - radiotracking KW - travel KW - Travel KW - Migration KW - Y 25080:Orientation, Migration and Locomotion KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19339486?accountid=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=TRACKING+OF+WHITE-TAILED+DEER+MIGRATION+BY+GLOBAL+POSITIONING+SYSTEM&rft.au=Nelson%2C+Michael+E%3BMech%2C+LDavid%3BFrame%2C+Paul+F&rft.aulast=Nelson&rft.aufirst=Michael&rft.date=2004-06-01&rft.volume=85&rft.issue=3&rft.spage=505&rft.isbn=&rft.btitle=&rft.title=Journal+of+Mammalogy&rft.issn=00222372&rft_id=info:doi/10.1644%2FBOS-120 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-12-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Travel; Migration; Odocoileus virginianus DO - http://dx.doi.org/10.1644/BOS-120 ER - TY - JOUR T1 - Comparison of ground-water flow model particle-tracking results and isotopic data in the Mojave River ground-water basin, southern California, USA AN - 18056088; 5903995 AB - Flow-path and time-of-travel results for the Mojave River ground-water basin, southern California, calculated using the ground-water flow model MODFLOW and particle-tracking model MODPATH were similar to flow path and time-of-travel interpretations derived from delta-deuterium and carbon-14 data. Model and isotopic data both show short flow paths and young ground-water ages throughout the floodplain aquifer along most the Mojave River. Longer flow paths and older ground-water ages as great as 10, 000 years before present were measured and simulated in the floodplain aquifer near the Mojave Valley. Model and isotopic data also show movement of water between the floodplain and regional aquifer and subsequent discharge of water from the river to dry lakes in some areas. It was not possible to simulate the isotopic composition of ground-water in the regional aquifer away from the front of the San Gabriel and San Bernardino Mountains--because recharge in these areas does not occur under the present-day climatic conditions used for calibration of the model. JF - Journal of Hydrology (Amsterdam) AU - Izbicki, JA AU - Stamos, CL AU - Nishikawa, T AU - Martin, P AD - US Geological Survey, 5735 Kearny Villa Road, Suite O, San Diego, CA 92123, USA, jaizbick@usgs.gov Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 30 EP - 47 PB - Elsevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl] VL - 292 IS - 1-4 SN - 0022-1694, 0022-1694 KW - Aqualine Abstracts; Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Ground water KW - Hydrogeology KW - Isotopes KW - Modeling KW - Arid environments KW - C-14 KW - Aquifers KW - River Basins KW - Isotope applications KW - Climatic conditions KW - Hydrologic Models KW - Calibrations KW - Playas KW - Hydrology KW - River Flow KW - Tracer techniques KW - Model calibration KW - Groundwater flow KW - Climate KW - River discharge KW - River basins KW - Valleys KW - USA, California, Mojave R. KW - Flood Plains KW - Flood plains KW - Surface-groundwater Relations KW - Groundwater Movement KW - Groundwater Recharge KW - AQ 00001:Water Resources and Supplies KW - SW 0850:Lakes KW - Q2 09127:General papers on resources KW - M2 556.34:Groundwater Flow (556.34) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18056088?accountid=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=Comparison+of+ground-water+flow+model+particle-tracking+results+and+isotopic+data+in+the+Mojave+River+ground-water+basin%2C+southern+California%2C+USA&rft.au=Izbicki%2C+JA%3BStamos%2C+CL%3BNishikawa%2C+T%3BMartin%2C+P&rft.aulast=Izbicki&rft.aufirst=JA&rft.date=2004-06-01&rft.volume=292&rft.issue=1-4&rft.spage=30&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology+%28Amsterdam%29&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2003.12.034 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Flood plains; Climate; River discharge; Ground water; Hydrology; River basins; Aquifers; Model calibration; Groundwater flow; Tracer techniques; Isotope applications; Climatic conditions; Flood Plains; River Basins; Hydrologic Models; Calibrations; Surface-groundwater Relations; Playas; River Flow; Valleys; Groundwater Recharge; Groundwater Movement; USA, California, Mojave R. DO - http://dx.doi.org/10.1016/j.jhydrol.2003.12.034 ER - TY - JOUR T1 - Habitat Use and Home Range of the Laysan Teal on Laysan Island, Hawaii AN - 18043100; 5940064 AB - The 24-hour habitat use and home range of the Laysan Teal (Anas laysanensis), an endemic dabbling duck in Hawaii, was studied using radio telemetry during 1998-2000. Radios were retained for a mean of 40 days (0-123 d; 73 adult birds radio- tagged). Comparisons of daily habitat use were made for birds in the morning, day, evening, and night. Most birds showed strong evidence of selective habitat use. Adults preferred the terrestrial vegetation (88%), and avoided the lake and wetlands during the day. At night, 63% of the birds selected the lake and wetlands. Nocturnal habitat use differed significantly between the non-breeding and breeding seasons, while the lake and wetland habitats were used more frequently during the non-breeding season. Most individuals showed strong site fidelity during the study, but habitat selection varied between individuals. Mean home range size was 9.78 ha (SE plus or minus 2.6) using the fixed kernel estimator (95% kernel; 15 birds, each with >25 locations). The average minimum convex polygon size was 24 ha (SE plus or minus 5.6). The mean distance traveled between tracking locations was 178 m (SE plus or minus 30.5), with travel distances between points ranging up to 1,649 m. Tracking duration varied from 31-121 days per bird (mean tracking duration 75 days). JF - Waterbirds AU - Reynolds, M H AD - U.S. Geological Survey, PO Box 44 Kilauea Field Station, Pacific Island Ecosystem Research Center, Hawaii National Park, HI 96718, USA, Michelle_Reynolds@usgs.gov Y1 - 2004/06// PY - 2004 DA - Jun 2004 SP - 183 EP - 192 VL - 27 IS - 2 SN - 1524-4695, 1524-4695 KW - Aquatic birds KW - Laysan duck KW - ASFA 1: Biological Sciences & Living Resources; Animal Behavior Abstracts; Ecology Abstracts KW - USA, Hawaii, Laysan I. KW - Diurnal variations KW - Anas laysanensis KW - Freshwater KW - Habitat selection KW - Radio-tagging KW - Tracking KW - Biotelemetry KW - Breeding seasons KW - Endemic species KW - Endangered species KW - Habitat utilization KW - Wetlands KW - Home range KW - D 04671:Birds KW - Q1 08361:General KW - Y 25506:Birds KW - Q1 08423:Behaviour UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18043100?accountid=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=Habitat+Use+and+Home+Range+of+the+Laysan+Teal+on+Laysan+Island%2C+Hawaii&rft.au=Reynolds%2C+M+H&rft.aulast=Reynolds&rft.aufirst=M&rft.date=2004-06-01&rft.volume=27&rft.issue=2&rft.spage=183&rft.isbn=&rft.btitle=&rft.title=Waterbirds&rft.issn=15244695&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Breeding seasons; Diurnal variations; Endemic species; Home range; Wetlands; Habitat selection; Biotelemetry; Tracking; Aquatic birds; Endangered species; Habitat utilization; Radio-tagging; Anas laysanensis; USA, Hawaii, Laysan I.; Freshwater ER - TY - JOUR T1 - Identifying areas of basin-floor recharge in the Trans-Pecos region and the link to vegetation AN - 18041763; 5903999 AB - Comparative water potential and chloride profiles ( similar to 10 m deep) collected from four vegetation communities in the Trans-Pecos region of the Chihuahuan Desert were assessed to evaluate the potential for using vegetation patterns as a means of efficiently improving large-scale estimates of basin-floor recharge in semiarid and arid regions. Analytical solutions and multiphase flow and transport modeling constrained flux histories and current fluxes across the water table at each site. Chloride bulge profiles containing ~12-15 kyr of atmospheric deposition and long-term drying water potential profiles typified most desertscrub and grassland sites. In contrast, evidence of episodic sub-root zone percolation and chloride profiles containing <250 yr of atmospheric deposition characterized the woodland site. The results suggested that the desertscrub and grassland areas support small upward fluxes across the water table (nonrecharge), whereas the woodland site supports significant downward fluxes across the water table (recharge). A nonrecharge-recharge transition was identified to be collocated with a grassland-woodland ecotone. The establishment of vegetation-recharge relationships such as this will improve estimates of basin-scale recharge by identifying regions where no recharge is expected and regions where recharge is expected and point measurements should be concentrated. An approach integrating remotely sensed spatial distributions of vegetation and indicator relationships to recharge is both timely and warranted, although several caveats, as revealed in this study, should be noted. For example, the relative importance and distribution of vertical conduits that permit percolation to the water table merits future investigation. JF - Journal of Hydrology (Amsterdam) AU - Walvoord, MA AU - Phillips, F M AD - Department of Earth and Environmental Science, New Mexico Institute of Mining and Technology, Socorro, NM 87801, USA, walvoord@usgs.gov Y1 - 2004/06// PY - 2004 DA - Jun 2004 SP - 59 EP - 74 PB - Elsevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl/] VL - 292 IS - 1-4 SN - 0022-1694, 0022-1694 KW - Meteorological & Geoastrophysical Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Recharge KW - Semiarid zone hydrology KW - Spatial distribution KW - Chlorides KW - Water Table KW - Arid Lands KW - Semiarid Lands KW - Percolation KW - Mexico, Chihuahuan Desert KW - Water Potentials KW - Arid zone hydrology KW - Vegetation influences KW - Chemistry of water KW - AQ 00001:Water Resources and Supplies KW - SW 0860:Water and plants KW - M2 551.579:Hydrometeorology (551.579) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18041763?accountid=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=Identifying+areas+of+basin-floor+recharge+in+the+Trans-Pecos+region+and+the+link+to+vegetation&rft.au=Walvoord%2C+MA%3BPhillips%2C+F+M&rft.aulast=Walvoord&rft.aufirst=MA&rft.date=2004-06-01&rft.volume=292&rft.issue=1-4&rft.spage=59&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology+%28Amsterdam%29&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2003.12.029 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Chlorides; Percolation; Water Potentials; Recharge; Arid Lands; Semiarid Lands; Water Table; Mexico, Chihuahuan Desert; Vegetation influences; Chemistry of water; Arid zone hydrology; Semiarid zone hydrology; Spatial distribution DO - http://dx.doi.org/10.1016/j.jhydrol.2003.12.029 ER - TY - JOUR T1 - Habitat Selection by Tundra Swans on Northern Alaska Breeding Grounds AN - 18033755; 5940069 AB - Habitat selection by the Tundra Swan (Cygnus columbianus columbianus) was evaluated on the Colville River Delta prior to oil field development (1982-1989). Tundra Swan territories comprised a lake, used for refuge and foraging, and terrestrial habitats and ponds near the lake's perimeter used for foraging and nesting. Tundra swan sightings from early and late summer aerial surveys were used to investigate habitat selection at the territory and within-territory scale. At the territory or lake scale, swan sightings/lake increased with lake size, and increased from discrete to tapped (i.e., connected to a river channel) to drained lakes within size categories. Overall, 49% of the variation in swan sightings/lake was explained by lake size and type, a size-x-type interaction term, and the proportion of lake perimeter comprised of Halophytic Ponds and Halophytic Wet Meadows. At the within-territory or within-lake scale, foraging swans significantly selected Halophytic Ponds, Halophytic Wet Meadows, and Fresh Ponds relative to Uplands; nesting swans significantly selected Halophytic Ponds and significantly avoided Fresh Wet Meadows relative to Uplands. Vegetation sampling indicated that sites used by Tundra Swans on river channels and tapped lakes were significantly more likely to have Sheathed Pondweed (Potamogeton vaginatus) than control sites. The three major components of Tundra Swan diet were Carex sedges, Sheathed Pondweed, and algae, together comprising 85% of identifiable plant fragments in feces. JF - Waterbirds AU - Earnst, S L AU - Rothe, T C AD - USGS, Forest and Rangeland Ecosystem Science Center, 970 Lusk Street, Boise, ID 83706, USA, Susan_Earnst@usgs.gov Y1 - 2004/06// PY - 2004 DA - Jun 2004 SP - 224 EP - 233 VL - 27 IS - 2 SN - 1524-4695, 1524-4695 KW - Aquatic birds KW - Whistling swan KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts KW - Food organisms KW - Freshwater KW - Aerial surveys KW - Habitat selection KW - Nests KW - Ponds KW - Potamogeton vaginatus KW - Lakes KW - Habitat utilization KW - Wetlands KW - Reproductive behaviour KW - Algae KW - USA, Alaska KW - Diets KW - Freshwater environments KW - Aquatic plants KW - Brackish KW - USA, Alaska, North Slope, Colville Delta KW - Foraging behaviour KW - Breeding sites KW - Carex KW - Home range KW - Cygnus columbianus columbianus KW - Q5 08523:Conservation, wildlife management and recreation KW - D 04671:Birds KW - Q1 08361:General KW - Q1 08423:Behaviour UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18033755?accountid=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=Habitat+Selection+by+Tundra+Swans+on+Northern+Alaska+Breeding+Grounds&rft.au=Earnst%2C+S+L%3BRothe%2C+T+C&rft.aulast=Earnst&rft.aufirst=S&rft.date=2004-06-01&rft.volume=27&rft.issue=2&rft.spage=224&rft.isbn=&rft.btitle=&rft.title=Waterbirds&rft.issn=15244695&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Diets; Food organisms; Aquatic plants; Habitat selection; Aerial surveys; Ponds; Nests; Foraging behaviour; Lakes; Breeding sites; Home range; Wetlands; Reproductive behaviour; Freshwater environments; Habitat utilization; Carex; Cygnus columbianus columbianus; Potamogeton vaginatus; Algae; USA, Alaska; USA, Alaska, North Slope, Colville Delta; Freshwater; Brackish ER - TY - JOUR T1 - A Simple Technique for Trapping Siren lacertina, Amphiuma means, and Other Aquatic Vertebrates AN - 18033586; 5934933 AB - We describe a commercially-available funnel trap for sampling aquatic vertebrates. The traps can be used in heavily vegetated wetlands and can be set in water up to 60 cm deep without concern for drowning the animals. They were especially useful for capturing the aquatic salamanders Siren lacertina and Amphiuma means, which have been difficult to capture with traditional sampling methods. They also were effective for sampling small fishes, particularly centrarchids, and larval anurans. In total, 14 species of amphibians, nine species of aquatic reptiles, and at least 32 fish species were captured. The trap we describe differs significantly from traditional funnel traps (e.g., minnow traps) and holds great promise for studies of small, aquatic vertebrates, in particular Siren and Amphiuma species. JF - Journal of Freshwater Ecology AU - Johnson, SA AU - Barichivich, W J AD - US Geological Survey, Florida Integrated Science Center, 7920 NW 71st Street, Gainesville, FL 32653 USA, steve_johnson@usgs.gov Y1 - 2004/06// PY - 2004 DA - Jun 2004 SP - 263 VL - 19 IS - 2 SN - 0270-5060, 0270-5060 KW - Frogs KW - Greater siren KW - Sunfishes KW - Toads KW - Two-toed amphiuma KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Siren lacertina KW - Amphibiotic species KW - Centrarchidae KW - Aquatic reptiles KW - Anura KW - Catching methods KW - Larvae KW - Freshwater KW - Collecting devices KW - Trapping KW - Samplers KW - Fish larvae KW - Traps KW - Amphiuma means KW - Wetlands KW - Trap fishing KW - Freshwater organisms KW - Sampling KW - Biological sampling KW - Q1 08382:Ecological techniques and apparatus KW - D 04669:Amphibians UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18033586?accountid=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=A+Simple+Technique+for+Trapping+Siren+lacertina%2C+Amphiuma+means%2C+and+Other+Aquatic+Vertebrates&rft.au=Johnson%2C+SA%3BBarichivich%2C+W+J&rft.aulast=Johnson&rft.aufirst=SA&rft.date=2004-06-01&rft.volume=19&rft.issue=2&rft.spage=263&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 - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Amphibiotic species; Aquatic reptiles; Larvae; Catching methods; Freshwater organisms; Trap fishing; Wetlands; Collecting devices; Biological sampling; Fish larvae; Samplers; Traps; Sampling; Trapping; Siren lacertina; Centrarchidae; Anura; Amphiuma means; Freshwater ER - TY - JOUR T1 - Stand development on reforested bottomlands in the Mississippi Alluvial Valley AN - 17996642; 5928504 AB - Reforestation of bottomland hardwood sites in the southeastern United States has markedly increased in recent years due, in part, to financial incentives provided by conservation programs. Currently >250,000 ha of marginal farmland have been returned to hardwood forests. I observed establishment of trees and shrubs on 205 reforested bottomlands: 133 sites were planted primarily with oak species (Quercus spp.), 60 sites were planted with pulpwood producing species (Populus deltoides, Liquidambar styraciflua, or Platanus occidentalis), and 12 sites were not planted (i.e., passive regeneration). Although oak sites were planted with more species, sites planted with pulpwood species were more rapidly colonized by additional species. The density of naturally colonizing species exceeded that of planted species but density of invaders decreased rapidly with distance from forest edge. Trees were shorter in height on sites planted with oaks than on sites planted with pulpwood species but within a site, planted trees attained greater heights than did colonizing species. Thus, planted trees dominated the canopy of reforested sites as they matured. Planted species acted in concert with natural invasion to influence the current condition of woody vegetation on reforested sites. Cluster analysis of species importance values distinguished three woody vegetation conditions: (1) Populus deltoides stands (2) oak stands with little natural invasion by other tree species, and (3) stands dominated by planted or naturally invading species other than oaks. Increased diversity on reforested sites would likely result from (a) greater diversity of planted species, particularly when sites are far from existing forest edges and (b) thinning of planted trees as they attain closed canopies. JF - Plant Ecology AU - Twedt, D J AD - USGS - Patuxent Wildlife Research Center, 2524 South Frontage Road, Vicksburg, MS 39180, USA Y1 - 2004/06// PY - 2004 DA - Jun 2004 SP - 251 EP - 263 PB - Kluwer Academic Publishers VL - 172 IS - 2 SN - 1385-0237, 1385-0237 KW - Oaks KW - Eastern cottonwood KW - Sweetgum KW - American Sycamore KW - Ecology Abstracts KW - Shrubs KW - Colonization KW - USA KW - Platanus occidentalis KW - Trees KW - Quercus KW - Populus deltoides KW - Liquidambar styraciflua KW - Reforestation KW - D 04125:Temperate forests UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17996642?accountid=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=Stand+development+on+reforested+bottomlands+in+the+Mississippi+Alluvial+Valley&rft.au=Twedt%2C+D+J&rft.aulast=Twedt&rft.aufirst=D&rft.date=2004-06-01&rft.volume=172&rft.issue=2&rft.spage=251&rft.isbn=&rft.btitle=&rft.title=Plant+Ecology&rft.issn=13850237&rft_id=info:doi/10.1023%2FB%3AVEGE.0000026344.29613.4a LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Quercus; Populus deltoides; Liquidambar styraciflua; Platanus occidentalis; USA; Reforestation; Trees; Shrubs; Colonization DO - http://dx.doi.org/10.1023/B:VEGE.0000026344.29613.4a ER - TY - JOUR T1 - Calculation of individual isotope equilibrium constants for geochemical reactions AN - 17978621; 5912828 AB - Theory is derived from the work of Urey (Urey H. C. [1947] The thermodynamic properties of isotopic substances. J. Chem. Soc. 562-581) to calculate equilibrium constants commonly used in geochemical equilibrium and reaction- transport models for reactions of individual isotopic species. Urey showed that equilibrium constants of isotope exchange reactions for molecules that contain two or more atoms of the same element in equivalent positions are related to isotope fractionation factors by alpha = (K super(ex)) super(1/n), where n is the number of atoms exchanged. This relation is extended to include species containing multiple isotopes, for example super(13)C super(16)O super(18)O and super(1)H super(2)H super(18)O. The equilibrium constants of the isotope exchange reactions can be expressed as ratios of individual isotope equilibrium constants for geochemical reactions. Knowledge of the equilibrium constant for the dominant isotopic species can then be used to calculate the individual isotope equilibrium constants. Individual isotope equilibrium constants are calculated for the reaction CO sub(2g) = CO sub(2aq) for all species that can be formed from super(12)C, super(13)C, super(16)O, and super(18)O; for the reaction between super(12)C super(18)O sub(2aq) and super(1)H sub(2) super(18)O sub(l); and among the various super(1)H, super(2)H, super(16)O, and super(18)O species of H sub(2)O. This is a subset of a larger number of equilibrium constants calculated elsewhere (Thorstenson D. C. and Parkhurst D. L. [2002] Calculation of individual isotope equilibrium constants for implementation in geochemical models. Water-Resources Investigation Report 02-4172. U.S. Geological Survey). Activity coefficients, activity-concentration conventions for the isotopic variants of H sub(2)O in the solvent super(1)H sub(2) super(16)O sub(l), and salt effects on isotope fractionation have been included in the derivations. The effects of nonideality are small because of the chemical similarity of different isotopic species of the same molecule or ion. The temperature dependence of the individual isotope equilibrium constants can be calculated from the temperature dependence of the fractionation factors. The derivations can be extended to calculation of individual isotope equilibrium constants for ion pairs and equilibrium constants for isotopic species of other chemical elements. The individual isotope approach calculates the same phase isotopic compositions as existing methods, but also provides concentrations of individual species, which are needed in calculations of mass-dependent effects in transport processes. The equilibrium constants derived in this paper are used to calculate the example of gas-water equilibrium for CO sub(2) in an acidic aqueous solution. JF - Geochimica et Cosmochimica Acta AU - Thorstenson, D C AU - Parkhurst, D L AD - U.S. Geological Survey, Box 25046, MS 413, Denver Federal Center, Denver, CO 80225, USA, dlpark@usgs.gov Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 2449 EP - 2465 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 68 IS - 11 SN - 0016-7037, 0016-7037 KW - Water Resources Abstracts; Aqualine Abstracts KW - Thermodynamics KW - Geochemistry KW - Temperature KW - Solvents KW - Model Studies KW - Salts KW - Equilibrium KW - Isotope Fractionation KW - AQ 00001:Water Resources and Supplies KW - SW 0880:Chemical processes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17978621?accountid=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=Geochimica+et+Cosmochimica+Acta&rft.atitle=Calculation+of+individual+isotope+equilibrium+constants+for+geochemical+reactions&rft.au=Thorstenson%2C+D+C%3BParkhurst%2C+D+L&rft.aulast=Thorstenson&rft.aufirst=D&rft.date=2004-06-01&rft.volume=68&rft.issue=11&rft.spage=2449&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2003.11.027 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-12-21 N1 - SubjectsTermNotLitGenreText - Salts; Thermodynamics; Equilibrium; Geochemistry; Solvents; Temperature; Isotope Fractionation; Model Studies DO - http://dx.doi.org/10.1016/j.gca.2003.11.027 ER - TY - JOUR T1 - Differential parasitism of seed-feeding Cydia (Lepidoptera: Tortricidae) by native and alien wasp species relative to elevation in subalpine Sophora (Fabaceae) forests on Mauna Kea, Hawaii AN - 17870521; 6383267 AB - Alien parasitic wasps, including accidental introductions and purposefully released biological control agents, have been implicated in the decline of native Hawaiian Lepidoptera. Understanding the potential impacts of alien wasps requires knowledge of ecological parameters that influence parasitism rates for species in their new environment. Sophora seed-feeding Cydia spp. (Lepidoptera: Tortricidae) were surveyed for larval parasitoids to determine how native and alien wasps are partitioned over an elevation gradient (2200-2800 m) on Hawaii Island, Hawaii. Parasitism rate of native Euderus metallicus (Eulophidae) increased with increased elevation, while parasitism rate by immigrant Calliephialtes grapholithae (Ichneumonidae) decreased. Parasitism by Pristomerus hawaiiensis (Ichneumonidae), origins uncertain, also decreased with increased elevation. Two other species, Diadegma blackburni (Ichneumonidae), origins uncertain, and Brasema cushmani (Eupelmidae), a purposefully introduced biological control agent for pepper weevil, did not vary significantly with elevation. Results are contrasted with a previous study of this system with implications for the conservation of an endangered bird species that feed on Cydia larvae. Interpretation of results is hindered by lack of knowledge of autecology of moths and wasps, origins, phylogeny, systematics, competitive ability, and physiological limitations of each wasp species. These factors should be incorporated into risk analysis for biological control introductions and invasive species programs. JF - Journal of Insect Conservation AU - Oboyski, Peter T AU - Slotterback, John W AU - Banko, Paul C AD - USGS Pacific Island Ecosystems Research Center, Kilauea Field Station, P.O. Box 44, 96718, Hawai'i National Park, Hawai'i, poboyski@nature.berkeley.edu Y1 - 2004/06// PY - 2004 DA - Jun 2004 SP - 229 EP - 241 PB - Springer-Verlag (Heidelberg), Tiergartenstrasse 17 Heidelberg 69121 Germany, [mailto:subscriptions@springer.de], [URL:http://www.springer.de/] VL - 8 IS - 2-3 SN - 1366-638X, 1366-638X KW - Ecology Abstracts; Entomology Abstracts KW - Biological control KW - Eupelmidae KW - Forests KW - Parasitism KW - Eulophidae KW - Lepidoptera KW - Islands KW - Cydia KW - Phylogeny KW - Immigrants KW - Ichneumonidae KW - Diadegma KW - Tortricidae KW - Sophora KW - Conservation KW - Parasitoids KW - Z 05205:Populations & general ecology KW - D 04705:Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17870521?accountid=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=Differential+parasitism+of+seed-feeding+Cydia+%28Lepidoptera%3A+Tortricidae%29+by+native+and+alien+wasp+species+relative+to+elevation+in+subalpine+Sophora+%28Fabaceae%29+forests+on+Mauna+Kea%2C+Hawaii&rft.au=Oboyski%2C+Peter+T%3BSlotterback%2C+John+W%3BBanko%2C+Paul+C&rft.aulast=Oboyski&rft.aufirst=Peter&rft.date=2004-06-01&rft.volume=8&rft.issue=2-3&rft.spage=229&rft.isbn=&rft.btitle=&rft.title=Journal+of+Insect+Conservation&rft.issn=1366638X&rft_id=info:doi/10.1007%2Fs10841-004-1356-x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Ichneumonidae; Lepidoptera; Cydia; Sophora; Tortricidae; Eulophidae; Eupelmidae; Diadegma; Parasitism; Biological control; Conservation; Islands; Parasitoids; Immigrants; Forests; Phylogeny DO - http://dx.doi.org/10.1007/s10841-004-1356-x ER - TY - JOUR T1 - Implications of hydrologic variability on the succession of plants in Great Lakes wetlands AN - 17694104; 6027883 AB - Primary succession of plant communities directed toward a climax is not a typical occurrence in wetlands because these ecological systems are inherently dependent on hydrology, and temporal hydrologic variability often causes reversals or setbacks in succession. Wetlands of the Great Lakes provide good examples for demonstrating the implications of hydrology in driving successional processes and for illustrating potential misinterpretations of apparent successional sequences. Most Great Lakes coastal wetlands follow cyclic patterns in which emergent communities are reduced in area or eliminated by high lake levels and then regenerated from the seed bank during low lake levels. Thus, succession never proceeds for long. Wetlands also develop in ridge and swale terrains in many large embayments of the Great Lakes. These formations contain sequences of wetlands of similar origin but different age that can be several thousand years old, with older wetlands always further from the lake. Analyses of plant communities across a sequence of wetlands at the south end of Lake Michigan showed an apparent successional pattern from submersed to floating to emergent plants as water depth decreased with wetland age. However, paleoecological analyses showed that the observed vegetation changes were driven largely by disturbances associated with increased human settlement in the area. Climate-induced hydrologic changes were also shown to have greater effects on plant-community change than autogenic processes. Other terms, such as zonation, maturation, fluctuations, continuum concept, functional guilds, centrifugal organization, pulse stability, and hump-back models provide additional means of describing organization and changes in vegetation; some of them overlap with succession in describing vegetation processes in Great Lakes wetlands, but each must be used in the proper context with regard to short- and long-term hydrologic variability. JF - Aquatic Ecosystem Health & Management AU - Wilcox, DA AD - U.S. Geological Survey-Great Lakes Science Center, 1451 Green Road, Ann Arbor, MI 48105, USA, douglas_wilcox@usgs.gov Y1 - 2004/06// PY - 2004 DA - Jun 2004 SP - 223 EP - 231 VL - 7 IS - 2 SN - 1463-4988, 1463-4988 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts KW - Biological settlement KW - Climatic changes KW - Freshwater KW - Succession KW - Water levels KW - Lakes KW - Aquatic Plants KW - Hydrologic Models KW - Ecological succession KW - Water Depth KW - Hydrology KW - Wetlands KW - Settling behavior KW - Seeds KW - Palaeoecology KW - Environmental impact KW - Paleoecology KW - Settling behaviour KW - Palaeoclimate KW - Ecosystem disturbance KW - Plant Populations KW - USA, Michigan L. KW - Sexual maturity KW - D 04700:Management KW - Q1 08482:Ecosystems and energetics KW - SW 0860:Water and plants 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/17694104?accountid=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=Implications+of+hydrologic+variability+on+the+succession+of+plants+in+Great+Lakes+wetlands&rft.au=Wilcox%2C+DA&rft.aulast=Wilcox&rft.aufirst=DA&rft.date=2004-06-01&rft.volume=7&rft.issue=2&rft.spage=223&rft.isbn=&rft.btitle=&rft.title=Aquatic+Ecosystem+Health+%26+Management&rft.issn=14634988&rft_id=info:doi/10.1080%2F14634980490461579 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Seeds; Biological settlement; Palaeoecology; Climatic changes; Environmental impact; Palaeoclimate; Settling behaviour; Ecosystem disturbance; Water levels; Ecological succession; Sexual maturity; Hydrology; Wetlands; Paleoecology; Settling behavior; Plant Populations; Lakes; Hydrologic Models; Aquatic Plants; Water Depth; Succession; USA, Michigan L.; Freshwater DO - http://dx.doi.org/10.1080/14634980490461579 ER - TY - JOUR T1 - Floodtide pulses after low tides in shallow subembayments adjacent to deep channels AN - 17596771; 5953668 AB - In shallow waters surface gravity waves (tides) propagate with a speed proportional to the square root of water depth (c=g(h+ eta )). As the ratio of free surface displacement to mean depth ( eta /h) approaches unity the wave will travel noticeably faster at high tide than at low tide, creating asymmetries in the tidal form. This physical process is explained analytically by the increased significance of friction and the nonlinear terms in the continuity and momentum equations. In a tidal system comprising a shallow bay adjacent to a deeper channel, tidal asymmetries will be more prevalent in the shallow bay. Thus strong barotropic gradients can be generated between the two, producing rapid accelerations of currents into the bay (relative to other bay tidal processes) and create a maximum peak in the flood tide that we describe as a floodtide pulse. These floodtide pulses can promote a landward flux of suspended-sediment into the bay. In Grizzly Bay (part of northern San Francisco Bay, USA), field observations verify the occurrence of floodtide pulses during the lowest low tides of the year. No pulses were observed in neighboring Honker Bay, which has an average depth similar to 30cm greater than Grizzly Bay. Numerical simulations of northern San Francisco Bay using realistic bathymetry demonstrated that floodtide pulses occurred in Grizzly Bay but not in Honker Bay, consistent with the observations. Both observations and numerical simulations show that floodtide pulses promote a landward flux of sediment into Grizzly Bay. Numerical simulations of an idealized bay-channel system quantify the importance of mean depth and friction in creating these floodtide pulses. JF - Estuarine, Coastal and Shelf Science AU - Warner, J C AU - Schoellhamer, D H AU - Ruhl, CA AU - Burau, J R AD - U.S. Geological Survey, Coastal and Marine Geology Team, 384 Woods Hole Road, Woods Hole, MA 02543-1598, USA, jcwarner@usgs.gov Y1 - 2004/06// PY - 2004 DA - Jun 2004 SP - 213 EP - 228 PB - Elsevier Ltd VL - 60 IS - 2 SN - 0272-7714, 0272-7714 KW - Flood tide KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; Oceanic Abstracts; Aqualine Abstracts KW - AQ 00001:Water Resources and Supplies KW - M2 556.53:Rivers, Streams, Canals (556.53) KW - O 2010:Physical Oceanography KW - Q2 02170:Nearshore dynamics KW - SW 0870:Erosion and sedimentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17596771?accountid=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=Floodtide+pulses+after+low+tides+in+shallow+subembayments+adjacent+to+deep+channels&rft.au=Warner%2C+J+C%3BSchoellhamer%2C+D+H%3BRuhl%2C+CA%3BBurau%2C+J+R&rft.aulast=Warner&rft.aufirst=J&rft.date=2004-06-01&rft.volume=60&rft.issue=2&rft.spage=213&rft.isbn=&rft.btitle=&rft.title=Estuarine%2C+Coastal+and+Shelf+Science&rft.issn=02727714&rft_id=info:doi/10.1016%2Fj.ecss.2003.12.011 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-04-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1016/j.ecss.2003.12.011 ER - TY - JOUR T1 - Terrestrial Microorganisms at an Altitude of 20,000 m in Earth's Atmosphere AN - 17532501; 6023989 AB - A joint effort between the U.S. Geological Survey's (USGS) Global Desert Dust and NASA's Stratospheric and Cosmic Dust Programs identified culturable microbes from an air sample collected at an altitude of 20,000 m. A total of 4 fungal (Penicillium sp.) and 71 bacteria colony-forming units (70 colonies of Bacillus luciferensis believed to have originated from a single cell collected at altitude and one colony of Bacillus sphaericus) were enumerated, isolated and identified using a morphological key and 16S rDNA sequencing respectively. All of the isolates identified were spore-forming pigmented fungi or bacteria of terrestrial origin and demonstrate that the presence of viable microorganisms in Earth's upper atmosphere may not be uncommon. JF - Aerobiologia AU - Griffin, D W AD - United States Geological Survey, Center for Coastal and Watershed Studies, 600 4th St. South, St. Petersburg, FL 33701, USA, dgriffin@usgs.gov Y1 - 2004/06// PY - 2004 DA - Jun 2004 SP - 135 EP - 140 PB - Kluwer Academic Publishers VL - 20 IS - 2 SN - 0393-5965, 0393-5965 KW - Meteorological & Geoastrophysical Abstracts; Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - USA KW - Altitude KW - Earth's atmosphere KW - Penicillium KW - Bacillus sphaericus KW - Viability KW - Bacteria content of air KW - Enumeration KW - Atmosphere KW - rRNA 16S KW - Bacillus luciferensis KW - J 02908:Air KW - A 01103:General KW - M2 551.556.4:Transport of foreign bodies (pollutants) by wind (wind erosion) (551.556.4) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17532501?accountid=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=Aerobiologia&rft.atitle=Terrestrial+Microorganisms+at+an+Altitude+of+20%2C000+m+in+Earth%27s+Atmosphere&rft.au=Griffin%2C+D+W&rft.aulast=Griffin&rft.aufirst=D&rft.date=2004-06-01&rft.volume=20&rft.issue=2&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Aerobiologia&rft.issn=03935965&rft_id=info:doi/10.1023%2FB%3AAERO.0000032948.84077.12 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Altitude; Viability; Enumeration; rRNA 16S; Atmosphere; Earth's atmosphere; Bacteria content of air; Penicillium; Bacillus sphaericus; Bacillus luciferensis; USA DO - http://dx.doi.org/10.1023/B:AERO.0000032948.84077.12 ER - TY - JOUR T1 - Gasoline-Related Organics in Lake Tahoe Before and After Prohibition of Carbureted Two-Stroke Engines AN - 17287093; 5981551 AB - On June 1, 1999, carbureted two-stroke engines were banned on waters within the Lake Tahoe Basin of California and Nevada. The main gasoline components MTBE (methyl tert-butyl ether) and BTEX (benzene, toluene, ethylbenzene, and xylenes) were present at detectable concentrations in all samples taken from Lake Tahoe during 1997-98 prior to the ban. Samples taken from 1999 through 2001 after the ban contained between 10 and 60 percent of the pre-ban concentrations of these compounds, with MTBE exhibiting the most dramatic change (a 90 percent decrease). MTBE and BTEX concentrations in water samples from Lake Tahoe and Lower Echo Lake were related to the amount of boat use at the sampling sites. Polycyclic aromatic hydrocarbon (PAH) compounds are produced by high-temperature pyrolytic reactions. They were sampled using semipermeable membrane sampling devices in Lake Tahoe and nearby Donner Lake, where carbureted two-stroke engines are legal. PAHs were detected in all samples taken from Lake Tahoe and Donner Lake. The number of PAH compounds and their concentrations are related to boat use. The highest concentrations of PAH were detected in samples from two heavily used boating areas, Tahoe Keys Marina and Donner Lake boat ramp. Other sources of PAH, such as atmospheric deposition, wood smoke, tributary streams, and automobile exhaust do not contribute large amounts of PAH to Lake Tahoe. Similar numbers of PAH compounds and concentrations were found in Lake Tahoe before and after the ban of carbureted two-stroke engines. JF - Lake and Reservoir Management AU - Lico AD - United States Geological Survey, 333 West Nye Lane, Carson City, NV 89706, USA Y1 - 2004/06// PY - 2004 DA - Jun 2004 SP - 164 EP - 174 VL - 20 IS - 2 SN - 1040-2381, 1040-2381 KW - BETX KW - Carbureted 2-stoke engine KW - Fuel additives KW - MBTE KW - Pollution Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Semipermeable Membranes KW - Benzenes KW - Water reservoirs KW - Gasoline KW - MTBE KW - Toluene KW - Boating KW - Basins KW - Man-induced effects KW - Freshwater KW - Water analysis KW - Benzene KW - Lakes KW - Recreational waters KW - Aromatic hydrocarbons KW - Lake Basins KW - Ethers KW - Tributaries KW - Reservoirs KW - USA, Tahoe L. basin KW - USA, California, Donner L. KW - Wood KW - Hardwood KW - Water use KW - USA, California, Lower Echo L. KW - USA, Tahoe L. KW - Chemical analysis KW - Water sampling KW - Port installations KW - USA, Nevada KW - Pollution legislation KW - Streams KW - Boats KW - Pollutant persistence KW - Volatile compounds KW - USA, California, Tahoe L. KW - USA, Nevada, Tahoe L. KW - Sampling KW - Polycyclic aromatic hydrocarbons KW - Pollution detection KW - Marinas KW - Motors KW - Reservoir Management KW - Deposition KW - Automotive exhaust emissions KW - Organic compounds KW - Pollution control KW - Q5 08503:Characteristics, behavior and fate KW - P 0000:AIR POLLUTION KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17287093?accountid=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=Lake+and+Reservoir+Management&rft.atitle=Gasoline-Related+Organics+in+Lake+Tahoe+Before+and+After+Prohibition+of+Carbureted+Two-Stroke+Engines&rft.au=Lico&rft.aulast=Lico&rft.aufirst=&rft.date=2004-06-01&rft.volume=20&rft.issue=2&rft.spage=164&rft.isbn=&rft.btitle=&rft.title=Lake+and+Reservoir+Management&rft.issn=10402381&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-02-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Pollution detection; Water reservoirs; Boating; Marinas; Man-induced effects; Port installations; Pollution legislation; Water analysis; Motors; Water use; Lakes; Pollutant persistence; Volatile compounds; Recreational waters; Aromatic hydrocarbons; Organic compounds; Chemical analysis; Pollution control; Water sampling; Gasoline; Toluene; MTBE; Wood; Basins; Ethers; Automotive exhaust emissions; Reservoirs; Streams; Benzene; Semipermeable Membranes; Benzenes; Polycyclic aromatic hydrocarbons; Hardwood; Reservoir Management; Boats; Deposition; Sampling; Lake Basins; Tributaries; USA, Tahoe L. basin; USA, California, Lower Echo L.; USA, California, Donner L.; USA, Nevada, Tahoe L.; USA, California, Tahoe L.; USA, Tahoe L.; USA, Nevada; Freshwater ER - TY - JOUR T1 - Characterization of Aerosolized Bacteria and Fungi From Desert Dust Events in Mali, West Africa AN - 16177806; 6023995 AB - Millions of metric tons of African desert dust blow across the Atlantic Ocean each year, blanketing the Caribbean and southeastern United States. Previous work in the Caribbean has shown that atmospheric samples collected during dust events contain living microbes, including plant and opportunistic human pathogens. To better understand the potential downwind public health and ecosystem effects of the dust microbes, it is important to characterize the source population. We describe 19 genera of bacteria and 3 genera of fungi isolated from air samples collected in Mali, a known source region for dust storms, and over which large dust storms travel. JF - Aerobiologia AU - Kellogg, CA AU - Griffin, D W AU - Garrison, V H AU - Peak, K K AU - Royall, N AU - Smith, R R AU - Shinn, E A AD - U.S. Geological Survey, 600 4th Street S., St Petersburg, FL 33701, USA, ckellogg@usgs.gov Y1 - 2004/06// PY - 2004 DA - Jun 2004 SP - 99 EP - 110 PB - Kluwer Academic Publishers VL - 20 IS - 2 SN - 0393-5965, 0393-5965 KW - Meteorological & Geoastrophysical Abstracts; Health & Safety Science Abstracts; Pollution Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology; Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Mali KW - Ecosystems KW - Pollution dispersion KW - Airborne microorganisms KW - Aerosol formation KW - USA, Southeast KW - Storms KW - Dust KW - Public health KW - ASW, Caribbean Sea KW - Trans-boundary pollution KW - Wind KW - Bacteria KW - Dust storms KW - Fungi KW - Pathogens KW - A, Atlantic KW - Air pollution KW - Deserts KW - Bacteria content of air KW - Caribbean Sea KW - J 02908:Air KW - H 3000:Environment and Ecology KW - P 0000:AIR POLLUTION KW - M2 551.555:Specific Locations (551.555) KW - A 01103:General KW - K 03060:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16177806?accountid=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=Aerobiologia&rft.atitle=Characterization+of+Aerosolized+Bacteria+and+Fungi+From+Desert+Dust+Events+in+Mali%2C+West+Africa&rft.au=Kellogg%2C+CA%3BGriffin%2C+D+W%3BGarrison%2C+V+H%3BPeak%2C+K+K%3BRoyall%2C+N%3BSmith%2C+R+R%3BShinn%2C+E+A&rft.aulast=Kellogg&rft.aufirst=CA&rft.date=2004-06-01&rft.volume=27&rft.issue=5&rft.spage=882&rft.isbn=&rft.btitle=&rft.title=Estuaries&rft.issn=01608347&rft_id=info:doi/10.1007%2FBF02912049 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-08-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Air pollution; Ecosystems; Trans-boundary pollution; Pollution dispersion; Dust; Public health; Dust storms; Aerosol formation; Bacteria content of air; Bacteria; Fungi; Airborne microorganisms; Pathogens; Storms; Deserts; Wind; Mali; ASW, Caribbean Sea; USA, Southeast; Caribbean Sea; A, Atlantic DO - http://dx.doi.org/10.1023/B:AERO.0000032947.88335.bb ER - TY - JOUR T1 - Trace metal records of regional paleoenvironmental variability in Pennsylvanian (Upper Carboniferous) black shales AN - 16177101; 5903577 AB - Regional geochemical differences within a laterally continuous, cyclic Pennsylvanian (Upper Carboniferous) shale in midcontinent North America are interpreted in light of models of glacioeustatic forcing and new views on water- column paleoredox stability and trace-metal behavior in black shale environments. Specifically, we characterize differences in transition metal (Fe, Mn, Mo, V, Ni, Zn, Pb and U) concentrations in black shales of the Hushpuckney Shale Member of the Swope Limestone in Iowa and equivalent black shale beds of the Coffeyville Formation in Oklahoma. Although C-S-Fe systematics and uniform super(34)S-depleted isotope ratios of pyrite indicate pervasive euxinic deposition (anoxic and sulfidic bottom waters) for these shales, regional variations can be inferred for the efficiency of Mo scavenging and for the rates of siliciclastic sedimentation as expressed in spatially varying Fe/Al ratios. Black shales in Iowa show Mo enrichment roughly five times greater than that observed in coeval euxinic shales in Oklahoma. By contrast, Fe/Al ratios in Oklahoma shales are as much as five times greater than the continental ratio of 0.5 observed in the over- and underlying oxic facies and in the coeval black shales in Iowa. Recent work in modern marine settings has shown that enrichments in Fe commonly result from scavenging in a euxinic water column during syngenetic pyrite formation. In contrast to Fe, the concentrations of other transition metals (Mo, V, Ni, Pb, Zn, U) are typically more enriched in the black shales in Iowa relative to Oklahoma. The transition metal trends in these Paleozoic shales are reasonably interpreted in terms of early fixation in organic-rich sediments due to euxinic water-column conditions. However, regional variations in (1) rates of siliciclastic input, (2) organic reservoirs, including relative inputs of terrestrial versus marine organic matter, and (3) additional inputs of metals to bottom waters from contemporaneous hydrothermal vents are additional key controls that lead to geographic variation in the extent of metal enrichments preserved in ancient organic-rich sediments. JF - Chemical Geology AU - Cruse, A M AU - Lyons, T W AD - U.S. Geological Survey, P.O. Box 25046, MS977, DFC, Denver, CO 80225, USA, acruse@usgs.gov Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 319 EP - 345 PB - Elsevier Science Ltd., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:usinfo-f@elsevier.com] VL - 206 IS - 3-4 SN - 0009-2541, 0009-2541 KW - shale KW - Pollution Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Trace metals KW - Iron KW - Molybdenum KW - Sulfur KW - Hydrothermal KW - North America KW - Bottom water KW - Heavy metals KW - Palaeo studies KW - Geochemistry KW - Carboniferous KW - Palaeoenvironments KW - Sedimentary environments KW - Pyrite KW - Sedimentary rocks KW - Geology KW - Shale KW - Sedimentation KW - Regional variations KW - Q2 09272:Petrology and chemistry of rocks KW - P 5000:LAND POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16177101?accountid=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=Chemical+Geology&rft.atitle=Trace+metal+records+of+regional+paleoenvironmental+variability+in+Pennsylvanian+%28Upper+Carboniferous%29+black+shales&rft.au=Cruse%2C+A+M%3BLyons%2C+T+W&rft.aulast=Cruse&rft.aufirst=A&rft.date=2004-06-01&rft.volume=206&rft.issue=3-4&rft.spage=319&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2Fj.chemgeo.2003.12.010 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-12-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Bottom water; Palaeo studies; Heavy metals; Sedimentary rocks; Palaeoenvironments; Carboniferous; Sedimentary environments; Sedimentation; Pyrite; Shale; Regional variations; Geochemistry; Geology; Trace metals; North America DO - http://dx.doi.org/10.1016/j.chemgeo.2003.12.010 ER - TY - JOUR T1 - Use of Stream Chemistry for Monitoring Acidic Deposition Effects in the Adirondack Region of New York AN - 16176132; 5987036 AB - Acid-neutralizing capacity (ANC) and pH were measured weekly from October 1991 through September 2001 in three streams in the western Adirondack Mountain region of New York to identify trends in stream chemistry that might be related to changes in acidic deposition. A decreasing trend in atmospheric deposition of SO super(2) sub(4) super(-) was observed within the region over the 10-yr period, although most of the decrease occurred between 1991 and 1995. Both ANC and pH were inversely related to flow in all streams; therefore, a trend analysis was conducted on (i) the measured values of ANC and pH and (ii) the residuals of the concentration-discharge relations. In Buck Creek, ANC increased significantly (p 0.10). In Bald Mountain Brook, ANC and residuals of ANC increased significantly (p < 0.01), although the trend was diatonic--a distinct decrease from 1991 to 1996 was followed by a distinct increase from 1996 to 2001. In Fly Pond outlet, ANC and residuals of ANC increased over the study period (p < 0.01), although the trend of the residuals resulted largely from an abrupt increase in 1997. In general, the trends observed in the three streams are similar to results presented for Adirondack lakes in a previous study, and are consistent with the declining trend in atmospheric deposition for this region, although the observed trends in ANC and pH in streams could not be directly attributed to the trends in acidic deposition. JF - Journal of Environmental Quality AU - Lawrence, G B AU - Momen, B AU - Roy, K M AD - U.S. Geological Survey, 425 Jordan Road, Troy, NY 12180, USA, glawrenc@usgs.gov Y1 - 2004/06// PY - 2004 DA - Jun 2004 SP - 1002 EP - 1009 VL - 33 IS - 3 SN - 0047-2425, 0047-2425 KW - Aqualine Abstracts; Water Resources Abstracts; Pollution Abstracts KW - Pollution monitoring KW - Outlets KW - Environmental Quality KW - Streams KW - Ponds KW - Mountains KW - Lakes KW - USA, New York, Adirondack Mts. KW - Acidity KW - pH KW - Acid deposition KW - Hydrogen Ion Concentration KW - Pollutant deposition KW - Deposition KW - Environmental quality KW - Capacity KW - Monitoring KW - SW 0880:Chemical processes KW - P 2000:FRESHWATER POLLUTION KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16176132?accountid=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=Use+of+Stream+Chemistry+for+Monitoring+Acidic+Deposition+Effects+in+the+Adirondack+Region+of+New+York&rft.au=Lawrence%2C+G+B%3BMomen%2C+B%3BRoy%2C+K+M&rft.aulast=Lawrence&rft.aufirst=G&rft.date=2004-06-01&rft.volume=33&rft.issue=3&rft.spage=1002&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 - 2005-01-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Mountains; Pollution monitoring; Lakes; Pollutant deposition; Environmental quality; Streams; Acid deposition; Ponds; pH; Outlets; Environmental Quality; Hydrogen Ion Concentration; Deposition; Capacity; Acidity; Monitoring; USA, New York, Adirondack Mts. ER - TY - CPAPER T1 - From research to remediation: Applications of hydrogeochemical research for effective mine site remediation AN - 39915891; 3848709 AU - Nordstrom, D Y1 - 2004/05/20/ PY - 2004 DA - 2004 May 20 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39915891?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=From+research+to+remediation%3A+Applications+of+hydrogeochemical+research+for+effective+mine+site+remediation&rft.au=Nordstrom%2C+D&rft.aulast=Nordstrom&rft.aufirst=D&rft.date=2004-05-20&rft.volume=&rft.issue=&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 for Environmental Health & Science, 150 Fearing St., Amherst, MA 01002, USA; phone: +1 413 549 5170; fax: +1 413 549 0579; URL: www.aehs.com N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Nationwide inventory and assessment of 20th century topographic surface change AN - 39893709; 3851689 AU - Gesch, D Y1 - 2004/05/20/ PY - 2004 DA - 2004 May 20 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39893709?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Nationwide+inventory+and+assessment+of+20th+century+topographic+surface+change&rft.au=Gesch%2C+D&rft.aulast=Gesch&rft.aufirst=D&rft.date=2004-05-20&rft.volume=&rft.issue=&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 Association of Geographers, 1710 Sixteenth Street NW, Washington, DC 20009-3198, USA; phone: 202-234-1450; fax: 202-234-2744; URL: www.aag.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Habitat vulnerability of neotenic salamanders in springs flowing from the trinity aquifer in south-central Texas AN - 39893015; 3849216 AU - Heitmuller, F Y1 - 2004/05/20/ PY - 2004 DA - 2004 May 20 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39893015?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+vulnerability+of+neotenic+salamanders+in+springs+flowing+from+the+trinity+aquifer+in+south-central+Texas&rft.au=Heitmuller%2C+F&rft.aulast=Heitmuller&rft.aufirst=F&rft.date=2004-05-20&rft.volume=&rft.issue=&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 Association of Geographers, 1710 Sixteenth Street NW, Washington, DC 20009-3198, USA; phone: 202-234-1450; fax: 202-234-2744; URL: www.aag.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Urban land cover change detection through sub-pixel imperviousness mapping AN - 39883830; 3855520 AU - Yang, L Y1 - 2004/05/20/ PY - 2004 DA - 2004 May 20 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39883830?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+land+cover+change+detection+through+sub-pixel+imperviousness+mapping&rft.au=Yang%2C+L&rft.aulast=Yang&rft.aufirst=L&rft.date=2004-05-20&rft.volume=&rft.issue=&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 Association of Geographers, 1710 Sixteenth Street NW, Washington, DC 20009-3198, USA; phone: 202-234-1450; fax: 202-234-2744; URL: www.aag.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - National map: Success stories and challenges in assembling the nation's topographic map for the 21st century AN - 39853329; 3851684 AU - Ogrosky, C Y1 - 2004/05/20/ PY - 2004 DA - 2004 May 20 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39853329?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+map%3A+Success+stories+and+challenges+in+assembling+the+nation%27s+topographic+map+for+the+21st+century&rft.au=Ogrosky%2C+C&rft.aulast=Ogrosky&rft.aufirst=C&rft.date=2004-05-20&rft.volume=&rft.issue=&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 Association of Geographers, 1710 Sixteenth Street NW, Washington, DC 20009-3198, USA; phone: 202-234-1450; fax: 202-234-2744; URL: www.aag.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Monitoring and forecasting drought in southern Africa during the 2002-2003 season AN - 39846258; 3851497 AU - Verdin, J Y1 - 2004/05/20/ PY - 2004 DA - 2004 May 20 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39846258?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+and+forecasting+drought+in+southern+Africa+during+the+2002-2003+season&rft.au=Verdin%2C+J&rft.aulast=Verdin&rft.aufirst=J&rft.date=2004-05-20&rft.volume=&rft.issue=&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 Association of Geographers, 1710 Sixteenth Street NW, Washington, DC 20009-3198, USA; phone: 202-234-1450; fax: 202-234-2744; URL: www.aag.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Application of multiple spectral and spatial scales of remote sensing data to desert piedmonts AN - 39844804; 3845297 AU - Robinson, S Y1 - 2004/05/20/ PY - 2004 DA - 2004 May 20 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39844804?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+multiple+spectral+and+spatial+scales+of+remote+sensing+data+to+desert+piedmonts&rft.au=Robinson%2C+S&rft.aulast=Robinson&rft.aufirst=S&rft.date=2004-05-20&rft.volume=&rft.issue=&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 Association of Geographers, 1710 Sixteenth Street NW, Washington, DC 20009-3198, USA; phone: 202-234-1450; fax: 202-234-2744; URL: www.aag.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Comparison of approaches for verifying southwestern regional gap vertebrate habitat distribution models AN - 39844003; 3846488 AU - Wynne, J J AU - Drost, CA AU - Thomas, KA Y1 - 2004/05/20/ PY - 2004 DA - 2004 May 20 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39844003?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+approaches+for+verifying+southwestern+regional+gap+vertebrate+habitat+distribution+models&rft.au=Wynne%2C+J+J%3BDrost%2C+CA%3BThomas%2C+KA&rft.aulast=Wynne&rft.aufirst=J&rft.date=2004-05-20&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: US Regional Association of the International Association for Landscape Ecology, URL: www.usiale.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Concentrations of elements within individual tree rings: Does an historical signal persist? AN - 39841800; 3846610 AU - Yanosky, T Y1 - 2004/05/20/ PY - 2004 DA - 2004 May 20 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39841800?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+individual+tree+rings%3A+Does+an+historical+signal+persist%3F&rft.au=Kinner%2C+David+A%3BStallard%2C+Robert+F&rft.aulast=Kinner&rft.aufirst=David&rft.date=2004-10-01&rft.volume=18&rft.issue=15&rft.spage=2851&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=08856087&rft_id=info:doi/10.1002%2Fhyp.1498 LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: American Association of Geographers, 1710 Sixteenth Street NW, Washington, DC 20009-3198, USA; phone: 202-234-1450; fax: 202-234-2744; URL: www.aag.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Vegetation dynamics in a recovering landscape: The role of land use history, environmental gradients, and natural disturbance in structuring plant communities in Shenandoah National Park AN - 39841710; 3855797 AU - Young, J Y1 - 2004/05/20/ PY - 2004 DA - 2004 May 20 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39841710?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+dynamics+in+a+recovering+landscape%3A+The+role+of+land+use+history%2C+environmental+gradients%2C+and+natural+disturbance+in+structuring+plant+communities+in+Shenandoah+National+Park&rft.au=Young%2C+J&rft.aulast=Young&rft.aufirst=J&rft.date=2004-05-20&rft.volume=&rft.issue=&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 Association of Geographers, 1710 Sixteenth Street NW, Washington, DC 20009-3198, USA; phone: 202-234-1450; fax: 202-234-2744; URL: www.aag.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Snapshots in critical cartography; history, theory, and evidence AN - 39836941; 3854302 AU - Varanka, D Y1 - 2004/05/20/ PY - 2004 DA - 2004 May 20 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39836941?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Snapshots+in+critical+cartography%3B+history%2C+theory%2C+and+evidence&rft.au=Varanka%2C+D&rft.aulast=Varanka&rft.aufirst=D&rft.date=2004-05-20&rft.volume=&rft.issue=&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 Association of Geographers, 1710 Sixteenth Street NW, Washington, DC 20009-3198, USA; phone: 202-234-1450; fax: 202-234-2744; URL: www.aag.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Expanding role of geoscience in foreign policy AN - 39833766; 3848332 AU - Kelmelis, J Y1 - 2004/05/20/ PY - 2004 DA - 2004 May 20 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39833766?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Expanding+role+of+geoscience+in+foreign+policy&rft.au=Kelmelis%2C+J&rft.aulast=Kelmelis&rft.aufirst=J&rft.date=2004-05-20&rft.volume=&rft.issue=&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 Association of Geographers, 1710 Sixteenth Street NW, Washington, DC 20009-3198, USA; phone: 202-234-1450; fax: 202-234-2744; URL: www.aag.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Southwest regional gap analysis project: An overview of project goals and organization AN - 39820115; 3854405 AU - Prior-Magee, J Y1 - 2004/05/20/ PY - 2004 DA - 2004 May 20 KW - CPI, Conference Papers Index KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39820115?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Southwest+regional+gap+analysis+project%3A+An+overview+of+project+goals+and+organization&rft.au=Prior-Magee%2C+J&rft.aulast=Prior-Magee&rft.aufirst=J&rft.date=2004-05-20&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: US Regional Association of the International Association for Landscape Ecology, URL: www.usiale.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Hydrologic considerations of isolated wetlands AN - 39819915; 3849594 AU - Winter, T Y1 - 2004/05/20/ PY - 2004 DA - 2004 May 20 KW - CPI, Conference Papers Index KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39819915?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+considerations+of+isolated+wetlands&rft.au=Winter%2C+T&rft.aulast=Winter&rft.aufirst=T&rft.date=2004-05-20&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Availability: Conservation Information Technology Center, 1220 Potter Dr Ste, 170 W Lafayette, IN 47906, USA; phone: 765-494-9555; fax: 765-494-5969; URL: www.ctic.purdue.edu/CTIC/CTIC.html N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Global GIS: Geography lessons for the world AN - 39810739; 3849040 AU - Kerski, J Y1 - 2004/05/20/ PY - 2004 DA - 2004 May 20 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39810739?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+GIS%3A+Geography+lessons+for+the+world&rft.au=Kerski%2C+J&rft.aulast=Kerski&rft.aufirst=J&rft.date=2004-05-20&rft.volume=&rft.issue=&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 Association of Geographers, 1710 Sixteenth Street NW, Washington, DC 20009-3198, USA; phone: 202-234-1450; fax: 202-234-2744; URL: www.aag.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Using ecoregions to analyze land cover change AN - 39806017; 3855668 AU - Loveland, T Y1 - 2004/05/20/ PY - 2004 DA - 2004 May 20 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39806017?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc: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+ecoregions+to+analyze+land+cover+change&rft.au=Loveland%2C+T&rft.aulast=Loveland&rft.aufirst=T&rft.date=2004-05-20&rft.volume=&rft.issue=&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 Association of Geographers, 1710 Sixteenth Street NW, Washington, DC 20009-3198, USA; phone: 202-234-1450; fax: 202-234-2744; URL: www.aag.org N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Toward a scientifically rigorous basis for developing mapped ecological regions AN - 39800966; 3855175 AU - McMahon, G Y1 - 2004/05/20/ PY - 2004 DA - 2004 May 20 KW - CPI, Conference Papers Index KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39800966?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=&rft.atitle=Toward+a+scientifically+rigorous+basis+for+developing+mapped+ecological+regions&rft.au=McMahon%2C+G&rft.aulast=McMahon&rft.aufirst=G&rft.date=2004-05-20&rft.volume=&rft.issue=&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 Association of Geographers, 1710 Sixteenth Street NW, Washington, DC 20009-3198, USA; phone: 202-234-1450; fax: 202-234-2744; URL: www.aag.org N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Economic and Health Risk Trade-Offs of Swim Closures at a Lake Michigan Beach AN - 20547897; 5955535 AB - This paper presents a framework for analyzing the economic, health, and recreation implications of swim closures related to high fecal indicator bacteria (FIB) levels. The framework utilizes benefit transfer policy analysis to provide a practical procedure for estimating the effectiveness of recreational water quality policies. Evaluation criteria include the rates of intended and unintended management outcomes, whether the chosen protocols generate closures with positive net economic benefits to swimmers, and the number of predicted illnesses the policy is able to prevent. We demonstrate the framework through a case study of a Lake Michigan freshwater beach using existing water quality and visitor data from 1998 to 2001. We find that a typical closure causes a net economic loss among would-be swimmers totaling $1274-37,030/day, depending on the value assumptions used. Unnecessary closures, caused by high indicator variability and a 24-h time delay between when samples are taken and the management decision can be made, occurred on 14 (12%) out of 118 monitored summer days. Days with high FIB levels when the swim area is open are also common but do relatively little economic harm in comparison. Also, even if the closure policy could be implemented daily and perfectly without error, only about 42% of predicted illnesses would be avoided. These conclusions were sensitive to the relative values and risk preferences that swimmers have for recreation access and avoiding health effects, suggesting a need for further study of the impacts of recreational water quality policies on individuals. JF - Environmental Science & Technology AU - Rabinovici, SJM AU - Bernknopf, R L AU - Wein, A M AU - Coursey, D L AU - Whitman, R L AD - U.S. Geological Survey, Western Geographic Science Center, 345 Middlefield Road MS 531, Menlo Park, CA 94025, USA, srabinovici@usgs.gov Y1 - 2004/05/15/ PY - 2004 DA - 2004 May 15 SP - 2737 EP - 2745 VL - 38 IS - 10 SN - 0013-936X, 0013-936X KW - Risk Abstracts; Health & Safety Science Abstracts; Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Environmental health KW - Freshwater KW - Water quality KW - Risks KW - Disease transmission KW - Public health KW - Lakes KW - Public Health KW - Economics KW - Recreational waters KW - Environmental effects KW - Diseases KW - Bacteria KW - Swimming KW - Beaches KW - Case Studies KW - Water Quality KW - Water quality standards KW - Water pollution KW - Risk KW - USA, Michigan L. KW - Recreation KW - Recreation areas KW - Benefits KW - Economic benefits KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of pollution KW - R2 23060:Medical and environmental health KW - H 12000:Epidemiology and Public Health KW - Q5 08524:Public health, medicines, dangerous organisms KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20547897?accountid=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=Economic+and+Health+Risk+Trade-Offs+of+Swim+Closures+at+a+Lake+Michigan+Beach&rft.au=Rabinovici%2C+SJM%3BBernknopf%2C+R+L%3BWein%2C+A+M%3BCoursey%2C+D+L%3BWhitman%2C+R+L&rft.aulast=Rabinovici&rft.aufirst=SJM&rft.date=2004-05-15&rft.volume=38&rft.issue=10&rft.spage=2737&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes034905z LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-06-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Beaches; Swimming; Recreation; Environmental effects; Recreational waters; Water quality; Economic benefits; Risks; Public health; Disease transmission; Lakes; Recreation areas; Economics; Environmental health; Water quality standards; Water pollution; Bacteria; Risk; Public Health; Case Studies; Water Quality; Diseases; Benefits; USA, Michigan L.; Freshwater DO - http://dx.doi.org/10.1021/es034905z ER - TY - JOUR T1 - Investigation of Differences between Field and Laboratory pH Measurements of National Atmospheric Deposition Program/National Trends Network Precipitation Samples AN - 759318232; 13727063 AB - A study was undertaken to investigate differences between laboratoryand field pH measurements for precipitation samples collected from 135 weekly precipitation-monitoring sites in the National Trends Network from 12/30/1986 to 12/28/1999. Differences in pH between field and laboratory measurements occurred for 96% of samples collected during this time period. Differences between the two measurements were evaluated for precipitation samples collected before and after January 1994, when modifications to sample-handling protocol and elimination of the contaminating bucket o-ring used in sample shipment occurred. Median hydrogen-ion and pH differences between field and laboratory measurements declined from 3. 9 keq L super(-1) or 0. 10 pH units before the 1994 protocol change to 1. 4 keq L super(-1) or 0. 04 pH units after the 1994 protocol change. Hydrogen-ion differences between field and laboratory measurements had a high correlation with the sample pH determined in the field. The largest pH differences between the two measurements occurred for high-pH samples (>5. 6), typical of precipitation collected in Western United States; however low-pH samples (<5. 0) displayed the highest variability in hydrogen-ion differences between field and laboratory analyses. Properly screened field pH measurements are a useful alternative to laboratory pH values for trend analysis, particularly before 1994 when laboratory pH values were influenced by sample-collection equipment. JF - Water, Air, & Soil Pollution AU - Latysh, Natalie AU - Gordon, John AD - U.S. Geological Survey, Denver, CO, U.S.A., nlatysh@usgs.gov Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 249 EP - 270 PB - Springer-Verlag, Tiergartenstrasse 17 Heidelberg 69121 Germany VL - 154 IS - 1-4 SN - 0049-6979, 0049-6979 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Environment Abstracts; Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Variability KW - Rainfall KW - Correlations KW - Networks KW - pH KW - Trend analysis KW - Atmospheric pollution KW - Laboratories KW - Hydrogen Ion Concentration KW - Soil contamination KW - Precipitation KW - Water pollution KW - Soil pollution KW - Air pollution KW - USA KW - Pollutant deposition KW - Deposition KW - Q2 09243:Structure, mechanics and thermodynamics KW - P 0000:AIR POLLUTION KW - SW 3010:Identification of pollutants KW - AQ 00003:Monitoring and Analysis of Water and Wastes KW - M2 551.577:General Precipitation (551.577) KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/759318232?accountid=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=Investigation+of+Differences+between+Field+and+Laboratory+pH+Measurements+of+National+Atmospheric+Deposition+Program%2FNational+Trends+Network+Precipitation+Samples&rft.au=Latysh%2C+Natalie%3BGordon%2C+John&rft.aulast=Latysh&rft.aufirst=Natalie&rft.date=2004-05-01&rft.volume=154&rft.issue=1-4&rft.spage=249&rft.isbn=&rft.btitle=&rft.title=Water%2C+Air%2C+%26+Soil+Pollution&rft.issn=00496979&rft_id=info:doi/10.1023%2FB%3AWATE.0000022971.59349.fc LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-10-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Air pollution; pH; Water pollution; Soil pollution; Atmospheric pollution; Correlations; Precipitation; Trend analysis; Pollutant deposition; Rainfall; Soil contamination; Variability; Laboratories; Networks; Deposition; Hydrogen Ion Concentration; USA DO - http://dx.doi.org/10.1023/B:WATE.0000022971.59349.fc ER - TY - JOUR T1 - Discovery of Sphaeroma terebrans, a wood-boring isopod, in the red mangrove, Rhizophora mangle, habitat of northern Florida Bay. AN - 71941034; 15151389 JF - Ambio AU - Brooks, R Allen AD - BRD/USGS, Gainesville, Florida 32653, USA. allen_brooks@usgs.gov Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 171 EP - 173 VL - 33 IS - 3 SN - 0044-7447, 0044-7447 KW - Index Medicus KW - Environmental Monitoring KW - Animals KW - Plant Roots KW - Population Dynamics KW - Data Collection KW - Rhizophoraceae KW - Isopoda -- pathogenicity KW - Conservation of Natural Resources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71941034?accountid=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=Ambio&rft.atitle=Discovery+of+Sphaeroma+terebrans%2C+a+wood-boring+isopod%2C+in+the+red+mangrove%2C+Rhizophora+mangle%2C+habitat+of+northern+Florida+Bay.&rft.au=Brooks%2C+R+Allen&rft.aulast=Brooks&rft.aufirst=R&rft.date=2004-05-01&rft.volume=33&rft.issue=3&rft.spage=171&rft.isbn=&rft.btitle=&rft.title=Ambio&rft.issn=00447447&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-08-03 N1 - Date created - 2004-05-20 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Role of manganese oxides in the exposure of mute swans (Cygnus olor) to Pb and other elements in the Chesapeake Bay, USA. AN - 71684927; 14987808 AB - The aims of this study are to estimate exposure of waterfowl to elements in contaminated sediments in the Chesapeake Bay and to consider the potential role of Mn in influencing bioavailability and exposure. Metal concentrations were measured in livers and digesta taken from mute swans living on the Aberdeen Proving Ground, whose sediment had elevated concentrations of Cu, S, Se, Zn, As, Co, Cr, Hg and Pb. Concentrations of only the first four of these elements were elevated in swan digesta. None of the concentrations detected in the digesta or livers of the swans was considered toxic, although the concentrations of Cu and Se were high compared to concentrations of these elements reported in other waterfowl. Lead was found to be scavenged by Mn and Fe oxides from the water and deposited on the surface of vegetation at a reference site. Under some environmental chemical conditions, this is an important route of exposure to Pb in waterfowl, not previously recognized. JF - Environmental pollution (Barking, Essex : 1987) AU - Beyer, W Nelson AU - Day, Daniel AD - US Geological Survey, Patuxent Wildlife Research Center, 12011 Beech Forest Rd, Laurel, MD 20708-4041, USA. nelson_beyer@usgs.gov Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 229 EP - 235 VL - 129 IS - 2 SN - 0269-7491, 0269-7491 KW - Manganese Compounds KW - 0 KW - Metals KW - Oxides KW - Lead KW - 2P299V784P KW - manganese oxide KW - 64J2OA7MH3 KW - Index Medicus KW - Gastrointestinal Contents -- chemistry KW - Animals KW - Food Contamination KW - Metals -- chemistry KW - Liver -- chemistry KW - Environmental Monitoring -- methods KW - Metals -- toxicity KW - Lead -- toxicity KW - Manganese Compounds -- chemistry KW - Lead -- chemistry KW - Environmental Exposure KW - Birds KW - Environmental Pollution KW - Oxides -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71684927?accountid=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=Environmental+pollution+%28Barking%2C+Essex+%3A+1987%29&rft.atitle=Role+of+manganese+oxides+in+the+exposure+of+mute+swans+%28Cygnus+olor%29+to+Pb+and+other+elements+in+the+Chesapeake+Bay%2C+USA.&rft.au=Beyer%2C+W+Nelson%3BDay%2C+Daniel&rft.aulast=Beyer&rft.aufirst=W&rft.date=2004-05-01&rft.volume=129&rft.issue=2&rft.spage=229&rft.isbn=&rft.btitle=&rft.title=Environmental+pollution+%28Barking%2C+Essex+%3A+1987%29&rft.issn=02697491&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-06-24 N1 - Date created - 2004-02-27 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Attempted suicide and associated health risk behaviors among Native American high school students. AN - 66753049; 15283499 AB - Suicide represents the second-leading cause of death among American Indian/Alaska Native (AI/AN) youth aged 15-24 years. Data from the 2001 Bureau of Indian Affairs (BIA) Youth Risk Behavior Survey were used to examine the association between attempted suicide among high school students and unintentional injury and violence behaviors, sexual risk behaviors, tobacco use, and alcohol and other drug use. The study included students in BIA-funded high schools with 10 or more students enrolled in grades 9-12. Overall, 16% of BIA high school students attempted suicide one or more times in the 12 months preceding the survey. Females and males who attempted suicide were more likely than females and males who did not attempt suicide to engage in every risk behavior analyzed: unintentional injury and violence behaviors, sexual risk behaviors, tobacco use, and alcohol and other drug use. These data enable educators, school health professionals, and others who work with this population to better identify American Indian youth at risk for attempting suicide by recognizing the number and variety of health risk behaviors associated with attempted suicide. JF - The Journal of school health AU - Shaughnessy, Lana AU - Doshi, Sonal R AU - Jones, Sherry Everett AD - Bureau of Indian Affairs, Office of Indian Education Programs, 1849 C St., NW, MS-3512 MIB, Washington, DC 20240, USA. lshaughnessy@bia.edu Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 177 EP - 182 VL - 74 IS - 5 SN - 0022-4391, 0022-4391 KW - Index Medicus KW - Nursing KW - Violence -- statistics & numerical data KW - Attitude to Health KW - Humans KW - Psychology, Adolescent KW - United States Indian Health Service -- standards KW - Risk Factors KW - Sampling Studies KW - Adolescent KW - United States -- epidemiology KW - Sex Distribution KW - Time Factors KW - Female KW - Male KW - Sexual Behavior -- statistics & numerical data KW - Substance-Related Disorders -- epidemiology KW - Risk-Taking KW - Suicide, Attempted -- statistics & numerical data KW - Adolescent Behavior -- psychology KW - Indians, North American -- psychology KW - Indians, North American -- statistics & numerical data KW - Suicide, Attempted -- prevention & control KW - Population Surveillance UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66753049?accountid=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+Journal+of+school+health&rft.atitle=Attempted+suicide+and+associated+health+risk+behaviors+among+Native+American+high+school+students.&rft.au=Shaughnessy%2C+Lana%3BDoshi%2C+Sonal+R%3BJones%2C+Sherry+Everett&rft.aulast=Shaughnessy&rft.aufirst=Lana&rft.date=2004-05-01&rft.volume=74&rft.issue=5&rft.spage=177&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+school+health&rft.issn=00224391&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-10-08 N1 - Date created - 2004-07-30 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Phosphorus amendment reduces bioavailability of lead to mallards ingesting contaminated sediments. AN - 66703689; 15253052 AB - Lead poisoning of waterfowl has been reported for decades in the Coeur d'Alene River Basin in Idaho as a result of the ingestion of lead-contaminated sediments. We conducted a study to determine whether the addition of phosphoric acid to sediments would reduce the bioavailability of lead to mallards (Anas platyrhynchos). When sediments were amended with 1% phosphorus under laboratory conditions, and diets containing 12% amended sediment were fed to mallards, reductions in tissue lead were 43% in blood, 41% in liver, and 59% in kidney with sediment containing about 4,520 microg/g lead on a dry-weight basis and 41, 30, and 57% with sediment containing about 6,990 microg/g lead. When sediments were treated with phosphorus and left to age for about 5 months in the field, reductions in lead were 56% in blood, 54% in liver, and 66% in kidney at one site with about 5,390 microg/g lead and 64, 57, and 77% at a second site with about 6,990 microg/g lead. In the field, the inability to mix the phosphoric acid uniformly and deeply enough into the sediment may have resulted in more than 1% phosphorus being added to the sediment. Although both lab and field amendments of phosphorus substantially reduced the bioavailability of lead, lead concentrations in the tissues of mallards fed the amended sediments were still above those believed to be harmful to waterfowl. Based on earlier studies of sediment toxicity to waterfowl in the Coeur d'Alene River Basin, combined with the results of our amendment study, the addition of phosphoric acid as we used it might only significantly benefit waterfowl where sediments or soils contain less than 1,000-2,000 microg/g lead. JF - Archives of environmental contamination and toxicology AU - Heinz, Gary H AU - Hoffman, David J AU - Audet, Daniel J AD - U.S. Geological Survey, Patuxent Wildlife Research Center, Laurel, Maryland 20708-4017, USA. gary_heinz@usgs.gov Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 534 EP - 541 VL - 46 IS - 4 SN - 0090-4341, 0090-4341 KW - Environmental Pollutants KW - 0 KW - Phosphoric Acids KW - Lead KW - 2P299V784P KW - Potassium Chloride KW - 660YQ98I10 KW - phosphoric acid KW - E4GA8884NN KW - Index Medicus KW - Environmental Monitoring KW - Idaho KW - Animals KW - Kidney -- metabolism KW - Animal Feed KW - Potassium Chloride -- administration & dosage KW - Potassium Chloride -- pharmacology KW - Liver -- metabolism KW - Tissue Distribution KW - Male KW - Biological Availability KW - Geologic Sediments -- chemistry KW - Phosphoric Acids -- administration & dosage KW - Phosphoric Acids -- pharmacology KW - Lead -- pharmacokinetics KW - Environmental Pollutants -- blood KW - Ducks -- metabolism KW - Lead -- blood KW - Environmental Pollutants -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66703689?accountid=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=Phosphorus+amendment+reduces+bioavailability+of+lead+to+mallards+ingesting+contaminated+sediments.&rft.au=Heinz%2C+Gary+H%3BHoffman%2C+David+J%3BAudet%2C+Daniel+J&rft.aulast=Heinz&rft.aufirst=Gary&rft.date=2004-05-01&rft.volume=46&rft.issue=4&rft.spage=534&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 - 2004-08-09 N1 - Date created - 2004-07-15 N1 - Date revised - 2017-01-13 N1 - Last updated - 2017-01-18 ER - TY - JOUR T1 - Geology of Gunnison Gorge National Conservation Area, Delta and Montrose Counties, Colorado AN - 51824925; 2004-056829 JF - Fact Sheet - U. S. Geological Survey AU - Kellogg, Karl S AU - Hansen, Wallace R AU - Tucker, Karen S AU - Van Sistine, D Paco Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 6 PB - U. S. Geological Survey, Reston, VA KW - United States KW - hydrology KW - Delta County Colorado KW - lithostratigraphy KW - archaeology KW - petrology KW - erosion KW - rivers and streams KW - landforms KW - Montrose County Colorado KW - areal geology KW - elementary geology KW - human ecology KW - Gunnison Gorge National Conservation Area KW - ecology KW - Colorado KW - USGS KW - 13:Areal geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51824925?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=Kellogg%2C+Karl+S%3BHansen%2C+Wallace+R%3BTucker%2C+Karen+S%3BVan+Sistine%2C+D+Paco&rft.aulast=Kellogg&rft.aufirst=Karl&rft.date=2004-05-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Geology+of+Gunnison+Gorge+National+Conservation+Area%2C+Delta+and+Montrose+Counties%2C+Colorado&rft.title=Geology+of+Gunnison+Gorge+National+Conservation+Area%2C+Delta+and+Montrose+Counties%2C+Colorado&rft.issn=&rft_id=info:doi/ L2 - http://pubs.usgs.gov/fs/2004/3050/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 7 N1 - Availability - U. S. Geol. Surv., Denver, CO, United States N1 - PubXState - VA N1 - Document feature - illus. incl. geol. sketch map N1 - SuppNotes - Prepared in cooperation with the U.S. Bureau of Land Management N1 - Last updated - 2012-06-07 N1 - CODEN - #03880 N1 - SubjectsTermNotLitGenreText - archaeology; areal geology; Colorado; Delta County Colorado; ecology; elementary geology; erosion; Gunnison Gorge National Conservation Area; human ecology; hydrology; landforms; lithostratigraphy; Montrose County Colorado; petrology; rivers and streams; United States; USGS ER - TY - JOUR T1 - New Mexico Museum of Natural History and Science paleontological database AN - 51636913; 2006-010794 AB - The entire catalogued paleontological collection of the New Mexico Museum of Natural History and Science (NMMNH), including 35,902+ fossils from New Mexico, is now online and searchable by the general public, avocational paleontologist, researcher, and geoscience educator. The Web site does not include sensitive geographic localities, but all aspects of the taxonomy, stratigraphy, and chronology of the specimens are viewable at http://164.64.119.14/nmmnh/web/default.html. The NMMNH's collection encompasses fossils from 5,630+ localities (5,115+ in New Mexico) ranging in age from Cambrian to Holocene and representing almost every country in New Mexico. The online database is searchable by taxonomic, stratigraphic, chronologic, and geographic criteria, using a "drill-down" approach that takes advantage of the hierarchical nature of these data to search for specimens or localities at several discrete levels. Taxonomic categories are principally Linnean ranks (class, order, family, genus). Stratigraphic criteria include group, formation, and member. Chronologic criteria are era, period, epoch, stage, and land vertebrate biochron (= land mammal "age"). Geographic criteria are country, state, county, and 7.5-min topographic quadrangle. Complex (Boolean) searches are not presently a feature of the online database. However, chronologic, stratigraphic, and geographic searches will yield complete faunal lists by locality. Additionally, more than 1,400 of the specimens in the database are illustrated digitally, and a digital image (.jpg) of the fossil will appear if it is selected. We envision a wide range of research and outreach opportunities based on this database. For example, geologic mappers can readily learn the number and age of all NMMNH fossil localities on a 7.5-min topographic quadrangle. Similarly, educators and their students can compile questions about fossil faunas from particular areas, times, or stratigraphic units from New Mexico or elsewhere. JF - New Mexico Geology AU - Heckert, Andrew B AU - Berkhoudt, Rene C AU - Hester, Patricia AU - Mathias, Scott Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 59 EP - 61 PB - New Mexico Bureau of Mines and Mineral Resources, Socorro, NM VL - 26 IS - 2 SN - 0196-948X, 0196-948X KW - United States KW - museums KW - New Mexico Museum of Natural History and Science KW - data processing KW - data bases KW - New Mexico KW - computer networks KW - World Wide Web KW - paleontology KW - Internet KW - collections KW - 08:General paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51636913?accountid=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=New+Mexico+Geology&rft.atitle=New+Mexico+Museum+of+Natural+History+and+Science+paleontological+database&rft.au=Heckert%2C+Andrew+B%3BBerkhoudt%2C+Rene+C%3BHester%2C+Patricia%3BMathias%2C+Scott&rft.aulast=Heckert&rft.aufirst=Andrew&rft.date=2004-05-01&rft.volume=26&rft.issue=2&rft.spage=59&rft.isbn=&rft.btitle=&rft.title=New+Mexico+Geology&rft.issn=0196948X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 29 N1 - PubXState - NM N1 - Last updated - 2012-06-07 N1 - CODEN - NMGED2 N1 - SubjectsTermNotLitGenreText - collections; computer networks; data bases; data processing; Internet; museums; New Mexico; New Mexico Museum of Natural History and Science; paleontology; United States; World Wide Web ER - TY - JOUR T1 - Geology of the Craters of the Moon 30' X 60' map area and new perspectives on basaltic volcanism of the eastern Snake River plain, Idaho AN - 51617702; 2006-021445 JF - Open-File Report - U. S. Geological Survey AU - Kuntz, Mel A AU - Owen, Douglass E AU - Champion, Duane E AU - Gans, Phillip B AU - Smith, Sara C AU - Brossy, Cooper Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 136 EP - 155 PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - United States KW - Idaho KW - Craters of the Moon Quadrangle KW - volcanic rocks KW - Quaternary KW - igneous rocks KW - field trips KW - public lands KW - road log KW - volcanic fields KW - Cenozoic KW - national monuments KW - lava KW - volcanism KW - basalts KW - USGS KW - Snake River plain KW - faults KW - 24:Quaternary geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51617702?accountid=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=Geology+of+the+Craters+of+the+Moon+30%27+X+60%27+map+area+and+new+perspectives+on+basaltic+volcanism+of+the+eastern+Snake+River+plain%2C+Idaho&rft.au=Kuntz%2C+Mel+A%3BOwen%2C+Douglass+E%3BChampion%2C+Duane+E%3BGans%2C+Phillip+B%3BSmith%2C+Sara+C%3BBrossy%2C+Cooper&rft.aulast=Kuntz&rft.aufirst=Mel&rft.date=2004-05-01&rft.volume=&rft.issue=&rft.spage=136&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/of/2004/1222/ https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 14 N1 - PubXState - VA N1 - Document feature - illus. incl. 1 table, geol. sketch maps N1 - Last updated - 2016-10-25 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - basalts; Cenozoic; Craters of the Moon Quadrangle; faults; field trips; Idaho; igneous rocks; lava; national monuments; public lands; Quaternary; road log; Snake River plain; United States; USGS; volcanic fields; volcanic rocks; volcanism ER - TY - JOUR T1 - Degradation of 1, 1, 2, 2-tetrachloroethane and accumulation of vinyl chloride in wetland sediment microcosms and in situ porewater: biogeochemical controls and associations with microbial communities AN - 20824571; 5879936 AB - The biodegradation pathways of 1, 1, 2, 2-tetrachloroethane (TeCA) and 1, 1, 2-trichloroethane (112TCA) and the associated microbial communities in anaerobic wetland sediments were evaluated using concurrent geochemical and genetic analyses over time in laboratory microcosm experiments. Experimental results were compared to in situ porewater data in the wetland to better understand the factors controlling daughter product distributions in a chlorinated solvent plume discharging to a freshwater tidal wetland at Aberdeen Proving Ground, Maryland. Microcosms constructed with wetland sediment from two sites showed little difference in the initial degradation steps of TeCA, which included simultaneous hydrogenolysis to 112TCA and dichloroelimination to 1, 2- dichloroethene (12DCE). The microcosms from the two sites showed a substantial difference, however, in the relative dominance of subsequent dichloroelimination of 112TCA. A greater dominance of 112TCA dichloroelimination in microcosms constructed with sediment that was initially iron-reducing and subsequently simultaneously iron-reducing and methanogenic caused approximately twice as much vinyl chloride (VC) production as microcosms constructed with sediment that was methanogenic only throughout the incubation. The microcosms with higher VC production also showed substantially more rapid VC degradation. Field measurements of redox-sensitive constituents, TeCA, and its anaerobic degradation products along flowpaths in the wetland porewater also showed greater production and degradation of VC with concurrent methanogenesis and iron reduction. Molecular fingerprinting indicated that bacterial species [represented by a peak at a fragment size of 198 base pairs (bp) by MnlI digest] are associated with VC production from 112TCA dichloroelimination, whereas methanogens (190 and 307 bp) from the Methanococcales or Methanobacteriales family are associated with VC production from 12DCE hydrogenolysis. Acetate-utilizing methanogens (acetotrophs) appear to be involved in the biodegradation of VC. The relative abundance of Methanosarcinaceae, the only methanogen group with acetotrophic members, doubled in microcosms in which degradation of VC was observed. In addition, molecular analyses using primers specific for known dehalorespiring bacteria in the Dehalococcoides and Desulfuromonas groups showed the presence of these bacteria in microcosm slurry from the site that showed the highest VC production and degradation. Determination of biogeochemical controls and microbial consortia involved in TeCA degradation is leading to a better understanding of the heterogeneity in biodegradation rates and daughter product distribution in the wetland, improving capabilities for developing remediation and monitoring plans. JF - Journal of Contaminant Hydrology AU - Lorah, M M AU - Voytek, MA AD - U.S. Geological Survey, Water Resources Division, MD-DE-DC District, 8987 Yellow Brick Road, Baltimore, MD 21237, USA, mmlorah@usgs.gov Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 117 EP - 145 PB - Elsevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl] VL - 70 IS - 1-2 SN - 0169-7722, 0169-7722 KW - tetrachloroethane KW - Microbiology Abstracts A: Industrial & Applied Microbiology; ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Pollution Abstracts; Water Resources Abstracts KW - Pore water KW - Bioremediation KW - Abundance KW - Freshwater KW - Microbiological Studies KW - Fingerprinting KW - Sediment Contamination KW - Hydrology KW - Wetlands KW - Microcosms KW - Vinyl chloride KW - Methanococcales KW - Freshwater environments KW - Biogeochemistry KW - Primers KW - Contaminants KW - Iron KW - Degradation products KW - Biodegradation KW - Genetic analysis KW - Dehalococcoides KW - Methanosarcinaceae KW - Trichloroethane KW - Methanogenesis KW - Slurries KW - Water pollution treatment KW - Trichloroethylene KW - USA, Maryland KW - Plumes KW - Base pairs KW - Anaerobic bacteria KW - Desulfuromonas KW - Sediment pollution KW - Data processing KW - Solvents KW - Methanogenic bacteria KW - Acetic acid KW - Sediments KW - Dominance KW - USA, Maryland, Aberdeen Proving Ground KW - Remediation KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - A 01390:Forestry KW - AQ 00002:Water Quality KW - Q5 08522:Protective measures and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20824571?accountid=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+Contaminant+Hydrology&rft.atitle=Degradation+of+1%2C+1%2C+2%2C+2-tetrachloroethane+and+accumulation+of+vinyl+chloride+in+wetland+sediment+microcosms+and+in+situ+porewater%3A+biogeochemical+controls+and+associations+with+microbial+communities&rft.au=Lorah%2C+M+M%3BVoytek%2C+MA&rft.aulast=Lorah&rft.aufirst=M&rft.date=2004-05-01&rft.volume=70&rft.issue=1-2&rft.spage=117&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/10.1016%2Fj.jconhyd.2003.08.010 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-10-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Pore water; Sediment pollution; Biodegradation; Bioremediation; Biogeochemistry; Abundance; Methanogenesis; Fingerprinting; Water pollution treatment; Hydrology; Wetlands; Microcosms; Anaerobic bacteria; Data processing; Freshwater environments; Genetic analysis; Solvents; Methanogenic bacteria; Acetic acid; Sediments; Dominance; Slurries; Primers; Contaminants; Plumes; Iron; Vinyl chloride; Degradation products; Base pairs; Remediation; Trichloroethane; Sediment Contamination; Trichloroethylene; Microbiological Studies; Desulfuromonas; Methanococcales; Methanosarcinaceae; Dehalococcoides; USA, Maryland, Aberdeen Proving Ground; USA, Maryland; Freshwater DO - http://dx.doi.org/10.1016/j.jconhyd.2003.08.010 ER - TY - JOUR T1 - Dissimilatory Arsenate Reduction with Sulfide as Electron Donor: Experiments with Mono Lake Water and Isolation of Strain MLMS-1, a Chemoautotrophic Arsenate Respirer AN - 20607047; 6406752 AB - Anoxic bottom water from Mono Lake, California, can biologically reduce added arsenate without any addition of electron donors. Of the possible in situ inorganic electron donors present, only sulfide was sufficiently abundant to drive this reaction. We tested the ability of sulfide to serve as an electron donor for arsenate reduction in experiments with lake water. Reduction of arsenate to arsenite occurred simultaneously with the removal of sulfide. No loss of sulfide occurred in controls without arsenate or in sterilized samples containing both arsenate and sulfide. The rate of arsenate reduction in lake water was dependent on the amount of available arsenate. We enriched for a bacterium that could achieve growth with sulfide and arsenate in a defined, mineral medium and purified it by serial dilution. The isolate, strain MLMS-1, is a gram-negative, motile curved rod that grows by oxidizing sulfide to sulfate while reducing arsenate to arsenite. Chemoautotrophy was confirmed by the incorporation of H super(14)CO super(-) sub(3) into dark-incubated cells, but preliminary gene probing tests with primers for ribulose-1,5-biphosphate carboxylase/oxygenase did not yield PCR-amplified products. Alignment of 16S rRNA sequences indicated that strain MLMS-1 was in the delta -Proteobacteria, located near sulfate reducers like Desulfobulbus sp. (88 to 90% similarity) but more closely related (97%) to unidentified sequences amplified previously from Mono Lake. However, strain MLMS-1 does not grow with sulfate as its electron acceptor. JF - Applied and Environmental Microbiology AU - Hoeft, SE AU - Kulp, T R AU - Stolz, J F AU - Hollibaugh, J T AU - Oremland, R S AD - ms 480, U.S. Geological Survey, 345 Middlefield Rd., Menlo Park, CA 94025, USA, roremlan@usgs.gov Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 2741 EP - 2747 VL - 70 IS - 5 SN - 0099-2240, 0099-2240 KW - ASFA 1: Biological Sciences & Living Resources; Microbiology Abstracts B: Bacteriology KW - Desulfobulbus KW - Phylogeny KW - Bottom water KW - Nucleotide sequence KW - Arsenite KW - Arsenates KW - Strains KW - Sulfate KW - Sulphides KW - Sulfide KW - Lakes KW - Chemoautotrophy KW - Growth KW - Microbiology KW - DNA KW - Polymerase chain reaction KW - Primers KW - USA, California KW - USA, California, Mono L. KW - Oxygenase KW - rRNA 16S KW - Minerals KW - J 02905:Water KW - Q1 08425:Nutrition and feeding habits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20607047?accountid=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=Dissimilatory+Arsenate+Reduction+with+Sulfide+as+Electron+Donor%3A+Experiments+with+Mono+Lake+Water+and+Isolation+of+Strain+MLMS-1%2C+a+Chemoautotrophic+Arsenate+Respirer&rft.au=Hoeft%2C+SE%3BKulp%2C+T+R%3BStolz%2C+J+F%3BHollibaugh%2C+J+T%3BOremland%2C+R+S&rft.aulast=Hoeft&rft.aufirst=SE&rft.date=2004-05-01&rft.volume=70&rft.issue=5&rft.spage=2741&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/10.1128%2FAEM.70.5.2741-2747.2004 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-02-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Phylogeny; Sulphides; Growth; Bottom water; Nucleotide sequence; Microbiology; DNA; Polymerase chain reaction; Strains; Arsenates; Sulfide; Chemoautotrophy; Lakes; Arsenite; Primers; Minerals; rRNA 16S; Oxygenase; Sulfate; Desulfobulbus; USA, California; USA, California, Mono L. DO - http://dx.doi.org/10.1128/AEM.70.5.2741-2747.2004 ER - TY - JOUR T1 - Characterization and origin of polar dissolved organic matter from the Great Salt Lake AN - 20189453; 6023671 AB - Polar dissolved organic matter (DOM) was isolated from a surface-water sample from the Great Salt Lake by separating it from colloidal organic matter by membrane dialysis, from less-polar DOM fractions by resin sorbents, and from inorganic salts by a combination of sodium cation exchange followed by precipitation of sodium salts by acetic acid during evaporative concentration. Polar DOM was the most abundant DOM fraction, accounting for 56% of the isolated DOM. Colloidal organic matter was super(14)C-age dated to be about 100% modern carbon and all of the DOM fractions were super(14)C-age dated to be between 94 and 95% modern carbon. Average structural models of each DOM fraction were derived that incorporated quantitative elemental and infrared, super(13)C-NMR, and electrospray/mass spectrometric data. The polar DOM model consisted of open-chain N-acetyl hydroxy carboxylic acids likely derived from N-acetyl heteropolysaccharides that constituted the colloidal organic matter. The less polar DOM fraction models consisted of aliphatic alicyclic ring structures substituted with carboxyl, hydroxyl, ether, ester, and methyl groups. These ring structures had characteristics similar to terpenoid precursors. All DOM fractions in the Great Salt Lake are derived from algae and bacteria that dominate DOM inputs in this lake. JF - Biogeochemistry AU - Leenheer, JA AU - Noyes, TI AU - Rostad, CE AU - Davisson, M L AD - U.S. Geological Survey, P.O. Box 25046, MS 408, Bldg, 95, Denver Federal Center, Denver, Colorado 80225, USA, leenheer@usgs.gov) Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 125 EP - 141 PB - Kluwer Academic Publishers VL - 69 IS - 1 SN - 0168-2563, 0168-2563 KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; ASFA 1: Biological Sciences & Living Resources; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Dissolved Solids KW - Organic acids KW - Salt lakes KW - Freshwater KW - Models KW - Lakes KW - Carbon KW - Organic Matter KW - carboxylic acids KW - Ethers KW - USA, Utah, Great Salt L. KW - Algae KW - Resins KW - Dialysis KW - Data processing KW - dissolved organic matter KW - Biogeochemistry KW - Organic matter KW - Geochemistry KW - Precipitation KW - Esters KW - Acetic acid KW - Model Studies KW - Sodium KW - Salts KW - Dissolved organic matter KW - Q1 08482:Ecosystems and energetics KW - Q2 09185:Organic compounds KW - SW 0850:Lakes KW - K 03320:Cell Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20189453?accountid=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=Characterization+and+origin+of+polar+dissolved+organic+matter+from+the+Great+Salt+Lake&rft.au=Leenheer%2C+JA%3BNoyes%2C+TI%3BRostad%2C+CE%3BDavisson%2C+M+L&rft.aulast=Leenheer&rft.aufirst=JA&rft.date=2004-05-01&rft.volume=69&rft.issue=1&rft.spage=125&rft.isbn=&rft.btitle=&rft.title=Biogeochemistry&rft.issn=01682563&rft_id=info:doi/10.1023%2FB%3ABIOG.0000031044.16410.27 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Dialysis; Organic acids; Biogeochemistry; Dissolved organic matter; Organic matter; Salt lakes; Resins; Data processing; dissolved organic matter; Precipitation; Esters; Acetic acid; Models; Sodium; Salts; Lakes; Carbon; carboxylic acids; Ethers; Algae; Dissolved Solids; Organic Matter; Geochemistry; Model Studies; USA, Utah, Great Salt L.; Freshwater DO - http://dx.doi.org/10.1023/B:BIOG.0000031044.16410.27 ER - TY - JOUR T1 - Use of a latitudinal gradient in bald cypress (Taxodium distichum) production to examine physiological controls of biotic boundaries and potential responses to environmental change AN - 19417479; 6493801 AB - Predictions of vegetation change with global warming require models that accurately reflect physiological processes underlying growth limitations and species distributions. However, information about environmental controls on physiology and consequent effects on species boundaries and ecosystem functions such as production is limited, especially for forested wetlands that are potentially important carbon sinks. Location The bald cypress (Taxodium distichum) region of the south-eastern United States was studied to examine how production of an important forested wetland varies with latitude and temperature as well as local hydrology. Methods We used published data to analyse litter production across a latitudinal gradient from 26.2 to 37.8 degree N to determine how bald cypress swamps might respond to alternate climate conditions and what changes might occur throughout the distributional range. Results Litterfall rates followed a bell shaped curve, indicating that production was more limited at the distributional boundaries (c. 225 g/m super(2) year super(-1)) compared to the mid-range (7952 year super(-1)). This pattern suggests that conditions are suboptimal near both boundaries and that the absence of populations outside this latitudinal range may be largely due to physiological constraints on the carbon balance of dominant species. While dispersal limitations cannot be totally discounted, competition with other wetland types at the extremes of the range does not seem likely to be important because the relative basal area of bald cypress does not decrease near the edges of the range. Impaired hydrology depressed production across the entire range, but more in the south than the north. Main conclusions Our findings suggest that (1) physiological limitations constrain biotic boundaries of bald cypress swamps; (2) future changes in global temperature would affect litter production in a nonlinear manner across the distributional range; (3) local changes in hydrology may interact with climate to further reduce litter production, particularly at lower latitudes; and (4) southernmost forests could be extirpated if environmental conditions compromise carbon balance and water-use efficiency of trees. JF - Global Ecology and Biogeography AU - Middleton, Beth A AU - Mckee, Karen L AD - USGS, National Wetlands Research Center, 700 Cajundome Blvd., Lafayette, la 70506 USA, beth_middleton@usgs.gov Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 247 EP - 258 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ UK VL - 13 IS - 3 SN - 1466-822X, 1466-822X KW - Baldcypress KW - ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Biotic boundary KW - curvilinear model KW - distribution KW - global climate change KW - impoundment KW - litter production KW - Taxodium distichum KW - temperature KW - Climatic changes KW - Forests KW - Environmental factors KW - Carbon KW - Climatic Changes KW - Hydrology KW - Wetlands KW - Swamps KW - Temperature effects KW - Litter KW - Climate KW - Temperature KW - Environmental impact KW - Vegetation KW - Greenhouse effect KW - USA KW - Latitudinal variations KW - Boundaries KW - Environmental conditions KW - Q1 08483:Species interactions: general KW - D 04625:Plants - general KW - SW 0810:General KW - Q5 08505:Prevention and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19417479?accountid=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=Global+Ecology+and+Biogeography&rft.atitle=Use+of+a+latitudinal+gradient+in+bald+cypress+%28Taxodium+distichum%29+production+to+examine+physiological+controls+of+biotic+boundaries+and+potential+responses+to+environmental+change&rft.au=Middleton%2C+Beth+A%3BMckee%2C+Karen+L&rft.aulast=Middleton&rft.aufirst=Beth&rft.date=2004-05-01&rft.volume=13&rft.issue=3&rft.spage=247&rft.isbn=&rft.btitle=&rft.title=Global+Ecology+and+Biogeography&rft.issn=1466822X&rft_id=info:doi/10.1111%2Fj.1466-822X.2004.00088.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-02-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Latitudinal variations; Climatic changes; Environmental impact; Forests; Hydrology; Greenhouse effect; Wetlands; Environmental factors; Swamps; Temperature effects; Carbon; Climate; Boundaries; Environmental conditions; Litter; Temperature; Vegetation; Climatic Changes; Taxodium distichum; USA DO - http://dx.doi.org/10.1111/j.1466-822X.2004.00088.x ER - TY - JOUR T1 - Spatial and temporal changes in microbial community structure associated with recharge-influenced chemical gradients in a contaminated aquifer AN - 19400313; 5906180 AB - In a contaminated water-table aquifer, we related microbial community structure on aquifer sediments to gradients in 24 geochemical and contaminant variables at five depths, under three recharge conditions. Community amplified ribsosomal DNA restriction analysis (ARDRA) using universal 16S rDNA primers and denaturing gradient gel electrophoresis (DGGE) using bacterial 16S rDNA primers indicated: (i) communities in the anoxic, contaminated central zone were similar regardless of recharge; (ii) after recharge, communities at greatest depth were similar to those in uncontaminated zones; and (iii) after extended lack of recharge, communities at upper and lower aquifer margins differed from communities at the same depths on other dates. General aquifer geochemistry was as important as contaminant or terminal electron accepting process (TEAP) chemistry in discriminant analysis of community groups. The Shannon index of diversity (H) and the evenness index (E), based on DGGE operational taxonomic units (OTUs), were statistically different across community groups and aquifer depths. Archaea or sulphate-reducing bacteria 16S rRNA abundance was not clearly correlated with TEAP chemistry indicative of methanogenesis or sulphate reduction. Eukarya rRNA abundance varied by depth and date from 0 to 13% of the microbial community. This contaminated aquifer is a dynamic ecosystem, with complex interactions between physical, chemical and biotic components, which should be considered in the interpretation of aquifer geochemistry and in the development of conceptual or predictive models for natural attenuation or remediation. JF - Environmental Microbiology AU - Haack, S K AU - Fogarty, L R AU - West, T G AU - Alm, E W AU - Mcguire, J T AU - Long, D T AU - Hyndman, D W AU - Forney, L J AD - US Geological Survey, 6520 Mercantile Way, Suite 5, Lansing, MI 48911, USA., skhaack@usgs.gov Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 438 EP - 448 PB - Blackwell Science Ltd VL - 6 IS - 5 SN - 1462-2912, 1462-2912 KW - Water Resources Abstracts; Pollution Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Aquifers KW - Bioremediation KW - Water Pollution Treatment KW - Geochemistry KW - Water table KW - Groundwater Pollution KW - Water pollution KW - Pollutants KW - Community structure KW - Microorganisms KW - Sediment Contamination KW - Groundwater KW - Groundwater Recharge KW - rRNA 16S KW - SW 3010:Identification of pollutants KW - P 2000:FRESHWATER POLLUTION KW - A 01103:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19400313?accountid=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+Microbiology&rft.atitle=Spatial+and+temporal+changes+in+microbial+community+structure+associated+with+recharge-influenced+chemical+gradients+in+a+contaminated+aquifer&rft.au=Haack%2C+S+K%3BFogarty%2C+L+R%3BWest%2C+T+G%3BAlm%2C+E+W%3BMcguire%2C+J+T%3BLong%2C+D+T%3BHyndman%2C+D+W%3BForney%2C+L+J&rft.aulast=Haack&rft.aufirst=S&rft.date=2004-05-01&rft.volume=6&rft.issue=5&rft.spage=438&rft.isbn=&rft.btitle=&rft.title=Environmental+Microbiology&rft.issn=14622912&rft_id=info:doi/10.1111%2Fj.1462-2920.2003.00563.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-01-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Aquifers; Bioremediation; Community structure; rRNA 16S; Water pollution; Geochemistry; Water table; Water Pollution Treatment; Pollutants; Microorganisms; Sediment Contamination; Groundwater Pollution; Groundwater; Groundwater Recharge DO - http://dx.doi.org/10.1111/j.1462-2920.2003.00563.x ER - TY - JOUR T1 - The Glen Canyon Dam Adaptive Management Program AN - 19398510; 7156976 AB - The Glen Canyon Adaptive Management Program measures the hydrological and ecological effects of Glen Canyon Dam operations on the resources associated with Lake Powell and the Colorado River from Glen Canyon Dam to Lake Mead. This paper provides an overview of the scientific program structure and processes and discusses some of the opportunities for utilizing an adaptive management approach in studying a large river basin. JF - Water Resources Impact AU - Liszewski, MJ Y1 - 2004/05// PY - 2004 DA - May 2004 VL - 6 IS - 3 SN - 1522-3175, 1522-3175 KW - Aqualine Abstracts KW - Rivers KW - River Basins KW - USA, Arizona, Powell L. KW - USA, Mead L. KW - Ecological Effects KW - USA, Colorado R. KW - Lakes KW - Dams KW - Structure KW - Canyons KW - Dam Effects KW - USA, Arizona, Colorado R., Glen Canyon Dam KW - AQ 00005:Underground Services and Water Use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19398510?accountid=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+Glen+Canyon+Dam+Adaptive+Management+Program&rft.au=Liszewski%2C+MJ&rft.aulast=Liszewski&rft.aufirst=MJ&rft.date=2004-05-01&rft.volume=6&rft.issue=3&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Impact&rft.issn=15223175&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Rivers; River Basins; Lakes; Dams; Structure; Canyons; Ecological Effects; Dam Effects; USA, Colorado R.; USA, Arizona, Powell L.; USA, Mead L.; USA, Arizona, Colorado R., Glen Canyon Dam ER - TY - JOUR T1 - Temporal And Geographic Variation In Survival Of Juvenile Black Brant TT - Variación Temporal y Geográfica en la Supervivencia de Juveniles de Branta bernicla nigricans AN - 18059989; 5924576 AB - First-year survival has important implications for the structure and growth of populations. We examined variation in seasonal survival of first-year Pacific Black Brant (Branta bernicla nigricans) marked late in summer in Alaska at two brood-rearing areas on the Yukon-Kuskokwim Delta (Tutakoke and Kokechik) and one area on the Arctic Coastal Plain to provide insight into the magnitude and timing of mortality during fall migration. First-year survival was lower in early fall (15 July-1 October), when birds fledged from brood-rearing areas and migrated to their primary fall staging area at Izembek Lagoon, Alaska, than during late fall and early winter (1 October-15 February), when birds made a long-distance transoceanic flight (>5000 km) to wintering areas in Baja California, Mexico. When compared to other years, monthly survival during early fall was 20-24% lower in 1992, the year of latest hatch dates and slowest growth of goslings. There was strong evidence to indicate that survival varied geographically within the early fall period. Monthly survival estimates during early fall were lowest for birds from Tutakoke, highest for birds from the Arctic Coastal Plain, and intermediate at Kokechik. Our findings revealed that most juvenile mortality occurred during the first 2 months following banding, and variation in juvenile survival during this period was likely influenced significantly by environmental parameters and habitat conditions on the breeding grounds. Monthly survival estimates during the subsequent 4 months were similar across geographic areas, and long-distance migration was likely the most important contributor to juvenile mortality during this period.Original Abstract: La supervivencia durante el primer ano de vida tiene implicancias importantes para la estructura y el crecimiento de las poblaciones. Examinamos la variacion en la supervivencia estacional en individuos anales de Branta bernicla nigricans marcados al final del verano en Alaska en dos areas de cria del Delta Yukon-Kuskokwim (Tutakoke y Kokechik) y un area en la planicie costera artica para brindar informacion sobre la magnitud y el esquema temporal de mortalidad durante la migracion de otono. La supervivencia durante el primer ano fue menor a principios del otono (15 July-1 October), cuando las aves abandonaron las areas de cria y migraron hacia el area principal de permanencia otonal en Izembek Lagoon, Alaska, que durante fines de otono y comienzos del invierno (1 October-15 February), cuando las aves realizaron un vuelo transoceanico de larga distancia (>5000 km) hacia las areas de invernada en Baja California, Mexico. Comparando con otros anos, la supervivencia mensual durante principios del otono fue un 20-24% menor en 1992, el ano con fechas mas tardias de eclosion y con crecimiento mas lento de los polluelos. Hubo fuerte evidencia para indicar que la supervivencia vario geograficamente a principios del otono. Las estimaciones mensuales de supervivencia durante principios del otono fueron menores para las aves de Tutakoke, mayores para las aves de la planicie costera artica, e intermedias para Kokechik. Nuestros resultados revelaron que la mayoria de la mortalidad juvenil ocurrio durante los dos primeros meses luego del anillado, y la variacion en la supervivencia de los juveniles durante este periodo fue probablemente influenciada de forma significativa por parametros ambientales y condiciones del habitat en las areas de cria. Las estimaciones mensuales de supervivencia durante los cuatro meses siguientes fueron similares para las distintas areas geograficas, y la migracion de larga distancia fue probablemente la causa mas importante de mortalidad juvenil durante este periodo. JF - Condor AU - Ward, D H AU - Schmutz, JA AU - Sedinger, J S AU - Bollinger, K S AU - Martin, P D AU - Anderson, BA AD - United States Geological Survey, Alaska Science Center, 1011 E. Tudor Road, Anchorage, AK 99503, david_ward@usgs.gov Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 263 EP - 274 PB - Cooper Ornithological Society VL - 106 IS - 2 SN - 0010-5422, 0010-5422 KW - Aquatic birds KW - Black Brant KW - Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - INE, USA, Alaska, Alaska Peninsula, Izembek Lagoon KW - USA, Alaska KW - Weather KW - Juveniles KW - Branta bernicla nigricans KW - Temporal variations KW - Overwintering KW - USA, Alaska, Arctic Coastal Plain KW - Survival KW - Migration KW - Environmental factors KW - Breeding sites KW - Migrations KW - Population structure KW - Coastal lagoons KW - Regional variations 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/18059989?accountid=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=Temporal+And+Geographic+Variation+In+Survival+Of+Juvenile+Black+Brant&rft.au=Ward%2C+D+H%3BSchmutz%2C+JA%3BSedinger%2C+J+S%3BBollinger%2C+K+S%3BMartin%2C+P+D%3BAnderson%2C+BA&rft.aulast=Ward&rft.aufirst=D&rft.date=2004-05-01&rft.volume=106&rft.issue=2&rft.spage=263&rft.isbn=&rft.btitle=&rft.title=Condor&rft.issn=00105422&rft_id=info:doi/10.1043%2F0010-5422%282004%29106%280263%3ATAGVIS%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Juveniles; Breeding sites; Overwintering; Temporal variations; Migrations; Survival; Population structure; Coastal lagoons; Environmental factors; Regional variations; Mortality causes; Weather; Migration; Branta bernicla nigricans; USA, Alaska; INE, USA, Alaska, Alaska Peninsula, Izembek Lagoon; USA, Alaska, Arctic Coastal Plain; INE, USA, Alaska, Yukon-Kuskokwim Delta DO - http://dx.doi.org/10.1043/0010-5422(2004)106(0263:TAGVIS)2.0.CO;2 ER - TY - JOUR T1 - Lack Of Spatial Genetic Structure Among Nesting And Wintering King Eiders Somateria spectabilis TT - Ausencia de Estructura Genetica Espacial entre Areas de Nidificacion e Invernada en Somateria spectabilis AN - 18051836; 5924574 AB - The King Eider (Somateria spectabilis) has been delineated into two broadly distributed breeding populations in North America (the western and eastern Arctic) on the basis of banding data and their use of widely separated Pacific and Atlantic wintering areas. Little is known about the level of gene flow between these two populations. Also unknown is whether behavioral patterns common among migratory waterfowl, such as site fidelity to wintering areas and pair formation at these sites, have existed for sufficient time to create a population structure defined by philopatry to wintering rather than to nesting locations. We used six nuclear microsatellite DNA loci and cytochrome b mitochondrial DNA sequence data to estimate the extent of spatial genetic differentiation among nesting and wintering areas of King Eiders across North America and adjacent regions. Estimates of interpopulation variance in microsatellite allele and mtDNA haplotype frequency were both low and nonsignificant based on samples from three wintering and four nesting areas. Results from nested clade analysis, mismatch distributions, and coalescent-based analyses suggest historical population growth and gene flow that collectively may have homogenized gene frequencies. The presence of several unique mtDNA haplotypes among birds wintering near Greenland suggests that gene flow may now be more limited between the western and eastern Arctic, which is consistent with banding data.Original Abstract: Con base en datos de anillamiento y en el uso de areas de invernada separadas en el Pacifico y el Atlantico, la especie Somateria spectabilis ha sido separada en dos poblaciones reproductivas de amplia distribucion en Norte America (las del Artico este y oeste). Se conoce poco sobre los niveles de flujo genico entre estas dos poblaciones. Tambien se desconoce si patrones de comportamiento comunes entre aves acuaticas migratorias, como la fidelidad a los sitios de invernada y la formacion de parejas en dichos sitios, han existido por suficiente tiempo como para crear estructura poblacional definida por la filopatria a las areas de invernada en lugar de a las areas de nidificacion. Utilizamos seis loci nucleares de ADN microsatelital y secuencias del gen mitocondrial citocromo b para estimar el grado de diferenciacion genetica espacial entre areas de nidificacion e invernada de S. spectabilis a traves de Norte America y regiones adyacentes. Los estimados de la varianza interpoblacional en la frecuencia de alelos de microsatelites y de haplotipos de ADNmt fueron bajos y no significativos con base en muestras de tres areas de invernada y cuatro de nidificacion. Los resultados de un analisis de clados anidados, de las distribuciones 'mismatch' y de analisis basados en coalescencia sugieren la existencia de crecimiento poblacional historico y flujo genico, eventos que colectivamente podrian haber homogeneizado las frecuencias genicas. La presencia de varios haplotipos exclusivos entre aves que invernan cerca de Groenlandia sugiere que el flujo genico podria ser ahora mas limitado entre el Artico oeste y este, lo que es consistente con los datos de anillamiento. JF - Condor AU - Pearce, J M AU - Talbot, S L AU - Pierson, B J AU - Petersen, M R AU - Scribner, K T AU - Dickson, D L AU - Mosbech, A AD - U.S. Geological Survey, Alaska Science Center, 1011 E. Tudor Rd., Anchorage, AK 99503, john_pearce@usgs.gov Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 229 EP - 240 PB - Cooper Ornithological Society VL - 106 IS - 2 SN - 0010-5422, 0010-5422 KW - Gene flow KW - King eider KW - Marine birds KW - Microsatellites KW - Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Genetics Abstracts; Ecology Abstracts KW - Genomes KW - North America KW - Cytochromes KW - Overwintering KW - Nucleotide sequence KW - Habitat KW - Philopatry KW - Winter KW - PN, Arctic KW - Population genetics KW - PN, Greenland KW - Breeding sites KW - Nesting KW - Somateria spectabilis KW - DNA KW - Isolating mechanisms KW - Reproductive behaviour KW - AN, Greenland KW - Q1 08443:Population genetics KW - D 04671:Birds KW - O 1050:Vertebrates, Urochordates and Cephalochordates KW - G 07290:Population genetics KW - Q1 08365:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18051836?accountid=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=Lack+Of+Spatial+Genetic+Structure+Among+Nesting+And+Wintering+King+Eiders+Somateria+spectabilis&rft.au=Pearce%2C+J+M%3BTalbot%2C+S+L%3BPierson%2C+B+J%3BPetersen%2C+M+R%3BScribner%2C+K+T%3BDickson%2C+D+L%3BMosbech%2C+A&rft.aulast=Pearce&rft.aufirst=J&rft.date=2004-05-01&rft.volume=106&rft.issue=2&rft.spage=229&rft.isbn=&rft.btitle=&rft.title=Condor&rft.issn=00105422&rft_id=info:doi/10.1043%2F0010-5422%282004%29106%280229%3ALOSGSA%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Genomes; Cytochromes; Population genetics; Marine birds; Breeding sites; Overwintering; Nesting; Nucleotide sequence; DNA; Isolating mechanisms; Reproductive behaviour; Habitat; Gene flow; Philopatry; Winter; Somateria spectabilis; PN, Arctic; North America; PN, Greenland; AN, Greenland DO - http://dx.doi.org/10.1043/0010-5422(2004)106(0229:LOSGSA)2.0.CO;2 ER - TY - JOUR T1 - Estimating Population Trends With A Linear Model: Technical Comments TT - Estimando Tendencias Poblacionales con un Modelo Lineal: Comentarios Tecnicos AN - 17978570; 5922689 AB - Controversy has sometimes arisen over whether there is a need to accommodate the limitations of survey design in estimating population change from the count data collected in bird surveys. Analyses of surveys such as the North American Breeding Bird Survey (BBS) can be quite complex; it is natural to ask if the complexity is necessary, or whether the statisticians have run amok. Bart et al. (2003) propose a very simple analysis involving nothing more complicated than simple linear regression, and contrast their approach with model-based procedures. We review the assumptions implicit to their proposed method, and document that these assumptions are unlikely to be valid for surveys such as the BBS. One fundamental limitation of a purely design-based approach is the absence of controls for factors that influence detection of birds at survey sites. We show that failure to model observer effects in survey data leads to substantial bias in estimation of population trends from BBS data for the 20 species that Bart et al. (2003) used as the basis of their simulations. Finally, we note that the simulations presented in Bart et al. (2003) do not provide a useful evaluation of their proposed method, nor do they provide a valid comparison to the estimating- equations alternative they consider.Original Abstract: A veces ha surgido controversia sobre la necesidad de considerar las limitantes del diseno de muestreo al estimar cambios poblacionales a partir de datos de conteos de aves. Los analisis de muestreos como el Muestreo de Aves Reproductivas de America del Norte (North American Breeding Bird Survey [BBS]) pueden ser bastante complejos; es natural preguntarse si esta complejidad es necesaria, o si los ana lisis estadisticos son desmedidos.proponen un analisis muy simple que solo involucra regresion lineal simple, y contrastan su enfoque con los procedimientos basados en modelos. Nosotros revisamos los supuestos implicitos en el metodo que ellos proponen y documentamos que estos supuestos no son probablemente validos para muestreos tales como el BBS. Una limitante fundamental de un enfoque basado exclusivamente en el diseno es la ausencia de controles para factores que influencian la deteccion de aves en los sitios de muestreo. Mostramos que el hecho de no modelar los efectos del observador en los datos de muestreo lleva a sesgos substanciales en las estimaciones de las tendencias poblacionales de las 20 especies queusaron como la base de sus simulaciones a partir de datos del BBS. Finalmente, notamos que las simulaciones presentadas enno brindan una evaluacion util del metodo que proponen ni tampoco ofrecen una comparacion va lida para la alternativa de estimacion de ecuaciones que ellos consideran. JF - Condor AU - Sauer, J R AU - Link, WA AU - Royle, JA AD - USGS Patuxent Wildlife Research Center and U.S. Fish and Wildlife Service, 12100 Beech Forest Road, Laurel, MD 20708-4039, john_r_sauer@usgs.gov Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 435 EP - 440 PB - Cooper Ornithological Society VL - 106 IS - 2 SN - 0010-5422, 0010-5422 KW - Birds KW - Ecology Abstracts KW - Aves KW - Statistical analysis KW - Population studies KW - Sampling KW - Methodology KW - Models KW - D 04671:Birds KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17978570?accountid=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=Estimating+Population+Trends+With+A+Linear+Model%3A+Technical+Comments&rft.au=Sauer%2C+J+R%3BLink%2C+WA%3BRoyle%2C+JA&rft.aulast=Sauer&rft.aufirst=J&rft.date=2004-05-01&rft.volume=106&rft.issue=2&rft.spage=435&rft.isbn=&rft.btitle=&rft.title=Condor&rft.issn=00105422&rft_id=info:doi/10.1043%2F0010-5422%282004%29106%280435%3AEPTWAL%292.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0010-5422&volume=106&page=435 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Aves; Sampling; Statistical analysis; Models; Methodology; Population studies DO - http://dx.doi.org/10.1043/0010-5422(2004)106(0435:EPTWAL)2.0.CO;2 ER - TY - JOUR T1 - Influence of habitat heterogeneity on the distribution of larval Pacific lamprey (Lampetra tridentata) at two spatial scales AN - 17975695; 5920101 AB - Spatial patterns in channel morphology and substratum composition at small (1-10 metres) and large scales (1-10 kilometres) were analysed to determine the influence of habitat heterogeneity on the distribution and abundance of larval lamprey. We used a nested sampling design and multiple logistic regression to evaluate spatial heterogeneity in the abundance of larval Pacific lamprey, Lampetra tridentata, and habitat in 30 sites (each composed of twelve 1-m super(2) quadrat samples) distributed throughout a 55-km section of the Middle Fork John Day River, OR, U.SA. Statistical models predicting the relative abundance of larvae both among sites (large scale) and among samples (small scale) were ranked using Akaike's Information Criterion (AIC) to identify the 'best approximating' models from a set of a priori candidate models determined from the literature on larval lamprey habitat associations. Stream habitat variables predicted patterns in larval abundance but played different roles at different spatial scales. The abundance of larvae at large scales was positively associated with water depth and open riparian canopy, whereas patchiness in larval occurrence at small scales was associated with low water velocity, channel-unit morphology (pool habitats), and the availability of habitat suitable for burrowing.Habitat variables explained variation in larval abundance at large and small scales, but locational factors, such as longitudinal position (river km) and sample location within the channel unit, explained additional variation in the logistic regression model. The results emphasise the need for spatially explicit analysis, both in examining fish habitat relationships and in developing conservation plans for declining fish populations. JF - Freshwater Biology AU - Torgersen, CE AU - Close, DA AD - Oregon Cooperative Fish and Wildlife Research Unit, Department of Fisheries and Wildlife, Oregon State University, Corvallis, OR, U.S.A., ctorgersen@usgs.gov Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 614 EP - 630 PB - Blackwell Science Ltd VL - 49 IS - 5 SN - 0046-5070, 0046-5070 KW - Pacific lamprey KW - Ecology Abstracts KW - Lampetra tridentata KW - Ecological distribution KW - Morphology KW - Habitat changes KW - Population decline KW - USA, Oregon KW - Methodology KW - D 04668:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17975695?accountid=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=Influence+of+habitat+heterogeneity+on+the+distribution+of+larval+Pacific+lamprey+%28Lampetra+tridentata%29+at+two+spatial+scales&rft.au=Torgersen%2C+CE%3BClose%2C+DA&rft.aulast=Torgersen&rft.aufirst=CE&rft.date=2004-05-01