{"pageNumber":"3140","pageRowStart":"78475","pageSize":"25","recordCount":184880,"records":[{"id":70023693,"text":"70023693 - 2001 - Atmospheric regime of dust and salt through 75,000 years of Taylor Dome ice core: Refinement by measurement of major, minor, and trace metal suites","interactions":[],"lastModifiedDate":"2022-11-30T18:52:09.924438","indexId":"70023693","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2316,"text":"Journal of Geophysical Research D: Atmospheres","active":true,"publicationSubtype":{"id":10}},"title":"Atmospheric regime of dust and salt through 75,000 years of Taylor Dome ice core: Refinement by measurement of major, minor, and trace metal suites","docAbstract":"<p>Measurement of absolute and relative amounts of dust and salt deposited in the polar ice record is central to several fields of study, including nutrient delivery, atmospheric deposition of trace elements, past wind strengths, dust provenance, and other aspects of climate and geochemical history. We present a method intended to give a more accurate picture than has been possible before of the total amounts and relative proportions of the dust and salt deposited by the atmosphere into polar ice. It also permits us to distinguish different compositional types of dust in the ice. The method is based on precise measurement of a suite of several metals whose proportions contrast strongly between dust and salt and vary substantially between dust types. We apply the method to a small suite of ice samples from the Taylor Dome core in coastal West Antarctica. In full glacial times, when total impurities were high and dust dominated over salt, wind strength in the West Antarctic region was apparently high, and extensive sea-ice cover prevented incorporation of salt into the atmospheric load. At the termination of the glacial period, increased salt in the dust-salt mixture indicates that sea ice diminished, but wind strength continued high, and unchanged dust composition indicates unchanged source areas. At about 10,000-11,000 y.B.P., sea-ice cover appears to have briefly returned to glacial conditions, but wind conditions remained in the milder postglacial condition. Soon after, sea ice retreated, and an abrupt change in dust composition indicates changed source materials or terranes. If extended by analysis of more samples from more sites, such information on salt and dust could provide firm constraints on past wind strengths, extent of sea-ice cover, deposition fluxes of salt and dust, and changing continental source areas of dust, for both polar regions of the Earth.</p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2000JD900550","issn":"01480227","usgsCitation":"Hinkley, T.K., and Matsumoto, A., 2001, Atmospheric regime of dust and salt through 75,000 years of Taylor Dome ice core: Refinement by measurement of major, minor, and trace metal suites: Journal of Geophysical Research D: Atmospheres, v. 106, no. D16, p. 18487-18493, https://doi.org/10.1029/2000JD900550.","productDescription":"7 p.","startPage":"18487","endPage":"18493","costCenters":[],"links":[{"id":478984,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2000jd900550","text":"Publisher Index Page"},{"id":232381,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Antarctica, Taylor Dome","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              158.0598272117477,\n              -77.62100819368189\n            ],\n            [\n              158.0598272117477,\n              -78.0798629360242\n            ],\n            [\n              161.3835191945576,\n              -78.0798629360242\n            ],\n            [\n              161.3835191945576,\n              -77.62100819368189\n            ],\n            [\n              158.0598272117477,\n              -77.62100819368189\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"106","issue":"D16","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059eec5e4b0c8380cd49f43","contributors":{"authors":[{"text":"Hinkley, T. K. 0000-0001-8507-6271","orcid":"https://orcid.org/0000-0001-8507-6271","contributorId":78731,"corporation":false,"usgs":true,"family":"Hinkley","given":"T.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":398468,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Matsumoto, A.","contributorId":53987,"corporation":false,"usgs":true,"family":"Matsumoto","given":"A.","email":"","affiliations":[],"preferred":false,"id":398467,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":2002779,"text":"2002779 - 2001 - Marine predator surveys in Glacier Bay National Park and Preserve","interactions":[],"lastModifiedDate":"2018-06-19T19:37:17","indexId":"2002779","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"seriesTitle":{"id":396,"text":"Annual Report","active":false,"publicationSubtype":{"id":9}},"title":"Marine predator surveys in Glacier Bay National Park and Preserve","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey Alaska Science Center","publisherLocation":"Anchorage, AK","usgsCitation":"Bodkin, J.L., Kloecker, K.A., Coletti, H., Esslinger, G.G., Monson, D., and Ballachey, B.E., 2001, Marine predator surveys in Glacier Bay National Park and Preserve: Annual Report.","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":198842,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a1ae4b07f02db606439","contributors":{"authors":[{"text":"Bodkin, James L. 0000-0003-1641-4438 jbodkin@usgs.gov","orcid":"https://orcid.org/0000-0003-1641-4438","contributorId":748,"corporation":false,"usgs":true,"family":"Bodkin","given":"James","email":"jbodkin@usgs.gov","middleInitial":"L.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":326638,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kloecker, Kimberly A. 0000-0002-2461-968X kkloecker@usgs.gov","orcid":"https://orcid.org/0000-0002-2461-968X","contributorId":3442,"corporation":false,"usgs":true,"family":"Kloecker","given":"Kimberly","email":"kkloecker@usgs.gov","middleInitial":"A.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":326637,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Coletti, H.A.","contributorId":33426,"corporation":false,"usgs":true,"family":"Coletti","given":"H.A.","affiliations":[],"preferred":false,"id":326639,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Esslinger, George G. 0000-0002-3459-0083 gesslinger@usgs.gov","orcid":"https://orcid.org/0000-0002-3459-0083","contributorId":131009,"corporation":false,"usgs":true,"family":"Esslinger","given":"George","email":"gesslinger@usgs.gov","middleInitial":"G.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":326642,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Monson, Daniel H. 0000-0002-4593-5673 dmonson@usgs.gov","orcid":"https://orcid.org/0000-0002-4593-5673","contributorId":140480,"corporation":false,"usgs":true,"family":"Monson","given":"Daniel H.","email":"dmonson@usgs.gov","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":false,"id":326641,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Ballachey, Brenda E. 0000-0003-1855-9171 bballachey@usgs.gov","orcid":"https://orcid.org/0000-0003-1855-9171","contributorId":2966,"corporation":false,"usgs":true,"family":"Ballachey","given":"Brenda","email":"bballachey@usgs.gov","middleInitial":"E.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":326640,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":1016138,"text":"1016138 - 2001 - Killdeer population trends in North America","interactions":[],"lastModifiedDate":"2012-02-02T00:04:50","indexId":"1016138","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2284,"text":"Journal of Field Ornithology","active":true,"publicationSubtype":{"id":10}},"title":"Killdeer population trends in North America","docAbstract":"Killdeers (Charadrius vociferus) are considered a common species that inhabits a wide range of wetland and upland habitats throughout much of North America, yet recent information suggests that they may be declining regionally, if not throughout much of their range. To address this issue, we examined population trends of this species at multiple spatial and temporal scales using data from two major avian survey efforts, the Breeding Bird Survey (BBS) and Christmas Bird Count (CBC). A summary of BBS trends indicates significant long-term (1966a??1996) declines in breeding populations across North America. Geographic regions driving this decline were Canada, western survey regions of the continent, and select southeastern states. In contrast, over the same time period, Killdeer populations increased in some midwestern states, particularly those in the Great Lakes region. Recent BBS trends (1986a??1996) indicate highly significant declines across most areas of North America surveyed. Trends from CBC data (1959a??1988) indicate declines at a smaller spatial scale. While the ability of current major avian survey efforts to detect population trends for Killdeer and other shorebird species warrants further examination, significant negative trends in Killdeer populations indicates the need to further investigate the status of this species.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Field Ornithology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Sanzenbacher, P.M., and Haig, S.M., 2001, Killdeer population trends in North America: Journal of Field Ornithology, v. 72, no. 1, p. 160-169.","productDescription":"p. 160-169","startPage":"160","endPage":"169","numberOfPages":"10","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":134300,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"72","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b32e4b07f02db6b47b7","contributors":{"authors":[{"text":"Sanzenbacher, Peter M.","contributorId":90260,"corporation":false,"usgs":false,"family":"Sanzenbacher","given":"Peter","email":"","middleInitial":"M.","affiliations":[{"id":13016,"text":"Department of Fisheries and Wildlife, Oregon State University","active":true,"usgs":false}],"preferred":false,"id":323607,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Haig, Susan M. 0000-0002-6616-7589 susan_haig@usgs.gov","orcid":"https://orcid.org/0000-0002-6616-7589","contributorId":719,"corporation":false,"usgs":true,"family":"Haig","given":"Susan","email":"susan_haig@usgs.gov","middleInitial":"M.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true},{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"preferred":true,"id":323606,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70023604,"text":"70023604 - 2001 - Viagra falls: Pharmaceuticals in rivers and municipal tap water","interactions":[],"lastModifiedDate":"2012-03-12T17:20:01","indexId":"70023604","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3726,"text":"Water Well Journal","active":true,"publicationSubtype":{"id":10}},"title":"Viagra falls: Pharmaceuticals in rivers and municipal tap water","docAbstract":"[No abstract available]","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Water Well Journal","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00431443","usgsCitation":"Masters, B., 2001, Viagra falls: Pharmaceuticals in rivers and municipal tap water: Water Well Journal, v. 55, no. 7, p. 16-18.","startPage":"16","endPage":"18","numberOfPages":"3","costCenters":[],"links":[{"id":232259,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"55","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc254e4b08c986b32aa8f","contributors":{"authors":[{"text":"Masters, B.","contributorId":64843,"corporation":false,"usgs":true,"family":"Masters","given":"B.","email":"","affiliations":[],"preferred":false,"id":398186,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1016037,"text":"1016037 - 2001 - Geographic variation and genetic structure in Spotted Owls","interactions":[],"lastModifiedDate":"2022-10-06T16:07:31.503127","indexId":"1016037","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1324,"text":"Conservation Genetics","active":true,"publicationSubtype":{"id":10}},"title":"Geographic variation and genetic structure in Spotted Owls","docAbstract":"<p><span>We examined genetic variation, population structure, and definition of conservation units in Spotted Owls (</span><i>Strix occidentalis</i><span>). Spotted Owls are mostly non-migratory, long-lived, socially monogamous birds that have decreased population viability due to their occupation of highly-fragmented late successional forests in western North America. To investigate potential effects of habitat fragmentation on population structure, we used random amplified polymorphic DNA (RAPD) to examine genetic variation hierarchically among&nbsp;</span><i>local breeding areas</i><span>,&nbsp;</span><i>subregional groups</i><span>,&nbsp;</span><i>regional groups</i><span>, and&nbsp;</span><i>subspecies </i><span>via sampling of 21 breeding areas (276individuals) among the three subspecies of Spotted Owls. Data from 11 variable bands suggest a significant relationship between geographic distance among local breeding groups and genetic distance (Mantel r = 0.53,&nbsp;</span><i>P</i><span>&lt; 0.02) although multi-dimensional scaling of three significant axes did not identify significant grouping at any hierarchical level. Similarly, neighbor-joining clustering of Manhattan distances indicated geographic structure at all levels and identified Mexican Spotted Owls as a distinct clade. RAPD analyses did not clearly differentiate Northern Spotted Owls from California Spotted Owls. Among Northern Spotted Owls, estimates of population differentiation (F</span><sub>ST</sub><span>) ranged from 0.27 among breeding areas to 0.11 among regions. Concordantly, within-group agreement values estimated via multi-response permutation procedures of Jaccard's distances ranged from0.22 among local sites to 0.11 among regions. Pairwise comparisons of F</span><sub>ST</sub><span>&nbsp;and geographic distance within regions suggested only the Klamath region was in equilibrium with respect to gene flow and genetic drift. Merging nuclear data with recent mitochondrial data provides support for designation of an Evolutionary Significant Unit for Mexican Spotted Owls and two overlapping Management Units for Northern and California Spotted Owls.</span></p>","language":"English","publisher":"Springer","doi":"10.1023/A:1011561101460","usgsCitation":"Haig, S.M., Wagner, R., Forsman, E., and Mullins, T., 2001, Geographic variation and genetic structure in Spotted Owls: Conservation Genetics, v. 2, no. 1, p. 25-40, https://doi.org/10.1023/A:1011561101460.","productDescription":"16 p.","startPage":"25","endPage":"40","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":134134,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada, Mexico, United States","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      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Center","active":false,"usgs":true},{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":true,"id":323535,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wagner, R.S.","contributorId":57427,"corporation":false,"usgs":true,"family":"Wagner","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":323537,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Forsman, E.D.","contributorId":88324,"corporation":false,"usgs":true,"family":"Forsman","given":"E.D.","email":"","affiliations":[],"preferred":false,"id":323538,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mullins, Thomas D.","contributorId":12819,"corporation":false,"usgs":true,"family":"Mullins","given":"Thomas D.","affiliations":[],"preferred":false,"id":323536,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":1016191,"text":"1016191 - 2001 - Genetic and morphologic variation in Phyllodoce empetriformis and Phyllodoce glanduliflora (Ericaceae) in Mount Rainier National Park, Washington","interactions":[],"lastModifiedDate":"2022-08-24T16:37:54.687018","indexId":"1016191","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1167,"text":"Canadian Journal of Botany","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Genetic and morphologic variation in <i>Phyllodoce empetriformis</i> and <i>Phyllodoce glanduliflora</i> (Ericaceae) in Mount Rainier National Park, Washington","title":"Genetic and morphologic variation in Phyllodoce empetriformis and Phyllodoce glanduliflora (Ericaceae) in Mount Rainier National Park, Washington","docAbstract":"<p><span>Genetic and morphological diversity of&nbsp;</span><i>Phyllodoce empetriformis</i><span>&nbsp;(Sw.) D. Don and&nbsp;</span><i>Phyllodoce</i><span>&nbsp;</span><i>glanduliflora</i><span>&nbsp;(hook.) Cov. were surveyed in Mount Rainier National Park in the Cascade Mountains of Washington State. Paired populations at high and low elevations were sampled at three study areas between 1720- and 2451-m elevation. Allozyme analysis of four polymorphic loci indicates high levels of genetic diversity within populations (</span><i>P. empetriformis</i><span>&nbsp;= 94.2% and&nbsp;</span><i>P. glanduliflora</i><span>&nbsp;= 93.4% of total diversity) and significant differences in allele frequencies among populations and study areas. Individual populations are composed of multiple clones with high ratios of local to widespread genotypes. The proportion of distinguishable clones ranges from 32 to 83% within individual populations. Within individual populations, 18-67% of genotypes were restricted to one population. Patterns of morphologic variation, estimated through measurements of leaf width, leaf length, stem extension, and plant height paralleled those displayed by allozyme analysis. Significant differences were found in leaf width and stem length for&nbsp;</span><i>P. empetriformis</i><span>&nbsp;and among greenhouse populations for leaf width (</span><i>P. empetriformis</i><span>) and leaf length (</span><i>P. glanduliflora</i><span>). Species conservation strategies for&nbsp;</span><i>Phyllodoce</i><span>&nbsp;should concentrate on the maintenance of within-population levels of diversity, protection of adjacent populations, and protection of safe sites for recruitment of new populations.</span></p>","language":"English","publisher":"Canadian Science Publishing","doi":"10.1139/b00-147","usgsCitation":"Rochefort, R.M., and Peterson, D.L., 2001, Genetic and morphologic variation in Phyllodoce empetriformis and Phyllodoce glanduliflora (Ericaceae) in Mount Rainier National Park, Washington: Canadian Journal of Botany, v. 79, no. 2, p. 179-191, https://doi.org/10.1139/b00-147.","productDescription":"13 p.","startPage":"179","endPage":"191","numberOfPages":"13","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":134459,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","otherGeospatial":"Mount Rainier National Park","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -121.92352294921874,\n              46.702202151643455\n            ],\n            [\n              -121.4483642578125,\n              46.702202151643455\n            ],\n            [\n              -121.4483642578125,\n              47.00460694243501\n            ],\n            [\n              -121.92352294921874,\n              47.00460694243501\n            ],\n            [\n              -121.92352294921874,\n              46.702202151643455\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"79","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b24e4b07f02db6aeb94","contributors":{"authors":[{"text":"Rochefort, Regina M.","contributorId":91459,"corporation":false,"usgs":true,"family":"Rochefort","given":"Regina","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":323701,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Peterson, D. L.","contributorId":36484,"corporation":false,"usgs":true,"family":"Peterson","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":323700,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70023901,"text":"70023901 - 2001 - Analysing the capabilities and limitations of tracer tests in stream-aquifer systems","interactions":[],"lastModifiedDate":"2012-03-12T17:20:01","indexId":"70023901","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1934,"text":"IAHS-AISH Publication","active":true,"publicationSubtype":{"id":10}},"title":"Analysing the capabilities and limitations of tracer tests in stream-aquifer systems","docAbstract":"The goal of this study was to identify the limitations that apply when we couple conservative-tracer injection with reactive solute sampling to identify the transport and reaction processes active in a stream. Our methodology applies Monte Carlo uncertainty analysis to assess the ability of the tracer approach to identify the governing transport and reaction processes for a wide range of stream-solute transport and reaction scenarios likely to be encountered in high-gradient streams. Our analyses identified dimensionless factors that define the capabilities and limitations of the tracer approach. These factors provide a framework for comparing and contrasting alternative tracer test designs.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"IAHS-AISH Publication","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"01447815","usgsCitation":"Wagner, B., and Harvey, J., 2001, Analysing the capabilities and limitations of tracer tests in stream-aquifer systems: IAHS-AISH Publication, no. 269, p. 191-198.","startPage":"191","endPage":"198","numberOfPages":"8","costCenters":[],"links":[{"id":231896,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"269","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059eaf3e4b0c8380cd48b0c","contributors":{"authors":[{"text":"Wagner, B.J.","contributorId":18012,"corporation":false,"usgs":true,"family":"Wagner","given":"B.J.","email":"","affiliations":[],"preferred":false,"id":399272,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Harvey, J. W. 0000-0002-2654-9873","orcid":"https://orcid.org/0000-0002-2654-9873","contributorId":39725,"corporation":false,"usgs":true,"family":"Harvey","given":"J. W.","affiliations":[],"preferred":false,"id":399273,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70023580,"text":"70023580 - 2001 - Occurrence of cyanazine compounds in groundwater: Degradates more prevalent than the parent compound","interactions":[],"lastModifiedDate":"2018-11-30T06:36:38","indexId":"70023580","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Occurrence of cyanazine compounds in groundwater: Degradates more prevalent than the parent compound","docAbstract":"<p>A recently developed analytical method using liquid chromatography/mass spectrometry was used to investigate the occurrence of cyanazine and its degradates cyanazine acid (CAC), cyanazine amide (CAM), deethylcyanazine (DEC), and deethylcyanazine acid (DCAC) in groundwater. This research represents some of the earliest data on the occurrence of cyanazine degradates in groundwater. Although cyanazine was infrequently detected in the 64 wells across Iowa sampled in 1999, cyanazine degradates were commonly found during this study. The most frequently detected cyanazine compound was DCAC (32.8%) followed by CAC (29.7%), CAM (17.2%), DEC (3.1%), and cyanazine (3.1%). The frequency of detection for cyanazine or one or more of its degradates (CYTOT) was more than 12-fold over that of cyanazine alone (39.1% for CYTOT versus 3.1% for cyanazine). Of the total measured concentration of cyanazine, only 0.2% was derived from its parent compound - with DCAC (74.1%) and CAC (18.4%) comprising 92.5% of this total. Thus, although DCAC and CAC had similar frequencies of detection, DCAC was generally present in higher concentrations. No concentrations of cyanazine compounds for this study exceeded water-quality criteria for the protection of human health. Only cyanazine, however, has such a criteria established. Nevertheless, because these cyanazine degradates are still chlorinated, they may have similar toxicity as their parent compound - similar to what has been found with the chlorinated degradates of atrazine. Thus, the results of this study documented that data on the degradates for cyanazine are critical for understanding its fate and transport in the hydrologic system. Furthermore, the prevalence of the chlorinated degradates of cyanazine found in groundwater suggests that to accurately determine the overall effect on human health and the environment from cyanazine its degradates should also be considered. In addition, because CYTOT was found in 57.6% of the samples collected from alluvial aquifers, about 2-5 times more frequently than the other major aquifer types (glacial drift, bedrock/karst, bedrock/nonkarst) under investigation, this finding has long-term implications for the occurrence of CYTOT in streams. It is anticipated that low-level concentrations of CYTOT will continue to be detected in streams for years after the use of cyanazine has terminated (scheduled for the year 2000 in the United States), primarily through its movement from groundwater into streams during base-flow conditions.</p>","language":"English","publisher":"American Chemical Society","doi":"10.1021/es001520x","issn":"0013936X","usgsCitation":"Kolpin, D., Thurman, E., and Linhart, S.M., 2001, Occurrence of cyanazine compounds in groundwater: Degradates more prevalent than the parent compound: Environmental Science & Technology, v. 35, no. 6, p. 1217-1222, https://doi.org/10.1021/es001520x.","productDescription":"6 p.","startPage":"1217","endPage":"1222","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":351,"text":"Iowa Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology 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,{"id":1016219,"text":"1016219 - 2001 - Western pond turtles (Clemmys marmorata) in the central valley of California: Status and population structure","interactions":[],"lastModifiedDate":"2017-11-21T16:45:29","indexId":"1016219","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3643,"text":"Transactions of the Western Section of the Wildlife Society","active":true,"publicationSubtype":{"id":10}},"title":"Western pond turtles (Clemmys marmorata) in the central valley of California: Status and population structure","docAbstract":"A sensitive resettable odometer reading to 0.01 mile facilitated censusing breeding male redwinged blackbirds (Agelaius phoeniceus) from a vehicle. Territorial males along roadsides were 'marked' with recorded mileage readings rather than with landmarks of the types employed by Hewitt for censuses based on the Lincoln index principle. Sensitive odometers that can be reset have many potential uses in wildlife investigations.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Transactions of the Western Section of the Wildlife Society","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Germano, D.J., and Bury, R.B., 2001, Western pond turtles (Clemmys marmorata) in the central valley of California: Status and population structure: Transactions of the Western Section of the Wildlife Society, v. 37, p. 22-36.","productDescription":"p. 22-36","startPage":"22","endPage":"36","numberOfPages":"15","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":133047,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":15005,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://www.tws-west.org/transactions/Germano%20Bury.pdf","linkFileType":{"id":1,"text":"pdf"},"description":"2223.000000000000000"}],"volume":"37","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e48c8e4b07f02db541649","contributors":{"authors":[{"text":"Germano, David J.","contributorId":91815,"corporation":false,"usgs":true,"family":"Germano","given":"David","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":323756,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bury, R. Bruce buryb@usgs.gov","contributorId":3660,"corporation":false,"usgs":true,"family":"Bury","given":"R.","email":"buryb@usgs.gov","middleInitial":"Bruce","affiliations":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"preferred":false,"id":323755,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1001890,"text":"1001890 - 2001 - Early post-fire succession in California chaparral: Changes in diversity, density, cover, and biomass","interactions":[],"lastModifiedDate":"2022-10-07T18:11:42.822222","indexId":"1001890","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1461,"text":"Ecological Research","active":true,"publicationSubtype":{"id":10}},"title":"Early post-fire succession in California chaparral: Changes in diversity, density, cover, and biomass","docAbstract":"For four consecutive years, following the fires in November 1993, temporal variations in species richness, cover and biomass of component plant groups in early post-fire chaparral succession were monitored on different aspects at the Stunt Ranch Santa Monica Mountains Reserve, southern California. Plant groups were categorized based on growth form, life form, ability to fix nitrogen, geographic origin and regeneration strategies. North-facing slopes exhibited higher species richness, higher species turnover rate over time and faster vegetation recovery in terms of biomass accumulation and return to pre-fire species composition. This was probably due to higher species richness and biomass of nitrogen-fixing species found on north-facing slopes in comparison to south-facing slopes. On both north- and south-facing slopes, annuals had the highest species turnover rate, followed by herbaceous perennials and shrubs. In the first four post-fire years, annual species were the largest floristic group, but herbaceous perennials and shrubs were the major contributors to community biomass. Nitrogen-fixing species and exotics contributed significantly to early post-fire community structure. Although the general trends in post-fire succession are clear in terms of temporal changes in the relative proportions of different plant groups, environmental variation and the nature of plant life histories of component species, especially dominant species, could alter such trends significantly.","language":"English","publisher":"Ecological Society of Japan","doi":"10.1046/j.1440-1703.2001.00410.x","usgsCitation":"Guo, Q., 2001, Early post-fire succession in California chaparral: Changes in diversity, density, cover, and biomass: Ecological Research, v. 16, no. 3, p. 471-485, https://doi.org/10.1046/j.1440-1703.2001.00410.x.","productDescription":"15 p.","startPage":"471","endPage":"485","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":128590,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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  34.099438677166155\n            ],\n            [\n              -118.65895271301271,\n              34.08856373916827\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"16","issue":"3","noUsgsAuthors":false,"publicationDate":"2001-12-21","publicationStatus":"PW","scienceBaseUri":"4f4e4a54e4b07f02db62c1ff","contributors":{"authors":[{"text":"Guo, Q.","contributorId":67039,"corporation":false,"usgs":true,"family":"Guo","given":"Q.","email":"","affiliations":[],"preferred":false,"id":312036,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1016599,"text":"1016599 - 2001 - [Book review] Wetlands for the future: contributions from INTECOL's V International Wetlands Confernce, edited by A. J. McComb and J. A. Davis","interactions":[],"lastModifiedDate":"2017-10-20T10:06:10","indexId":"1016599","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3323,"text":"SIL News","active":true,"publicationSubtype":{"id":10}},"title":"[Book review] Wetlands for the future: contributions from INTECOL's V International Wetlands Confernce, edited by A. J. McComb and J. A. Davis","docAbstract":"Review of: Wetlands for the Future: Contributions from INTECOL’s V International Wetlands Conference. Edited by A.J. McComb and J.A. Davis. 780 pp., 1998. Gleneagles Publishing, PO Box 41, Glen Osmond, SA 5064, Adelaide, Australia. ISBN: 1 87553 04 5. AUS $90.00.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"SIL News","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"International Society of Limnology","publisherLocation":"http://www.limnology.org","usgsCitation":"Euliss, N., 2001, [Book review] Wetlands for the future: contributions from INTECOL's V International Wetlands Confernce, edited by A. J. McComb and J. A. Davis: SIL News, v. 33, p. 17-17.","productDescription":"1 p.","startPage":"17","endPage":"17","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":132976,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":11891,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://www.limnology.org/news/silnews33.pdf","linkFileType":{"id":1,"text":"pdf"}}],"volume":"33","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e1e4b07f02db5e499c","contributors":{"authors":[{"text":"Euliss, N.H. Jr.","contributorId":54917,"corporation":false,"usgs":true,"family":"Euliss","given":"N.H.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":324471,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1016046,"text":"1016046 - 2001 - Ramet spacing of Elymus lanceolatus (thickspike wheatgrass) in response to neighbour density","interactions":[],"lastModifiedDate":"2022-08-24T16:40:37.294689","indexId":"1016046","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1167,"text":"Canadian Journal of Botany","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Ramet spacing of <i>Elymus lanceolatus</i> (thickspike wheatgrass) in response to neighbour density","title":"Ramet spacing of Elymus lanceolatus (thickspike wheatgrass) in response to neighbour density","docAbstract":"<p><span>Many plants exploit patchy resources through clonal foraging. Plants established in field plots were used to determine if&nbsp;</span><i>Elymus lanceolatus</i><span>&nbsp;ssp.&nbsp;</span><i>lanceolatus</i><span>&nbsp;(Scribner et J.G. Smith) Gould (thickspike wheatgrass) showed a clonal foraging response to neighbour densities, as it had previously shown to patchy soil nutrients. Neighbours consisted of the rhizomatous&nbsp;</span><i>E. lanceolatus</i><span>&nbsp;ssp.&nbsp;</span><i>lanceolatus</i><span>&nbsp;and the bunchgrass&nbsp;</span><i>Elymus lanceolatus</i><span>&nbsp;ssp.&nbsp;</span><i>wawawaiensis</i><span>&nbsp;(Scribner et Gould) J.R. Carlson et D.R. Dewey (proposed name), which are both native to the semiarid western U.S.A., and their ratios as well as total densities varied. Rather than an increase in spacing of exploratory ramets at high densities, as expected with clonal foraging, there was a decrease in spacing in both years of the experiment. Fewer target plants produced exploratory ramets at higher densities only in the second year. These reductions in exploratory clonal growth at higher neighbour densities, which were opposite to&nbsp;</span><i>E</i><span>.&nbsp;</span><i>lanceolatus</i><span>&nbsp;ssp.&nbsp;</span><i>lanceolatus</i><span>' response to low-resource patches, occurred perhaps because soil resource levels were too low overall to support rhizome production, and this condition was more pronounced in the second year. Physical resistance from neighbour roots perhaps also reduced rhizome production. However, rhizome growth may not be beneficial in such cases, and plants may be adapted to produce exploratory rhizomes only when some high-resource patches are encountered by the clone.</span></p>","language":"English","publisher":"Canadian Science Publishing","doi":"10.1139/b01-091","usgsCitation":"Humphrey, L.D., and Pyke, D.A., 2001, Ramet spacing of Elymus lanceolatus (thickspike wheatgrass) in response to neighbour density: Canadian Journal of Botany, v. 79, no. 9, p. 1122-1126, https://doi.org/10.1139/b01-091.","productDescription":"5 p.","startPage":"1122","endPage":"1126","numberOfPages":"5","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":134085,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"79","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a80e4b07f02db649626","contributors":{"authors":[{"text":"Humphrey, L. David","contributorId":49320,"corporation":false,"usgs":false,"family":"Humphrey","given":"L.","email":"","middleInitial":"David","affiliations":[],"preferred":false,"id":323566,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pyke, David A. 0000-0002-4578-8335 david_a_pyke@usgs.gov","orcid":"https://orcid.org/0000-0002-4578-8335","contributorId":3118,"corporation":false,"usgs":true,"family":"Pyke","given":"David","email":"david_a_pyke@usgs.gov","middleInitial":"A.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true},{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"preferred":true,"id":323565,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70023084,"text":"70023084 - 2001 - Tomographic inversion of P-wave velocity and Q structures beneath the Kirishima volcanic complex, Southern Japan, based on finite difference calculations of complex traveltimes","interactions":[],"lastModifiedDate":"2012-03-12T17:20:40","indexId":"70023084","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1803,"text":"Geophysical Journal International","active":true,"publicationSubtype":{"id":10}},"title":"Tomographic inversion of P-wave velocity and Q structures beneath the Kirishima volcanic complex, Southern Japan, based on finite difference calculations of complex traveltimes","docAbstract":"We estimate the P-wave velocity and attenuation structures beneath the Kirishima volcanic complex, southern Japan, by inverting the complex traveltimes (arrival times and pulse widths) of waveform data obtained during an active seismic experiment conducted in 1994. In this experiment, six 200-250 kg shots were recorded at 163 temporary seismic stations deployed on the volcanic complex. We use first-arrival times for the shots, which were hand-measured interactively. The waveform data are Fourier transformed into the frequency domain and analysed using a new method based on autoregressive modelling of complex decaying oscillations in the frequency domain to determine pulse widths for the first-arrival phases. A non-linear inversion method is used to invert 893 first-arrival times and 325 pulse widths to estimate the velocity and attenuation structures of the volcanic complex. Wavefronts for the inversion are calculated with a finite difference method based on the Eikonal equation, which is well suited to estimating the complex traveltimes for the structures of the Kirishima volcano complex, where large structural heterogeneities are expected. The attenuation structure is derived using ray paths derived from the velocity structure. We obtain 3-D velocity and attenuation structures down to 1.5 and 0.5 km below sea level, respectively. High-velocity pipe-like structures with correspondingly low attenuation are found under the summit craters. These pipe-like structures are interpreted as remnant conduits of solidified magma. No evidence of a shallow magma chamber is visible in the tomographic images.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Journal International","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1046/j.1365-246X.2001.00491.x","issn":"0956540X","usgsCitation":"Tomatsu, T., Kumagai, H., and Dawson, P., 2001, Tomographic inversion of P-wave velocity and Q structures beneath the Kirishima volcanic complex, Southern Japan, based on finite difference calculations of complex traveltimes: Geophysical Journal International, v. 146, no. 3, p. 781-794, https://doi.org/10.1046/j.1365-246X.2001.00491.x.","startPage":"781","endPage":"794","numberOfPages":"14","costCenters":[],"links":[{"id":478878,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1046/j.1365-246x.2001.00491.x","text":"Publisher Index Page"},{"id":233912,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":208277,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1046/j.1365-246X.2001.00491.x"}],"volume":"146","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb435e4b08c986b32624a","contributors":{"authors":[{"text":"Tomatsu, T.","contributorId":80869,"corporation":false,"usgs":true,"family":"Tomatsu","given":"T.","email":"","affiliations":[],"preferred":false,"id":396082,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kumagai, Hiroyuki","contributorId":71337,"corporation":false,"usgs":false,"family":"Kumagai","given":"Hiroyuki","email":"","affiliations":[],"preferred":false,"id":396080,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dawson, P.B.","contributorId":75934,"corporation":false,"usgs":true,"family":"Dawson","given":"P.B.","email":"","affiliations":[],"preferred":false,"id":396081,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":1016194,"text":"1016194 - 2001 - Unusual bacterioplankton community structure in ultra-oligotrophic Crater Lake","interactions":[],"lastModifiedDate":"2012-02-02T00:04:49","indexId":"1016194","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2620,"text":"Limnology and Oceanography","active":true,"publicationSubtype":{"id":10}},"title":"Unusual bacterioplankton community structure in ultra-oligotrophic Crater Lake","docAbstract":"The bacterioplankton assemblage in Crater Lake, Oregon (U.S.A.), is different from communities found in other oxygenated lakes, as demonstrated by four small subunit ribosomal ribonucleic acid (SSU rRNA) gene clone libraries and oligonucleotide probe hybridization to RNA from lake water. Populations in the euphotic zone of this deep (589 m), oligotrophic caldera lake are dominated by two phylogenetic clusters of currently uncultivated bacteria: CL120-10, a newly identified cluster in the verrucomicrobiales, and ACK4 actinomycetes, known as a minor constituent of bacterioplankton in other lakes. Deep-water populations at 300 and 500 m are dominated by a different pair of uncultivated taxa: CL500-11, a novel cluster in the green nonsulfur bacteria, and group I marine crenarchaeota. b-Proteobacteria, dominant in most other freshwater environments, are relatively rare in Crater Lake (<=16% of nonchloroplast bacterial rRNA at all depths). Other taxa identified in Crater Lake libraries include a newly identified candidate bacterial division, ABY1, and a newly identified subcluster, CL0-1, within candidate division OP10. Probe analyses confirmed vertical stratification of several microbial groups, similar to patterns observed in open-ocean systems. Additional similarities between Crater Lake and ocean microbial populations include aphotic zone dominance of group I marine crenarchaeota and green nonsulfur bacteria. Comparison of Crater Lake to other lakes studied by rRNA methods suggests that selective factors structuring Crater Lake bacterioplankton populations may include low concentrations of available trace metals and dissolved organic matter, chemistry of infiltrating hydrothermal waters, and irradiation by high levels of ultraviolet light.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Limnology and Oceanography","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Urbach, E., Vergin, K.L., and Morse, A., 2001, Unusual bacterioplankton community structure in ultra-oligotrophic Crater Lake: Limnology and Oceanography, v. 46, no. 3, p. 557-572.","productDescription":"p. 557-572","startPage":"557","endPage":"572","numberOfPages":"16","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":134487,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"46","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a25e4b07f02db60ec65","contributors":{"authors":[{"text":"Urbach, Ena","contributorId":93018,"corporation":false,"usgs":true,"family":"Urbach","given":"Ena","email":"","affiliations":[],"preferred":false,"id":323705,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Vergin, Kevin L.","contributorId":11186,"corporation":false,"usgs":true,"family":"Vergin","given":"Kevin","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":323704,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Morse, Ariel","contributorId":106853,"corporation":false,"usgs":true,"family":"Morse","given":"Ariel","email":"","affiliations":[],"preferred":false,"id":323706,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":1016552,"text":"1016552 - 2001 - Book review: Research techniques in animal ecology: Controversies and consequences, by Luigi Boitani and Todd K. Fuller","interactions":[],"lastModifiedDate":"2022-12-22T16:49:28.786832","indexId":"1016552","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Book review: Research techniques in animal ecology: Controversies and consequences, by Luigi Boitani and Todd K. Fuller","docAbstract":"Review of: Research Techniques in Animal Ecology: Controversies and Consequences. Edited by Luigi Boitani and Todd K. Fuller. Columbia University Press, New York, USA. 2000. xxxii + 442 pp., index. $75.00, ISBN 0231113404 (cloth); $32.00, ISBN 0231113412 (paper).","language":"English","publisher":"Wiley","doi":"10.2307/3803113","usgsCitation":"Johnson, D.H., 2001, Book review: Research techniques in animal ecology: Controversies and consequences, by Luigi Boitani and Todd K. Fuller: Journal of Wildlife Management, v. 65, no. 3, p. 599-601, https://doi.org/10.2307/3803113.","productDescription":"3 p.","startPage":"599","endPage":"601","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":132631,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"65","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a54e4b07f02db62c5f9","contributors":{"authors":[{"text":"Johnson, Douglas H. 0000-0002-7778-6641","orcid":"https://orcid.org/0000-0002-7778-6641","contributorId":70327,"corporation":false,"usgs":true,"family":"Johnson","given":"Douglas","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":324368,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1016562,"text":"1016562 - 2001 - Impact of the Conservation Reserve Program on duck recruitment in the U.S. Prairie Pothole Region","interactions":[],"lastModifiedDate":"2018-01-05T10:17:51","indexId":"1016562","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Impact of the Conservation Reserve Program on duck recruitment in the U.S. Prairie Pothole Region","docAbstract":"The U.S. Department of Agriculture (USDA)'s Conservation Reserve Program (CRP) resulted in the conversion of about 1.9 million ha of cropland to perennial grass cover in the Prairie Pothole Region of North Dakota, South Dakota, and northeastern Montana by 1992. Many wildlife managers believed this cover would provide benefits to wildlife, including upland nesting ducks. During 1992-1995, we evaluated success of 5 duck species nesting in CRP fields and nearby Waterfowl Production Areas (WPA) throughout the region. We examined relationships between daily survival rates (DSR) of duck nests in CRP cover and landscape-level habitat and population parameters. We computed DSR of duck nests in other major cover types in our study area from data collected during 1980-1984 (pre-CRP) and 1990-1994 (CRP) periods. We then applied recruitment models to estimate duck production in our study area during peak CRP years (1992-1997) and compared these results with those that simulated the scenario in which cropland was in place of CRP cover (i.e., the CRP had not occurred). DSR were higher in all habitats combined during the CRP period compared to the pre-CRP period. Regressions of DSR in CRP cover on the percent of each study plot in perennial cover and geographic location were significant (P < 0.01) for 4 of 5 duck (Anas spp.) species. Estimated nest success and recruitment rates for the 5 species combined during 1992-1997 were 46% and 30% higher, respectively, with CRP cover on the landscape compared to a scenario where we simulated cropland in place of CRP. Our model estimated an additional 12.4 million recruits from our study area to the fall flight as a consequence of the CRP during 1992-1997. Our results document benefits to 5 duck species in the northern plains associated with a farm program that provided financial incentives to landowners for planting undisturbed grass cover as an alternative to annual crops.","language":"English","publisher":"Wildlife Society","doi":"10.2307/3803027","usgsCitation":"Reynolds, R.E., Shaffer, T.L., Renner, R.W., Newton, W.E., and Batt, B.D., 2001, Impact of the Conservation Reserve Program on duck recruitment in the U.S. Prairie Pothole Region: Journal of Wildlife Management, v. 65, no. 4, p. 765-780, https://doi.org/10.2307/3803027.","productDescription":"15 p.","startPage":"765","endPage":"780","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":129451,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"65","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a04e4b07f02db5f8621","contributors":{"authors":[{"text":"Reynolds, Ronald E.","contributorId":174572,"corporation":false,"usgs":false,"family":"Reynolds","given":"Ronald","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":324380,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shaffer, Terry L. 0000-0001-6950-8951 tshaffer@usgs.gov","orcid":"https://orcid.org/0000-0001-6950-8951","contributorId":3192,"corporation":false,"usgs":true,"family":"Shaffer","given":"Terry","email":"tshaffer@usgs.gov","middleInitial":"L.","affiliations":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":324382,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Renner, Randy W.","contributorId":174573,"corporation":false,"usgs":false,"family":"Renner","given":"Randy","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":324381,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Newton, Wesley E. 0000-0002-1377-043X wnewton@usgs.gov","orcid":"https://orcid.org/0000-0002-1377-043X","contributorId":3661,"corporation":false,"usgs":true,"family":"Newton","given":"Wesley","email":"wnewton@usgs.gov","middleInitial":"E.","affiliations":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":324379,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Batt, Bruce D.J.","contributorId":113404,"corporation":false,"usgs":false,"family":"Batt","given":"Bruce","email":"","middleInitial":"D.J.","affiliations":[],"preferred":false,"id":324383,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70023788,"text":"70023788 - 2001 - Grassland birds associated with agricultural riparian practices in southwestern Wisconsin","interactions":[],"lastModifiedDate":"2022-12-20T17:25:32.885076","indexId":"70023788","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2441,"text":"Journal of Range Management","active":true,"publicationSubtype":{"id":10}},"title":"Grassland birds associated with agricultural riparian practices in southwestern Wisconsin","docAbstract":"<p>Rotational grazing has been proposed as a Best Management Practice (BMP) for minimizing runoff in Wisconsin agricultural riparian areas. The influence of this land management practice on grassland birds has not been evaluated in relation to more traditional agricultural land management systems in Midwestern riparian areas. This study compared the grassland bird community in riparian areas in Wisconsin that were rotationally grazed to 2 common land use practices along streams in Wisconsin: continuously grazed pastures and rowcrop fields with 10-m-wide ungrazed buffer strips located along the stream. We calculated total number of birds, the Berger-Parker Index of Dominance, and number of birds ha-1 for each site. Vegetation variables used were height-density, litter depth, and percent bare ground. Bird species richness, species dominance, and density did not differ among land use types. In contrast, grassland bird species of management concern [Savannah Sparrow (<i>Passerculus sandwichensis</i> Gmelin), Eastern Meadowlark (<i>Sturnella magna</i> L.), and Bobolink (<i>Dolichonyx oryzivorus</i> L.)] were found on continuous and rotational pastures but very rarely or never occurred on buffer strips. Contrary to previous research, however, rotationally grazed pastures did not support more of these species than continuously grazed pastures. Bird density was related to vegetation structure, with higher densities found on sites with deeper litter. Within the pasture land use types, there were no consistent differences between species richness and density near the stream (&lt;10 m) and away (&gt;10 m).</p>","language":"English","publisher":"Allen Press","doi":"10.2307/4003583","issn":"0022409X","usgsCitation":"Renfrew, R., and Ribic, C., 2001, Grassland birds associated with agricultural riparian practices in southwestern Wisconsin: Journal of Range Management, v. 54, no. 5, p. 546-552, https://doi.org/10.2307/4003583.","productDescription":"7 p.","startPage":"546","endPage":"552","costCenters":[],"links":[{"id":478904,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/10150/643589","text":"External Repository"},{"id":232669,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wisconsin","otherGeospatial":"Driftless Area","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -92.16575857443152,\n              44.43684199315811\n            ],\n            [\n              -91.97899266246743,\n              44.338703898316936\n            ],\n            [\n              -91.90758152965512,\n              44.19709561205261\n            ],\n            [\n              -91.77574559215492,\n              44.12222036921074\n            ],\n            [\n              -91.60545584005668,\n              44.015654996716535\n            ],\n            [\n              -91.41319509786928,\n              43.960323483775056\n            ],\n            [\n              -91.27586599630685,\n              43.76625703858235\n            ],\n            [\n              -91.29234548849422,\n              43.67097361600477\n            ],\n            [\n              -91.2538933400566,\n              43.464006462514334\n            ],\n            [\n              -91.22093435568188,\n              43.408163044071415\n            ],\n            [\n              -91.22093435568188,\n              43.34427889424853\n            ],\n            [\n              -91.15501638693179,\n              43.328297341034215\n            ],\n            [\n              -91.08360525411945,\n              43.25232752699745\n            ],\n            [\n              -91.1934685353694,\n              43.136190672269066\n            ],\n            [\n              -91.14952322286955,\n              42.91532417602218\n            ],\n            [\n              -91.10557791036905,\n              42.867029530650086\n            ],\n            [\n              -91.07811209005656,\n              42.75419497954971\n            ],\n            [\n              -90.99022146505688,\n              42.68558787126665\n            ],\n            [\n              -90.72105642599425,\n              42.620947183876154\n            ],\n            [\n              -90.66063162130705,\n              42.50766433935169\n            ],\n            [\n              -89.29832693380656,\n              42.49956483688837\n            ],\n            [\n              -89.29832693380656,\n              43.128173087541285\n            ],\n            [\n              -89.4081902150565,\n              43.47596620436465\n            ],\n            [\n              -89.50706716818199,\n              44.19709534748961\n            ],\n            [\n              -89.78721853536908,\n              44.43291961802271\n            ],\n            [\n              -90.15526052755652,\n              44.61307637535003\n            ],\n            [\n              -90.68260427755665,\n              44.81995752031699\n            ],\n            [\n              -90.95726248068216,\n              44.90561547615778\n            ],\n            [\n              -91.58348318380709,\n              44.90172469759921\n            ],\n            [\n              -92.05589529318158,\n              44.69123162466923\n            ],\n            [\n              -92.16575857443152,\n              44.43684199315811\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"54","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a29e6e4b0c8380cd5ad1f","contributors":{"authors":[{"text":"Renfrew, R.B.","contributorId":104671,"corporation":false,"usgs":true,"family":"Renfrew","given":"R.B.","email":"","affiliations":[],"preferred":false,"id":398846,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ribic, C. 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,{"id":1016039,"text":"1016039 - 2001 - Ploidy race distributions since the Last Glacial Maximum in the North American desert shrub, Larrea tridentata","interactions":[],"lastModifiedDate":"2022-10-14T18:48:44.136466","indexId":"1016039","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1839,"text":"Global Ecology and Biogeography","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Ploidy race distributions since the Last Glacial Maximum in the North American desert shrub, <i>Larrea tridentata</i>","title":"Ploidy race distributions since the Last Glacial Maximum in the North American desert shrub, Larrea tridentata","docAbstract":"<ol class=\"rlist hanging\"><li>A classic biogeographic pattern is the alignment of diploid, tetraploid and hexaploid races of creosote bush (<i>Larrea tridentata</i>) across the Chihuahuan, Sonoran and Mohave Deserts of western North America. We used statistically robust differences in guard cell size of modern plants and fossil leaves from packrat middens to map current and past distributions of these ploidy races since the Last Glacial Maximum (LGM).</li><li>Glacial/early Holocene (26–10&nbsp;<sup>14</sup>C&nbsp;kyr&nbsp;<span class=\"smallCaps\">bp</span>&nbsp;or thousands of radiocarbon years before present) populations included diploids along the lower Rio Grande of west Texas, 650&nbsp;km removed from sympatric diploids and tetraploids in the lower Colorado River Basin of south-eastern California/south-western Arizona. Diploids migrated slowly from lower Rio Grande refugia with expansion into the northern Chihuahuan Desert sites forestalled until after ~4.0&nbsp;<sup>14</sup>C kyr&nbsp;<span class=\"smallCaps\">bp</span>. Tetraploids expanded from the lower Colorado River Basin into the northern limits of the Sonoran Desert in central Arizona by 6.4&nbsp;<sup>14</sup>C&nbsp;kyr&nbsp;<span class=\"smallCaps\">bp</span>. Hexaploids appeared by 8.5&nbsp;<sup>14</sup>C kyr&nbsp;<span class=\"smallCaps\">bp</span>&nbsp;in the lower Colorado River Basin, reaching their northernmost limits (~37°N) in the Mohave Desert between 5.6 and 3.9&nbsp;<sup>14</sup>C&nbsp;kyr&nbsp;<span class=\"smallCaps\">bp</span>.</li><li>Modern diploid isolates may have resulted from both vicariant and dispersal events. In central Baja California and the lower Colorado River Basin, modern diploids probably originated from relict populations near glacial refugia. Founder events in the middle and late Holocene established diploid outposts on isolated limestone outcrops in areas of central and southern Arizona dominated by tetraploid populations.</li><li><span id=\"_mce_caret\" data-mce-bogus=\"1\" data-mce-type=\"format-caret\"><span class=\"number\"></span></span>Geographic alignment of the three ploidy races along the modern gradient of increasingly drier and hotter summers is clearly a postglacial phenomenon, but evolution of both higher ploidy races must have happened before the Holocene. The exact timing and mechanism of polyploidy evolution in creosote bush remains a matter of conjecture.</li></ol>","language":"English","publisher":"Wiley","doi":"10.1046/j.1466-822X.2001.00254.x","usgsCitation":"Hunter, K.L., Betancourt, J.L., Riddle, B., Van Devender, T.R., Cole, K., and Spaulding, W., 2001, Ploidy race distributions since the Last Glacial Maximum in the North American desert shrub, Larrea tridentata: Global Ecology and Biogeography, v. 10, no. 5, p. 521-533, https://doi.org/10.1046/j.1466-822X.2001.00254.x.","productDescription":"13 p.","startPage":"521","endPage":"533","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":134099,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Mexico, United States","state":"Arizona, Baja California, Baja California Sur, California, Chihuahua, Coahuila, Nevada, New Mexico, Nuevo León, Sonora, 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Center","active":true,"usgs":true}],"preferred":true,"id":323542,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Riddle, Brett R.","contributorId":93016,"corporation":false,"usgs":true,"family":"Riddle","given":"Brett R.","affiliations":[],"preferred":false,"id":323547,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Van Devender, Thomas R.","contributorId":84301,"corporation":false,"usgs":true,"family":"Van Devender","given":"Thomas","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":323545,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Cole, K.L.","contributorId":87507,"corporation":false,"usgs":true,"family":"Cole","given":"K.L.","email":"","affiliations":[],"preferred":false,"id":323546,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Spaulding, W. G.","contributorId":20704,"corporation":false,"usgs":true,"family":"Spaulding","given":"W. G.","affiliations":[],"preferred":false,"id":323543,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":1016044,"text":"1016044 - 2001 - Space-time modelling of lightning-caused ignitions in the Blue Mountains, Oregon","interactions":[],"lastModifiedDate":"2012-02-02T00:04:52","indexId":"1016044","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1170,"text":"Canadian Journal of Forest Research","active":true,"publicationSubtype":{"id":10}},"title":"Space-time modelling of lightning-caused ignitions in the Blue Mountains, Oregon","docAbstract":"Generalized linear mixed models (GLMM) were used to study the effect of vegetation cover, elevation, slope, and precipitation on the probability of ignition in the Blue Mountains, Oregon, and to estimate the probability of ignition occurrence at different locations in space and in time. Data on starting location of lightning-caused ignitions in the Blue Mountains between April 1986 and September 1993 constituted the base for the analysis. The study area was divided into a pixela??time array. For each pixela??time location we associated a value of 1 if at least one ignition occurred and 0 otherwise. Covariate information for each pixel was obtained using a geographic information system. The GLMMs were fitted in a Bayesian framework. Higher ignition probabilities were associated with the following cover types: subalpine herbaceous, alpine tundra, lodgepole pine (Pinus contorta Dougl. ex Loud.), whitebark pine (Pinus albicaulis Engelm.), Engelmann spruce (Picea engelmannii Parry ex Engelm.), subalpine fir (Abies lasiocarpa (Hook.) Nutt.), and grand fir (Abies grandis (Dougl.) Lindl.). Within each vegetation type, higher ignition probabilities occurred at lower elevations. Additionally, ignition probabilities are lower in the northern and southern extremes of the Blue Mountains. The GLMM procedure used here is suitable for analysing ignition occurrence in other forested regions where probabilities of ignition are highly variable because of a spatially complex biophysical environment.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Canadian Journal of Forest Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Diaz-Avalos, C., Peterson, D.L., Alvarado, E., Ferguson, S.A., and Besag, J.E., 2001, Space-time modelling of lightning-caused ignitions in the Blue Mountains, Oregon: Canadian Journal of Forest Research, v. 31, no. 9, p. 1579-1593.","productDescription":"p. 1579-1593","startPage":"1579","endPage":"1593","numberOfPages":"15","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":135143,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"31","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e4e4b07f02db5e66f9","contributors":{"authors":[{"text":"Diaz-Avalos, Carlos","contributorId":19133,"corporation":false,"usgs":true,"family":"Diaz-Avalos","given":"Carlos","email":"","affiliations":[],"preferred":false,"id":323558,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Peterson, D. L.","contributorId":36484,"corporation":false,"usgs":true,"family":"Peterson","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":323560,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Alvarado, Ernesto","contributorId":63368,"corporation":false,"usgs":true,"family":"Alvarado","given":"Ernesto","email":"","affiliations":[],"preferred":false,"id":323561,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ferguson, Sue A.","contributorId":23914,"corporation":false,"usgs":true,"family":"Ferguson","given":"Sue","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":323559,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Besag, Julian E.","contributorId":71524,"corporation":false,"usgs":true,"family":"Besag","given":"Julian","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":323562,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70022984,"text":"70022984 - 2001 - Assessment of reproductive effects in largemouth bass (Micropterus salmoides) exposed to bleached/unbleached kraft mill effluents","interactions":[],"lastModifiedDate":"2012-03-12T17:20:06","indexId":"70022984","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":887,"text":"Archives of Environmental Contamination and Toxicology","active":true,"publicationSubtype":{"id":10}},"title":"Assessment of reproductive effects in largemouth bass (Micropterus salmoides) exposed to bleached/unbleached kraft mill effluents","docAbstract":"This study evaluated the potential effects of different concentrations of bleached/unbleached kraft mill effluent (B/UKME) on several reproductive endpoints in adult largemouth bass (Micropterus salmoides). The kraft mill studied produces a 50/50 mix of bleached/unbleached market pulp with an estimated release of 36 million gal of efffluent/day. Bleaching sequences were C90d10EopHDp and CEHD for softwood (pines) and hardwoods (mainly tupelo, gums, magnolia, and water oaks), respectively. Bass were exposed to different effluent concentrations (0 [controls, exposed to well water], 10, 20, 40, or 80%) for either 28 or 56 days. At the end of each exposure period, fish were euthanized, gonads collected for histological evaluation and determination of gonadosomatic index (GSI), and plasma was analyzed for 17??-estradiol, 11-ketotestosterone, and vitellogenin (VTG). Largemouth bass exposed to B/UKME responded with changes at the biochemical level (decline in sex steroids in both sexes and VTG in females) that were usually translated into tissue/organ-level responses (declines in GSI in both sexes and in ovarian development in females). Although most of these responses occurred after exposing fish to 40% B/UKME concentrations or greater, some were observed after exposures to 20% B/UKME. These threshold concentrations fall within the 60% average yearly concentration of effluent that exists in the stream near the point of discharge (Rice Creek), but are above the <10% effluent concentration present in the St. Johns River. The chemical(s) responsible for such changes as well as their mode(s) of action remain unknown at this time.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Archives of Environmental Contamination and Toxicology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s002440010274","issn":"00904341","usgsCitation":"Sepulveda, M.S., Ruessler, D.S., Denslow, N., Holm, S.E., Schoeb, T., and Gross, T., 2001, Assessment of reproductive effects in largemouth bass (Micropterus salmoides) exposed to bleached/unbleached kraft mill effluents: Archives of Environmental Contamination and Toxicology, v. 41, no. 4, p. 475-482, https://doi.org/10.1007/s002440010274.","startPage":"475","endPage":"482","numberOfPages":"8","costCenters":[],"links":[{"id":208087,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s002440010274"},{"id":233506,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"41","issue":"4","noUsgsAuthors":false,"publicationDate":"2014-02-14","publicationStatus":"PW","scienceBaseUri":"5059ee50e4b0c8380cd49cc8","contributors":{"authors":[{"text":"Sepulveda, M. S.","contributorId":99918,"corporation":false,"usgs":false,"family":"Sepulveda","given":"M.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":395693,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ruessler, D. S.","contributorId":22292,"corporation":false,"usgs":true,"family":"Ruessler","given":"D.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":395689,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Denslow, N. D.","contributorId":101606,"corporation":false,"usgs":false,"family":"Denslow","given":"N. D.","affiliations":[],"preferred":false,"id":395694,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Holm, S. E.","contributorId":49315,"corporation":false,"usgs":false,"family":"Holm","given":"S.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":395690,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Schoeb, T. R.","contributorId":73550,"corporation":false,"usgs":false,"family":"Schoeb","given":"T. R.","affiliations":[],"preferred":false,"id":395691,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Gross, T. S.","contributorId":95828,"corporation":false,"usgs":true,"family":"Gross","given":"T. S.","affiliations":[],"preferred":false,"id":395692,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70023672,"text":"70023672 - 2001 - Landsat 7 thermal-IR image sharpening using an artificial neural network and sensor model","interactions":[],"lastModifiedDate":"2012-03-12T17:20:11","indexId":"70023672","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Landsat 7 thermal-IR image sharpening using an artificial neural network and sensor model","docAbstract":"The enhanced thematic mapper (plus) (ETM+) instrument on Landsat 7 shares the same basic design as the TM sensors on Landsats 4 and 5, with some significant improvements. In common are six multispectral bands with a 30-m ground-projected instantaneous field of view (GIFOV). However, the thermaL-IR (TIR) band now has a 60-m GIFOV, instead of 120-m. Also, a 15-m panchromatic band has been added. The artificial neural network (NN) image sharpening method described here uses data from the higher spatial resolution ETM+ bands to enhance (sharpen) the spatial resolution of the TIR imagery. It is based on an assumed correlation over multiple scales of resolution, between image edge contrast patterns in the TIR band and several other spectral bands. A multilayer, feedforward NN is trained to approximate TIR data at 60m, given degraded (from 30-m to 60-m) spatial resolution input from spectral bands 7, 5, and 2. After training, the NN output for full-resolution input generates an approximation of a TIR image at 30-m resolution. Two methods are used to degrade the spatial resolution of the imagery used for NN training, and the corresponding sharpening results are compared. One degradation method uses a published sensor transfer function (TF) for Landsat 5 to simulate sensor coarser resolution imagery from higher resolution imagery. For comparison, the second degradation method is simply Gaussian low pass filtering and subsampling, wherein the Gaussian filter approximates the full width at half maximum amplitude characteristics of the TF-based spatial filter. Two fixed-size NNs (that is, number of weights and processing elements) were trained separately with the degraded resolution data, and the sharpening results compared. The comparison evaluates the relative influence of the degradation technique employed and whether or not it is desirable to incorporate a sensor TF model. Preliminary results indicate some improvements for the sensor model-based technique. Further evaluation using a higher resolution reference image and strict application of sensor model to data is recommended.","largerWorkTitle":"Proceedings of SPIE - The International Society for Optical Engineering","conferenceTitle":"Visual Information Processing X","conferenceDate":"19 April 2001 through 20 April 2001","conferenceLocation":"Orlando,FL","language":"English","doi":"10.1117/12.438256","issn":"0277786X","usgsCitation":"Lemeshewsky, G., and Schowengerdt, R., 2001, Landsat 7 thermal-IR image sharpening using an artificial neural network and sensor model, <i>in</i> Proceedings of SPIE - The International Society for Optical Engineering, v. 4388, Orlando,FL, 19 April 2001 through 20 April 2001, p. 181-192, https://doi.org/10.1117/12.438256.","startPage":"181","endPage":"192","numberOfPages":"12","costCenters":[],"links":[{"id":207607,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1117/12.438256"},{"id":232703,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"4388","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a43cde4b0c8380cd66623","contributors":{"editors":[{"text":"Park S.K.Rahman Z.Schowengerdt R.A.","contributorId":128439,"corporation":true,"usgs":false,"organization":"Park S.K.Rahman Z.Schowengerdt R.A.","id":536503,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Lemeshewsky, G.P.","contributorId":106927,"corporation":false,"usgs":true,"family":"Lemeshewsky","given":"G.P.","affiliations":[],"preferred":false,"id":398403,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schowengerdt, R.A.","contributorId":83707,"corporation":false,"usgs":true,"family":"Schowengerdt","given":"R.A.","affiliations":[],"preferred":false,"id":398402,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70171314,"text":"70171314 - 2001 - Littoral zone fish assemblages of northern Cayuga Lake.","interactions":[],"lastModifiedDate":"2016-05-26T14:15:16","indexId":"70171314","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Littoral zone fish assemblages of northern Cayuga Lake.","docAbstract":"<p>Fish assemblages from northern Cayuga Lake were examined for patterns in temporal structure. Fish assemblages changed significantly between seasons. Bluegill (<i>Lepomis macrochirus</i>), bluntnose minnow (Pimephales notatus), and smallmouth bass (Micropterus dolomieu) formed the basis for most assemblages, but the spring assemblage was dominated by common carp (<i>Cyprinus carpio</i>). Correlations between community structure and abiotic factors were identified. Ten abiotic factors strongly influenced species assemblages, including phosphorus concentration, but could not fully explain differences between assemblages. Results indicate that the seasonal pattern of fish assemblage structure and abundance of fish that tend to feed in the water column were related to the annual cycle of productivity in the lake and behavioral adaptations of the fish.</p>","largerWorkType":{"id":24,"text":"Conference Paper"},"largerWorkTitle":"A symposium on environmental research in the Cayuga Lake Watershed","largerWorkSubtype":{"id":19,"text":"Conference Paper"},"conferenceTitle":"Symposium on environmental research in the Cayuga Lake Watershed","language":"English","publisher":"Natural Resource, Agriculture, and Engineering Service","usgsCitation":"McKenna, J., 2001, Littoral zone fish assemblages of northern Cayuga Lake., <i>in</i> A symposium on environmental research in the Cayuga Lake Watershed, p. 175-187.","productDescription":"13 p.","startPage":"175","endPage":"187","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":321762,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57481e37e4b07e28b664dbdb","contributors":{"authors":[{"text":"McKenna, James E. Jr. 0000-0002-1428-7597 jemckenna@usgs.gov","orcid":"https://orcid.org/0000-0002-1428-7597","contributorId":627,"corporation":false,"usgs":true,"family":"McKenna","given":"James E.","suffix":"Jr.","email":"jemckenna@usgs.gov","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":false,"id":630542,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70180943,"text":"70180943 - 2001 - Lichens from St. Matthew and St. Paul Islands, Bering Sea, Alaska","interactions":[],"lastModifiedDate":"2018-08-20T19:40:31","indexId":"70180943","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3547,"text":"The Bryologist","active":true,"publicationSubtype":{"id":10}},"title":"Lichens from St. Matthew and St. Paul Islands, Bering Sea, Alaska","docAbstract":"<p><span>One hundred thirty-nine taxa of lichens including two lichen parasites are reported from St. Matthew and St. Paul Islands in the Bering Sea. </span><i>Caloplaca lithophila</i><span> is new to Alaska. Wide-ranging arctic-alpine and boreal species dominate the lichens; a coastal element is moderately represented, while amphi-Beringian species form a minor element. 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W.","contributorId":179139,"corporation":false,"usgs":false,"family":"Thomson","given":"John","email":"","middleInitial":"W.","affiliations":[{"id":13562,"text":"University of Wisconsin, Madison","active":true,"usgs":false}],"preferred":false,"id":662927,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schofield, Wilfred B.","contributorId":97827,"corporation":false,"usgs":true,"family":"Schofield","given":"Wilfred B.","affiliations":[],"preferred":false,"id":662928,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70186871,"text":"70186871 - 2001 - Stratigraphy and lithofacies of Lisburne Group carbonate rocks (Carboniferous - Permian) in the National Petroleum Reserve - Alaska","interactions":[],"lastModifiedDate":"2018-05-07T21:09:07","indexId":"70186871","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5315,"text":"SEPM Core Workshop Notes","active":true,"publicationSubtype":{"id":10}},"title":"Stratigraphy and lithofacies of Lisburne Group carbonate rocks (Carboniferous - Permian) in the National Petroleum Reserve - Alaska","docAbstract":"<p><span>Carbonate rocks of the Lisburne Group (Carboniferous-Permian) occur widely throughout northern Alaska. In the NPRA, seismic mapping and well penetrations show that the Lisburne occurs throughout the subsurface except in northernmost NPRA where it is missing by depositional onlap. Lisburne strata encountered in 11 exploratory wells in the northern part of the NPRA are essentially undeformed, consist of limestone and lesser dolostone, sandstone, siltstone, and shale, encompass a wide array of chiefly shallow-water facies, and range in age from Early Mississippian to Permian. Basins and platforms that formed during Mississippian (and possibly Devonian) time greatly affected depositional patterns of the Lisburne. Total thickness of the Lisburne in northern NPRA wells varies from almost 4000 ft in the Ikpikpuk-Umiat Basin to 300 ft on the north edge of the Fish Creek Platform. Lisburne strata of Mississippian age are found in northeastern NPRA, comprise three subunits (lower limestone, middle dolostone, and upper limestone) and are oldest (Osagean) in the Ikpikpuk-Umiat Basin. All wells that penetrated the Lisburne in northern NPRA encountered rocks of Pennsylvanian age; these intervals are mainly limestone and characterized by decameter-scale shallowing-upward sequences. Lisburne sections of prob-able Early-middle Permian age range from thin (≤60 ft) intervals of dolostone and limestone in the Fish Creek Platform area to thick (500-1000 ft) successions of interbedded limestone and siliciclastic sediment in the Ikpikpuk-Umiat Basin and northwestern NPRA. Abundant non-carbonate detritus, primarily quartz and chert with locally notable plagioclase feldspar and metamorphic lithic clasts, occurs throughout the Lisburne Group in northern NPRA. Per-mian strata and a persistent non-carbonate detrital component are also seen in the Lisburne in subsurface beneath the Chukchi Sea (Hanna Trough) to the northwest, but are not found in Lisburne successions elsewhere in Alaska.</span></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"NPRA core workshop: Petroleum plays and systems in the National Petroleum Reserve - Alaska","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"NPRA Core Workshop: Petroleum Plays and Systems in the National Petroleum Reserve Alaska","conferenceDate":"June 7-8, 2001","conferenceLocation":"Denver, CO","language":"English","publisher":"SEPM","doi":"10.2110/cor.01.01.0141","usgsCitation":"Dumoulin, J.A., and Bird, K.J., 2001, Stratigraphy and lithofacies of Lisburne Group carbonate rocks (Carboniferous - Permian) in the National Petroleum Reserve - Alaska: SEPM Core Workshop Notes, v. 21, p. 141-166, https://doi.org/10.2110/cor.01.01.0141.","productDescription":"16 p.","startPage":"141","endPage":"166","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":339611,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","volume":"21","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58ef3dace4b0eed1ab8e3bea","contributors":{"editors":[{"text":"Houseknecht, David W. 0000-0002-9633-6910 dhouse@usgs.gov","orcid":"https://orcid.org/0000-0002-9633-6910","contributorId":645,"corporation":false,"usgs":true,"family":"Houseknecht","given":"David","email":"dhouse@usgs.gov","middleInitial":"W.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":690752,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Dumoulin, Julie A. 0000-0003-1754-1287 dumoulin@usgs.gov","orcid":"https://orcid.org/0000-0003-1754-1287","contributorId":203209,"corporation":false,"usgs":true,"family":"Dumoulin","given":"Julie","email":"dumoulin@usgs.gov","middleInitial":"A.","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":690750,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bird, Kenneth J. kbird@usgs.gov","contributorId":1015,"corporation":false,"usgs":true,"family":"Bird","given":"Kenneth","email":"kbird@usgs.gov","middleInitial":"J.","affiliations":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true}],"preferred":true,"id":690751,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70186817,"text":"70186817 - 2001 - Recommended features of protocols for long-term ecological monitoring","interactions":[],"lastModifiedDate":"2017-04-11T15:36:43","indexId":"70186817","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Recommended features of protocols for long-term ecological monitoring","docAbstract":"<p>In 1991, the National Park Service (NPS) selected seven parks to serve as prototypes for development of a long-term ecological monitoring program. Denali National Park and Preserve was one of the prototype parks selected. The principal focus of this national program was to detect and document resource changes and to understand the forces driving those changes. One of the major tasks of each prototype park was to develop monitoring protocols. In this paper, we discuss some lessons learned and what we believe to be the most important features of protocols.</p><p>One of the many lessons we have learned is that monitoring protocols vary greatly in content and format. This variation leads to confusion about what information protocols should contain and how they should be formatted. Problems we have observed in existing protocols include (1) not providing enough detail, (2) omitting critical topics (such as data management), and (3) mixing explanation with instructions. Once written, protocols often sit on the shelf to collect dust, allowing methods changes to occur without being adequately considered, tested, or documented. Because a lengthy and costly research effort is often needed to develop protocols, a vision of what the final product should look like is helpful. Based on our involvement with the prototype monitoring program for Denali (Oakley and Boudreau 2000), we recommend key features of protocols, including a scheme for linking protocols to data in the data management system and for tracking protocol revisions. A protocol system is crucial for producing long-term data sets of known quality that meet program objectives. </p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Crossing boundaries in park management: Proceedings of the 11th conference on research and resource management in parks and on public lands","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Crossing Boundaries in Park Management: On the Ground, In the Mind, Among Discipline (2001 George Wright Society Conference)","conferenceDate":"April 16-20, 2001","conferenceLocation":"Denver, CO","language":"English","publisher":"George Wright Society","publisherLocation":"Hancock, MI","usgsCitation":"Oakley, K.L., Boudreau, S.L., and Humphrey, S., 2001, Recommended features of protocols for long-term ecological monitoring, <i>in</i> Crossing boundaries in park management: Proceedings of the 11th conference on research and resource management in parks and on public lands, Denver, CO, April 16-20, 2001, p. 415-419.","productDescription":"5 p.","startPage":"415","endPage":"419","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":339581,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":339580,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.georgewright.org/proceedings2001"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58ede48fe4b0eed1ab8c74d9","contributors":{"authors":[{"text":"Oakley, Karen L. koakley@usgs.gov","contributorId":747,"corporation":false,"usgs":true,"family":"Oakley","given":"Karen","email":"koakley@usgs.gov","middleInitial":"L.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":690664,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Boudreau, Susan L.","contributorId":190772,"corporation":false,"usgs":false,"family":"Boudreau","given":"Susan","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":690665,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Humphrey, Sioux-Z","contributorId":190773,"corporation":false,"usgs":false,"family":"Humphrey","given":"Sioux-Z","email":"","affiliations":[],"preferred":false,"id":690666,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
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