{"pageNumber":"2987","pageRowStart":"74650","pageSize":"25","recordCount":184617,"records":[{"id":70024408,"text":"70024408 - 2002 - How often do fishes \"run on empty\"?","interactions":[],"lastModifiedDate":"2022-01-03T17:02:44.324979","indexId":"70024408","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1465,"text":"Ecology","active":true,"publicationSubtype":{"id":10}},"title":"How often do fishes \"run on empty\"?","docAbstract":"<p><span>We used a large data set of African, Neotropical, and North American fishes to examine the frequency with which fishes have empty stomachs (</span><i>n</i><sub>species</sub><span>&nbsp;= 254;&nbsp;</span><i>n</i><sub>individuals</sub><span>&nbsp;= 36 875). Mean percentage of empty stomachs was low across all fishes (16.2 ± 1.2%) but varied from 0% to 79.4% among individual species. Nocturnal fishes had empty stomachs more frequently than diurnal fishes. Trophic classification was strongly associated with the percentage of empty stomachs, a pattern also revealed from an intraspecific analysis. Fishes appear to adjust their feeding intervals relative to the energy density, conversion efficiency, and particle size of their food. Piscivorous fishes seem to be the only trophic group that regularly experience long periods of empty stomachs, with species that consume prey whole and those that provide extended parental care having the highest proportions of empty stomachs. Activity patterns and life histories of some piscivorous species probably have evolved in partial response to energetic benefits of large, energy-rich food resources.</span></p>","language":"English","publisher":"Wiley","doi":"10.1890/0012-9658(2002)083[2145:HODFRO]2.0.CO;2","usgsCitation":"Arrington, D., Winemiller, K., Loftus, W., and Akin, S., 2002, How often do fishes \"run on empty\"?: Ecology, v. 83, no. 8, p. 2145-2151, https://doi.org/10.1890/0012-9658(2002)083[2145:HODFRO]2.0.CO;2.","productDescription":"7 p.","startPage":"2145","endPage":"2151","costCenters":[{"id":268,"text":"Everglades National Park Field Station","active":false,"usgs":true}],"links":[{"id":232080,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"83","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3252e4b0c8380cd5e6f6","contributors":{"authors":[{"text":"Arrington, D.A.","contributorId":41622,"corporation":false,"usgs":true,"family":"Arrington","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":401153,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Winemiller, K.O.","contributorId":103394,"corporation":false,"usgs":true,"family":"Winemiller","given":"K.O.","affiliations":[],"preferred":false,"id":401154,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Loftus, W.F.","contributorId":29363,"corporation":false,"usgs":true,"family":"Loftus","given":"W.F.","email":"","affiliations":[],"preferred":false,"id":401152,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Akin, S.","contributorId":12654,"corporation":false,"usgs":true,"family":"Akin","given":"S.","email":"","affiliations":[],"preferred":false,"id":401151,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70025087,"text":"70025087 - 2002 - Recharge and groundwater models: An overview","interactions":[],"lastModifiedDate":"2012-03-12T17:20:26","indexId":"70025087","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1923,"text":"Hydrogeology Journal","active":true,"publicationSubtype":{"id":10}},"title":"Recharge and groundwater models: An overview","docAbstract":"Recharge is a fundamental component of groundwater systems, and in groundwater-modeling exercises recharge is either measured and specified or estimated during model calibration. The most appropriate way to represent recharge in a groundwater model depends upon both physical factors and study objectives. Where the water table is close to the land surface, as in humid climates or regions with low topographic relief, a constant-head boundary condition is used. Conversely, where the water table is relatively deep, as in drier climates or regions with high relief, a specified-flux boundary condition is used. In most modeling applications, mixed-type conditions are more effective, or a combination of the different types can be used. The relative distribution of recharge can be estimated from water-level data only, but flux observations must be incorporated in order to estimate rates of recharge. Flux measurements are based on either Darcian velocities (e.g., stream base-flow) or seepage velocities (e.g., groundwater age). In order to estimate the effective porosity independently, both types of flux measurements must be available. Recharge is often estimated more efficiently when automated inverse techniques are used. Other important applications are the delineation of areas contributing recharge to wells and the estimation of paleorecharge rates using carbon-14.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrogeology Journal","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10040-001-0173-5","issn":"14312174","usgsCitation":"Sanford, W., 2002, Recharge and groundwater models: An overview: Hydrogeology Journal, v. 10, no. 1, p. 110-120, https://doi.org/10.1007/s10040-001-0173-5.","startPage":"110","endPage":"120","numberOfPages":"11","costCenters":[],"links":[{"id":209469,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10040-001-0173-5"},{"id":235947,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"10","issue":"1","noUsgsAuthors":false,"publicationDate":"2002-01-12","publicationStatus":"PW","scienceBaseUri":"505a9661e4b0c8380cd81f6e","contributors":{"authors":[{"text":"Sanford, W.","contributorId":76490,"corporation":false,"usgs":true,"family":"Sanford","given":"W.","email":"","affiliations":[],"preferred":false,"id":403764,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70024956,"text":"70024956 - 2002 - Initial lunar calibration observations by the EO-1 Hyperion imaging spectrometer","interactions":[],"lastModifiedDate":"2012-03-12T17:20:11","indexId":"70024956","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Initial lunar calibration observations by the EO-1 Hyperion imaging spectrometer","docAbstract":"The Moon provides an exo-atmospheric radiance source that can be used to determine trends in instrument radio-metric responsivity with high precision. Lunar observations can also be used for absolute radiometric calibration; knowledge of the radiometric scale will steadily improve through independent study of lunar spectral photometry and with sharing of the Moon as a calibration target by increasing numbers of spacecraft, each with its own calibration history. EO-1 calibration includes periodic observation of the Moon by all three of its instruments. Observations are normally made with a phase angle of about 7 degrees (or about 12 hours from the time of Full Moon). Also, SeaWiFS has been making observations at such phase angles for several years, and observations of the Moon by instrument pairs, even if at different times, can be used to transfer absolute calibration. A challenge for EO-1 is pointing to include the entire full Moon in the narrow Hyperion scan. Three Hyperion observations in early 2001 covering an order-of-magnitude difference in lunar irradiance show good agreement for responsivity; the SWIR detector has undergone some changes in responsivity. Small discrepancies of calibration with wavelength could be smoothed using the Moon as a source. Off-axis scattered light response and cross-track response variations can be assessed using the lunar image.","largerWorkTitle":"Proceedings of SPIE - The International Society for Optical Engineering","conferenceTitle":"Imaging Spectrometry VII","conferenceDate":"1 August 2001 through 3 August 2001","conferenceLocation":"San Diego, CA","language":"English","doi":"10.1117/12.453347","issn":"0277786X","usgsCitation":"Kieffer, H.H., Jarecke, P., and Pearlman, J., 2002, Initial lunar calibration observations by the EO-1 Hyperion imaging spectrometer, <i>in</i> Proceedings of SPIE - The International Society for Optical Engineering, v. 4480, San Diego, CA, 1 August 2001 through 3 August 2001, p. 247-258, https://doi.org/10.1117/12.453347.","startPage":"247","endPage":"258","numberOfPages":"12","costCenters":[],"links":[{"id":207751,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1117/12.453347"},{"id":232937,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"4480","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3be5e4b0c8380cd628f3","contributors":{"editors":[{"text":"Descour M.R.Shen S.S.","contributorId":128327,"corporation":true,"usgs":false,"organization":"Descour M.R.Shen S.S.","id":536542,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Kieffer, H. H.","contributorId":40725,"corporation":false,"usgs":false,"family":"Kieffer","given":"H.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":403248,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jarecke, P.","contributorId":29999,"corporation":false,"usgs":true,"family":"Jarecke","given":"P.","email":"","affiliations":[],"preferred":false,"id":403247,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pearlman, Jay","contributorId":27230,"corporation":false,"usgs":true,"family":"Pearlman","given":"Jay","affiliations":[],"preferred":false,"id":403246,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70024492,"text":"70024492 - 2002 - High-resolution aeromagnetic mapping of volcanic terrain, Yellowstone National Park","interactions":[],"lastModifiedDate":"2012-03-12T17:20:06","indexId":"70024492","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2499,"text":"Journal of Volcanology and Geothermal Research","active":true,"publicationSubtype":{"id":10}},"title":"High-resolution aeromagnetic mapping of volcanic terrain, Yellowstone National Park","docAbstract":"High-resolution aeromagnetic data acquired over Yellowstone National Park (YNP) show contrasting patterns reflecting differences in rock composition, types and degree of alteration, and crustal structures that mirror the variable geology of the Yellowstone Plateau. The older, Eocene, Absaroka Volcanic Supergroup, a series of mostly altered, andesitic volcanic and volcaniclastic rocks partially exposed in mountains on the eastern margin of YNP, produces high-amplitude, positive magnetic anomalies, strongly contrasting with the less magnetic, younger, latest Cenozoic, Yellowstone Plateau Group, primarily a series of fresh and variably altered rhyolitic rocks covering most of YNP. The Yellowstone caldera is the centerpiece of the Yellowstone Plateau; part of its boundary can be identified on the aeromagnetic map as a series of discontinuous, negative magnetic anomalies that reflect faults or zones along which extensive hydrothermal alteration is localized. The large-volume rhyolitic ignimbrite deposits of the 0.63-Ma Lava Creek Tuff and the 2.1-Ma Huckleberry Ridge Tuff, which are prominent lithologies peripheral to the Yellowstone caldera, produce insignificant magnetic signatures. A zone of moderate amplitude positive anomalies coincides with the mapped extent of several post-caldera rhyolitic lavas. Linear magnetic anomalies reflect the rectilinear fault systems characteristic of resurgent domes in the center of the caldera. Peripheral to the caldera, the high-resolution aeromagnetic map clearly delineates flow unit boundaries of pre- and post-caldera basalt flows, which occur stratigraphically below the post-caldera rhyolitic lavas and are not exposed extensively at the surface. All of the hot spring and geyser basins, such as Norris, Upper and Lower Geyser Basins, West Thumb, and Gibbon, are associated with negative magnetic anomalies, reflecting hydrothermal alteration that has destroyed the magnetic susceptibility of minerals in the volcanic rocks. Within Yellowstone Lake, which is mostly within the Yellowstone caldera, aeromagnetic lows also are associated with known hydrothermal activity in the lake. Many of the magnetic lows extend beyond the areas of alteration and hot springs, suggesting a more extensive currently active or fossil hydrothermal system than is currently mapped. Steep magnetic gradients, suggesting faults or fractures, bound the magnetic lows. This implies that fractures localize the hot springs. Magnetic gradient trends reflect the mapped Basin and Range structural trends of north and northwest, as well as northeasterly trends that parallel the regional trend of the Snake River Plain and the track of the Yellowstone hot spot which follow the Precambrian structural grain. These trends are found both at small scales such as in hydrothermal basins and at more regional fault scales, which suggests that the regional stress field and reactivated older structures may exert some control on localization of hydrothermal activity. ?? 2002 Elsevier Science B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Volcanology and Geothermal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0377-0273(01)00317-1","issn":"03770273","usgsCitation":"Finn, C., and Morgan, L.A., 2002, High-resolution aeromagnetic mapping of volcanic terrain, Yellowstone National Park: Journal of Volcanology and Geothermal Research, v. 115, no. 1-2, p. 207-231, https://doi.org/10.1016/S0377-0273(01)00317-1.","startPage":"207","endPage":"231","numberOfPages":"25","costCenters":[],"links":[{"id":207774,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0377-0273(01)00317-1"},{"id":232976,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"115","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a30fce4b0c8380cd5db2b","contributors":{"authors":[{"text":"Finn, C. A. 0000-0002-6178-0405","orcid":"https://orcid.org/0000-0002-6178-0405","contributorId":93917,"corporation":false,"usgs":true,"family":"Finn","given":"C. A.","affiliations":[],"preferred":false,"id":401456,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Morgan, L. A.","contributorId":16350,"corporation":false,"usgs":true,"family":"Morgan","given":"L.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":401455,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70024491,"text":"70024491 - 2002 - Inhibition of erythrocytes δ-aminolevulinic acid dehydratase (ALAD) activity in fish from waters affected by lead smelters","interactions":[],"lastModifiedDate":"2015-05-11T09:19:54","indexId":"70024491","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1552,"text":"Environmental Monitoring and Assessment","onlineIssn":"1573-2959","printIssn":"0167-6369","active":true,"publicationSubtype":{"id":10}},"title":"Inhibition of erythrocytes δ-aminolevulinic acid dehydratase (ALAD) activity in fish from waters affected by lead smelters","docAbstract":"<p><span>We assessed the effects on fish of lead (Pb) released to streamsby smelters located in Trail, BC (Canada), E. Helena, MT, Herculaneum, MO, and Glover, MO. Fish were collected by electrofishing from sites located downstream of smelters and from reference sites. Blood from each fish was analyzed for &delta;-aminolevulinic acid dehydratase (</span><a class=\"reference-link webtrekk-track\" href=\"http://link.springer.com/search?dc.title=ALAD&amp;facet-content-type=ReferenceWorkEntry&amp;sortOrder=relevance\">ALAD</a><span>) activity and hemoglobin (Hb), and samples of blood, liver, or carcass were analyzed for Pb, zinc (Zn), or both. Fish collected downstreamof all four smelters sites had elevated Pb concentrations, decreased&nbsp;</span><a class=\"reference-link webtrekk-track\" href=\"http://link.springer.com/search?dc.title=ALAD&amp;facet-content-type=ReferenceWorkEntry&amp;sortOrder=relevance\">ALAD</a><span>&nbsp;activity, or both relative to their respectivereference sites. At E. Helena, fish from the downstream site also had lower Hb concentrations than fish from upstream. Differences among taxa were also apparent. Consistent with previous studies,&nbsp;</span><a class=\"reference-link webtrekk-track\" href=\"http://link.springer.com/search?dc.title=ALAD&amp;facet-content-type=ReferenceWorkEntry&amp;sortOrder=relevance\">ALAD</a><span>&nbsp;activity in catostomids (</span><a class=\"reference-link webtrekk-track\" href=\"http://link.springer.com/search?dc.title=Pisces&amp;facet-content-type=ReferenceWorkEntry&amp;sortOrder=relevance\">Pisces</a><span>: Catostomidae-northern hog sucker,</span><i class=\"a-plus-plus\">Hypentelium nigricans</i><span>;river carpsucker,&nbsp;</span><i class=\"a-plus-plus\">Carpiodes carpio</i><span>; largescale sucker,&nbsp;</span><i class=\"a-plus-plus\">Catostomus macrocheilus</i><span>; and mountain sucker,&nbsp;</span><i class=\"a-plus-plus\">C. platyrhynchus</i><span>) seemed more sensitive to Pb-induced&nbsp;</span><a class=\"reference-link webtrekk-track\" href=\"http://link.springer.com/search?dc.title=ALAD&amp;facet-content-type=ReferenceWorkEntry&amp;sortOrder=relevance\">ALAD</a><span>inhibition than the salmonids (</span><a class=\"reference-link webtrekk-track\" href=\"http://link.springer.com/search?dc.title=Pisces&amp;facet-content-type=ReferenceWorkEntry&amp;sortOrder=relevance\">Pisces</a><span>: Salmonidae-rainbow trout,</span><i class=\"a-plus-plus\">Oncorhynchus mykiss</i><span>; brook trout,</span><i class=\"a-plus-plus\">Salvelinus fontinalis</i><span>) or common carp (</span><i class=\"a-plus-plus\">Cyprinus carpio</i><span>). Some of these differences may have resulted from differential accumulation of Zn, which was not measured at all sites. We detected no</span><a class=\"reference-link webtrekk-track\" href=\"http://link.springer.com/search?dc.title=ALAD&amp;facet-content-type=ReferenceWorkEntry&amp;sortOrder=relevance\">ALAD</a><span>&nbsp;activity in channel catfish (</span><i class=\"a-plus-plus\">Ictaluruspunctatus</i><span>) from either site on the Mississippi River at Herculaneum, MO. Our findings confirmed that Pb is releasedto aquatic ecosystems by smelters and accumulated by fish, andwe documented potentially adverse effects of Pb in fish. We recommend that Zn be measured along with Pb when&nbsp;</span><a class=\"reference-link webtrekk-track\" href=\"http://link.springer.com/search?dc.title=ALAD&amp;facet-content-type=ReferenceWorkEntry&amp;sortOrder=relevance\">ALAD</a><span>&nbsp;activityis used as a biomarker and the collection of at least 10 fish ofa species at each site to facilitate statistical analysis.</span></p>","language":"English","publisher":"Springer","doi":"10.1023/A:1015767503629","issn":"01676369","usgsCitation":"Schmitt, C.J., Caldwell, C.A., Olsen, B., Serdar, D., and Coffey, M., 2002, Inhibition of erythrocytes δ-aminolevulinic acid dehydratase (ALAD) activity in fish from waters affected by lead smelters: Environmental Monitoring and Assessment, v. 77, no. 1, p. 99-119, https://doi.org/10.1023/A:1015767503629.","productDescription":"21 p.","startPage":"99","endPage":"119","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":232944,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":207756,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1023/A:1015767503629"}],"volume":"77","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3bd7e4b0c8380cd62881","contributors":{"authors":[{"text":"Schmitt, Christopher J. 0000-0001-6804-2360 cjschmitt@usgs.gov","orcid":"https://orcid.org/0000-0001-6804-2360","contributorId":491,"corporation":false,"usgs":true,"family":"Schmitt","given":"Christopher","email":"cjschmitt@usgs.gov","middleInitial":"J.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":401453,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Caldwell, Colleen A. 0000-0002-4730-4867 ccaldwel@usgs.gov","orcid":"https://orcid.org/0000-0002-4730-4867","contributorId":3050,"corporation":false,"usgs":true,"family":"Caldwell","given":"Colleen","email":"ccaldwel@usgs.gov","middleInitial":"A.","affiliations":[{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true}],"preferred":true,"id":401450,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Olsen, Bill","contributorId":54376,"corporation":false,"usgs":true,"family":"Olsen","given":"Bill","affiliations":[],"preferred":false,"id":401452,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Serdar, Dave","contributorId":34690,"corporation":false,"usgs":true,"family":"Serdar","given":"Dave","email":"","affiliations":[],"preferred":false,"id":401451,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Coffey, Mike","contributorId":78684,"corporation":false,"usgs":true,"family":"Coffey","given":"Mike","email":"","affiliations":[],"preferred":false,"id":401454,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70194298,"text":"70194298 - 2002 - Growth of Usnea longissima across a variety of habitats in the Oregon Coast Range","interactions":[],"lastModifiedDate":"2017-11-21T16:00:03","indexId":"70194298","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1087,"text":"Bryologist","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Growth of <i>Usnea longissima</i> across a variety of habitats in the Oregon Coast Range","title":"Growth of Usnea longissima across a variety of habitats in the Oregon Coast Range","docAbstract":"<p>No abstract available.<br data-mce-bogus=\"1\"></p>","language":"English","usgsCitation":"Keon, D., and Muir, P., 2002, Growth of Usnea longissima across a variety of habitats in the Oregon Coast Range: Bryologist, v. 105, no. 2, p. 233-242.","productDescription":"10 p.","startPage":"233","endPage":"242","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":349239,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"105","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a611e33e4b06e28e9c25ab3","contributors":{"authors":[{"text":"Keon, D.","contributorId":101488,"corporation":false,"usgs":true,"family":"Keon","given":"D.","email":"","affiliations":[],"preferred":false,"id":723158,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Muir, P.S.","contributorId":2130,"corporation":false,"usgs":false,"family":"Muir","given":"P.S.","email":"","affiliations":[],"preferred":false,"id":723159,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70025085,"text":"70025085 - 2002 - Resident fish assemblages in shallow shorelines of a Columbia River impoundment","interactions":[],"lastModifiedDate":"2016-04-26T15:07:10","indexId":"70025085","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2900,"text":"Northwest Science","onlineIssn":"2161-9859","printIssn":"0029-344X","active":true,"publicationSubtype":{"id":10}},"title":"Resident fish assemblages in shallow shorelines of a Columbia River impoundment","docAbstract":"<p>During May-September 1995, we replicated an earlier (1984-85) study of fishes in shoreline habitats of the John Day Reservoir, Columbia River, to investigate fish assemblage structure at several spatial and temporal scales. A total of 37,400 resident fishes representing 24 taxa was collected in 359 beach seine hauls. Fish catch composition during 1984 and 1985 was very similar, but was greatly different from catch in 1995. During 1984-1985, four native taxa (chiselmouth, northern pikeminnow, suckers, and sand rollers) constituted more than 90% of the combined main-channel catch, with introduced taxa comprising only 1.3% of the main-channel catch. In contrast, during 1995 only 37.7% of the main-channel catch comprised chiselmouth, northern pikeminnow, suckers, and sand rollers, while 33.9% were introduced taxa, primarily sunfishes and yellow perch. This shift in catch composition was greatest in the lower reservoir where the 1995 catch was 61% introduced taxa. Although changes in species composition of near-shore reservoir fish assemblages over the 10-yr period appeared to be substantial, we are unsure of annual variability since we have only one season of sampling for comparison with the earlier study. The differences we observed could be a long-term response to reservoir aging, a short-term reaction to annual differences in hydrologic and thermal regimes, or simply the naturally varying reproductive success of some species.</p>","language":"English","issn":"0029344X","usgsCitation":"Barfoot, C., Gadomski, D., and Petersen, J., 2002, Resident fish assemblages in shallow shorelines of a Columbia River impoundment: Northwest Science, v. 76, no. 2, p. 103-117.","productDescription":"15 p.","startPage":"103","endPage":"117","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":235915,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"76","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aa97ae4b0c8380cd85e08","contributors":{"authors":[{"text":"Barfoot, C.A.","contributorId":51490,"corporation":false,"usgs":true,"family":"Barfoot","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":403760,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gadomski, D.M.","contributorId":37101,"corporation":false,"usgs":true,"family":"Gadomski","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":403759,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Petersen, J.H.","contributorId":72154,"corporation":false,"usgs":true,"family":"Petersen","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":403761,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70196024,"text":"70196024 - 2002 - Comment [on 'Are Proterozoic cap carbonates and isotopic excursions a record of gas hydrate destabilization following Earth’s coldest intervals?, Kennedy et al., Geology 29(5), 442-446]","interactions":[],"lastModifiedDate":"2018-03-13T16:30:02","indexId":"70196024","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Comment [on 'Are Proterozoic cap carbonates and isotopic excursions a record of gas hydrate destabilization following Earth’s coldest intervals?, Kennedy et al., Geology 29(5), 442-446]","docAbstract":"<p>We welcome the evidence noted by Kennedy et al. (2001) for strong methane excursions associated with the cessation of glacial episodes. They identify the carbon in cap carbonates overlying glacial sediments as probably being of biogenic origin and as likely having had a biogenic methane source. These authors suggest that the methane was released from gas hydrate, which we agree is likely. However, we suggest a different mechanism for that release, rather than their suggested warming event. We propose that a dominantly pressure-related mechanism would be more plausible for releasing sufficient methane from the huge gas hydrate reservoir to modify the global greenhouse and drive global warming in a geological instant.</p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0091-7613(2002)030<0762:>2.0.CO;2","usgsCitation":"Max, M., and Dillon, W.P., 2002, Comment [on 'Are Proterozoic cap carbonates and isotopic excursions a record of gas hydrate destabilization following Earth’s coldest intervals?, Kennedy et al., Geology 29(5), 442-446]: Geology, v. 30, no. 8, p. 762-763, https://doi.org/10.1130/0091-7613(2002)030<0762:>2.0.CO;2.","productDescription":"2 p.","startPage":"762","endPage":"763","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":352488,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":352487,"rank":1,"type":{"id":22,"text":"Related Work"},"url":"https://doi.org/10.1130/0091-7613(2001)029<0443:APCCAI>2.0.CO;2","text":"Kennedy et al. (2001)"}],"volume":"30","issue":"8","publicComments":"Comment on the following article: \"<i>Martin J. Kennedy, Nicholas Christie-Blick, Linda E. Sohl; Are Proterozoic cap carbonates and isotopic excursions a record of gas hydrate destabilization following Earth's coldest intervals?. Geology ; 29 (5): 443–446; 10.1130/0091-7613(2001)029<0443:APCCAI>2.0.CO;2</i>","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5aff0b9de4b0da30c1bfcfa3","contributors":{"authors":[{"text":"Max, M.D.","contributorId":17366,"corporation":false,"usgs":true,"family":"Max","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":730961,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dillon, William P. bdillon@usgs.gov","contributorId":79820,"corporation":false,"usgs":true,"family":"Dillon","given":"William","email":"bdillon@usgs.gov","middleInitial":"P.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":730962,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70196023,"text":"70196023 - 2002 - USGS leads United States effort in Mallik Well","interactions":[],"lastModifiedDate":"2018-03-13T16:05:04","indexId":"70196023","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1641,"text":"Fire in the Ice: NETL Methane Hydrate Newsletter","active":true,"publicationSubtype":{"id":10}},"title":"USGS leads United States effort in Mallik Well","docAbstract":"<p>This winter, in the extremely cold, far reaches of the upper Northwest Territory of Canada, there is an international consortium of researchers participating in a program to study methane hydrates. The researchers are currently drilling a 1200 m-deep production research well through the permafrost. It is one of three wells located in the Mackenzie Delta, on the shore of the Beaufort Sea. Two observation wells were drilled adjacent to the main production test well earlier this year.</p><p>Research objectives for the program focus on two themes: (1) the assessment of the production and properties of gas hydrates, and (2) an assessment of the stability of continental gas hydrates given warming trends predicted by climate change models. Of particular interest is the physical response of the gas hydrate to depressurization and thermal production stimulation. Cores are being taken from the well, and scientists hope to retrieve at least 200 m of core, including all the gas hydrate-rich intervals. Once cored, the samples are transported 200 kilometers over ice roads to Inuvik. Nearly 60 researchers are examining the cores for everything from geophysical parameters to microbiological analyses.</p>","language":"English","publisher":"U.S. Department of Energy","usgsCitation":"U.S. Department of Energy, 2002, USGS leads United States effort in Mallik Well: Fire in the Ice: NETL Methane Hydrate Newsletter, v. 2, no. 1, p. 3-4.","productDescription":"2 p.","startPage":"3","endPage":"4","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":352484,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":352482,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.netl.doe.gov/research/oil-and-gas/methane-hydrates/fire-in-the-ice"},{"id":352483,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://www.netl.doe.gov/File%20Library/Research/Oil-Gas/methane%20hydrates/HMNewsWinter02.pdf#page=3","linkFileType":{"id":1,"text":"pdf"}}],"volume":"2","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5aff0b9de4b0da30c1bfcfa5"}
,{"id":70024484,"text":"70024484 - 2002 - FTIR and py-GC-MS spectra of true-fern and seed-fern sphenopterids (Sydney Coalfield, Nova Scotia, Canada, Pennsylvanian)","interactions":[],"lastModifiedDate":"2012-03-12T17:20:13","indexId":"70024484","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2033,"text":"International Journal of Coal Geology","active":true,"publicationSubtype":{"id":10}},"title":"FTIR and py-GC-MS spectra of true-fern and seed-fern sphenopterids (Sydney Coalfield, Nova Scotia, Canada, Pennsylvanian)","docAbstract":"Sphenopterid specimens from the Late Pennsylvanian of Sydney Coalfield, Canada, are investigated by FTIR and py-GC-MS techniques as part of an on-going research project into the biochemistry and chemotaxonomy of Pennsylvanian-age pteridophylls. Included in the investigation are samples of the true-fern species Oligocarpia brongniartii and Zeilleria delicatula that are preserved as naturally macerated cuticles (NMC), and the seed-fern Eusphenopteris neuropteroides that is also preserved as a compression/impression. FTIR spectra of NMC seed-fern E. neuropteroides, and fern sphenopterid O. brongniartii are very similar, except that the latter does not have aromatic bands in the 700-900 cm-1 out-of-plane region, py-GC-MS show more aromatic compounds for the seed fern than for the two true-fern sphenopterids. Another difference between seed-fern and true-fern sphenopterids is a lower ratio of CH2 to CH3 in chemically treated specimens (CTC) for the seed fern. These observations suggest slightly higher aromaticity for the seed ferns, perhaps related to some chemotaxonomic differences. Comparison of FTIR and py-GC-MS characteristics of sphenopterids and other plant groups shows that these two techniques have potential to identifying chemotaxonomic signals from Carboniferous pteridophylls in general, although more data are needed to confirm this. ?? 2002 Elsevier Science B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Journal of Coal Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0166-5162(02)00086-1","issn":"01665162","usgsCitation":"Zodrow, E., and Mastalerz, M., 2002, FTIR and py-GC-MS spectra of true-fern and seed-fern sphenopterids (Sydney Coalfield, Nova Scotia, Canada, Pennsylvanian): International Journal of Coal Geology, v. 51, no. 2, p. 111-127, https://doi.org/10.1016/S0166-5162(02)00086-1.","startPage":"111","endPage":"127","numberOfPages":"17","costCenters":[],"links":[{"id":207663,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0166-5162(02)00086-1"},{"id":232801,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"51","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0e84e4b0c8380cd534c9","contributors":{"authors":[{"text":"Zodrow, E.L.","contributorId":99328,"corporation":false,"usgs":true,"family":"Zodrow","given":"E.L.","email":"","affiliations":[],"preferred":false,"id":401435,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mastalerz, Maria","contributorId":78065,"corporation":false,"usgs":true,"family":"Mastalerz","given":"Maria","affiliations":[],"preferred":false,"id":401434,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70024964,"text":"70024964 - 2002 - Relationship of epithermal gold deposits to large-scale fractures in northern Nevada","interactions":[],"lastModifiedDate":"2012-03-12T17:20:05","indexId":"70024964","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"Relationship of epithermal gold deposits to large-scale fractures in northern Nevada","docAbstract":"Geophysical maps of northern Nevada reveal at least three and possibly six large-scale arcuate features, one of which corresponds to the northern Nevada rift that possibly extends more than 1,000 km from the Oregon- Idaho border to southern Nevada. These features may reflect deep discontinuities within the earth's crust, possibly related to the impact of the Yellowstone hot spot. Because mid-Miocene epithermal gold deposits have been shown to correlate with the northern Nevada rift, we investigate the association of other epithermal gold deposits to other similar arcuate features in northern Nevada. Mid-Miocene and younger epithermal gold- silver deposits also occur along two prominent aeromagnetic anomalies west of the northern Nevada rift. Here, we speculate that mid-Miocene deposits formed along deep fractures in association with mid-Miocene rift- related magmatism and that younger deposits preferentially followed these preexisting features. Statistical analysis of the proximity of epithermal gold deposits to these features suggests that epithermal gold deposits in northern Nevada are spatially associated with large-scale crustal features interpreted from geophysical data.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Economic Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2113/97.1.3","issn":"03610128","usgsCitation":"Ponce, D., and Glen, J., 2002, Relationship of epithermal gold deposits to large-scale fractures in northern Nevada: Economic Geology, v. 97, no. 1, p. 3-9, https://doi.org/10.2113/97.1.3.","startPage":"3","endPage":"9","numberOfPages":"7","costCenters":[],"links":[{"id":207818,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2113/97.1.3"},{"id":233042,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"97","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e4a76be4b0e8fec6cdc455","contributors":{"authors":[{"text":"Ponce, D. A. 0000-0003-4785-7354","orcid":"https://orcid.org/0000-0003-4785-7354","contributorId":104019,"corporation":false,"usgs":true,"family":"Ponce","given":"D. A.","affiliations":[],"preferred":false,"id":403280,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Glen, J.M.G.","contributorId":38330,"corporation":false,"usgs":true,"family":"Glen","given":"J.M.G.","email":"","affiliations":[],"preferred":false,"id":403279,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70024815,"text":"70024815 - 2002 - Derivation of a tasselled cap transformation based on Landsat 7 at-satellite reflectance","interactions":[],"lastModifiedDate":"2018-02-23T13:34:51","indexId":"70024815","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2068,"text":"International Journal of Remote Sensing","active":true,"publicationSubtype":{"id":10}},"title":"Derivation of a tasselled cap transformation based on Landsat 7 at-satellite reflectance","docAbstract":"A new tasselled cap transformation based on Landsat 7 at-satellite reflectance was developed. This transformation is most appropriate for regional applications where atmospheric correction is not feasible. The brightness, greenness and wetness of the derived transformation collectively explained over 97% of the spectral variance of the individual scenes used in this study.","language":"English","publisher":"Taylor & Francis","doi":"10.1080/01431160110106113","issn":"01431161","usgsCitation":"Huang, C., Wylie, B.K., Yang, L., Homer, C.G., and Zylstra, G., 2002, Derivation of a tasselled cap transformation based on Landsat 7 at-satellite reflectance: International Journal of Remote Sensing, v. 23, no. 8, p. 1741-1748, https://doi.org/10.1080/01431160110106113.","productDescription":"8 p.","startPage":"1741","endPage":"1748","numberOfPages":"8","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":232895,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":207722,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/01431160110106113"}],"volume":"23","issue":"8","noUsgsAuthors":false,"publicationDate":"2010-11-25","publicationStatus":"PW","scienceBaseUri":"5059fedce4b0c8380cd4ef70","contributors":{"authors":[{"text":"Huang, Chengquan","contributorId":25378,"corporation":false,"usgs":true,"family":"Huang","given":"Chengquan","affiliations":[],"preferred":false,"id":402717,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wylie, Bruce K. 0000-0002-7374-1083 wylie@usgs.gov","orcid":"https://orcid.org/0000-0002-7374-1083","contributorId":750,"corporation":false,"usgs":true,"family":"Wylie","given":"Bruce","email":"wylie@usgs.gov","middleInitial":"K.","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true},{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"preferred":true,"id":402716,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Yang, Limin 0000-0002-2843-6944 lyang@usgs.gov","orcid":"https://orcid.org/0000-0002-2843-6944","contributorId":4305,"corporation":false,"usgs":true,"family":"Yang","given":"Limin","email":"lyang@usgs.gov","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":true,"id":402714,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Homer, Collin G. 0000-0003-4755-8135 homer@usgs.gov","orcid":"https://orcid.org/0000-0003-4755-8135","contributorId":2262,"corporation":false,"usgs":true,"family":"Homer","given":"Collin","email":"homer@usgs.gov","middleInitial":"G.","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true},{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"preferred":true,"id":402715,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Zylstra, G.","contributorId":70564,"corporation":false,"usgs":true,"family":"Zylstra","given":"G.","email":"","affiliations":[],"preferred":false,"id":402718,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70025091,"text":"70025091 - 2002 - Satellite imagery for volcanic hazards mitigation","interactions":[],"lastModifiedDate":"2012-03-12T17:20:26","indexId":"70025091","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Satellite imagery for volcanic hazards mitigation","docAbstract":"The Committee on Earth Observation Satellites (CEOS) seeks to foster cooperation to increase the usefulness and accessibility of satellite imagery. In 1997, CEOS initiated the Disaster Management Support Project to assess the present and potential use of satellite-derived information for volcanic hazards mitigation. The final report of the CEOS Volcanic Hazards Working Group reviews current use of satellite data for mitigation of volcanic hazards. The report specifies the minimum spectral channels needed for effective remote sensing of volcanic hazards, together with recommendations for threshold and optimum spatial and temporal resolutions.","largerWorkTitle":"International Geoscience and Remote Sensing Symposium (IGARSS)","conferenceTitle":"2002 IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2002)","conferenceDate":"24 June 2002 through 28 June 2002","conferenceLocation":"Toronto, Ont.","language":"English","usgsCitation":"Helz, R., Ellrod, G., and Wadge, G., 2002, Satellite imagery for volcanic hazards mitigation, <i>in</i> International Geoscience and Remote Sensing Symposium (IGARSS), v. 2, Toronto, Ont., 24 June 2002 through 28 June 2002, p. 757-758.","startPage":"757","endPage":"758","numberOfPages":"2","costCenters":[],"links":[{"id":235984,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b86dbe4b08c986b316171","contributors":{"authors":[{"text":"Helz, Rosalind Tuthill 0000-0003-1550-0684","orcid":"https://orcid.org/0000-0003-1550-0684","contributorId":16806,"corporation":false,"usgs":true,"family":"Helz","given":"Rosalind Tuthill","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":403792,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ellrod, G.A.","contributorId":98518,"corporation":false,"usgs":true,"family":"Ellrod","given":"G.A.","email":"","affiliations":[],"preferred":false,"id":403794,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wadge, G.","contributorId":35106,"corporation":false,"usgs":true,"family":"Wadge","given":"G.","affiliations":[],"preferred":false,"id":403793,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70024814,"text":"70024814 - 2002 - 234U/238U evidence for local recharge and patterns of groundwater flow in the vicinity of Yucca Mountain, Nevada, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:20:10","indexId":"70024814","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":835,"text":"Applied Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"234U/238U evidence for local recharge and patterns of groundwater flow in the vicinity of Yucca Mountain, Nevada, USA","docAbstract":"Uranium concentrations and 234U/238U ratios in saturated-zone and perched ground water were used to investigate hydrologic flow and downgradient dilution and dispersion in the vicinity of Yucca Mountain, a potential high-level radioactive waste disposal site. The U data were obtained by thermal ionization mass spectrometry on more than 280 samples from the Death Valley regional flow system. Large variations in both U concentrations (commonly 0.6-10 ??g 1-1) and 234U/238U activity ratios (commonly 1.5-6) are present on both local and regional scales; however, ground water with 234U/238U activity ratios from 7 up to 8.06 is restricted largely to samples from Yucca Mountain. Data from ground water in the Tertiary volcanic and Quaternary alluvial aquifers at and adjacent to Yucca Mountain plot in 3 distinct fields of reciprocal U concentration versus 234U/238U activity ratio correlated to different geographic areas. Ground water to the west of Yucca Mountain has large U concentrations and moderate 234U/238U whereas ground water to the east in the Fortymile flow system has similar 234U/238U, but distinctly smaller U concentrations. Ground water beneath the central part of Yucca Mountain has intermediate U concentrations but distinctive 234U/238U activity ratios of about 7-8. Perched water from the lower part of the unsaturated zone at Yucca Mountain has similarly large values of 234U/238U. These U data imply that the Tertiary volcanic aquifer beneath the central part of Yucca Mountain is isolated from north-south regional flow. The similarity of 234U/238U in both saturated- and unsaturated-zone ground water at Yucca Mountain further indicates that saturated-zone ground water beneath Yucca Mountain is dominated by local recharge rather than regional flow. The distinctive 234U/238U signatures also provide a natural tracer of downgradient flow. Elevated 234U/238U in ground water from two water-supply wells east of Yucca Mountain are interpreted as the result of induced flow from 40 a of ground-water withdrawal. Elevated 234U/238U in a borehole south of Yucca Mountain is interpreted as evidence that natural downgradient flow is more likely to follow southerly paths in the structurally anisotropic Tertiary volcanic aquifer where it becomes diluted by regional flow in the Fortymile system.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Applied Geochemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0883-2927(02)00037-9","issn":"08832927","usgsCitation":"Paces, J., Ludwig, K., Peterman, Z.E., and Neymark, L., 2002, 234U/238U evidence for local recharge and patterns of groundwater flow in the vicinity of Yucca Mountain, Nevada, USA: Applied Geochemistry, v. 17, no. 6, p. 751-779, https://doi.org/10.1016/S0883-2927(02)00037-9.","startPage":"751","endPage":"779","numberOfPages":"29","costCenters":[],"links":[{"id":207721,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0883-2927(02)00037-9"},{"id":232894,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"17","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e254e4b0c8380cd45ac6","contributors":{"authors":[{"text":"Paces, J.B. 0000-0002-9809-8493","orcid":"https://orcid.org/0000-0002-9809-8493","contributorId":27482,"corporation":false,"usgs":true,"family":"Paces","given":"J.B.","affiliations":[],"preferred":false,"id":402710,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ludwig, K.R.","contributorId":97112,"corporation":false,"usgs":true,"family":"Ludwig","given":"K.R.","email":"","affiliations":[{"id":218,"text":"Denver Federal Center","active":false,"usgs":true}],"preferred":false,"id":402713,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Peterman, Z. E.","contributorId":63781,"corporation":false,"usgs":true,"family":"Peterman","given":"Z.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":402712,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Neymark, L.A. 0000-0003-4190-0278","orcid":"https://orcid.org/0000-0003-4190-0278","contributorId":56673,"corporation":false,"usgs":true,"family":"Neymark","given":"L.A.","affiliations":[],"preferred":false,"id":402711,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70024818,"text":"70024818 - 2002 - Ancient and modern subduction zone contributions to the mantle sources of lavas from the Lassen region of California inferred from Lu-Hf isotopic systematics","interactions":[],"lastModifiedDate":"2022-08-03T15:36:48.589429","indexId":"70024818","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2420,"text":"Journal of Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Ancient and modern subduction zone contributions to the mantle sources of lavas from the Lassen region of California inferred from Lu-Hf isotopic systematics","docAbstract":"<p><span>Hafnium isotopic compositions have been determined on a suite of calc-alkaline and high-alumina-olivine tholeiitic lavas from the Lassen region of California and are used, in conjunction with previously published mineralogical, geochemical, and isotopic data, to constrain their petrogenesis. Positive correlation between ε</span><sub><i>Hf</i></sub><span>&nbsp;values and geochemical indices of the modern subduction component indicates that the isotopic compositions of the calc-alkaline lavas record addition of radiogenic Hf from the subducted slab. However, the addition of the modern subduction component increases the ε</span><sub><i>Hf</i></sub><span>&nbsp;values of most calc-alkaline lavas by &lt;0·5 units over estimates of non-subduction enriched peridotites of the mantle wedge. The Lu–Hf isotopic systematics of the Lassen lavas suggest that the calc-alkaline magmas have equilibrated with garnet at some point in their history, whereas the tholeiitic magmas have not. These observations require the two lava types to be derived from different sources. The isotopic variability of the Lassen lavas cannot be produced by mixing mantle sources inferred to be present in the eastern–central Pacific and western USA with a modern subduction component. Instead, the isotopic variability is consistent with mixing of a depleted mantle source, a more fertile mantle source enriched by an ancient subduction component, and a modern subduction component.</span></p>","language":"English","publisher":"Oxford Academic","doi":"10.1093/petrology/43.4.705","usgsCitation":"Borg, L.E., Blichert-Toft, J., and Clynne, M.A., 2002, Ancient and modern subduction zone contributions to the mantle sources of lavas from the Lassen region of California inferred from Lu-Hf isotopic systematics: Journal of Petrology, v. 43, no. 4, p. 705-723, https://doi.org/10.1093/petrology/43.4.705.","productDescription":"19 p.","startPage":"705","endPage":"723","numberOfPages":"19","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":489164,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1093/petrology/43.4.705","text":"Publisher Index Page"},{"id":232962,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Lassen region","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -122.0086669921875,\n              39.791654835253425\n            ],\n            [\n              -120.574951171875,\n              39.791654835253425\n            ],\n            [\n              -120.574951171875,\n              41.000629848685385\n            ],\n            [\n              -122.0086669921875,\n              41.000629848685385\n            ],\n            [\n              -122.0086669921875,\n              39.791654835253425\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"43","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ebf4e4b0c8380cd48fbd","contributors":{"authors":[{"text":"Borg, L. E.","contributorId":33863,"corporation":false,"usgs":false,"family":"Borg","given":"L.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":402726,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Blichert-Toft, Janne","contributorId":248203,"corporation":false,"usgs":false,"family":"Blichert-Toft","given":"Janne","affiliations":[{"id":49822,"text":"Ecole Normale Supérieure de Lyon","active":true,"usgs":false}],"preferred":false,"id":402727,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Clynne, Michael A. 0000-0002-4220-2968 mclynne@usgs.gov","orcid":"https://orcid.org/0000-0002-4220-2968","contributorId":2032,"corporation":false,"usgs":true,"family":"Clynne","given":"Michael","email":"mclynne@usgs.gov","middleInitial":"A.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":402728,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70025000,"text":"70025000 - 2002 - Respiratory strategy is a major determinant of [3H]water and [14C]chlorpyrifos uptake in aquatic insects","interactions":[],"lastModifiedDate":"2012-03-12T17:20:05","indexId":"70025000","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1169,"text":"Canadian Journal of Fisheries and Aquatic Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Respiratory strategy is a major determinant of [3H]water and [14C]chlorpyrifos uptake in aquatic insects","docAbstract":"Despite the extensive use of aquatic insects to evaluate freshwater ecosystem health, little is known about the underlying factors that result in sensitivity differences between taxa. Organismal characteristics (respiratory strategy and body size) were used to explore the rates of [3H]H2O and [14)C]chlorpyrifos accumulation in aquatic insects. Ten aquatic insect taxa, including ephemeropteran, trichopteran, dipteran, hemipteran, and coleopteran species, were exposed to [14C]chlorpyrifos (240 ng??L-1) and [3H]H2O for up to 12 h. Because exchange epithelial surfaces on the)integument are permeable to water, [3H]H2O was used as a quantitative surrogate for exposed cellular surface area.) [14C]Chlorpyrifos uptake rates were highly correlated with water permeability in all 10 taxa tested and largely covaried with body size and respiratory strategy. Rates were highest among smaller organisms on a per-weight basis and in taxa with relatively large external cellular surfaces such as gills. Air-breathing taxa were significantly less permeable to both [3)HH20 and [14C)C]chlorpyrifos. A method for labeling exposed epithelial surfaces with a fluorescent dye was developed. This technique allowed discrimination between exchange epithelium and barrier tissue on the integument. Fluorescent dye distributions on the body surface provided a rapid method for estimating exposed epithelium consistent with [3H]H2O and [14)C]chlorpyrifos accumulation.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Canadian Journal of Fisheries and Aquatic Sciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1139/f02-107","issn":"0706652X","usgsCitation":"Buchwalter, D., Jenkins, J., and Curtis, L., 2002, Respiratory strategy is a major determinant of [3H]water and [14C]chlorpyrifos uptake in aquatic insects: Canadian Journal of Fisheries and Aquatic Sciences, v. 59, no. 8, p. 1315-1322, https://doi.org/10.1139/f02-107.","startPage":"1315","endPage":"1322","numberOfPages":"8","costCenters":[],"links":[{"id":207793,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/f02-107"},{"id":233008,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"59","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aaa0ee4b0c8380cd860fd","contributors":{"authors":[{"text":"Buchwalter, D.B.","contributorId":20053,"corporation":false,"usgs":true,"family":"Buchwalter","given":"D.B.","email":"","affiliations":[],"preferred":false,"id":403397,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jenkins, J.J.","contributorId":60818,"corporation":false,"usgs":true,"family":"Jenkins","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":403399,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Curtis, L.R.","contributorId":49566,"corporation":false,"usgs":true,"family":"Curtis","given":"L.R.","email":"","affiliations":[],"preferred":false,"id":403398,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70187591,"text":"70187591 - 2002 - Predators","interactions":[{"subject":{"id":70187591,"text":"70187591 - 2002 - Predators","indexId":"70187591","publicationYear":"2002","noYear":false,"chapter":"6","title":"Predators"},"predicate":"IS_PART_OF","object":{"id":53871,"text":"bsr20020001 - 2002 - Arctic Refuge coastal plain terrestrial wildlife research summaries","indexId":"bsr20020001","publicationYear":"2002","noYear":false,"title":"Arctic Refuge coastal plain terrestrial wildlife research summaries"},"id":1}],"isPartOf":{"id":53871,"text":"bsr20020001 - 2002 - Arctic Refuge coastal plain terrestrial wildlife research summaries","indexId":"bsr20020001","publicationYear":"2002","noYear":false,"title":"Arctic Refuge coastal plain terrestrial wildlife research summaries"},"lastModifiedDate":"2018-05-06T11:00:52","indexId":"70187591","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"seriesTitle":{"id":9,"text":"Biological Science Report","active":false,"publicationSubtype":{"id":1}},"seriesNumber":"2002-0001","chapter":"6","title":"Predators","docAbstract":"<p>Calving caribou (<i>Rangifer tarandus</i>) of the Central Arctic herd, Alaska, have avoided the infrastructure associated with the complex of petroleum development areas from Prudhoe Bay to Kuparuk (Cameron et al. 1992, Nellemann and Cameron 1998, and Section 4 of this document). Calving females of the Porcupine caribou herd may similarly avoid any oil field roads and pipelines developed in areas traditionally used during the calving and post-calving periods. This may displace the caribou females and calves to areas east and south of the 1002 Area of the Arctic National Wildlife Refuge.</p><p>Increased calf mortality could occur if calving caribou are displaced into areas that have a higher density of predators, higher rates of predation, or where a higher proportion of the predators regularly use caribou as a food source (Whitten et al. 1992).</p><p>Our study assessed predation risks to caribou calving in the 1002 Area versus calving in potential displacement areas. Due to funding constraints, our research focused on grizzly bears (<i>Ursus arctos</i>), with wolves (Camus lupus) and golden eagles (<i>Aquila chrysaetos</i>) receiving only cursory attention. Our research objectives were 1) to compare relative abundance of predators within the 1002 Area with that in adjacent peripheral areas, 2) to determine factors affecting predator abundance on the calving grounds, and 3) to quantify the use of caribou as a food source for predators and the importance of caribou to the productivity of predator populations using the coastal plain of the Arctic National Wildlife Refuge.</p>","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Arctic Refuge coastal plain terrestrial wildlife research summaries (Biological Science Report USGS/BRD/BSR-2002-0001)","largerWorkSubtype":{"id":1,"text":"Federal Government Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Young, D., McCabe, T.R., Ambrose, R.E., Garner, G.W., Weiler, G.J., Reynolds, H.V., Udevitz, M.S., Reed, D.J., and Griffith, B., 2002, Predators: Biological Science Report 2002-0001, 4 p.","productDescription":"4 p.","startPage":"51","endPage":"53","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":341025,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada, United States","state":"Alaska, Northwest Territories, Yukon Territory","otherGeospatial":"Arctic Refuge Coastal Plain, Arctic National Wildlife Refuge","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -152.2265625,\n              66.16051056018838\n            ],\n            [\n              -129.5947265625,\n              66.16051056018838\n            ],\n            [\n              -129.5947265625,\n              70.74347779138229\n            ],\n            [\n              -152.2265625,\n              70.74347779138229\n            ],\n            [\n              -152.2265625,\n              66.16051056018838\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5912d53ae4b0e541a03d4537","contributors":{"editors":[{"text":"Douglas, David C. 0000-0003-0186-1104 ddouglas@usgs.gov","orcid":"https://orcid.org/0000-0003-0186-1104","contributorId":150115,"corporation":false,"usgs":true,"family":"Douglas","given":"David C.","email":"ddouglas@usgs.gov","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":694677,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Reynolds, Patricia E.","contributorId":71056,"corporation":false,"usgs":true,"family":"Reynolds","given":"Patricia","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":694678,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Rhode, E. B.","contributorId":73156,"corporation":false,"usgs":false,"family":"Rhode","given":"E.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":694679,"contributorType":{"id":2,"text":"Editors"},"rank":3}],"authors":[{"text":"Young, Donald D.","contributorId":191905,"corporation":false,"usgs":false,"family":"Young","given":"Donald D.","affiliations":[],"preferred":false,"id":694668,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McCabe, Thomas R.","contributorId":91255,"corporation":false,"usgs":true,"family":"McCabe","given":"Thomas","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":694669,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ambrose, Robert E.","contributorId":86074,"corporation":false,"usgs":false,"family":"Ambrose","given":"Robert","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":694670,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Garner, Gerald W.","contributorId":149918,"corporation":false,"usgs":false,"family":"Garner","given":"Gerald","email":"","middleInitial":"W.","affiliations":[{"id":13117,"text":"Institute of Arctic Biology, University of Alaska Fairbanks","active":true,"usgs":false}],"preferred":false,"id":694671,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Weiler, Greg J.","contributorId":191906,"corporation":false,"usgs":false,"family":"Weiler","given":"Greg","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":694672,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Reynolds, Harry V.","contributorId":191907,"corporation":false,"usgs":false,"family":"Reynolds","given":"Harry","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":694673,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Udevitz, Mark S. 0000-0003-4659-138X mudevitz@usgs.gov","orcid":"https://orcid.org/0000-0003-4659-138X","contributorId":3189,"corporation":false,"usgs":true,"family":"Udevitz","given":"Mark","email":"mudevitz@usgs.gov","middleInitial":"S.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":694674,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Reed, Dan J.","contributorId":191908,"corporation":false,"usgs":false,"family":"Reed","given":"Dan","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":694675,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Griffith, Brad 0000-0001-8698-6859","orcid":"https://orcid.org/0000-0001-8698-6859","contributorId":82571,"corporation":false,"usgs":true,"family":"Griffith","given":"Brad","email":"","affiliations":[{"id":108,"text":"Alaska Cooperative Fish and Wildlife Research Unit","active":false,"usgs":true}],"preferred":true,"id":694676,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":1015256,"text":"1015256 - 2002 - Selection of nesting habitat by sharp-tailed grouse in the Nebraska sandhills","interactions":[],"lastModifiedDate":"2017-12-14T13:15:13","indexId":"1015256","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3111,"text":"Prairie Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Selection of nesting habitat by sharp-tailed grouse in the Nebraska sandhills","docAbstract":"<p>We evaluated nesting habitat selection (disproportionate use compared to availability) by plains sharp-tailed grouse (<i>Tympanuchus phasianellus jamesi</i>) on rangelands grazed by cattle (<i>Bos taurus</i>) relative to height, density, and heterogeneity of residual herbaceous vegetation remaining from previous growing seasons. Residual cover is critical for nesting sharp-tailed grouse and can be lacking on grazed rangelands. Aerial photography and a geographic information system were used to analyze residual cover height classes and several measures of residual cover heterogeneity in nest (n = 38) and random (n = 38) plots. Height classes corresponded to visual obstruction readings (VORs), the height to which total visual obstruction by vegetation occurs. Analyses were conducted for five spatial scales ranging from 1 to 16 ha to test for scale effects on nesting habitat selection. Sharp-tailed grouse selected nesting habitat with more area in tall (greater than or equal to 4 cm VOR) residual cover than at random sites at all scales, less area in short residual cover (less than 2 cm VOR) at the I-ha scale, and less area in short and medium (2 to 3.9 cm YOR) residual cover at the 2- through 16-ha scales. Selection of shrub habitat containing patches of shrubs was evident only at the 16-ha scale. Patches of tall residual cover were larger in nest plots than in random plots at the 8- and 16-ha scales, and patches of short cover were smaller in nest plots at the I-ha scale. Two scales of pattern defined by mean patch size were detected for overall residual cover, but did not relate to nesting habitat selection.</p>","language":"English","publisher":"Great Plains Natural Science Society","usgsCitation":"Prose, B.L., Cade, B.S., and Hein, D., 2002, Selection of nesting habitat by sharp-tailed grouse in the Nebraska sandhills: Prairie Naturalist, v. 34, no. 3/4, p. 85-105.","productDescription":"21 p.","startPage":"85","endPage":"105","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":132362,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":349992,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1088&context=usgsstaffpub"}],"country":"United States","state":"Nebraska","otherGeospatial":"Nebraska Sandhills","volume":"34","issue":"3/4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a00e4b07f02db5f7d5b","contributors":{"authors":[{"text":"Prose, Bart L.","contributorId":29521,"corporation":false,"usgs":true,"family":"Prose","given":"Bart","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":322689,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cade, Brian S. 0000-0001-9623-9849 cadeb@usgs.gov","orcid":"https://orcid.org/0000-0001-9623-9849","contributorId":1278,"corporation":false,"usgs":true,"family":"Cade","given":"Brian","email":"cadeb@usgs.gov","middleInitial":"S.","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":322687,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hein, Dale","contributorId":176346,"corporation":false,"usgs":false,"family":"Hein","given":"Dale","email":"","affiliations":[],"preferred":false,"id":322688,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70024996,"text":"70024996 - 2002 - Factors influencing brown trout reproductive success in Ozark tailwater rivers","interactions":[],"lastModifiedDate":"2012-03-12T17:20:11","indexId":"70024996","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"Factors influencing brown trout reproductive success in Ozark tailwater rivers","docAbstract":"The reproductive success of brown trout Salmo trutta in White River, Arkansas, tailwater reaches is highly variable, resulting in the need for supplemental stocking. A better understanding of the physical and biotic factors affecting reproduction and survival would enhance the contribution of wild fish. We compared fecundity, reproductive chronology, physical habitat, water quality, trout density, food availability, diet, predation, and competitive interactions among four tailwater reaches to identify factors influencing brown trout reproductive success. The fecundity and condition factor of prespawning brown trout were significantly lower at Beaver Tailwater, a reach known for reproductive failure, than at other sites, among which no differences were found. Brown trout spawning was observed from 11 October to 23 November 1996, and juvenile emergence began on 28 February 1997. Significant among-site differences were detected for spawning and juvenile microhabitat variables, but the variables fell within or near suitable or optimal ranges reported in the literature for this species. Age-0 brown trout density differed significantly among sites, but growth and condition did not. Predation by Ozark sculpin Cottus hypselurus on trout eggs or age-0 trout of any species was not observed among the 418 stomachs examined. Ozark sculpin density and diet overlap with age-0 brown trout were highest and invertebrate food availability and water fertility were lowest at Beaver Tailwater relative to the other reaches. Our findings indicate that differences in trophic conditions occur among tailwater reaches, and a lower system productive capacity was identified at Beaver Tailwater. We suggest that management efforts include refining the multispecies trout stocking regime to improve production efficiency, enhancing flow regulation, and increasing habitat complexity to increase invertebrate and fish productivity. Such efforts may lead to improved natural reproduction and the increased abundance and quality of wild trout in this system and other regulated rivers.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Transactions of the American Fisheries Society","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/1548-8659(2002)131<0698:FIBTRS>2.0.CO;2","issn":"00028487","usgsCitation":"Pender, D., and Kwak, T., 2002, Factors influencing brown trout reproductive success in Ozark tailwater rivers: Transactions of the American Fisheries Society, v. 131, no. 4, p. 698-717, https://doi.org/10.1577/1548-8659(2002)131<0698:FIBTRS>2.0.CO;2.","startPage":"698","endPage":"717","numberOfPages":"20","costCenters":[],"links":[{"id":207753,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/1548-8659(2002)131<0698:FIBTRS>2.0.CO;2"},{"id":232940,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"131","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0ec2e4b0c8380cd535f1","contributors":{"authors":[{"text":"Pender, D.R.","contributorId":80460,"corporation":false,"usgs":true,"family":"Pender","given":"D.R.","email":"","affiliations":[],"preferred":false,"id":403381,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kwak, T.J.","contributorId":104236,"corporation":false,"usgs":true,"family":"Kwak","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":403382,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":47814,"text":"fs15302 - 2002 - Ospreys in Oregon and the Pacific Northwest","interactions":[],"lastModifiedDate":"2017-03-31T11:28:48","indexId":"fs15302","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"153-02","title":"Ospreys in Oregon and the Pacific Northwest","docAbstract":"From early April through September each year, famous residents grace the small western town of Corvallis, Oregon. Two ospreys have become mascots of the town since the pair's arrival in 1994. Their nest, built on a 90-foot power pole near the twin bridges over the Willamette River, could be seen by many commuters on their way in and out of town. After the 2002 nesting season, the nest was moved a short distance downriver to a constructed nesting platform because sticks sometimes dropped from the huge nest onto power lines below and caused power outages. At the new location, the pair can once again raise a family of young, their general well being monitored by the 50,000 residents of the community.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/fs15302","usgsCitation":"Henny, C.J., Kaiser, J.L., and Grove, R.A., 2002, Ospreys in Oregon and the Pacific Northwest (Revised Sep 2005): U.S. Geological Survey Fact Sheet 153-02, 4 p., https://doi.org/10.3133/fs15302.","productDescription":"4 p.","startPage":"1","endPage":"4","onlineOnly":"Y","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":123652,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/fs/2002/0153/coverthb.jpg"},{"id":4023,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/fs/2002/0153/fs15302.pdf","text":"Report","size":"1.5 MB","linkFileType":{"id":1,"text":"pdf"},"description":"FS 153-02"}],"edition":"Revised Sep 2005","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae5e4b07f02db68a4f7","contributors":{"authors":[{"text":"Henny, Charles J. 0000-0001-7474-350X hennyc@usgs.gov","orcid":"https://orcid.org/0000-0001-7474-350X","contributorId":3461,"corporation":false,"usgs":true,"family":"Henny","given":"Charles","email":"hennyc@usgs.gov","middleInitial":"J.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":true,"id":236292,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kaiser, James L.","contributorId":57033,"corporation":false,"usgs":true,"family":"Kaiser","given":"James","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":236294,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Grove, Robert A.","contributorId":52134,"corporation":false,"usgs":true,"family":"Grove","given":"Robert","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":236293,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70024995,"text":"70024995 - 2002 - Does increasing daylength control seasonal changes in clutch sizes of Northern Pintails (<i>Anas acuta</i>)?","interactions":[],"lastModifiedDate":"2018-01-02T11:48:04","indexId":"70024995","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3544,"text":"The Auk","onlineIssn":"1938-4254","printIssn":"0004-8038","active":true,"publicationSubtype":{"id":10}},"title":"Does increasing daylength control seasonal changes in clutch sizes of Northern Pintails (<i>Anas acuta</i>)?","docAbstract":"<p><span>We evaluated spatiotemporal variation in clutch sizes of Northern Pintails (pintails; </span><i>Anas acuta</i><span>) nesting in California (1985 to 1996), North Dakota (1982 to 1985), Saskatchewan (1982 to 1985) and Alaska (1991 to 1993) to determine whether seasonal declines in clutch size varied in ways that were consistent with a controlling influence of increasing day length. Pintails began nesting in mid-March in California, mid-April in North Dakota and Saskatchewan, and mid-May in Alaska. Observed durations of nesting were 70 ± 2.6 days (SE) in California, 60 ± 6.3 days in North Dakota, 66 ± 1.3 days in Saskatchewan, and 42 ± 0.7 days in Alaska. Annual differences were the principal source of variation in mean clutch sizes (σ̂</span><sub>Y</sub><sup>2</sup><span> = 0.15, SE = 0.049), which varied little among study locations (σ̂</span><sub>A</sub><sup>2</sup><span> = 0.002, SE = 0.013). Predicted rates of seasonal decline in clutch sizes increased with latitude early in the nesting season, but declined as the nesting season progressed, except in California. Rates of decline in clutch sizes thus were not directly related to rates of increase in day length. Predicted declines in numbers of eggs per clutch over the nesting season were similar for all four locations (range, 3.05–3.12) despite wide variation in durations of nesting. Evidence suggests that reduced nutrient availability during nesting contributes to a higher rate of decline in clutch sizes in Alaska than in temperate regions. Pintails that nest early lay large initial clutches, but thereafter clutch sizes decline rapidly and breeding terminates early. This reproductive strategy is adaptive because young that hatch earliest exhibit the highest survival rates; however, the conversion of grassland to cropland on the primary prairie breeding grounds has reduced hatching rates of clutches laid early in the nesting season. Under these conditions, the limited capacity to renest in late spring on their prairie breeding grounds probably has contributed to Pintail population declines.</span></p>","language":"English","publisher":"American Ornithological Society","doi":"10.1642/0004-8038(2002)119[0498:DIDCSC]2.0.CO;2","issn":"00048038","usgsCitation":"Krapu, G., Sargeant, G., and Perkins, A., 2002, Does increasing daylength control seasonal changes in clutch sizes of Northern Pintails (<i>Anas acuta</i>)?: The Auk, v. 119, no. 2, p. 498-506, https://doi.org/10.1642/0004-8038(2002)119[0498:DIDCSC]2.0.CO;2.","productDescription":"9 p.","startPage":"498","endPage":"506","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":478634,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1642/0004-8038(2002)119[0498:didcsc]2.0.co;2","text":"Publisher Index Page"},{"id":232906,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"119","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0392e4b0c8380cd50544","contributors":{"authors":[{"text":"Krapu, Gary L.","contributorId":56994,"corporation":false,"usgs":true,"family":"Krapu","given":"Gary L.","affiliations":[],"preferred":false,"id":403380,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sargeant, G.A.","contributorId":51681,"corporation":false,"usgs":true,"family":"Sargeant","given":"G.A.","email":"","affiliations":[],"preferred":false,"id":403379,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Perkins, A.E.H.","contributorId":32334,"corporation":false,"usgs":true,"family":"Perkins","given":"A.E.H.","email":"","affiliations":[],"preferred":false,"id":403378,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70024615,"text":"70024615 - 2002 - Educational background and professional participation by federal wildlife biologists: Implications for science, management, and The Wildlife Society","interactions":[],"lastModifiedDate":"2018-03-28T11:56:58","indexId":"70024615","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3779,"text":"Wildlife Society Bulletin","onlineIssn":"1938-5463","printIssn":"0091-7648","active":true,"publicationSubtype":{"id":10}},"title":"Educational background and professional participation by federal wildlife biologists: Implications for science, management, and The Wildlife Society","docAbstract":"Over 2,000 people are employed in wildlife biology in the United States federal government. The size of this constituency motivated me to examine the amount of formal education federal biologists have received and the extent of continuing education they undertake by reading journals or attending scientific meetings. Most federal biologists who are members of The Wildlife Society (TWS) have a graduate degree. However, one-third have only a Bachelor of Science degree, despite the current trend toward hiring people with graduate degrees. Most federal biologists are not research biologists. Numbers of journals subscribed to was positively related to educational level. Less than one-third of all wildlife biologists employed by the United States Fish and Wildlife Service are members of TWS or subscribe to any of its journals. In contrast, the majority of presenters at the TWS 2000 Annual Conference were research biologists and members of TWS. The failure of many federal wildlife biologists to read scientific literature or attend professional meetings indicates a failure to promote the importance of continuing education in the federal workplace. I identify 2 potential adverse impacts of this failing: an inability to recognize important and relevant scientific contributions and an ineffectiveness in carrying out adaptive management.","language":"English","publisher":"Wiley","usgsCitation":"Schmutz, J.A., 2002, Educational background and professional participation by federal wildlife biologists: Implications for science, management, and The Wildlife Society: Wildlife Society Bulletin, v. 30, no. 2, p. 594-598.","productDescription":"5 p.","startPage":"594","endPage":"598","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":233235,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":337974,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://www.jstor.org/stable/3784520"}],"volume":"30","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a05aee4b0c8380cd50edc","contributors":{"authors":[{"text":"Schmutz, Joel A. 0000-0002-6516-0836 jschmutz@usgs.gov","orcid":"https://orcid.org/0000-0002-6516-0836","contributorId":1805,"corporation":false,"usgs":true,"family":"Schmutz","given":"Joel","email":"jschmutz@usgs.gov","middleInitial":"A.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":401913,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70024985,"text":"70024985 - 2002 - Terrestrial habitat use by pacific pond turtles in a Mediterranean climate","interactions":[],"lastModifiedDate":"2012-03-12T17:20:08","indexId":"70024985","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3451,"text":"Southwestern Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Terrestrial habitat use by pacific pond turtles in a Mediterranean climate","docAbstract":"The Pacific pond turtle (Clemmys marmorata) is a widespread aquatic turtle in the Pacific states, yet relatively little is known about its ecology. We radio-tracked 34 individuals during an 8 year period in 4 small coastal creeks in central California to determine their use of terrestrial upland habitats. Most of our turtles left the drying arroyos during late summer and returned after winter floods. Turtles spent an average of 111 days at these land refuges, which were located in woodland and coastal sage scrub habitats an average of 50 m from arroyos. Most gravid females left the creeks during June to oviposit in sunny upland habitats with low vegetation structure, such as grazed pastures. Nest sites were an average of 28 m from creeks. Terrestrial basking sites averaged 4.5 m from streams, but were only used for a few days. We believe the use of terrestrial upland sites was related to the Mediterranean climate and the resulting unique hydrodynamics of the small coastal arroyos (dry in summer and flooding in winter).","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Southwestern Naturalist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00384909","usgsCitation":"Rathbun, G.B., Scott, N., and Murphey, T., 2002, Terrestrial habitat use by pacific pond turtles in a Mediterranean climate: Southwestern Naturalist, v. 47, no. 2, p. 225-235.","startPage":"225","endPage":"235","numberOfPages":"11","costCenters":[],"links":[{"id":233332,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"47","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba55de4b08c986b3209ce","contributors":{"authors":[{"text":"Rathbun, G. B.","contributorId":106044,"corporation":false,"usgs":true,"family":"Rathbun","given":"G.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":403348,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Scott, N.J. Jr.","contributorId":8407,"corporation":false,"usgs":true,"family":"Scott","given":"N.J.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":403346,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Murphey, T.G.","contributorId":38927,"corporation":false,"usgs":true,"family":"Murphey","given":"T.G.","email":"","affiliations":[],"preferred":false,"id":403347,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70024986,"text":"70024986 - 2002 - Archiving, processing, and disseminating ASTER products at the USGS EROS Data Center","interactions":[],"lastModifiedDate":"2024-09-19T14:30:42.960428","indexId":"70024986","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Archiving, processing, and disseminating ASTER products at the USGS EROS Data Center","docAbstract":"The U.S. Geological Survey EROS Data Center archives, processes, and disseminates Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data products. The ASTER instrument is one of five sensors onboard the Earth Observing System's Terra satellite launched December 18, 1999. ASTER collects broad spectral coverage with high spatial resolution at near infrared, shortwave infrared, and thermal infrared wavelengths with ground resolutions of 15, 30, and 90 meters, respectively. The ASTER data are used in many ways to understand local and regional earth-surface processes. Applications include land-surface climatology, volcanology, hazards monitoring, geology, agronomy, land cover change, and hydrology. The ASTER data are available for purchase from the ASTER Ground Data System in Japan and from the Land Processes Distributed Active Archive Center in the United States, which receives level 1A and level 1B data from Japan on a routine basis. These products are archived and made available to the public within 48 hours of receipt. The level 1A and level 1B data are used to generate higher level products that include routine and on-demand decorrelation stretch, brightness temperature at the sensor, emissivity, surface reflectance, surface kinetic temperature, surface radiance, polar surface and cloud classification, and digital elevation models. This paper describes the processes and procedures used to archive, process, and disseminate standard and on-demand higher level ASTER products at the Land Processes Distributed Active Archive Center.","conferenceTitle":"Earth Observing Systems VII","conferenceDate":"July 7-10, 2002","conferenceLocation":"Seattle, WA","language":"English","publisher":"SPIE","doi":"10.1117/12.451575","issn":"0277786X","usgsCitation":"Jones, B., and Tolk, B.L., 2002, Archiving, processing, and disseminating ASTER products at the USGS EROS Data Center, Earth Observing Systems VII, v. 4814, Seattle, WA, July 7-10, 2002, p. 402-413, https://doi.org/10.1117/12.451575.","productDescription":"12 p.","startPage":"402","endPage":"413","numberOfPages":"12","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":233333,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"4814","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ed51e4b0c8380cd49729","contributors":{"editors":[{"text":"Barnes W.L.","contributorId":128354,"corporation":true,"usgs":false,"organization":"Barnes W.L.","id":536543,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Jones, Brenda 0000-0003-4941-5349 bkjones@usgs.gov","orcid":"https://orcid.org/0000-0003-4941-5349","contributorId":2994,"corporation":false,"usgs":true,"family":"Jones","given":"Brenda","email":"bkjones@usgs.gov","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true},{"id":423,"text":"National Geospatial Program","active":true,"usgs":true}],"preferred":true,"id":403349,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tolk, Brian L. 0000-0002-9060-0266 tolk@usgs.gov","orcid":"https://orcid.org/0000-0002-9060-0266","contributorId":2992,"corporation":false,"usgs":true,"family":"Tolk","given":"Brian","email":"tolk@usgs.gov","middleInitial":"L.","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":true,"id":403350,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70024994,"text":"70024994 - 2002 - Genetic characterization of infectious hematopoietic necrosis virus of coastal salmonid stocks in Washington State","interactions":[],"lastModifiedDate":"2016-04-26T15:16:41","indexId":"70024994","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2177,"text":"Journal of Aquatic Animal Health","active":true,"publicationSubtype":{"id":10}},"title":"Genetic characterization of infectious hematopoietic necrosis virus of coastal salmonid stocks in Washington State","docAbstract":"<p>Infectious hematopoietic necrosis virus (IHNV) is a pathogen that infects many Pacific salmonid stocks from the watersheds of North America. Previous studies have thoroughly characterized the genetic diversity of IHNV isolates from Alaska and the Hagerman Valley in Idaho. To enhance understanding of the evolution and viral transmission patterns of IHNV within the Pacific Northwest geographic range, we analyzed the G gene of IHNV isolates from the coastal watersheds of Washington State by ribonuclease protection assay (RPA) and nucleotide sequencing. The RPA analysis of 23 isolates indicated that the Skagit basin IHNV isolates were relatively homogeneous as a result of the dominance of one G gene haplotype (S). Sequence analysis of 303 bases in the middle of the G gene (midG region) of 61 isolates confirmed the high frequency of a Skagit River basin sequence and identified another sequence commonly found in isolates from the Lake Washington basin. Overall, both the RPA and sequence analysis showed that the Washington coastal IHNV isolates are genetically homogeneous and have little genetic diversity. This is similar to the genetic diversity pattern of IHNV from Alaska and contrasts sharply with the high genetic diversity demonstrated for IHNV isolates from fish farms along the Snake River in Idaho. The high degree of sequence and haplotype similarity between the Washington coastal IHNV isolates and those from Alaska and British Columbia suggests that they have a common viral ancestor. Phylogenetic analyses of the isolates we studied and those from different regions throughout the virus's geographic range confirms a conserved pattern of evolution of the virus in salmonid stocks north of the Columbia River, which forms Washington's southern border.</p>","language":"English","publisher":"Taylor & Francis","doi":"10.1577/1548-8667(2002)014<0025:GCOIHN>2.0.CO;2","issn":"08997659","usgsCitation":"Emmenegger, E., and Kurath, G., 2002, Genetic characterization of infectious hematopoietic necrosis virus of coastal salmonid stocks in Washington State: Journal of Aquatic Animal Health, v. 14, no. 1, p. 25-34, https://doi.org/10.1577/1548-8667(2002)014<0025:GCOIHN>2.0.CO;2.","productDescription":"10 p.","startPage":"25","endPage":"34","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":232905,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":207729,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/1548-8667(2002)014<0025:GCOIHN>2.0.CO;2"}],"country":"United States","state":"Washington","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -124.617919921875,\n              48.356249029540706\n            ],\n            [\n              -124.6893310546875,\n              48.25028349849022\n            ],\n            [\n              -124.6783447265625,\n              47.98624517426206\n            ],\n            [\n              -124.38720703124999,\n              47.65428791076272\n            ],\n            [\n              -124.15649414062499,\n              46.93901161506044\n            ],\n            [\n              -123.98071289062499,\n              46.645665192584936\n            ],\n            [\n              -121.9317626953125,\n              47.148633511301426\n            ],\n            [\n              -121.871337890625,\n              47.73193447949174\n            ],\n            [\n              -121.39343261718749,\n              48.99463598353408\n            ],\n            [\n              -122.794189453125,\n              48.99463598353408\n            ],\n            [\n              -122.42614746093749,\n              48.61838518688487\n            ],\n            [\n              -122.54150390625,\n              48.41826449418743\n            ],\n            [\n              -122.25585937500001,\n              47.96785877999253\n            ],\n            [\n              -122.4151611328125,\n              47.73562905149295\n            ],\n            [\n              -122.36572265625,\n              47.37231462056695\n            ],\n            [\n              -122.72277832031251,\n              47.148633511301426\n            ],\n            [\n              -122.83264160156251,\n              47.42065432071321\n            ],\n            [\n              -123.0908203125,\n              47.39834920035926\n            ],\n            [\n              -122.73925781250001,\n              47.824220149350246\n            ],\n            [\n              -123.57971191406249,\n              48.14776316994868\n            ],\n            [\n              -124.617919921875,\n              48.356249029540706\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"14","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a156be4b0c8380cd54de1","contributors":{"authors":[{"text":"Emmenegger, E.J.","contributorId":7463,"corporation":false,"usgs":true,"family":"Emmenegger","given":"E.J.","email":"","affiliations":[],"preferred":false,"id":403376,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kurath, Gael 0000-0003-3294-560X gkurath@usgs.gov","orcid":"https://orcid.org/0000-0003-3294-560X","contributorId":100522,"corporation":false,"usgs":true,"family":"Kurath","given":"Gael","email":"gkurath@usgs.gov","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":true,"id":403377,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
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