No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr81936","usgsCitation":"Water Resources Division, U.S. Geological Survey, 1981, Aeroradioactivity map of the Blood Mountain-Chattahoochee area, Georgia and North Carolina: U.S. Geological Survey Open-File Report 81-936, 2 Plates: 34.42 x 45.40 inches and 34.42 x 45.40 inches, https://doi.org/10.3133/ofr81936.","productDescription":"2 Plates: 34.42 x 45.40 inches and 34.42 x 45.40 inches","costCenters":[],"links":[{"id":161781,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":85549,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1981/0936/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":85548,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1981/0936/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":413559,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_12218.htm","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Georgia, North Carolina","otherGeospatial":"Blood Mountain-Chattahoochee area","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -84.083,\n 35.289\n ],\n [\n -84.083,\n 34.583\n ],\n [\n -83.036,\n 34.583\n ],\n [\n -83.036,\n 35.289\n ],\n [\n -84.083,\n 35.289\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae4e4b07f02db689a73","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":531830,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70182484,"text":"70182484 - 1981 - Physiological and immunological differences among three stocks of coho salmon, Oncorhynchus kisutch","interactions":[],"lastModifiedDate":"2017-02-23T12:27:18","indexId":"70182484","displayToPublicDate":"1981-01-01T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":21,"text":"Thesis"},"publicationSubtype":{"id":28,"text":"Thesis"},"title":"Physiological and immunological differences among three stocks of coho salmon, Oncorhynchus kisutch","docAbstract":"No abstract available
","language":"English","publisher":"University of Washington","publisherLocation":"Seattle, WA","usgsCitation":"D.M., G., 1981, Physiological and immunological differences among three stocks of coho salmon, Oncorhynchus kisutch.","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":336094,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"publicComments":"Master's Thesis","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58b002dee4b01ccd54fb282b","contributors":{"authors":[{"text":"D.M., Gould","contributorId":152299,"corporation":false,"usgs":false,"family":"D.M.","given":"Gould","email":"","affiliations":[],"preferred":false,"id":671244,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":85371,"text":"85371 - 1981 - Improved population estimates through the use of auxiliary information","interactions":[],"lastModifiedDate":"2017-12-27T12:50:17","indexId":"85371","displayToPublicDate":"1981-01-01T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Improved population estimates through the use of auxiliary information","docAbstract":"When estimating the size of a population of birds, the investigator may have, in addition to an estimator based on a statistical sample, information on one of several auxiliary variables, such as: (1) estimates of the population made on previous occasions, (2) measures of habitat variables associated with the size of the population, and (3) estimates of the population sizes of other species that correlate with the species of interest. Although many studies have described the relationships between each of these kinds of data and the population size to be estimated, very little work has been done to improve the estimator by incorporating such auxiliary information. A statistical methodology termed 'empirical Bayes' seems to be appropriate to these situations. The potential that empirical Bayes methodology has for improved estimation of the population size of the Mallard (Anas platyrhynchos) is explored. In the example considered, three empirical Bayes estimators were found to reduce the error by one-fourth to one-half of that of the usual estimator.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Estimating numbers of terrestrial birds. Cooper Ornithological Society Studies in Avian Biology","largerWorkSubtype":{"id":4,"text":"Other Government Series"},"language":"English","usgsCitation":"Johnson, D.H., 1981, Improved population estimates through the use of auxiliary information, chap. of Estimating numbers of terrestrial birds. Cooper Ornithological Society Studies in Avian Biology, p. 436-440.","productDescription":"5 p.","startPage":"436","endPage":"440","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":127768,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fde4b07f02db5f5d3e","contributors":{"editors":[{"text":"Ralph, C.J.","contributorId":38252,"corporation":false,"usgs":true,"family":"Ralph","given":"C.J.","email":"","affiliations":[],"preferred":false,"id":504443,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Scott, J. M.","contributorId":55766,"corporation":false,"usgs":true,"family":"Scott","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":504444,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Johnson, Douglas H. 0000-0002-7778-6641","orcid":"https://orcid.org/0000-0002-7778-6641","contributorId":70327,"corporation":false,"usgs":true,"family":"Johnson","given":"Douglas","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":295964,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70182485,"text":"70182485 - 1981 - Serological comparison of isolates of Aeromonas salmonicida ssp. Salmonicida","interactions":[],"lastModifiedDate":"2017-02-23T12:28:42","indexId":"70182485","displayToPublicDate":"1981-01-01T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":21,"text":"Thesis"},"publicationSubtype":{"id":28,"text":"Thesis"},"title":"Serological comparison of isolates of Aeromonas salmonicida ssp. Salmonicida","docAbstract":"No abstract available
","language":"English","publisher":"University of Washington","publisherLocation":"Seattle, WA","usgsCitation":"Hahnel, G., 1981, Serological comparison of isolates of Aeromonas salmonicida ssp. Salmonicida.","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":336096,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"publicComments":"Master's Thesis","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58b002dde4b01ccd54fb2829","contributors":{"authors":[{"text":"Hahnel, G.B.","contributorId":79431,"corporation":false,"usgs":true,"family":"Hahnel","given":"G.B.","email":"","affiliations":[],"preferred":false,"id":671245,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70182486,"text":"70182486 - 1981 - Effects of chronic exposure to arsenic trioxide on smoltification, downstream migration, and seawater adaptation of coho salmon (Oncorhynchus kisutch)","interactions":[],"lastModifiedDate":"2017-02-23T12:30:28","indexId":"70182486","displayToPublicDate":"1981-01-01T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":21,"text":"Thesis"},"publicationSubtype":{"id":28,"text":"Thesis"},"title":"Effects of chronic exposure to arsenic trioxide on smoltification, downstream migration, and seawater adaptation of coho salmon (Oncorhynchus kisutch)","docAbstract":"No abstract available
","language":"English","publisher":"University of Washington","publisherLocation":"Seattle, WA","usgsCitation":"Nichols, J., 1981, Effects of chronic exposure to arsenic trioxide on smoltification, downstream migration, and seawater adaptation of coho salmon (Oncorhynchus kisutch).","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":336097,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"publicComments":"Master's Thesis","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58b002dde4b01ccd54fb2827","contributors":{"authors":[{"text":"Nichols, J.W.","contributorId":97290,"corporation":false,"usgs":true,"family":"Nichols","given":"J.W.","email":"","affiliations":[],"preferred":false,"id":671246,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70182499,"text":"70182499 - 1981 - Application of spatial analysis techniques to remotely sensed images on ancillary geocoded data","interactions":[],"lastModifiedDate":"2017-03-22T15:33:03","indexId":"70182499","displayToPublicDate":"1981-01-01T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Application of spatial analysis techniques to remotely sensed images on ancillary geocoded data","docAbstract":"No abstract available.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Computer mapping of natural resources and the environment, plus satellite derived data applications","language":"English","publisher":"Harvard University Laboratory of Computer Graphics and Spatial Analysis","publisherLocation":"Cambridge, MA","usgsCitation":"Greenlee, D.D., 1981, Application of spatial analysis techniques to remotely sensed images on ancillary geocoded data, chap. of Computer mapping of natural resources and the environment, plus satellite derived data applications, p. 111-120.","productDescription":"10 p. ","startPage":"111","endPage":"120","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":336115,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58b002dde4b01ccd54fb2823","contributors":{"authors":[{"text":"Greenlee, D. D.","contributorId":20079,"corporation":false,"usgs":true,"family":"Greenlee","given":"D.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":671279,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70181762,"text":"70181762 - 1981 - The physiological response of fishes to the stress of intensive aquaculture in recirculation systems","interactions":[],"lastModifiedDate":"2017-02-13T14:11:24","indexId":"70181762","displayToPublicDate":"1981-01-01T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"The physiological response of fishes to the stress of intensive aquaculture in recirculation systems","docAbstract":"No abstract available
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings world symposium on aquaculture in heated effluents and recirculatoin systems","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"World symposium on aquaculture in heated effluents and recirculatoin systems","language":"English","publisher":"European inland fisheries advisory commission","usgsCitation":"Wedemeyer, G., 1981, The physiological response of fishes to the stress of intensive aquaculture in recirculation systems, in Proceedings world symposium on aquaculture in heated effluents and recirculatoin systems, p. 3-18.","productDescription":"16 p. ","startPage":"3","endPage":"18","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":335251,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58a2d3c3e4b0c82512869a32","contributors":{"editors":[{"text":"Tiews, K.","contributorId":181510,"corporation":false,"usgs":false,"family":"Tiews","given":"K.","email":"","affiliations":[],"preferred":false,"id":668434,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Wedemeyer, Gary","contributorId":94244,"corporation":false,"usgs":true,"family":"Wedemeyer","given":"Gary","affiliations":[],"preferred":false,"id":668433,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70181761,"text":"70181761 - 1981 - Strains of infectious hematopoietic necrosis (IHN) virus may be identified by structural protein differences","interactions":[{"subject":{"id":70181761,"text":"70181761 - 1981 - Strains of infectious hematopoietic necrosis (IHN) virus may be identified by structural protein differences","indexId":"70181761","publicationYear":"1981","noYear":false,"title":"Strains of infectious hematopoietic necrosis (IHN) virus may be identified by structural protein differences"},"predicate":"IS_PART_OF","object":{"id":1013602,"text":"1013602 - 1981 - Fish biologics: Serodiagnostics and vaccines","indexId":"1013602","publicationYear":"1981","noYear":false,"title":"Fish biologics: Serodiagnostics and vaccines"},"id":1}],"isPartOf":{"id":1013602,"text":"1013602 - 1981 - Fish biologics: Serodiagnostics and vaccines","indexId":"1013602","publicationYear":"1981","noYear":false,"title":"Fish biologics: Serodiagnostics and vaccines"},"lastModifiedDate":"2017-07-25T15:27:44","indexId":"70181761","displayToPublicDate":"1981-01-01T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"seriesTitle":{"id":1384,"text":"Developments in Biological Standardization","active":false,"publicationSubtype":{"id":19}},"title":"Strains of infectious hematopoietic necrosis (IHN) virus may be identified by structural protein differences","docAbstract":"The development of an effective vaccine to infectious hematopoietic necrosis virus (IHNV) in fish requires a knowledge of the virus serotypes in nature. At least two serotypes were found among three IHNV strains (12). Attempts in our laboratory to extend this study with additional virus strains by classical immunological techniques were unsatisfactory. Thus, we sought another method for comparing IHNV strains. We report here that different strains of IHNV can be distinguished by the sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) of the viron polypeptides. Major strain differences were noted in the molecular weights of the envelope glycoprotein, G, and the nucleocapsid protein, N.
The strains of IHNV were established from samples taken at several locations in California, Oregon, Washington, and Alaska. These strains were also characterized by growth rate at 15° and 18°C and average plaque size. Distinct differences in growth rate at the two temperatures were found for the California strains. The California strains were distinguished from the other strains by the production of minute plaques.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Fish biologics: Serodiagnostics and vaccines (Developments in biological standardization, volume 49)","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"International Symposium on Fish Biologics","conferenceDate":"April 26-30, 1981","conferenceLocation":"Leetown, WV","language":"English","publisher":"S. Karger","publisherLocation":"Basel, Switzerland","issn":"0301-5149","isbn":"3-8055-3471-X","usgsCitation":"Leong, J., Hsu, Y.L., Engelking, H.M., and Mulcahy, D.M., 1981, Strains of infectious hematopoietic necrosis (IHN) virus may be identified by structural protein differences, in Fish biologics: Serodiagnostics and vaccines (Developments in biological standardization, volume 49), v. 49, Leetown, WV, April 26-30, 1981, p. 43-55.","productDescription":"13 p. ","startPage":"43","endPage":"55","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":335250,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":342721,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://www.karger.com/Book/Home/220215"}],"volume":"49","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58a2d3c3e4b0c82512869a34","contributors":{"editors":[{"text":"Anderson, D. P.","contributorId":32469,"corporation":false,"usgs":true,"family":"Anderson","given":"D.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":698963,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Leong, J.C.","contributorId":152183,"corporation":false,"usgs":false,"family":"Leong","given":"J.C.","email":"","affiliations":[{"id":25665,"text":"Oregon State University, Corvallis, Oregon","active":true,"usgs":false}],"preferred":false,"id":668429,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hsu, Ya Li","contributorId":152436,"corporation":false,"usgs":false,"family":"Hsu","given":"Ya","email":"","middleInitial":"Li","affiliations":[{"id":25665,"text":"Oregon State University, Corvallis, Oregon","active":true,"usgs":false}],"preferred":false,"id":668430,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Engelking, H. Mark","contributorId":168718,"corporation":false,"usgs":false,"family":"Engelking","given":"H.","email":"","middleInitial":"Mark","affiliations":[{"id":16267,"text":"Oregon Department of Fish and Wildlife, Corvallis, Oregon 97333, USA","active":true,"usgs":false}],"preferred":false,"id":668431,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mulcahy, Daniel M. dmulcahy@usgs.gov","contributorId":3102,"corporation":false,"usgs":true,"family":"Mulcahy","given":"Daniel","email":"dmulcahy@usgs.gov","middleInitial":"M.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":668432,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":1001588,"text":"1001588 - 1981 - The role of nutrient reserves in mallard reproduction","interactions":[],"lastModifiedDate":"2018-01-02T11:04:39","indexId":"1001588","displayToPublicDate":"1981-01-01T00:00:00","publicationYear":"1981","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":"The role of nutrient reserves in mallard reproduction","docAbstract":"Mallard (Anas platyrhynchos) populations breeding in temperate North America obtain a significant part of the energy and lipid requirements of reproduction at sites occupied prior to arrival on the breeding grounds. Protein for egg formation, however, is obtained principally from the diet during the nesting period. Both sexes arrive heavy and fat in North Dakota but experience substantial weight loss and lipid depletion during the nesting cycle. Weight loss is most pronounced among females and averages 25% from prelaying to late incubation. Body weights of both sexes are positively correlated with carcass lipid content. The paired male draws upon lipids early in the nesting season when an activity center is being established and defended and when females are preparing to nest. The female's lipid reserves are utilized primarily during laying and early incubation. The significance of lipid reserves diminishes as the nesting season progresses, and females do not acquire substantial lipid stores prior to renesting when the initial clutch is destroyed. The magnitude of lipid reserves carried in female carcasses is positively correlated with clutch size from mid-April to early June. Protein transfer for egg formation from flight and leg muscle and body organs can account for only a small part of the protein requirement for the clutch. By utilizing lipid reserves to meet energy requirements, the female can acquire sufficient protein from the diet to produce a large initial clutch even when foods are relatively scarce, whereas the renesting female must rely entirely upon food resources available at the breeding site for its nutrient and energy requirements.
","language":"English","publisher":"American Ornithological Society","usgsCitation":"Krapu, G.L., 1981, The role of nutrient reserves in mallard reproduction: The Auk, v. 98, no. 1, p. 29-38.","productDescription":"10 p.","startPage":"29","endPage":"38","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":133779,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":341274,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://www.jstor.org/stable/4085606"}],"volume":"98","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a6fe4b07f02db640de7","contributors":{"authors":[{"text":"Krapu, Gary L. 0000-0001-8482-6130 gkrapu@usgs.gov","orcid":"https://orcid.org/0000-0001-8482-6130","contributorId":3074,"corporation":false,"usgs":true,"family":"Krapu","given":"Gary","email":"gkrapu@usgs.gov","middleInitial":"L.","affiliations":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"preferred":false,"id":311315,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":1001589,"text":"1001589 - 1981 - The importance of shallow wetlands to waterfowl production","interactions":[],"lastModifiedDate":"2018-01-02T11:01:54","indexId":"1001589","displayToPublicDate":"1981-01-01T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2891,"text":"North Dakota Outdoors","active":true,"publicationSubtype":{"id":10}},"title":"The importance of shallow wetlands to waterfowl production","docAbstract":"Abstract has not been submitted","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"North Dakota Outdoors","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Krapu, G., 1981, The importance of shallow wetlands to waterfowl production: North Dakota Outdoors, v. 44, no. 5, p. 2-4.","productDescription":"3 p.","startPage":"2","endPage":"4","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":130417,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"44","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a85e4b07f02db64d690","contributors":{"authors":[{"text":"Krapu, Gary L.","contributorId":56994,"corporation":false,"usgs":true,"family":"Krapu","given":"Gary L.","affiliations":[],"preferred":false,"id":311316,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":1001697,"text":"1001697 - 1981 - Use of 35-mm color aerial photography to acquire mallard sex ratio data","interactions":[],"lastModifiedDate":"2017-10-20T11:40:12","indexId":"1001697","displayToPublicDate":"1981-01-01T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3052,"text":"Photogrammetric Engineering and Remote Sensing","active":true,"publicationSubtype":{"id":10}},"title":"Use of 35-mm color aerial photography to acquire mallard sex ratio data","docAbstract":"A conventional 35-mm camera equipped with an f2.8 135-mm lens and ASA 64 color film was used to acquire sex ratio data on mallards (Anas platyrhynchos) wintering in the Platte River Valley of south-central Nebraska. Prelight focusing for a distance of 30.5 metres and setting of shutter speed at 1/2000 of a second eliminated focusing and reduced image motion problems and resulted in high-resolution, large-scale aerial photography of small targets. This technique has broad application to the problem of determining sex ratios of various species of waterfowl concentrated on wintering and staging areas. The aerial photographic method was cheaper than the ground ocular method when costs were compared on a per-100 bird basis.
","language":"English","publisher":"American Society for Photogrammetry & Remote Sensing","usgsCitation":"Ferguson, E.L., Jorde, D., and Sease, J.L., 1981, Use of 35-mm color aerial photography to acquire mallard sex ratio data: Photogrammetric Engineering and Remote Sensing, v. 47, no. 6, p. 823-827.","productDescription":"4 p.","startPage":"823","endPage":"827","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":134025,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":337020,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://www.asprs.org/1981_jun_823-827"}],"country":"United States","state":"Nebraska","otherGeospatial":"Platte River Valley","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -96.40777587890625,\n 41.272129916452585\n ],\n [\n -96.27937316894531,\n 41.272129916452585\n ],\n [\n -96.27937316894531,\n 41.343824581185686\n ],\n [\n -96.40777587890625,\n 41.343824581185686\n ],\n [\n -96.40777587890625,\n 41.272129916452585\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"47","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a18e4b07f02db605239","contributors":{"authors":[{"text":"Ferguson, Edgar L.","contributorId":77210,"corporation":false,"usgs":true,"family":"Ferguson","given":"Edgar","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":311538,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jorde, Dennis G. djorde@usgs.gov","contributorId":12804,"corporation":false,"usgs":true,"family":"Jorde","given":"Dennis G.","email":"djorde@usgs.gov","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":false,"id":311537,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sease, John L.","contributorId":61009,"corporation":false,"usgs":false,"family":"Sease","given":"John","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":311539,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70011925,"text":"70011925 - 1981 - Subcritical crack propagation in westerly granite: An investigation into the double torsion method","interactions":[],"lastModifiedDate":"2013-01-18T13:22:02","indexId":"70011925","displayToPublicDate":"1981-01-01T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2071,"text":"International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts","active":true,"publicationSubtype":{"id":10}},"title":"Subcritical crack propagation in westerly granite: An investigation into the double torsion method","docAbstract":"[No abstract available]","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/0148-9062(81)90008-5","issn":"01489062","usgsCitation":"Swanson, P., 1981, Subcritical crack propagation in westerly granite: An investigation into the double torsion method: International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, v. 18, no. 5, p. 445-449, https://doi.org/10.1016/0148-9062(81)90008-5.","productDescription":"p.445-449","startPage":"445","endPage":"449","numberOfPages":"5","costCenters":[],"links":[{"id":265945,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0148-9062(81)90008-5"},{"id":220867,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"18","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9d08e4b08c986b31d5d5","contributors":{"authors":[{"text":"Swanson, P.L.","contributorId":63683,"corporation":false,"usgs":true,"family":"Swanson","given":"P.L.","email":"","affiliations":[],"preferred":false,"id":362303,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011700,"text":"70011700 - 1981 - The distribution of uranium and thorium in granitic rocks of the basin and range province, Western United States","interactions":[],"lastModifiedDate":"2025-04-09T16:14:25.951222","indexId":"70011700","displayToPublicDate":"1981-01-01T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2302,"text":"Journal of Geochemical Exploration","active":true,"publicationSubtype":{"id":10}},"title":"The distribution of uranium and thorium in granitic rocks of the basin and range province, Western United States","docAbstract":"Some secondary uranium deposits are thought to have formed from uranium derived by the weathering of silicic igneous rocks such as granites, rhyolites, and tuffs. A regional geochemical survey was made to determine the distribution of uranium and thorium in granitic rocks of the Basin and Range province in order to evaluate the potential for secondary uranium occurrences in the area. The resulting geochemical maps of uranium, thorium, and the Th:U ratio may be useful in locating target areas for uranium exploration.
The granites were sampled according to a five-level, nested, analysis-of-variance design, permitting estimates to be made of the variance due to differences between:(1) two-degree cells; (2) one-degree cells; (3) plutons; (4) samples; and (5) analyses. The cells are areas described in units of degrees of latitude and longitude. The results show that individual plutons tend to differ in uranium and thorium concentrations, but that each pluton tends to be relatively homogeneous. Only small amounts of variance occur at the two degree and the between-analyses levels. The three geochemical maps that were prepared are based on one-degree cell means. The reproducibility of the maps is U > Th ⪢ Th:U.
These geochemical maps may be used in three methods of locating target areas for uranium exploration. The first method uses the concept that plutons containing the greatest amounts of uranium may supply the greatest amounts of uranium for the formation of secondary uranium occurrences. The second method is to examine areas with high thorium contents, because thorium and uranium are initially highly correlated but much uranium could be lost by weathering. The third method is to locate areas in which the plutons have particularly high Th:U ratios. Because uranium, but not thorium, is leached by chemical weathering, high Th:U ratios suggest a possible loss of uranium and possibly a greater potential for secondary uranium occurrences to be found in the area.
","language":"English","publisher":"Elsevier","doi":"10.1016/0375-6742(81)90101-1","usgsCitation":"McNeal, J., Lee, D.E., and Millard, H.T., 1981, The distribution of uranium and thorium in granitic rocks of the basin and range province, Western United States: Journal of Geochemical Exploration, v. 14, p. 25-40, https://doi.org/10.1016/0375-6742(81)90101-1.","productDescription":"16 p.","startPage":"25","endPage":"40","costCenters":[],"links":[{"id":221248,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arizona, California, Nevada, Utah","otherGeospatial":"Western United 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\"}}]}","volume":"14","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505baadde4b08c986b322a79","contributors":{"authors":[{"text":"McNeal, J.M.","contributorId":61817,"corporation":false,"usgs":true,"family":"McNeal","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":361754,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lee, D. E.","contributorId":96705,"corporation":false,"usgs":true,"family":"Lee","given":"D.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":361756,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Millard, Hugh T. Jr.","contributorId":67502,"corporation":false,"usgs":true,"family":"Millard","given":"Hugh","suffix":"Jr.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":361755,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70012030,"text":"70012030 - 1981 - Interaction between diapirism and sediment loading at the shelf-slope boundary, northwest Gulf of Mexico","interactions":[],"lastModifiedDate":"2012-03-12T17:19:10","indexId":"70012030","displayToPublicDate":"1981-01-01T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1742,"text":"Geo-Marine Letters","active":true,"publicationSubtype":{"id":10}},"title":"Interaction between diapirism and sediment loading at the shelf-slope boundary, northwest Gulf of Mexico","docAbstract":"During the last low stand of sea level, rivers and streams drained across the present northwestern Gulf of Mexico continental shelf depositing sediments in several shallow-water deltas near the present shelf-slope boundary. The weight of these wedges of prograded sediments triggered or augmented both subsidence of local depositional basins and upward movement of diapiric material around the basin edges. A depositional basin off the southwestern Louisiana coast records migration of the basinal axis during late Pleistocene and Holocene time indicating relative growth of diapirs along the basin margin throughout the most recent geological record. ?? 1981 A.M. 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","language":"English","publisher":"Edwards Underground Water District","usgsCitation":"Reeves, R., Maclay, R., Grimm, K.C., and Davis, M., 1981, Compilation of hydrologic data for the Edwards Aquifer, San Antonio area, Texas, 1934-79: Edwards Underground Water District Bulletin 39, 133 p.","productDescription":"133 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":583,"text":"Texas Water Science Center","active":true,"usgs":true}],"links":[{"id":327773,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57c6aeefe4b0f2f0cebe4604","contributors":{"authors":[{"text":"Reeves, R.D.","contributorId":95043,"corporation":false,"usgs":true,"family":"Reeves","given":"R.D.","email":"","affiliations":[],"preferred":false,"id":646884,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Maclay, R.W.","contributorId":72804,"corporation":false,"usgs":true,"family":"Maclay","given":"R.W.","affiliations":[],"preferred":false,"id":646885,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Grimm, K. C.","contributorId":173997,"corporation":false,"usgs":false,"family":"Grimm","given":"K.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":646886,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Davis, M.F.","contributorId":79400,"corporation":false,"usgs":true,"family":"Davis","given":"M.F.","email":"","affiliations":[],"preferred":false,"id":646887,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":1004073,"text":"1004073 - 1981 - An outbreak of duck virus enteritis (duck plague) in a captive flock of mixed waterfowl","interactions":[],"lastModifiedDate":"2018-02-27T14:33:23","indexId":"1004073","displayToPublicDate":"1981-01-01T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":948,"text":"Avian Diseases","active":true,"publicationSubtype":{"id":10}},"title":"An outbreak of duck virus enteritis (duck plague) in a captive flock of mixed waterfowl","docAbstract":"An outbreak of duck virus enteritis occurred in a flock of captive waterfowl composed of mallards (Anas platyrhynchos), black ducks (Anas rubripes), and Canada geese (Branta canadensis). Although all three species were housed together, morbidity and mortality were confined to the 227 black ducks and Canada geese, of which 180 died and the rest were left in a weakened condition. Lesions are given for 20 black ducks and 4 Canada geese dying from DVE. In addition, both horizontal and vertical transmission are discussed as possible sources of the virus that caused this outbreak.
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Roy D.","contributorId":54941,"corporation":false,"usgs":false,"family":"Montgomery","given":"Roy","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":315103,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stein, George Jr.","contributorId":34089,"corporation":false,"usgs":false,"family":"Stein","given":"George","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":315102,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Novilla, Meliton N.","contributorId":74903,"corporation":false,"usgs":false,"family":"Novilla","given":"Meliton","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":315099,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hurley, Sarah S.","contributorId":33269,"corporation":false,"usgs":true,"family":"Hurley","given":"Sarah","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":315101,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Fink, 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(MAGIC) extraction system offers the advantage that a large number of trace elements can be rapidly determined with a single sample preparation procedure. However, many of the elements extracted by the MAGIC system form volatile organometallic halide salts when the organic extract is heated in the graphite furnace. High concentrations of some elements such as Cu and Zn extracted by the system from anomalous geological samples produce serious interferences when certain other elements are determined by flameless atomic absorption. Stripping systems have been developed using solutions of HNO3, H2SO4, and CH3COOH individually or combined with H2O2 in order to circumvent these problems. With these systems most of the elements in the organic extract can be sequentially stripped into an aqueous phase. Organometallic volatilization and the most serious interelement interferences, therefore, can be eliminated by stripping with various combinations of reagents in a series of steps.
","language":"English","publisher":"ACS Publications","doi":"10.1021/ac00224a018","usgsCitation":"Clark, J.R., and Viets, J.G., 1981, Back-extraction of trace elements from organometallic-halide extracts for determination by flameless atomic absorption spectrometry: Analytical Chemistry, v. 53, no. 1, p. 65-70, https://doi.org/10.1021/ac00224a018.","productDescription":"6 p.","startPage":"65","endPage":"70","numberOfPages":"6","costCenters":[],"links":[{"id":222118,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"53","issue":"1","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"5059ef8ce4b0c8380cd4a2ff","contributors":{"authors":[{"text":"Clark, J. Robert","contributorId":90879,"corporation":false,"usgs":true,"family":"Clark","given":"J.","email":"","middleInitial":"Robert","affiliations":[],"preferred":false,"id":362777,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Viets, John G.","contributorId":84510,"corporation":false,"usgs":true,"family":"Viets","given":"John","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":362778,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70012119,"text":"70012119 - 1981 - Martian channels and valleys: Their characteristics, distribution, and age","interactions":[],"lastModifiedDate":"2024-02-20T12:58:48.860946","indexId":"70012119","displayToPublicDate":"1981-01-01T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1963,"text":"Icarus","active":true,"publicationSubtype":{"id":10}},"title":"Martian channels and valleys: Their characteristics, distribution, and age","docAbstract":"All Martian channels and valleys visible at a resolution of 125 to 300 meters between 65°N and 65°S were mapped at a scale of 1:5,000,000 and the maps then digitized. Correlations of valley presence with other surface features show that almost all valleys are in the old cratered terrain. preferentially in areas of low albedo, low violet/red ratios, and high elevation. The networks are open, the individual drainage basins are small relative to Earth, and large distances separate the basins, features which all suggest an immature drainage system. The simplest explanation of the correlations and the restriction of valley networks to old terrain is that the channels themselves are old, and that the climatic conditions necessary for their formation did not prevail for long after the decline in the cratering rate around 3.9 billion years ago. Two types of outflow channel are distinguished: unconfined, in which broad swaths of terrain are scoured, and confined, in which flow is restricted to discrete channels. The outflow channels have a wide range of ages and may form under present climatic conditions. Fretted channels are largely restrited to two latitude belts centered on 40°N and 45°S, where relatively rapid erosion along escarpments results from mass wasting. They probably form by enlargement of preexisting channels by escarpment retreat.