{"pageNumber":"965","pageRowStart":"24100","pageSize":"25","recordCount":46734,"records":[{"id":70027707,"text":"70027707 - 2005 - Landscape structure and plague occurrence in black-tailed prairie dogs on grasslands of the western USA","interactions":[],"lastModifiedDate":"2012-03-12T17:21:17","indexId":"70027707","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2602,"text":"Landscape Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Landscape structure and plague occurrence in black-tailed prairie dogs on grasslands of the western USA","docAbstract":"Landscape structure influences the abundance and distribution of many species, including pathogens that cause infectious diseases. Black-tailed prairie dogs in the western USA have declined precipitously over the past 100 years, most recently due to grassland conversion and their susceptibility to sylvatic plague. We assembled and analyzed two long-term data sets on plague occurrence in black-tailed prairie dogs to explore the hypotheses that plague occurrence is associated with colony characteristics and landscape context. Our two study areas (Boulder County, Colorado, and Phillips County, Montana) differed markedly in degree of urbanization and other landscape characteristics. In both study areas, we found associations between plague occurrence and landscape and colony characteristics such as the amount of roads, streams and lakes surrounding a prairie dog colony, the area covered by the colony and its neighbors, and the distance to the nearest plague-positive colony. Logistic regression models were similar between the two study areas, with the best models predicting positive effects of proximity to plague-positive colonies and negative effects of road, stream and lake cover on plague occurrence. Taken together, these results suggest that roads, streams and lakes may serve as barriers to plague in black-tailed prairie dog colonies by affecting movement of or habitat quality for plague hosts or for fleas that serve as vectors for the pathogen. The similarity in plague correlates between urban and rural study areas suggests that the correlates of plague are not altered by uniquely urban stressors. ?? Springer 2005.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Landscape Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10980-005-4617-5","issn":"09212973","usgsCitation":"Collinge, S., Johnson, W., Ray, C., Matchett, R., Grensten, J., Cully, J., Gage, K., Kosoy, M., Loye, J., and Martin, A., 2005, Landscape structure and plague occurrence in black-tailed prairie dogs on grasslands of the western USA: Landscape Ecology, v. 20, no. 8, p. 941-955, https://doi.org/10.1007/s10980-005-4617-5.","startPage":"941","endPage":"955","numberOfPages":"15","costCenters":[],"links":[{"id":238426,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211199,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10980-005-4617-5"}],"volume":"20","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a441ee4b0c8380cd66893","contributors":{"authors":[{"text":"Collinge, S.K.","contributorId":58832,"corporation":false,"usgs":true,"family":"Collinge","given":"S.K.","email":"","affiliations":[],"preferred":false,"id":414830,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Johnson, W.C.","contributorId":68003,"corporation":false,"usgs":true,"family":"Johnson","given":"W.C.","email":"","affiliations":[],"preferred":false,"id":414831,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ray, C.","contributorId":40758,"corporation":false,"usgs":true,"family":"Ray","given":"C.","email":"","affiliations":[],"preferred":false,"id":414828,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Matchett, R.","contributorId":92482,"corporation":false,"usgs":true,"family":"Matchett","given":"R.","email":"","affiliations":[],"preferred":false,"id":414833,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Grensten, J.","contributorId":29196,"corporation":false,"usgs":true,"family":"Grensten","given":"J.","email":"","affiliations":[],"preferred":false,"id":414827,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Cully, J.F. Jr.","contributorId":51041,"corporation":false,"usgs":true,"family":"Cully","given":"J.F.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":414829,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Gage, K.L.","contributorId":107653,"corporation":false,"usgs":true,"family":"Gage","given":"K.L.","email":"","affiliations":[],"preferred":false,"id":414834,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Kosoy, M.Y.","contributorId":78283,"corporation":false,"usgs":true,"family":"Kosoy","given":"M.Y.","email":"","affiliations":[],"preferred":false,"id":414832,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Loye, J.E.","contributorId":9056,"corporation":false,"usgs":true,"family":"Loye","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":414825,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Martin, A.P.","contributorId":12257,"corporation":false,"usgs":true,"family":"Martin","given":"A.P.","email":"","affiliations":[],"preferred":false,"id":414826,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
,{"id":70027770,"text":"70027770 - 2005 - Site characterization in densely fractured dolomite: Comparison of methods","interactions":[],"lastModifiedDate":"2012-03-12T17:20:49","indexId":"70027770","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"Site characterization in densely fractured dolomite: Comparison of methods","docAbstract":"One of the challenges in characterizing fractured-rock aquifers is determining whether the equivalent porous medium approximation is valid at the problem scale. Detailed hydrogeologic characterization completed at a small study site in a densely fractured dolomite has yielded an extensive data set that was used to evaluate the utility of the continuum and discrete-fracture approaches to aquifer characterization. There are two near-vertical sets of fractures at the site; near-horizontal bedding-plane partings constitute a third fracture set. Eighteen boreholes, including five coreholes, were drilled to a depth of ???10.6 m. Borehole geophysical logs revealed several laterally extensive horizontal fractures and dissolution zones. Flowmeter and short-interval packer testing identified which of these features were hydraulically important. A monitoring system, consisting of short-interval piezometers and multilevel samplers, was designed to monitor four horizontal fractures and two dissolution zones. The resulting network consisted of >70 sampling points and allowed detailed monitoring of head distributions in three dimensions. Comparison of distributions of hydraulic head - and hydraulic conductivity determined by these two approaches suggests that even in a densely fractured-carbonate aquifer, a characterization approach using traditional long-interval monitoring wells is inadequate to characterize ground water movement for the purposes of regulatory monitoring or site remediation. In addition, traditional multiwell pumping tests yield an average or bulk hydraulic conductivity that is not adequate for predicting rapid ground water travel times through the fracture network, and the pumping test response does not appear to be an adequate tool for assessing whether the porous medium approximation is valid. Copyright ?? 2005 National Ground Water Association.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ground Water","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1745-6584.2005.00091.x","issn":"0017467X","usgsCitation":"Muldoon, M., and Bradbury, K.R., 2005, Site characterization in densely fractured dolomite: Comparison of methods: Ground Water, v. 43, no. 6, p. 863-876, https://doi.org/10.1111/j.1745-6584.2005.00091.x.","startPage":"863","endPage":"876","numberOfPages":"14","costCenters":[],"links":[{"id":211098,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6584.2005.00091.x"},{"id":238281,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"6","noUsgsAuthors":false,"publicationDate":"2005-08-24","publicationStatus":"PW","scienceBaseUri":"505b90f0e4b08c986b3196ee","contributors":{"authors":[{"text":"Muldoon, M.","contributorId":17825,"corporation":false,"usgs":true,"family":"Muldoon","given":"M.","email":"","affiliations":[],"preferred":false,"id":415139,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bradbury, K. R.","contributorId":86070,"corporation":false,"usgs":true,"family":"Bradbury","given":"K.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":415140,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70027711,"text":"70027711 - 2005 - Determinants of woody cover in African savannas","interactions":[],"lastModifiedDate":"2012-03-12T17:21:17","indexId":"70027711","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2840,"text":"Nature","active":true,"publicationSubtype":{"id":10}},"title":"Determinants of woody cover in African savannas","docAbstract":"Savannas are globally important ecosystems of great significance to human economies. In these biomes, which are characterized by the co-dominance of trees and grasses, woody cover is a chief determinant of ecosystem properties 1-3. The availability of resources (water, nutrients) and disturbance regimes (fire, herbivory) are thought to be important in regulating woody cover1,2,4,5, but perceptions differ on which of these are the primary drivers of savanna structure. Here we show, using data from 854 sites across Africa, that maximum woody cover in savannas receiving a mean annual precipitation (MAP) of less than ???650 mm is constrained by, and increases linearly with, MAP. These arid and semi-arid savannas may be considered 'stable' systems in which water constrains woody cover and permits grasses to coexist, while fire, herbivory and soil properties interact to reduce woody cover below the MAP-controlled upper bound. Above a MAP of ???650 mm, savannas are 'unstable' systems in which MAP is sufficient for woody canopy closure, and disturbances (fire, herbivory) are required for the coexistence of trees and grass. These results provide insights into the nature of African savannas and suggest that future changes in precipitation 6 may considerably affect their distribution and dynamics. ?? 2005 Nature Publishing Group.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Nature","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1038/nature04070","issn":"00280836","usgsCitation":"Sankaran, M., Hanan, N., Scholes, R.J., Ratnam, J., Augustine, D., Cade, B., Gignoux, J., Higgins, S., Le, R.X., Ludwig, F., Ardo, J., Banyikwa, F., Bronn, A., Bucini, G., Caylor, K., Coughenour, M., Diouf, A., Ekaya, W., Feral, C., February, E., Frost, P., Hiernaux, P., Hrabar, H., Metzger, K., Prins, H., Ringrose, S., Sea, W., Tews, J., Worden, J., and Zambatis, N., 2005, Determinants of woody cover in African savannas: Nature, v. 438, no. 7069, p. 846-849, https://doi.org/10.1038/nature04070.","startPage":"846","endPage":"849","numberOfPages":"4","costCenters":[],"links":[{"id":499981,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://research.wur.nl/en/publications/determinants-of-woody-cover-in-african-savannas","text":"External Repository"},{"id":211247,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1038/nature04070"},{"id":238503,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"438","issue":"7069","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ff84e4b0c8380cd4f229","contributors":{"authors":[{"text":"Sankaran, M.","contributorId":96475,"corporation":false,"usgs":true,"family":"Sankaran","given":"M.","affiliations":[],"preferred":false,"id":414871,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hanan, 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W.","contributorId":24562,"corporation":false,"usgs":true,"family":"Ekaya","given":"W.","email":"","affiliations":[],"preferred":false,"id":414850,"contributorType":{"id":1,"text":"Authors"},"rank":18},{"text":"Feral, C.J.","contributorId":15400,"corporation":false,"usgs":true,"family":"Feral","given":"C.J.","email":"","affiliations":[],"preferred":false,"id":414844,"contributorType":{"id":1,"text":"Authors"},"rank":19},{"text":"February, E.C.","contributorId":22574,"corporation":false,"usgs":true,"family":"February","given":"E.C.","email":"","affiliations":[],"preferred":false,"id":414849,"contributorType":{"id":1,"text":"Authors"},"rank":20},{"text":"Frost, P.G.H.","contributorId":40415,"corporation":false,"usgs":true,"family":"Frost","given":"P.G.H.","email":"","affiliations":[],"preferred":false,"id":414854,"contributorType":{"id":1,"text":"Authors"},"rank":21},{"text":"Hiernaux, 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S.","contributorId":31196,"corporation":false,"usgs":true,"family":"Ringrose","given":"S.","email":"","affiliations":[],"preferred":false,"id":414851,"contributorType":{"id":1,"text":"Authors"},"rank":26},{"text":"Sea, W.","contributorId":92486,"corporation":false,"usgs":true,"family":"Sea","given":"W.","email":"","affiliations":[],"preferred":false,"id":414870,"contributorType":{"id":1,"text":"Authors"},"rank":27},{"text":"Tews, J.","contributorId":72196,"corporation":false,"usgs":true,"family":"Tews","given":"J.","email":"","affiliations":[],"preferred":false,"id":414864,"contributorType":{"id":1,"text":"Authors"},"rank":28},{"text":"Worden, J.","contributorId":46303,"corporation":false,"usgs":true,"family":"Worden","given":"J.","email":"","affiliations":[],"preferred":false,"id":414858,"contributorType":{"id":1,"text":"Authors"},"rank":29},{"text":"Zambatis, N.","contributorId":76128,"corporation":false,"usgs":true,"family":"Zambatis","given":"N.","email":"","affiliations":[],"preferred":false,"id":414866,"contributorType":{"id":1,"text":"Authors"},"rank":30}]}}
,{"id":70027712,"text":"70027712 - 2005 - Distribution and abundance of nonnative fishes in streams of the western United States","interactions":[],"lastModifiedDate":"2012-03-12T17:20:50","indexId":"70027712","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"Distribution and abundance of nonnative fishes in streams of the western United States","docAbstract":"This report presents data from one of the largest standardized stream surveys conducted in he western United States, which shows that one of every four individual fish in streams of 12 western states are nonnative. The states surveyed included Arizona, California, Colorado, Idaho, Montana, Nevada, North Dakota, Oregon, South Dakota, Utah, Washington, and Wyoming. The most widely distributed and abundant nonnative fishes in the western USA were brook trout Salvelinus fontinalis, brown trout Salmo trutta, rainbow trout Oncorhynchus mykiss, common carp Cyprinus carpio, smallmouth bass Micropterus dolomieu, largemouth bass M. salmoides, green sunfish Lepomis cyanellus, fathead minnow Pimephales promelas, yellow perch Percaflavescens, yellow bullhead Ameiurus natalis, cutthroat trout O. clarkii, western mosquitofish Gambusia affinis, golden shiner Notemigonus crysoleucas, channel catfish Ictalurus punctatus, and red shiner Cyprinella lutrensis. The greatest abundance and distribution of nonnative fishes was in interior states, and the most common nonnatives were introduced for angling. Nonnative fishes were widespread in pristine to highly disturbed streams influenced by all types of land use practices. We present ranges in water temperature, flow, stream order, riparian cover, human disturbance, and other environmental conditions where the 10 most common introduced species were found. Of the total western U.S. stream length bearing fish, 50.1% contained nonnative fishes while 17.9% contained physical environment that was ranked highly or moderately disturbed by humans. Introduced fishes can adversely affect stream communities, and they are much more widespread in western U.S. streams than habitat destruction. The widespread distribution and high relative abundance of nonnative fishes and their documented negative effects suggest their management and control should elicit at least as much attention as habitat preservation in the protection of native western U.S. stream biota. ?? Copyright by the American Fisheries Society 2005.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"North American Journal of Fisheries Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/M05-037.1","issn":"02755947","usgsCitation":"Schade, C., and Bonar, S.A., 2005, Distribution and abundance of nonnative fishes in streams of the western United States: North American Journal of Fisheries Management, v. 25, no. 4, p. 1386-1394, https://doi.org/10.1577/M05-037.1.","startPage":"1386","endPage":"1394","numberOfPages":"9","costCenters":[],"links":[{"id":477880,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1577/m05-037.1","text":"Publisher Index Page"},{"id":237957,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":210887,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/M05-037.1"}],"volume":"25","issue":"4","noUsgsAuthors":false,"publicationDate":"2005-11-01","publicationStatus":"PW","scienceBaseUri":"505a026ee4b0c8380cd50049","contributors":{"authors":[{"text":"Schade, C.B.","contributorId":82119,"corporation":false,"usgs":true,"family":"Schade","given":"C.B.","email":"","affiliations":[],"preferred":false,"id":414873,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bonar, Scott A.","contributorId":79617,"corporation":false,"usgs":true,"family":"Bonar","given":"Scott","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":414872,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":73393,"text":"ofr20051378 - 2005 - Stakeholder survey results for Lake Umbagog National Wildlife Refuge: Completion report","interactions":[],"lastModifiedDate":"2016-05-04T15:46:16","indexId":"ofr20051378","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2005-1378","title":"Stakeholder survey results for Lake Umbagog National Wildlife Refuge: Completion report","docAbstract":"<p>Lake Umbagog is a newly established Refuge (in 1993) with an increasing visitation. Current visitation numbers are around 55,000 visits/year. Though limited visitor services are currently offered, additional services will be proposed in the CCP. The purpose of this survey is to assess interested publics' and stakeholders' satisfaction with existing visitor conditions and experiences on the Refuge and the preferences for proposed changes to the Refuge affecting visitation. An additional purpose is to gauge customers' understanding and knowledge regarding the Refuge so that future communications with stakeholders regarding proposed changes can be most effective. Appendix A of this report includes the survey instrument. Appendix B includes the summary data for all of the questions in the survey, in the order that they appear in the survey. For the most part, that information is not repeated in the body of the report, which focuses on the meaning of more in-depth analyses of the survey data.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20051378","usgsCitation":"Sexton, N.R., Stewart, S., Koontz, L., and Wundrock, K.D., 2005, Stakeholder survey results for Lake Umbagog National Wildlife Refuge: Completion report: U.S. Geological Survey Open-File Report 2005-1378, Report: 115 p.; Executive Summary: 7 p., https://doi.org/10.3133/ofr20051378.","productDescription":"Report: 115 p.; Executive Summary: 7 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":193323,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20051378.PNG"},{"id":320258,"rank":3,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2005/1378/summary.pdf","text":"Executive Summary","linkFileType":{"id":1,"text":"pdf"}},{"id":320257,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2005/1378/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","otherGeospatial":"Lake Umbagog National Wildlife Refuge","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e1e4b07f02db5e48b3","contributors":{"authors":[{"text":"Sexton, Natalie R.","contributorId":82750,"corporation":false,"usgs":true,"family":"Sexton","given":"Natalie","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":286398,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stewart, Susan C.","contributorId":48257,"corporation":false,"usgs":true,"family":"Stewart","given":"Susan C.","affiliations":[],"preferred":false,"id":286397,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Koontz, Lynne koontzl@usgs.gov","contributorId":2174,"corporation":false,"usgs":false,"family":"Koontz","given":"Lynne","email":"koontzl@usgs.gov","affiliations":[{"id":7016,"text":"Environmental Quality Division, National Park Service, Fort Collins, Colorado","active":true,"usgs":false}],"preferred":false,"id":286395,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wundrock, Katherine D.","contributorId":29083,"corporation":false,"usgs":true,"family":"Wundrock","given":"Katherine","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":286396,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70027713,"text":"70027713 - 2005 - Sexually dimorphic patterns of space use throughout ontogeny in the spotted hyena (Crocuta crocuta)","interactions":[],"lastModifiedDate":"2020-11-16T15:38:28.119923","indexId":"70027713","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2515,"text":"Journal of Zoology","active":true,"publicationSubtype":{"id":10}},"title":"Sexually dimorphic patterns of space use throughout ontogeny in the spotted hyena (Crocuta crocuta)","docAbstract":"<p>Observational and telemetry data were used in a geographic information system database to document the ontogenetic development of sexually dimorphic patterns of space use among free-living spotted hyenas Crocuta crocuta in Kenya. No measures of space use were sexually dimorphic among den-dwelling cubs, nor were sex differences apparent among hyenas that had ceased using dens for shelter until these animals were c. 30 months of age. Significant sex differences emerged late in the third year of life, and persisted throughout the remainder of the life span; males were found farther from the geographic centre of the natal territory than were females, and the mean size of individual 95% utility distributions was larger for males than females. Most dispersal events by radio-collared males were preceded by a series of exploratory excursions outside the natal territory. All collared males dispersed, but no collared females did so. Most dispersing males moved only one or two home ranges away at dispersal, roughly 8-10 km distant from the natal territory, before settling in a new social group.</p>","language":"English","publisher":"Wiley","doi":"10.1017/S0952836905007478","issn":"09528369","usgsCitation":"Boydston, E., Kapheim, K., Van Horn, R.C., Smale, L., and Holekamp, K., 2005, Sexually dimorphic patterns of space use throughout ontogeny in the spotted hyena (Crocuta crocuta): Journal of Zoology, v. 267, no. 3, p. 271-281, https://doi.org/10.1017/S0952836905007478.","productDescription":"11 p.","startPage":"271","endPage":"281","numberOfPages":"11","costCenters":[],"links":[{"id":237958,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"267","issue":"3","noUsgsAuthors":false,"publicationDate":"2006-02-28","publicationStatus":"PW","scienceBaseUri":"505b8dc2e4b08c986b318553","contributors":{"authors":[{"text":"Boydston, E. E.","contributorId":106045,"corporation":false,"usgs":false,"family":"Boydston","given":"E. E.","affiliations":[],"preferred":false,"id":414878,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kapheim, K.M.","contributorId":64197,"corporation":false,"usgs":true,"family":"Kapheim","given":"K.M.","affiliations":[],"preferred":false,"id":414876,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Van Horn, R. C.","contributorId":53745,"corporation":false,"usgs":true,"family":"Van Horn","given":"R.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":414875,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Smale, L.","contributorId":72324,"corporation":false,"usgs":true,"family":"Smale","given":"L.","email":"","affiliations":[],"preferred":false,"id":414877,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Holekamp, K.E.","contributorId":34077,"corporation":false,"usgs":true,"family":"Holekamp","given":"K.E.","affiliations":[],"preferred":false,"id":414874,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70027769,"text":"70027769 - 2005 - Assessing water source and channel type as factors affecting benthic macroinvertebrate and periphyton assemblages in the highly urbanized Santa Ana River Basin, California","interactions":[],"lastModifiedDate":"2018-06-08T12:59:53","indexId":"70027769","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":718,"text":"American Fisheries Society Symposium","active":true,"publicationSubtype":{"id":10}},"title":"Assessing water source and channel type as factors affecting benthic macroinvertebrate and periphyton assemblages in the highly urbanized Santa Ana River Basin, California","docAbstract":"The Santa Ana River basin is the largest stream system in Southern California and includes a densely populated coastal area. Extensive urbanization has altered the geomorphology and hydrology of the streams, adversely affecting aquatic communities. We studied macroinvertebrate and periphyton assemblages in relation to two categorical features of the highly engineered hydrologic system-water source and channel type. Four water sources were identified-natural, urban-impacted groundwater, urban runoff, and treated wastewater. Three channel types were identified-natural, channelized with natural bottom, and concrete-lined. Nineteen sites, covering the range of these two categorical features, were sampled in summer 2000. To minimize the effects of different substrate types among sites, artificial substrates were used for assessing macroinvertebrate and periphyton assemblages. Physical and chemical variables and metrics calculated from macroinvertebrate and periphyton assemblage data were compared among water sources and channel types using analysis of variance and multiple comparison tests. Macroinvertebrate metrics exhibiting significant (P < 0.05) differences between water sources included taxa and Ephemeroptera-Plecoptera-Trichoptera richness, relative richness and abundance of nonchironomid dipterans, orthoclads, oligochaetes, and some functional-feeding groups such as parasites and shredders. Periphyton metrics showing significant differences between water sources included blue-green algae biovolume and relative abundance of nitrogen heterotrophic, eutrophic, motile, and pollution-sensitive diatoms. The relative abundance of trichopterans, tanytarsini chironomids, noninsects, and filter feeders, as well as the relative richness and abundance of diatoms, were significantly different between channel types. Most physical variables were related to channel type, whereas chemical variables and some physical variables (e.g., discharge, velocity, and channel width) were related to water source. These associations were reflected in correlations between metrics, chemical variables, and physical variables. Significant improvements in the aquatic ecosystem of the Santa Ana River basin are possible with management actions such as conversion of concrete-lined channels to channelized streams with natural bottoms that can still maintain flood control to protect life and property.","language":"English","publisher":"American Fisheries Society","issn":"08922284","usgsCitation":"Burton, C.A., Brown, L.R., and Belitz, K., 2005, Assessing water source and channel type as factors affecting benthic macroinvertebrate and periphyton assemblages in the highly urbanized Santa Ana River Basin, California: American Fisheries Society Symposium, v. 2005, no. 47, p. 239-262.","productDescription":"24 p.","startPage":"239","endPage":"262","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":238245,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2005","issue":"47","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059edf5e4b0c8380cd49b36","contributors":{"authors":[{"text":"Burton, Carmen A. 0000-0002-6381-8833 caburton@usgs.gov","orcid":"https://orcid.org/0000-0002-6381-8833","contributorId":444,"corporation":false,"usgs":true,"family":"Burton","given":"Carmen","email":"caburton@usgs.gov","middleInitial":"A.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":415138,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brown, Larry R. 0000-0001-6702-4531 lrbrown@usgs.gov","orcid":"https://orcid.org/0000-0001-6702-4531","contributorId":1717,"corporation":false,"usgs":true,"family":"Brown","given":"Larry","email":"lrbrown@usgs.gov","middleInitial":"R.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":415137,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Belitz, Kenneth 0000-0003-4481-2345 kbelitz@usgs.gov","orcid":"https://orcid.org/0000-0003-4481-2345","contributorId":442,"corporation":false,"usgs":true,"family":"Belitz","given":"Kenneth","email":"kbelitz@usgs.gov","affiliations":[{"id":376,"text":"Massachusetts Water Science Center","active":true,"usgs":true},{"id":503,"text":"Office of Water Quality","active":true,"usgs":true},{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true},{"id":466,"text":"New England Water Science Center","active":true,"usgs":true},{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true}],"preferred":true,"id":415136,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70027715,"text":"70027715 - 2005 - Modeling and model validation of wind-driven circulation in Upper Klamath Lake, Oregon","interactions":[],"lastModifiedDate":"2012-03-12T17:20:50","indexId":"70027715","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Modeling and model validation of wind-driven circulation in Upper Klamath Lake, Oregon","docAbstract":"The hydrodynamics in the Upper Klamath Lake (UKL) plays a significant role in the water quality conditions of the lake. In order to provide a quantitative evaluation of the impacts of hydrodynamics on water quality in UKL, a detailed hydrodynamic model was implemented using an unstructured grid 3-D hydrodynamic model known as the UnTRIM model. The circulation in UKL is driven primarily by wind. Wind speed and direction time-series records were used as input, the numerical model reproduced the wind \"set-up\" and \"set-down\" at down wind and upwind ends of the lake, respectively. Of the two acoustic Doppler current profiler (ADCP) records, the UnTRIM model reproduced the measured velocity at the deep station. At the shallow station, the model results showed diurnal patterns that correlated well with wind variations, but the measured velocity showed water velocity sustained at 3 to 5 cm/sec or above. Discrepancies between the model results and observations at the shallow ADCP station is discussed on the basis of correct physics. If the field measurements are inconsistent with the known physics, there exists the possibility that the field data are suspect or the field data are revealing some physical processes that are not yet understood. Copyright ASCE 2005.","largerWorkTitle":"World Water Congress 2005: Impacts of Global Climate Change - Proceedings of the 2005 World Water and Environmental Resources Congress","conferenceTitle":"2005 World Water and Environmental Resources Congress","conferenceDate":"15 May 2005 through 19 May 2005","conferenceLocation":"Anchorage, AK","language":"English","doi":"10.1061/40792(173)426","isbn":"0784407924; 9780784407929","usgsCitation":"Cheng, R.T., Gartner, J.W., and Wood, T., 2005, Modeling and model validation of wind-driven circulation in Upper Klamath Lake, Oregon, <i>in</i> World Water Congress 2005: Impacts of Global Climate Change - Proceedings of the 2005 World Water and Environmental Resources Congress, Anchorage, AK, 15 May 2005 through 19 May 2005, https://doi.org/10.1061/40792(173)426.","startPage":"426","costCenters":[],"links":[{"id":210913,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1061/40792(173)426"},{"id":237993,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationDate":"2012-04-26","publicationStatus":"PW","scienceBaseUri":"505a5bd8e4b0c8380cd6f848","contributors":{"authors":[{"text":"Cheng, R. T.","contributorId":23138,"corporation":false,"usgs":false,"family":"Cheng","given":"R.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":414882,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gartner, J. W.","contributorId":81903,"corporation":false,"usgs":false,"family":"Gartner","given":"J.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":414884,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wood, T.","contributorId":31194,"corporation":false,"usgs":true,"family":"Wood","given":"T.","affiliations":[],"preferred":false,"id":414883,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":76686,"text":"ofr20051426 - 2005 - 2004 annual progress report: Stratton Sagebrush Hydrology Study Area: Establishment of a long-term research site in a high-elevation sagebrush steppe","interactions":[],"lastModifiedDate":"2016-04-25T15:17:23","indexId":"ofr20051426","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2005-1426","title":"2004 annual progress report: Stratton Sagebrush Hydrology Study Area: Establishment of a long-term research site in a high-elevation sagebrush steppe","docAbstract":"<p>In 2004 the U.S. Geological Survey, Fort Collins Science Center (FORT) and the Bureau of Land Management (BLM), Rawlins Field Office (RFO), began a cooperative effort to reestablish the Stratton Sagebrush Hydrology Study Area (Stratton) as a research location, with the goal of making it a site for long-term research on sagebrush (Artemisia spp.) ecology. No other long-term research sites in high-elevation sagebrush habitat currently exist, and the Stratton area, with its 30+ year history of research and baseline data, was a logical location to restart investigations aimed at answering pertinent and timely questions about sagebrush ecology and sagebrush-obligate species. During the first year of the study, USGS scientists conducted an in-depth literature search to locate publications from research conducted at Stratton. We contacted previous researchers to acquire literature and unpublished reports of work conducted at Stratton. Collated papers and published manuscripts were presented in an annotated bibliography (Burgess and Schoenecker, 2004).</p>\n<p>A second goal was to establish Stratton as a host location for researchers interested in sagebrush ecology investigations. We contacted staff and professors from Colorado State University and Wyoming and Montana universities to notify them of the opportunities at Stratton. Several institutions showed interest in the area and the potential of such a research site. A major advantage of the Stratton site is the ability of BLM to coordinate activities on the land, manipulate grazing in cooperation with permit holders, and direct other activities to accommodate appropriate long-term experimental designs.</p>\n<p>A third goal was to evaluate grazing management after a prescribed burn. The BLM widely uses prescribed burns as a tool for land management and grazing management. In general, BLM policy restricts grazing after a wildfire for two or more years. Some BLM offices allow no grazing after a wildfire or prescribed treatment for at least two years. Conversely, the RFO often allows grazing following a prescribed burn directly after the peak growing season the following year. This procedure is used for two years post-burn, after which grazing management is directed by local&nbsp;conditions and goals. We are investigating this practice to evaluate the effects on plant production and nutrient cycling. The RFO specifically wants to know if there are negative effects from grazing one season after a prescribed burn.&nbsp;</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20051426","usgsCitation":"Schoenecker, K., Lange, B., and Calton, M., 2005, 2004 annual progress report: Stratton Sagebrush Hydrology Study Area: Establishment of a long-term research site in a high-elevation sagebrush steppe: U.S. Geological Survey Open-File Report 2005-1426, iii, 10 p., https://doi.org/10.3133/ofr20051426.","productDescription":"iii, 10 p.","numberOfPages":"13","onlineOnly":"Y","additionalOnlineFiles":"N","temporalStart":"2004-01-01","temporalEnd":"2004-12-31","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":192580,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20051426.PNG"},{"id":320239,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2005/1426/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Wyoming","city":"Stratton","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd491ee4b0b290850eee81","contributors":{"authors":[{"text":"Schoenecker, Kate","contributorId":37834,"corporation":false,"usgs":true,"family":"Schoenecker","given":"Kate","affiliations":[],"preferred":false,"id":287616,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lange, Bob","contributorId":69661,"corporation":false,"usgs":true,"family":"Lange","given":"Bob","email":"","affiliations":[],"preferred":false,"id":287618,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Calton, Mike","contributorId":39471,"corporation":false,"usgs":true,"family":"Calton","given":"Mike","email":"","affiliations":[],"preferred":false,"id":287617,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70027732,"text":"70027732 - 2005 - Use of XML and Java for collaborative petroleum reservoir modeling on the Internet","interactions":[],"lastModifiedDate":"2012-03-12T17:20:49","indexId":"70027732","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1315,"text":"Computers & Geosciences","printIssn":"0098-3004","active":true,"publicationSubtype":{"id":10}},"title":"Use of XML and Java for collaborative petroleum reservoir modeling on the Internet","docAbstract":"The GEMINI (Geo-Engineering Modeling through INternet Informatics) is a public-domain, web-based freeware that is made up of an integrated suite of 14 Java-based software tools to accomplish on-line, real-time geologic and engineering reservoir modeling. GEMINI facilitates distant collaborations for small company and academic clients, negotiating analyses of both single and multiple wells. The system operates on a single server and an enterprise database. External data sets must be uploaded into this database. Feedback from GEMINI users provided the impetus to develop Stand Alone Web Start Applications of GEMINI modules that reside in and operate from the user's PC. In this version, the GEMINI modules run as applets, which may reside in local user PCs, on the server, or Java Web Start. In this enhanced version, XML-based data handling procedures are used to access data from remote and local databases and save results for later access and analyses. The XML data handling process also integrates different stand-alone GEMINI modules enabling the user(s) to access multiple databases. It provides flexibility to the user to customize analytical approach, database location, and level of collaboration. An example integrated field-study using GEMINI modules and Stand Alone Web Start Applications is provided to demonstrate the versatile applicability of this freeware for cost-effective reservoir modeling. ?? 2005 Elsevier Ltd. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Computers and Geosciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.cageo.2004.12.007","issn":"00983004","usgsCitation":"Victorine, J., Watney, W., and Bhattacharya, S., 2005, Use of XML and Java for collaborative petroleum reservoir modeling on the Internet: Computers & Geosciences, v. 31, no. 9, p. 1151-1164, https://doi.org/10.1016/j.cageo.2004.12.007.","startPage":"1151","endPage":"1164","numberOfPages":"14","costCenters":[],"links":[{"id":211050,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.cageo.2004.12.007"},{"id":238208,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"31","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbe8de4b08c986b329655","contributors":{"authors":[{"text":"Victorine, J.","contributorId":59239,"corporation":false,"usgs":true,"family":"Victorine","given":"J.","email":"","affiliations":[],"preferred":false,"id":414983,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Watney, W.L.","contributorId":43087,"corporation":false,"usgs":true,"family":"Watney","given":"W.L.","email":"","affiliations":[],"preferred":false,"id":414982,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bhattacharya, S.","contributorId":97226,"corporation":false,"usgs":true,"family":"Bhattacharya","given":"S.","email":"","affiliations":[],"preferred":false,"id":414984,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":74333,"text":"ofr20051016 - 2005 - Gulf of Mexico Integrated Science - Tampa Bay Study - Historical and Prehistorical Record of Tampa Bay Environments","interactions":[],"lastModifiedDate":"2012-02-10T00:11:36","indexId":"ofr20051016","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2005-1016","title":"Gulf of Mexico Integrated Science - Tampa Bay Study - Historical and Prehistorical Record of Tampa Bay Environments","docAbstract":"To study how Tampa Bay, Florida, has changed over time, the prehistorical conditions and natural variations in the bay environment are being evaluated. These variations can be tracked by examining the sediments that have accumulated in and around the bay. The prehistorical record, which pre-dates settlers' arrival in the Tampa Bay area around 1850, provides a baseline with which to compare and evaluate the magnitude and effects of sea-level, climate, biological, geochemical, and man-made changes. These data also are valuable for planning and conducting projects aimed at restoring wetlands and other estuarine habitats to their original state. In addition, the data provide a basis for judging efforts to improve the health of the bay.","language":"ENGLISH","publisher":"U.S. Geological Survey","doi":"10.3133/ofr20051016","usgsCitation":"Edgar, T., 2005, Gulf of Mexico Integrated Science - Tampa Bay Study - Historical and Prehistorical Record of Tampa Bay Environments: U.S. Geological Survey Open-File Report 2005-1016, 2 p., https://doi.org/10.3133/ofr20051016.","productDescription":"2 p.","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":13261,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://dl.cr.usgs.gov/net_prod_download/public/gom_net_pub_products/DOC/OFR_2005-1016_Edgar.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":193294,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -82.83333333333333,27.5 ], [ -82.83333333333333,28 ], [ -82.33333333333333,28 ], [ -82.33333333333333,27.5 ], [ -82.83333333333333,27.5 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a81e4b07f02db64a226","contributors":{"authors":[{"text":"Edgar, Terry","contributorId":30701,"corporation":false,"usgs":true,"family":"Edgar","given":"Terry","email":"","affiliations":[],"preferred":false,"id":286587,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70027346,"text":"70027346 - 2005 - ASTER DEM performance","interactions":[],"lastModifiedDate":"2017-04-10T13:00:20","indexId":"70027346","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1944,"text":"IEEE Transactions on Geoscience and Remote Sensing","active":true,"publicationSubtype":{"id":10}},"title":"ASTER DEM performance","docAbstract":"<p><span>The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument onboard the National Aeronautics and Space Administration's Terra spacecraft has an along-track stereoscopic capability using its a near-infrared spectral band to acquire the stereo data. ASTER has two telescopes, one for nadir-viewing and another for backward-viewing, with a base-to-height ratio of 0.6. The spatial resolution is 15 m in the horizontal plane. Parameters such as the line-of-sight vectors and the pointing axis were adjusted during the initial operation period to generate Level-1 data products with a high-quality stereo system performance. The evaluation of the digital elevation model (DEM) data was carried out both by Japanese and U.S. science teams separately using different DEM generation software and reference databases. The vertical accuracy of the DEM data generated from the Level-1A data is 20 m with 95% confidence without ground control point (GCP) correction for individual scenes. Geolocation accuracy that is important for the DEM datasets is better than 50 m. This appears to be limited by the spacecraft position accuracy. In addition, a slight increase in accuracy is observed by using GCPs to generate the stereo data.</span></p>","language":"English","publisher":"IEEE","doi":"10.1109/TGRS.2005.847924","issn":"01962892","usgsCitation":"Fujisada, H., Bailey, G., Kelly, G.G., Hara, S., and Abrams, M.J., 2005, ASTER DEM performance: IEEE Transactions on Geoscience and Remote Sensing, v. 43, no. 12, p. 2707-2713, https://doi.org/10.1109/TGRS.2005.847924.","productDescription":"7 p.","startPage":"2707","endPage":"2713","numberOfPages":"7","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":235108,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":208970,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1109/TGRS.2005.847924"}],"volume":"43","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e638e4b0c8380cd4726b","contributors":{"authors":[{"text":"Fujisada, H.","contributorId":37906,"corporation":false,"usgs":true,"family":"Fujisada","given":"H.","email":"","affiliations":[],"preferred":false,"id":413267,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bailey, G. B.","contributorId":105041,"corporation":false,"usgs":true,"family":"Bailey","given":"G. B.","affiliations":[],"preferred":false,"id":413270,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kelly, Glen G.","contributorId":90916,"corporation":false,"usgs":true,"family":"Kelly","given":"Glen","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":413269,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hara, S.","contributorId":50699,"corporation":false,"usgs":true,"family":"Hara","given":"S.","email":"","affiliations":[],"preferred":false,"id":413268,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Abrams, M. J.","contributorId":29859,"corporation":false,"usgs":true,"family":"Abrams","given":"M.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":413266,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70027328,"text":"70027328 - 2005 - Predicting mining activity with parallel genetic algorithms","interactions":[],"lastModifiedDate":"2012-03-12T17:20:28","indexId":"70027328","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Predicting mining activity with parallel genetic algorithms","docAbstract":"We explore several different techniques in our quest to improve the overall model performance of a genetic algorithm calibrated probabilistic cellular automata. We use the Kappa statistic to measure correlation between ground truth data and data predicted by the model. Within the genetic algorithm, we introduce a new evaluation function sensitive to spatial correctness and we explore the idea of evolving different rule parameters for different subregions of the land. We reduce the time required to run a simulation from 6 hours to 10 minutes by parallelizing the code and employing a 10-node cluster. Our empirical results suggest that using the spatially sensitive evaluation function does indeed improve the performance of the model and our preliminary results also show that evolving different rule parameters for different regions tends to improve overall model performance. Copyright 2005 ACM.","largerWorkTitle":"GECCO 2005 - Genetic and Evolutionary Computation Conference","conferenceTitle":"GECCO 2005 - Genetic and Evolutionary Computation Conference","conferenceDate":"25 June 2005 through 29 June 2005","conferenceLocation":"Washington, D.C.","language":"English","doi":"10.1145/1068009.1068363","isbn":"1595930108","usgsCitation":"Talaie, S., Leigh, R., Louis, S., and Raines, G.L., 2005, Predicting mining activity with parallel genetic algorithms, <i>in</i> GECCO 2005 - Genetic and Evolutionary Computation Conference, Washington, D.C., 25 June 2005 through 29 June 2005, p. 2149-2155, https://doi.org/10.1145/1068009.1068363.","startPage":"2149","endPage":"2155","numberOfPages":"7","costCenters":[],"links":[{"id":477874,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.324.2553","text":"External Repository"},{"id":209182,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1145/1068009.1068363"},{"id":235423,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationDate":"2005-06-25","publicationStatus":"PW","scienceBaseUri":"505a81bde4b0c8380cd7b6de","contributors":{"editors":[{"text":"Beyer, H.G.","contributorId":112092,"corporation":false,"usgs":true,"family":"Beyer","given":"H.G.","email":"","affiliations":[],"preferred":false,"id":508881,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"O’Reilly, U.M.","contributorId":113368,"corporation":false,"usgs":true,"family":"O’Reilly","given":"U.M.","email":"","affiliations":[],"preferred":false,"id":508885,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Banzhaf, Arnold D.","contributorId":113112,"corporation":false,"usgs":true,"family":"Banzhaf","given":"Arnold","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":508884,"contributorType":{"id":2,"text":"Editors"},"rank":3},{"text":"Blum, W.","contributorId":112475,"corporation":false,"usgs":true,"family":"Blum","given":"W.","email":"","affiliations":[],"preferred":false,"id":508882,"contributorType":{"id":2,"text":"Editors"},"rank":4},{"text":"Bonabeau, C.","contributorId":113502,"corporation":false,"usgs":true,"family":"Bonabeau","given":"C.","email":"","affiliations":[],"preferred":false,"id":508886,"contributorType":{"id":2,"text":"Editors"},"rank":5},{"text":"Cantu-Paz, E.W.","contributorId":113017,"corporation":false,"usgs":true,"family":"Cantu-Paz","given":"E.W.","email":"","affiliations":[],"preferred":false,"id":508883,"contributorType":{"id":2,"text":"Editors"},"rank":6},{"text":"E.Dasgupta","contributorId":128337,"corporation":true,"usgs":false,"organization":"E.Dasgupta","id":536611,"contributorType":{"id":2,"text":"Editors"},"rank":7},{"text":"and others","contributorId":128318,"corporation":true,"usgs":false,"organization":"and others","id":536610,"contributorType":{"id":2,"text":"Editors"},"rank":8}],"authors":[{"text":"Talaie, S.","contributorId":37517,"corporation":false,"usgs":true,"family":"Talaie","given":"S.","email":"","affiliations":[],"preferred":false,"id":413195,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Leigh, R.","contributorId":22949,"corporation":false,"usgs":true,"family":"Leigh","given":"R.","email":"","affiliations":[],"preferred":false,"id":413194,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Louis, S.J.","contributorId":43534,"corporation":false,"usgs":true,"family":"Louis","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":413196,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Raines, G. L.","contributorId":90720,"corporation":false,"usgs":true,"family":"Raines","given":"G.","middleInitial":"L.","affiliations":[],"preferred":false,"id":413197,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70027846,"text":"70027846 - 2005 - Transboundary impacts on regional ground water modeling in Texas","interactions":[],"lastModifiedDate":"2012-03-12T17:21:18","indexId":"70027846","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Transboundary impacts on regional ground water modeling in Texas","docAbstract":"Recent legislation required regional grassroots water resources planning across the entire state of Texas. The Texas Water Development Board (TWDB), the state's primary water resource planning agency, divided the state into 16 planning regions. Each planning group developed plans to manage both ground water and surface water sources and to meet future demands of various combinations of domestic, agricultural, municipal, and industrial water consumers. This presentation describes the challenges in developing a ground water model for the Llano Estacado Regional Water Planning Group (LERWPG), whose region includes 21 counties in the Southern High Plains of Texas. While surface water is supplied to several cities in this region, the vast majority of the regional water use comes from the High Plains aquifer system, often locally referred to as the Ogallala Aquifer. Over 95% of the ground water demand is for irrigated agriculture. The LERWPG had to predict the impact of future TWDB-projected water demands, as provided by the TWDB, on the aquifer for the period 2000 to 2050. If detrimental impacts were noted, alternative management strategies must be proposed. While much effort was spent on evaluating the current status of the ground water reserves, an appropriate numerical model of the aquifer system was necessary to demonstrate future impacts of the predicted withdrawals as well as the effects of the alternative strategies. The modeling effort was completed in the summer of 2000. This presentation concentrates on the political, scientific, and nontechnical issues in this planning process that complicated the modeling effort. Uncertainties in data, most significantly in distribution and intensity of recharge and withdrawals, significantly impacted the calibration and predictive modeling efforts. Four predictive scenarios, including baseline projections, recurrence of the drought of record, precipitation enhancement, and reduced irrigation demand, were simulated to identify counties at risk of low final ground water storage volume or low levels of satisfied demand by 2050. Copyright ?? 2005 National Ground Water Association.","largerWorkTitle":"Ground Water","language":"English","doi":"10.1111/j.1745-6584.2005.00068.x","issn":"0017467X","usgsCitation":"Rainwater, K., Stovall, J., Frailey, S., and Urban, L., 2005, Transboundary impacts on regional ground water modeling in Texas, <i>in</i> Ground Water, v. 43, no. 5, p. 706-716, https://doi.org/10.1111/j.1745-6584.2005.00068.x.","startPage":"706","endPage":"716","numberOfPages":"11","costCenters":[],"links":[{"id":211150,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6584.2005.00068.x"},{"id":238359,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"5","noUsgsAuthors":false,"publicationDate":"2005-08-05","publicationStatus":"PW","scienceBaseUri":"505bb6bbe4b08c986b326e45","contributors":{"authors":[{"text":"Rainwater, K.","contributorId":61633,"corporation":false,"usgs":true,"family":"Rainwater","given":"K.","email":"","affiliations":[],"preferred":false,"id":415530,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stovall, J.","contributorId":43165,"corporation":false,"usgs":true,"family":"Stovall","given":"J.","email":"","affiliations":[],"preferred":false,"id":415529,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Frailey, S.","contributorId":66054,"corporation":false,"usgs":true,"family":"Frailey","given":"S.","email":"","affiliations":[],"preferred":false,"id":415531,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Urban, L.","contributorId":9062,"corporation":false,"usgs":true,"family":"Urban","given":"L.","email":"","affiliations":[],"preferred":false,"id":415528,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70027803,"text":"70027803 - 2005 - Seasonal variability of aerosol optical depth over Indian subcontinent","interactions":[],"lastModifiedDate":"2012-03-12T17:20:49","indexId":"70027803","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Seasonal variability of aerosol optical depth over Indian subcontinent","docAbstract":"Ganga basin extends 2000 km E-W and about 400 km N-S and is bounded by Himalayas in the north. This basin is unequivocally found to be affected by high aerosols optical depth (AOD) (>0.6) throughout the year. Himalayas restricts movement of aerosols toward north and as a result dynamic nature of aerosol is seen over the Ganga basin. High AOD in this region has detrimental effects on health of more than 460 million people living in this part of India besides adversely affecting clouds formation, monsoonal rainfall pattern and Normalized Difference Vegetation Index (NDVI). Severe drought events (year 2002) in Ganga basin and unexpected failure of monsoon several times, occurred in different parts of Indian subcontinent. Significant rise in AOD (18.7%) over the central part of basin (Kanpur region) have been found to cause substantial decrease in NDVI (8.1%) since 2000. A negative relationship is observed between AOD and NDVI, magnitude of which differs from region to region. Efforts have been made to determine general distribution of AOD and its dominant departure in recent years spatially using Moderate Resolution Imaging Spectroradiometer (MODIS) data. The seasonal changes in aerosol optical depth over the Indo-Gangetic basin is found to very significant as a result of the increasing dust storm events in recent years. ?? 2005 IEEE.","largerWorkTitle":"Proceedings of the Third International Workshop on the Analysis of Multi-Temporal Remote Sensing Images 2005","conferenceTitle":"3rd International Workshop on the Analysis of Multi-Temporal Remote Sensing Images 2005","conferenceDate":"16 May 2005 through 18 May 2005","conferenceLocation":"Biloxi, MS","language":"English","doi":"10.1109/AMTRSI.2005.1469835","isbn":"0780391187; 9780780391185","usgsCitation":"Prasad, A., Singh, R., Singh, A., and Kafatos, M., 2005, Seasonal variability of aerosol optical depth over Indian subcontinent, <i>in</i> Proceedings of the Third International Workshop on the Analysis of Multi-Temporal Remote Sensing Images 2005, v. 2005, Biloxi, MS, 16 May 2005 through 18 May 2005, p. 35-38, https://doi.org/10.1109/AMTRSI.2005.1469835.","startPage":"35","endPage":"38","numberOfPages":"4","costCenters":[],"links":[{"id":211052,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1109/AMTRSI.2005.1469835"},{"id":238211,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2005","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b88e4e4b08c986b316c0d","contributors":{"authors":[{"text":"Prasad, A.K.","contributorId":86956,"corporation":false,"usgs":true,"family":"Prasad","given":"A.K.","email":"","affiliations":[],"preferred":false,"id":415293,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Singh, R.P.","contributorId":68095,"corporation":false,"usgs":true,"family":"Singh","given":"R.P.","email":"","affiliations":[],"preferred":false,"id":415292,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Singh, A.","contributorId":61211,"corporation":false,"usgs":true,"family":"Singh","given":"A.","affiliations":[],"preferred":false,"id":415291,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kafatos, M.","contributorId":23753,"corporation":false,"usgs":true,"family":"Kafatos","given":"M.","email":"","affiliations":[],"preferred":false,"id":415290,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70028027,"text":"70028027 - 2005 - UHF RiverSonde observations of water surface velocity at Threemile Slough, California","interactions":[],"lastModifiedDate":"2012-03-12T17:20:41","indexId":"70028027","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"UHF RiverSonde observations of water surface velocity at Threemile Slough, California","docAbstract":"A UHF RiverSonde system, operating near 350 MHz, has been in operation at Threemile Slough in central California, USA since September 2004. The water in the slough is dominated by tidal effects, with flow reversals four times a day and a peak velocity of about 0.8 m/s in each direction. Water level and water velocity are continually measured by the U. S. Geological Survey at the experiment site. The velocity is measured every 15 minutes by an ultrasonic velocity meter (UVM) which determines the water velocity from two-way acoustic propagation time-difference measurements made across the channel. The RiverSonde also measures surface velocity every 15 minutes using radar resonant backscatter techniques. Velocity and water level data are retrieved through a radio data link and a wideband internet connection. Over a period of several months, the radar-derived mean surface velocity has been very highly correlated with the UVM index velocity several meters below the surface, with a coefficient of determination R2 of 0.976 and an RMS difference of less than 10 cm/s. The wind has a small but measurable effect on the velocities measured by both instruments. In addition to the mean surface velocity across the channel, the RiverSonde system provides an estimate of the cross-channel variation of the surface velocity. ?? 2005 IEEE.","largerWorkTitle":"International Geoscience and Remote Sensing Symposium (IGARSS)","conferenceTitle":"2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005","conferenceDate":"25 July 2005 through 29 July 2005","conferenceLocation":"Seoul","language":"English","doi":"10.1109/IGARSS.2005.1525890","isbn":"0780390504; 9780780390508","usgsCitation":"Teague, C., Barrick, D., Lilleboe, P., Cheng, R.T., and Ruhl, C., 2005, UHF RiverSonde observations of water surface velocity at Threemile Slough, California, <i>in</i> International Geoscience and Remote Sensing Symposium (IGARSS), v. 6, Seoul, 25 July 2005 through 29 July 2005, p. 4383-4386, https://doi.org/10.1109/IGARSS.2005.1525890.","startPage":"4383","endPage":"4386","numberOfPages":"4","costCenters":[],"links":[{"id":210252,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1109/IGARSS.2005.1525890"},{"id":237119,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbb39e4b08c986b328596","contributors":{"authors":[{"text":"Teague, C.C.","contributorId":17758,"corporation":false,"usgs":true,"family":"Teague","given":"C.C.","email":"","affiliations":[],"preferred":false,"id":416206,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Barrick, D.E.","contributorId":86483,"corporation":false,"usgs":true,"family":"Barrick","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":416210,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lilleboe, P.M.","contributorId":25284,"corporation":false,"usgs":true,"family":"Lilleboe","given":"P.M.","email":"","affiliations":[],"preferred":false,"id":416208,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cheng, R. T.","contributorId":23138,"corporation":false,"usgs":false,"family":"Cheng","given":"R.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":416207,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ruhl, C.A.","contributorId":61208,"corporation":false,"usgs":true,"family":"Ruhl","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":416209,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":1001066,"text":"1001066 - 2005 - Distribution and seasonal abundance of trematode parasites (Trematoda: Allocreadiidae: <i>Crepidostomum</i> spp.) in burrowing mayfly nymphs (Ephemeroptera: Ephemeridae: <i>Hexagenia</i> spp.) from connecting rivers of the Laurentian Great Lakes","interactions":[],"lastModifiedDate":"2016-05-09T12:48:19","indexId":"1001066","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1919,"text":"Hydrobiologia","onlineIssn":"1573-5117","printIssn":"0018-8158","active":true,"publicationSubtype":{"id":10}},"title":"Distribution and seasonal abundance of trematode parasites (Trematoda: Allocreadiidae: <i>Crepidostomum</i> spp.) in burrowing mayfly nymphs (Ephemeroptera: Ephemeridae: <i>Hexagenia</i> spp.) from connecting rivers of the Laurentian Great Lakes","docAbstract":"<p>Burrowing-mayfly nymphs such as Hexagenia spp. have been used extensively in North America and Europe as a biomonitoring tool to indicate mesotrophic water quality, yet infestation by associated parasites has not been well documented. We performed laboratory analysis of archived samples of Hexagenia spp. nymphs collected in 1985 and 1986 to provide base-line data on the distribution (1985) and seasonal infestation (1986) of the trematode parasite Crepidostomum spp. in Hexagenia spp. nymphs in connecting rivers between Lakes Superior and Erie of the Laurentian Great Lakes. In May and June 1985, frequency of occurrence of metacercariae was widely distributed throughout the connecting rivers (63% of 203 stations with nymphs), except in areas where nymph densities were relatively low (i.e.,a?Y69 nymphs/mA?). Distribution was probably underestimated in the present study because of low probability (mean = 31%, range = 0-57%) of detecting infestation in a small number of collected nymphs (a??10) at nymph densities a??69/mA?. In 1986, seasonal infestation between April and October occurred in 3.3% (627) of 18696 nymphs. Overall prevalence, mean intensity, and mean abundance of parasites at one station in the St. Marys River indicate parasite transmission occurred between June and September. This period of transmission is dependent on the life-cycle of the parasite. In addition, the life-cycle of Hexagenia spp. determines which annual cohort of nymphs is infested and therefore, the duration of infestation. Although, no impacts of infestation on Hexagenia spp. nymphs were observed in the present study, infestation intensities were high enough (a?Y25 metacercariae per nymph) at one station in the St. Marys River to potentially cause tissue damage in a high proportion (53%) of infested nymphs.</p>","language":"English","publisher":"Springer","doi":"10.1007/s10750-005-4755-4","usgsCitation":"Schloesser, D.W., 2005, Distribution and seasonal abundance of trematode parasites (Trematoda: Allocreadiidae: <i>Crepidostomum</i> spp.) in burrowing mayfly nymphs (Ephemeroptera: Ephemeridae: <i>Hexagenia</i> spp.) from connecting rivers of the Laurentian Great Lakes: Hydrobiologia, v. 548, no. 1, p. 177-189, https://doi.org/10.1007/s10750-005-4755-4.","productDescription":"13 p.","startPage":"177","endPage":"189","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":133147,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"548","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a80e4b07f02db649619","contributors":{"authors":[{"text":"Schloesser, Don W.","contributorId":21485,"corporation":false,"usgs":true,"family":"Schloesser","given":"Don","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":310377,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70029664,"text":"70029664 - 2005 - Baseline models of trace elements in major aquifers of the United States","interactions":[],"lastModifiedDate":"2012-03-12T17:21:06","indexId":"70029664","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","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":"Baseline models of trace elements in major aquifers of the United States","docAbstract":"Trace-element concentrations in baseline samples from a survey of aquifers used as potable-water supplies in the United States are summarized using methods appropriate for data with multiple detection limits. The resulting statistical distribution models are used to develop summary statistics and estimate probabilities of exceeding water-quality standards. The models are based on data from the major aquifer studies of the USGS National Water Quality Assessment (NAWQA) Program. These data were produced with a nationally-consistent sampling and analytical framework specifically designed to determine the quality of the most important potable groundwater resources during the years 1991-2001. The analytical data for all elements surveyed contain values that were below several detection limits. Such datasets are referred to as multiply-censored data. To address this issue, a robust semi-parametric statistical method called regression on order statistics (ROS) is employed. Utilizing the 90th-95th percentile as an arbitrary range for the upper limits of expected baseline concentrations, the models show that baseline concentrations of dissolved Ba and Zn are below 500 ??g/L. For the same percentile range, dissolved As, Cu and Mo concentrations are below 10 ??g/L, and dissolved Ag, Be, Cd, Co, Cr, Ni, Pb, Sb and Se are below 1-5 ??g/L. These models are also used to determine the probabilities that potable ground waters exceed drinking water standards. For dissolved Ba, Cr, Cu, Pb, Ni, Mo and Se, the likelihood of exceeding the US Environmental Protection Agency standards at the well-head is less than 1-1.5%. A notable exception is As, which has approximately a 7% chance of exceeding the maximum contaminant level (10 ??g/L) at the well head.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Applied Geochemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.apgeochem.2005.03.008","issn":"08832927","usgsCitation":"Lee, L., and Helsel, D., 2005, Baseline models of trace elements in major aquifers of the United States: Applied Geochemistry, v. 20, no. 8, p. 1560-1570, https://doi.org/10.1016/j.apgeochem.2005.03.008.","startPage":"1560","endPage":"1570","numberOfPages":"11","costCenters":[],"links":[{"id":240305,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212768,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.apgeochem.2005.03.008"}],"volume":"20","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059efdae4b0c8380cd4a4ae","contributors":{"authors":[{"text":"Lee, L.","contributorId":77730,"corporation":false,"usgs":true,"family":"Lee","given":"L.","email":"","affiliations":[],"preferred":false,"id":423694,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Helsel, D.","contributorId":94492,"corporation":false,"usgs":true,"family":"Helsel","given":"D.","email":"","affiliations":[],"preferred":false,"id":423695,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70029016,"text":"70029016 - 2005 - Thallium isotope composition of the upper continental crust and rivers - An investigation of the continental sources of dissolved marine thallium","interactions":[],"lastModifiedDate":"2012-03-12T17:20:42","indexId":"70029016","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Thallium isotope composition of the upper continental crust and rivers - An investigation of the continental sources of dissolved marine thallium","docAbstract":"The thallium (Tl) concentrations and isotope compositions of various river and estuarine waters, suspended riverine particulates and loess have been determined. These data are used to evaluate whether weathering reactions are associated with significant Tl isotope fractionation and to estimate the average Tl isotope composition of the upper continental crust as well as the mean Tl concentration and isotope composition of river water. Such parameters provide key constraints on the dissolved Tl fluxes to the oceans from rivers and mineral aerosols. The Tl isotope data for loess and suspended riverine detritus are relatively uniform with a mean of ??205Tl = -2.0 ?? 0.3 (??205Tl represents the deviation of the 205Tl/203Tl isotope ratio of a sample from NIST SRM 997 Tl in parts per 104). For waters from four major and eight smaller rivers, the majority were found to have Tl concentrations between 1 and 7 ng/kg. Most have Tl isotope compositions very similar (within ??1.5 ??205Tl) to that deduced for the upper continental crust, which indicates that no significant Tl isotope fractionation occurs during weathering. Based on these results, it is estimated that rivers have a mean natural Tl concentration and isotope composition of 6 ?? 4 ng/kg and ??205Tl = -2.5 ?? 1.0, respectively. In the Amazon estuary, both additions and losses of Tl were observed, and these correlate with variations in Fe and Mn contents. The changes in Tl concentrations have much lower amplitudes, however, and are not associated with significant Tl isotope effects. In the Kalix estuary, the Tl concentrations and isotope compositions can be explained by two-component mixing between river water and a high-salinity end member that is enriched in Tl relative to seawater. These results indicate that Tl can display variable behavior in estuarine systems but large additions and losses of Tl were not observed in the present study. Copyright ?? 2005 Elsevier Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geochimica et Cosmochimica Acta","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.gca.2004.10.025","issn":"00167037","usgsCitation":"Nielsen, S., Rehkamper, M., Porcelli, D., Andersson, P., Halliday, A.N., Swarzenski, P., Latkoczy, C., and Gunther, D., 2005, Thallium isotope composition of the upper continental crust and rivers - An investigation of the continental sources of dissolved marine thallium: Geochimica et Cosmochimica Acta, v. 69, no. 8, p. 2007-2019, https://doi.org/10.1016/j.gca.2004.10.025.","startPage":"2007","endPage":"2019","numberOfPages":"13","costCenters":[],"links":[{"id":209987,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.gca.2004.10.025"},{"id":236769,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"69","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba608e4b08c986b320e3d","contributors":{"authors":[{"text":"Nielsen, S.G.","contributorId":49171,"corporation":false,"usgs":true,"family":"Nielsen","given":"S.G.","email":"","affiliations":[],"preferred":false,"id":420978,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rehkamper, M.","contributorId":21731,"corporation":false,"usgs":true,"family":"Rehkamper","given":"M.","email":"","affiliations":[],"preferred":false,"id":420974,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Porcelli, D.","contributorId":35912,"corporation":false,"usgs":true,"family":"Porcelli","given":"D.","email":"","affiliations":[],"preferred":false,"id":420977,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Andersson, P.","contributorId":94843,"corporation":false,"usgs":true,"family":"Andersson","given":"P.","email":"","affiliations":[],"preferred":false,"id":420981,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Halliday, A. N.","contributorId":87663,"corporation":false,"usgs":true,"family":"Halliday","given":"A.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":420980,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Swarzenski, P.W. 0000-0003-0116-0578","orcid":"https://orcid.org/0000-0003-0116-0578","contributorId":29487,"corporation":false,"usgs":true,"family":"Swarzenski","given":"P.W.","affiliations":[],"preferred":false,"id":420975,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Latkoczy, C.","contributorId":60835,"corporation":false,"usgs":true,"family":"Latkoczy","given":"C.","email":"","affiliations":[],"preferred":false,"id":420979,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Gunther, D.","contributorId":35491,"corporation":false,"usgs":true,"family":"Gunther","given":"D.","email":"","affiliations":[],"preferred":false,"id":420976,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":1003625,"text":"1003625 - 2005 - NPLichen: a database of lichens in the U.S. national parks","interactions":[],"lastModifiedDate":"2015-05-04T13:42:20","indexId":"1003625","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1597,"text":"Evansia","active":true,"publicationSubtype":{"id":10}},"title":"NPLichen: a database of lichens in the U.S. national parks","docAbstract":"<p>NPLichen, a database of lichens in the U. S. National Parks (Wetmore and Bennett, 1992), has been extensively revised and expanded, and is now available for public use at www.ies.wisc.edu/nplichen. As of this writing, the database contains 25,995 records of lichens in 144 national park units. The number of records of lichens not in the North American lichen checklist (Esslinger 1997) is 161, for a total of 26,156. These records include multiple occurrences of a species in some parks because more than one reference has reported presence of species. Consequently, the number of species in parks records (including new to North America) without these duplicate references is 14,986. 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,{"id":70029655,"text":"70029655 - 2005 - Latest Holocene evolution and human disturbance of a channel segment in the Hudson River Estuary","interactions":[],"lastModifiedDate":"2012-03-12T17:21:38","indexId":"70029655","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2667,"text":"Marine Geology","active":true,"publicationSubtype":{"id":10}},"title":"Latest Holocene evolution and human disturbance of a channel segment in the Hudson River Estuary","docAbstract":"The latest Holocene sedimentary record of a cohesive channel and subtidal shoal in the lower Hudson River Estuary was examined to elucidate natural (sea-level rise, sediment transport) and anthropogenic (bulkheading, dredging) influences on the recent morphodynamic evolution of the system. To characterize the seafloor and shallow subbottom, ??? 100 km of high-resolution seismic reflection profiles (chirp) were collected within a 20-km reach of the estuary and correlated with sediment lithologies provided by eight vibracores recovered along seismic lines. Sediment geochronology with 137Cs and 14C was used to estimate intermediate and long-term sedimentation rates, respectively, and historical bathymetric data were analyzed to identify regional patterns of accretion and erosion, and to quantify changes in channel geometry and sediment volume. The shoal lithosome originated around 4 ka presumably with decelerating eustatic sea level rise during the latest Holocene. Long-term sedimentation rates on the shoal (2.3-2.6 mm/yr) are higher than in the channel (2 mm/yr) owing to hydrodynamic conditions that preferentially sequester suspended sediment on the western side of the estuary. As a result, the shoal accretes oblique to the principal axis of tidal transport, and more rapidly than the channel to produce an asymmetric cross-section. Shoal deposits consist of tidally bedded muds and are stratified by minor erosion surfaces that seismic profiles reveal to extend for 10s of meters to kilometers. The frequency and continuity of these surfaces suggest that the surficial shoal is catastrophically stripped on decadal-centennial time scales by elevated tidal flows; tidal erosion maintains the shoal at a uniform depth below sea level and prevents it from transitioning to an intertidal environment. Consequently, the long-term sedimentation rate approximates the rate of sea-level rise in the lower estuary (1-3 mm/yr). After the mid 1800s, the natural geometry of the lower Hudson River Estuary changed rapidly in response to engineering works that forced the channel to self-deepen. Analysis of historical bathymetric data indicates that the channel lost an estimated 3 ?? 106 tons of sediment between ca. 1939 and 2002 (50,000 tons/yr average) by subaqueous erosion, increasing in depth by as much as 4 m in places. Erosion appears to have been concurrent with systematic bulkheading of the shoreline after ca. 1865, which decreased the estuary surface area by ??? 19% overall. Evidently, self-deepening of the channel is a morphodynamic adjustment to reestablish equilibrium cross-sectional area, yet the state of this change locally and elsewhere in the estuary is unknown. Subaqueous erosion documented in this study is a significant source of sediment with implications to the sediment budget and environmental quality of the Hudson River Estuary. ?? 2005 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.margeo.2005.02.026","issn":"00253227","usgsCitation":"Klingbeil, A., and Sommerfield, C., 2005, Latest Holocene evolution and human disturbance of a channel segment in the Hudson River Estuary: Marine Geology, v. 218, no. 1-4, p. 135-153, https://doi.org/10.1016/j.margeo.2005.02.026.","startPage":"135","endPage":"153","numberOfPages":"19","costCenters":[],"links":[{"id":213111,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.margeo.2005.02.026"},{"id":240703,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"218","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a457ae4b0c8380cd67359","contributors":{"authors":[{"text":"Klingbeil, A.D.","contributorId":74582,"corporation":false,"usgs":true,"family":"Klingbeil","given":"A.D.","email":"","affiliations":[],"preferred":false,"id":423660,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sommerfield, C.K.","contributorId":54387,"corporation":false,"usgs":true,"family":"Sommerfield","given":"C.K.","email":"","affiliations":[],"preferred":false,"id":423659,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70028767,"text":"70028767 - 2005 - The inverse problem of refraction travel times, part I: Types of Geophysical Nonuniqueness through Minimization","interactions":[],"lastModifiedDate":"2012-03-12T17:20:57","indexId":"70028767","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3208,"text":"Pure and Applied Geophysics","active":true,"publicationSubtype":{"id":10}},"title":"The inverse problem of refraction travel times, part I: Types of Geophysical Nonuniqueness through Minimization","docAbstract":"In a set of two papers we study the inverse problem of refraction travel times. The purpose of this work is to use the study as a basis for development of more sophisticated methods for finding more reliable solutions to the inverse problem of refraction travel times, which is known to be nonunique. The first paper, \"Types of Geophysical Nonuniqueness through Minimization,\" emphasizes the existence of different forms of nonuniqueness in the realm of inverse geophysical problems. Each type of nonuniqueness requires a different type and amount of a priori information to acquire a reliable solution. Based on such coupling, a nonuniqueness classification is designed. Therefore, since most inverse geophysical problems are nonunique, each inverse problem must be studied to define what type of nonuniqueness it belongs to and thus determine what type of a priori information is necessary to find a realistic solution. The second paper, \"Quantifying Refraction Nonuniqueness Using a Three-layer Model,\" serves as an example of such an approach. However, its main purpose is to provide a better understanding of the inverse refraction problem by studying the type of nonuniqueness it possesses. An approach for obtaining a realistic solution to the inverse refraction problem is planned to be offered in a third paper that is in preparation. The main goal of this paper is to redefine the existing generalized notion of nonuniqueness and a priori information by offering a classified, discriminate structure. Nonuniqueness is often encountered when trying to solve inverse problems. However, possible nonuniqueness diversity is typically neglected and nonuniqueness is regarded as a whole, as an unpleasant \"black box\" and is approached in the same manner by applying smoothing constraints, damping constraints with respect to the solution increment and, rarely, damping constraints with respect to some sparse reference information about the true parameters. In practice, when solving geophysical problems different types of nonuniqueness exist, and thus there are different ways to solve the problems. Nonuniqueness is usually regarded as due to data error, assuming the true geology is acceptably approximated by simple mathematical models. Compounding the nonlinear problems, geophysical applications routinely exhibit exact-data nonuniqueness even for models with very few parameters adding to the nonuniqueness due to data error. While nonuniqueness variations have been defined earlier, they have not been linked to specific use of a priori information necessary to resolve each case. Four types of nonuniqueness, typical for minimization problems are defined with the corresponding methods for inclusion of a priori information to find a realistic solution without resorting to a non-discriminative approach. The above-developed stand-alone classification is expected to be helpful when solving any geophysical inverse problems. ?? Birkha??user Verlag, Basel, 2005.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Pure and Applied Geophysics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s00024-004-2615-1","issn":"00334553","usgsCitation":"Ivanov, J., Miller, R., Xia, J., Steeples, D., and Park, C., 2005, The inverse problem of refraction travel times, part I: Types of Geophysical Nonuniqueness through Minimization: Pure and Applied Geophysics, v. 162, no. 3, p. 447-459, https://doi.org/10.1007/s00024-004-2615-1.","startPage":"447","endPage":"459","numberOfPages":"13","costCenters":[],"links":[{"id":209639,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00024-004-2615-1"},{"id":236302,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"162","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bad5fe4b08c986b323b8f","contributors":{"authors":[{"text":"Ivanov, J.","contributorId":107068,"corporation":false,"usgs":true,"family":"Ivanov","given":"J.","email":"","affiliations":[],"preferred":false,"id":419672,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, R. D.","contributorId":92693,"corporation":false,"usgs":true,"family":"Miller","given":"R. D.","affiliations":[],"preferred":false,"id":419671,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Xia, J.","contributorId":63513,"corporation":false,"usgs":true,"family":"Xia","given":"J.","email":"","affiliations":[],"preferred":false,"id":419670,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Steeples, D.","contributorId":30422,"corporation":false,"usgs":true,"family":"Steeples","given":"D.","email":"","affiliations":[],"preferred":false,"id":419669,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Park, C.B.","contributorId":21714,"corporation":false,"usgs":true,"family":"Park","given":"C.B.","email":"","affiliations":[],"preferred":false,"id":419668,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":1015343,"text":"1015343 - 2005 - Population genetic analysis of Mountain Plover using mitochondrial DNA sequence data","interactions":[],"lastModifiedDate":"2017-12-28T09:20:43","indexId":"1015343","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3551,"text":"The Condor","active":true,"publicationSubtype":{"id":10}},"title":"Population genetic analysis of Mountain Plover using mitochondrial DNA sequence data","docAbstract":"<p>Mountain Plover (<i>Charadrius montanus</i>) distribution and abundance have been reduced drastically in the past 30 years and the conversion of shortgrass prairie to agriculture has caused breeding populations to become geographically isolated. This, coupled with the fact that Mountain Plovers are thought to show fidelity to breeding grounds, leads to the prediction that the isolated breeding populations would be genetically distinct. This pattern, if observed, would have important management implications for a species at risk of extinction. Our study examined genetic variation at two mitochondrial regions for 20–30 individuals from each of four breeding sites. We found no evidence of significant population differentiation in the data from the control region or the ATPase 6/8 region. Nested-clade analysis revealed no relationship between haplotype phylogeny, and geography among the 47 control region haplotypes. In the ATPase 6/8 region, however, one of the two clades provided information suggesting that, historically, there has been continuous range expansion. Analysis of mismatch distributions and Tajima's D suggest that the Mountain Plover underwent a population expansion, following the Pleistocene glacial period. To explain the lack of detectable genetic differentiation among populations, despite their geographic isolation and fidelity to breeding locations, we speculate that there is sufficient female-mediated gene flow to homogenize gene pools among populations. Such gene flow might ensue if pair bonds are formed in mixed flocks on wintering grounds rather than on the summer breeding grounds.</p>","language":"English","publisher":"Cooper Ornithological Society","doi":"10.1650/7594","usgsCitation":"Oyler-McCance, S., St. John, J., Knopf, F., and Quinn, T., 2005, Population genetic analysis of Mountain Plover using mitochondrial DNA sequence data: The Condor, v. 107, no. 2, p. 353-362, https://doi.org/10.1650/7594.","productDescription":"10 p.","startPage":"353","endPage":"362","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":477888,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1650/7594","text":"Publisher Index Page"},{"id":133421,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"107","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad6e4b07f02db683ea6","contributors":{"authors":[{"text":"Oyler-McCance, S.J.","contributorId":75877,"corporation":false,"usgs":true,"family":"Oyler-McCance","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":322950,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"St. John, J.","contributorId":39737,"corporation":false,"usgs":true,"family":"St. John","given":"J.","email":"","affiliations":[],"preferred":false,"id":322949,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Knopf, F.L.","contributorId":26998,"corporation":false,"usgs":true,"family":"Knopf","given":"F.L.","email":"","affiliations":[],"preferred":false,"id":322947,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Quinn, T.W.","contributorId":37285,"corporation":false,"usgs":true,"family":"Quinn","given":"T.W.","email":"","affiliations":[],"preferred":false,"id":322948,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70029677,"text":"70029677 - 2005 - Integrating seismic reflection and geological data and interpretations across an internal basement massif: The southern Appalachian Pine Mountain window, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:21:05","indexId":"70029677","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Integrating seismic reflection and geological data and interpretations across an internal basement massif: The southern Appalachian Pine Mountain window, USA","docAbstract":"The southern Appalachian Pine Mountain window exposes 1.1 Ga Grenvillian basement and its metasedimentary Paleozoic(?) cover through the allochthonous Inner Piedmont. The issue of whether the crustal block inside the window was either transported above the master Appalachian (late Alleghanian) de??collement or is an autochthonous block that was overridden by the de??collement has been debated for some time. New detrital zircon geochronologic data from the cover rocks inside the window suggest this crustal block was derived from Gondwana but docked with Laurentia before the Alleghanian event. Reprocessed deep seismic reflection data from west-central Georgia (pre- and poststack noise reduction, amplitude variation analysis, and prestack depth migration) indicate that a significant band of subhorizontal reflections occurs almost continuously beneath the window collinear with the originally recognized de??collement reflections north of the window. A marked variation in the de??collement image, from strong and coherent north of the window to more diffuse directly beneath the window, is likely a partial consequence of the different geology between the Inner Piedmont and the window. The more diffuse image beneath the window may also result from imaging problems related to changes in topography and fold of cover (i.e., signal-to-noise ratio). Two alternative tectonic models for the Pine Mountain window can partially account for the observed variation in the de??collement reflectivity. (1) The Pine Mountain block could be truncated below by a relatively smooth continuation of the de??collement. The window would thus expose an allochthonous basement duplex or horse-block thrust upward from the south along the Late Proterozoic rifted continental margin. (2) The window represents localized exhumation of autochthonous basement and cover along a zone of distributed intrabasement shearing directly beneath the window. Either model is viable if only reflector geometry is considered; model (1) is favored if both geometry and kinematics of Blue Ridge-Piedmont thrust sheet emplacement are incorporated. In either model, the southern margin of the window merges to the west with the Iapetan early Alleghanian Central Piedmont suture, which juxtaposes North American-affinity Piedmont rocks to the north and exotic Panafrican rocks of the Carolina (Avalon) terrane to the south. Immediately south of the window, this suture dips southward and merges in the lower crust with the late Alleghanian suture joining the Appalachians with Gondwana. ?? 2005 Geological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geological Society of America Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/B25313.1","issn":"00167606","usgsCitation":"McBride, J., Hatcher, R., Stephenson, W.J., and Hooper, R., 2005, Integrating seismic reflection and geological data and interpretations across an internal basement massif: The southern Appalachian Pine Mountain window, USA: Geological Society of America Bulletin, v. 117, no. 5-6, p. 669-686, https://doi.org/10.1130/B25313.1.","startPage":"669","endPage":"686","numberOfPages":"18","costCenters":[],"links":[{"id":240543,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212971,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/B25313.1"}],"volume":"117","issue":"5-6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3c85e4b0c8380cd62de3","contributors":{"authors":[{"text":"McBride, J.H.","contributorId":99712,"corporation":false,"usgs":true,"family":"McBride","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":423788,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hatcher, R. D. Jr.","contributorId":32736,"corporation":false,"usgs":true,"family":"Hatcher","given":"R. D.","suffix":"Jr.","affiliations":[],"preferred":false,"id":423785,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stephenson, W. J.","contributorId":87982,"corporation":false,"usgs":true,"family":"Stephenson","given":"W.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":423786,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hooper, R.J.","contributorId":89354,"corporation":false,"usgs":true,"family":"Hooper","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":423787,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70029477,"text":"70029477 - 2005 - A universal surface complexation framework for modeling proton binding onto bacterial surfaces in geologic settings","interactions":[],"lastModifiedDate":"2012-03-12T17:20:53","indexId":"70029477","displayToPublicDate":"2005-01-01T00:00:00","publicationYear":"2005","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":732,"text":"American Journal of Science","active":true,"publicationSubtype":{"id":10}},"title":"A universal surface complexation framework for modeling proton binding onto bacterial surfaces in geologic settings","docAbstract":"Adsorption onto bacterial cell walls can significantly affect the speciation and mobility of aqueous metal cations in many geologic settings. However, a unified thermodynamic framework for describing bacterial adsorption reactions does not exist. This problem originates from the numerous approaches that have been chosen for modeling bacterial surface protonation reactions. In this study, we compile all currently available potentiometric titration datasets for individual bacterial species, bacterial consortia, and bacterial cell wall components. Using a consistent, four discrete site, non-electrostatic surface complexation model, we determine total functional group site densities for all suitable datasets, and present an averaged set of 'universal' thermodynamic proton binding and site density parameters for modeling bacterial adsorption reactions in geologic systems. Modeling results demonstrate that the total concentrations of proton-active functional group sites for the 36 bacterial species and consortia tested are remarkably similar, averaging 3.2 ?? 1.0 (1??) ?? 10-4 moles/wet gram. Examination of the uncertainties involved in the development of proton-binding modeling parameters suggests that ignoring factors such as bacterial species, ionic strength, temperature, and growth conditions introduces relatively small error compared to the unavoidable uncertainty associated with the determination of cell abundances in realistic geologic systems. Hence, we propose that reasonable estimates of the extent of bacterial cell wall deprotonation can be made using averaged thermodynamic modeling parameters from all of the experiments that are considered in this study, regardless of bacterial species used, ionic strength, temperature, or growth condition of the experiment. The average site densities for the four discrete sites are 1.1 ?? 0.7 ?? 10-4, 9.1 ?? 3.8 ?? 10-5, 5.3 ?? 2.1 ?? 10-5, and 6.6 ?? 3.0 ?? 10-5 moles/wet gram bacteria for the sites with pKa values of 3.1, 4.7, 6.6, and 9.0, respectively. It is our hope that this thermodynamic framework for modeling bacteria-proton binding reactions will also provide the basis for the development of an internally consistent set of bacteria-metal binding constants. 'Universal' constants for bacteria-metal binding reactions can then be used in conjunction with equilibrium constants for other important metal adsorption and complexation reactions to calculate the overall distribution of metals in realistic geologic systems.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"American Journal of Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2475/ajs.305.6-8.826","issn":"00029599","usgsCitation":"Borrok, D., Turner, B., and Fein, J., 2005, A universal surface complexation framework for modeling proton binding onto bacterial surfaces in geologic settings: American Journal of Science, v. 305, no. 6-8 SPEC. ISS., p. 826-853, https://doi.org/10.2475/ajs.305.6-8.826.","startPage":"826","endPage":"853","numberOfPages":"28","costCenters":[],"links":[{"id":477812,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2475/ajs.305.6-8.826","text":"Publisher Index Page"},{"id":210458,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2475/ajs.305.6-8.826"},{"id":237381,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"305","issue":"6-8 SPEC. ISS.","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e60de4b0c8380cd47126","contributors":{"authors":[{"text":"Borrok, D.","contributorId":103461,"corporation":false,"usgs":true,"family":"Borrok","given":"D.","email":"","affiliations":[],"preferred":false,"id":422904,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Turner, B.F.","contributorId":34314,"corporation":false,"usgs":true,"family":"Turner","given":"B.F.","email":"","affiliations":[],"preferred":false,"id":422902,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fein, J.B.","contributorId":97257,"corporation":false,"usgs":true,"family":"Fein","given":"J.B.","email":"","affiliations":[],"preferred":false,"id":422903,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
]}