Estimates of mean annual streamflow are needed for a variety of hydrologic assessments. Away from gage locations, regional regression equations that are a function of upstream area, precipitation, and temperature are commonly used. Geographic information systems technology has facilitated their use for projects, but traditional approaches using the polygon overlay operator have been too inefficient for national scale applications. As an alternative, the Elevation Derivatives for National Applications (EDNA) database was used as a framework for a fully distributed implementation of mean annual streamflow regional regression equations. The raster “flow accumulation” operator was used to efficiently achieve spatially continuous parameterization of the equations for every 30 m grid cell of the conterminous United States (U.S.). Results were confirmed by comparing with measured flows at stations of the Hydro-Climatic Data Network, and their applications value demonstrated in the development of a national geospatial hydropower assessment. Interactive tools at the EDNA website make possible the fast and efficient query of mean annual streamflow for any location in the conterminous U.S., providing a valuable complement to other national initiatives (StreamStats and the National Hydrography Dataset Plus).
","language":"English","publisher":"Wiley","doi":"10.1111/j.1752-1688.2008.00258.x","issn":"10934","usgsCitation":"Verdin, K., and Worstell, B., 2008, A fully distributed implementation of mean annual streamflow regional regression equations: Journal of the American Water Resources Association, v. 44, no. 6, p. 1537-1547, https://doi.org/10.1111/j.1752-1688.2008.00258.x.","productDescription":"11 p.","startPage":"1537","endPage":"1547","numberOfPages":"11","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":240708,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213116,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1752-1688.2008.00258.x"}],"volume":"44","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e3e4e4b0c8380cd462aa","contributors":{"authors":[{"text":"Verdin, K.L.","contributorId":66438,"corporation":false,"usgs":true,"family":"Verdin","given":"K.L.","email":"","affiliations":[],"preferred":false,"id":438816,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Worstell, B. 0000-0001-8927-3336","orcid":"https://orcid.org/0000-0001-8927-3336","contributorId":92059,"corporation":false,"usgs":true,"family":"Worstell","given":"B.","affiliations":[],"preferred":false,"id":438817,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70032994,"text":"70032994 - 2008 - Great Basin paleontological database","interactions":[],"lastModifiedDate":"2012-03-12T17:21:38","indexId":"70032994","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1820,"text":"Geosphere","active":true,"publicationSubtype":{"id":10}},"title":"Great Basin paleontological database","docAbstract":"The U.S. Geological Survey has constructed a paleontological database for the Great Basin physiographic province that can be served over the World Wide Web for data entry, queries, displays, and retrievals. It is similar to the web-database solution that we constructed for Alaskan paleontological data (www.alaskafossil.org). The first phase of this effort was to compile a paleontological bibliography for Nevada and portions of adjacent states in the Great Basin that has recently been completed. In addition, we are also compiling paleontological reports (Known as E&R reports) of the U.S. Geological Survey, which are another extensive source of l,egacy data for this region. Initial population of the database benefited from a recently published conodont data set and is otherwise focused on Devonian and Mississippian localities because strata of this age host important sedimentary exhalative (sedex) Au, Zn, and barite resources and enormons Carlin-type An deposits. In addition, these strata are the most important petroleum source rocks in the region, and record the transition from extension to contraction associated with the Antler orogeny, the Alamo meteorite impact, and biotic crises associated with global oceanic anoxic events. The finished product will provide an invaluable tool for future geologic mapping, paleontological research, and mineral resource investigations in the Great Basin, making paleontological data acquired over nearly the past 150 yr readily available over the World Wide Web. A description of the structure of the database and the web interface developed for this effort are provided herein. This database is being used ws a model for a National Paleontological Database (which we am currently developing for the U.S. Geological Survey) as well as for other paleontological databases now being developed in other parts of the globe. ?? 2008 Geological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geosphere","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/GES00162.1","issn":"1553040X","usgsCitation":"Zhang, N., Blodgett, R.B., and Hofstra, A., 2008, Great Basin paleontological database: Geosphere, v. 4, no. 3, p. 520-535, https://doi.org/10.1130/GES00162.1.","startPage":"520","endPage":"535","numberOfPages":"16","costCenters":[],"links":[{"id":487771,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1130/ges00162.1","text":"Publisher Index Page"},{"id":213271,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/GES00162.1"},{"id":240880,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"4","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2a52e4b0c8380cd5b0a0","contributors":{"authors":[{"text":"Zhang, N.","contributorId":26520,"corporation":false,"usgs":true,"family":"Zhang","given":"N.","email":"","affiliations":[],"preferred":false,"id":438872,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Blodgett, R. B.","contributorId":25176,"corporation":false,"usgs":true,"family":"Blodgett","given":"R.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":438871,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hofstra, A. H. 0000-0002-2450-1593","orcid":"https://orcid.org/0000-0002-2450-1593","contributorId":41426,"corporation":false,"usgs":true,"family":"Hofstra","given":"A. H.","affiliations":[],"preferred":false,"id":438873,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70033004,"text":"70033004 - 2008 - Assigning king eiders to wintering regions in the Bering Sea using stable isotopes of feathers and claws","interactions":[],"lastModifiedDate":"2012-03-12T17:21:37","indexId":"70033004","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2663,"text":"Marine Ecology Progress Series","active":true,"publicationSubtype":{"id":10}},"title":"Assigning king eiders to wintering regions in the Bering Sea using stable isotopes of feathers and claws","docAbstract":"Identification of wintering regions for birds sampled during the breeding season is crucial to understanding how events outside the breeding season may affect populations. We assigned king eiders captured on breeding grounds in northern Alaska to 3 broad geographic wintering regions in the Bering Sea using stable carbon and nitrogen isotopes obtained from head feathers. Using a discriminant function analysis of feathers obtained from birds tracked with satellite transmitters, we estimated that 88 % of feathers were assigned to the region in which they were grown. We then assigned 84 birds of unknown origin to wintering regions based on their head feather isotope ratios, and tested the utility of claws for geographic assignment. Based on the feather results, we estimated that similar proportions of birds in our study area use each of the 3 wintering regions in the Bering Sea. These results are in close agreement with estimates from satellite telemetry and show the usefulness of stable isotope signatures of feathers in assigning marine birds to geographic regions. The use of claws is currently limited by incomplete understanding of claw growth rates. Data presented here will allow managers of eiders, other marine birds, and marine mammals to assign animals to regions in the Bering Sea based on stable isotope signatures of body tissues. ?? Inter-Research 2008.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Ecology Progress Series","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.3354/meps07744","issn":"01718","usgsCitation":"Oppel, S., and Powell, A., 2008, Assigning king eiders to wintering regions in the Bering Sea using stable isotopes of feathers and claws: Marine Ecology Progress Series, v. 373, p. 149-156, https://doi.org/10.3354/meps07744.","startPage":"149","endPage":"156","numberOfPages":"8","costCenters":[],"links":[{"id":488078,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3354/meps07744","text":"Publisher Index Page"},{"id":241079,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213453,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3354/meps07744"}],"volume":"373","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ee8ae4b0c8380cd49de7","contributors":{"authors":[{"text":"Oppel, S.","contributorId":44001,"corporation":false,"usgs":true,"family":"Oppel","given":"S.","affiliations":[],"preferred":false,"id":438926,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Powell, A.N.","contributorId":66194,"corporation":false,"usgs":true,"family":"Powell","given":"A.N.","email":"","affiliations":[],"preferred":false,"id":438927,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70031968,"text":"70031968 - 2008 - Space and habitat use by black bears in the Elwha valley prior to dam removal","interactions":[],"lastModifiedDate":"2017-11-17T14:32:46","indexId":"70031968","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2900,"text":"Northwest Science","onlineIssn":"2161-9859","printIssn":"0029-344X","active":true,"publicationSubtype":{"id":10}},"title":"Space and habitat use by black bears in the Elwha valley prior to dam removal","docAbstract":"Dam removal and subsequent restoration of salmon to the Elwha River is expected to cause a shift in nutrient dynamics within the watershed. To document how this influx of nutrients and energy may affect black bear (Ursus americanus) ecology, we used radio-telemetry to record movements of 11 male and two female black bears in the Elwha Valley from 2002-06. Our objective was to collect baseline data on bear movements prior to dam removal. We calculated annual home ranges, described seasonal timing of den entry and emergence, and described seasonal patterns of distribution and habitat use. Adaptive kernel home ranges were larger formales (mean = 151.1 km2, SE = 21.4) than females (mean = 38.8 km2, SE = 13.0). Males ranged widely and frequently left the watershed during late summer. Further, they exhibited predictable and synchronous patterns of elevation change throughout each year. Bears entered their winter dens between 8 October and 15 December and emerged from dens between 10 March and 9 May. Male bears used low-elevation conifer and hardwood forests along the Elwha floodplain during spring, mid- to high-elevation forests and meadows during early summer, high-elevation forests, meadows and shrubs during late summer, and mid-elevation forests, shrubs and meadows during fall. Data acquired during this study provide important baseline information for comparison after dam removal, when bears may alter their late summer and fall movement and denning patterns to take advantage of energy-rich spawning salmon.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Northwest Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"0029344X","usgsCitation":"Sager-Fradkin, K., Jenkins, K., Happe, P., Beecham, J., Wright, R., and Hoffman, R., 2008, Space and habitat use by black bears in the Elwha valley prior to dam removal: Northwest Science, v. 82, no. SPEC.ISS., p. 164-178.","startPage":"164","endPage":"178","numberOfPages":"15","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":242756,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"82","issue":"SPEC.ISS.","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9404e4b08c986b31a7eb","contributors":{"authors":[{"text":"Sager-Fradkin, K.A.","contributorId":94515,"corporation":false,"usgs":true,"family":"Sager-Fradkin","given":"K.A.","email":"","affiliations":[],"preferred":false,"id":433929,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jenkins, K.J.","contributorId":101371,"corporation":false,"usgs":true,"family":"Jenkins","given":"K.J.","email":"","affiliations":[],"preferred":false,"id":433930,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Happe, P.J.","contributorId":20109,"corporation":false,"usgs":true,"family":"Happe","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":433926,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Beecham, J.J.","contributorId":80101,"corporation":false,"usgs":true,"family":"Beecham","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":433928,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wright, R.G.","contributorId":9622,"corporation":false,"usgs":true,"family":"Wright","given":"R.G.","email":"","affiliations":[],"preferred":false,"id":433925,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hoffman, R.A.","contributorId":61661,"corporation":false,"usgs":true,"family":"Hoffman","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":433927,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70030705,"text":"70030705 - 2008 - Development of a standard reference material for Cr(vi) in contaminated soil","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70030705","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2155,"text":"Journal of Analytical Atomic Spectrometry","active":true,"publicationSubtype":{"id":10}},"title":"Development of a standard reference material for Cr(vi) in contaminated soil","docAbstract":"Over the last several decades, considerable contamination by hexavalent chromium has resulted from the land disposal of Chromite Ore Processing Residue (COPR). COPR contains a number of hexavalent chromium-bearing compounds that were produced in high temperature industrial processes. Concern over the carcinogenic potential of this chromium species, and its environmental mobility, has resulted in efforts to remediate these waste sites. To provide support to analytical measurements of hexavalent chromium, a candidate National Institute of Standards and Technology (NIST) Standard Reference Material?? (SRM 2701), having a hexavalent chromium content of approximately 500 mg kg -1, has been developed using material collected from a waste site in Hudson County, New Jersey, USA. The collection, processing, preparation and preliminary physico-chemical characterization of the material are discussed. A two-phase multi-laboratory testing study was carried out to provide data on material homogeneity and to assess the stability of the material over the duration of the study. The study was designed to incorporate several United States Environmental Protection Agency (USEPA) determinative methods for hexavalent chromium, including Method 6800 which is based on speciated isotope dilution mass spectrometry (SIDMS), an approach which can account for chromium species inter-conversion during the extraction and measurement sequence. This journal is ?? The Royal Society of Chemistry 2008.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Analytical Atomic Spectrometry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1039/b808488b","issn":"02679","usgsCitation":"Nagourney, S., Wilson, S., Buckley, B., Kingston, H., Yang, S., and Long, S., 2008, Development of a standard reference material for Cr(vi) in contaminated soil: Journal of Analytical Atomic Spectrometry, v. 23, no. 11, p. 1550-1554, https://doi.org/10.1039/b808488b.","startPage":"1550","endPage":"1554","numberOfPages":"5","costCenters":[],"links":[{"id":211939,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1039/b808488b"},{"id":239324,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"23","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0044e4b0c8380cd4f698","contributors":{"authors":[{"text":"Nagourney, S.J.","contributorId":104284,"corporation":false,"usgs":true,"family":"Nagourney","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":428284,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilson, S. A. 0000-0002-9468-0005","orcid":"https://orcid.org/0000-0002-9468-0005","contributorId":23561,"corporation":false,"usgs":true,"family":"Wilson","given":"S. A.","affiliations":[],"preferred":false,"id":428280,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Buckley, B.","contributorId":14195,"corporation":false,"usgs":true,"family":"Buckley","given":"B.","email":"","affiliations":[],"preferred":false,"id":428279,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kingston, H.M.S.","contributorId":101875,"corporation":false,"usgs":true,"family":"Kingston","given":"H.M.S.","email":"","affiliations":[],"preferred":false,"id":428283,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Yang, S.-Y.","contributorId":74200,"corporation":false,"usgs":true,"family":"Yang","given":"S.-Y.","email":"","affiliations":[],"preferred":false,"id":428282,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Long, S.E.","contributorId":47580,"corporation":false,"usgs":true,"family":"Long","given":"S.E.","email":"","affiliations":[],"preferred":false,"id":428281,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70030703,"text":"70030703 - 2008 - Long-term water quality and biological responses to multiple best management practices in Rock Creek, Idaho","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70030703","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2529,"text":"Journal of the American Water Resources Association","active":true,"publicationSubtype":{"id":10}},"title":"Long-term water quality and biological responses to multiple best management practices in Rock Creek, Idaho","docAbstract":"Water quality and macroinvertebrate assemblage data from 1981 to 2005 were assessed to evaluate the water quality and biological responses of a western trout stream to the implementation of multiple best management practices (BMPs) on irrigated cropland. Data from Rock Creek near Twin Falls, Idaho, a long-term monitoring site, were assembled from state and federal sources to provide the evaluation. Seasonal loads of the nonpoint source pollutants suspended sediment (SS), total phosphorus (TP), and nitrate-nitrite (NN) were estimated using a regression model with time-series streamflow data and constituent concentrations. Trends in the macroinvertebrate assemblages were evaluated using a number of biological metrics and nonmetric multidimensional scaling ordination. Regression analysis found significant annual decreases in TP and SS flow-adjusted concentrations during the BMP implementation period from 1983 to 1990 of about 7 and 10%, respectively. These results are coincident with the implementation of multiple BMPs on about 75% of the irrigated cropland in the watershed. Macroinvertebrate assemblages during this time also responded with a change in taxa composition resulting in improved biotic index scores. Taxon specific TP and SS optima, empirically derived from a large national dataset, predicted a decrease in SS concentrations of about 37% (52 to 33 mg/l) and a decrease in TP concentrations of about 50% (0.20 to 0.10 mg/l) from 1981 to 1987. Decreasing trends in TP, SS, and NN pollutant loads were primarily the result of naturally low streamflow conditions during the BMP post-implementation period from 1993 to 2005. Trends in macroinvertebrate responses during 1993 to 2005 were confounded by the introduction of the New Zealand mudsnail (Potamopyrgus antipodarum), which approached densities of 100,000 per m 2 in riffle habitat. The occurrence of this invasive species appears to have caused a major shift in composition and function of the macroinvertebrate assemblages. ?? 2008 American Water Resources Association.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of the American Water Resources Association","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1752-1688.2008.00221.x","issn":"10934","usgsCitation":"Maret, T., MacCoy, D., and Carlisle, D., 2008, Long-term water quality and biological responses to multiple best management practices in Rock Creek, Idaho: Journal of the American Water Resources Association, v. 44, no. 5, p. 1248-1269, https://doi.org/10.1111/j.1752-1688.2008.00221.x.","startPage":"1248","endPage":"1269","numberOfPages":"22","costCenters":[],"links":[{"id":211881,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1752-1688.2008.00221.x"},{"id":239254,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"44","issue":"5","noUsgsAuthors":false,"publicationDate":"2008-10-08","publicationStatus":"PW","scienceBaseUri":"505a49b1e4b0c8380cd687f6","contributors":{"authors":[{"text":"Maret, T.R.","contributorId":9015,"corporation":false,"usgs":true,"family":"Maret","given":"T.R.","affiliations":[],"preferred":false,"id":428272,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"MacCoy, D.E.","contributorId":47814,"corporation":false,"usgs":true,"family":"MacCoy","given":"D.E.","affiliations":[],"preferred":false,"id":428273,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Carlisle, D.M.","contributorId":81059,"corporation":false,"usgs":true,"family":"Carlisle","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":428274,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70033276,"text":"70033276 - 2008 - Aseismic slip and fault-normal strain along the central creeping section of the San Andreas fault","interactions":[],"lastModifiedDate":"2012-03-12T17:21:34","indexId":"70033276","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Aseismic slip and fault-normal strain along the central creeping section of the San Andreas fault","docAbstract":"We use GPS data to measure the aseismic slip along the central San Andreas fault (CSAF) and the deformation across adjacent faults. Comparison of EDM and GPS data sets implies that, except for small-scale transients, the fault motion has been steady over the last 40 years. We add 42 new GPS, velocities along the CSAF to constrain the regional strain distribution. Shear strain rates are less than 0.083 ?? 0.010 ??strain/yr adjacent to the creeping SAF, with 1-4.5 mm/yr of contraction across the Coast Ranges. Dislocation modeling of the data gives a deep, long-term slip rate of 31-35 mm/yr and a shallow (0-12 km) creep rate of 28 mm/yr along the central portion of the CSAF, consistent with surface creep measurements. The lower shallow slip rate may be due to the effect of partial locking along the CSAF or reflect reduced creep rates late in the earthquake cycle of the adjoining SAF rupture zones. Copyright 2008 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2008GL034437","issn":"00948","usgsCitation":"Rolandone, F., Burgmann, R., Agnew, D., Johanson, I., Templeton, D., d'Alessio, M., Titus, S., DeMets, C., and Tikoff, B., 2008, Aseismic slip and fault-normal strain along the central creeping section of the San Andreas fault: Geophysical Research Letters, v. 35, no. 14, https://doi.org/10.1029/2008GL034437.","costCenters":[],"links":[{"id":213469,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2008GL034437"},{"id":241095,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"35","issue":"14","noUsgsAuthors":false,"publicationDate":"2008-07-22","publicationStatus":"PW","scienceBaseUri":"5059edb7e4b0c8380cd4997a","contributors":{"authors":[{"text":"Rolandone, F.","contributorId":54783,"corporation":false,"usgs":true,"family":"Rolandone","given":"F.","affiliations":[],"preferred":false,"id":440132,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Burgmann, R.","contributorId":10167,"corporation":false,"usgs":true,"family":"Burgmann","given":"R.","affiliations":[],"preferred":false,"id":440127,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Agnew, D.C.","contributorId":32186,"corporation":false,"usgs":true,"family":"Agnew","given":"D.C.","email":"","affiliations":[],"preferred":false,"id":440129,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Johanson, I.A.","contributorId":36735,"corporation":false,"usgs":true,"family":"Johanson","given":"I.A.","email":"","affiliations":[],"preferred":false,"id":440130,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Templeton, D.C.","contributorId":89016,"corporation":false,"usgs":true,"family":"Templeton","given":"D.C.","email":"","affiliations":[],"preferred":false,"id":440133,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"d'Alessio, M. A.","contributorId":43159,"corporation":false,"usgs":true,"family":"d'Alessio","given":"M. A.","affiliations":[],"preferred":false,"id":440131,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Titus, S.J.","contributorId":101523,"corporation":false,"usgs":true,"family":"Titus","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":440135,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"DeMets, C.","contributorId":19308,"corporation":false,"usgs":true,"family":"DeMets","given":"C.","affiliations":[],"preferred":false,"id":440128,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Tikoff, B.","contributorId":90934,"corporation":false,"usgs":true,"family":"Tikoff","given":"B.","affiliations":[],"preferred":false,"id":440134,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}} ,{"id":70033285,"text":"70033285 - 2008 - Using demography and movement behavior to predict range expansion of the southern sea otter.","interactions":[],"lastModifiedDate":"2017-11-21T17:36:36","indexId":"70033285","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1450,"text":"Ecological Applications","active":true,"publicationSubtype":{"id":10}},"title":"Using demography and movement behavior to predict range expansion of the southern sea otter.","docAbstract":"In addition to forecasting population growth, basic demographic data combined with movement data provide a means for predicting rates of range expansion. Quantitative models of range expansion have rarely been applied to large vertebrates, although such tools could be useful for restoration and management of many threatened but recovering populations. Using the southern sea otter (Enhydra lutris nereis) as a case study, we utilized integro-difference equations in combination with a stage-structured projection matrix that incorporated spatial variation in dispersal and demography to make forecasts of population recovery and range recolonization. In addition to these basic predictions, we emphasize how to make these modeling predictions useful in a management context through the inclusion of parameter uncertainty and sensitivity analysis. Our models resulted in hind-cast (1989–2003) predictions of net population growth and range expansion that closely matched observed patterns. We next made projections of future range expansion and population growth, incorporating uncertainty in all model parameters, and explored the sensitivity of model predictions to variation in spatially explicit survival and dispersal rates. The predicted rate of southward range expansion (median = 5.2 km/yr) was sensitive to both dispersal and survival rates; elasticity analysis indicated that changes in adult survival would have the greatest potential effect on the rate of range expansion, while perturbation analysis showed that variation in subadult dispersal contributed most to variance in model predictions. Variation in survival and dispersal of females at the south end of the range contributed most of the variance in predicted southward range expansion. Our approach provides guidance for the acquisition of further data and a means of forecasting the consequence of specific management actions. Similar methods could aid in the management of other recovering populations.
","language":"English","publisher":"ESA","doi":"10.1890/07-0735.1","usgsCitation":"Tinker, M.T., Doak, D., and Estes, J.A., 2008, Using demography and movement behavior to predict range expansion of the southern sea otter.: Ecological Applications, v. 18, no. 7, p. 1781-1794, https://doi.org/10.1890/07-0735.1.","productDescription":"14 p.","startPage":"1781","endPage":"1794","costCenters":[],"links":[{"id":241201,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"18","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc043e4b08c986b32a013","contributors":{"authors":[{"text":"Tinker, M. T. 0000-0002-3314-839X","orcid":"https://orcid.org/0000-0002-3314-839X","contributorId":54152,"corporation":false,"usgs":false,"family":"Tinker","given":"M.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":440171,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Doak, D.F.","contributorId":39729,"corporation":false,"usgs":true,"family":"Doak","given":"D.F.","email":"","affiliations":[],"preferred":false,"id":440169,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Estes, J. A.","contributorId":53319,"corporation":false,"usgs":true,"family":"Estes","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":440170,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70033296,"text":"70033296 - 2008 - Comparison of remote sensing image processing techniques to identify tornado damage areas from Landsat TM data","interactions":[],"lastModifiedDate":"2015-08-27T13:20:31","indexId":"70033296","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3380,"text":"Sensors","active":true,"publicationSubtype":{"id":10}},"title":"Comparison of remote sensing image processing techniques to identify tornado damage areas from Landsat TM data","docAbstract":"Remote sensing techniques have been shown effective for large-scale damage surveys after a hazardous event in both near real-time or post-event analyses. The paper aims to compare accuracy of common imaging processing techniques to detect tornado damage tracks from Landsat TM data. We employed the direct change detection approach using two sets of images acquired before and after the tornado event to produce a principal component composite images and a set of image difference bands. Techniques in the comparison include supervised classification, unsupervised classification, and objectoriented classification approach with a nearest neighbor classifier. Accuracy assessment is based on Kappa coefficient calculated from error matrices which cross tabulate correctly identified cells on the TM image and commission and omission errors in the result. Overall, the Object-oriented Approach exhibits the highest degree of accuracy in tornado damage detection. PCA and Image Differencing methods show comparable outcomes. While selected PCs can improve detection accuracy 5 to 10%, the Object-oriented Approach performs significantly better with 15-20% higher accuracy than the other two techniques. ?? 2008 by MDPI.
","language":"English","doi":"10.3390/s8021128","issn":"14243210","usgsCitation":"Myint, S., Yuan, M., Cerveny, R., and Giri, C., 2008, Comparison of remote sensing image processing techniques to identify tornado damage areas from Landsat TM data: Sensors, v. 8, no. 2, p. 1128-1156, https://doi.org/10.3390/s8021128.","startPage":"1128","endPage":"1156","numberOfPages":"29","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":476740,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3390/s8021128","text":"Publisher Index Page"},{"id":240827,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"8","issue":"2","noUsgsAuthors":false,"publicationDate":"2008-02-21","publicationStatus":"PW","scienceBaseUri":"5059f888e4b0c8380cd4d17d","contributors":{"authors":[{"text":"Myint, S.W.","contributorId":18103,"corporation":false,"usgs":true,"family":"Myint","given":"S.W.","affiliations":[],"preferred":false,"id":440208,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Yuan, M.","contributorId":20889,"corporation":false,"usgs":true,"family":"Yuan","given":"M.","email":"","affiliations":[],"preferred":false,"id":440210,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cerveny, R.S.","contributorId":18899,"corporation":false,"usgs":true,"family":"Cerveny","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":440209,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Giri, C.P.","contributorId":29647,"corporation":false,"usgs":true,"family":"Giri","given":"C.P.","email":"","affiliations":[],"preferred":false,"id":440211,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70030646,"text":"70030646 - 2008 - Gas and gas hydrate distribution around seafloor seeps in Mississippi Canyon, Northern Gulf of Mexico, using multi-resolution seismic imagery","interactions":[],"lastModifiedDate":"2012-03-12T17:21:14","indexId":"70030646","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2682,"text":"Marine and Petroleum Geology","active":true,"publicationSubtype":{"id":10}},"title":"Gas and gas hydrate distribution around seafloor seeps in Mississippi Canyon, Northern Gulf of Mexico, using multi-resolution seismic imagery","docAbstract":"To determine the impact of seeps and focused flow on the occurrence of shallow gas hydrates, several seafloor mounds in the Atwater Valley lease area of the Gulf of Mexico were surveyed with a wide range of seismic frequencies. Seismic data were acquired with a deep-towed, Helmholz resonator source (220-820 Hz); a high-resolution, Generator-Injector air-gun (30-300 Hz); and an industrial air-gun array (10-130 Hz). Each showed a significantly different response in this weakly reflective, highly faulted area. Seismic modeling and observations of reversed-polarity reflections and small scale diffractions are consistent with a model of methane transport dominated regionally by diffusion but punctuated by intense upward advection responsible for the bathymetric mounds, as well as likely advection along pervasive filamentous fractures away from the mounds.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine and Petroleum Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.marpetgeo.2008.01.015","issn":"02648","usgsCitation":"Wood, W., Hart, P., Hutchinson, D.R., Dutta, N., Snyder, F., Coffin, R., and Gettrust, J., 2008, Gas and gas hydrate distribution around seafloor seeps in Mississippi Canyon, Northern Gulf of Mexico, using multi-resolution seismic imagery: Marine and Petroleum Geology, v. 25, no. 9, p. 952-959, https://doi.org/10.1016/j.marpetgeo.2008.01.015.","startPage":"952","endPage":"959","numberOfPages":"8","costCenters":[],"links":[{"id":476716,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://hdl.handle.net/1912/2619","text":"External Repository"},{"id":212108,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.marpetgeo.2008.01.015"},{"id":239531,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a14bfe4b0c8380cd54b48","contributors":{"authors":[{"text":"Wood, W.T.","contributorId":51516,"corporation":false,"usgs":true,"family":"Wood","given":"W.T.","email":"","affiliations":[],"preferred":false,"id":428020,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hart, P. E.","contributorId":10773,"corporation":false,"usgs":true,"family":"Hart","given":"P. E.","affiliations":[],"preferred":false,"id":428018,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hutchinson, D. R.","contributorId":31770,"corporation":false,"usgs":true,"family":"Hutchinson","given":"D.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":428019,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dutta, N.","contributorId":7086,"corporation":false,"usgs":true,"family":"Dutta","given":"N.","email":"","affiliations":[],"preferred":false,"id":428017,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Snyder, F.","contributorId":84160,"corporation":false,"usgs":true,"family":"Snyder","given":"F.","email":"","affiliations":[],"preferred":false,"id":428023,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Coffin, R.B.","contributorId":59628,"corporation":false,"usgs":true,"family":"Coffin","given":"R.B.","email":"","affiliations":[],"preferred":false,"id":428021,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Gettrust, J.F.","contributorId":80080,"corporation":false,"usgs":true,"family":"Gettrust","given":"J.F.","affiliations":[],"preferred":false,"id":428022,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70033307,"text":"70033307 - 2008 - De-convoluting mixed crude oil in Prudhoe Bay Field, North Slope, Alaska","interactions":[],"lastModifiedDate":"2012-03-12T17:21:34","indexId":"70033307","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2958,"text":"Organic Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"De-convoluting mixed crude oil in Prudhoe Bay Field, North Slope, Alaska","docAbstract":"Seventy-four crude oil samples from the Barrow arch on the North Slope of Alaska were studied to assess the relative volumetric contributions from different source rocks to the giant Prudhoe Bay Field. We applied alternating least squares to concentration data (ALS-C) for 46 biomarkers in the range C19-C35 to de-convolute mixtures of oil generated from carbonate rich Triassic Shublik Formation and clay rich Jurassic Kingak Shale and Cretaceous Hue Shale-gamma ray zone (Hue-GRZ) source rocks. ALS-C results for 23 oil samples from the prolific Ivishak Formation reservoir of the Prudhoe Bay Field indicate approximately equal contributions from Shublik Formation and Hue-GRZ source rocks (37% each), less from the Kingak Shale (26%), and little or no contribution from other source rocks. These results differ from published interpretations that most oil in the Prudhoe Bay Field originated from the Shublik Formation source rock. With few exceptions, the relative contribution of oil from the Shublik Formation decreases, while that from the Hue-GRZ increases in reservoirs along the Barrow arch from Point Barrow in the northwest to Point Thomson in the southeast (???250 miles or 400 km). The Shublik contribution also decreases to a lesser degree between fault blocks within the Ivishak pool from west to east across the Prudhoe Bay Field. ALS-C provides a robust means to calculate the relative amounts of two or more oil types in a mixture. Furthermore, ALS-C does not require that pure end member oils be identified prior to analysis or that laboratory mixtures of these oils be prepared to evaluate mixing. ALS-C of biomarkers reliably de-convolutes mixtures because the concentrations of compounds in mixtures vary as linear functions of the amount of each oil type. ALS of biomarker ratios (ALS-R) cannot be used to de-convolute mixtures because compound ratios vary as nonlinear functions of the amount of each oil type.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Organic Geochemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.orggeochem.2008.03.001","issn":"01466380","usgsCitation":"Peters, K.E., Scott, R.L., Zumberge, J., Valin, Z., and Bird, K.J., 2008, De-convoluting mixed crude oil in Prudhoe Bay Field, North Slope, Alaska: Organic Geochemistry, v. 39, no. 6, p. 623-645, https://doi.org/10.1016/j.orggeochem.2008.03.001.","startPage":"623","endPage":"645","numberOfPages":"23","costCenters":[],"links":[{"id":240993,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213374,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.orggeochem.2008.03.001"}],"volume":"39","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fde9e4b0c8380cd4e9e8","contributors":{"authors":[{"text":"Peters, K. E.","contributorId":17295,"corporation":false,"usgs":true,"family":"Peters","given":"K.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":440269,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Scott, Ramos L.","contributorId":43177,"corporation":false,"usgs":true,"family":"Scott","given":"Ramos","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":440271,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zumberge, J.E.","contributorId":37867,"corporation":false,"usgs":true,"family":"Zumberge","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":440270,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Valin, Z. C. 0000-0001-6199-6700","orcid":"https://orcid.org/0000-0001-6199-6700","contributorId":75165,"corporation":false,"usgs":true,"family":"Valin","given":"Z. C.","affiliations":[],"preferred":false,"id":440273,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bird, K. J.","contributorId":57824,"corporation":false,"usgs":false,"family":"Bird","given":"K.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":440272,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70030414,"text":"70030414 - 2008 - Demographic analysis of Lost River sucker and shortnose sucker populations in Upper Klamath Lake, Oregon","interactions":[],"lastModifiedDate":"2012-03-12T17:21:03","indexId":"70030414","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"Demographic analysis of Lost River sucker and shortnose sucker populations in Upper Klamath Lake, Oregon","docAbstract":"We used 13 years (1995-2007) of capture-mark-recapture data to assess population dynamics of endangered Lost River suckers Deltistes luxatus and shortnose suckers Chasmistes brevirostris in Upper Klamath Lake, Oregon. The Cormack-Jolly-Seber method was used to estimate survival, and information theoretic modeling was used to assess variation due to time, gender, species, and spawning subpopulations. Length data were used to detect multiple year-class failures and events of high recruitment into adult spawning populations. Average annual survival probability was 0.88 for Lost River suckers and 0.76 for shortnose suckers. Mean life span estimates based on these survival rates indicated that Lost River suckers survived long enough on average to attempt reproduction eight times, whereas shortnose suckers only survived to spawn three to four times. Shortnose sucker survival was not only poor in years of fish kills (1995-1997) but also was low in years without fish kills (i.e., 2002 and 2004). This suggests that high mortality occurs in some years but is not necessarily associated with fish kills. Annual survival probabilities were not only different between the two species but also differed between two spawning subpopulations of Lost River suckers. Length composition data indicated that recruitment into spawning populations only occurred intermittently. Populations of both species transitioned from primarily old individuals with little size diversity and consistently poor recruitment in the late 1980s and early 1990s to mostly small, recruit-sized fish by the late 1990s. A better understanding of the factors influencing adult survival and recruitment into spawning populations is needed. Monitoring these vital parameters will provide a quantitative means to evaluate population status and assess the effectiveness of conservation and recovery efforts.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Transactions of the American Fisheries Society","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/T06-235.1","issn":"00028","usgsCitation":"Janney, E., Shively, R., Hayes, B., Barry, P., and Perkins, D., 2008, Demographic analysis of Lost River sucker and shortnose sucker populations in Upper Klamath Lake, Oregon: Transactions of the American Fisheries Society, v. 137, no. 6, p. 1812-1825, https://doi.org/10.1577/T06-235.1.","startPage":"1812","endPage":"1825","numberOfPages":"14","costCenters":[],"links":[{"id":211834,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/T06-235.1"},{"id":239204,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"137","issue":"6","noUsgsAuthors":false,"publicationDate":"2011-01-09","publicationStatus":"PW","scienceBaseUri":"5059fe7de4b0c8380cd4ed5a","contributors":{"authors":[{"text":"Janney, E.C.","contributorId":43955,"corporation":false,"usgs":true,"family":"Janney","given":"E.C.","affiliations":[],"preferred":false,"id":427054,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shively, R.S.","contributorId":79642,"corporation":false,"usgs":true,"family":"Shively","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":427055,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hayes, B.S.","contributorId":34721,"corporation":false,"usgs":true,"family":"Hayes","given":"B.S.","email":"","affiliations":[],"preferred":false,"id":427053,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Barry, P.M.","contributorId":31574,"corporation":false,"usgs":true,"family":"Barry","given":"P.M.","email":"","affiliations":[],"preferred":false,"id":427052,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Perkins, D.","contributorId":83589,"corporation":false,"usgs":true,"family":"Perkins","given":"D.","affiliations":[],"preferred":false,"id":427056,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70033329,"text":"70033329 - 2008 - An overview of methods for developing bioenergetic and life history models for rare and endangered species","interactions":[],"lastModifiedDate":"2012-03-12T17:21:35","indexId":"70033329","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"An overview of methods for developing bioenergetic and life history models for rare and endangered species","docAbstract":"Many fish species are at risk to some degree, and conservation efforts are planned or underway to preserve sensitive populations. For many imperiled species, models could serve as useful tools for researchers and managers as they seek to understand individual growth, quantify predator-prey dynamics, and identify critical sources of mortality. Development and application of models for rare species however, has been constrained by small population sizes, difficulty in obtaining sampling permits, limited opportunities for funding, and regulations on how endangered species can be used in laboratory studies. Bioenergetic and life history models should help with endangered species-recovery planning since these types of models have been used successfully in the last 25 years to address management problems for many commercially and recreationally important fish species. In this paper we discuss five approaches to developing models and parameters for rare species. Borrowing model functions and parameters from related species is simple, but uncorroborated results can be misleading. Directly estimating parameters with laboratory studies may be possible for rare species that have locally abundant populations. Monte Carlo filtering can be used to estimate several parameters by means of performing simple laboratory growth experiments to first determine test criteria. Pattern-oriented modeling (POM) is a new and developing field of research that uses field-observed patterns to build, test, and parameterize models. Models developed using the POM approach are closely linked to field data, produce testable hypotheses, and require a close working relationship between modelers and empiricists. Artificial evolution in individual-based models can be used to gain insight into adaptive behaviors for poorly understood species and thus can fill in knowledge gaps. ?? Copyright by the American Fisheries Society 2008.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Transactions of the American Fisheries Society","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/T05-045.1","issn":"00028487","usgsCitation":"Petersen, J., DeAngelis, D., and Paukert, C., 2008, An overview of methods for developing bioenergetic and life history models for rare and endangered species: Transactions of the American Fisheries Society, v. 137, no. 1, p. 244-253, https://doi.org/10.1577/T05-045.1.","startPage":"244","endPage":"253","numberOfPages":"10","costCenters":[],"links":[{"id":487778,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1577/t05-045.1","text":"Publisher Index Page"},{"id":213317,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/T05-045.1"},{"id":240929,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"137","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-01-09","publicationStatus":"PW","scienceBaseUri":"5059eaabe4b0c8380cd489e0","contributors":{"authors":[{"text":"Petersen, J.H.","contributorId":72154,"corporation":false,"usgs":true,"family":"Petersen","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":440364,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"DeAngelis, D.L. 0000-0002-1570-4057","orcid":"https://orcid.org/0000-0002-1570-4057","contributorId":32470,"corporation":false,"usgs":true,"family":"DeAngelis","given":"D.L.","affiliations":[],"preferred":false,"id":440363,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Paukert, C.P.","contributorId":10151,"corporation":false,"usgs":true,"family":"Paukert","given":"C.P.","email":"","affiliations":[],"preferred":false,"id":440362,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70033330,"text":"70033330 - 2008 - Joint inversion of fundamental and higher mode Rayleigh waves","interactions":[],"lastModifiedDate":"2012-03-12T17:21:35","indexId":"70033330","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1234,"text":"Chinese Journal of Geophysics (Acta Geophysica Sinica)","active":true,"publicationSubtype":{"id":10}},"title":"Joint inversion of fundamental and higher mode Rayleigh waves","docAbstract":"In this paper, we analyze the characteristics of the phase velocity of fundamental and higher mode Rayleigh waves in a six-layer earth model. The results show that fundamental mode is more sensitive to the shear velocities of shallow layers (< 7 m) and concentrated in a very narrow band (around 18 Hz) while higher modes are more sensitive to the parameters of relatively deeper layers and distributed over a wider frequency band. These properties provide a foundation of using a multi-mode joint inversion to define S-wave velocity. Inversion results of both synthetic data and a real-world example demonstrate that joint inversion with the damped least squares method and the SVD (Singular Value Decomposition) technique to invert Rayleigh waves of fundamental and higher modes can effectively reduce the ambiguity and improve the accuracy of inverted S-wave velocities.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Chinese Journal of Geophysics (Acta Geophysica Sinica)","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"Chinese","issn":"00015733","usgsCitation":"Luo, Y., Xia, J., Liu, J., and Liu, Q., 2008, Joint inversion of fundamental and higher mode Rayleigh waves: Chinese Journal of Geophysics (Acta Geophysica Sinica), v. 51, no. 1, p. 242-249.","startPage":"242","endPage":"249","numberOfPages":"8","costCenters":[],"links":[{"id":240930,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"51","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4001e4b0c8380cd649c5","contributors":{"authors":[{"text":"Luo, Y.-H.","contributorId":25765,"corporation":false,"usgs":true,"family":"Luo","given":"Y.-H.","email":"","affiliations":[],"preferred":false,"id":440366,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Xia, J.-H.","contributorId":58105,"corporation":false,"usgs":true,"family":"Xia","given":"J.-H.","email":"","affiliations":[],"preferred":false,"id":440367,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Liu, J.-P.","contributorId":102695,"corporation":false,"usgs":true,"family":"Liu","given":"J.-P.","email":"","affiliations":[],"preferred":false,"id":440368,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Liu, Q.-S.","contributorId":15017,"corporation":false,"usgs":true,"family":"Liu","given":"Q.-S.","email":"","affiliations":[],"preferred":false,"id":440365,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70033341,"text":"70033341 - 2008 - Chromium, chromium isotopes and selected trace elements, western Mojave Desert, USA","interactions":[],"lastModifiedDate":"2018-10-17T10:11:26","indexId":"70033341","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","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":"Chromium, chromium isotopes and selected trace elements, western Mojave Desert, USA","docAbstract":"Chromium(VI) concentrations in excess of the California Maximum Contaminant Level (MCL) of 50 μg/L occur naturally in alkaline, oxic ground-water in alluvial aquifers in the western Mojave Desert, southern California. The highest concentrations were measured in aquifers eroded from mafic rock, but Cr(VI) as high as 27 μg/L was measured in aquifers eroded from granitic rock. Chromium(VI) concentrations did not exceed 5 μg/L at pH < 7.5 regardless of geology. δ53Cr values in native ground-water ranged from 0.7 to 5.1‰ and values were fractionated relative to the average δ53Cr composition of 0‰ in the earth’s crust. Positive δ53Cr values of 1.2 and 2.3‰ were measured in ground-water recharge areas having low Cr concentrations, consistent with the addition of Cr(VI) that was fractionated on mineral surfaces prior to entering solution. δ53Cr values, although variable, did not consistently increase or decrease with increasing Cr concentrations as ground-water flowed down gradient through more oxic portions of the aquifer. However, increasing δ53Cr values were observed as dissolved O2 concentrations decreased, and Cr(VI) was reduced to Cr(III), and subsequently removed from solution. As a result, the highest δ53Cr values were measured in water from deep wells, and wells in discharge areas near dry lakes at the downgradient end of long flow paths through alluvial aquifers. δ53Cr values at an industrial site overlying mafic alluvium having high natural background Cr(VI) concentrations ranged from −0.1 to 3.2‰. Near zero δ53Cr values at the site were the result of anthropogenic Cr. However, mixing with native ground-water and fractionation of Cr within the plume increased δ53Cr values at the site. Although δ53Cr was not necessarily diagnostic of anthropogenic Cr, it was possible to identify the extent of anthropogenic Cr at the site on the basis of the δ53Cr values in conjunction with major-ion data, and the δ18O and δD composition of water from wells.