{"pageNumber":"914","pageRowStart":"22825","pageSize":"25","recordCount":40798,"records":[{"id":70032879,"text":"70032879 - 2008 - Regional population viability of grassland songbirds: Effects of agricultural management","interactions":[],"lastModifiedDate":"2012-03-12T17:21:24","indexId":"70032879","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1015,"text":"Biological Conservation","active":true,"publicationSubtype":{"id":10}},"title":"Regional population viability of grassland songbirds: Effects of agricultural management","docAbstract":"Although population declines of grassland songbirds in North America and Europe are well-documented, the effect of local processes on regional population persistence is unclear. To assess population viability of grassland songbirds at a regional scale (???150,000 ha), we quantified Savannah Sparrow Passerculus sandwichensis and Bobolink Dolichonyx oryzivorus annual productivity, adult apparent survival, habitat selection, and density in the four most (regionally) common grassland treatments. We applied these data to a female-based, stochastic, pre-breeding population model to examine whether current grassland management practices can sustain viable populations of breeding songbirds. Additionally, we evaluated six conservation strategies to determine which would most effectively increase population trends. Given baseline conditions, over 10 years, simulations showed a slightly declining or stable Savannah Sparrow population (mean bootstrap ?? = 0.99; 95% CI = 1.00-0.989) and severely declining Bobolink population (mean bootstrap ?? = 0.75; 95% CI = 0.753-0.747). Savannah Sparrow populations were sensitive to increases in all demographic parameters, particularly adult survival. However for Bobolinks, increasing adult apparent survival, juvenile apparent survival, or preference by changing habitat selection cues for late-hayed fields (highest quality) only slightly decreased the rate of decline. For both species, increasing the amount of high-quality habitat (late- and middle-hayed) marginally slowed population declines; increasing the amount of low-quality habitat (early-hayed and grazed) marginally increased population declines. Both species were most sensitive to low productivity and survival on early-hayed fields, despite the fact that this habitat comprised only 18% of the landscape. Management plans for all agricultural regions should increase quality on both low- and high-quality fields by balancing habitat needs, nesting phenology, and species' response to management. ?? 2008 Elsevier Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Biological Conservation","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.biocon.2008.09.011","issn":"00063","usgsCitation":"Perlut, N., Strong, A., Donovan, T., and Buckley, N.J., 2008, Regional population viability of grassland songbirds: Effects of agricultural management: Biological Conservation, v. 141, no. 12, p. 3139-3151, https://doi.org/10.1016/j.biocon.2008.09.011.","startPage":"3139","endPage":"3151","numberOfPages":"13","costCenters":[],"links":[{"id":214023,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.biocon.2008.09.011"},{"id":241709,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"141","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e4a546e4b0e8fec6cdbdca","contributors":{"authors":[{"text":"Perlut, N.G.","contributorId":12671,"corporation":false,"usgs":true,"family":"Perlut","given":"N.G.","affiliations":[],"preferred":false,"id":438341,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Strong, A.M.","contributorId":39568,"corporation":false,"usgs":true,"family":"Strong","given":"A.M.","email":"","affiliations":[],"preferred":false,"id":438343,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Donovan, T.M.","contributorId":91602,"corporation":false,"usgs":true,"family":"Donovan","given":"T.M.","email":"","affiliations":[],"preferred":false,"id":438344,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Buckley, N. J.","contributorId":38757,"corporation":false,"usgs":false,"family":"Buckley","given":"N.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":438342,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031763,"text":"70031763 - 2008 - Stand-level forest structure and avian habitat: Scale dependencies in predicting occurrence in a heterogeneous forest","interactions":[],"lastModifiedDate":"2012-03-12T17:21:11","indexId":"70031763","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1688,"text":"Forest Science","active":true,"publicationSubtype":{"id":10}},"title":"Stand-level forest structure and avian habitat: Scale dependencies in predicting occurrence in a heterogeneous forest","docAbstract":"We explored the role of stand-level forest structure and spatial extent of forest sampling in models of avian occurrence in northern hardwood-conifer forests for two species: black-throated blue warbler (Dendroica caerulescens) and ovenbird (Seiurus aurocapillus). We estimated site occupancy from point counts at 20 sites and characterized the forest structure at these sites at three spatial extents (0.2, 3.0, and 12.0 ha). Weight of evidence was greatest for habitat models using forest stand structure at the 12.0-ha extent and diminished only slightly at the 3.0-ha extent, a scale that was slightly larger than the average territory size of both species. Habitat models characterized at the 0.2-ha extent had low support, yet are the closest in design to those used in many of the habitat studies we reviewed. These results suggest that the role of stand-level vegetation may have been underestimated in the past, which will be of interest to land managers who use habitat models to assess the suitability of habitat for species of concern. Copyright ?? 2008 by the Society of American Foresters.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Forest Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"0015749X","usgsCitation":"Smith, K., Keeton, W., Donovan, T., and Mitchell, B., 2008, Stand-level forest structure and avian habitat: Scale dependencies in predicting occurrence in a heterogeneous forest: Forest Science, v. 54, no. 1, p. 36-46.","startPage":"36","endPage":"46","numberOfPages":"11","costCenters":[],"links":[{"id":240051,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"54","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b96a6e4b08c986b31b621","contributors":{"authors":[{"text":"Smith, K.M.","contributorId":51096,"corporation":false,"usgs":true,"family":"Smith","given":"K.M.","email":"","affiliations":[],"preferred":false,"id":433019,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Keeton, W.S.","contributorId":35936,"corporation":false,"usgs":true,"family":"Keeton","given":"W.S.","email":"","affiliations":[],"preferred":false,"id":433018,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Donovan, T.M.","contributorId":91602,"corporation":false,"usgs":true,"family":"Donovan","given":"T.M.","email":"","affiliations":[],"preferred":false,"id":433021,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mitchell, B.","contributorId":74581,"corporation":false,"usgs":true,"family":"Mitchell","given":"B.","affiliations":[],"preferred":false,"id":433020,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70032868,"text":"70032868 - 2008 - Micropaleontologic record of late Pliocene and Quaternary paleoenvironments in the northern Albemarle Embayment, North Carolina, U.S.A.","interactions":[],"lastModifiedDate":"2019-12-30T09:01:52","indexId":"70032868","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2996,"text":"Palaeogeography, Palaeoclimatology, Palaeoecology","printIssn":"0031-0182","active":true,"publicationSubtype":{"id":10}},"title":"Micropaleontologic record of late Pliocene and Quaternary paleoenvironments in the northern Albemarle Embayment, North Carolina, U.S.A.","docAbstract":"<p>Micropaleontological data provide a strong actualistic basis for detailed interpretations of Quaternary paleoenvironmental change. The 90&nbsp;m-thick Quaternary record of the Albemarle Embayment in the mid-Atlantic coastal plain of the USA provides an excellent opportunity to use such an approach in a region where the details of Quaternary environmental change are poorly known.</p><p>The foraminiferal record in nine cores from the northern Outer Banks, east of Albemarle Sound, North Carolina, indicates the deposition of subhorizontal, mostly open-marine early to late Pleistocene units unconformably upon a basement of late Pliocene reduced-oxygen, fine-grained, shelf-basin deposits. Pollen data record several warm–cool fluctuations within the early to mid-Pleistocene deposits. Diatom data indicate that some fresh and brackish-water units occur within the generally open-marine Pleistocene succession.</p><p>A channel cut by the paleo-Roanoke River during the last glacial sea-level lowstand occurs in the northern part of the study area. Pollen indicates that the basal fluvial valley fill accumulated in cooler than modern climate conditions in the latest Pleistocene. Overlying silts and muds accumulated under cool climatic, estuarine conditions according to diatom and pollen data. Radiocarbon ages from the estuarine deposits indicate that the bulk of these sediments accumulated during the latest Pleistocene.</p><p>The estuarine channel-fill deposits are overlain by Holocene open-marine sands deposited as the rising sea transgressed into the estuary approximately 8.5 to 9.0&nbsp;kyr BP. Within the barrier island drill cores of this study, fully marine sedimentation occurred throughout the Holocene. However, immediately west of the present barrier island, mid- to late Holocene estuarine deposits underlie the modern Albemarle Sound. The islands that currently form a continuous barrier across the mouth of Albemarle Sound have a complex history of Holocene construction and destruction and large portions of them may be less than 3&nbsp;kyr old. The barrier island sands overlie open-marine sands of Colington Shoal in the north and to the south overlie fluvial and marine sand filling paleo-Roanoke tributary valleys.</p><p>The Pleistocene sediments underlying the northern Outer Banks study area are mainly of open inner to mid-shelf origin. If, as is likely, sea level continues to rise, a return to such environmental conditions is likely in the near future.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.palaeo.2008.03.012","issn":"00310182","usgsCitation":"Culver, S., Farrell, K., Mallinson, D.J., Horton, B.P., Willard, D., Thieler, E., Riggs, S., Snyder, S., Wehmiller, J., Bernhardt, C., and Hillier, C., 2008, Micropaleontologic record of late Pliocene and Quaternary paleoenvironments in the northern Albemarle Embayment, North Carolina, U.S.A.: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 264, no. 1-2, p. 54-77, https://doi.org/10.1016/j.palaeo.2008.03.012.","productDescription":"24 p.","startPage":"54","endPage":"77","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":241502,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"North Carolina","otherGeospatial":"Albemarle Embayment","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -75.99105834960938,\n              35.81224507919506\n            ],\n            [\n              -75.5804443359375,\n              35.81224507919506\n            ],\n            [\n              -75.5804443359375,\n              36.28634929429456\n            ],\n            [\n              -75.99105834960938,\n              36.28634929429456\n            ],\n            [\n              -75.99105834960938,\n              35.81224507919506\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"264","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a568ee4b0c8380cd6d68a","contributors":{"authors":[{"text":"Culver, S.J.","contributorId":53970,"corporation":false,"usgs":true,"family":"Culver","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":438297,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Farrell, K.M.","contributorId":106573,"corporation":false,"usgs":true,"family":"Farrell","given":"K.M.","email":"","affiliations":[],"preferred":false,"id":438304,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mallinson, D. J.","contributorId":71745,"corporation":false,"usgs":true,"family":"Mallinson","given":"D.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":438299,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Horton, B. P.","contributorId":96816,"corporation":false,"usgs":false,"family":"Horton","given":"B.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":438303,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Willard, Debra  A. 0000-0003-4878-0942","orcid":"https://orcid.org/0000-0003-4878-0942","contributorId":85982,"corporation":false,"usgs":true,"family":"Willard","given":"Debra  A.","affiliations":[],"preferred":false,"id":438300,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Thieler, E.R. 0000-0003-4311-9717","orcid":"https://orcid.org/0000-0003-4311-9717","contributorId":93082,"corporation":false,"usgs":true,"family":"Thieler","given":"E.R.","affiliations":[],"preferred":false,"id":438302,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Riggs, S.R.","contributorId":29807,"corporation":false,"usgs":true,"family":"Riggs","given":"S.R.","email":"","affiliations":[],"preferred":false,"id":438295,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Snyder, S.W.","contributorId":92875,"corporation":false,"usgs":true,"family":"Snyder","given":"S.W.","email":"","affiliations":[],"preferred":false,"id":438301,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Wehmiller, J.F.","contributorId":37891,"corporation":false,"usgs":false,"family":"Wehmiller","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":438296,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Bernhardt, C.E.","contributorId":65554,"corporation":false,"usgs":true,"family":"Bernhardt","given":"C.E.","email":"","affiliations":[],"preferred":false,"id":438298,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Hillier, C.","contributorId":11012,"corporation":false,"usgs":true,"family":"Hillier","given":"C.","email":"","affiliations":[],"preferred":false,"id":438294,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}}
,{"id":70032846,"text":"70032846 - 2008 - Evaluation of the physical process controlling beach changes adjacent to nearshore dredge pits","interactions":[],"lastModifiedDate":"2012-03-12T17:21:23","indexId":"70032846","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1262,"text":"Coastal Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Evaluation of the physical process controlling beach changes adjacent to nearshore dredge pits","docAbstract":"Numerical modeling of a beach nourishment project is conducted to enable a detailed evaluation of the processes associated with the effects of nearshore dredge pits on nourishment evolution and formation of erosion hot spots. A process-based numerical model, Delft3D, is used for this purpose. The analysis is based on the modification of existing bathymetry to simulate \"what if\" scenarios with/without the bathymetric features of interest. Borrow pits dredged about 30??years ago to provide sand for the nourishment project have a significant influence on project performance and formation of erosional hot spots. It was found that the main processes controlling beach response to these offshore bathymetric features were feedbacks between wave forces (roller force or alongshore component of the radiation stress), pressure gradients due to differentials in wave set-up/set-down and bed shear stress. Modeling results also indicated that backfilling of selected borrow sites showed a net positive effect within the beach fill limits and caused a reduction in the magnitude of hot spot erosion. ?? 2008 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Coastal Engineering","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.coastaleng.2008.06.008","issn":"03783","usgsCitation":"Benedet, L., and List, J.H., 2008, Evaluation of the physical process controlling beach changes adjacent to nearshore dredge pits: Coastal Engineering, v. 55, no. 12, p. 1224-1236, https://doi.org/10.1016/j.coastaleng.2008.06.008.","startPage":"1224","endPage":"1236","numberOfPages":"13","costCenters":[],"links":[{"id":214021,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.coastaleng.2008.06.008"},{"id":241707,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"55","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0ceee4b0c8380cd52d5a","contributors":{"authors":[{"text":"Benedet, L.","contributorId":100624,"corporation":false,"usgs":true,"family":"Benedet","given":"L.","affiliations":[],"preferred":false,"id":438209,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"List, J. H.","contributorId":70406,"corporation":false,"usgs":true,"family":"List","given":"J.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":438208,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70032844,"text":"70032844 - 2008 - Water-quality monitoring and process understanding in support of environmental policy and management","interactions":[],"lastModifiedDate":"2012-03-12T17:21:23","indexId":"70032844","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Water-quality monitoring and process understanding in support of environmental policy and management","docAbstract":"The quantity and quality of freshwater at any point on the landscape reflect the combined effects of many processes operating along hydrological pathways within a drainage basin/watershed/catchment. Primary drivers for the availability of water are landscape changes and patterns, and the processes affecting the timing, magnitude, and intensity of precipitation, including global climate change. The degradation of air, land, and water in one part of a drainage basin can have negative effects on users downstream; the time and space scales of the effects are determined by the residence time along the various hydrological pathways. Hydrology affects transport, deposition, and recycling of inorganic materials and sediment. These components affect biota and associated ecosystem processes, which rely on sustainable flows throughout a drainage basin. Human activities on all spatial scales affect both water quantity and quality, and some human activities can have a disproportionate effect on an entire drainage basin. Aquatic systems have been continuously modified by agriculture, through land-use change, irrigation and navigation, disposal of urban, mining, and industrial wastes, and engineering modifications to the environment. Interdisciplinary integrated basin studies within the last several decades have provided a more comprehensive understanding of the linkages among air, land, and water resources. This understanding, coupled with environmental monitoring, has evolved a more multidisciplinary integrated approach to resource management, particularly within drainage basins.","largerWorkTitle":"IAHS-AISH Publication","conferenceTitle":"River Basins - From Hydrological Science to Water Management","conferenceLocation":"Paris","language":"English","issn":"01447","isbn":"9781901502695","usgsCitation":"Peters, N., 2008, Water-quality monitoring and process understanding in support of environmental policy and management, <i>in</i> IAHS-AISH Publication, no. 323, Paris, p. 93-109.","startPage":"93","endPage":"109","numberOfPages":"17","costCenters":[],"links":[{"id":241672,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"323","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bce33e4b08c986b32e29e","contributors":{"authors":[{"text":"Peters, N.E.","contributorId":33332,"corporation":false,"usgs":true,"family":"Peters","given":"N.E.","email":"","affiliations":[],"preferred":false,"id":438203,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70032716,"text":"70032716 - 2008 - Degradation of Victoria crater, Mars","interactions":[],"lastModifiedDate":"2018-12-05T16:10:45","indexId":"70032716","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2317,"text":"Journal of Geophysical Research E: Planets","active":true,"publicationSubtype":{"id":10}},"title":"Degradation of Victoria crater, Mars","docAbstract":"<p><span>The ∼750 m diameter and ∼75 m deep Victoria crater in Meridiani Planum, Mars, is a degraded primary impact structure retaining a ∼5 m raised rim consisting of 1–2 m of uplifted rocks overlain by ∼3 m of ejecta at the rim crest. The rim is 120–220 m wide and is surrounded by a dark annulus reaching an average of 590 m beyond the raised rim. Comparison between observed morphology and that expected for pristine craters 500–750 m across indicates that the original, pristine crater was close to 600 m in diameter. Hence, the crater has been erosionally widened by ∼150 m and infilled by ∼50 m of sediments. Eolian processes are responsible for most crater modification, but lesser mass wasting or gully activity contributions cannot be ruled out. Erosion by prevailing winds is most significant along the exposed rim and upper walls and accounts for ∼50 m widening across a WNW–ESE diameter. The volume of material eroded from the crater walls and rim is ∼20% less than the volume of sediments partially filling the crater, indicating eolian infilling from sources outside the crater over time. The annulus formed when ∼1 m deflation of the ejecta created a lag of more resistant hematite spherules that trapped &lt;10–20 cm of darker, regional basaltic sands. Greater relief along the rim enabled meters of erosion. Comparison between Victoria and regional craters leads to definition of a crater degradation sequence dominated by eolian erosion and infilling over time.</span></p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research E: Planets","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington, D.C.","doi":"10.1029/2008JE003155","issn":"01480","usgsCitation":"Grant, J.A., Wilson, S., Cohen, B.A., Golombek, M.P., Geissler, P.E., Sullivan, R.J., Kirk, R.L., and Parker, T.J., 2008, Degradation of Victoria crater, Mars: Journal of Geophysical Research E: Planets, v. 113, no. E11, 16 p., https://doi.org/10.1029/2008JE003155.","productDescription":"16 p.","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":476675,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2008je003155","text":"Publisher Index Page"},{"id":241358,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Mars; Victoria crater","volume":"113","issue":"E11","noUsgsAuthors":false,"publicationDate":"2008-11-18","publicationStatus":"PW","scienceBaseUri":"5059fe55e4b0c8380cd4ec9a","contributors":{"authors":[{"text":"Grant, John A.","contributorId":35230,"corporation":false,"usgs":true,"family":"Grant","given":"John","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":437606,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilson, Sharon A.","contributorId":211099,"corporation":false,"usgs":false,"family":"Wilson","given":"Sharon A.","affiliations":[{"id":24731,"text":"Center for Earth and Planetary Studies, National Air and Space Museum, Smithsonian Institution","active":true,"usgs":false}],"preferred":false,"id":437605,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cohen, Barbara A.","contributorId":211100,"corporation":false,"usgs":false,"family":"Cohen","given":"Barbara","email":"","middleInitial":"A.","affiliations":[{"id":16239,"text":"NASA Marshall Space Flight Center","active":true,"usgs":false}],"preferred":false,"id":437608,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Golombek, Matthew P.","contributorId":175450,"corporation":false,"usgs":false,"family":"Golombek","given":"Matthew","email":"","middleInitial":"P.","affiliations":[{"id":7023,"text":"Jet Propulsion Laboratory, California Institute of Technology","active":true,"usgs":false}],"preferred":false,"id":437609,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Geissler, Paul E. pgeissler@usgs.gov","contributorId":2811,"corporation":false,"usgs":true,"family":"Geissler","given":"Paul","email":"pgeissler@usgs.gov","middleInitial":"E.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":437610,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Sullivan, Robert J.","contributorId":105960,"corporation":false,"usgs":true,"family":"Sullivan","given":"Robert","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":437604,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Kirk, Randolph L. 0000-0003-0842-9226 rkirk@usgs.gov","orcid":"https://orcid.org/0000-0003-0842-9226","contributorId":2765,"corporation":false,"usgs":true,"family":"Kirk","given":"Randolph","email":"rkirk@usgs.gov","middleInitial":"L.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":437611,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Parker, Timothy J.","contributorId":33168,"corporation":false,"usgs":true,"family":"Parker","given":"Timothy","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":437607,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70032714,"text":"70032714 - 2008 - Land use and the structure of western US stream invertebrate assemblages: Predictive models and ecological traits","interactions":[],"lastModifiedDate":"2017-10-25T14:17:51","indexId":"70032714","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2564,"text":"Journal of the North American Benthological Society","onlineIssn":"1937-237X","printIssn":"0887-3593","active":true,"publicationSubtype":{"id":10}},"title":"Land use and the structure of western US stream invertebrate assemblages: Predictive models and ecological traits","docAbstract":"Inferences drawn from regional bioassessments could be strengthened by integrating data from different monitoring programs. We combined data from the US Geological Survey National Water-Quality Assessment (NAWQA) program and the US Environmental Protection Agency Wadeable Streams Assessment (WSA) to expand the scope of an existing River InVertebrate Prediction and Classification System (RIVPACS)-type predictive model and to assess the biological condition of streams across the western US in a variety of landuse classes. We used model-derived estimates of taxon-specific probabilities of capture and observed taxon occurrences to identify taxa that were absent from sites where they were predicted to occur (decreasers) and taxa that were present at sites where they were not predicted to occur (increasers). Integration of 87 NAWQA reference sites increased the scope of the existing WSA predictive model to include larger streams and later season sampling. Biological condition at 336 NAWQA test sites was significantly (p < 0.001) associated with basin land use and tended to be lower in basins with intensive landuse modification (e.g., mixed, urban, and agricultural basins) than in basins with relatively undisturbed land use (e.g., forested basins). Of the 437 taxa observed among reference and test sites, 180 (41%) were increasers or decreasers. In general, decreasers had a different set of ecological traits (functional traits or tolerance values) than did increasers. We could predict whether a taxon was a decreaser or an increaser based on just a few traits, e.g., desiccation resistance, timing of larval development, habit, and thermal preference, but we were unable to predict the type of basin land use from trait states present in invertebrate assemblages. Refined characterization of traits might be required before bioassessment data can be used routinely to aid in the diagnoses of the causes of biological impairment. ?? 2008 by The North American Benthological Society.","language":"English","publisher":"University of Chicago Press","doi":"10.1899/07-176.1","issn":"08873","usgsCitation":"Carlisle, D., and Hawkins, C., 2008, Land use and the structure of western US stream invertebrate assemblages: Predictive models and ecological traits: Journal of the North American Benthological Society, v. 27, no. 4, p. 986-999, https://doi.org/10.1899/07-176.1.","productDescription":"14 p.","startPage":"986","endPage":"999","ipdsId":"IP-004069","costCenters":[],"links":[{"id":241324,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arizona, California, Colorado, Idaho, Montana, New Mexico, Nevada, Oregon,  Utah, Washington, Wyoming","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"MultiPolygon\",\"coordinates\":[[[[-104.053249,41.001406],[-102.124972,41.002338],[-102.051292,40.749591],[-102.04192,37.035083],[-102.979613,36.998549],[-103.002247,36.911587],[-103.064423,32.000518],[-106.565142,32.000736],[-106.577244,31.810406],[-106.750547,31.783706],[-108.208394,31.783599],[-108.208573,31.333395],[-111.000643,31.332177],[-114.813613,32.494277],[-114.722746,32.713071],[-117.118868,32.534706],[-117.50565,33.334063],[-118.088896,33.729817],[-118.428407,33.774715],[-118.519514,34.027509],[-119.159554,34.119653],[-119.616862,34.420995],[-120.441975,34.451512],[-120.608355,34.556656],[-120.644311,35.139616],[-120.873046,35.225688],[-120.884757,35.430196],[-121.851967,36.277831],[-121.932508,36.559935],[-121.788278,36.803994],[-121.880167,36.950151],[-122.140578,36.97495],[-122.419113,37.24147],[-122.511983,37.77113],[-122.425942,37.810979],[-122.168449,37.504143],[-122.144396,37.581866],[-122.385908,37.908136],[-122.301804,38.105142],[-122.484411,38.11496],[-122.492474,37.82484],[-122.972378,38.020247],[-123.103706,38.415541],[-123.725367,38.917438],[-123.851714,39.832041],[-124.373599,40.392923],[-124.063076,41.439579],[-124.536073,42.814175],[-124.150267,43.91085],[-123.962887,45.280218],[-123.996766,46.20399],[-123.548194,46.248245],[-124.029924,46.308312],[-124.06842,46.601397],[-123.97083,46.47537],[-123.84621,46.716795],[-124.022413,46.708973],[-124.108078,46.836388],[-123.86018,46.948556],[-124.138035,46.970959],[-124.425195,47.738434],[-124.672427,47.964414],[-124.727022,48.371101],[-123.981032,48.164761],[-122.748911,48.117026],[-122.637425,47.889945],[-123.15598,47.355745],[-122.527593,47.905882],[-122.578211,47.254804],[-122.725738,47.33047],[-122.691771,47.141958],[-122.796646,47.341654],[-122.863732,47.270221],[-122.67813,47.103866],[-122.364168,47.335953],[-122.429841,47.658919],[-122.230046,47.970917],[-122.425572,48.232887],[-122.358375,48.056133],[-122.512031,48.133931],[-122.424102,48.334346],[-122.689121,48.476849],[-122.425271,48.599522],[-122.796887,48.975026],[-104.048736,48.999877],[-104.053249,41.001406]]],[[[-119.789798,34.05726],[-119.5667,34.053452],[-119.795938,33.962929],[-119.916216,34.058351],[-119.789798,34.05726]]],[[[-118.524531,32.895488],[-118.573522,32.969183],[-118.369984,32.839273],[-118.524531,32.895488]]],[[[-118.500212,33.449592],[-118.32446,33.348782],[-118.593969,33.467198],[-118.500212,33.449592]]],[[[-122.519535,48.288314],[-122.66921,48.240614],[-122.400628,48.036563],[-122.419274,47.912125],[-122.744612,48.20965],[-122.664928,48.374823],[-122.519535,48.288314]]],[[[-122.800217,48.60169],[-122.883759,48.418793],[-123.173061,48.579086],[-122.949116,48.693398],[-122.743049,48.661991],[-122.800217,48.60169]]]]},\"properties\":{\"name\":\"Arizona\",\"nation\":\"USA  \"}}]}","volume":"27","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4383e4b0c8380cd663c6","contributors":{"authors":[{"text":"Carlisle, D.M.","contributorId":81059,"corporation":false,"usgs":true,"family":"Carlisle","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":437601,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hawkins, C.P.","contributorId":64454,"corporation":false,"usgs":true,"family":"Hawkins","given":"C.P.","email":"","affiliations":[],"preferred":false,"id":437600,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70030261,"text":"70030261 - 2008 - Simulated natural hydrologic regime of an intermountain playa conservation site","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70030261","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3750,"text":"Wetlands","onlineIssn":"1943-6246","printIssn":"0277-5212","active":true,"publicationSubtype":{"id":10}},"title":"Simulated natural hydrologic regime of an intermountain playa conservation site","docAbstract":"An intermountain playa wetland preserve in Colorado's San Luis Valley was studied to assess how its current hydrologic function compares to its natural hydrologic regime. Current hydrologic conditions were quantified, and on-site effects of off-site water use were assessed. A water-budget model was developed to simulate an unaltered (i.e., natural) hydrologic regime, and simulated natural conditions were compared to observed conditions. From 1998-2002, observed stream inflows accounted for ??? 80% of total annual water inputs. No ground water discharged to the wetland. Evapotranspiration (ET) accounted for ??? 69% of total annual water loss. Simulated natural conditions differed substantially from current altered conditions with respect to depth, variability, and frequency of flooding. During 1998-2002, observed monthly mean surface-water depth was 65% lower than under simulated natural conditions. Observed monthly variability in water depth range from 129% greater (May) to 100% less (September and October) than simulated. As observed, the wetland dried completely (i.e., was ephemeral) in all years; as simulated, the wetland was ephemeral in two of five years. For the period 1915-2002, the simulated wetland was inundated continuously for as long as 16 years and nine months. The large differences in observed and simulated surface-water dynamics resulted from differences between altered and simulated unaltered stream inflows. The maximum and minimum annual total stream inflows observed from 1998-2005 were 3.1 ?? 106 m3 and 0 m3, respectively, versus 15.5 ?? 106 m3 and 3.2 ?? 106 m3 under simulated natural conditions from 1915-2002. The maximum simulated inflow was 484% greater than observed. These data indicate that the current hydrologic regime of this intermountain playa differs significantly from its natural hydrologic regime, which has important implications for planning and assessing conservation success. ?? 2008, The Society of Wetland Scientists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wetlands","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1672/07-76.1","issn":"02775","usgsCitation":"Sanderson, J., Kotliar, N., Steingraeber, D., and Browne, C., 2008, Simulated natural hydrologic regime of an intermountain playa conservation site: Wetlands, v. 28, no. 2, p. 363-377, https://doi.org/10.1672/07-76.1.","startPage":"363","endPage":"377","numberOfPages":"15","costCenters":[],"links":[{"id":212033,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1672/07-76.1"},{"id":239437,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"28","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8fb7e4b08c986b3190cb","contributors":{"authors":[{"text":"Sanderson, J.S.","contributorId":13424,"corporation":false,"usgs":true,"family":"Sanderson","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":426364,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kotliar, N.B.","contributorId":7649,"corporation":false,"usgs":true,"family":"Kotliar","given":"N.B.","email":"","affiliations":[],"preferred":false,"id":426363,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Steingraeber, D.A.","contributorId":95269,"corporation":false,"usgs":true,"family":"Steingraeber","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":426366,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Browne, C.","contributorId":30035,"corporation":false,"usgs":true,"family":"Browne","given":"C.","email":"","affiliations":[],"preferred":false,"id":426365,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030262,"text":"70030262 - 2008 - The effects of water-level fluctuations on vegetation in a Lake Huron wetland","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70030262","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3750,"text":"Wetlands","onlineIssn":"1943-6246","printIssn":"0277-5212","active":true,"publicationSubtype":{"id":10}},"title":"The effects of water-level fluctuations on vegetation in a Lake Huron wetland","docAbstract":"The diversity and resultant habitat value of wetland plant communities in the Laurentian Great Lake's are dependent on water-level fluctuations of varying frequency and amplitude. Conceptual models have described the response of vegetation to alternating high and low lake levels, but few quantitative studies have documented the changes that occur. In response to recent concerns over shoreline management activities during an ongoing period of low lake levels in lakes Superior, Michigan, and Huron that began in 1999, we analyzed a quantitative data set from Saginaw Bay of Lake Huron collected from 1988 to 1993 during a previous lake-level decline to provide the needed information on vegetation responses. Transects were established that followed topographic contours with water-level histories that differed across a six-year period, ranging from barely flooded to dewatered for varying numbers of years to never dewatered. Percent cover data from randomly placed quadrats along those transects were analyzed to assess floristic changes over time, document development of distinct plant assemblages, and relate the results to lake-level changes. Ordinations showed that plant assemblages sorted out by transects that reflect differing water-level histories. Distinction of assemblages was maintained for at least three years, although the composition and positioning of those assemblages changed as lake levels changed. We present a model that uses orthogonal axes to plot transects by years out of water against distance above water and sorted those transects in a manner that matched ordination results. The model suggests that vegetation response following dewatering is dependent on both position along the water level/soil moisture gradient and length of time since dewatering. This study provided quantitative evidence that lake-level fluctuations drive vegetative change in Great Lakes wetlands, and it may assist in making decisions regarding shoreline management in areas that historically supported wetlands. ?? 2008, The Society of Wetland Scientists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wetlands","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1672/07-129.1","issn":"02775","usgsCitation":"Wilcox, D., and Nichols, S.J., 2008, The effects of water-level fluctuations on vegetation in a Lake Huron wetland: Wetlands, v. 28, no. 2, p. 487-501, https://doi.org/10.1672/07-129.1.","startPage":"487","endPage":"501","numberOfPages":"15","costCenters":[],"links":[{"id":476752,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/20.500.12648/2271","text":"External Repository"},{"id":212061,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1672/07-129.1"},{"id":239473,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"28","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505babace4b08c986b322fcc","contributors":{"authors":[{"text":"Wilcox, D.A.","contributorId":55382,"corporation":false,"usgs":true,"family":"Wilcox","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":426367,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nichols, S. J.","contributorId":63770,"corporation":false,"usgs":true,"family":"Nichols","given":"S.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":426368,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70030263,"text":"70030263 - 2008 - The Ellsworth terrane, coastal Maine: Geochronology, geochemistry, and Nd-Pb isotopic composition - Implications for the rifting of Ganderia","interactions":[],"lastModifiedDate":"2012-03-12T17:21:11","indexId":"70030263","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","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":"The Ellsworth terrane, coastal Maine: Geochronology, geochemistry, and Nd-Pb isotopic composition - Implications for the rifting of Ganderia","docAbstract":"The Ellsworth terrane is one of a number of fault-bounded blocks that occur along the eastern margin of Ganderia, the western-most of the peri-Gondwanan domains in the northern Appalachians that were accreted to Laurentia in the Paleozoic. Geologic relations, detrital zircon ages, and basalt geochemistry suggest that the Ellsworth terrane is part of Ganderia and not an exotic terrane. In the Penobscot Bay area of coastal Maine, the Ellsworth terrane is dominantly composed of bimodal basalt-rhyolite volcanic sequences of the Ellsworth Schist and unconformably overlying Castine Volcanics. We use new U-Pb zircon geochronology, geochemistry, and Nd and Pb isotopes for these volcanic sequences to constrain the petrogenetic history and paleotectonic setting of the Ellsworth terrane and its relationship with Ganderia. U-Pb zircon geochronology for rhyolites indicates that both the Ellsworth Schist (508.6 ?? 0.8 Ma) and overlying Castine Volcanics (503.5 ?? 2.5 Ma) are Middle Cambrian in age. Two tholefitic basalt types are recognized. Type Tb-1 basalt, present as pillowed and massive lava flows and as sills in both units, has depleted La and Ce ([La/Nd]N = 0.53-0.87) values, flat heavy rare earth element (REE) values, and no positive Th or negative Ta anomalies on primitive mantle-normalized diagrams. In contrast, type Th-2 basalt, present only in the Castine Volcanics, has stightly enriched LREE ([La/Yb]N = 1.42-2.92) values and no Th or Th anomalies. Both basalt types have strongly positive ??Nd (500) values (Th-1 = +7.9-+8.6; Th-2 = +5.6-+7.0) and relatively enriched Pb isotopic compositions (206Ph/204Pb = 18.037-19.784; 207/204Pb = 15.531-15.660; 2088Pb/204Pb = 37.810-38.817). The basalts have compositions transitional between recent normal and enriched mid-ocean-ridge basalt, and they were probably derived by partial melting of compositionatly heterogeneous asthenosphenc mantle. Two types of rhyolite also are present. Type R-1 rhyolite, which mostly occurs as tuffs interlayered with basalt in the Ellsworth Schist, is calc-alkaline and characterized by relatively low REE, Zr, and Hf contents, enriched LREE ([La/Yb]N ???3-6), positive Th and negative Th anomalies, ??Nd (500) values near zero (+0.5 to -0.9), and relatively unradiogenic Ph isotope values (206Pb/204Pb = 18.845; 207Pb/ 204Pb = 15.625; 208Pb/204Pb = 38.626). The data suggest that R-1 rhyolite magma was Likely derived by mixing of basalt with melts from a relatively depleted crustal source. Type R-2 rhyolite, which mostly occurs as lava flows and domes in the Castine volcanics, is tholeiitic and characterized by enriched REE with flat patterns ([La/Yb]N = 1-2.5), moderate negative Eu anomalies (Eu/Eu* = 0-34.5), enriched Th, small negative Th anomalies, and ??Nd (500) (+5.8-+7.5) and Ph isotope (206Pb/204Pb = 19.175-19.619; 207Pb/204Pb = 15.605--15.649; 208Pb/204Pb = 38.834-38.851) values that overlap those of the tholeiitic basalts. The data suggest that R-2 rhyolite magma was derived by the partial melting of hydrothermally altered basalt with the addition of a small amount of an enriched component, probably R-1 rhyolite. The geololic, geochemicai, and isotopic characteristics of the bimodal volcanic sequences strongly suggest that the Ellsworth terrane did not evolve as an extensional back-arc basin behind an active arc, but rather it evolved as a proto-oceanic rift petrogenetically similar to Cenozoic rifts like the Gulf of California-Salton mrough and Red Sea-Gulf of Aden rift systems. Such a setting is supported by the presence of serpentinized mantle and zinc-copper-rich massive sulfide deposits in the Ellsworth terrane. We conclude that the Ellsworth terrane developed as a Mid","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geological Society of America Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/B26336.1","issn":"00167","usgsCitation":"Schulz, K.J., Stewart, D.B., Tucker, R.D., Pollock, J., and Ayuso, R., 2008, The Ellsworth terrane, coastal Maine: Geochronology, geochemistry, and Nd-Pb isotopic composition - Implications for the rifting of Ganderia: Geological Society of America Bulletin, v. 120, no. 9-10, p. 1134-1158, https://doi.org/10.1130/B26336.1.","startPage":"1134","endPage":"1158","numberOfPages":"25","costCenters":[],"links":[{"id":239506,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212088,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/B26336.1"}],"volume":"120","issue":"9-10","noUsgsAuthors":false,"publicationDate":"2008-09-04","publicationStatus":"PW","scienceBaseUri":"505ba719e4b08c986b321367","contributors":{"authors":[{"text":"Schulz, K. J.","contributorId":79131,"corporation":false,"usgs":true,"family":"Schulz","given":"K.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":426372,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stewart, D. B.","contributorId":41809,"corporation":false,"usgs":true,"family":"Stewart","given":"D.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":426370,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tucker, R. D.","contributorId":43409,"corporation":false,"usgs":false,"family":"Tucker","given":"R.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":426371,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pollock, J.C.","contributorId":107496,"corporation":false,"usgs":true,"family":"Pollock","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":426373,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ayuso, R. A. 0000-0002-8496-9534","orcid":"https://orcid.org/0000-0002-8496-9534","contributorId":27079,"corporation":false,"usgs":true,"family":"Ayuso","given":"R. A.","affiliations":[],"preferred":false,"id":426369,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70031762,"text":"70031762 - 2008 - Modeling multi-layer effects in passive microwave remote sensing of dry snow using Dense Media Radiative Transfer Theory (DMRT) based on quasicrystalline approximation","interactions":[],"lastModifiedDate":"2012-03-12T17:21:11","indexId":"70031762","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Modeling multi-layer effects in passive microwave remote sensing of dry snow using Dense Media Radiative Transfer Theory (DMRT) based on quasicrystalline approximation","docAbstract":"The Dense Media Radiative Transfer theory (DMRT) of Quasicrystalline Approximation of Mie scattering by sticky particles is used to study the multiple scattering effects in layered snow in microwave remote sensing. Results are illustrated for various snow profile characteristics. Polarization differences and frequency dependences of multilayer snow model are significantly different from that of the single-layer snow model. Comparisons are also made with CLPX data using snow parameters as given by the VIC model. ?? 2007 IEEE.","largerWorkTitle":"International Geoscience and Remote Sensing Symposium (IGARSS)","conferenceTitle":"2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007","conferenceDate":"23 June 2007 through 28 June 2007","conferenceLocation":"Barcelona","language":"English","doi":"10.1109/IGARSS.2007.4423024","isbn":"1424412129; 9781424412129","usgsCitation":"Liang, D., Xu, X., Tsang, L., Andreadis, K., and Josberger, E., 2008, Modeling multi-layer effects in passive microwave remote sensing of dry snow using Dense Media Radiative Transfer Theory (DMRT) based on quasicrystalline approximation, <i>in</i> International Geoscience and Remote Sensing Symposium (IGARSS), Barcelona, 23 June 2007 through 28 June 2007, p. 1215-1218, https://doi.org/10.1109/IGARSS.2007.4423024.","startPage":"1215","endPage":"1218","numberOfPages":"4","costCenters":[],"links":[{"id":212518,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1109/IGARSS.2007.4423024"},{"id":240013,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5c0de4b0c8380cd6f9c3","contributors":{"authors":[{"text":"Liang, D.","contributorId":66483,"corporation":false,"usgs":true,"family":"Liang","given":"D.","email":"","affiliations":[],"preferred":false,"id":433017,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Xu, X.","contributorId":55166,"corporation":false,"usgs":true,"family":"Xu","given":"X.","email":"","affiliations":[],"preferred":false,"id":433015,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tsang, L.","contributorId":43950,"corporation":false,"usgs":true,"family":"Tsang","given":"L.","email":"","affiliations":[],"preferred":false,"id":433014,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Andreadis, K.M.","contributorId":8294,"corporation":false,"usgs":true,"family":"Andreadis","given":"K.M.","email":"","affiliations":[],"preferred":false,"id":433013,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Josberger, E.G.","contributorId":61161,"corporation":false,"usgs":true,"family":"Josberger","given":"E.G.","email":"","affiliations":[],"preferred":false,"id":433016,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70010013,"text":"70010013 - 2008 - Radiometric calibration stability and inter-calibration of solar-band instruments in orbit using the moon","interactions":[],"lastModifiedDate":"2012-03-12T17:18:18","indexId":"70010013","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Radiometric calibration stability and inter-calibration of solar-band instruments in orbit using the moon","docAbstract":"With the increased emphasis on monitoring the Earth's climate from space, more stringent calibration requirements are being placed on the data products from remote sensing satellite instruments. Among these are stability over decade-length time scales and consistency across sensors and platforms. For radiometer instruments in the solar reflectance wavelength range (visible to shortwave infrared), maintaining calibration on orbit is difficult due to the lack of absolute radiometric standards suitable for flight use. The Moon presents a luminous source that can be viewed by all instruments in Earth orbit. Considered as a solar diffuser, the lunar surface is exceedingly stable. The chief difficulty with using the Moon is the strong variations in the Moon's brightness with illumination and viewing geometry. This mandates the use of a photometric model to compare lunar observations, either over time by the same instrument or between instruments. The U.S. Geological Survey in Flagstaff, Arizona, under NASA sponsorship, has developed a model for the lunar spectral irradiance that explicitly accounts for the effects of phase, the lunar librations, and the lunar surface reflectance properties. The model predicts variations in the Moon's brightness with precision ???1% over a continuous phase range from eclipse to the quarter lunar phases. Given a time series of Moon observations taken by an instrument, the geometric prediction capability of the lunar irradiance model enables sensor calibration stability with sub-percent per year precision. Cross-calibration of instruments with similar passbands can be achieved with precision comparable to the model precision. Although the Moon observations used for intercomparison can be widely separated in phase angle and/or time, SeaWiFS and MODIS have acquired lunar views closely spaced in time. These data provide an example to assess inter-calibration biases between these two instruments.","largerWorkTitle":"Proceedings of SPIE - The International Society for Optical Engineering","conferenceTitle":"Earth Observing Systems XIII","conferenceDate":"11 August 2008 through 13 August 2008","conferenceLocation":"San Diego, CA","language":"English","doi":"10.1117/12.795227","issn":"0277786X","isbn":"9780819473011","usgsCitation":"Stone, T., 2008, Radiometric calibration stability and inter-calibration of solar-band instruments in orbit using the moon, <i>in</i> Proceedings of SPIE - The International Society for Optical Engineering, v. 7081, San Diego, CA, 11 August 2008 through 13 August 2008, https://doi.org/10.1117/12.795227.","costCenters":[],"links":[{"id":204920,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1117/12.795227"},{"id":219123,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"7081","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a940de4b0c8380cd81190","contributors":{"authors":[{"text":"Stone, T.C.","contributorId":74874,"corporation":false,"usgs":true,"family":"Stone","given":"T.C.","email":"","affiliations":[],"preferred":false,"id":357676,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70033524,"text":"70033524 - 2008 - Quaternary geology and sedimentary processes in the vicinity of Six Mile Reef, eastern Long Island Sound","interactions":[],"lastModifiedDate":"2017-09-14T14:50:30","indexId":"70033524","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2220,"text":"Journal of Coastal Research","active":true,"publicationSubtype":{"id":10}},"title":"Quaternary geology and sedimentary processes in the vicinity of Six Mile Reef, eastern Long Island Sound","docAbstract":"Six Mile Reef, a sandy, 22-m-high shoal trending east-west and located about 7.8 km off the Connecticut coast, has a core of postglacial marine deltaic deposits mantled by tidally reworked modern sediments. Sedimentary environments off the eastern end of the shoal are characterized by processes associated with long-term erosion or nondeposition, a mobile-sediment-limited seafloor armored by gravelly sand, and scattered elongate fields of barchanoid sand waves. The barchanoid waves reach amplitudes of 20 m, are concave westward, and occur in individual and coalesced forms that become progressively more complex westward. The seafloor on and adjacent to the shoal is characterized by processes associated with coarse bedload transport and covered primarily with asymmetrical transverse sand waves. The transverse waves exceed 8 m in amplitude, have slip faces predominantly oriented to the west and southwest, and have straight, slightly sinuous, and curved crests. Megaripples, which mimic the asymmetry of the sand waves, are commonly present on stoss slopes and in troughs; current ripples are ubiquitous. The amplitude and abundance of large bedforms decrease markedly westward of Six Mile Reef. The seabed there is covered with small, degraded ripples, reflecting lower-energy environments and processes associated with sorting and reworking of seafloor sediments. Megaripples and current ripples on the sand waves suggest that transport is active and that the bedforms are propagating under the present hydraulic regime. Net bedload sediment transport is primarily to the west, as evidenced by textural trends of surficial sediments, orientation of the barchanoid waves, and asymmetry of the transverse waves and of the scour marks around bedrock outcrops, boulders, and shipwrecks. One exception occurs at the western tip of the shoal, where sand-wave morphology indicates long-term eastward transport, suggesting that countercurrents in this area shape the shoal and are important to its maintenance.","language":"English","publisher":"BioOne","doi":"10.2112/06-0743.1","issn":"07490208","usgsCitation":"Poppe, L., Williams, S., Moser, M.S., Forfinski, N., Stewart, H., and Doran, E.F., 2008, Quaternary geology and sedimentary processes in the vicinity of Six Mile Reef, eastern Long Island Sound: Journal of Coastal Research, v. 24, no. 1, p. 255-266, https://doi.org/10.2112/06-0743.1.","productDescription":"12 p.","startPage":"255","endPage":"266","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":241820,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Long Island Sound","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -74.476318359375,\n              40.153686857794035\n            ],\n            [\n              -70.51025390625,\n              40.153686857794035\n            ],\n            [\n              -70.51025390625,\n              41.60722821271717\n            ],\n            [\n              -74.476318359375,\n              41.60722821271717\n            ],\n            [\n              -74.476318359375,\n              40.153686857794035\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"24","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a92bee4b0c8380cd80a13","contributors":{"authors":[{"text":"Poppe, L.J.","contributorId":72782,"corporation":false,"usgs":true,"family":"Poppe","given":"L.J.","affiliations":[],"preferred":false,"id":441263,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Williams, S.J.","contributorId":85203,"corporation":false,"usgs":true,"family":"Williams","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":441265,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Moser, M. S.","contributorId":98391,"corporation":false,"usgs":true,"family":"Moser","given":"M.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":441266,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Forfinski, N.A.","contributorId":13702,"corporation":false,"usgs":true,"family":"Forfinski","given":"N.A.","affiliations":[],"preferred":false,"id":441261,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Stewart, H.F.","contributorId":83620,"corporation":false,"usgs":true,"family":"Stewart","given":"H.F.","email":"","affiliations":[],"preferred":false,"id":441264,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Doran, E. F.","contributorId":31066,"corporation":false,"usgs":true,"family":"Doran","given":"E.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":441262,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70033343,"text":"70033343 - 2008 - Greenland ice sheet surface temperature, melt and mass loss: 2000-06","interactions":[],"lastModifiedDate":"2012-03-12T17:21:35","indexId":"70033343","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2328,"text":"Journal of Glaciology","active":true,"publicationSubtype":{"id":10}},"title":"Greenland ice sheet surface temperature, melt and mass loss: 2000-06","docAbstract":"A daily time series of 'clear-sky' surface temperature has been compiled of the Greenland ice sheet (GIS) using 1 km resolution moderate-resolution imaging spectroradiometer (MODIS) land-surface temperature (LST) maps from 2000 to 2006. We also used mass-concentration data from the Gravity Recovery and Climate Experiment (GRACE) to study mass change in relationship to surface melt from 2003 to 2006. The mean LST of the GIS increased during the study period by ???0.27??Ca-1. The increase was especially notable in the northern half of the ice sheet during the winter months. Melt-season length and timing were also studied in each of the six major drainage basins. Rapid (<15 days) and sustained mass loss below 2000 m elevation was triggered in 2004 and 2005 as recorded by GRACE when surface melt begins. Initiation of large-scale surface melt was followed rapidly by mass loss. This indicates that surface meltwater is flowing rapidly to the base of the ice sheet, causing acceleration of outlet glaciers, thus highlighting the metastability of parts of the GIS and the vulnerability of the ice sheet to air-temperature increases. If air temperatures continue to rise over Greenland, increased surface melt will play a large role in ice-sheet mass loss.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Glaciology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.3189/002214308784409170","issn":"00221430","usgsCitation":"Hall, D., Williams, R., Luthcke, S., and DiGirolamo, N., 2008, Greenland ice sheet surface temperature, melt and mass loss: 2000-06: Journal of Glaciology, v. 54, no. 184, p. 81-93, https://doi.org/10.3189/002214308784409170.","startPage":"81","endPage":"93","numberOfPages":"13","costCenters":[],"links":[{"id":476698,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3189/002214308784409170","text":"Publisher Index Page"},{"id":213350,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3189/002214308784409170"},{"id":240966,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"54","issue":"184","noUsgsAuthors":false,"publicationDate":"2017-09-08","publicationStatus":"PW","scienceBaseUri":"505a2a6de4b0c8380cd5b17d","contributors":{"authors":[{"text":"Hall, D.K.","contributorId":84506,"corporation":false,"usgs":true,"family":"Hall","given":"D.K.","email":"","affiliations":[],"preferred":false,"id":440421,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Williams, R.S. Jr.","contributorId":46102,"corporation":false,"usgs":true,"family":"Williams","given":"R.S.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":440420,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Luthcke, S.B.","contributorId":33125,"corporation":false,"usgs":true,"family":"Luthcke","given":"S.B.","email":"","affiliations":[],"preferred":false,"id":440419,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"DiGirolamo, N.E.","contributorId":105110,"corporation":false,"usgs":true,"family":"DiGirolamo","given":"N.E.","affiliations":[],"preferred":false,"id":440422,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70033342,"text":"70033342 - 2008 - Occurrence and fate of pesticides in four contrasting agricultural settings in the United States","interactions":[],"lastModifiedDate":"2021-05-28T15:30:17.246145","indexId":"70033342","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2262,"text":"Journal of Environmental Quality","active":true,"publicationSubtype":{"id":10}},"title":"Occurrence and fate of pesticides in four contrasting agricultural settings in the United States","docAbstract":"<p><span>Occurrence and fate of 45 pesticides and 40 pesticide degradates were investigated in four contrasting agricultural settings&mdash;in Maryland, Nebraska, California, and Washington. Primary crops included corn at all sites, soybeans in Maryland, orchards in California and Washington, and vineyards in Washington. Pesticides and pesticide degradates detected in water samples from all four areas were predominantly from two classes of herbicides&mdash;triazines and chloroacetanilides; insecticides and fungicides were not present in the shallow ground water. In most samples, pesticide degradates greatly exceeded the concentrations of parent pesticide. In samples from Nebraska, the parent pesticide atrazine [6-chloro-</span><i>N</i><span>-ethyl-</span><i>N</i><span>&prime;-(1-methylethyl)-1,3,5-triazine-2,4-diamine] was about the same concentration as the degradate, but in samples from Maryland and California atrazine concentrations were substantially smaller than its degradate. Simazine [6-chloro-</span><i>N,N&prime;</i><span>-diethyl-1,3,5-triazine-2,4-diamine], the second most detected triazine, was detected in ground water from Maryland, California, and Washington. Metolachlor [2-chloro-</span><i>N</i><span>-(2-ethyl-6-methylphenyl)-</span><i>N</i><span>-(2-methoxy-1-methylethyl)acetamide] rarely was detected without its degradates, and when they were detected in the same sample metolachlor always had smaller concentrations. The Root-Zone Water-Quality Model was used to examine the occurrence and fate of metolachlor at the Maryland site. Simulations accurately predicted which metolachlor degradate would be predominant in the unsaturated zone. In analyses of relations among redox indicators and pesticide variance, apparent age, concentrations of dissolved oxygen, and excess nitrogen gas (from denitrification) were important indicators of the presence and concentration of pesticides in these ground water systems.</span></p>","language":"English","publisher":"ACSESS","doi":"10.2134/jeq2007.0166","usgsCitation":"Steele, G.V., Johnson, H., Sandstrom, M.W., Capel, P., and Barbash, J., 2008, Occurrence and fate of pesticides in four contrasting agricultural settings in the United States: Journal of Environmental Quality, v. 37, no. 3, p. 1116-1132, https://doi.org/10.2134/jeq2007.0166.","productDescription":"17 p.","startPage":"1116","endPage":"1132","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true},{"id":452,"text":"National Water Quality Laboratory","active":true,"usgs":true},{"id":464,"text":"Nebraska Water Science Center","active":true,"usgs":true},{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true},{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"links":[{"id":240965,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California, Maryland, Nebraska, Washington","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -75.8880615234375,\n              37.93553306183642\n            ],\n            [\n              -75.35522460937499,\n              38.03078569382294\n            ],\n            [\n              -75.0421142578125,\n              38.25974980039479\n        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V.","contributorId":62543,"corporation":false,"usgs":true,"family":"Steele","given":"G.","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":440415,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Johnson, H.M. 0000-0002-7571-4994","orcid":"https://orcid.org/0000-0002-7571-4994","contributorId":75339,"corporation":false,"usgs":true,"family":"Johnson","given":"H.M.","affiliations":[],"preferred":false,"id":440417,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sandstrom, Mark W. 0000-0003-0006-5675 sandstro@usgs.gov","orcid":"https://orcid.org/0000-0003-0006-5675","contributorId":706,"corporation":false,"usgs":true,"family":"Sandstrom","given":"Mark","email":"sandstro@usgs.gov","middleInitial":"W.","affiliations":[{"id":5046,"text":"Branch of Analytical Serv (NWQL)","active":true,"usgs":true},{"id":503,"text":"Office of Water Quality","active":true,"usgs":true},{"id":452,"text":"National Water Quality Laboratory","active":true,"usgs":true},{"id":37464,"text":"WMA - Laboratory & Analytical Services Division","active":true,"usgs":true}],"preferred":true,"id":440414,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Capel, P. D. 0000-0003-1620-5185","orcid":"https://orcid.org/0000-0003-1620-5185","contributorId":95498,"corporation":false,"usgs":true,"family":"Capel","given":"P. D.","affiliations":[],"preferred":false,"id":440418,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Barbash, J.E.","contributorId":62783,"corporation":false,"usgs":true,"family":"Barbash","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":440416,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70033337,"text":"70033337 - 2008 - Wide-area estimates of stand structure and water use of tamarix spp. on the lower colorado river: Implications for restoration and water management projects","interactions":[],"lastModifiedDate":"2012-03-12T17:21:36","indexId":"70033337","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3271,"text":"Restoration Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Wide-area estimates of stand structure and water use of tamarix spp. on the lower colorado river: Implications for restoration and water management projects","docAbstract":"Tamarix spp. removal has been proposed to salvage water and allow native vegetation to recolonize western U.S. riparian corridors. We conducted wide-area studies on the Lower Colorado River to answer some of the scientific questions about Tamarix water use and the consequences of removal, combining ground surveys with remote sensing methods. Tamarix stands had moderate rates of evapotranspiration (ET), based on remote sensing estimates, averaging 1.1 m/yr, similar to rates determined for other locations on the river and other rivers. Leaf area index values were also moderate, and stands were relatively open, with areas of bare soil interspersed within stands. At three Tamarix sites in the Cibola National Wildlife Refuge, groundwater salinity at the site nearest to the river (200 m) was relatively low (circa 2,250 mg/L) and was within 3 m of the surface. However, 750 and 1,500 m from the river, the groundwater salinity was 5,000-10,000 mg/L due to removal of water by the Tamarix stands. Despite the high groundwater salinity, the sites away from the river did not have saline surface soils. Only 1% of the mean annual river flow is lost to Tamarix ET on the Lower Colorado River in the United States, and the opportunities for water salvage through Tamarix removal are constrained by its modest ET rates. A possible alternative to Tamarix removal is to intersperse native plants among the stands to improve the habitat value of the riparian zone. ?? 2008 Society for Ecological Restoration International.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Restoration Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1526-100X.2008.00356.x","issn":"10612971","usgsCitation":"Nagler, P., Glenn, E.P., Didan, K., Osterberg, J., Jordan, F., and Cunningham, J., 2008, Wide-area estimates of stand structure and water use of tamarix spp. on the lower colorado river: Implications for restoration and water management projects: Restoration Ecology, v. 16, no. 1, p. 136-145, https://doi.org/10.1111/j.1526-100X.2008.00356.x.","startPage":"136","endPage":"145","numberOfPages":"10","costCenters":[],"links":[{"id":213319,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1526-100X.2008.00356.x"},{"id":240932,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"16","issue":"1","noUsgsAuthors":false,"publicationDate":"2008-03-11","publicationStatus":"PW","scienceBaseUri":"505bd0ade4b08c986b32efc8","contributors":{"authors":[{"text":"Nagler, P.L. 0000-0003-0674-103X","orcid":"https://orcid.org/0000-0003-0674-103X","contributorId":29937,"corporation":false,"usgs":true,"family":"Nagler","given":"P.L.","affiliations":[],"preferred":false,"id":440394,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Glenn, E. P.","contributorId":24463,"corporation":false,"usgs":false,"family":"Glenn","given":"E.","middleInitial":"P.","affiliations":[],"preferred":false,"id":440392,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Didan, K.","contributorId":25356,"corporation":false,"usgs":true,"family":"Didan","given":"K.","affiliations":[],"preferred":false,"id":440393,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Osterberg, J.","contributorId":92500,"corporation":false,"usgs":true,"family":"Osterberg","given":"J.","email":"","affiliations":[],"preferred":false,"id":440397,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Jordan, F.","contributorId":80622,"corporation":false,"usgs":true,"family":"Jordan","given":"F.","affiliations":[],"preferred":false,"id":440396,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Cunningham, J.","contributorId":68540,"corporation":false,"usgs":true,"family":"Cunningham","given":"J.","email":"","affiliations":[],"preferred":false,"id":440395,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70031737,"text":"70031737 - 2008 - Population structure and genetic diversity of black redhorse (Moxostoma duquesnei) in a highly fragmented watershed","interactions":[],"lastModifiedDate":"2012-03-12T17:21:05","indexId":"70031737","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1324,"text":"Conservation Genetics","active":true,"publicationSubtype":{"id":10}},"title":"Population structure and genetic diversity of black redhorse (Moxostoma duquesnei) in a highly fragmented watershed","docAbstract":"Dams have the potential to affect population size and connectivity, reduce genetic diversity, and increase genetic differences among isolated riverine fish populations. Previous research has reported adverse effects on the distribution and demographics of black redhorse (Moxostoma duquesnei), a threatened fish species in Canada. However, effects on genetic diversity and population structure are unknown. We used microsatellite DNA markers to assess the number of genetic populations in the Grand River (Ontario) and to test whether dams have resulted in a loss of genetic diversity and increased genetic differentiation among populations. Three hundred and seventy-seven individuals from eight Grand River sites were genotyped at eight microsatellite loci. Measures of genetic diversity were moderately high and not significantly different among populations; strong evidence of recent population bottlenecks was not detected. Pairwise FST and exact tests identified weak (global FST = 0.011) but statistically significant population structure, although little population structuring was detected using either genetic distances or an individual-based clustering method. Neither geographic distance nor the number of intervening dams were correlated with pairwise differences among populations. Tests for regional equilibrium indicate that Grand River populations were either in equilibrium between gene flow and genetic drift or that gene flow is more influential than drift. While studies on other species have identified strong dam-related effects on genetic diversity and population structure, this study suggests that barrier permeability, river fragment length and the ecological characteristics of affected species can counterbalance dam-related effects. ?? 2007 Springer Science+Business Media B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Conservation Genetics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10592-007-9367-2","issn":"15660621","usgsCitation":"Reid, S., Wilson, C., Mandrak, N., and Carl, L., 2008, Population structure and genetic diversity of black redhorse (Moxostoma duquesnei) in a highly fragmented watershed: Conservation Genetics, v. 9, no. 3, p. 531-546, https://doi.org/10.1007/s10592-007-9367-2.","startPage":"531","endPage":"546","numberOfPages":"16","costCenters":[],"links":[{"id":240154,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212638,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10592-007-9367-2"}],"volume":"9","issue":"3","noUsgsAuthors":false,"publicationDate":"2007-07-07","publicationStatus":"PW","scienceBaseUri":"505a7d97e4b0c8380cd7a03b","contributors":{"authors":[{"text":"Reid, S.M.","contributorId":61550,"corporation":false,"usgs":true,"family":"Reid","given":"S.M.","email":"","affiliations":[],"preferred":false,"id":432916,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilson, C.C.","contributorId":102987,"corporation":false,"usgs":true,"family":"Wilson","given":"C.C.","email":"","affiliations":[],"preferred":false,"id":432918,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mandrak, N.E.","contributorId":79301,"corporation":false,"usgs":true,"family":"Mandrak","given":"N.E.","affiliations":[],"preferred":false,"id":432917,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Carl, L.M.","contributorId":22478,"corporation":false,"usgs":true,"family":"Carl","given":"L.M.","email":"","affiliations":[],"preferred":false,"id":432915,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70033335,"text":"70033335 - 2008 - Winter survival of Eurasian woodcock Scolopax rusticola in central Italy","interactions":[],"lastModifiedDate":"2012-03-12T17:21:36","indexId":"70033335","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3766,"text":"Wildlife Biology","active":true,"publicationSubtype":{"id":10}},"title":"Winter survival of Eurasian woodcock Scolopax rusticola in central Italy","docAbstract":"The Eurasian woodcock Scolopax rusticola is a popular game bird in much of Europe. However, little is known about its population dynamics. We estimated winter survival of woodcock in a protected area with no hunting in central Italy. We radio-tagged 68 woodcocks with battery-powered radio-transmitters during 2001-2005. Woodcocks were captured in fields at night from November through February and fitted with radios. Birds were classified on capture as juveniles or adults using plumage characteristics. Woodcocks were relocated daily through March of each year or until they died, disappeared from the study area, or until their radio failed. We constructed a set of eight competing models of daily survival for the period 1 December - 28 February. Estimates of survival were obtained using the program SURVIV and Akaike's Information Criteria. The best model suggested daily survival was a constant 0.9985 (95% CI = 0.9972-0.9998), corresponding to a survival rate of 0.88 (SE = 0.05) for the 90-day winter study period. Our estimate of juvenile survival is higher than previously reported, and may reflect the protected status of the study area. Our estimates of winter survival may be helpful in managing harvested woodcock populations as well as in conserving populations in an increasingly urbanised environment. ?? Wildlife Biology (2008).","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wildlife Biology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2981/0909-6396(2008)14[36:WSOEWS]2.0.CO;2","issn":"09096396","usgsCitation":"Aradis, A., Miller, M., Landucci, G., Ruda, P., Taddei, S., and Spina, F., 2008, Winter survival of Eurasian woodcock Scolopax rusticola in central Italy: Wildlife Biology, v. 14, no. 1, p. 36-43, https://doi.org/10.2981/0909-6396(2008)14[36:WSOEWS]2.0.CO;2.","startPage":"36","endPage":"43","numberOfPages":"8","costCenters":[],"links":[{"id":476746,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2981/0909-6396(2008)14[36:wsoews]2.0.co;2","text":"Publisher Index Page"},{"id":240903,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213291,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2981/0909-6396(2008)14[36:WSOEWS]2.0.CO;2"}],"volume":"14","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bd15de4b08c986b32f3af","contributors":{"authors":[{"text":"Aradis, A.","contributorId":93168,"corporation":false,"usgs":true,"family":"Aradis","given":"A.","affiliations":[],"preferred":false,"id":440389,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, M.W.","contributorId":57012,"corporation":false,"usgs":true,"family":"Miller","given":"M.W.","email":"","affiliations":[],"preferred":false,"id":440384,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Landucci, G.","contributorId":65588,"corporation":false,"usgs":true,"family":"Landucci","given":"G.","email":"","affiliations":[],"preferred":false,"id":440385,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ruda, P.","contributorId":82135,"corporation":false,"usgs":true,"family":"Ruda","given":"P.","email":"","affiliations":[],"preferred":false,"id":440387,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Taddei, S.","contributorId":66487,"corporation":false,"usgs":true,"family":"Taddei","given":"S.","email":"","affiliations":[],"preferred":false,"id":440386,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Spina, F.","contributorId":93167,"corporation":false,"usgs":true,"family":"Spina","given":"F.","email":"","affiliations":[],"preferred":false,"id":440388,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70033334,"text":"70033334 - 2008 - Relations between nutritional condition and survival of North American elk Cervus elaphus","interactions":[],"lastModifiedDate":"2012-03-12T17:21:36","indexId":"70033334","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3766,"text":"Wildlife Biology","active":true,"publicationSubtype":{"id":10}},"title":"Relations between nutritional condition and survival of North American elk Cervus elaphus","docAbstract":"We related annual and seasonal survival of four populations of elk Cervus elaphus in the Pacific Northwest, USA, to measures and indices of individual nutritional condition. Among populations, for all mortality (human and non-human causes) sources inclusive, annual survival of adult females was correlated with a rump body condition score (rs = 0.627, P = 0.071), and survival over spring-summer-autumn (SSA) was correlated with mean ingesta-free body fat (IFBF; rs = 0.567, P = 0.088) and rump body condition score (rBCS; rs = 0.615, P = 0.050). For non-human mortality sources only, survival through SSA was correlated with IFBF (rs = 0.567, P = 0.088) and rBCS (rs = 0.615, P = 0.050), and survival over winter was correlated with withers body condition score (rs = 0.677, P = 0.045). For human-caused mortality sources only, survival over SSA was correlated with rBCS (rs = 0.696, P = 0.036) and IFBF (rs = 0.696, P = 0.036). For individuals, logistic analysis found that individual likelihood of dying from all mortality sources inclusive was best predicted (??2 = 8.3, P = 0.004, ?? = -1.24) by longissimus dorsi (loin) muscle thickness, a measure of protein catabolism. For only non-human mortality sources, a model (??2 = 16.1, P = 0.0003) containing both loin muscle thickness (??2 = 5.7, P = 0.017, ??= -1.02) and percent ingesta-free body fat (??2 = 4.9, P = 0.027, ?? = -0.35) best predicted individual susceptibility to mortality. Odds ratios indicated that odds of dying increased approximately 3X for each centimeter of loin muscle catabolized and 1.4X for each percent less body fat. No condition indices at the individual level were related to survival from human-caused mortality sources. Our study populations were characterized by low-marginal condition (i.e. mean ingesta-free body fat levels of 5.9-12.3% for lactating cows in late autumn); this likely increased the prominence of measures of muscle catabolism relative to fat accretion in influencing individual elk survival. Elk populations throughout the Pacific Northwest likely show similar condition levels, and consequently individuals are predisposed to mortality to a much greater degree than under optimal foraging conditions. Management strategies which assume that nutritional condition affects vulnerability only at or near condition levels associated with ecological carrying capacity (i.e. near starvation mortality) may overestimate the impact of proximate mortality factors on adult female elk. ?? Wildlife Biology (2008).","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wildlife Biology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2981/0909-6396(2008)14[70:RBNCAS]2.0.CO;2","issn":"09096396","usgsCitation":"Bender, L.C., Cook, J., Cook, R., and Hall, P., 2008, Relations between nutritional condition and survival of North American elk Cervus elaphus: Wildlife Biology, v. 14, no. 1, p. 70-80, https://doi.org/10.2981/0909-6396(2008)14[70:RBNCAS]2.0.CO;2.","startPage":"70","endPage":"80","numberOfPages":"11","costCenters":[],"links":[{"id":476664,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2981/0909-6396(2008)14[70:rbncas]2.0.co;2","text":"Publisher Index Page"},{"id":240902,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213290,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2981/0909-6396(2008)14[70:RBNCAS]2.0.CO;2"}],"volume":"14","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e4a6fae4b0e8fec6cdc31b","contributors":{"authors":[{"text":"Bender, Louis C.","contributorId":72509,"corporation":false,"usgs":true,"family":"Bender","given":"Louis","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":440381,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cook, J.G.","contributorId":75885,"corporation":false,"usgs":true,"family":"Cook","given":"J.G.","email":"","affiliations":[],"preferred":false,"id":440382,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cook, R.C.","contributorId":88320,"corporation":false,"usgs":true,"family":"Cook","given":"R.C.","email":"","affiliations":[],"preferred":false,"id":440383,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hall, P.B.","contributorId":47155,"corporation":false,"usgs":true,"family":"Hall","given":"P.B.","email":"","affiliations":[],"preferred":false,"id":440380,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"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":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":70033327,"text":"70033327 - 2008 - Seasonal frost effects on the dynamic behavior of a twenty-story office building","interactions":[],"lastModifiedDate":"2012-03-12T17:21:37","indexId":"70033327","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1264,"text":"Cold Regions Science and Technology","active":true,"publicationSubtype":{"id":10}},"title":"Seasonal frost effects on the dynamic behavior of a twenty-story office building","docAbstract":"Studies have shown that seasonal frost can significantly affect the seismic behavior of a bridge foundation system in cold regions. However, little information could be found regarding seasonal frost effects on the dynamic behavior of buildings. Based on the analysis of building vibration data recorded by a permanent strong-motion instrumentation system, the objective of this paper is to show that seasonal frost can impact the building dynamic behavior and the magnitude of impact may be different for different structures. Ambient noise and seismic data recorded on a twenty-story steel-frame building have been analyzed to examine the building dynamic characteristics in relationship to the seasonal frost and other variables including ground shaking intensity. Subsequently, Finite Element modeling of the foundation-soil system and the building superstructure was conducted to verify the seasonal frost effects. The Finite Element modeling was later extended to a reinforced-concrete (RC) type building assumed to exist at a similar site as the steel-frame building. Results show that the seasonal frost has great impact on the foundation stiffness in the horizontal direction and a clear influence on the building dynamic behavior. If other conditions remain the same, the effects of seasonal frost on structural dynamic behavior may be much more prominent for RC-type buildings than for steel-frame buildings. ?? 2007 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Cold Regions Science and Technology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.coldregions.2007.05.001","issn":"0165232X","usgsCitation":"Yang, Z., Dutta, U., Xiong, F., Biswas, N., and Benz, H., 2008, Seasonal frost effects on the dynamic behavior of a twenty-story office building: Cold Regions Science and Technology, v. 51, no. 1, p. 76-84, https://doi.org/10.1016/j.coldregions.2007.05.001.","startPage":"76","endPage":"84","numberOfPages":"9","costCenters":[],"links":[{"id":240871,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213263,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.coldregions.2007.05.001"}],"volume":"51","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b88a8e4b08c986b316aaf","contributors":{"authors":[{"text":"Yang, Z.","contributorId":97709,"corporation":false,"usgs":true,"family":"Yang","given":"Z.","affiliations":[],"preferred":false,"id":440354,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dutta, U.","contributorId":11416,"corporation":false,"usgs":true,"family":"Dutta","given":"U.","email":"","affiliations":[],"preferred":false,"id":440351,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Xiong, F.","contributorId":9874,"corporation":false,"usgs":true,"family":"Xiong","given":"F.","email":"","affiliations":[],"preferred":false,"id":440350,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Biswas, N.","contributorId":23340,"corporation":false,"usgs":true,"family":"Biswas","given":"N.","email":"","affiliations":[],"preferred":false,"id":440352,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Benz, H.","contributorId":61953,"corporation":false,"usgs":true,"family":"Benz","given":"H.","email":"","affiliations":[],"preferred":false,"id":440353,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70033326,"text":"70033326 - 2008 - Role of NSO compounds during primary cracking of a Type II kerogen and a Type III lignite","interactions":[],"lastModifiedDate":"2012-03-12T17:21:37","indexId":"70033326","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":"Role of NSO compounds during primary cracking of a Type II kerogen and a Type III lignite","docAbstract":"The aim of this work is to follow the generation of NSO compounds during the artificial maturation of an immature Type II kerogen and a Type III lignite in order to determine the different sources of the petroleum potential during primary cracking. Experiments were carried out in closed system pyrolysis in the temperature range from 225 to 350 ??C. Two types of NSOs were recovered: one is soluble in n-pentane and the second in dichloromethane. A kinetic scheme was optimised including both kerogen and NSO cracking. It was validated by complementary experiments carried out on isolated asphaltenes generated from the Type II kerogen and on the total n-pentane and DCM extracts generated from the Type III lignite. Results show that kerogen and lignite first decompose into DCM NSOs with minor generation of hydrocarbons. Then, the main source of petroleum potential originates from secondary cracking of both DCM and n-pentane NSOs through successive decomposition reactions. These results confirm the model proposed by Tissot [Tissot, B., 1969. Premie??res donne??es sur les me??canismes et la cine??tique de la formation du pe??trole dans les bassins se??dimentaires. Simulation d'un sche??ma re??actionnel sur ordinateur. Oil and Gas Science and Technology 24, 470-501] in which the main source of hydrocarbons is not the insoluble organic matter, but the NSO fraction. As secondary cracking of the NSOs largely overlaps that of the kerogen, it was demonstrated that bulk kinetics in open system is a result of both kerogen and NSO cracking. Thus, another kinetic scheme for primary cracking in open system was built as a combination of kerogen and NSO cracking. This new kinetic scheme accounts for both the rate and amounts of hydrocarbons generated in a closed pyrolysis system. Thus, the concept of successive steps for hydrocarbon generation is valid for the two types of pyrolysis system and, for the first time, a common kinetic scheme is available for extrapolating results to natural case studies. ?? 2007 Elsevier Ltd. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Organic Geochemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.orggeochem.2007.10.007","issn":"01466380","usgsCitation":"Behar, F., Lorant, F., and Lewan, M., 2008, Role of NSO compounds during primary cracking of a Type II kerogen and a Type III lignite: Organic Geochemistry, v. 39, no. 1, p. 1-22, https://doi.org/10.1016/j.orggeochem.2007.10.007.","startPage":"1","endPage":"22","numberOfPages":"22","costCenters":[],"links":[{"id":240870,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213262,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.orggeochem.2007.10.007"}],"volume":"39","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aae3be4b0c8380cd87051","contributors":{"authors":[{"text":"Behar, F.","contributorId":70164,"corporation":false,"usgs":true,"family":"Behar","given":"F.","email":"","affiliations":[],"preferred":false,"id":440348,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lorant, F.","contributorId":72990,"corporation":false,"usgs":true,"family":"Lorant","given":"F.","email":"","affiliations":[],"preferred":false,"id":440349,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lewan, M.","contributorId":60447,"corporation":false,"usgs":true,"family":"Lewan","given":"M.","affiliations":[],"preferred":false,"id":440347,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70033562,"text":"70033562 - 2008 - Relation between species assemblages of fishes and water quality in salt ponds and sloughs in South San Francisco Bay","interactions":[],"lastModifiedDate":"2018-09-26T09:58:11","indexId":"70033562","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3451,"text":"Southwestern Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Relation between species assemblages of fishes and water quality in salt ponds and sloughs in South San Francisco Bay","docAbstract":"This study was conducted to characterize fishery resources inhabiting salt-evaporation ponds and sloughs in South San Francisco Bay, and to identify key environmental variables that influence distribution of fishes. The ponds, which were originally constructed and operated for commercial production of salt, have undergone preliminary modifications (installation of culverts, gates, and other water-control structures) in preparation for full restoration to mostly tidal wetlands over the next 2 decades. We sampled fish from two salt-pond complexes (Alviso complex and Eden Landing complex), each consisting of several pond systems and their associated sloughs. Cluster analysis of species of fish indicated that at least two species assemblages were present, one characteristic of ponds and the other characteristic of sloughs and slough-like ponds. The slough-like ponds exhibited water-quality conditions (especially salinity) that resembled conditions found in the sloughs. Pond fishes were represented by 12 species, whereas slough fishes were represented by 22 species. Except for bay pipefish (Syngnathus leptorhynchus), which was unique to ponds, all species present in ponds also were in sloughs and slough-like ponds. These results indicated that species of fish in ponds originated from the sloughs. According to canonical-discriminant analysis, four environmental variables were useful for discriminating between the two species assemblages. Most discriminatory power was contributed by the index of habitat connectivity, a measure of minimum distance that a fish must travel to reach a particular pond from the nearest slough. Apparently, as fish from sloughs enter and move through interconnected salt ponds, environmental stress factors increase in severity until only the more tolerant species remain. The most likely source of stress is salinity, because this variable was second in importance to the index of habitat connectivity in discriminating between the two species assemblages. Water temperature and concentration of dissolved oxygen also seemingly influenced spatial distribution of fishes, although they were less important than salinity.","language":"English","publisher":"Southwestern Association of Naturalists","doi":"10.1894/GG-26.1","issn":"00384909","usgsCitation":"Mejia, F., Saiki, M.K., and Takekawa, J.Y., 2008, Relation between species assemblages of fishes and water quality in salt ponds and sloughs in South San Francisco Bay: Southwestern Naturalist, v. 53, no. 3, p. 335-345, https://doi.org/10.1894/GG-26.1.","productDescription":"11 p.","startPage":"335","endPage":"345","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":241823,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214129,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1894/GG-26.1"}],"volume":"53","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e4a646e4b0e8fec6cdc15f","contributors":{"authors":[{"text":"Mejia, F.","contributorId":73011,"corporation":false,"usgs":true,"family":"Mejia","given":"F.","email":"","affiliations":[],"preferred":false,"id":441450,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Saiki, M. K.","contributorId":28917,"corporation":false,"usgs":true,"family":"Saiki","given":"M.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":441448,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Takekawa, John Y. 0000-0003-0217-5907 john_takekawa@usgs.gov","orcid":"https://orcid.org/0000-0003-0217-5907","contributorId":176168,"corporation":false,"usgs":true,"family":"Takekawa","given":"John","email":"john_takekawa@usgs.gov","middleInitial":"Y.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":false,"id":441449,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70033543,"text":"70033543 - 2008 - Anatomy of the Chesapeake Bay impact structure revealed by seismic imaging, Delmarva Peninsula, Virginia, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:21:32","indexId":"70033543","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Anatomy of the Chesapeake Bay impact structure revealed by seismic imaging, Delmarva Peninsula, Virginia, USA","docAbstract":"A 30-km-long, radial seismic reflection and refraction survey completed across the northern part of the late Eocene Chesapeake Bay impact structure (CBIS) on the Delmarva Peninsula, Virginia, USA, confirms that the CBIS is a complex central-peak crater. We used a tomographic P wave velocity model and low-fold reflection images, constrained by data from two deep boreholes located on the profile, to interpret the structure and composition of the upper 5 km of crust. The seismic images exhibit well-defined structural features, including (with increasing radial distance) a collapsed central uplift, a breccia-filled moat, and a collapsed transient-crater margin (which collectively constitute a ???40-km-wide collapsed transient crater), and a shallowly deformed annular trough. These seismic images are the first to resolve the deep structure of the crater (>1 km) and the boundaries between the central uplift, moat, and annular trough. Several distinct seismic signatures distinguish breccia units from each other and from more coherent crystalline rocks below the central uplift, moat, and annular trough. Within the moat, breccia extends to a minimum depth of 1.5 km or a maximum of 3.5 km, depending upon the interpretation of the deepest layered materials. The images show ???350 to 500 m of postimpact sediments above the impactites. The imaged structure of the CBIS indicates a complex sequence of event during the cratering process that will provide new constraints for numerical modeling. Copyright 2008 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research B: Solid Earth","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2007JB005421","issn":"01480","usgsCitation":"Catchings, R.D., Powars, D., Gohn, G.S., Horton, J.W., Goldman, M.R., and Hole, J., 2008, Anatomy of the Chesapeake Bay impact structure revealed by seismic imaging, Delmarva Peninsula, Virginia, USA: Journal of Geophysical Research B: Solid Earth, v. 113, no. 8, https://doi.org/10.1029/2007JB005421.","costCenters":[],"links":[{"id":214364,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2007JB005421"},{"id":242085,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"113","issue":"8","noUsgsAuthors":false,"publicationDate":"2008-08-22","publicationStatus":"PW","scienceBaseUri":"5059ebf1e4b0c8380cd48fa5","contributors":{"authors":[{"text":"Catchings, R. D.","contributorId":98738,"corporation":false,"usgs":true,"family":"Catchings","given":"R.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":441380,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Powars, D.S.","contributorId":7303,"corporation":false,"usgs":true,"family":"Powars","given":"D.S.","affiliations":[],"preferred":false,"id":441377,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gohn, G. S.","contributorId":25937,"corporation":false,"usgs":true,"family":"Gohn","given":"G.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":441378,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Horton, J. Wright Jr. 0000-0001-6756-6365 whorton@usgs.gov","orcid":"https://orcid.org/0000-0001-6756-6365","contributorId":81184,"corporation":false,"usgs":true,"family":"Horton","given":"J.","suffix":"Jr.","email":"whorton@usgs.gov","middleInitial":"Wright","affiliations":[],"preferred":false,"id":441379,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Goldman, M. R.","contributorId":106934,"corporation":false,"usgs":true,"family":"Goldman","given":"M.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":441382,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hole, J.A.","contributorId":103422,"corporation":false,"usgs":true,"family":"Hole","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":441381,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
]}