{"pageNumber":"2306","pageRowStart":"57625","pageSize":"25","recordCount":184660,"records":[{"id":70031106,"text":"70031106 - 2007 - Regional uplift associated with continental large igneous provinces: The roles of mantle plumes and the lithosphere","interactions":[],"lastModifiedDate":"2012-03-12T17:21:16","indexId":"70031106","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1213,"text":"Chemical Geology","active":true,"publicationSubtype":{"id":10}},"title":"Regional uplift associated with continental large igneous provinces: The roles of mantle plumes and the lithosphere","docAbstract":"The timing and duration of surface uplift associated with large igneous provinces provide important constraints on mantle convection processes. Here we review geological indicators of surface uplift associated with five continent-based magmatic provinces: Emeishan Traps (260??million years ago: Ma), Siberian Traps (251??Ma), Deccan Traps (65??Ma), North Atlantic (Phase 1, 61??Ma and Phase 2, 55??Ma), and Yellowstone (16??Ma to recent). All five magmatic provinces were associated with surface uplift. Surface uplift can be measured directly from sedimentary indicators of sea-level in the North Atlantic and from geomorpholocial indicators of relative uplift and tilting in Yellowstone. In the other provinces, surface uplift is inferred from the record of erosion. In the Deccan, North Atlantic and Emeishan provinces, transient uplift that results from variations in thermal structure of the lithosphere and underlying mantle can be distinguished from permanent uplift that results from the extraction and emplacement of magma. Transient surface uplift is more useful in constraining mantle convection since models of melt generation and emplacement are not required for its interpretation. Observations of the spatial and temporal relationships between surface uplift, rifting and magmatism are also important in constraining models of LIP formation. Onset of surface uplift preceded magmatism in all five of the provinces. Biostratigraphic constraints on timing of uplift and erosion are best for the North Atlantic and Emeishan Provinces, where the time interval between significant uplift and first magmatism is less than 1??million years and 2.5??million years respectively. Rifting post-dates the earliest magmatism in the case of the North Atlantic Phase 1 and possibly in the case of Siberia. The relative age of onset of offshore rifting is not well constrained for the Deccan and the importance of rifting in controlling magmatism is disputed in the Emeishan and Yellowstone Provinces. In these examples, rifting is not a requirement for onset of LIP magmatism but melting rates are significantly increased when rifting occurs. Models that attempt to explain emplacement of these five LIPs without hot mantle supplied by mantle plumes often have difficulties in explaining the observations of surface uplift, rifting and magmatism. For example, small-scale convection related to craton or rift boundaries (edge-driven convection) cannot easily explain widespread (1000??km scale) transient surface uplift (Emeishan, Deccan, North Atlantic), and upper mantle convection initiated by differential incubation beneath cratons (the hotcell model) is at odds with rapid onset of surface uplift (Emeishan, North Atlantic). The start-up plume concept is still the most parsimonious way of explaining the observations presented here. However, observations of surface uplift cannot directly constrain the depth of origin of the hot mantle in a plume head. The short time interval between onset of transient surface uplift and magmatism in the North Atlantic and Emeishan means that the associated starting plume heads were probably not large (??? 1000??km diameter) roughly spherical diapirs and are likely to have formed narrow (??? 100??km radius) upwelling jets, with hot mantle then spreading rapidly outward within the asthenosphere. In cases where rifting post-dates magmatism (N Atlantic Phase 1) or where the degree of lithospheric extension may not have been great (Siberia), a secondary mechanism of lithospheric thinning, such as gravitational instability or delamination of the lower lithosphere, may be required to allow hot mantle to decompress sufficiently to explain the observed volume of magma with a shallow melting geochemical signature. Any such additional thinning mechanisms are probably a direct consequence of plume head emplacement. ?? 2007 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Chemical Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.chemgeo.2007.01.017","issn":"00092541","usgsCitation":"Saunders, A., Jones, S., Morgan, L.A., Pierce, K.L., Widdowson, M., and Xu, Y., 2007, Regional uplift associated with continental large igneous provinces: The roles of mantle plumes and the lithosphere: Chemical Geology, v. 241, no. 3-4, p. 282-318, https://doi.org/10.1016/j.chemgeo.2007.01.017.","startPage":"282","endPage":"318","numberOfPages":"37","costCenters":[],"links":[{"id":211543,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.chemgeo.2007.01.017"},{"id":238845,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"241","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e4a594e4b0e8fec6cdbe7d","contributors":{"authors":[{"text":"Saunders, A.D.","contributorId":40011,"corporation":false,"usgs":true,"family":"Saunders","given":"A.D.","email":"","affiliations":[],"preferred":false,"id":430059,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jones, S.M.","contributorId":82523,"corporation":false,"usgs":true,"family":"Jones","given":"S.M.","email":"","affiliations":[],"preferred":false,"id":430060,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Morgan, L. A.","contributorId":16350,"corporation":false,"usgs":true,"family":"Morgan","given":"L.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":430058,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pierce, K. L.","contributorId":12404,"corporation":false,"usgs":true,"family":"Pierce","given":"K.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":430057,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Widdowson, M.","contributorId":9821,"corporation":false,"usgs":true,"family":"Widdowson","given":"M.","email":"","affiliations":[],"preferred":false,"id":430056,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Xu, Y.G.","contributorId":91298,"corporation":false,"usgs":true,"family":"Xu","given":"Y.G.","email":"","affiliations":[],"preferred":false,"id":430061,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70030980,"text":"70030980 - 2007 - USGS QA Plan: Certification of digital airborne mapping products","interactions":[],"lastModifiedDate":"2017-04-14T13:31:15","indexId":"70030980","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1720,"text":"GIM International","active":true,"publicationSubtype":{"id":10}},"title":"USGS QA Plan: Certification of digital airborne mapping products","docAbstract":"To facilitate acceptance of new digital technologies in aerial imaging and mapping, the US Geological Survey (USGS) and its partners have launched a Quality Assurance (QA) Plan for Digital Aerial Imagery. This should provide a foundation for the quality of digital aerial imagery and products. It introduces broader considerations regarding processes employed by aerial flyers in collecting, processing and delivering data, and provides training and information for US producers and users alike.","language":"English","publisher":"Geomares Publishing","issn":"15669076","usgsCitation":"Christopherson, J., 2007, USGS QA Plan: Certification of digital airborne mapping products: GIM International, v. 21, no. 9.","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":238903,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"21","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbbaae4b08c986b328771","contributors":{"authors":[{"text":"Christopherson, J. 0000-0002-2472-0059","orcid":"https://orcid.org/0000-0002-2472-0059","contributorId":40802,"corporation":false,"usgs":true,"family":"Christopherson","given":"J.","affiliations":[],"preferred":false,"id":429487,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70030964,"text":"70030964 - 2007 - Thioarsenates in geothermal waters of Yellowstone National Park: Determination, preservation, and geochemical importance","interactions":[],"lastModifiedDate":"2018-10-16T08:33:27","indexId":"70030964","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Thioarsenates in geothermal waters of Yellowstone National Park: Determination, preservation, and geochemical importance","docAbstract":"

Mono-, di-, tri-, and tetrathioarsenate, as well as methylated arsenic oxy- and thioanions, were determined besides arsenite and arsenate in geothermal waters of Yellowstone National Park using anion-exchange chromatography inductively coupled plasma mass spectrometry. Retention time match with synthetic standards, measured S:As ratios, and molecular electrospray mass spectra support the identification. Acidification was unsuitable for arsenic species preservation in sulfidic waters, with HCl addition causing loss of total dissolved arsenic, presumably by precipitation of arsenic-sulfides. Flash-freezing is preferred for the preservation of arsenic species for several weeks. After thawing, samples must be analyzed immediately. Thioarsenates occurred over a pH range of 2.1 to 9.3 in the geothermal waters. They clearly predominated under alkaline conditions (up to 83% of total arsenic), but monothioarsenate also was detected in acidic waters (up to 34%). Kinetic studies along a drainage channel showed the importance of thioarsenates for the fate of arsenic discharged from the sulfidic hot spring. The observed arsenic speciation changes suggest three separate reactions: the transformation of trithioarsenate to arsenite (major initial reaction), the stepwise ligand exchange from tri- via di- and monothioarsenate to arsenate (minor reaction), and the oxidation of arsenite to arsenate, which only becomes quantitatively important after thioarsenates have disappeared.

","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Science and Technology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1021/es070273v","issn":"0013936X","usgsCitation":"Planer-Friedrich, B., London, J., McCleskey, R.B., Nordstrom, D.K., and Wallschlager, D., 2007, Thioarsenates in geothermal waters of Yellowstone National Park: Determination, preservation, and geochemical importance: Environmental Science & Technology, v. 41, no. 15, p. 5245-5251, https://doi.org/10.1021/es070273v.","productDescription":"7 p.","startPage":"5245","endPage":"5251","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":211362,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/es070273v"},{"id":238640,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wyoming","otherGeospatial":"Yellowstone National Park","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -111.368408203125,\n 43.67581809328341\n ],\n [\n -109.522705078125,\n 43.67581809328341\n ],\n [\n -109.522705078125,\n 45.19752230305682\n ],\n [\n -111.368408203125,\n 45.19752230305682\n ],\n [\n -111.368408203125,\n 43.67581809328341\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"41","issue":"15","noUsgsAuthors":false,"publicationDate":"2007-06-16","publicationStatus":"PW","scienceBaseUri":"505bb2c0e4b08c986b3259b9","contributors":{"authors":[{"text":"Planer-Friedrich, B.","contributorId":87749,"corporation":false,"usgs":true,"family":"Planer-Friedrich","given":"B.","email":"","affiliations":[],"preferred":false,"id":429419,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"London, J.","contributorId":22931,"corporation":false,"usgs":true,"family":"London","given":"J.","email":"","affiliations":[],"preferred":false,"id":429417,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McCleskey, R. Blaine 0000-0002-2521-8052 rbmccles@usgs.gov","orcid":"https://orcid.org/0000-0002-2521-8052","contributorId":147399,"corporation":false,"usgs":true,"family":"McCleskey","given":"R.","email":"rbmccles@usgs.gov","middleInitial":"Blaine","affiliations":[{"id":503,"text":"Office of Water Quality","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":429416,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Nordstrom, D. Kirk 0000-0003-3283-5136 dkn@usgs.gov","orcid":"https://orcid.org/0000-0003-3283-5136","contributorId":749,"corporation":false,"usgs":true,"family":"Nordstrom","given":"D.","email":"dkn@usgs.gov","middleInitial":"Kirk","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":false,"id":429420,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wallschlager, D.","contributorId":38357,"corporation":false,"usgs":true,"family":"Wallschlager","given":"D.","email":"","affiliations":[],"preferred":false,"id":429418,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70030899,"text":"70030899 - 2007 - Landscape factors influencing the spatial distribution and abundance of mosquito vector Culex quinquefasciatus (Diptera: Culicidae) in a mixed residential-agricultural community in Hawai'i","interactions":[],"lastModifiedDate":"2012-03-12T17:21:15","indexId":"70030899","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2385,"text":"Journal of Medical Entomology","active":true,"publicationSubtype":{"id":10}},"title":"Landscape factors influencing the spatial distribution and abundance of mosquito vector Culex quinquefasciatus (Diptera: Culicidae) in a mixed residential-agricultural community in Hawai'i","docAbstract":"Mosquito-borne avian diseases, principally avian malaria (Plasmodium relictum Grassi and Feletti) and avian pox (Avipoxvirus sp.) have been implicated as the key limiting factor associated with recent declines of endemic avifauna in the Hawaiian Island archipelago. We present data on the relative abundance, infection status, and spatial distribution of the primary mosquito vector Culex quinquefasciatus Say (Diptera: Culicidae) across a mixed, residential-agricultural community adjacent to Hawai'i Volcanoes National Park on Hawai'i Island. We modeled the effect of agriculture and forest fragmentation in determining relative abundance of adult Cx. quinquefasciatus in Volcano Village, and we implement our statistical model in a geographic information system to generate a probability of mosquito capture prediction surface for the study area. Our model was based on biweekly captures of adult mosquitoes from 20 locations within Volcano Village from October 2001 to April 2003. We used mixed effects logistic regression to model the probability of capturing a mosquito, and we developed a set of 17 competing models a priori to specifically evaluate the effect of agriculture and fragmentation (i.e., residential landscapes) at two spatial scales. In total, 2,126 mosquitoes were captured in CO 2-baited traps with an average probability of 0.27 (SE = 0.10) of capturing one or more mosquitoes per trap night. Twelve percent of mosquitoes captured were infected with P. relictum. Our data indicate that agricultural lands and forest fragmentation significantly increase the probability of mosquito capture. The prediction surface identified areas along the Hawai'i Volcanoes National Park boundary that may have high relative abundance of the vector. Our data document the potential of avian malaria transmission in residential-agricultural landscapes and support the need for vector management that extends beyond reserve boundaries and considers a reserve's spatial position in a highly heterogeneous landscape.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Medical Entomology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1603/0022-2585(2007)44[861:LFITSD]2.0.CO;2","issn":"00222585","usgsCitation":"Reiter, M., and Lapointe, D., 2007, Landscape factors influencing the spatial distribution and abundance of mosquito vector Culex quinquefasciatus (Diptera: Culicidae) in a mixed residential-agricultural community in Hawai'i: Journal of Medical Entomology, v. 44, no. 5, p. 861-868, https://doi.org/10.1603/0022-2585(2007)44[861:LFITSD]2.0.CO;2.","startPage":"861","endPage":"868","numberOfPages":"8","costCenters":[],"links":[{"id":211416,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1603/0022-2585(2007)44[861:LFITSD]2.0.CO;2"},{"id":238701,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"44","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a440fe4b0c8380cd66809","contributors":{"authors":[{"text":"Reiter, M.E.","contributorId":80065,"corporation":false,"usgs":true,"family":"Reiter","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":429136,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lapointe, D.A.","contributorId":69691,"corporation":false,"usgs":true,"family":"Lapointe","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":429135,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70033117,"text":"70033117 - 2007 - Ages and origins of rocks of the Killingworth dome, south-central Connecticut: Implications for the tectonic evolution of southern New England","interactions":[],"lastModifiedDate":"2012-03-12T17:21:23","indexId":"70033117","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":732,"text":"American Journal of Science","active":true,"publicationSubtype":{"id":10}},"title":"Ages and origins of rocks of the Killingworth dome, south-central Connecticut: Implications for the tectonic evolution of southern New England","docAbstract":"The Killingworth dome of south-central Connecticut occurs at the southern end of the Bronson Hill belt. It is composed of tonalitic and trondhjemitic orthogneisses (Killingworth complex) and bimodal metavolcanic rocks (Middletown complex) that display calc-alkaline affinities. Orthogneisses of the Killingworth complex (Boulder Lake gneiss, 456 ?? 6 Ma; Pond Meadow gneiss, ???460 Ma) were emplaced at about the same time as eruption and deposition of volcanic-sedimentary rocks of the Middletown complex (Middletown Formation, 449 ?? 4 Ma; Higganum gneiss, 459 ?? 4 Ma). Hidden Lake gneiss (339 ?? 3 Ma) occurs as a pluton in the core of the Killingworth dome, and, on the basis of geochemical and isotopic data, is included in the Killingworth complex. Pb and Nd isotopic data suggest that the Pond Meadow, Boulder Lake, and Hidden Lake gneisses (Killingworth complex) resulted from mixing of Neoproterozoic Gander terrane sources (high 207Pb/204Pb and intermediate ??Nd) and less radiogenic (low 207Pb/204Pb and low ??Nd) components, whereas Middletown Formation and Higganum gneiss (Middletown complex) were derived from mixtures of Gander basement and primitive (low 207Pb/204Pb and high ??Nd) sources. The less radiogenic component for the Killingworth complex is similar in isotopic composition to material from Laurentian (Grenville) crust. However, because published paleomagnetic and paleontologic data indicate that the Gander terrane is peri-Gondwanan in origin, the isotopic signature of Killingworth complex rocks probably was derived from Gander basement that contained detritus from non-Laurentian sources such as Amazonia, Baltica, or Oaxaquia. We suggest that the Killingworth complex formed above an east-dipping subduction zone on the west margin of the Gander terrane, whereas the Middletown complex formed to the east in a back-arc rift environment. Subsequent shortening, associated with the assembly of Pangea in the Carboniferous, resulted in Gander cover terranes over the Avalon terrane in the west; and in the Middletown complex over the Killingworth complex in the east. Despite similarities of emplacement age, structural setting, and geographic continuity of the Killingworth dome with Oliverian domes in central and northern New England, new and published isotopic data suggest that the Killingworth and Middletown complexes were derived from Gander crust, and are not part of the Bronson Hill arc that was derived from Laurentian crust. The trace of the Ordovician Iapetan suture (the Red Indian line) between rocks of Laurentian and Ganderian origin probably extends from Southwestern New Hampshire west of the Pelham dome of northcentral Massachusetts and is coverd by Mesozoic rocks of the Hartford basin.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"American Journal of Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2475/01.2007.04","issn":"00029599","usgsCitation":"Aleinikoff, J.N., Wintsch, R., Tollo, R., Unruh, D., Fanning, C., and Schmitz, M., 2007, Ages and origins of rocks of the Killingworth dome, south-central Connecticut: Implications for the tectonic evolution of southern New England: American Journal of Science, v. 307, no. 1, p. 63-118, https://doi.org/10.2475/01.2007.04.","startPage":"63","endPage":"118","numberOfPages":"56","costCenters":[],"links":[{"id":477221,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2475/01.2007.04","text":"Publisher Index Page"},{"id":241226,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213588,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2475/01.2007.04"}],"volume":"307","issue":"1","noUsgsAuthors":false,"publicationDate":"2007-05-11","publicationStatus":"PW","scienceBaseUri":"5059e902e4b0c8380cd4802f","contributors":{"authors":[{"text":"Aleinikoff, J. N. 0000-0003-3494-6841","orcid":"https://orcid.org/0000-0003-3494-6841","contributorId":75132,"corporation":false,"usgs":true,"family":"Aleinikoff","given":"J.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":439445,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wintsch, R. P.","contributorId":104921,"corporation":false,"usgs":false,"family":"Wintsch","given":"R. P.","affiliations":[{"id":13366,"text":"Indiana University, Bloomington, Indiana, USA","active":true,"usgs":false}],"preferred":false,"id":439447,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tollo, R.P.","contributorId":55467,"corporation":false,"usgs":true,"family":"Tollo","given":"R.P.","affiliations":[],"preferred":false,"id":439443,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Unruh, D.M.","contributorId":8498,"corporation":false,"usgs":true,"family":"Unruh","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":439442,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Fanning, C.M.","contributorId":82434,"corporation":false,"usgs":true,"family":"Fanning","given":"C.M.","email":"","affiliations":[],"preferred":false,"id":439446,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Schmitz, M.D.","contributorId":61638,"corporation":false,"usgs":true,"family":"Schmitz","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":439444,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70030749,"text":"70030749 - 2007 - Remote sensing of particle backscattering in Chesapeake Bay: a 6-year SeaWiFS retrospective view","interactions":[],"lastModifiedDate":"2014-10-09T11:14:03","indexId":"70030749","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1587,"text":"Estuarine, Coastal and Shelf Science","active":true,"publicationSubtype":{"id":10}},"title":"Remote sensing of particle backscattering in Chesapeake Bay: a 6-year SeaWiFS retrospective view","docAbstract":"Traditional field techniques to monitor water quality in large estuaries, such as boat-based surveys and autonomous moored sensors, generally provide limited spatial coverage. Satellite imagery potentially can be used to address both of these limitations. Here, we show that satellite-based observations are useful for inferring total-suspended-solids (TSS) concentrations in estuarine areas. A spectra-matching optimization algorithm was used to estimate the particle backscattering coefficient at 400 nm, bbp(400), in Chesapeake Bay from Sea-viewing Wide-Field-of-view Sensor (SeaWiFS) satellite imagery. These estimated values of bbp(400) were compared to in situ measurements of TSS for the study period of September 1997–December 2003. Contemporaneous SeaWiFS bbp(400) values and TSS concentrations were positively correlated (N = 340, r2 = 0.4, P < 0.0005), and the satellite-derived bbp(400) values served as a reasonable first-order approximation for synoptically mapping TSS. Overall, large-scale patterns of SeaWiFS bbp(400) appeared to be consistent with expectations based on field observations and historical reports of TSS. Monthly averages indicated that SeaWiFS bbp(400) was typically largest in winter (>0.049 m−1, November–February) and smallest in summer (<0.031 m−1, June–August), regardless of the amount of riverine discharge to the bay. The study period also included Hurricanes Floyd and Isabel, which caused large-scale turbidity events and changes in the water quality of the bay. These results demonstrate that this technique can provide frequent synoptic assessments of suspended solids concentrations in Chesapeake Bay and other coastal regions.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Estuarine, Coastal and Shelf Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.ecss.2007.03.005","issn":"02727714","usgsCitation":"Zawada, D., Hu, C., Clayton, T., Chen, Z., Brock, J.C., and Muller-Karger, F., 2007, Remote sensing of particle backscattering in Chesapeake Bay: a 6-year SeaWiFS retrospective view: Estuarine, Coastal and Shelf Science, v. 73, no. 3-4, p. 792-806, https://doi.org/10.1016/j.ecss.2007.03.005.","productDescription":"15 p.","startPage":"792","endPage":"806","numberOfPages":"15","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":211630,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.ecss.2007.03.005"},{"id":238953,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Chesapeake Bay","volume":"73","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aa702e4b0c8380cd8518f","contributors":{"authors":[{"text":"Zawada, D.G.","contributorId":8938,"corporation":false,"usgs":true,"family":"Zawada","given":"D.G.","email":"","affiliations":[],"preferred":false,"id":428510,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hu, C.","contributorId":75748,"corporation":false,"usgs":true,"family":"Hu","given":"C.","email":"","affiliations":[],"preferred":false,"id":428513,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Clayton, T.","contributorId":83332,"corporation":false,"usgs":true,"family":"Clayton","given":"T.","email":"","affiliations":[],"preferred":false,"id":428514,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Chen, Z.","contributorId":26117,"corporation":false,"usgs":true,"family":"Chen","given":"Z.","email":"","affiliations":[],"preferred":false,"id":428511,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Brock, J. C.","contributorId":36095,"corporation":false,"usgs":true,"family":"Brock","given":"J.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":428512,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Muller-Karger, F. E.","contributorId":84542,"corporation":false,"usgs":true,"family":"Muller-Karger","given":"F. E.","affiliations":[],"preferred":false,"id":428515,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70033215,"text":"70033215 - 2007 - Pleistocene Brawley and Ocotillo Formations: Evidence for initial strike-slip deformation along the San Felipe and San Jacinto fault zonez, Southern California","interactions":[],"lastModifiedDate":"2012-03-12T17:21:24","indexId":"70033215","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2309,"text":"Journal of Geology","active":true,"publicationSubtype":{"id":10}},"title":"Pleistocene Brawley and Ocotillo Formations: Evidence for initial strike-slip deformation along the San Felipe and San Jacinto fault zonez, Southern California","docAbstract":"We examine the Pleistocene tectonic reorganization of the Pacific-North American plate boundary in the Salton Trough of southern California with an integrated approach that includes basin analysis, magnetostratigraphy, and geologic mapping of upper Pliocene to Pleistocene sedimentary rocks in the San Felipe Hills. These deposits preserve the earliest sedimentary record of movement on the San Felipe and San Jacinto fault zones that replaced and deactivated the late Cenozoic West Salton detachment fault. Sandstone and mudstone of the Brawley Formation accumulated between ???1.1 and ???0.6-0.5 Ma in a delta on the margin of an arid Pleistocene lake, which received sediment from alluvial fans of the Ocotillo Formation to the west-southwest. Our analysis indicates that the Ocotillo and Brawley formations prograded abruptly to the east-northeast across a former mud-dominated perennial lake (Borrego Formation) at ???1.1 Ma in response to initiation of the dextral-oblique San Felipe fault zone. The ???25-km-long San Felipe anticline initiated at about the same time and produced an intrabasinal basement-cored high within the San Felipe-Borrego basin that is recorded by progressive unconformities on its north and south limbs. A disconformity at the base of the Brawley Formation in the eastern San Felipe Hills probably records initiation and early blind slip at the southeast tip of the Clark strand of the San Jacinto fault zone. Our data are consistent with abrupt and nearly synchronous inception of the San Jacinto and San Felipe fault zones southwest of the southern San Andreas fault in the early Pleistocene during a pronounced southwestward broadening of the San Andreas fault zone. The current contractional geometry of the San Jacinto fault zone developed after ???0.5-0.6 Ma during a second, less significant change in structural style. ?? 2007 by The University of Chicago. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1086/509248","issn":"00221376","usgsCitation":"Kirby, S., Janecke, S.U., Dorsey, R., Housen, B., Langenheim, V., McDougall, K., and Steeley, A., 2007, Pleistocene Brawley and Ocotillo Formations: Evidence for initial strike-slip deformation along the San Felipe and San Jacinto fault zonez, Southern California: Journal of Geology, v. 115, no. 1, p. 43-62, https://doi.org/10.1086/509248.","startPage":"43","endPage":"62","numberOfPages":"20","costCenters":[],"links":[{"id":213563,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1086/509248"},{"id":241197,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"115","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7c3fe4b0c8380cd798a7","contributors":{"authors":[{"text":"Kirby, S.M.","contributorId":46774,"corporation":false,"usgs":true,"family":"Kirby","given":"S.M.","email":"","affiliations":[],"preferred":false,"id":439871,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Janecke, S. U.","contributorId":42296,"corporation":false,"usgs":true,"family":"Janecke","given":"S.","email":"","middleInitial":"U.","affiliations":[],"preferred":false,"id":439869,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dorsey, R.J.","contributorId":45115,"corporation":false,"usgs":true,"family":"Dorsey","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":439870,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Housen, B.A.","contributorId":37958,"corporation":false,"usgs":true,"family":"Housen","given":"B.A.","affiliations":[],"preferred":false,"id":439867,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Langenheim, V.E. 0000-0003-2170-5213","orcid":"https://orcid.org/0000-0003-2170-5213","contributorId":54956,"corporation":false,"usgs":true,"family":"Langenheim","given":"V.E.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":false,"id":439872,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"McDougall, K. A. 0000-0002-8788-3664","orcid":"https://orcid.org/0000-0002-8788-3664","contributorId":14848,"corporation":false,"usgs":true,"family":"McDougall","given":"K. A.","affiliations":[],"preferred":false,"id":439866,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Steeley, A.N.","contributorId":41225,"corporation":false,"usgs":true,"family":"Steeley","given":"A.N.","email":"","affiliations":[],"preferred":false,"id":439868,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70179404,"text":"70179404 - 2007 - Passage, survival, and approach patterns of radio-tagged juvenile salmonids at Little Goose Dam, 2006","interactions":[],"lastModifiedDate":"2016-12-30T13:22:05","indexId":"70179404","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":4,"text":"Other Government Series"},"title":"Passage, survival, and approach patterns of radio-tagged juvenile salmonids at Little Goose Dam, 2006","language":"English","publisher":"U.S. Army Corps of Engineers","usgsCitation":"Beeman, J., Braatz, A., Fielding, S., Hardiman, J., Walker, C.E., Pope, A., Wilkerson, T., Shurtleff, D., Perry, R., and Counihan, T., 2007, Passage, survival, and approach patterns of radio-tagged juvenile salmonids at Little Goose Dam, 2006.","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":332698,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"586781fae4b0cd2dabe7c72b","contributors":{"authors":[{"text":"Beeman, J.W.","contributorId":32646,"corporation":false,"usgs":true,"family":"Beeman","given":"J.W.","email":"","affiliations":[],"preferred":false,"id":657115,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Braatz, A.C.","contributorId":65962,"corporation":false,"usgs":true,"family":"Braatz","given":"A.C.","email":"","affiliations":[],"preferred":false,"id":657116,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fielding, S.D.","contributorId":16956,"corporation":false,"usgs":true,"family":"Fielding","given":"S.D.","email":"","affiliations":[],"preferred":false,"id":657117,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hardiman, J.M.","contributorId":46274,"corporation":false,"usgs":true,"family":"Hardiman","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":657118,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Walker, C. E.","contributorId":43168,"corporation":false,"usgs":true,"family":"Walker","given":"C.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":657119,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Pope, A.C.","contributorId":177802,"corporation":false,"usgs":false,"family":"Pope","given":"A.C.","email":"","affiliations":[],"preferred":false,"id":657120,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Wilkerson, T.S.","contributorId":177803,"corporation":false,"usgs":false,"family":"Wilkerson","given":"T.S.","email":"","affiliations":[],"preferred":false,"id":657121,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Shurtleff, D.J.","contributorId":93597,"corporation":false,"usgs":true,"family":"Shurtleff","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":657122,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Perry, R.W.","contributorId":43947,"corporation":false,"usgs":true,"family":"Perry","given":"R.W.","email":"","affiliations":[],"preferred":false,"id":657123,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Counihan, T.D.","contributorId":9789,"corporation":false,"usgs":true,"family":"Counihan","given":"T.D.","email":"","affiliations":[],"preferred":false,"id":657124,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}} ,{"id":70032859,"text":"70032859 - 2007 - Genotype, soil type, and locale effects on reciprocal transplant vigor, endophyte growth, and microbial functional diversity of a narrow sagebrush hybrid zone in Salt Creek Canyon, Utah","interactions":[],"lastModifiedDate":"2016-12-30T11:48:11","indexId":"70032859","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":724,"text":"American Journal of Botany","active":true,"publicationSubtype":{"id":10}},"title":"Genotype, soil type, and locale effects on reciprocal transplant vigor, endophyte growth, and microbial functional diversity of a narrow sagebrush hybrid zone in Salt Creek Canyon, Utah","docAbstract":"When addressing the nature of ecological adaptation and environmental factors limiting population ranges and contributing to speciation, it is important to consider not only the plant's genotype and its response to the environment, but also any close interactions that it has with other organisms, specifically, symbiotic microorganisms. To investigate this, soils and seedlings were reciprocally transplanted into common gardens of the big sagebrush hybrid zone in Salt Creek Canyon, Utah, to determine location and edaphic effects on the fitness of parental and hybrid plants. Endophytic symbionts and functional microbial diversity of indigenous and transplanted soils and sagebrush plants were also examined. Strong selection occurred against the parental genotypes in the middle hybrid zone garden in middle hybrid zone soil; F1 hybrids had the highest fitness under these conditions. Neither of the parental genotypes had superior fitness in their indigenous soils and habitats; rather F1 hybrids with the nonindigenous maternal parent were superiorly fit. Significant garden-by-soil type interactions indicate adaptation of both plant and soil microorganisms to their indigenous soils and habitats, most notably in the middle hybrid zone garden in middle hybrid zone soil. Contrasting performances of F1 hybrids suggest asymmetrical gene flow with mountain, rather than basin, big sagebrush acting as the maternal parent. We showed that the microbial community impacted the performance of parental and hybrid plants in different soils, likely limiting the ranges of the different genotypes.","language":"English","publisher":"American Journal of Botany","doi":"10.3732/ajb.94.3.425","issn":"00029122","usgsCitation":"Miglia, K., McArthur, E., Redman, R.S., Rodriguez, R.J., Zak, J., and Freeman, D., 2007, Genotype, soil type, and locale effects on reciprocal transplant vigor, endophyte growth, and microbial functional diversity of a narrow sagebrush hybrid zone in Salt Creek Canyon, Utah: American Journal of Botany, v. 94, no. 3, p. 425-436, https://doi.org/10.3732/ajb.94.3.425.","productDescription":"12 p.","startPage":"425","endPage":"436","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":476996,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3732/ajb.94.3.425","text":"Publisher Index Page"},{"id":241367,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213713,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3732/ajb.94.3.425"}],"country":"United States","state":"Utah","otherGeospatial":"Salt Creek Canyon","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -109.962158203125,\n 38.47079371120379\n ],\n [\n -110.269775390625,\n 38.16911413556086\n ],\n [\n -110.006103515625,\n 37.666429212090605\n ],\n [\n -109.8193359375,\n 37.60552821745789\n ],\n [\n -109.48974609375,\n 37.688167468408025\n ],\n [\n -109.302978515625,\n 37.814123701604466\n ],\n [\n -109.51171875,\n 38.28131307922966\n ],\n [\n -109.676513671875,\n 38.52668162061619\n ],\n [\n -109.88525390624999,\n 38.53527591154413\n ],\n [\n -109.962158203125,\n 38.47079371120379\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"94","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a1594e4b0c8380cd54e9f","contributors":{"authors":[{"text":"Miglia, K.J.","contributorId":53173,"corporation":false,"usgs":true,"family":"Miglia","given":"K.J.","email":"","affiliations":[],"preferred":false,"id":438256,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McArthur, E.D.","contributorId":27274,"corporation":false,"usgs":true,"family":"McArthur","given":"E.D.","email":"","affiliations":[],"preferred":false,"id":438254,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Redman, R. S.","contributorId":26094,"corporation":false,"usgs":true,"family":"Redman","given":"R.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":438253,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rodriguez, R. J.","contributorId":53107,"corporation":false,"usgs":false,"family":"Rodriguez","given":"R.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":438255,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Zak, J.C.","contributorId":82097,"corporation":false,"usgs":true,"family":"Zak","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":438257,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Freeman, D.C.","contributorId":21309,"corporation":false,"usgs":true,"family":"Freeman","given":"D.C.","email":"","affiliations":[],"preferred":false,"id":438252,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70032770,"text":"70032770 - 2007 - Long-term limnological research and monitoring at Crater Lake, Oregon","interactions":[],"lastModifiedDate":"2017-11-15T13:23:06","indexId":"70032770","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1919,"text":"Hydrobiologia","onlineIssn":"1573-5117","printIssn":"0018-8158","active":true,"publicationSubtype":{"id":10}},"title":"Long-term limnological research and monitoring at Crater Lake, Oregon","docAbstract":"Crater Lake is located in the caldera of Mount Mazama in Crater Lake National Park, Oregon. The lake has a surface area of about 53 km2at an elevation of 1882 m and a maximum depth of 594 m. Limited studies of this ultraoligotrophic lake conducted between 1896 and 1981, lead to a 10-year limnological study to evaluate any potential degradation of water quality. No long-term variations in water quality were observed that could be attributed to anthropogenic activity. Building on the success of this study, a permanent limnological program has been established with a long-term monitoring program to insure a reliable data base for use in the future. Of equal importance, this program serves as a research platform to develop and communicate to the public a better understanding of the coupled biological, physical, and geochemical processes in the lake and its surrounding environment. This special volume represents our current state of knowledge of the status of this pristine ecosystem including its special optical properties, algal nutrient limitations, pelagic bacteria, and models of the inter-relationships of thermal properties, nutrients, phytoplankton, deep-water mixing, and water budgets. ?? 2007 Springer Science+Business Media B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrobiologia","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10750-006-0342-6","issn":"00188158","usgsCitation":"Larson, G., Collier, R., and Buktenica, M., 2007, Long-term limnological research and monitoring at Crater Lake, Oregon: Hydrobiologia, v. 574, no. 1, p. 1-11, https://doi.org/10.1007/s10750-006-0342-6.","startPage":"1","endPage":"11","numberOfPages":"11","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":241604,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213929,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10750-006-0342-6"}],"volume":"574","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4998e4b0c8380cd68750","contributors":{"authors":[{"text":"Larson, G.L.","contributorId":103021,"corporation":false,"usgs":true,"family":"Larson","given":"G.L.","email":"","affiliations":[],"preferred":false,"id":437834,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Collier, R.","contributorId":36370,"corporation":false,"usgs":true,"family":"Collier","given":"R.","email":"","affiliations":[],"preferred":false,"id":437832,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Buktenica, M.","contributorId":76148,"corporation":false,"usgs":true,"family":"Buktenica","given":"M.","affiliations":[],"preferred":false,"id":437833,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70033112,"text":"70033112 - 2007 - Evaluating nephrotoxicity of high-molecular-weight organic compounds in drinking water from lignite aquifers","interactions":[],"lastModifiedDate":"2013-03-15T20:30:44","indexId":"70033112","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2481,"text":"Journal of Toxicology and Environmental Health, Part A","active":true,"publicationSubtype":{"id":10}},"title":"Evaluating nephrotoxicity of high-molecular-weight organic compounds in drinking water from lignite aquifers","docAbstract":"High-molecular-weight organic compounds such as humic acids and/or fulvic acids that are naturally mobilized from lignite beds into untreated drinking-water supplies were suggested as one possible cause of Balkan endemic nephropathy (BEN) and cancer of the renal pelvis. A lab investigation was undertaken in order to assess the nephrotoxic potential of such organic compounds using an in vitro tissue culture model. Because of the infeasibility of exposing kidney tissue to low concentrations of organics for years in the lab, tangential flow ultrafiltration was employed to hyperconcentrate samples suitable for discerning effects in the short time frames necessitated by tissue culture systems. Effects on HK-2 kidney cells were measured using two different cell proliferation assays (MTT and alamarBlue). Results demonstrated that exposure of kidney tissue to high-molecular-weight organics produced excess cell death or proliferation depending on concentration and duration of exposure. Copyright ?? Taylor & Francis Group, LLC.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Toxicology and Environmental Health, Part A","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1080/15287390701551274","issn":"15287394","usgsCitation":"Bunnell, J., Tatu, C., Lerch, H., Orem, W., and Pavlovic, N., 2007, Evaluating nephrotoxicity of high-molecular-weight organic compounds in drinking water from lignite aquifers: Journal of Toxicology and Environmental Health, Part A, v. 70, no. 24, p. 2089-2091, https://doi.org/10.1080/15287390701551274.","startPage":"2089","endPage":"2091","numberOfPages":"3","costCenters":[],"links":[{"id":213528,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/15287390701551274"},{"id":241158,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"70","issue":"24","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0beae4b0c8380cd5293c","contributors":{"authors":[{"text":"Bunnell, J.E.","contributorId":63512,"corporation":false,"usgs":true,"family":"Bunnell","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":439426,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tatu, C. A.","contributorId":89942,"corporation":false,"usgs":false,"family":"Tatu","given":"C. A.","affiliations":[],"preferred":false,"id":439427,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lerch, H.E.","contributorId":100371,"corporation":false,"usgs":true,"family":"Lerch","given":"H.E.","email":"","affiliations":[],"preferred":false,"id":439429,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Orem, W. H. 0000-0003-4990-0539","orcid":"https://orcid.org/0000-0003-4990-0539","contributorId":93084,"corporation":false,"usgs":true,"family":"Orem","given":"W. H.","affiliations":[],"preferred":false,"id":439428,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Pavlovic, N.","contributorId":13912,"corporation":false,"usgs":true,"family":"Pavlovic","given":"N.","email":"","affiliations":[],"preferred":false,"id":439425,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70032115,"text":"70032115 - 2007 - Habitat connectivity and ecosystem productivity: implications from a simple model.","interactions":[],"lastModifiedDate":"2018-10-17T08:31:19","indexId":"70032115","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":740,"text":"American Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Habitat connectivity and ecosystem productivity: implications from a simple model.","docAbstract":"

The import of resources (food, nutrients) sustains biological production and food webs in resource-limited habitats. Resource export from donor habitats subsidizes production in recipient habitats, but the ecosystem-scale consequences of resource translocation are generally unknown. Here, I use a nutrient-phytoplankton-zooplankton model to show how dispersive connectivity between a shallow autotrophic habitat and a deep heterotrophic pelagic habitat can amplify overall system production in metazoan food webs. This result derives from the finite capacity of suspension feeders to capture and assimilate food particles: excess primary production in closed autotrophic habitats cannot be assimilated by consumers; however, if excess phytoplankton production is exported to food-limited heterotrophic habitats, it can be assimilated by zooplankton to support additional secondary production. Transport of regenerated nutrients from heterotrophic to autotrophic habitats sustains higher system primary production. These simulation results imply that the ecosystem-scale efficiency of nutrient transformation into metazoan biomass can be constrained by the rate of resource exchange across habitats and that it is optimized when the transport rate matches the growth rate of primary producers. Slower transport (i.e., reduced connectivity) leads to nutrient limitation of primary production in autotrophic habitats and food limitation of secondary production in heterotrophic habitats. Habitat fragmentation can therefore impose energetic constraints on the carrying capacity of aquatic ecosystems. The outcomes of ecosystem restoration through habitat creation will be determined by both functions provided by newly created aquatic habitats and the rates of hydraulic connectivity between them.

","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"American Naturalist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1086/510258","issn":"15375323","usgsCitation":"Cloern, J.E., 2007, Habitat connectivity and ecosystem productivity: implications from a simple model.: American Naturalist, v. 169, no. 1, p. E22-E33, https://doi.org/10.1086/510258.","productDescription":"13 p.","startPage":"E22","endPage":"E33","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":242365,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214625,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1086/510258"}],"volume":"169","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2f04e4b0c8380cd5ca05","contributors":{"authors":[{"text":"Cloern, James E. 0000-0002-5880-6862 jecloern@usgs.gov","orcid":"https://orcid.org/0000-0002-5880-6862","contributorId":1488,"corporation":false,"usgs":true,"family":"Cloern","given":"James","email":"jecloern@usgs.gov","middleInitial":"E.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":434599,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70031840,"text":"70031840 - 2007 - Predicting seabed burial of cylinders by wave-induced scour: Application to the sandy inner shelf off Florida and Massachusetts","interactions":[],"lastModifiedDate":"2012-03-12T17:21:27","indexId":"70031840","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1941,"text":"IEEE Journal of Oceanic Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Predicting seabed burial of cylinders by wave-induced scour: Application to the sandy inner shelf off Florida and Massachusetts","docAbstract":"A simple parameterized model for wave-induced burial of mine-like cylinders as a function of grain-size, time-varying, wave orbital velocity and mine diameter was implemented and assessed against results from inert instrumented mines placed off the Indian Rocks Beach (IRB, FL), and off the Martha's Vineyard Coastal Observatory (MVCO, Edgartown, MA). The steady flow scour parameters provided by Whitehouse (1998) for self-settling cylinders worked well for predicting burial by depth below the ambient seabed for O (0.5 m) diameter mines in fine sand at both sites. By including or excluding scour pit infilling, a range of percent burial by surface area was predicted that was also consistent with observations. Rapid scour pit infilling was often seen at MVCO but never at IRB, suggesting that the environmental presence of fine sediment plays a key role in promoting infilling. Overprediction of mine scour in coarse sand was corrected by assuming a mine within a field of large ripples buries only until it generates no more turbulence than that produced by surrounding bedforms. The feasibility of using a regional wave model to predict mine burial in both hindcast and real-time forecast mode was tested using the National Oceanic and Atmospheric Administration (NOAA, Washington, DC) WaveWatch 3 (WW3) model. Hindcast waves were adequate for useful operational forcing of mine burial predictions, but five-day wave forecasts introduced large errors. This investigation was part of a larger effort to develop simple yet reliable predictions of mine burial suitable for addressing the operational needs of the U.S. Navy. ?? 2007 IEEE.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"IEEE Journal of Oceanic Engineering","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1109/JOE.2007.890958","issn":"03649059","usgsCitation":"Trembanis, A., Friedrichs, C.T., Richardson, M.D., Traykovski, P., Howd, P., Elmore, P., and Wever, T., 2007, Predicting seabed burial of cylinders by wave-induced scour: Application to the sandy inner shelf off Florida and Massachusetts: IEEE Journal of Oceanic Engineering, v. 32, no. 1, p. 167-183, https://doi.org/10.1109/JOE.2007.890958.","startPage":"167","endPage":"183","numberOfPages":"17","costCenters":[],"links":[{"id":214608,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1109/JOE.2007.890958"},{"id":242348,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"32","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a81c9e4b0c8380cd7b71d","contributors":{"authors":[{"text":"Trembanis, A.C.","contributorId":49611,"corporation":false,"usgs":true,"family":"Trembanis","given":"A.C.","affiliations":[],"preferred":false,"id":433371,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Friedrichs, Carl T.","contributorId":43989,"corporation":false,"usgs":false,"family":"Friedrichs","given":"Carl","email":"","middleInitial":"T.","affiliations":[{"id":6708,"text":"Virginia Institute of Marine Science","active":true,"usgs":false}],"preferred":false,"id":433370,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Richardson, M. D.","contributorId":88094,"corporation":false,"usgs":true,"family":"Richardson","given":"M.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":433373,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Traykovski, P.","contributorId":76484,"corporation":false,"usgs":true,"family":"Traykovski","given":"P.","affiliations":[],"preferred":false,"id":433372,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Howd, P.A.","contributorId":103793,"corporation":false,"usgs":true,"family":"Howd","given":"P.A.","email":"","affiliations":[],"preferred":false,"id":433375,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Elmore, P.A.","contributorId":100628,"corporation":false,"usgs":true,"family":"Elmore","given":"P.A.","email":"","affiliations":[],"preferred":false,"id":433374,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Wever, T.F.","contributorId":107104,"corporation":false,"usgs":true,"family":"Wever","given":"T.F.","email":"","affiliations":[],"preferred":false,"id":433376,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70030842,"text":"70030842 - 2007 - Talc-bearing serpentinite and the creeping section of the San Andreas fault","interactions":[],"lastModifiedDate":"2023-07-27T11:53:19.522246","indexId":"70030842","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2840,"text":"Nature","active":true,"publicationSubtype":{"id":10}},"title":"Talc-bearing serpentinite and the creeping section of the San Andreas fault","docAbstract":"

The section of the San Andreas fault located between Cholame Valley and San Juan Bautista in central California creeps at a rate as high as 28 mm yr-1 (ref. 1), and it is also the segment that yields the best evidence for being a weak fault embedded in a strong crust2,3,4,5. Serpentinized ultramafic rocks have been associated with creeping faults in central and northern California6,7,8, and serpentinite is commonly invoked as the cause of the creep and the low strength of this section of the San Andreas fault. However, the frictional strengths of serpentine minerals are too high to satisfy the limitations on fault strength, and these minerals also have the potential for unstable slip under some conditions9,10. Here we report the discovery of talc in cuttings of serpentinite collected from the probable active trace of the San Andreas fault that was intersected during drilling of the San Andreas Fault Observatory at Depth (SAFOD) main hole in 2005. We infer that the talc is forming as a result of the reaction of serpentine minerals with silica-saturated hydrothermal fluids that migrate up the fault zone, and the talc commonly occurs in sheared serpentinite. This discovery is significant, as the frictional strength of talc at elevated temperatures is sufficiently low to meet the constraints on the shear strength of the fault, and its inherently stable sliding behaviour is consistent with fault creep11. Talc may therefore provide the connection between serpentinite and creep in the San Andreas fault, if shear at depth can become localized along a talc-rich principal-slip surface within serpentinite entrained in the fault zone.

","language":"English","publisher":"Nature","doi":"10.1038/nature06064","issn":"00280836","usgsCitation":"Moore, D., and Rymer, M.J., 2007, Talc-bearing serpentinite and the creeping section of the San Andreas fault: Nature, v. 448, no. 7155, p. 795-797, https://doi.org/10.1038/nature06064.","productDescription":"3 p.","startPage":"795","endPage":"797","numberOfPages":"3","costCenters":[],"links":[{"id":238861,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"San Andreas fault","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -122.69928798093744,\n 38.14745722381619\n ],\n [\n -122.69928798093744,\n 35.15260149693877\n ],\n [\n -118.74590606550669,\n 35.15260149693877\n ],\n [\n -118.74590606550669,\n 38.14745722381619\n ],\n [\n -122.69928798093744,\n 38.14745722381619\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"448","issue":"7155","noUsgsAuthors":false,"publicationDate":"2007-08-16","publicationStatus":"PW","scienceBaseUri":"505ba3c3e4b08c986b31fe97","contributors":{"authors":[{"text":"Moore, Diane E. 0000-0002-8641-1075","orcid":"https://orcid.org/0000-0002-8641-1075","contributorId":106496,"corporation":false,"usgs":true,"family":"Moore","given":"Diane E.","affiliations":[],"preferred":false,"id":428907,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rymer, M. J.","contributorId":90694,"corporation":false,"usgs":true,"family":"Rymer","given":"M.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":428906,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70161105,"text":"70161105 - 2007 - Chromosome painting in the manatee supports Afrotheria and Paenungulata","interactions":[],"lastModifiedDate":"2016-01-05T10:20:31","indexId":"70161105","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":955,"text":"BMC Evolutionary Biology","active":true,"publicationSubtype":{"id":10}},"title":"Chromosome painting in the manatee supports Afrotheria and Paenungulata","docAbstract":"
\n

Background

\n

Sirenia (manatees, dugongs and Stellar's sea cow) have no evolutionary relationship with other marine mammals, despite similarities in adaptations and body shape. Recent phylogenomic results place Sirenia in Afrotheria and with elephants and rock hyraxes in Paenungulata. Sirenia and Hyracoidea are the two afrotherian orders as yet unstudied by comparative molecular cytogenetics. Here we report on the chromosome painting of the Florida manatee.

\n
\n
\n

Results

\n

The human autosomal and X chromosome paints delimited a total of 44 homologous segments in the manatee genome. The synteny of nine of the 22 human autosomal chromosomes (4, 5, 6, 9, 11, 14, 17, 18 and 20) and the X chromosome were found intact in the manatee. The syntenies of other human chromosomes were disrupted in the manatee genome into two to five segments. The hybridization pattern revealed that 20 (15 unique) associations of human chromosome segments are found in the manatee genome: 1/15, 1/19, 2/3 (twice), 3/7 (twice), 3/13, 3/21, 5/21, 7/16, 8/22, 10/12 (twice), 11/20, 12/22 (three times), 14/15, 16/19 and 18/19.

\n
\n
\n

Conclusion

\n

There are five derived chromosome traits that strongly link elephants with manatees in Tethytheria and give implicit support to Paenungulata: the associations 2/3, 3/13, 8/22, 18/19 and the loss of the ancestral eutherian 4/8 association. It would be useful to test these conclusions with chromosome painting in hyraxes. The manatee chromosome painting data confirm that the associations 1/19 and 5/21 phylogenetically link afrotherian species and show that Afrotheria is a natural clade. The association 10/12/22 is also ubiquitous in Afrotheria (clade I), present in Laurasiatheria (clade IV), only partially present in Xenarthra (10/12, clade II) and absent in Euarchontoglires (clade III). If Afrotheria is basal to eutherians, this association could be part of the ancestral eutherian karyotype. If afrotherians are not at the root of the eutherian tree, then the 10/12/22 association could be one of a suite of derived associations linking afrotherian taxa.

\n
","language":"English","publisher":"BioMed Central","doi":"10.1186/1471-2148-7-6","usgsCitation":"Kellogg, M.E., Burkett, S., Dennis, T.R., Stone, G., Gray, B.A., McGuire, P.M., Zori, R.T., and Stanyon, R., 2007, Chromosome painting in the manatee supports Afrotheria and Paenungulata: BMC Evolutionary Biology, v. 7, no. 6, 7 p., https://doi.org/10.1186/1471-2148-7-6.","productDescription":"7 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"links":[{"id":476938,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1186/1471-2148-7-6","text":"Publisher Index Page"},{"id":313362,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"7","issue":"6","noUsgsAuthors":false,"publicationDate":"2007-01-23","publicationStatus":"PW","scienceBaseUri":"568cf73ee4b0e7a44bc0f13d","contributors":{"authors":[{"text":"Kellogg, Margaret E.","contributorId":151206,"corporation":false,"usgs":false,"family":"Kellogg","given":"Margaret","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":584900,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Burkett, Sandra","contributorId":151207,"corporation":false,"usgs":false,"family":"Burkett","given":"Sandra","email":"","affiliations":[],"preferred":false,"id":584901,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dennis, Thomas R.","contributorId":151208,"corporation":false,"usgs":false,"family":"Dennis","given":"Thomas","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":584902,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stone, Gary","contributorId":151223,"corporation":false,"usgs":false,"family":"Stone","given":"Gary","email":"","affiliations":[],"preferred":false,"id":584903,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Gray, Brian A.","contributorId":47226,"corporation":false,"usgs":true,"family":"Gray","given":"Brian","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":584904,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"McGuire, Peter M.","contributorId":45816,"corporation":false,"usgs":true,"family":"McGuire","given":"Peter","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":584905,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Zori, Roberto T.","contributorId":71515,"corporation":false,"usgs":true,"family":"Zori","given":"Roberto","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":584906,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Stanyon, Roscoe","contributorId":151238,"corporation":false,"usgs":false,"family":"Stanyon","given":"Roscoe","email":"","affiliations":[],"preferred":false,"id":584907,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70030850,"text":"70030850 - 2007 - The oxygen-18 isotope approach for measuring aquatic metabolism in high-productivity waters","interactions":[],"lastModifiedDate":"2018-10-16T09:13:56","indexId":"70030850","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2620,"text":"Limnology and Oceanography","active":true,"publicationSubtype":{"id":10}},"title":"The oxygen-18 isotope approach for measuring aquatic metabolism in high-productivity waters","docAbstract":"

We examined the utility of δ18O2 measurements in estimating gross primary production (P), community respiration (R), and net metabolism (P : R) through diel cycles in a productive agricultural stream located in the midwestern U.S.A. Large diel swings in O2(±200 µmol L−1) were accompanied by large diel variation in δ18O2 (±10‰). Simultaneous gas transfer measurements and laboratory‐derived isotopic fractionation factors for O2during respiration (αr) were used in conjunction with the diel monitoring of O2 and δ18O2to calculate P, R, and P :R using three independent isotope‐based methods. These estimates were compared to each other and against the traditional “open‐channel diel O2‐change” technique that lacked δ18O2. A principal advantage of the δ18O2 measurements was quantification of diel variation in R, which increased by up to 30% during the day, and the diel pattern in R was variable and not necessarily predictable from assumed temperature effects on R. The P, R, and P :R estimates calculated using the isotope‐based approaches showed high sensitivity to the assumed system fractionation factor (αr). The optimum modeled ar values (0.986‐0.989) were roughly consistent with the laboratory‐derived values, but larger (i.e., less fractionation) than αr values typically reported for enzyme‐limited respiration in open water environments. Because of large diel variation in O2, P :R could not be estimated by directly applying the typical steady‐state solution to the O2 and 18O‐O2 mass balance equations in the absence of gas transfer data. Instead, our results indicate that a modified steady‐state solution (the daily mean value approach) could be used with time‐averaged O2 and δ18O2 measurements to calculate P :R independent of gas transfer. This approach was applicable under specifically defined, net heterotrophic conditions. The diel cycle of increasing daytime R and decreasing nighttime R was only partially explained by temperature variation, but could be consistent with the diel production/consumption of labile dissolved organic carbon from photosynthesis.

","language":"English","publisher":"ASLO","doi":"10.4319/lo.2007.52.4.1439","issn":"00243590","usgsCitation":"Tobias, C., Bohlke, J.K., and Harvey, J.W., 2007, The oxygen-18 isotope approach for measuring aquatic metabolism in high-productivity waters: Limnology and Oceanography, v. 52, no. 4, p. 1439-1453, https://doi.org/10.4319/lo.2007.52.4.1439.","productDescription":"15 p.","startPage":"1439","endPage":"1453","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":477139,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.4319/lo.2007.52.4.1439","text":"Publisher Index Page"},{"id":238996,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"52","issue":"4","noUsgsAuthors":false,"publicationDate":"2007-07-31","publicationStatus":"PW","scienceBaseUri":"505bae7ae4b08c986b324114","contributors":{"authors":[{"text":"Tobias, Craig R.","contributorId":23410,"corporation":false,"usgs":false,"family":"Tobias","given":"Craig R.","affiliations":[{"id":32398,"text":"University of North Carolina Wilmington","active":true,"usgs":false}],"preferred":false,"id":428934,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bohlke, John Karl 0000-0001-5693-6455 jkbohlke@usgs.gov","orcid":"https://orcid.org/0000-0001-5693-6455","contributorId":127841,"corporation":false,"usgs":true,"family":"Bohlke","given":"John","email":"jkbohlke@usgs.gov","middleInitial":"Karl","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":false,"id":428936,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Harvey, Judson W. 0000-0002-2654-9873 jwharvey@usgs.gov","orcid":"https://orcid.org/0000-0002-2654-9873","contributorId":1796,"corporation":false,"usgs":true,"family":"Harvey","given":"Judson","email":"jwharvey@usgs.gov","middleInitial":"W.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":428935,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70182107,"text":"70182107 - 2007 - Near-shore and offshore habitat use by endangered, juvenile Lost River and shortnose suckers in Upper Klamath Lake, Oregon. Annual report 2004","interactions":[],"lastModifiedDate":"2017-02-16T11:33:13","indexId":"70182107","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"title":"Near-shore and offshore habitat use by endangered, juvenile Lost River and shortnose suckers in Upper Klamath Lake, Oregon. Annual report 2004","docAbstract":"

No abstract available 

","language":"English","publisher":"U.S. Bureau of Reclamation","usgsCitation":"Hendrixson, H., Herring, B., Burdick, S.M., and VanderKooi, S.P., 2007, Near-shore and offshore habitat use by endangered, juvenile Lost River and shortnose suckers in Upper Klamath Lake, Oregon. Annual report 2004.","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":335707,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58a6c83ae4b025c4642862be","contributors":{"authors":[{"text":"Hendrixson, H.A.","contributorId":73424,"corporation":false,"usgs":true,"family":"Hendrixson","given":"H.A.","email":"","affiliations":[],"preferred":false,"id":669622,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Herring, B.L","contributorId":177894,"corporation":false,"usgs":false,"family":"Herring","given":"B.L","email":"","affiliations":[],"preferred":false,"id":669623,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Burdick, S. M.","contributorId":78043,"corporation":false,"usgs":true,"family":"Burdick","given":"S.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":669624,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"VanderKooi, S. P.","contributorId":12587,"corporation":false,"usgs":true,"family":"VanderKooi","given":"S.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":669625,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70030010,"text":"70030010 - 2007 - Variation in winter diet of southern Beaufort Sea polar bears inferred from stable isotope analysis","interactions":[],"lastModifiedDate":"2016-05-31T15:50:29","indexId":"70030010","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1176,"text":"Canadian Journal of Zoology","active":true,"publicationSubtype":{"id":10}},"title":"Variation in winter diet of southern Beaufort Sea polar bears inferred from stable isotope analysis","docAbstract":"

Ringed seals (Phoca hispida Schreber, 1775 = Pusa hispida (Schreber, 1775)) and bearded seals (Erignathus barbatus (Erxleben, 1777)) represent the majority of the polar bear (Ursus maritimus Phipps, 1774) annual diet. However, remains of lower trophic level bowhead whales (Balaena mysticetus L., 1758) are available in the southern Beaufort Sea and their dietary contribution to polar bears has been unknown. We used stable isotope (13C/12C, δ13C, 15N/14N, and δ15N) analysis to determine the diet composition of polar bears sampled along Alaska’s Beaufort Sea coast in March and April 2003 and 2004. The mean δ15N values of polar bear blood cells were 19.5‰ (SD = 0.7‰) in 2003 and 19.9‰ (SD = 0.7‰) in 2004. Mixing models indicated bowhead whales composed 11%–26% (95% CI) of the diets of sampled polar bears in 2003, and 0%–14% (95% CI) in 2004. This suggests significant variability in the proportion of lower trophic level prey in polar bear diets among individuals and between years. Polar bears depend on sea ice for hunting seals, and the temporal and spatial availabilities of sea ice are projected to decline. Consumption of low trophic level foods documented here suggests bears may increasingly scavenge such foods in the future.

","language":"English","publisher":"NRC Research Press","doi":"10.1139/Z07-036","issn":"00084301","usgsCitation":"Bentzen, T., Follmann, E.H., Amstrup, S.C., York, G., Wooller, M.J., and O'Hara, T., 2007, Variation in winter diet of southern Beaufort Sea polar bears inferred from stable isotope analysis: Canadian Journal of Zoology, v. 85, no. 5, p. 596-608, https://doi.org/10.1139/Z07-036.","productDescription":"13 p.","startPage":"596","endPage":"608","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":240363,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212819,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/Z07-036"}],"volume":"85","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc16ce4b08c986b32a577","contributors":{"authors":[{"text":"Bentzen, T.W.","contributorId":97324,"corporation":false,"usgs":true,"family":"Bentzen","given":"T.W.","email":"","affiliations":[],"preferred":false,"id":425278,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Follmann, Erich H.","contributorId":24828,"corporation":false,"usgs":false,"family":"Follmann","given":"Erich","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":425275,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Amstrup, Steven C.","contributorId":67034,"corporation":false,"usgs":false,"family":"Amstrup","given":"Steven","email":"","middleInitial":"C.","affiliations":[{"id":13182,"text":"Polar Bears International","active":true,"usgs":false}],"preferred":false,"id":425277,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"York, G.S.","contributorId":103857,"corporation":false,"usgs":true,"family":"York","given":"G.S.","email":"","affiliations":[],"preferred":false,"id":425279,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wooller, M. J.","contributorId":17049,"corporation":false,"usgs":true,"family":"Wooller","given":"M.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":425274,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"O'Hara, T. M.","contributorId":64610,"corporation":false,"usgs":true,"family":"O'Hara","given":"T. M.","affiliations":[],"preferred":false,"id":425276,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70030151,"text":"70030151 - 2007 - Lithium contents and isotopic compositions of ferromanganese deposits from the global ocean","interactions":[],"lastModifiedDate":"2023-08-04T11:30:12.124519","indexId":"70030151","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1371,"text":"Deep-Sea Research Part II: Topical Studies in Oceanography","active":true,"publicationSubtype":{"id":10}},"title":"Lithium contents and isotopic compositions of ferromanganese deposits from the global ocean","docAbstract":"

To test the feasibility of using lithium isotopes in marine ferromanganese deposits as an indicator of paleoceanographic conditions and seawater composition, we analyzed samples from a variety of tectonic environments in the global ocean. Hydrogenetic, hydrothermal, mixed hydrogenetic–hydrothermal, and hydrogenetic–diagenetic samples were subjected to a two-step leaching and dissolution procedure to extract first the loosely bound Li and then the more tightly bound Li in the Mn oxide and Fe oxyhydroxide. Total leachable Li contents vary from <1 ppm in hydrogenetic crusts to 1422 ppm (up to 1188 ppm measured here) in hydrothermal deposits. Hydrated Li ions in seawater and hydrothermal fluids are preferentially sorbed on the negatively charged surface of MnO2 by coulombic force. Hence, the abundant Li in hydrothermal deposits is mainly associated with the dominant phase, MnO2. The surface of amorphous FeOOH holds a slightly positive charge and attracts little Li, as demonstrated by data for hydrothermal Fe oxyhydroxide. Loosely sorbed Li in both hydrogenetic crusts and hydrothermal deposits exhibit Li isotopic compositions that resemble that of modern seawater. We infer that the hydrothermally derived Li scavenged onto the surface of MnO2 freely exchanged with ambient seawater, thereby losing its original isotopic signature. Li in the tightly bound sites is always isotopically lighter than that in the loosely bound fraction, suggesting that the isotopic fractionation occurred during formation of chemical bonds in the oxide and oxyhydroxide structures. Sr isotopes also show evidence of re-equilibration with seawater after deposition. Because of their mobility, Li and Sr in the ferromanganese crusts do not faithfully record secular variations in the isotopic compositions of seawater. However, Li content can be a useful proxy for the hydrothermal history of ocean basins. Based on the Li concentrations of the globally distributed hydrogenetic and hydrothermal samples, we estimate a scavenging flux of Li that is insignificant compared to the hydrothermal flux and river input to the ocean.

","language":"English","publisher":"Elsevier","doi":"10.1016/j.dsr2.2007.04.003","issn":"09670645","usgsCitation":"Chan, L., and Hein, J., 2007, Lithium contents and isotopic compositions of ferromanganese deposits from the global ocean: Deep-Sea Research Part II: Topical Studies in Oceanography, v. 54, no. 11-13, p. 1147-1162, https://doi.org/10.1016/j.dsr2.2007.04.003.","productDescription":"16 p.","startPage":"1147","endPage":"1162","numberOfPages":"16","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":240508,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"54","issue":"11-13","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4823e4b0c8380cd67c39","contributors":{"authors":[{"text":"Chan, L.-H.","contributorId":90939,"corporation":false,"usgs":true,"family":"Chan","given":"L.-H.","email":"","affiliations":[],"preferred":false,"id":425912,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hein, J.R. 0000-0002-5321-899X","orcid":"https://orcid.org/0000-0002-5321-899X","contributorId":61429,"corporation":false,"usgs":true,"family":"Hein","given":"J.R.","affiliations":[],"preferred":false,"id":425911,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70030138,"text":"70030138 - 2007 - High-resolution sequence stratigraphy of lower Paleozoic sheet sandstones in central North America: The role of special conditions of cratonic interiors in development of stratal architecture","interactions":[],"lastModifiedDate":"2012-03-12T17:21:06","indexId":"70030138","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","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":"High-resolution sequence stratigraphy of lower Paleozoic sheet sandstones in central North America: The role of special conditions of cratonic interiors in development of stratal architecture","docAbstract":"Well-known difficulties in applying sequence stratigraphic concepts to deposits that accumulated across slowly subsiding cratonic interior regions have limited our ability to interpret the history of continental-scale tectonism, oceanographic dynamics of epeiric seas, and eustasy. We used a multi-disciplinary approach to construct a high-resolution stratigraphic framework for lower Paleozoic strata in the cratonic interior of North America. Within this framework, these strata proved readily amenable to modern sequence stratigraphic techniques that were formulated based on successions along passive margins and in foreland basins, settings markedly different from the cratonic interior. Parasequences, parasequence stacking patterns, systems tracts, maximum flooding intervals, and sequence-bounding unconformities can be confidently recognized in the cratonic interior using mostly standard criteria for identification. The similarity of cratonic interior and foreland basin successions in size, geometry, constituent facies, and local stacking patterns of nearshore parasequences is especially striking. This similarity indicates that the fundamental processes that establish shoreface morphology and determine the stratal expression of retreat and progradation were likewise generally the same, despite marked differences in tectonism, physiography, and bathymetry between the two settings. Our results do not support the widespread perception that Paleozoic cratonic interior successions are so anomalous in stratal geometries, and constitute such a poor record of time, that they are poorly suited for modern sequence stratigraphic analyses. The particular arrangement of stratal elements in the cratonic interior succession we studied is no more anomalous or enigmatic than the variability in architecture that sets all sedimentary successions apart from one another. Thus, Paleozoic strata of the cratonic interior are most appropriately considered as a package that belongs in a continuum of variable stratigraphic packages reflecting variable controls such as subsidence and shelf physiography. Special conditions of exceptionally slow subsidence rate, shallow bathymetry, and nearly flat regional shelf gradient are manifest mostly by the presence of individual systems tracts of relatively long duration that extend for much greater distances across depositional strike than those that characterize successions deposited in more dynamic tectonic and physiographic settings. These results suggest that if other cratonic interior successions are as anomalous as reported, a low sediment supply may have played a primary role in development of their apparently condensed stratal architecture. The results also lead us to suggest that a nonvegetated lower Paleozoic landscape played a relatively insignificant role in the development of what are commonly perceived to be enigmatic stratigraphic features of sheet sandstones, particularly their widespread yet thin geometry, and a scarcity of shale and siltstone. ?? 2007 Geological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geological Society of America Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/B26117.1","issn":"00167606","usgsCitation":"Runkel, A.C., Miller, J., McKay, R., Palmer, A.R., and Taylor, J.F., 2007, High-resolution sequence stratigraphy of lower Paleozoic sheet sandstones in central North America: The role of special conditions of cratonic interiors in development of stratal architecture: Geological Society of America Bulletin, v. 119, no. 7-8, p. 860-881, https://doi.org/10.1130/B26117.1.","startPage":"860","endPage":"881","numberOfPages":"22","costCenters":[],"links":[{"id":240300,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212764,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/B26117.1"}],"volume":"119","issue":"7-8","noUsgsAuthors":false,"publicationDate":"2007-07-16","publicationStatus":"PW","scienceBaseUri":"505a3134e4b0c8380cd5dd10","contributors":{"authors":[{"text":"Runkel, Anthony C.","contributorId":63186,"corporation":false,"usgs":true,"family":"Runkel","given":"Anthony","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":425861,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, J.F.","contributorId":29830,"corporation":false,"usgs":true,"family":"Miller","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":425859,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McKay, R.M.","contributorId":91238,"corporation":false,"usgs":true,"family":"McKay","given":"R.M.","email":"","affiliations":[],"preferred":false,"id":425863,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Palmer, A. R.","contributorId":41819,"corporation":false,"usgs":true,"family":"Palmer","given":"A.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":425860,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Taylor, John F.","contributorId":80890,"corporation":false,"usgs":false,"family":"Taylor","given":"John","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":425862,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70030141,"text":"70030141 - 2007 - Cosmogenic 10Be and 36Cl geochronology of offset alluvial fans along the northern Death Valley fault zone: Implications for transient strain in the eastern California shear zone","interactions":[],"lastModifiedDate":"2012-03-12T17:21:05","indexId":"70030141","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","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":"Cosmogenic 10Be and 36Cl geochronology of offset alluvial fans along the northern Death Valley fault zone: Implications for transient strain in the eastern California shear zone","docAbstract":"The northern Death Valley fault zone (NDVFZ) has long been recognized as a major right-lateral strike-slip fault in the eastern California shear zone (ECSZ). However, its geologic slip rate has been difficult to determine. Using high-resolution digital topographic imagery and terrestrial cosmogenic nuclide dating, we present the first geochronologically determined slip rate for the NDVFZ. Our study focuses on the Red Wall Canyon alluvial fan, which exposes clean dextral offsets of seven channels. Analysis of airborne laser swath mapping data indicates ???297 ?? 9 m of right-lateral displacement on the fault system since the late Pleistocene. In situ terrestrial cosmogenic 10Be and 36C1 geochronology was used to date the Red Wall Canyon fan and a second, correlative fan also cut by the fault. Beryllium 10 dates from large cobbles and boulders provide a maximum age of 70 +22/-20 ka for the offset landforms. The minimum age of the alluvial fan deposits based on 36Cl depth profiles is 63 ?? 8 ka. Combining the offset measurement with the cosmogenic 10Be date yields a geologic fault slip rate of 4.2 +1.9/-1.1 mm yr-1, whereas the 36Cl data indicate 4.7 +0.9/-0.6 mm yr-1 of slip. Summing these slip rates with known rates on the Owens Valley, Hunter Mountain, and Stateline faults at similar latitudes suggests a total geologic slip rate across the northern ECSZ of ???8.5 to 10 mm yr-1. This rate is commensurate with the overall geodetic rate and implies that the apparent discrepancy between geologic and geodetic data observed in the Mojave section of the ECSZ does not extend north of the Garlock fault. Although the overall geodetic rates are similar, the best estimates based on geology predict higher strain rates in the eastern part of the ECSZ than to the west, whereas the observed geodetic strain is relatively constant. Copyright 2007 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":"10.1029/2006JB004350","issn":"01480227","usgsCitation":"Frankel, K., Brantley, K., Dolan, J., Finkel, R., Klinger, R., Knott, J., Machette, M.N., Owen, L., Phillips, F.M., Slate, J.L., and Wernicke, B., 2007, Cosmogenic 10Be and 36Cl geochronology of offset alluvial fans along the northern Death Valley fault zone: Implications for transient strain in the eastern California shear zone: Journal of Geophysical Research B: Solid Earth, v. 112, no. 6, https://doi.org/10.1029/2006JB004350.","costCenters":[],"links":[{"id":476955,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2006jb004350","text":"Publisher Index Page"},{"id":212823,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2006JB004350"},{"id":240370,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"112","issue":"6","noUsgsAuthors":false,"publicationDate":"2007-06-13","publicationStatus":"PW","scienceBaseUri":"5059fc5fe4b0c8380cd4e25c","contributors":{"authors":[{"text":"Frankel, K.L.","contributorId":17050,"corporation":false,"usgs":true,"family":"Frankel","given":"K.L.","email":"","affiliations":[],"preferred":false,"id":425872,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brantley, K.S.","contributorId":9070,"corporation":false,"usgs":true,"family":"Brantley","given":"K.S.","email":"","affiliations":[],"preferred":false,"id":425870,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dolan, J.F.","contributorId":64813,"corporation":false,"usgs":true,"family":"Dolan","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":425876,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Finkel, R.C.","contributorId":79677,"corporation":false,"usgs":true,"family":"Finkel","given":"R.C.","email":"","affiliations":[],"preferred":false,"id":425878,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Klinger, R.E.","contributorId":13807,"corporation":false,"usgs":true,"family":"Klinger","given":"R.E.","email":"","affiliations":[],"preferred":false,"id":425871,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Knott, J.R.","contributorId":26847,"corporation":false,"usgs":true,"family":"Knott","given":"J.R.","affiliations":[],"preferred":false,"id":425875,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Machette, M. N.","contributorId":19561,"corporation":false,"usgs":true,"family":"Machette","given":"M.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":425873,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Owen, L.A.","contributorId":94836,"corporation":false,"usgs":true,"family":"Owen","given":"L.A.","email":"","affiliations":[],"preferred":false,"id":425879,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Phillips, F. M.","contributorId":24493,"corporation":false,"usgs":true,"family":"Phillips","given":"F.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":425874,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Slate, J. L.","contributorId":97039,"corporation":false,"usgs":true,"family":"Slate","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":425880,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Wernicke, B.P.","contributorId":74957,"corporation":false,"usgs":true,"family":"Wernicke","given":"B.P.","email":"","affiliations":[],"preferred":false,"id":425877,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}} ,{"id":70029775,"text":"70029775 - 2007 - Modern foraminiferal facies in a subtropical estuarine channel, Bertioga, São Paulo, Brazil","interactions":[],"lastModifiedDate":"2013-03-24T11:54:30","indexId":"70029775","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2294,"text":"Journal of Foraminiferal Research","active":true,"publicationSubtype":{"id":10}},"title":"Modern foraminiferal facies in a subtropical estuarine channel, Bertioga, São Paulo, Brazil","docAbstract":"Numerical analyses of modern foraminiferal abundance and environmental data from the Bertioga Channel (Sa??o Paulo, Brazil) reveal multiple biofacies within an overall paralic setting. Despite its fisheries, mariculture and attraction to tourists, the environmental state of Bertioga Channel remains poorly studied. The present investigation is an attempt to partly fill this gap; the parameters examined include depth, salinity, temperature, organic carbon, sulfur content and bottom sediment type. Muddy sediments with high organic carbon content derived from land drainage are found in the inner parts of the channel, whereas sandy sediment dominates the areas adjacent to the Atlantic Ocean. In the eastern entrance to the channel, sandy sediment contain species of Rotaliida from Facies 1 (including Elphidium discoidale, Elphidium poeyanum, Hanzawaia boueana, Pararotalia cananeiaensis and Nonionella atlantica), reflecting normal marine salinity. Sediments with high percentages of silt and clay in polyhaline and eurybaline environments of the eastern part and Itapanhau?? River contain Facies 2, which includes Ammonia beccarii and Pararotalia cananeiaensis. In the western entrance and central, western and eastern parts, where salinities vary from 18 to 30 psu and the sediments contain both low and high organic carbon, the foraminifera from Facies 3 are dominated by Quinqueloculina milletti, Arenoparrella mexicana, Pararotalia cananeiaensis, Ammonia beccarii, Buliminella elegantissima, Elphidium sp., Elphidium excavatum, Elphidium gunteri and Elphidium poeyanum. In mesohaline and polyhaline waters of the central part, the organic-carbon-rich silt and clay contain Facies 4, which includes Ammonia beccarii, Pararotalia cananeiaensis, Elphidium excavatum and Elphidium sp. Most of organic-carbon-enriched, silty-clay substrates that are subject to the highest fresh-water discharge and high bottom temperatures support two different assemblages: one of mostly Rotaliina and the other mostly of Textulariida (Facies 5 and 6). Facies 5 includes Ammonia beecarii, Elphidium excavatum, Arenoparrella mexicana, Haplophragmoides wilberti, Siphotrochammina lobata, Trochammina inflata and Trochammina sp., all of which are typical of mesohaline sites (mainly Crumau?? and Trindade rivers), and Facies 6 includes Bolivina sp., Ammoastuta salsa, Arenoparrella mexicana, Haplophragmoides wilberti and Trochammina sp., all of which are typical of oligohaline and mesohaline mangrove fringes. The foraminiferal species from the present study are frequently found in paralic environments in Brazil, western Africa and other estuaries around the world.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Foraminiferal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2113/gsjfr.37.3.234","issn":"00961191","usgsCitation":"Eichler, P., Eichler, B., De Miranda, L.B., and Rodrigues, A., 2007, Modern foraminiferal facies in a subtropical estuarine channel, Bertioga, São Paulo, Brazil: Journal of Foraminiferal Research, v. 37, no. 3, p. 234-247, https://doi.org/10.2113/gsjfr.37.3.234.","startPage":"234","endPage":"247","numberOfPages":"14","costCenters":[],"links":[{"id":487619,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://dx.doi.org/10.2113/gsjfr.37.3.234","text":"External Repository"},{"id":212861,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2113/gsjfr.37.3.234"},{"id":240418,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"37","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5c95e4b0c8380cd6fdd6","contributors":{"authors":[{"text":"Eichler, P.P.B.","contributorId":88155,"corporation":false,"usgs":true,"family":"Eichler","given":"P.P.B.","email":"","affiliations":[],"preferred":false,"id":424240,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Eichler, B.B.","contributorId":29219,"corporation":false,"usgs":true,"family":"Eichler","given":"B.B.","email":"","affiliations":[],"preferred":false,"id":424239,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"De Miranda, L. B.","contributorId":28073,"corporation":false,"usgs":true,"family":"De Miranda","given":"L.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":424238,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rodrigues, A.R.","contributorId":25365,"corporation":false,"usgs":true,"family":"Rodrigues","given":"A.R.","email":"","affiliations":[],"preferred":false,"id":424237,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70171497,"text":"70171497 - 2007 - Potential ecotoxicological significance of elevated concentrations of strontium in eggshells of passerine birds","interactions":[],"lastModifiedDate":"2016-06-01T16:00:47","indexId":"70171497","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1318,"text":"Condor","active":true,"publicationSubtype":{"id":10}},"title":"Potential ecotoxicological significance of elevated concentrations of strontium in eggshells of passerine birds","docAbstract":"

We investigated the occurrence and potential ecotoxicological significance of elevated concentrations of strontium (Sr) in eggshells of nine passerine birds from four regions in Arizona. Concentrations of Sr in eggshells ranged from 70 to 1360 µg g−1 dry weight (overall mean  =  684 ± 345 SD µg g−1 dw) for the four regions. 23% of the eggshells had Sr concentrations greater than 1000 µg g−1 dw. To our knowledge, these are among the highest levels of Sr that have been reported in bird eggshells in North America. Of the nine species, Brown-headed Cowbirds (Molothrus ater) had the greatest concentrations of Sr. There was a significant positive correlation between Sr and calcium (Ca), and between barium (Ba) and Ca. Ca, Sr, and Ba interact with each other and can exert similar chemical and pharmacological effects. Mean (n ≥ 3) eggshell∶egg ratios for Sr varied with species and ranged from 6.1∶1 to 40.2∶1; ratios for individual eggs reached 92.7∶1. Mean Sr/Ca values ranged from 1.3 × 10−3 to 3.0 × 10−3 and mean eggshell thickness ranged from 83 ± 6 to 120 ± 9 µm for all species. Eggshell thickness was not significantly correlated with Sr for any species but tended to increase with Sr concentrations. We postulate that high concentrations of Sr in the shell could affect later-stage embryos by possible interference with Ca metabolism and bone growth, resulting in reduced hatching success and potential minor beak deformities.

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2007 - Variable role of aquatic macroinvertebrates in initial breakdown of seasonal leaf litter inputs to a cold-desert river","interactions":[],"lastModifiedDate":"2012-03-12T17:21:10","indexId":"70030143","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","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":"Variable role of aquatic macroinvertebrates in initial breakdown of seasonal leaf litter inputs to a cold-desert river","docAbstract":"We used coarse-mesh and fine-mesh leafpacks to examine the importance of aquatic macroinvertebrates in the breakdown of floodplain tree leaf litter that seasonally entered a sand-bedded reach of the sixth-order Yampa River in semiarid Colorado. Leafpacks were positioned off the easily mobilized channel bed, mimicking litter trapped in debris piles. Organic matter (OM) loss was fastest for leaves collected from the floodplain and placed in the river in spring (k = 0.029/day) and slowest for leaves collected and placed in the river in winter (0.006/day). Macroinvertebrates were most abundant in winter and spring leaves, but seemed important to processing only in spring, when exclusion by fine mesh reduced OM loss by 25% and nitrogen loss by 65% in spring leaves. Macroinvertebrates seemed to have little role in processing of autumn, winter, or summer leaves over the 50-day to 104-day monitoring periods. Desiccation during bouts of low discharge and sediment deposition on leaves limited invertebrate processing in summer and autumn, whereas processing of winter leaves, which supported relatively large numbers of shredders, might have been restricted by ice formation and low water temperatures. These results were consistent with the concept that microbial processing dominates in higher-order rivers, but suggested that macroinvertebrate processing can be locally important in higher-order desert rivers in seasons or years with favorable discharge and water quality conditions.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Southwestern Naturalist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1894/0038-4909(2007)52[219:VROAMI]2.0.CO;2","issn":"00384909","usgsCitation":"Nelson, S.M., and Andersen, D., 2007, Variable role of aquatic macroinvertebrates in initial breakdown of seasonal leaf litter inputs to a cold-desert river: Southwestern Naturalist, v. 52, no. 2, p. 219-228, https://doi.org/10.1894/0038-4909(2007)52[219:VROAMI]2.0.CO;2.","startPage":"219","endPage":"228","numberOfPages":"10","costCenters":[],"links":[{"id":477098,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1894/0038-4909(2007)52[219:vroami]2.0.co;2","text":"Publisher Index Page"},{"id":240406,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212852,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1894/0038-4909(2007)52[219:VROAMI]2.0.CO;2"}],"volume":"52","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc147e4b08c986b32a4ec","contributors":{"authors":[{"text":"Nelson, S. M.","contributorId":81853,"corporation":false,"usgs":false,"family":"Nelson","given":"S.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":425888,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Andersen, D.C.","contributorId":19119,"corporation":false,"usgs":true,"family":"Andersen","given":"D.C.","email":"","affiliations":[],"preferred":false,"id":425887,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70030213,"text":"70030213 - 2007 - Evaluation of grassland dynamics in the northern-tibet plateau of china using remote sensing and climate data","interactions":[],"lastModifiedDate":"2015-10-15T13:40:38","indexId":"70030213","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3380,"text":"Sensors","active":true,"publicationSubtype":{"id":10}},"title":"Evaluation of grassland dynamics in the northern-tibet plateau of china using remote sensing and climate data","docAbstract":"

The grassland ecosystem in the Northern-Tibet Plateau (NTP) of China is very sensitive to weather and climate conditions of the region. In this study, we investigate the spatial and temporal variations of the grassland ecosystem in the NTP using the NOAA/AVHRR ten-day maximum NDVI composite data of 1981-2001. The relationships among Vegetation Peak-Normalized Difference Vegetation Index (VP-NDVI) and climate variables were quantified for six counties within the NTP. The notable and uneven alterations of the grassland in response to variation of climate and human impact in the NTP were revealed. Over the last two decades of the 20th century, the maximum greenness of the grassland has exhibited high increase, slight increase, no-change, slight decrease and high decrease, each occupies 0.27%, 8.71%, 77.27%, 13.06% and 0.69% of the total area of the NTP, respectively. A remarkable increase (decrease) in VP-NDVI occurred in the central-eastern (eastern) NTP whereas little change was observed in the western and northwestern NTP. A strong negative relationship between VP-NDVI and ET 0 was found in sub-frigid, semi-arid and frigid- arid regions of the NTP (i.e., Nakchu, Shantsa, Palgon and Amdo counties), suggesting that the ETo is one limiting factor affecting grassland degradation. In the temperate-humid, sub-frigid and sub-humid regions of the NTP (Chali and Sokshan counties), a significant inverse correlation between VP-NDVI and population indicates that human activities have adversely affected the grassland condition as was previously reported in the literature. Results from this research suggest that the alteration and degradation of the grassland in the lower altitude of the NTP over the last two decades of the 20th century are likely caused by variations of climate and anthropogenic activities. ?? 2007 by MDPI.

","language":"English","publisher":"MDPI","doi":"10.3390/s7123312","issn":"14243210","usgsCitation":"Zhang, J., Yao, F., Zheng, L., and Yang, L., 2007, Evaluation of grassland dynamics in the northern-tibet plateau of china using remote sensing and climate data: Sensors, v. 7, no. 12, p. 3312-3328, https://doi.org/10.3390/s7123312.","productDescription":"17 p.","startPage":"3312","endPage":"3328","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":477030,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3390/s7123312","text":"Publisher Index Page"},{"id":239329,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"7","issue":"12","noUsgsAuthors":false,"publicationDate":"2007-12-17","publicationStatus":"PW","scienceBaseUri":"505a0c7ee4b0c8380cd52b8b","contributors":{"authors":[{"text":"Zhang, Jiahua","contributorId":35479,"corporation":false,"usgs":true,"family":"Zhang","given":"Jiahua","email":"","affiliations":[],"preferred":false,"id":426149,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Yao, Fengmei","contributorId":107927,"corporation":false,"usgs":true,"family":"Yao","given":"Fengmei","email":"","affiliations":[],"preferred":false,"id":426151,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zheng, Lingyun","contributorId":68495,"corporation":false,"usgs":true,"family":"Zheng","given":"Lingyun","email":"","affiliations":[],"preferred":false,"id":426150,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Yang, Limin 0000-0002-2843-6944 lyang@usgs.gov","orcid":"https://orcid.org/0000-0002-2843-6944","contributorId":4305,"corporation":false,"usgs":true,"family":"Yang","given":"Limin","email":"lyang@usgs.gov","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":true,"id":426148,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ]}