{"pageNumber":"702","pageRowStart":"17525","pageSize":"25","recordCount":46666,"records":[{"id":70007515,"text":"70007515 - 2010 - An approach for modeling sediment budgets in supply-limited rivers","interactions":[],"lastModifiedDate":"2018-03-21T15:46:48","indexId":"70007515","displayToPublicDate":"2012-02-19T18:54:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"An approach for modeling sediment budgets in supply-limited rivers","docAbstract":"Reliable predictions of sediment transport and river morphology in response to variations in natural and human-induced drivers are necessary for river engineering and management. Because engineering and management applications may span a wide range of space and time scales, a broad spectrum of modeling approaches has been developed, ranging from suspended-sediment \"rating curves\" to complex three-dimensional morphodynamic models. Suspended sediment rating curves are an attractive approach for evaluating changes in multi-year sediment budgets resulting from changes in flow regimes because they are simple to implement, computationally efficient, and the empirical parameters can be estimated from quantities that are commonly measured in the field (i.e., suspended sediment concentration and water discharge). However, the standard rating curve approach assumes a unique suspended sediment concentration for a given water discharge. This assumption is not valid in rivers where sediment supply varies enough to cause changes in particle size or changes in areal coverage of sediment on the bed; both of these changes cause variations in suspended sediment concentration for a given water discharge. More complex numerical models of hydraulics and morphodynamics have been developed to address such physical changes of the bed. This additional complexity comes at a cost in terms of computations as well as the type and amount of data required for model setup, calibration, and testing. Moreover, application of the resulting sediment-transport models may require observations of bed-sediment boundary conditions that require extensive (and expensive) observations or, alternatively, require the use of an additional model (subject to its own errors) merely to predict the bed-sediment boundary conditions for use by the transport model. In this paper we present a hybrid approach that combines aspects of the rating curve method and the more complex morphodynamic models. Our primary objective was to develop an approach complex enough to capture the processes related to sediment supply limitation but simple enough to allow for rapid calculations of multi-year sediment budgets. The approach relies on empirical relations between suspended sediment concentration and discharge but on a particle size specific basis and also tracks and incorporates the particle size distribution of the bed sediment. We have applied this approach to the Colorado River below Glen Canyon Dam (GCD), a reach that is particularly suited to such an approach because it is substantially sediment supply limited such that transport rates are strongly dependent on both water discharge and sediment supply. The results confirm the ability of the approach to simulate the effects of supply limitation, including periods of accumulation and bed fining as well as erosion and bed coarsening, using a very simple formulation. Although more empirical in nature than standard one-dimensional morphodynamic models, this alternative approach is attractive because its simplicity allows for rapid evaluation of multi-year sediment budgets under a range of flow regimes and sediment supply conditions, and also because it requires substantially less data for model setup and use.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Water Resources Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington, D.C.","doi":"10.1029/2009WR008600","usgsCitation":"Wright, S., Topping, D.J., Rubin, D.M., and Melis, T., 2010, An approach for modeling sediment budgets in supply-limited rivers: Water Resources Research, v. 46, no. W10538, 18 p., https://doi.org/10.1029/2009WR008600.","productDescription":"18 p.","numberOfPages":"18","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":322,"text":"Grand Canyon Monitoring and Research Center","active":false,"usgs":true},{"id":528,"text":"Pacific Science Center","active":false,"usgs":true}],"links":[{"id":475496,"rank":101,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2009wr008600","text":"Publisher Index Page"},{"id":204732,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":204718,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://dx.doi.org/10.1029/2009WR008600","linkFileType":{"id":5,"text":"html"}}],"volume":"46","issue":"W10538","noUsgsAuthors":false,"publicationDate":"2010-10-28","publicationStatus":"PW","scienceBaseUri":"5059ea0be4b0c8380cd485cc","contributors":{"authors":[{"text":"Wright, Scott 0000-0002-0387-5713 sawright@usgs.gov","orcid":"https://orcid.org/0000-0002-0387-5713","contributorId":1536,"corporation":false,"usgs":true,"family":"Wright","given":"Scott","email":"sawright@usgs.gov","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":356568,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Topping, David J. 0000-0002-2104-4577 dtopping@usgs.gov","orcid":"https://orcid.org/0000-0002-2104-4577","contributorId":715,"corporation":false,"usgs":true,"family":"Topping","given":"David","email":"dtopping@usgs.gov","middleInitial":"J.","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":false,"id":356571,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rubin, David M. 0000-0003-1169-1452 drubin@usgs.gov","orcid":"https://orcid.org/0000-0003-1169-1452","contributorId":3159,"corporation":false,"usgs":true,"family":"Rubin","given":"David","email":"drubin@usgs.gov","middleInitial":"M.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":356570,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Melis, Theodore S. 0000-0003-0473-3968 tmelis@usgs.gov","orcid":"https://orcid.org/0000-0003-0473-3968","contributorId":1829,"corporation":false,"usgs":true,"family":"Melis","given":"Theodore S.","email":"tmelis@usgs.gov","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":true,"id":356569,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70007518,"text":"70007518 - 2010 - Tapping environmental history to recreate America's colonial hydrology","interactions":[],"lastModifiedDate":"2012-03-08T17:16:42","indexId":"70007518","displayToPublicDate":"2012-02-19T15:42:00","publicationYear":"2010","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":"Tapping environmental history to recreate America's colonial hydrology","docAbstract":"<p>Throughout American history water resources have played integral roles in shaping patterns of human settlement and networks of biological and economic exchange. In turn, humans have altered hydrologic systems to meet their needs. A paucity of climate and water discharge data for the seventeenth and eighteenth centuries, however, has left America's preindustrial hydrology largely unstudied. As a result, there have been few detailed, quantifiable, regional assessments of hydrologic change between the time of first European settlement and the dawn of industrial expansion.</p>\n<p>As scientists labor to understand present-day hydrologic systems and make predictions about the future, the value of expanding the geographic (1, 2) and temporal scopes (3, 4) of their studies has become increasingly evident. Pollen and tree-ring analyses have helped shed light on past climate and land-use patterns. But other nonscientific sources and methods can be equally revealing and in some cases complement empirical studies (5). This paper argues that environmental science, particularly that concerned with the human dimensions of water resources, stands to profit from using historical literature and archival sources. By considering work in environmental history, forging closer working relationships between the geophysical and social sciences, and seriously entertaining narratives as a form of evidence, environmental scientists can not only look farther into the past and across broader geographic areas, but they can also more accurately describe the nuances and complexities that define the ways humans have changed the world around them. In this paper, we present the recommendations of a multidisciplinary summer institute that developed 1) a conceptual and methodological framework for conducting historical hydrology, and 2) suggestions for ways that historical information can be used to inform the hydrologic sciences. Our intent here is to encourage further work along these or similar lines. We believe that future efforts that build on our famework and draw and expand upon the sources referenced below will produce scholarship of great utility to both environmental and social sciences.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Science and Technology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"ACS Publications","publisherLocation":"Washington, D.C.","doi":"10.1021/es102672c","usgsCitation":"Pastore, C.L., Green, M., Bain, D., Munoz-Hernandez, A., Vorosmarty, C.J., Arrigo, J., Brandt, S., Duncan, J., Greco, F., Kim, H., Kumar, S., Lally, M., Parolari, A.J., Pellerin, B.A., Salant, N., Schlosser, A., and Zalzal, K., 2010, Tapping environmental history to recreate America's colonial hydrology: Environmental Science & Technology, v. 44, no. 23, p. 8798-8803, https://doi.org/10.1021/es102672c.","productDescription":"6 p.","startPage":"8798","endPage":"8803","numberOfPages":"7","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":493327,"rank":101,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://epublications.marquette.edu/civengin_fac/180","text":"External Repository"},{"id":204730,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":204711,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://dx.doi.org/10.1021/es102672c","linkFileType":{"id":5,"text":"html"}}],"country":"United States","volume":"44","issue":"23","noUsgsAuthors":false,"publicationDate":"2010-11-03","publicationStatus":"PW","scienceBaseUri":"505ba3e0e4b08c986b31ff4f","contributors":{"authors":[{"text":"Pastore, Christopher L.","contributorId":98182,"corporation":false,"usgs":true,"family":"Pastore","given":"Christopher","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":356592,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Green, Mark B.","contributorId":86231,"corporation":false,"usgs":true,"family":"Green","given":"Mark B.","affiliations":[],"preferred":false,"id":356590,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bain, Daniel J.","contributorId":29276,"corporation":false,"usgs":true,"family":"Bain","given":"Daniel J.","affiliations":[],"preferred":false,"id":356580,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Munoz-Hernandez, Andrea","contributorId":12332,"corporation":false,"usgs":true,"family":"Munoz-Hernandez","given":"Andrea","email":"","affiliations":[],"preferred":false,"id":356578,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Vorosmarty, Charles J.","contributorId":77004,"corporation":false,"usgs":true,"family":"Vorosmarty","given":"Charles","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":356588,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Arrigo, Jennifer","contributorId":92528,"corporation":false,"usgs":true,"family":"Arrigo","given":"Jennifer","affiliations":[],"preferred":false,"id":356591,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Brandt, Sara","contributorId":23023,"corporation":false,"usgs":true,"family":"Brandt","given":"Sara","affiliations":[],"preferred":false,"id":356579,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Duncan, Jonathan M.","contributorId":105977,"corporation":false,"usgs":true,"family":"Duncan","given":"Jonathan M.","affiliations":[],"preferred":false,"id":356593,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Greco, Francesca","contributorId":73070,"corporation":false,"usgs":true,"family":"Greco","given":"Francesca","email":"","affiliations":[],"preferred":false,"id":356587,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Kim, Hyojin","contributorId":36019,"corporation":false,"usgs":true,"family":"Kim","given":"Hyojin","email":"","affiliations":[],"preferred":false,"id":356582,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Kumar, Sanjiv","contributorId":48448,"corporation":false,"usgs":true,"family":"Kumar","given":"Sanjiv","email":"","affiliations":[],"preferred":false,"id":356584,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Lally, Michael","contributorId":50790,"corporation":false,"usgs":true,"family":"Lally","given":"Michael","email":"","affiliations":[],"preferred":false,"id":356585,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Parolari, Anthony J.","contributorId":77425,"corporation":false,"usgs":true,"family":"Parolari","given":"Anthony","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":356589,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Pellerin, Brian A. bpeller@usgs.gov","contributorId":1451,"corporation":false,"usgs":true,"family":"Pellerin","given":"Brian","email":"bpeller@usgs.gov","middleInitial":"A.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":false,"id":356577,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Salant, Nira","contributorId":35197,"corporation":false,"usgs":true,"family":"Salant","given":"Nira","email":"","affiliations":[],"preferred":false,"id":356581,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Schlosser, Adam","contributorId":36426,"corporation":false,"usgs":true,"family":"Schlosser","given":"Adam","email":"","affiliations":[],"preferred":false,"id":356583,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Zalzal, Kate","contributorId":71447,"corporation":false,"usgs":true,"family":"Zalzal","given":"Kate","email":"","affiliations":[],"preferred":false,"id":356586,"contributorType":{"id":1,"text":"Authors"},"rank":17}]}}
,{"id":70005927,"text":"70005927 - 2010 - Vegetation index methods for estimating evapotranspiration by remote sensing","interactions":[],"lastModifiedDate":"2025-12-10T17:08:31.176037","indexId":"70005927","displayToPublicDate":"2012-01-29T12:26:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3503,"text":"Surveys in Geophysics","active":true,"publicationSubtype":{"id":10}},"title":"Vegetation index methods for estimating evapotranspiration by remote sensing","docAbstract":"Evapotranspiration (ET) is the largest term after precipitation in terrestrial water budgets. Accurate estimates of ET are needed for numerous agricultural and natural resource management tasks and to project changes in hydrological cycles due to potential climate change. We explore recent methods that combine vegetation indices (VI) from satellites with ground measurements of actual ET (ETa) and meteorological data to project ETa over a wide range of biome types and scales of measurement, from local to global estimates. The majority of these use time-series imagery from the Moderate Resolution Imaging Spectrometer on the Terra satellite to project ET over seasons and years. The review explores the theoretical basis for the methods, the types of ancillary data needed, and their accuracy and limitations. Coefficients of determination between modeled ETa and measured ETa are in the range of 0.45&ndash;0.95, and root mean square errors are in the range of 10&ndash;30% of mean ETa values across biomes, similar to methods that use thermal infrared bands to estimate ETa and within the range of accuracy of the ground measurements by which they are calibrated or validated. The advent of frequent-return satellites such as Terra and planed replacement platforms, and the increasing number of moisture and carbon flux tower sites over the globe, have made these methods feasible. Examples of operational algorithms for ET in agricultural and natural ecosystems are presented. The goal of the review is to enable potential end-users from different disciplines to adapt these methods to new applications that require spatially-distributed ET estimates.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Surveys in Geophysics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer","publisherLocation":"Amsterdam, Netherlands","doi":"10.1007/s10712-010-9102-2","usgsCitation":"Glenn, E.P., Nagler, P.L., and Huete, A.R., 2010, Vegetation index methods for estimating evapotranspiration by remote sensing: Surveys in Geophysics, v. 31, no. 6, p. 531-555, https://doi.org/10.1007/s10712-010-9102-2.","productDescription":"25 p.","startPage":"531","endPage":"555","costCenters":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"links":[{"id":204693,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"31","issue":"6","noUsgsAuthors":false,"publicationDate":"2010-10-17","publicationStatus":"PW","scienceBaseUri":"505bc1d8e4b08c986b32a7b7","contributors":{"authors":[{"text":"Glenn, Edward P.","contributorId":19289,"corporation":false,"usgs":true,"family":"Glenn","given":"Edward","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":353479,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nagler, Pamela L. 0000-0003-0674-103X pnagler@usgs.gov","orcid":"https://orcid.org/0000-0003-0674-103X","contributorId":1398,"corporation":false,"usgs":true,"family":"Nagler","given":"Pamela","email":"pnagler@usgs.gov","middleInitial":"L.","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":true,"id":353478,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Huete, Alfredo R.","contributorId":87291,"corporation":false,"usgs":true,"family":"Huete","given":"Alfredo","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":353480,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70003962,"text":"70003962 - 2010 - Variation in &delta;<sup>13</sup>C and &delta;<sup>15</sup>N diet&ndash;vibrissae trophic discrimination factors in a wild population of California sea otters","interactions":[],"lastModifiedDate":"2012-02-07T00:10:04","indexId":"70003962","displayToPublicDate":"2012-01-29T11:57:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1450,"text":"Ecological Applications","active":true,"publicationSubtype":{"id":10}},"title":"Variation in &delta;<sup>13</sup>C and &delta;<sup>15</sup>N diet&ndash;vibrissae trophic discrimination factors in a wild population of California sea otters","docAbstract":"The ability to quantify dietary inputs using stable isotope data depends on accurate estimates of isotopic differences between a consumer (c) and its diet (d), commonly referred to as trophic discrimination factors (TDFs) and denoted by &Delta;<sub>c-d</sub>. At present, TDFs are available for only a few mammals and are usually derived in captive settings. The magnitude of TDFs and the degree to which they vary in wild populations is unknown. We determined &delta;<sup>13</sup>C and &delta;<sup>15</sup>N TDFs for vibrissae (i.e., whiskers), a tissue that is rapidly becoming an informative isotopic substrate for ecologists, of a wild population of sea otters for which individual diet has been quantified through extensive observational study. This is one of the very few studies that report TDFs for free-living wild animals feeding on natural diets. Trophic discrimination factors of 2.2&#137; &plusmn; 0.7&#137; for &delta;<sup>13</sup>C and 3.5&#137; &plusmn; 0.6&#137; for &delta;<sup>15</sup>N (mean &plusmn; SD) were similar to those reported for captive carnivores, and variation in individual &delta;<sup>13</sup>C TDFs was negatively but significantly related to sea urchin consumption. This pattern may relate to the lipid-rich diet consumed by most sea otters in this population and suggests that it may not be appropriate to lipid-extract prey samples when using the isotopic composition of keratinaceous tissues to examine diet in consumers that frequently consume lipid-rich foods, such as many marine mammals and seabirds. We suggest that inherent variation in TDFs should be included in isotopically based estimates of trophic level, food chain length, and mixing models used to quantify dietary inputs in wild populations; this practice will further define the capabilities and limitations of isotopic approaches in ecological studies.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecological Applications","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Ecological Society of America","publisherLocation":"Ithaca, NY","doi":"10.1890/09-1502.1","usgsCitation":"Newsome, S.D., Bentall, G.B., Tinker, M.T., Oftedal, O.T., Ralls, K., Estes, J.A., and Fogel, M.L., 2010, Variation in &delta;<sup>13</sup>C and &delta;<sup>15</sup>N diet&ndash;vibrissae trophic discrimination factors in a wild population of California sea otters: Ecological Applications, v. 20, no. 6, p. 1744-1752, https://doi.org/10.1890/09-1502.1.","productDescription":"9 p.","startPage":"1744","endPage":"1752","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":21755,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://dx.doi.org/10.1890/09-1502.1","linkFileType":{"id":5,"text":"html"}},{"id":204696,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"20","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc14fe4b08c986b32a507","contributors":{"authors":[{"text":"Newsome, Seth D.","contributorId":81640,"corporation":false,"usgs":false,"family":"Newsome","given":"Seth","email":"","middleInitial":"D.","affiliations":[{"id":7000,"text":"Department of Biology, University of New Mexico","active":true,"usgs":false}],"preferred":false,"id":349733,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bentall, Gena B. 0000-0001-5448-1573","orcid":"https://orcid.org/0000-0001-5448-1573","contributorId":43103,"corporation":false,"usgs":true,"family":"Bentall","given":"Gena","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":349730,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tinker, M. Tim 0000-0002-3314-839X ttinker@usgs.gov","orcid":"https://orcid.org/0000-0002-3314-839X","contributorId":2796,"corporation":false,"usgs":true,"family":"Tinker","given":"M.","email":"ttinker@usgs.gov","middleInitial":"Tim","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":349728,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Oftedal, Olav T.","contributorId":54738,"corporation":false,"usgs":true,"family":"Oftedal","given":"Olav","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":349732,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ralls, Katherine","contributorId":37900,"corporation":false,"usgs":false,"family":"Ralls","given":"Katherine","email":"","affiliations":[{"id":7035,"text":"Smithsonian Conservation Biology Institute, National Zoological Park","active":true,"usgs":false}],"preferred":false,"id":349729,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Estes, James A. jim_estes@usgs.gov","contributorId":53325,"corporation":false,"usgs":true,"family":"Estes","given":"James","email":"jim_estes@usgs.gov","middleInitial":"A.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true},{"id":6949,"text":"University of California, Santa Cruz","active":true,"usgs":false}],"preferred":false,"id":349731,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Fogel, Marilyn L.","contributorId":99699,"corporation":false,"usgs":true,"family":"Fogel","given":"Marilyn","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":349734,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70007220,"text":"ofr20101093 - 2010 - Whole-rock analyses of core samples from the 1988 drilling of Kilauea Iki lava lake, Hawaii","interactions":[],"lastModifiedDate":"2012-02-02T00:16:01","indexId":"ofr20101093","displayToPublicDate":"2012-01-25T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2010-1093","title":"Whole-rock analyses of core samples from the 1988 drilling of Kilauea Iki lava lake, Hawaii","docAbstract":"This report presents and evaluates 64 major-element analyses of previously unanalyzed Kilauea Iki drill core, plus three samples from the 1959 and 1960 eruptions of Kilauea, obtained by X-ray fluorescence (XRF) analysis during the period 1992 to 1995. All earlier major-element analyses of Kilauea Iki core, obtained by classical (gravimetric) analysis, were reported and evaluated in Helz and others (1994). In order to assess how well the newer data compare with this earlier suite of analyses, a subset of 24 samples, which had been analyzed by classical analysis, was reanalyzed using the XRF technique; those results are presented and evaluated in this report also. The XRF analyses have not been published previously. This report also provides an overview of how the chemical variations observed in these new data fit in with the chemical zonation patterns and petrologic processes inferred in earlier studies of Kilauea Iki.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20101093","usgsCitation":"Helz, R.T., and Taggart, J.E., 2010, Whole-rock analyses of core samples from the 1988 drilling of Kilauea Iki lava lake, Hawaii: U.S. Geological Survey Open-File Report 2010-1093, iv, 29 p.; Tables, https://doi.org/10.3133/ofr20101093.","productDescription":"iv, 29 p.; Tables","temporalStart":"1988-01-01","temporalEnd":"1988-12-31","costCenters":[{"id":596,"text":"U.S. Geological Survey National Center","active":false,"usgs":true}],"links":[{"id":116378,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr_2010_1093.jpg"},{"id":115704,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2010/1093/","linkFileType":{"id":5,"text":"html"}}],"state":"Hawai'i","otherGeospatial":"Kilauea Iki Lava Lake","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bd08de4b08c986b32ef0c","contributors":{"authors":[{"text":"Helz, Rosalind Tuthill 0000-0003-1550-0684","orcid":"https://orcid.org/0000-0003-1550-0684","contributorId":85587,"corporation":false,"usgs":true,"family":"Helz","given":"Rosalind","email":"","middleInitial":"Tuthill","affiliations":[],"preferred":false,"id":356128,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Taggart, Joseph E. Jr.","contributorId":66317,"corporation":false,"usgs":true,"family":"Taggart","given":"Joseph","suffix":"Jr.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":356127,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70003594,"text":"70003594 - 2010 - Update on geographic spread of invasive lionfishes (<i>Pterois volitans</i> [Linnaeus, 1758] and <i>P. miles</i> [Bennett, 1828]) in the Western North Atlantic Ocean, Caribbean Sea and Gulf of Mexico","interactions":[],"lastModifiedDate":"2012-02-02T00:16:02","indexId":"70003594","displayToPublicDate":"2012-01-22T14:54:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":868,"text":"Aquatic Invasions","active":true,"publicationSubtype":{"id":10}},"title":"Update on geographic spread of invasive lionfishes (<i>Pterois volitans</i> [Linnaeus, 1758] and <i>P. miles</i> [Bennett, 1828]) in the Western North Atlantic Ocean, Caribbean Sea and Gulf of Mexico","docAbstract":"The Indo-Pacific lionfishes (<i>Pterois volitans</i> [Linnaeus, 1758] and <i>P. miles</i> [Bennett, 1828]: Family Scorpaenidae) are the first nonnative marine fishes to establish in the Western North Atlantic/Caribbean region. The chronology of the invasion was reported last year (Schofield 2009) using records from the US Geological Survey's Nonindigenous Aquatic Species database. This article provides an update of lionfish geographic spread (as of October 2010) and predictions of future range.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Aquatic Invasions","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Regional Euro-Asian Biological Invasions Centre","publisherLocation":"Helsinki, Finland","usgsCitation":"Schofield, P., 2010, Update on geographic spread of invasive lionfishes (<i>Pterois volitans</i> [Linnaeus, 1758] and <i>P. miles</i> [Bennett, 1828]) in the Western North Atlantic Ocean, Caribbean Sea and Gulf of Mexico: Aquatic Invasions, v. 5, p. S117-S122.","productDescription":"6 p.","startPage":"S117","endPage":"S122","costCenters":[{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"links":[{"id":204683,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":115744,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://www.aquaticinvasions.net/2010/Supplement/AI_2010_5_S1_Schofield.pdf","linkFileType":{"id":1,"text":"pdf"}}],"volume":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbd10e4b08c986b328eae","contributors":{"authors":[{"text":"Schofield, Pamela J. 0000-0002-8752-2797","orcid":"https://orcid.org/0000-0002-8752-2797","contributorId":30306,"corporation":false,"usgs":true,"family":"Schofield","given":"Pamela J.","affiliations":[{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"preferred":true,"id":347871,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70003561,"text":"70003561 - 2010 - Unmodeled observation error induces bias when inferring patterns and dynamics of species occurrence via aural detections","interactions":[],"lastModifiedDate":"2021-01-13T16:55:42.10747","indexId":"70003561","displayToPublicDate":"2012-01-22T14:42:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1465,"text":"Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Unmodeled observation error induces bias when inferring patterns and dynamics of species occurrence via aural detections","docAbstract":"<p><span>The recent surge in the development and application of species occurrence models has been associated with an acknowledgment among ecologists that species are detected imperfectly due to observation error. Standard models now allow unbiased estimation of occupancy probability when false negative detections occur, but this is conditional on no false positive detections and sufficient incorporation of explanatory variables for the false negative detection process. These assumptions are likely reasonable in many circumstances, but there is mounting evidence that false positive errors and detection probability heterogeneity may be much more prevalent in studies relying on auditory cues for species detection (e.g., songbird or calling amphibian surveys). We used field survey data from a simulated calling anuran system of known occupancy state to investigate the biases induced by these errors in dynamic models of species occurrence. Despite the participation of expert observers in simplified field conditions, both false positive errors and site detection probability heterogeneity were extensive for most species in the survey. We found that even low levels of false positive errors, constituting as little as 1% of all detections, can cause severe overestimation of site occupancy, colonization, and local extinction probabilities. Further, unmodeled detection probability heterogeneity induced substantial underestimation of occupancy and overestimation of colonization and local extinction probabilities. Completely spurious relationships between species occurrence and explanatory variables were also found. Such misleading inferences would likely have deleterious implications for conservation and management programs. We contend that all forms of observation error, including false positive errors and heterogeneous detection probabilities, must be incorporated into the estimation framework to facilitate reliable inferences about occupancy and its associated vital rate parameters.</span></p>","language":"English","publisher":"Ecological Society of America","doi":"10.1890/09-1287.1","usgsCitation":"McClintock, B.T., Bailey, L., Pollock, K.H., and Simons, T.R., 2010, Unmodeled observation error induces bias when inferring patterns and dynamics of species occurrence via aural detections: Ecology, v. 91, no. 8, p. 2446-2454, https://doi.org/10.1890/09-1287.1.","productDescription":"9 p.","startPage":"2446","endPage":"2454","numberOfPages":"9","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":475502,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1890/09-1287.1","text":"Publisher Index 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H.","contributorId":8590,"corporation":false,"usgs":false,"family":"Pollock","given":"Kenneth","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":347747,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Simons, Theodore R. 0000-0002-1884-6229 tsimons@usgs.gov","orcid":"https://orcid.org/0000-0002-1884-6229","contributorId":2623,"corporation":false,"usgs":true,"family":"Simons","given":"Theodore","email":"tsimons@usgs.gov","middleInitial":"R.","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":true,"id":347746,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70003377,"text":"70003377 - 2010 - USGS perspectives on an integrated approach to watershed and coastal management","interactions":[],"lastModifiedDate":"2012-02-02T00:16:02","indexId":"70003377","displayToPublicDate":"2012-01-22T14:33:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2678,"text":"Marine Technology Society Journal","active":true,"publicationSubtype":{"id":10}},"title":"USGS perspectives on an integrated approach to watershed and coastal management","docAbstract":"The writers discuss three critically important steps necessary for achieving the goal for improved integrated approaches on watershed and coastal protection and management. These steps involve modernization of monitoring networks, creation of common data and web services infrastructures, and development of modeling, assessment, and research tools. Long-term monitoring is needed for tracking the effectiveness approaches for controlling land-based sources of nutrients, contaminants, and invasive species. The integration of mapping and monitoring with conceptual and mathematical models, and multidisciplinary assessments is important in making well-informed decisions. Moreover, a better integrated data network is essential for mapping, statistical, and modeling applications, and timely dissemination of data and information products to a broad community of users.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Technology Society Journal","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Marine Technology Society","publisherLocation":"Washington, D.C.","usgsCitation":"Larsen, M.C., Hamilton, P.A., Haines, J.W., and Mason, 2010, USGS perspectives on an integrated approach to watershed and coastal management: Marine Technology Society Journal, v. 44, no. 6, p. 18-21.","productDescription":"4 p.","startPage":"18","endPage":"21","costCenters":[{"id":509,"text":"Office of the Associate Director for Water","active":true,"usgs":true}],"links":[{"id":204679,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"44","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbbd6e4b08c986b328870","contributors":{"authors":[{"text":"Larsen, Matthew C. mclarsen@usgs.gov","contributorId":1568,"corporation":false,"usgs":true,"family":"Larsen","given":"Matthew","email":"mclarsen@usgs.gov","middleInitial":"C.","affiliations":[],"preferred":true,"id":347059,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hamilton, Pixie A. pahamilt@usgs.gov","contributorId":1068,"corporation":false,"usgs":true,"family":"Hamilton","given":"Pixie","email":"pahamilt@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":347058,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Haines, John W. 0000-0002-6475-8924 jhaines@usgs.gov","orcid":"https://orcid.org/0000-0002-6475-8924","contributorId":509,"corporation":false,"usgs":true,"family":"Haines","given":"John","email":"jhaines@usgs.gov","middleInitial":"W.","affiliations":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"preferred":true,"id":347057,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mason, Jr. 0000-0002-3998-3468 rrmason@usgs.gov","orcid":"https://orcid.org/0000-0002-3998-3468","contributorId":2090,"corporation":false,"usgs":true,"family":"Mason","suffix":"Jr.","email":"rrmason@usgs.gov","affiliations":[{"id":509,"text":"Office of the Associate Director for Water","active":true,"usgs":true}],"preferred":true,"id":347060,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70004024,"text":"70004024 - 2010 - Uncloaking a cryptic, threatened rail with molecular markers: origins, connectivity and demography of a recently-discovered population","interactions":[],"lastModifiedDate":"2017-08-23T09:19:05","indexId":"70004024","displayToPublicDate":"2012-01-22T14:15:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1324,"text":"Conservation Genetics","active":true,"publicationSubtype":{"id":10}},"title":"Uncloaking a cryptic, threatened rail with molecular markers: origins, connectivity and demography of a recently-discovered population","docAbstract":"The threatened California Black Rail lives under dense marsh vegetation, is rarely observed, flies weakly and has a highly disjunct distribution. The largest population of rails is found in 8&ndash;10 large wetlands in San Francisco Bay (SF Bay), but a population was recently discovered in the foothills of the Sierra Nevada Mountains (Foothills), within a wetland network comprised of over 200 small marshes. Using microsatellite and mitochondrial analyses, our objectives were to determine the origins, connectivity and demography of this recently-discovered population. Analyses of individuals from the Foothills (<i>n</i> = 31), SF Bay (<i>n</i> = 31), the Imperial Valley (<i>n</i> = 6) and the East Coast (<i>n</i> = 3), combined with rigorous power evaluations, provided valuable insights into past history and current dynamics of the species in Northern California that challenge conventional wisdom about the species. The Foothills and SF Bay populations have diverged strongly from the Imperial Valley population, even more strongly than from individuals of the East Coast subspecies. The data also suggest a historical presence of the species in the Foothills. The SF Bay and Foothills populations had similar estimated effective population size over the areas sampled and appeared linked by a strongly asymmetrical migration pattern, with a greater probability of movement from the Foothills to SF Bay than vice versa. Random mating was inferred in the Foothills, but local substructure among marshes and inbreeding were detected in SF Bay, suggesting different dispersal patterns within each location. The unexpected dimensions of Black Rail demography and population structure suggested by these analyses and their potential importance for management are discussed.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Conservation Genetics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer","publisherLocation":"Amsterdam, Netherlands","doi":"10.1007/s10592-010-0126-4","usgsCitation":"Girard, P., Takekawa, J.Y., and Beissinger, S.R., 2010, Uncloaking a cryptic, threatened rail with molecular markers: origins, connectivity and demography of a recently-discovered population: Conservation Genetics, v. 11, no. 6, p. 2409-2418, https://doi.org/10.1007/s10592-010-0126-4.","productDescription":"10 p.","startPage":"2409","endPage":"2418","numberOfPages":"10","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":475504,"rank":101,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1007/s10592-010-0126-4","text":"Publisher Index Page"},{"id":204686,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":115741,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://dx.doi.org/10.1007/s10592-010-0126-4","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"California","otherGeospatial":"San Francisco Bay;Sierra Nevada Mountains","volume":"11","issue":"6","noUsgsAuthors":false,"publicationDate":"2010-09-07","publicationStatus":"PW","scienceBaseUri":"505bbc29e4b08c986b328a8d","contributors":{"authors":[{"text":"Girard, Philippe","contributorId":98471,"corporation":false,"usgs":true,"family":"Girard","given":"Philippe","email":"","affiliations":[],"preferred":false,"id":350190,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Takekawa, John Y. 0000-0003-0217-5907 john_takekawa@usgs.gov","orcid":"https://orcid.org/0000-0003-0217-5907","contributorId":176168,"corporation":false,"usgs":true,"family":"Takekawa","given":"John","email":"john_takekawa@usgs.gov","middleInitial":"Y.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":false,"id":350189,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Beissinger, Steven R.","contributorId":100534,"corporation":false,"usgs":true,"family":"Beissinger","given":"Steven","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":350191,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70003508,"text":"70003508 - 2010 - Two-dimensional time dependent hurricane overwash and erosion modeling at Santa Rosa Island","interactions":[],"lastModifiedDate":"2012-02-02T00:15:57","indexId":"70003508","displayToPublicDate":"2012-01-22T13:27:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1262,"text":"Coastal Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Two-dimensional time dependent hurricane overwash and erosion modeling at Santa Rosa Island","docAbstract":"A 2DH numerical, model which is capable of computing nearshore circulation and morphodynamics, including dune erosion, breaching and overwash, is used to simulate overwash caused by Hurricane Ivan (2004) on a barrier island. The model is forced using parametric wave and surge time series based on field data and large-scale numerical model results. The model predicted beach face and dune erosion reasonably well as well as the development of washover fans. Furthermore, the model demonstrated considerable quantitative skill (upwards of 66% of variance explained, maximum bias - 0.21 m) in hindcasting the post-storm shape and elevation of the subaerial barrier island when a sheet flow sediment transport limiter was applied. The prediction skill ranged between 0.66 and 0.77 in a series of sensitivity tests in which several hydraulic forcing parameters were varied. The sensitivity studies showed that the variations in the incident wave height and wave period affected the entire simulated island morphology while variations in the surge level gradient between the ocean and back barrier bay affected the amount of deposition on the back barrier and in the back barrier bay. The model sensitivity to the sheet flow sediment transport limiter, which served as a proxy for unknown factors controlling the resistance to erosion, was significantly greater than the sensitivity to the hydraulic forcing parameters. If no limiter was applied the simulated morphological response of the barrier island was an order of magnitude greater than the measured morphological response.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Coastal Engineering","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/j.coastaleng.2010.02.006","usgsCitation":"McCall, R., Van Theil de Vries, J.S., Plant, N., Van Dongeren, A., Roelvink, J., Thompson, D., and Reniers, A., 2010, Two-dimensional time dependent hurricane overwash and erosion modeling at Santa Rosa Island: Coastal Engineering, v. 57, no. 7, p. 668-683, https://doi.org/10.1016/j.coastaleng.2010.02.006.","productDescription":"16 p.","startPage":"668","endPage":"683","costCenters":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":487158,"rank":101,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://zenodo.org/record/3416273","text":"External Repository"},{"id":115737,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://dx.doi.org/10.1016/j.coastaleng.2010.02.006","linkFileType":{"id":5,"text":"html"}},{"id":204588,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"57","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb99ce4b08c986b327cbb","contributors":{"authors":[{"text":"McCall, R.T.","contributorId":54733,"corporation":false,"usgs":true,"family":"McCall","given":"R.T.","email":"","affiliations":[],"preferred":false,"id":347572,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Van Theil de Vries, J. S. M.","contributorId":71312,"corporation":false,"usgs":true,"family":"Van Theil de Vries","given":"J.","email":"","middleInitial":"S. M.","affiliations":[],"preferred":false,"id":347574,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Plant, N.G.","contributorId":94023,"corporation":false,"usgs":true,"family":"Plant","given":"N.G.","email":"","affiliations":[],"preferred":false,"id":347576,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Van Dongeren, A. R.","contributorId":55572,"corporation":false,"usgs":true,"family":"Van Dongeren","given":"A. R.","affiliations":[],"preferred":false,"id":347573,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Roelvink, J.A.","contributorId":92421,"corporation":false,"usgs":true,"family":"Roelvink","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":347575,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Thompson, D.M.","contributorId":16570,"corporation":false,"usgs":true,"family":"Thompson","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":347571,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Reniers, A.J.H.M.","contributorId":95612,"corporation":false,"usgs":true,"family":"Reniers","given":"A.J.H.M.","email":"","affiliations":[],"preferred":false,"id":347577,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70003456,"text":"70003456 - 2010 - Traffic effects on bird counts on North American Breeding Bird Survey routes","interactions":[],"lastModifiedDate":"2017-05-07T11:42:15","indexId":"70003456","displayToPublicDate":"2012-01-15T09:45:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3544,"text":"The Auk","onlineIssn":"1938-4254","printIssn":"0004-8038","active":true,"publicationSubtype":{"id":10}},"title":"Traffic effects on bird counts on North American Breeding Bird Survey routes","docAbstract":"The North American Breeding Bird Survey (BBS) is an annual roadside survey used to estimate population change in >420 species of birds that breed in North America. Roadside sampling has been criticized, in part because traffic noise can interfere with bird counts. Since 1997, data have been collected on the numbers of vehicles that pass during counts at each stop. We assessed the effect of traffic by modeling total vehicles as a covariate of counts in hierarchical Poisson regression models used to estimate population change. We selected species for analysis that represent birds detected at low and high abundance and birds with songs of low and high frequencies. Increases in vehicle counts were associated with decreases in bird counts in most of the species examined. The size and direction of these effects remained relatively constant between two alternative models that we analyzed. Although this analysis indicated only a small effect of incorporating traffic effects when modeling roadside counts of birds, we suggest that continued evaluation of changes in traffic at BBS stops should be a component of future BBS analyses.","language":"English","publisher":"American Ornithological Society","doi":"10.1525/auk.2009.09056","usgsCitation":"Griffith, E.H., Sauer, J., and Royle, J., 2010, Traffic effects on bird counts on North American Breeding Bird Survey routes: The Auk, v. 127, no. 2, p. 387-393, https://doi.org/10.1525/auk.2009.09056.","productDescription":"7 p.","startPage":"387","endPage":"393","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":475506,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1525/auk.2009.09056","text":"Publisher Index Page"},{"id":204571,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","volume":"127","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb6b1e4b08c986b326e0a","contributors":{"authors":[{"text":"Griffith, Emily H.","contributorId":70108,"corporation":false,"usgs":true,"family":"Griffith","given":"Emily","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":347343,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sauer, John R. jrsauer@usgs.gov","contributorId":3737,"corporation":false,"usgs":true,"family":"Sauer","given":"John R.","email":"jrsauer@usgs.gov","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":false,"id":347342,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Royle, J. Andrew 0000-0003-3135-2167","orcid":"https://orcid.org/0000-0003-3135-2167","contributorId":80808,"corporation":false,"usgs":true,"family":"Royle","given":"J. Andrew","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":347344,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70003734,"text":"70003734 - 2010 - Thresholds in forest bird occurrence as a function of the amount of early-seral broadleaf forest at landscape scales","interactions":[],"lastModifiedDate":"2012-02-02T00:16:02","indexId":"70003734","displayToPublicDate":"2012-01-08T15:30:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1450,"text":"Ecological Applications","active":true,"publicationSubtype":{"id":10}},"title":"Thresholds in forest bird occurrence as a function of the amount of early-seral broadleaf forest at landscape scales","docAbstract":"Recent declines in broadleaf-dominated, early-seral forest globally as a function of intensive forest management and/or fire suppression have raised concern about the viability of populations dependent on such forest types. However, quantitative information about the strength and direction of species associations with broadleaf cover at landscape scales are rare. Uncovering such habitat relationships is essential for understanding the demography of species and in developing sound conservation strategies. It is particularly important to detect points in habitat reduction where rates of population decline may accelerate or the likelihood of species occurrence drops rapidly (i.e., thresholds). Here, we use a large avian point-count data set (<i>N</i> = 4375) from southwestern and northwestern Oregon along with segmented logistic regression to test for thresholds in forest bird occurrence as a function of broadleaf forest and early-seral broadleaf forest at local (150-m radius) and landscape (500&ndash;2000-m radius) scales. All 12 bird species examined showed positive responses to either broadleaf forest in general, and/or early-seral broadleaf forest. However, regional variation in species response to these conditions was high. We found considerable evidence for landscape thresholds in bird species occurrence as a function of broadleaf cover; threshold models received substantially greater support than linear models for eight of 12 species. Landscape thresholds in broadleaf forest ranged broadly from 1.35% to 24.55% mean canopy cover. Early-seral broadleaf thresholds tended to be much lower (0.22&ndash;1.87%). We found a strong negative relationship between the strength of species association with early-seral broadleaf forest and 42-year bird population trends; species most associated with this forest type have declined at the greatest rates. Taken together, these results provide the first support for the hypothesis that reductions in broadleaf-dominated early-seral forest due to succession and intensive forest management have led to population declines of constituent species in the Pacific northwestern United States. Forest management treatments that maintain or restore even small amounts of broadleaf vegetation could mitigate further declines.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecological Applications","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Ecological Society of America","publisherLocation":"Ithaca, NY","doi":"10.1890/09-1305.1","usgsCitation":"Betts, M., Hagar, J., Rivers, J., Alexander, J., McGarigal, K., and McComb, B., 2010, Thresholds in forest bird occurrence as a function of the amount of early-seral broadleaf forest at landscape scales: Ecological Applications, v. 20, no. 8, p. 2116-2130, https://doi.org/10.1890/09-1305.1.","productDescription":"15 p.","startPage":"2116","endPage":"2130","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":112480,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://dx.doi.org/10.1890/09-1305.1","linkFileType":{"id":5,"text":"html"}},{"id":204275,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Oregon","volume":"20","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb355e4b08c986b325d1e","contributors":{"authors":[{"text":"Betts, M.G.","contributorId":58386,"corporation":false,"usgs":true,"family":"Betts","given":"M.G.","email":"","affiliations":[],"preferred":false,"id":348576,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hagar, J.C.","contributorId":46208,"corporation":false,"usgs":true,"family":"Hagar","given":"J.C.","affiliations":[],"preferred":false,"id":348575,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rivers, J.W.","contributorId":63151,"corporation":false,"usgs":true,"family":"Rivers","given":"J.W.","email":"","affiliations":[],"preferred":false,"id":348577,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Alexander, J.D.","contributorId":16562,"corporation":false,"usgs":true,"family":"Alexander","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":348574,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"McGarigal, K.","contributorId":7831,"corporation":false,"usgs":true,"family":"McGarigal","given":"K.","email":"","affiliations":[],"preferred":false,"id":348573,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"McComb, B.C.","contributorId":102196,"corporation":false,"usgs":true,"family":"McComb","given":"B.C.","email":"","affiliations":[],"preferred":false,"id":348578,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70003501,"text":"70003501 - 2010 - Thermochronology and tectonics of the Leeward Antilles: Evolution of the southern Caribbean Plate boundary zone","interactions":[],"lastModifiedDate":"2012-02-10T00:12:01","indexId":"70003501","displayToPublicDate":"2012-01-08T14:13:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3524,"text":"Tectonics","active":true,"publicationSubtype":{"id":10}},"title":"Thermochronology and tectonics of the Leeward Antilles: Evolution of the southern Caribbean Plate boundary zone","docAbstract":"Tectonic reconstructions of the Caribbean Plate are severely hampered by a paucity of geochronologic and exhumation constraints from anastomosed basement blocks along its southern margin. New U/Pb, <sup>40</sup>Ar/<sup>39</sup>Ar, apatite fission track, and apatite (U-Th)/He data constrain quantitative thermal and exhumation histories, which have been used to propose a model for the tectonic evolution of the emergent parts of the Bonaire Block and the southern Caribbean Plate boundary zone. An east facing arc system intruded through an oceanic plateau during ~90 to ~87 Ma and crops out on Aruba. Subsequent structural displacements resulted in >80&deg;C of cooling on Aruba during 70&ndash;60 Ma. In contrast, exhumation of the island arc sequence exposed on Bonaire occurred at 85&ndash;80 Ma and 55&ndash;45 Ma. Santonian exhumation on Bonaire occurred immediately subsequent to burial metamorphism and may have been driven by the collision of a west facing island arc with the Caribbean Plate. Island arc rocks intruded oceanic plateau rocks on Gran Roque at ~65 Ma and exhumed rapidly at 55&ndash;45 Ma. We attribute Maastrichtian-Danian exhumation on Aruba and early Eocene exhumation on Bonaire and Gran Roque to sequential diachronous accretion of their basement units to the South American Plate. Widespread unconformities indicate late Eocene subaerial exposure. Late Oligocene&ndash;early Miocene dextral transtension within the Bonaire Block drove subsidence and burial of crystalline basement rocks of the Leeward Antilles to &le;1 km. Late Miocene&ndash;recent transpression caused inversion and &le;1 km of exhumation, possibly as a result of the northward escape of the Maracaibo Block.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Tectonics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington, D.C.","usgsCitation":"van der Lelij, R., Spikings, R.A., Kerr, A.C., Kounov, A., Cosca, M., Chew, D., and Villagomez, D., 2010, Thermochronology and tectonics of the Leeward Antilles: Evolution of the southern Caribbean Plate boundary zone: Tectonics, v. 29, no. TC6003, 30 p.","productDescription":"30 p.","numberOfPages":"30","onlineOnly":"Y","costCenters":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":204241,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":112477,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pages.unibas.ch/earth/tecto/Members/Kounov/Downloads/van_der_Lelij_et_al_2010_(Tectonics).pdf","linkFileType":{"id":1,"text":"pdf"}}],"otherGeospatial":"Caribbean Plate","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -95,-5 ], [ -95,24 ], [ -54,24 ], [ -54,-5 ], [ -95,-5 ] ] ] } } ] }","volume":"29","issue":"TC6003","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb26ae4b08c986b3257b5","contributors":{"authors":[{"text":"van der Lelij, Roelant","contributorId":67777,"corporation":false,"usgs":true,"family":"van der Lelij","given":"Roelant","email":"","affiliations":[],"preferred":false,"id":347543,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Spikings, Richard A.","contributorId":92546,"corporation":false,"usgs":true,"family":"Spikings","given":"Richard","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":347545,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kerr, Andrew C.","contributorId":21828,"corporation":false,"usgs":true,"family":"Kerr","given":"Andrew","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":347541,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kounov, Alexandre","contributorId":101945,"corporation":false,"usgs":true,"family":"Kounov","given":"Alexandre","email":"","affiliations":[],"preferred":false,"id":347546,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Cosca, Michael 0000-0002-0600-7663","orcid":"https://orcid.org/0000-0002-0600-7663","contributorId":33043,"corporation":false,"usgs":true,"family":"Cosca","given":"Michael","affiliations":[{"id":35995,"text":"Geology, Geophysics, and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":347542,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Chew, David","contributorId":68172,"corporation":false,"usgs":true,"family":"Chew","given":"David","email":"","affiliations":[],"preferred":false,"id":347544,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Villagomez, Diego","contributorId":106381,"corporation":false,"usgs":true,"family":"Villagomez","given":"Diego","email":"","affiliations":[],"preferred":false,"id":347547,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70003948,"text":"70003948 - 2010 - Thermal state of permafrost in North America: A contribution to the international polar year","interactions":[],"lastModifiedDate":"2012-02-02T00:16:02","indexId":"70003948","displayToPublicDate":"2012-01-08T13:32:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3032,"text":"Permafrost and Periglacial Processes","active":true,"publicationSubtype":{"id":10}},"title":"Thermal state of permafrost in North America: A contribution to the international polar year","docAbstract":"A snapshot of the thermal state of permafrost in northern North America during the International Polar Year (IPY) was developed using ground temperature data collected from 350 boreholes. More than half these were established during IPY to enhance the network in sparsely monitored regions. The measurement sites span a diverse range of ecoclimatic and geological conditions across the continent and are at various elevations within the Cordillera. The ground temperatures within the discontinuous permafrost zone are generally above -3&deg;C, and range down to -15&deg;C in the continuous zone. Ground temperature envelopes vary according to substrate, with shallow depths of zero annual amplitude for peat and mineral soils, and much greater depths for bedrock. New monitoring sites in the mountains of southern and central Yukon suggest that permafrost may be limited in extent. In concert with regional air temperatures, permafrost has generally been warming across North America for the past several decades, as indicated by measurements from the western Arctic since the 1970s and from parts of eastern Canada since the early 1990s. The rates of ground warming have been variable, but are generally greater north of the treeline. Latent heat effects in the southern discontinuous zone dominate the permafrost thermal regime close to 0&deg;C and allow permafrost to persist under a warming climate. Consequently, the spatial diversity of permafrost thermal conditions is decreasing over time.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Permafrost and Periglacial Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"John Wiley & Sons","publisherLocation":"Hoboken, NJ","usgsCitation":"Smith, S., Romanovsky, V., Lewkowicz, A., Burn, C., Allard, M., Clow, G., Yoshikawa, K., and Throop, J., 2010, Thermal state of permafrost in North America: A contribution to the international polar year: Permafrost and Periglacial Processes, v. 21, no. 2, p. 117-135.","productDescription":"19 p.","startPage":"117","endPage":"135","costCenters":[{"id":308,"text":"Geology and Environmental Change Science Center","active":false,"usgs":true}],"links":[{"id":204298,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":112476,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://www.doi.org/10.1002/ppp.690","linkFileType":{"id":5,"text":"html"}}],"otherGeospatial":"North America","volume":"21","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb25ce4b08c986b325764","contributors":{"authors":[{"text":"Smith, S.L.","contributorId":99277,"corporation":false,"usgs":true,"family":"Smith","given":"S.L.","email":"","affiliations":[],"preferred":false,"id":349677,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Romanovsky, V.E.","contributorId":54721,"corporation":false,"usgs":true,"family":"Romanovsky","given":"V.E.","email":"","affiliations":[],"preferred":false,"id":349674,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lewkowicz, A.G.","contributorId":67210,"corporation":false,"usgs":true,"family":"Lewkowicz","given":"A.G.","email":"","affiliations":[],"preferred":false,"id":349675,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Burn, C.R.","contributorId":44278,"corporation":false,"usgs":true,"family":"Burn","given":"C.R.","email":"","affiliations":[],"preferred":false,"id":349672,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Allard, M.","contributorId":11322,"corporation":false,"usgs":true,"family":"Allard","given":"M.","email":"","affiliations":[],"preferred":false,"id":349670,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Clow, G.D.","contributorId":46112,"corporation":false,"usgs":true,"family":"Clow","given":"G.D.","email":"","affiliations":[],"preferred":false,"id":349673,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Yoshikawa, K.","contributorId":72736,"corporation":false,"usgs":true,"family":"Yoshikawa","given":"K.","email":"","affiliations":[],"preferred":false,"id":349676,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Throop, J.","contributorId":14942,"corporation":false,"usgs":true,"family":"Throop","given":"J.","email":"","affiliations":[],"preferred":false,"id":349671,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70003861,"text":"70003861 - 2010 - Measurement of dissolved organic matter fluorescense in aquatic environments: An interlaboratory comparison","interactions":[],"lastModifiedDate":"2018-10-11T10:13:35","indexId":"70003861","displayToPublicDate":"2012-01-08T10:15:00","publicationYear":"2010","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":"Measurement of dissolved organic matter fluorescense in aquatic environments: An interlaboratory comparison","docAbstract":"The fluorescent properties of dissolved organic matter (DOM) are often studied in order to infer DOM characteristics in aquatic environments, including source, quantity, composition, and behavior. While a potentially powerful technique, a single widely implemented standard method for correcting and presenting fluorescence measurements is lacking, leading to difficulties when comparing data collected by different research groups. This paper reports on a large-scale interlaboratory comparison in which natural samples and well-characterized fluorophores were analyzed in 20 laboratories in the U.S., Europe, and Australia. Shortcomings were evident in several areas, including data quality-assurance, the accuracy of spectral correction factors used to correct EEMs, and the treatment of optically dense samples. Data corrected by participants according to individual laboratory procedures were more variable than when corrected under a standard protocol. Wavelength dependency in measurement precision and accuracy were observed within and between instruments, even in corrected data. In an effort to reduce future occurrences of similar problems, algorithms for correcting and calibrating EEMs are described in detail, and MATLAB scripts for implementing the study's protocol are provided. Combined with the recent expansion of spectral fluorescence standards, this approach will serve to increase the intercomparability of DOM fluorescence studies.","language":"English","publisher":"ACS Publications","publisherLocation":"Washington, D.C.","doi":"10.1021/es102362t","usgsCitation":"Murphy, K.R., Butler, K.D., Spencer, R., Stedmon, C.A., Boehme, J.R., and Aiken, G.R., 2010, Measurement of dissolved organic matter fluorescense in aquatic environments: An interlaboratory comparison: Environmental Science & Technology, v. 44, no. 24, p. 9405-9412, https://doi.org/10.1021/es102362t.","productDescription":"8 p.","startPage":"9405","endPage":"9412","costCenters":[{"id":145,"text":"Branch of Regional Research-Central Region","active":false,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":204534,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"44","issue":"24","noUsgsAuthors":false,"publicationDate":"2010-11-11","publicationStatus":"PW","scienceBaseUri":"505a52fce4b0c8380cd6c7d6","contributors":{"authors":[{"text":"Murphy, Kathleen R.","contributorId":61714,"corporation":false,"usgs":true,"family":"Murphy","given":"Kathleen","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":349187,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Butler, Kenna D. 0000-0001-9604-4603 kebutler@usgs.gov","orcid":"https://orcid.org/0000-0001-9604-4603","contributorId":178885,"corporation":false,"usgs":true,"family":"Butler","given":"Kenna","email":"kebutler@usgs.gov","middleInitial":"D.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":349189,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Spencer, Robert G. M.","contributorId":28866,"corporation":false,"usgs":true,"family":"Spencer","given":"Robert G. M.","affiliations":[],"preferred":false,"id":349186,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stedmon, Colin A.","contributorId":10679,"corporation":false,"usgs":true,"family":"Stedmon","given":"Colin","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":349185,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Boehme, Jennifer R.","contributorId":69849,"corporation":false,"usgs":true,"family":"Boehme","given":"Jennifer","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":349188,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Aiken, George R. 0000-0001-8454-0984 graiken@usgs.gov","orcid":"https://orcid.org/0000-0001-8454-0984","contributorId":1322,"corporation":false,"usgs":true,"family":"Aiken","given":"George","email":"graiken@usgs.gov","middleInitial":"R.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":349184,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70003973,"text":"70003973 - 2010 - The impact of conservation on the status of the world's vertebrates","interactions":[],"lastModifiedDate":"2012-02-02T00:15:59","indexId":"70003973","displayToPublicDate":"2012-01-05T11:15:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"The impact of conservation on the status of the world's vertebrates","docAbstract":"Using data for 25,780 species categorized on the International Union for Conservation of Nature Red List, we present an assessment of the status of the world's vertebrates. One-fifth of species are classified as Threatened, and we show that this figure is increasing: On average, 52 species of mammals, birds, and amphibians move one category closer to extinction each year. However, this overall pattern conceals the impact of conservation successes, and we show that the rate of deterioration would have been at least one-fifth again as much in the absence of these. Nonetheless, current conservation efforts remain insufficient to offset the main drivers of biodiversity loss in these groups: agricultural expansion, logging, overexploitation, and invasive alien species.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Association for the Advancement of Science","publisherLocation":"Washington, D.C.","doi":"10.1126/science.1194442","usgsCitation":"Hoffmann, M., Hilton-Taylor, C., Angulo, A., Bohm, M., Brooks, T., Butchart, S.H., Carpenter, K.E., Chanson, J., Collen, B., Cox, N.A., Darwall, W.R., Dulvy, N.K., Harrison, L.R., Katariya, V., Pollock, C.M., Quader, S., Richman, N.I., Rodrigues, A.S., Tognelli, M.F., Vie, J., Aguiar, J.M., Allen, D.J., Allen, G.R., Amori, G., Ananjeva, N.B., Androene, F., Andrew, P., Ortiz, A.L., Baillie, J.E., Baldi, R., Bell, B.D., Biju, S., Bird, J.P., Black-Decima, P., Blanc, J.J., Bolanos, F., 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,{"id":70003730,"text":"70003730 - 2010 - Estimation of aquifer scale proportion using equal area grids: assessment of regional scale groundwater quality","interactions":[],"lastModifiedDate":"2012-06-16T01:01:36","indexId":"70003730","displayToPublicDate":"2012-01-01T13:49:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Estimation of aquifer scale proportion using equal area grids: assessment of regional scale groundwater quality","docAbstract":"The proportion of an aquifer with constituent concentrations above a specified threshold (high concentrations) is taken as a nondimensional measure of regional scale water quality. If computed on the basis of area, it can be referred to as the aquifer scale proportion. A spatially unbiased estimate of aquifer scale proportion and a confidence interval for that estimate are obtained through the use of equal area grids and the binomial distribution. Traditionally, the confidence interval for a binomial proportion is computed using either the standard interval or the exact interval. Research from the statistics literature has shown that the standard interval should not be used and that the exact interval is overly conservative. On the basis of coverage probability and interval width, the Jeffreys interval is preferred. If more than one sample per cell is available, cell declustering is used to estimate the aquifer scale proportion, and Kish's design effect may be useful for estimating an effective number of samples. The binomial distribution is also used to quantify the adequacy of a grid with a given number of cells for identifying a small target, defined as a constituent that is present at high concentrations in a small proportion of the aquifer. Case studies illustrate a consistency between approaches that use one well per grid cell and many wells per cell. The methods presented in this paper provide a quantitative basis for designing a sampling program and for utilizing existing data.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Water Resources Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington, D.C.","doi":"10.1029/2010WR009321","usgsCitation":"Belitz, K., Jurgens, B., Landon, M.K., Fram, M.S., and Johnson, T.D., 2010, Estimation of aquifer scale proportion using equal area grids: assessment of regional scale groundwater quality: Water Resources Research, v. 46, 14 p.; W11550, https://doi.org/10.1029/2010WR009321.","productDescription":"14 p.; W11550","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":257645,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":257637,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2010WR009321","linkFileType":{"id":5,"text":"html"}}],"country":"United States","volume":"46","noUsgsAuthors":false,"publicationDate":"2010-11-24","publicationStatus":"PW","scienceBaseUri":"505a0b7de4b0c8380cd52742","contributors":{"authors":[{"text":"Belitz, Kenneth 0000-0003-4481-2345 kbelitz@usgs.gov","orcid":"https://orcid.org/0000-0003-4481-2345","contributorId":442,"corporation":false,"usgs":true,"family":"Belitz","given":"Kenneth","email":"kbelitz@usgs.gov","affiliations":[{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true},{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true},{"id":503,"text":"Office of Water Quality","active":true,"usgs":true},{"id":376,"text":"Massachusetts Water Science Center","active":true,"usgs":true},{"id":466,"text":"New England Water Science Center","active":true,"usgs":true}],"preferred":true,"id":348559,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jurgens, Bryant C. 0000-0002-1572-113X bjurgens@usgs.gov","orcid":"https://orcid.org/0000-0002-1572-113X","contributorId":1503,"corporation":false,"usgs":true,"family":"Jurgens","given":"Bryant C.","email":"bjurgens@usgs.gov","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":false,"id":348562,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Landon, Matthew K. 0000-0002-5766-0494 landon@usgs.gov","orcid":"https://orcid.org/0000-0002-5766-0494","contributorId":392,"corporation":false,"usgs":true,"family":"Landon","given":"Matthew","email":"landon@usgs.gov","middleInitial":"K.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":348558,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fram, Miranda S. 0000-0002-6337-059X mfram@usgs.gov","orcid":"https://orcid.org/0000-0002-6337-059X","contributorId":1156,"corporation":false,"usgs":true,"family":"Fram","given":"Miranda","email":"mfram@usgs.gov","middleInitial":"S.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":348560,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Johnson, Tyler D. 0000-0002-7334-9188 tyjohns@usgs.gov","orcid":"https://orcid.org/0000-0002-7334-9188","contributorId":1440,"corporation":false,"usgs":true,"family":"Johnson","given":"Tyler","email":"tyjohns@usgs.gov","middleInitial":"D.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":false,"id":348561,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70039775,"text":"70039775 - 2010 - Two-dimensional hydrodynamic modeling to quantify effects of peak-flow management on channel morphology and salmon-spawning habitat in the Cedar River, Washington","interactions":[],"lastModifiedDate":"2012-08-31T01:01:45","indexId":"70039775","displayToPublicDate":"2012-01-01T12:39:35","publicationYear":"2010","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"seriesTitle":{"id":371,"text":"Monograph","active":false,"publicationSubtype":{"id":6}},"title":"Two-dimensional hydrodynamic modeling to quantify effects of peak-flow management on channel morphology and salmon-spawning habitat in the Cedar River, Washington","docAbstract":"The Cedar River in Washington State originates on the western slope of the Cascade Range and provides the City of Seattle with most of its drinking water, while also supporting a productive salmon habitat. Water-resource managers require detailed information on how best to manage high-flow releases from Chester Morse Lake, a large reservoir on the Cedar River, during periods of heavy precipitation to minimize flooding, while mitigating negative effects on fish populations. Instream flow-management practices include provisions for adaptive management to promote and maintain healthy aquatic habitat in the river system. The current study is designed to understand the linkages between peak flow characteristics, geomorphic processes, riverine habitat, and biological responses. Specifically, two-dimensional hydrodynamic modeling is used to simulate and quantify the effects of the peak-flow magnitude, duration, and frequency on the channel morphology and salmon-spawning habitat. Two study reaches, representative of the typical geomorphic and ecologic characteristics of the Cedar River, were selected for the modeling. Detailed bathymetric data, collected with a real-time kinematic global positioning system and an acoustic Doppler current profiler, were combined with a LiDAR-derived digital elevation model in the overbank area to develop a computational mesh. The model is used to simulate water velocity, benthic shear stress, flood inundation, and morphologic changes in the gravel-bedded river under the current and alternative flood-release strategies. Simulations of morphologic change and salmon-redd scour by floods of differing magnitude and duration enable water-resource managers to incorporate model simulation results into adaptive management of peak flows in the Cedar River.  PDF version of a presentation on hydrodynamic modelling in the Cedar River in Washington state. Presented at the American Geophysical Union Fall Meeting 2010.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/70039775","usgsCitation":"Czuba, C., Czuba, J., Gendaszek, A.S., and Magirl, C.S., 2010, Two-dimensional hydrodynamic modeling to quantify effects of peak-flow management on channel morphology and salmon-spawning habitat in the Cedar River, Washington: Monograph, 1 Sheet: 48 x 36 inches, https://doi.org/10.3133/70039775.","productDescription":"1 Sheet: 48 x 36 inches","numberOfPages":"1","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"links":[{"id":260046,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":260043,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://wa.water.usgs.gov/projects/cedarriverpeakflows/data/czuba_AGU_2010.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Washington","otherGeospatial":"Cedar River","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb995e4b08c986b327c94","contributors":{"authors":[{"text":"Czuba, Christiana cczuba@usgs.gov","contributorId":73864,"corporation":false,"usgs":true,"family":"Czuba","given":"Christiana","email":"cczuba@usgs.gov","affiliations":[],"preferred":false,"id":466922,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Czuba, Jonathan A.","contributorId":19917,"corporation":false,"usgs":true,"family":"Czuba","given":"Jonathan A.","affiliations":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":false,"id":466921,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gendaszek, Andrew S. 0000-0002-2373-8986 agendasz@usgs.gov","orcid":"https://orcid.org/0000-0002-2373-8986","contributorId":3509,"corporation":false,"usgs":true,"family":"Gendaszek","given":"Andrew","email":"agendasz@usgs.gov","middleInitial":"S.","affiliations":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":true,"id":466920,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Magirl, Christopher S. 0000-0002-9922-6549 magirl@usgs.gov","orcid":"https://orcid.org/0000-0002-9922-6549","contributorId":1822,"corporation":false,"usgs":true,"family":"Magirl","given":"Christopher","email":"magirl@usgs.gov","middleInitial":"S.","affiliations":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true},{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":true,"id":466919,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70039774,"text":"70039774 - 2010 - Geomorphic Framework to assess changes to aquatic habitat due to flow regulation and channel and floodplain alteration, Cedar River, Washington","interactions":[],"lastModifiedDate":"2012-08-31T01:01:45","indexId":"70039774","displayToPublicDate":"2012-01-01T12:25:02","publicationYear":"2010","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"seriesTitle":{"id":371,"text":"Monograph","active":false,"publicationSubtype":{"id":6}},"title":"Geomorphic Framework to assess changes to aquatic habitat due to flow regulation and channel and floodplain alteration, Cedar River, Washington","docAbstract":"Flow regulation, bank armoring, and floodplain alteration since the early 20th century have contributed to significant changes in the hydrologic regime and geomorphic processes of the Cedar River in Washington State. The Cedar River originates in the Cascade Range, provides drinking water to the Seattle metropolitan area, and supports several populations of anadromous salmonids. Flow regulation currently has limited influence on the magnitude, duration, and timing of high-flow events, which affect the incubation of salmonids as well as the production and maintenance of their habitat. Unlike structural changes to the channel and floodplain, flow regulation may be modified in the short-term to improve the viability of salmon populations. An understanding of the effects of flow regulation on those populations must be discerned over a range of scales from individual floods that affect the size of individual year classes to decadal high flow regime that influences the amount and quality of channel and off-channel habitat available for spawning and rearing. We present estimates of reach-scale sediment budgets and changes to channel morphology derived from historical orthoimagery, specific gage analyses at four long-term streamflow-gaging stations to quantify trends in aggradation, and hydrologic statistics of the magnitude and duration of peak streamflows. These data suggest a gradient of channel types from unconfined, sediment-rich segments to confined, sediment-poor segments that are likely to have distinct responses to high flows. Particle-size distribution data and longitudinal water surface and streambed profiles for the 56 km downstream of Chester Morse Lake measured in 2010 show the spatial extent of preferred salmonid habitat along the Cedar River. These historical and current data constitute a geomorphic framework to help assess different river management scenarios for salmonid habitat and population viability.  PDF version of a presentation on changes to aquatic habitat at the Cedar River in Washington state. Presented at the American Geophysical Union Fall Meeting 2010.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/70039774","usgsCitation":"Gendaszek, A.S., Magirl, C.S., Czuba, C.R., Konrad, C.P., and Little, R., 2010, Geomorphic Framework to assess changes to aquatic habitat due to flow regulation and channel and floodplain alteration, Cedar River, Washington: Monograph, 1 Sheet: 48 x 36 inches, https://doi.org/10.3133/70039774.","productDescription":"1 Sheet: 48 x 36 inches","numberOfPages":"1","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"links":[{"id":260050,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":260042,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://wa.water.usgs.gov/projects/cedarriverpeakflows/data/gendaszek_AGU_2010.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Washington","otherGeospatial":"Cedar River","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2779e4b0c8380cd5990f","contributors":{"authors":[{"text":"Gendaszek, Andrew S. 0000-0002-2373-8986 agendasz@usgs.gov","orcid":"https://orcid.org/0000-0002-2373-8986","contributorId":3509,"corporation":false,"usgs":true,"family":"Gendaszek","given":"Andrew","email":"agendasz@usgs.gov","middleInitial":"S.","affiliations":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":true,"id":466916,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Magirl, Christopher S. 0000-0002-9922-6549 magirl@usgs.gov","orcid":"https://orcid.org/0000-0002-9922-6549","contributorId":1822,"corporation":false,"usgs":true,"family":"Magirl","given":"Christopher","email":"magirl@usgs.gov","middleInitial":"S.","affiliations":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true},{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":true,"id":466915,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Czuba, Christiana R. cczuba@usgs.gov","contributorId":4555,"corporation":false,"usgs":true,"family":"Czuba","given":"Christiana","email":"cczuba@usgs.gov","middleInitial":"R.","affiliations":[{"id":392,"text":"Minnesota Water Science Center","active":true,"usgs":true}],"preferred":false,"id":466917,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Konrad, Christopher P. 0000-0002-7354-547X cpkonrad@usgs.gov","orcid":"https://orcid.org/0000-0002-7354-547X","contributorId":1716,"corporation":false,"usgs":true,"family":"Konrad","given":"Christopher","email":"cpkonrad@usgs.gov","middleInitial":"P.","affiliations":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":true,"id":466914,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Little, Rand","contributorId":39630,"corporation":false,"usgs":true,"family":"Little","given":"Rand","email":"","affiliations":[],"preferred":false,"id":466918,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70039772,"text":"70039772 - 2010 - Glacier modeling in support of field observations of mass balance at South Cascade Glacier, Washington, USA","interactions":[],"lastModifiedDate":"2012-08-31T01:01:45","indexId":"70039772","displayToPublicDate":"2012-01-01T11:59:00","publicationYear":"2010","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"seriesTitle":{"id":371,"text":"Monograph","active":false,"publicationSubtype":{"id":6}},"title":"Glacier modeling in support of field observations of mass balance at South Cascade Glacier, Washington, USA","docAbstract":"The long-term USGS measurement and reporting of mass balance at South Cascade Glacier was assisted in balance years 2006 and 2007 by a new mass balance model. The model incorporates a temperature-index melt computation and accumulation is modeled from glacier air temperature and gaged precipitation at a remote site. Mass balance modeling was used with glaciological measurements to estimate dates and magnitudes of critical mass balance phenomena. In support of the modeling, a detailed analysis was made of the \"glacier cooling effect\" that reduces summer air temperature near the ice surface as compared to that predicted on the basis of a spatially uniform temperature lapse rate. The analysis was based on several years of data from measurements of near-surface air temperature on the glacier. The 2006 and 2007 winter balances of South Cascade Glacier, computed with this new, model-augmented methodology, were 2.61 and 3.41 mWE, respectively. The 2006 and 2007 summer balances were -4.20 and -3.63 mWE, respectively, and the 2006 and 2007 net balances were -1.59 and -0.22 mWE.  PDF version of a presentation on the mass balance of South Cascade Glacier in Washington state. Presented at the American Geophysical Union Fall Meeting 2010.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/70039772","usgsCitation":"Josberger, E.G., and Bidlake, W.R., 2010, Glacier modeling in support of field observations of mass balance at South Cascade Glacier, Washington, USA: Monograph, 1 Sheet: 48 x 36 inches, https://doi.org/10.3133/70039772.","productDescription":"1 Sheet: 48 x 36 inches","numberOfPages":"1","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"links":[{"id":260049,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":260041,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://wa.water.usgs.gov/projects/glacier/data/bidlake_AGU_2010.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Washington","otherGeospatial":"South Cascade Glacier","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2917e4b0c8380cd5a68d","contributors":{"authors":[{"text":"Josberger, Edward G. ejosberg@usgs.gov","contributorId":1710,"corporation":false,"usgs":true,"family":"Josberger","given":"Edward","email":"ejosberg@usgs.gov","middleInitial":"G.","affiliations":[],"preferred":true,"id":466908,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bidlake, William R. wbidlake@usgs.gov","contributorId":1712,"corporation":false,"usgs":true,"family":"Bidlake","given":"William","email":"wbidlake@usgs.gov","middleInitial":"R.","affiliations":[],"preferred":true,"id":466909,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70003371,"text":"70003371 - 2010 - Use of regression‐based models to map sensitivity of aquatic resources to atmospheric deposition in Yosemite National Park, USA","interactions":[],"lastModifiedDate":"2018-04-03T14:22:23","indexId":"70003371","displayToPublicDate":"2012-01-01T11:49:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Use of regression‐based models to map sensitivity of aquatic resources to atmospheric deposition in Yosemite National Park, USA","docAbstract":"<p><span>An abundance of exposed bedrock, sparse soil and vegetation, and fast hydrologic flushing rates make aquatic ecosystems in Yosemite National Park susceptible to nutrient enrichment and episodic acidification due to atmospheric deposition of nitrogen (N) and sulfur (S). In this study, multiple linear regression (MLR) models were created to estimate fall‐season nitrate and acid neutralizing capacity (ANC) in surface water in Yosemite wilderness. Input data included estimated winter N deposition, fall‐season surface‐water chemistry measurements at 52 sites, and basin characteristics derived from geographic information system layers of topography, geology, and vegetation. The MLR models accounted for 84% and 70% of the variance in surface‐water nitrate and ANC, respectively. Explanatory variables (and the sign of their coefficients) for nitrate included elevation (positive) and the abundance of neoglacial and talus deposits (positive), unvegetated terrain (positive), alluvium (negative), and riparian (negative) areas in the basins. Explanatory variables for ANC included basin area (positive) and the abundance of metamorphic rocks (positive), unvegetated terrain (negative), water (negative), and winter N deposition (negative) in the basins. The MLR equations were applied to 1407 stream reaches delineated in the National Hydrography Data Set for Yosemite, and maps of predicted surface‐water nitrate and ANC concentrations were created. Predicted surface‐water nitrate concentrations were highest in small, high‐elevation cirques, and concentrations declined downstream. Predicted ANC concentrations showed the opposite pattern, except in high‐elevation areas underlain by metamorphic rocks along the Sierran Crest, which had relatively high predicted ANC (&gt;200&nbsp;</span><i>μ</i><span>eq L</span><sup>−1</sup><span>). Maps were created to show where basin characteristics predispose aquatic resources to nutrient enrichment and acidification effects from N and S deposition. The maps can be used to help guide development of water‐quality programs designed to monitor and protect natural resources in national parks.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2009WR008316","usgsCitation":"Clow, D.W., Nanus, L., and Huggett, B., 2010, Use of regression‐based models to map sensitivity of aquatic resources to atmospheric deposition in Yosemite National Park, USA: Water Resources Research, v. 46, no. 9, Article W09529; 14 p., https://doi.org/10.1029/2009WR008316.","productDescription":"Article W09529; 14 p.","costCenters":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"links":[{"id":475521,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2009wr008316","text":"Publisher Index Page"},{"id":257918,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Yosemite Nataional Park","volume":"46","issue":"9","noUsgsAuthors":false,"publicationDate":"2010-09-24","publicationStatus":"PW","scienceBaseUri":"505bbf6be4b08c986b329b52","contributors":{"authors":[{"text":"Clow, David W. 0000-0001-6183-4824 dwclow@usgs.gov","orcid":"https://orcid.org/0000-0001-6183-4824","contributorId":1671,"corporation":false,"usgs":true,"family":"Clow","given":"David","email":"dwclow@usgs.gov","middleInitial":"W.","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":347040,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nanus, Leora","contributorId":27930,"corporation":false,"usgs":true,"family":"Nanus","given":"Leora","email":"","affiliations":[],"preferred":false,"id":347041,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Huggett, Brian","contributorId":33164,"corporation":false,"usgs":true,"family":"Huggett","given":"Brian","email":"","affiliations":[],"preferred":false,"id":347042,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70039288,"text":"ds546 - 2010 - Water-quality, water-level, and discharge data associated with the Mississippi embayment agricultural chemical-transport study, 2006-2008","interactions":[],"lastModifiedDate":"2012-08-02T01:01:49","indexId":"ds546","displayToPublicDate":"2012-01-01T10:58:26","publicationYear":"2010","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":310,"text":"Data Series","code":"DS","onlineIssn":"2327-638X","printIssn":"2327-0271","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"546","title":"Water-quality, water-level, and discharge data associated with the Mississippi embayment agricultural chemical-transport study, 2006-2008","docAbstract":"In 2006, the Agricultural Chemicals: Sources, Transport and Fate study team (Agricultural Chemicals Team, ACT) of the U.S. Geological Survey National Water-Quality Assessment Program began a study in northwestern Mississippi to evaluate the influence of surface-water recharge on the occurrence of agriculturally related nutrients and pesticides in the Mississippi River Valley alluvial aquifer. The ACT study was composed in the Bogue Phalia Basin, an indicator watershed within the National Water-Quality Assessment Program Mississippi Embayment Study Unit and utilized several small, subbasins within the Bogue Phalia to evaluate surface and groundwater interaction and chemical transport in the Basin. Data collected as part of this ACT study include water-quality data from routine and incident-driven water samples evaluated for major ions, nutrients, organic carbon, physical properties, and commonly used pesticides in the area; discharge, gage height and water-level data for surface-water sites, the shallow alluvial aquifer, and hyporheic zone; additionally, agricultural data and detailed management activities were reported by land managers for farms within two subbasins of the Bogue Phalia Basin&mdash;Tommie Bayou at Pace, MS, and an unnamed tributary to Clear Creek near Napanee, MS.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ds546","usgsCitation":"Dalton, M.S., Rose, C.E., and Coupe, R.H., 2010, Water-quality, water-level, and discharge data associated with the Mississippi embayment agricultural chemical-transport study, 2006-2008: U.S. Geological Survey Data Series 546, vii, 60 p.; Tables; col. ill.; maps (col.), https://doi.org/10.3133/ds546.","productDescription":"vii, 60 p.; Tables; col. ill.; maps (col.)","startPage":"i","endPage":"60","numberOfPages":"72","additionalOnlineFiles":"N","costCenters":[{"id":394,"text":"Mississippi Water Science Center","active":true,"usgs":true}],"links":[{"id":259365,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ds_546.jpg"},{"id":259355,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/ds/546/","linkFileType":{"id":5,"text":"html"}},{"id":259356,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/ds/546/pdf/ds-546.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Mississippi","otherGeospatial":"Mississippi Embayment","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bce66e4b08c986b32e39c","contributors":{"authors":[{"text":"Dalton, Melinda S. 0000-0002-2929-5573 msdalton@usgs.gov","orcid":"https://orcid.org/0000-0002-2929-5573","contributorId":267,"corporation":false,"usgs":true,"family":"Dalton","given":"Melinda","email":"msdalton@usgs.gov","middleInitial":"S.","affiliations":[{"id":509,"text":"Office of the Associate Director for Water","active":true,"usgs":true},{"id":316,"text":"Georgia Water Science Center","active":true,"usgs":true}],"preferred":true,"id":465966,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rose, Claire E. 0000-0002-5519-3538 cerose@usgs.gov","orcid":"https://orcid.org/0000-0002-5519-3538","contributorId":2317,"corporation":false,"usgs":true,"family":"Rose","given":"Claire","email":"cerose@usgs.gov","middleInitial":"E.","affiliations":[{"id":24708,"text":"Lower Mississippi-Gulf Water Science Center","active":true,"usgs":true}],"preferred":true,"id":465968,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Coupe, Richard H. 0000-0001-8679-1015 rhcoupe@usgs.gov","orcid":"https://orcid.org/0000-0001-8679-1015","contributorId":551,"corporation":false,"usgs":true,"family":"Coupe","given":"Richard","email":"rhcoupe@usgs.gov","middleInitial":"H.","affiliations":[{"id":394,"text":"Mississippi Water Science Center","active":true,"usgs":true}],"preferred":true,"id":465967,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70006050,"text":"70006050 - 2010 - Are wolves saving Yellowstone's aspen? A landscape-level test of a behaviorally mediated trophic cascade","interactions":[],"lastModifiedDate":"2012-06-09T01:01:37","indexId":"70006050","displayToPublicDate":"2012-01-01T10:13:04","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1465,"text":"Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Are wolves saving Yellowstone's aspen? A landscape-level test of a behaviorally mediated trophic cascade","docAbstract":"Behaviorally mediated trophic cascades (BMTCs) occur when the fear of predation among herbivores enhances plant productivity. Based primarily on systems involving small-bodied predators, BMTCs have been proposed as both strong and ubiquitous in natural ecosystems. Recently, however, synthetic work has suggested that the existence of BMTCs may be mediated by predator hunting mode, whereby passive (sit-and-wait) predators have much stronger effects than active (coursing) predators. One BMTC that has been proposed for a wide-ranging active predator system involves the reintroduction of wolves (<i>Canis lupus</i>) to Yellowstone National Park, USA, which is thought to be leading to a recovery of trembling aspen (<i>Populus tremuloides</i>) by causing elk (<i>Cervus elaphus</i>) to avoid foraging in risky areas. Although this BMTC has been generally accepted and highly popularized, it has never been adequately tested. We assessed whether wolves influence aspen by obtaining detailed demographic data on aspen stands using tree rings and by monitoring browsing levels in experimental elk exclosures arrayed across a gradient of predation risk for three years. Our study demonstrates that the historical failure of aspen to regenerate varied widely among stands (last recruitment year ranged from 1892 to 1956), and our data do not indicate an abrupt cessation of recruitment. This pattern of recruitment failure appears more consistent with a gradual increase in elk numbers rather than a rapid behavioral shift in elk foraging following wolf extirpation. In addition, our estimates of relative survivorship of young browsable aspen indicate that aspen are not currently recovering in Yellowstone, even in the presence of a large wolf population. Finally, in an experimental test of the BMTC hypothesis we found that the impacts of elk browsing on aspen demography are not diminished in sites where elk are at higher risk of predation by wolves. These findings suggest the need to further evaluate how trophic cascades are mediated by predator&ndash;prey life history and ecological context.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Ecological Society of America","publisherLocation":"Ithaca, NY","doi":"10.1890/09-1949.1","usgsCitation":"Kauffman, M., Brodie, J.F., and Jules, E.S., 2010, Are wolves saving Yellowstone's aspen? A landscape-level test of a behaviorally mediated trophic cascade: Ecology, v. 91, no. 9, p. 2742-2755, https://doi.org/10.1890/09-1949.1.","productDescription":"14 p.","startPage":"2742","endPage":"2755","costCenters":[{"id":683,"text":"Wyoming Cooperative Fish and Wildlife Research Unit","active":false,"usgs":true}],"links":[{"id":257381,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":257365,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1890/09-1949.1","linkFileType":{"id":5,"text":"html"}}],"country":"United States","otherGeospatial":"Yellowstone","volume":"91","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ed64e4b0c8380cd497b7","contributors":{"authors":[{"text":"Kauffman, Matthew J. 0000-0003-0127-3900 mkauffman@usgs.gov","orcid":"https://orcid.org/0000-0003-0127-3900","contributorId":2963,"corporation":false,"usgs":true,"family":"Kauffman","given":"Matthew J.","email":"mkauffman@usgs.gov","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":353736,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brodie, Jedediah F.","contributorId":9110,"corporation":false,"usgs":true,"family":"Brodie","given":"Jedediah","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":353737,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jules, Erik S.","contributorId":13854,"corporation":false,"usgs":true,"family":"Jules","given":"Erik","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":353738,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70039605,"text":"70039605 - 2010 - Discussion of \"Natural hydrograph of the Missouri River near Sioux City and the least tern and piping plover\" by Donald G. Jorgensen","interactions":[],"lastModifiedDate":"2012-08-16T01:02:05","indexId":"70039605","displayToPublicDate":"2012-01-01T09:44:15","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2341,"text":"Journal of Hydrologic Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Discussion of \"Natural hydrograph of the Missouri River near Sioux City and the least tern and piping plover\" by Donald G. Jorgensen","docAbstract":"The author analyzed stream-flow data from a single gauging station to predict preengineering flooding frequency for \"sandbar islands adjacent to stream gauge on the Missouri River at Sioux City.\" He predicted dates that sandbars would be exposed and discussed his results relative to reproduction by least terns (Sternula antillarum) and piping plovers (Charadrius melodus). His analysis predicted sandbar inundation during nesting and concluded that \"successful migrations of age-zero juveniles leading to recruitment would not have resulted from the use of the sandbar islands for attempted reproduction most years in the Sioux City area.\" We argue that the author (1) overlooked published historical records of breeding terns and plovers on the Missouri River and nearby systems, (2) inaccurately portrayed inundation for Missouri River sandbars and the importance of high flows for forming sandbars, and (3) underestimated these species' ability to withstand periodic reproductive failures. We conclude that the data do not support the author's contention that the preengineered Missouri River was \"unfriendly\" to terns and plovers.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrologic Engineering","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"ASCE","publisherLocation":"Reston, VA","doi":"10.1061/(ASCE)HE.1943-5584.0000265","usgsCitation":"Catlin, D., Jacobson, R., Sherfy, M., Anteau, M., Felio, J., Fraser, J., Lott, C., Shaffer, T., and Stucker, J., 2010, Discussion of \"Natural hydrograph of the Missouri River near Sioux City and the least tern and piping plover\" by Donald G. Jorgensen: Journal of Hydrologic Engineering, v. 15, no. 12, p. 1076-1078, https://doi.org/10.1061/(ASCE)HE.1943-5584.0000265.","productDescription":"3 p.","startPage":"1076","endPage":"1078","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":259613,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":259604,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1061/(ASCE)HE.1943-5584.0000265","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Iowa","city":"Sioux City","otherGeospatial":"Missouri River","volume":"15","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a01fee4b0c8380cd4fe2f","contributors":{"authors":[{"text":"Catlin, D.","contributorId":22621,"corporation":false,"usgs":true,"family":"Catlin","given":"D.","email":"","affiliations":[],"preferred":false,"id":466550,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jacobson, R.","contributorId":55373,"corporation":false,"usgs":true,"family":"Jacobson","given":"R.","email":"","affiliations":[],"preferred":false,"id":466551,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sherfy, M.","contributorId":108357,"corporation":false,"usgs":true,"family":"Sherfy","given":"M.","affiliations":[],"preferred":false,"id":466556,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Anteau, M.","contributorId":18222,"corporation":false,"usgs":true,"family":"Anteau","given":"M.","email":"","affiliations":[],"preferred":false,"id":466549,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Felio, J.","contributorId":13090,"corporation":false,"usgs":true,"family":"Felio","given":"J.","email":"","affiliations":[],"preferred":false,"id":466548,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Fraser, J.","contributorId":74223,"corporation":false,"usgs":true,"family":"Fraser","given":"J.","email":"","affiliations":[],"preferred":false,"id":466554,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Lott, C.","contributorId":87799,"corporation":false,"usgs":true,"family":"Lott","given":"C.","email":"","affiliations":[],"preferred":false,"id":466555,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Shaffer, T.","contributorId":71749,"corporation":false,"usgs":true,"family":"Shaffer","given":"T.","email":"","affiliations":[],"preferred":false,"id":466553,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Stucker, J.","contributorId":67353,"corporation":false,"usgs":true,"family":"Stucker","given":"J.","affiliations":[],"preferred":false,"id":466552,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70004673,"text":"70004673 - 2010 - Surveys for presence of Oregon spotted frog (Rana pretiosa): background information and field methods","interactions":[],"lastModifiedDate":"2012-07-11T01:01:42","indexId":"70004673","displayToPublicDate":"2012-01-01T09:26:00","publicationYear":"2010","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":4,"text":"Other Government Series"},"seriesTitle":{"id":260,"text":"Interagency Special Status / Sensitive Species Program (ISSSSP)","active":false,"publicationSubtype":{"id":4}},"title":"Surveys for presence of Oregon spotted frog (Rana pretiosa): background information and field methods","docAbstract":"The Oregon spotted frog (Rana pretiosa) is the most aquatic of the native frogs in the Pacific Northwest. The common name derives from the pattern of black, ragged-edged spots set against a brown or red ground color on the dorsum of adult frogs. Oregon spotted frogs are generally associated with wetland complexes that have several aquatic habitat types and sizeable coverage of emergent vegetation. Like other ranid frogs native to the Northwest, Oregon spotted frogs breed in spring, larvae transform in summer of their breeding year, and adults tend to be relatively short lived (3-5 yrs). Each life stage (egg, tadpole, juvenile and adult) has characteristics that present challenges for detection. Breeding can be explosive and completed within 1-2 weeks. Egg masses are laid in aggregations, often in a few locations in large areas of potential habitat. Egg masses can develop, hatch, and disintegrate in <2 weeks during warm weather. Tadpoles can be difficult to identify, have low survival, and spend most of their 3-4 months hidden in vegetation or flocculant substrates. Juveniles and adults are often difficult to capture and can spend summers away from breeding areas. Moreover, a substantial portion of extant populations are of limited size (<100 breeding adults), and field densities of all life stages are often low. An understanding of the biology of the species and use of multiple visits are thus important for assessing presence of Oregon spotted frogs. This report is meant to be a resource for USDA Region 6 Forest Service (FS) and OR/WA Bureau of Land Management (BLM) personnel tasked with surveying for the presence of Oregon spotted frogs. Our objective was to summarize information to improve the efficiency of field surveys and increase chances of detection if frogs are present. We include overviews of historical and extant ranges of Oregon spotted frog. We briefly summarize what is known of Oregon spotted frog habitat associations and review aspects of behavior and ecology that are likely to affect detectability in the field. We summarize characteristics that can help differentiate Oregon spotted frog life stages from other northwestern ranid frogs encountered during surveys. Appendices include examples of data collection formats and a protocol for disinfecting field gear.","language":"English","publisher":"U.S. Forest Service","publisherLocation":"Washington, D.C.","usgsCitation":"Pearl, C.A., Clayton, D., and Turner, L., 2010, Surveys for presence of Oregon spotted frog (Rana pretiosa): background information and field methods: Interagency Special Status / Sensitive Species Program (ISSSSP), 48 p.; Appendices.","productDescription":"48 p.; Appendices","numberOfPages":"49","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":258333,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":112034,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://www.fs.fed.us/r6/sfpnw/issssp/documents/inventories/inv-sp-ha-rapr-2010.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba2a6e4b08c986b31f86a","contributors":{"authors":[{"text":"Pearl, Christopher A. 0000-0003-2943-7321 christopher_pearl@usgs.gov","orcid":"https://orcid.org/0000-0003-2943-7321","contributorId":3131,"corporation":false,"usgs":true,"family":"Pearl","given":"Christopher","email":"christopher_pearl@usgs.gov","middleInitial":"A.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":false,"id":351078,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Clayton, David","contributorId":42080,"corporation":false,"usgs":true,"family":"Clayton","given":"David","email":"","affiliations":[],"preferred":false,"id":351079,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Turner, Lauri","contributorId":104329,"corporation":false,"usgs":true,"family":"Turner","given":"Lauri","email":"","affiliations":[],"preferred":false,"id":351080,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
]}