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Distribution and mapping of the snail Cerithideopsis (Cerithidea) californica at Carpinteria Salt Marsh, California USA, June to August 2012 We collected detailed spatial data on the density and size distribution of intertidal snails as part of a broader effort to understand food webs in California estuaries. The survey area was Carpinteria Salt Marsh, California USA, which comprises 9 Ha tidal channels, 2 Ha salt flats, 17 Ha upland habitat, 6 Ha tidal pans, 52 Ha vegetated marsh, 2 Ha tidal flats. Using nearly 4,000 transects in potential snail habitat, we mapped snails throughout the estuary. Specifically, we systematically placed transects at intervals stratified within targeted habitat types: channels, pans, or marsh (or planar habitat that was mixed marsh and pan). At a quarter of the quadrats, we also estimated snail size-frequency distributions.... Categories: Data; Tags: California, Carpinteria, Carpinteria Salt Marsh Reserve, Santa Barbara County, USGS Science Data Catalog (SDC), All tags... distribution, estuary, habitat, mapping, salt marsh, snail, trematodes, Fewer tags Annual California Sea Otter Census - 1985-2014 Spring Census Summary This dataset represents an archived record of annual California sea otter surveys from 1985-2014. Survey procedures involve counting animals during the "spring survey" -- generally beginning in late April or early May and usually ending in late May early June but may extend into early July, depending on weather conditions. Annual surveys are organized by survey year and within each year, three shapefiles are included: census summary of southern sea otter, extra limit counts of southern sea otter, and range extent of southern sea otter. The surveys, conducted cooperatively by scientists of the U.S. Geological Survey, California Department of Fish and Wildlife, U.S. Fish and Wildlife Service and Monterey Bay Aquarium... Categories: Data; Tags: California, Central California Coastal, Coast, Southern California Coastal, USGS Science Data Catalog (SDC), All tags... aerial counts, biota, distribution, environment, ocean, range, sea otter census, sea otters, sea otters, shore counts, Fewer tags Relative probability of Greater Sage-grouse nest occurrence within central region of Wyoming, USA at the combined landscape-patch scale (Filename: wysg_lp_central_nest_rsf.tif). Habitat selection studies can make important contributions to habitat prioritization efforts for species of conservation concern. We present a large-scale collaborative effort to develop habitat selection models for Greater Sage-grouse (Centrocercus urophasianus) across large landscapes (Wyoming, USA) and multiple seasons. Greater Sage-grouse are limited to western semi-arid landscapes in North America, range-wide population declines have been documented, and the species is currently listed a “warranted but precluded” from listing under the U.S. Endangered Species Act. Wyoming is predicted to remain a stronghold for Sage-grouse populations and contains approximately 37% of the remaining birds. We developed Resource... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Centrocercus urophasianus, Greater sage-grouse, United States, WY, Wyoming, All tags... biota, distribution, ecological modeling, environment, functional response, geographic information systems, habitat, logistic regression, persistence, radiotelemetry, range contraction, resource selection function, sage-grouse core regions, sage-grouse late brood-rearing, sage-grouse nesting, sage-grouse seasonal models, sage-grouse winter, Fewer tags Relative probability of Greater Sage-grouse winter occurrence within central region of Wyoming, USA at the combined landscape-patch scale (Filename: wysg_lp_central_winter_rsf.tif). Habitat selection studies can make important contributions to habitat prioritization efforts for species of conservation concern. We present a large-scale collaborative effort to develop habitat selection models for Greater Sage-grouse (Centrocercus urophasianus) across large landscapes (Wyoming, USA) and multiple seasons. Greater Sage-grouse are limited to western semi-arid landscapes in North America, range-wide population declines have been documented, and the species is currently listed a “warranted but precluded” from listing under the U.S. Endangered Species Act. Wyoming is predicted to remain a stronghold for Sage-grouse populations and contains approximately 37% of the remaining birds. We developed Resource... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Centrocercus urophasianus, Greater sage-grouse, United States, WY, Wyoming, All tags... biota, distribution, ecological modeling, environment, functional response, geographic information systems, habitat, logistic regression, persistence, radiotelemetry, range contraction, resource selection function, sage-grouse core regions, sage-grouse late brood-rearing, sage-grouse nesting, sage-grouse seasonal models, sage-grouse winter, Fewer tags Relative probability of Greater Sage-grouse nest occurrence within northeastern region of Wyoming, USA at the combined landscape-patch scale (Filename: wysg_lp_ne_nest_rsf.tif). Habitat selection studies can make important contributions to habitat prioritization efforts for species of conservation concern. We present a large-scale collaborative effort to develop habitat selection models for Greater Sage-grouse (Centrocercus urophasianus) across large landscapes (Wyoming, USA) and multiple seasons. Greater Sage-grouse are limited to western semi-arid landscapes in North America, range-wide population declines have been documented, and the species is currently listed a “warranted but precluded” from listing under the U.S. Endangered Species Act. Wyoming is predicted to remain a stronghold for Sage-grouse populations and contains approximately 37% of the remaining birds. We developed Resource... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Centrocercus urophasianus, Greater sage-grouse, United States, WY, Wyoming, All tags... biota, distribution, ecological modeling, environment, functional response, geographic information systems, habitat, logistic regression, persistence, radiotelemetry, range contraction, resource selection function, sage-grouse core regions, sage-grouse late brood-rearing, sage-grouse nesting, sage-grouse seasonal models, sage-grouse winter, Fewer tags Relative probability of Greater Sage-grouse summer occurrence within central region of Wyoming, USA at the landscape scale (Filename: wysg_p_central_summer_rsf.tif). Habitat selection studies can make important contributions to habitat prioritization efforts for species of conservation concern. We present a large-scale collaborative effort to develop habitat selection models for Greater Sage-grouse (Centrocercus urophasianus) across large landscapes (Wyoming, USA) and multiple seasons. Greater Sage-grouse are limited to western semi-arid landscapes in North America, range-wide population declines have been documented, and the species is currently listed a “warranted but precluded” from listing under the U.S. Endangered Species Act. Wyoming is predicted to remain a stronghold for Sage-grouse populations and contains approximately 37% of the remaining birds. We developed Resource... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Centrocercus urophasianus, Greater sage-grouse, United States, WY, Wyoming, All tags... biota, distribution, ecological modeling, environment, functional response, geographic information systems, habitat, logistic regression, persistence, radiotelemetry, range contraction, resource selection function, sage-grouse core regions, sage-grouse late brood-rearing, sage-grouse nesting, sage-grouse seasonal models, sage-grouse winter, Fewer tags Binary classification for relative probability of Greater Sage-grouse nest occurrence within northeastern Wyoming, USA at the landscape scale (Filename: wysg_l_ne_nest_bin.tif). Habitat selection studies can make important contributions to habitat prioritization efforts for species of conservation concern. We present a large-scale collaborative effort to develop habitat selection models for Greater Sage-grouse (Centrocercus urophasianus) across large landscapes (Wyoming, USA) and multiple seasons. Greater Sage-grouse are limited to western semi-arid landscapes in North America, range-wide population declines have been documented, and the species is currently listed a “warranted but precluded” from listing under the U.S. Endangered Species Act. Wyoming is predicted to remain a stronghold for Sage-grouse populations and contains approximately 37% of the remaining birds. We developed Resource... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Centrocercus urophasianus, Greater sage-grouse, United States, WY, Wyoming, All tags... biota, distribution, ecological modeling, environment, functional response, geographic information systems, habitat, logistic regression, persistence, radiotelemetry, range contraction, resource selection function, sage-grouse core regions, sage-grouse late brood-rearing, sage-grouse nesting, sage-grouse seasonal models, sage-grouse winter, Fewer tags Binned categories for relative probability of Greater Sage-grouse nest occurrence within southwestern region of Wyoming, USA at the landscape scale (Filename: wysg_l_sw_nest_bin.tif). Habitat selection studies can make important contributions to habitat prioritization efforts for species of conservation concern. We present a large-scale collaborative effort to develop habitat selection models for Greater Sage-grouse (Centrocercus urophasianus) across large landscapes (Wyoming, USA) and multiple seasons. Greater Sage-grouse are limited to western semi-arid landscapes in North America, range-wide population declines have been documented, and the species is currently listed a “warranted but precluded” from listing under the U.S. Endangered Species Act. Wyoming is predicted to remain a stronghold for Sage-grouse populations and contains approximately 37% of the remaining birds. We developed Resource... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Centrocercus urophasianus, Greater sage-grouse, United States, WY, Wyoming, All tags... biota, distribution, ecological modeling, environment, functional response, geographic information systems, habitat, logistic regression, persistence, radiotelemetry, range contraction, resource selection function, sage-grouse core regions, sage-grouse late brood-rearing, sage-grouse nesting, sage-grouse seasonal models, sage-grouse winter, Fewer tags Binary classification for relative probability of Greater Sage-grouse summer occurrence within statewide region of Wyoming, USA at the landscape scale (Filename: wysg_l_state_summer_bool.tif). Habitat selection studies can make important contributions to habitat prioritization efforts for species of conservation concern. We present a large-scale collaborative effort to develop habitat selection models for Greater Sage-grouse (Centrocercus urophasianus) across large landscapes (Wyoming, USA) and multiple seasons. Greater Sage-grouse are limited to western semi-arid landscapes in North America, range-wide population declines have been documented, and the species is currently listed a “warranted but precluded” from listing under the U.S. Endangered Species Act. Wyoming is predicted to remain a stronghold for Sage-grouse populations and contains approximately 37% of the remaining birds. We developed Resource... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Centrocercus urophasianus, Greater sage-grouse, United States, WY, Wyoming, All tags... biota, distribution, ecological modeling, environment, functional response, geographic information systems, habitat, logistic regression, persistence, radiotelemetry, range contraction, resource selection function, sage-grouse core regions, sage-grouse late brood-rearing, sage-grouse nesting, sage-grouse seasonal models, sage-grouse winter, Fewer tags Binned categories for relative probability of Greater Sage-grouse winter occurrence for each respective region (southwest, central, and northeast) of Wyoming, USA at the combined landscape-patch scale (Filename: wysg_lp_regional_winter_bin.tif). Habitat selection studies can make important contributions to habitat prioritization efforts for species of conservation concern. We present a large-scale collaborative effort to develop habitat selection models for Greater Sage-grouse (Centrocercus urophasianus) across large landscapes (Wyoming, USA) and multiple seasons. Greater Sage-grouse are limited to western semi-arid landscapes in North America, range-wide population declines have been documented, and the species is currently listed a “warranted but precluded” from listing under the U.S. Endangered Species Act. Wyoming is predicted to remain a stronghold for Sage-grouse populations and contains approximately 37% of the remaining birds. We developed Resource... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Centrocercus urophasianus, Greater sage-grouse, United States, WY, Wyoming, All tags... biota, distribution, ecological modeling, environment, functional response, geographic information systems, habitat, logistic regression, persistence, radiotelemetry, range contraction, resource selection function, sage-grouse core regions, sage-grouse late brood-rearing, sage-grouse nesting, sage-grouse seasonal models, sage-grouse winter, Fewer tags Bird locations by date and species In 30 surveys, we mapped 21,486 birds comprising 88 species “interact with” the intertidal habitat. Each full “survey” represents a unique month-year-tide combination (but not necessarily a unique day). Specifically, for each of 15 months between January 2012 and March 2013 we conducted separate, but temporally adjacent high-tide and low-tide bird surveys (30 in total) throughout the intertidal habitats. Back to back surveys within the same month are not meant to be independent measures of bird abundance and should be averaged to get an idea of bird abundance in a particular month. Birds were counted if they were in the intertidal habitat. We also counted some species, like raptors, if they were perched in adjacent... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, Carpinteria, Carpinteria Salt Marsh Reserve, Santa Barbara County, bird, All tags... distribution, estuary, habitat, mapping, salt marsh, trematodes, Fewer tags Current Versus Historical Trends in Habitat Use by Wintering Raptors in the Snake River Birds of Prey National Conservation Area FY2011Research is showing that populations of wintering raptors, including Northern Harriers, Rough-Legged Hawks, Prairie Falcons, American Kestrels. Red-Tailed Hawks and Golden Eagles, have stayed relatively constant in the last 20 years are being used by the Bureau of Land Management and Idaho Army National Guard in developing raptor conservation management practices. The American Wind and WildlifeInstitute will also use the results for their wind energy siting support tools. Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Data Acquisition and Development, Federal resource managers, LCC Network Science Catalog, Monitoring, Population & Habitat Evaluation/Projection, All tags... Project, Publication, State agencies, american kestrel, american kestrel, american kestrel, birds of prey nca, birds of prey nca, birds of prey nca, climate change, climate change, climate change, completed, distribution, distribution, distribution, golden eagle, golden eagle, golden eagle, idaho, idaho, idaho, northern great basin, northern great basin, northern great basin, northern harrier, prairie falcon, prairie falcon, prairie falcon, red-tailed hawk, red-tailed hawk, red-tailed hawk, rough-legged hawk, rough-legged hawk, rough-legged hawk, snake river, winter, winter, winter, Fewer tags Cumulative spring discharge and survey effort influence threatened Suwannee moccasinshell, Medionidus walkeri, occupancy and detection Freshwater mussels (Unionidae) are among the most imperiled groups of organisms in the world. Unionids are plagued with a lack of basic information regarding species distributions, life history characteristics, and ecological and biological requirements. We assessed the influence of hydrologic factors on the occurrence of the Suwannee Moccasinshell, Medionidus walkeri, a federally threatened freshwater mussel species endemic to the Suwannee River basin in Georgia and Florida. We also assessed the influence of survey effort on detection of M. walkeri during field surveys. All current (2013-2016) mussel survey records in the Suwannee River Basin were compiled, and cumulative discharge contributed by upstream springs... Categories: Data; Tags: Conservation, Distribution, Hydrology, Ichetucknee River, Imperiled species, All tags... Little River, Mill Creek, Modeling, Monitoring, Santa Fe River, Suwannee River, Tidal influence, USGS Science Data Catalog (SDC), Unionidae, Unmarked, Withlacoochee River, Fewer tags Mercury Contamination of Red-legged Kittiwakes in the Western Subarctic Pacific Ocean This dataset contains mercury concentrations and locations of wintering red-legged kittiwakes in the western subartic Pacific Ocean. These data support the following publication: Fleishman, AB, RA Orben, N Kokubun, A Will, R Paredes, JT Ackerman, A Takahashi, AS Kitaysky, and SA Shaffer. 2019. Wintering in the Western Subarctic Pacific increases mercury contamination of red-legged kittiwakes. Environmental Science and Technology, in press. Categories: Data; Tags: Pacific Ocean, USGS Science Data Catalog (SDC), Wildlife Biology, biogeography, biota, All tags... birds, contaminant exposure, distribution, hierarchical clustering, isotopic analysis, marine isoscape, mercury contamination, mesopelagic predator, migration (organisms), non-breading, seabird, seabird sentinels, stable isotopes, western subartic, Fewer tags Annual California Sea Otter Census: 2019 Extra Limit Observations Shapefile The GIS shapefile Extra limit counts of southern sea otters 2019 is a point layer representing the locations of sea otter sightings that fall outside the officially recognized range of the southern sea otter (Enhydra lutris nereis) in mainland California. These data were collected during the spring 2019 range-wide census. The USGS range-wide sea otter census has been undertaken each year since 1982, using consistent methodology involving both ground-based and aerial-based counts. The spring census provides the primary basis for gauging population trends by State and Federal management agencies. Sea otter distribution in California (the mainland range) is considered to comprise a band of potential habitat stretching... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, Central California Coastal, Southern California Coastal, aerial counts, biogeography, All tags... biota, distribution, environment, mammals, ocean, range, sea otter census, sea otters, sea otters, shore counts, Fewer tags Relative probability of Greater Sage-grouse summer occurrence within southwestern region of Wyoming, USA at the landscape scale (Filename: wysg_l_sw_summer_rsf.tif). Habitat selection studies can make important contributions to habitat prioritization efforts for species of conservation concern. We present a large-scale collaborative effort to develop habitat selection models for Greater Sage-grouse (Centrocercus urophasianus) across large landscapes (Wyoming, USA) and multiple seasons. Greater Sage-grouse are limited to western semi-arid landscapes in North America, range-wide population declines have been documented, and the species is currently listed a “warranted but precluded” from listing under the U.S. Endangered Species Act. Wyoming is predicted to remain a stronghold for Sage-grouse populations and contains approximately 37% of the remaining birds. We developed Resource... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Centrocercus urophasianus, Greater sage-grouse, United States, WY, Wyoming, All tags... biota, distribution, ecological modeling, environment, functional response, geographic information systems, habitat, logistic regression, persistence, radiotelemetry, range contraction, resource selection function, sage-grouse core regions, sage-grouse late brood-rearing, sage-grouse nesting, sage-grouse seasonal models, sage-grouse winter, Fewer tags Binary classification for relative probability of Greater Sage-grouse nest occurrence within northeastern Wyoming, USA at the combined landscape-patch scale (Filename: wysg_lp_ne_nest_bin.tif). Habitat selection studies can make important contributions to habitat prioritization efforts for species of conservation concern. We present a large-scale collaborative effort to develop habitat selection models for Greater Sage-grouse (Centrocercus urophasianus) across large landscapes (Wyoming, USA) and multiple seasons. Greater Sage-grouse are limited to western semi-arid landscapes in North America, range-wide population declines have been documented, and the species is currently listed a “warranted but precluded” from listing under the U.S. Endangered Species Act. Wyoming is predicted to remain a stronghold for Sage-grouse populations and contains approximately 37% of the remaining birds. We developed Resource... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Centrocercus urophasianus, Greater sage-grouse, United States, WY, Wyoming, All tags... biota, distribution, ecological modeling, environment, functional response, geographic information systems, habitat, logistic regression, persistence, radiotelemetry, range contraction, resource selection function, sage-grouse core regions, sage-grouse late brood-rearing, sage-grouse nesting, sage-grouse seasonal models, sage-grouse winter, Fewer tags Binary classification for relative probability of Greater Sage-grouse winter occurrence within northeastern region of Wyoming, USA at the combined landscape-patch scale(Filename: wysg_lp_ne_summer_bool.tif). Habitat selection studies can make important contributions to habitat prioritization efforts for species of conservation concern. We present a large-scale collaborative effort to develop habitat selection models for Greater Sage-grouse (Centrocercus urophasianus) across large landscapes (Wyoming, USA) and multiple seasons. Greater Sage-grouse are limited to western semi-arid landscapes in North America, range-wide population declines have been documented, and the species is currently listed a “warranted but precluded” from listing under the U.S. Endangered Species Act. Wyoming is predicted to remain a stronghold for Sage-grouse populations and contains approximately 37% of the remaining birds. We developed Resource... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Centrocercus urophasianus, Greater sage-grouse, United States, WY, Wyoming, All tags... biota, distribution, ecological modeling, environment, functional response, geographic information systems, habitat, logistic regression, persistence, radiotelemetry, range contraction, resource selection function, sage-grouse core regions, sage-grouse late brood-rearing, sage-grouse nesting, sage-grouse seasonal models, sage-grouse winter, Fewer tags Binary classification for relative probability of Greater Sage-grouse summer occurrence for each respective region (southwest, central, and northeast) of Wyoming, USA at the combined landscape-patch scale (Filename: wysg_lp_regional_summer_bool.tif). Habitat selection studies can make important contributions to habitat prioritization efforts for species of conservation concern. We present a large-scale collaborative effort to develop habitat selection models for Greater Sage-grouse (Centrocercus urophasianus) across large landscapes (Wyoming, USA) and multiple seasons. Greater Sage-grouse are limited to western semi-arid landscapes in North America, range-wide population declines have been documented, and the species is currently listed a “warranted but precluded” from listing under the U.S. Endangered Species Act. Wyoming is predicted to remain a stronghold for Sage-grouse populations and contains approximately 37% of the remaining birds. We developed Resource... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Centrocercus urophasianus, Greater sage-grouse, United States, WY, Wyoming, All tags... biota, distribution, ecological modeling, environment, functional response, geographic information systems, habitat, logistic regression, persistence, radiotelemetry, range contraction, resource selection function, sage-grouse core regions, sage-grouse late brood-rearing, sage-grouse nesting, sage-grouse seasonal models, sage-grouse winter, Fewer tags Binned categories for relative probability of Greater Sage-grouse nest occurrence within central region Wyoming, USA at the landscape scale (Filename: wysg_p_central_nest_bin.tif). Habitat selection studies can make important contributions to habitat prioritization efforts for species of conservation concern. We present a large-scale collaborative effort to develop habitat selection models for Greater Sage-grouse (Centrocercus urophasianus) across large landscapes (Wyoming, USA) and multiple seasons. Greater Sage-grouse are limited to western semi-arid landscapes in North America, range-wide population declines have been documented, and the species is currently listed a “warranted but precluded” from listing under the U.S. Endangered Species Act. Wyoming is predicted to remain a stronghold for Sage-grouse populations and contains approximately 37% of the remaining birds. We developed Resource... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Centrocercus urophasianus, Greater sage-grouse, United States, WY, Wyoming, All tags... biota, distribution, ecological modeling, environment, functional response, geographic information systems, habitat, logistic regression, persistence, radiotelemetry, range contraction, resource selection function, sage-grouse core regions, sage-grouse late brood-rearing, sage-grouse nesting, sage-grouse seasonal models, sage-grouse winter, Fewer tags 1 2 3 4 5 ... 9 »