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Filters Date Range Past year (1) Past month (1) Past week (1) Past day (1) Custom range... To   Search Extensions Shapefile (1) Types Citation (1) Downloadable (1) Map Service (1) OGC WFS Layer (1) OGC WMS Layer (1) Shapefile (1) Contacts U.S. Geological Survey - ScienceBase Western Ecological Research Center Forest and Rangeland Ecosystem Science Center Ecosystems Jeff A Tracey More... Categories Data (7) Tag Types Theme (41) Tags (with Scheme=USGS Thesaurus) amphibians (4) ecology (3) animal behavior (2) birds (2) habitat alteration (2) habitats (2) terrestrial ecosystems (2) More... View Results as: JSON ATOM CSV

Western Spadefoot Habitat Selection Based on Radio Telemetry in Orange County, California 2019 We conducted a radio telemetry study of adult western spadefoots (Spea hammondii) at 2 sites in southern California to characterize their survival, behavior, and movements from breeding through aestivation to inform conservation and management for the species. These data support the following publication: Halstead, B.J., Baumberger, K.L., Backlin, A.R., Kleeman, P.M., Wong, M.N., Gallegos, E.A., Rose, J.P., and Fisher, R.N., 2021. Conservation implications of spatiotemporal variation in the terrestrial ecology of an ephemeral pool-breeding amphibian. The Journal of Wildlife Management. Categories: Data; Tags: California, Orange County, Southern California, Spea hammondii, USGS Science Data Catalog (SDC), All tags... Wildlife Biology, activity, amphibians, anuran, biota, ecology, environment, habitat selection, home range, movement, survival, western spadefoot, Fewer tags Species Observations from Pitfall Trap Arrays, Species Pool Matrices, and Patch Locations in Southern California from 1995-2015 Observations (reduced to detected/not detected) of 45 vertebrate species (seven mammals, seven amphibians, and 31 reptiles) across Southern California pitfall sampling projects conducted between 1995 through 2015. Habitat patch locations of every pitfall sampling project presented in a shapefile. Habitat patches were measured based on the size when pitfall sampling began within each. Sampling projects within the same geographic area may have different sized patches based on date of project sampling and if patch erosion occurred. A matrix of whether each species was expected within each habitat patch's species pool based on range maps and published records is also included. These data support the following publication:... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Los Angeles County, Orange County, Riverside County, San Bernardino County, San Diego County, All tags... Southern California, USGS Science Data Catalog (SDC), Ventura County, Wildlife Biology, amphibian, amphibians, biodiversity, biogeography, biota, climate change, climate change, density compensation, ecology, mammal, mammals, multi-species occupancy model, reptile, reptiles, urbanization, Fewer tags Microsatellite genotype scores for a contemporary, range-wide sample of Santa Ana sucker in southern California These data consist of microsatellite genotype scores for all samples of Santa Ana sucker (Catostomus santaanae) used in the study. Scores represent the allele calls for each microsatellite locus (i.e. DNA fragment length containing the microsatellite repeats), with each locus containing two scores representing the two allele copies detected. Included are five tables: Full dataset (includes genotypes from all samples), Santa Clara River samples only (includes genotypes only from samples collected in the Santa Clara River), Convert File format key (explains the data file format), Population identifiers (translates the numerical population identifiers to actual collecting sites), CASA sampling points (one coordinate... Tags: Los Angeles, San Gabriel, Santa Ana, Santa Clara River watersheds, USGS Science Data Catalog (SDC), All tags... admixture, dendritic network, endangered species, fish, genetics, hybridization, metapopulation, southern California, Fewer tags Mercury concentrations in amphibian tissues across the United States, 2016-2021 Comma-separated values (.csv) file containing data related to amphibian sampling across the United States between 2016 and 2021. Data files contain mercury concentrations in amphibian and dragonfly tissues, mercury concentrations in sediment, as well as amphibian morphometrics, and habitat and climate characteristics where the samples were collected. Categories: Data; Tags: Aquatic Biology, California, Colorado, Connecticut, Ecology, All tags... Environmental Health, Louisiana, Maine, Manitoba, Massachusetts, Montana, Oregon, Pennsylvania, USGS Science Data Catalog (SDC), Vermont, Virginia, Water Quality, Wildlife Biology, Wisconsin, Wyoming, biota, environment, inlandWaters, mercury contamination, Fewer tags Raster data files for “Prioritizing conserved areas threatened by wildfire for monitoring and management." The data set consists of 12 input data rasters that cover San Diego County, California. These input rasters represent criteria used in a Pareto ranking algorithm in the manuscript. These include three rasters related to fire threats, three rasters related to habitat fragmentation threats, four rasters related to species biodiversity, and two rasters related to genetic biodiversity. (see the PLOS ONE paper for details). These data support the following publication: Tracey JA, Rochester CJ, Hathaway SA, Preston KL, Syphard AD, Vandergast AG, et al. (2018) Prioritizing conserved areas threatened by wildfire and fragmentation for monitoring and management. PLoS ONE 13(9): e0200203. https://doi.org/10.1371/journal.pone.0200203 Tags: Botany, Genetics, MCDA, Mediterranean-type Ecosystems, Multi-criteria decision analysis, All tags... Pareto ranking, San Diego, USGS Science Data Catalog (SDC), Wildlife Biology, biota, ecosystems, environment, fires, genetics, habitat alteration, species diversity, wildfires, Fewer tags Western spadefoot survey data in northern and central California (2019) Species distributions are governed by processes occurring at multiple spatial scales. For species with complex life cycles, the needs of all life stages must be met within the dispersal limitations of the species. Multi-scale processes can be particularly important for these species, where small-scale patterns in specific habitat components can affect the distribution of one life stage, whereas large-scale patterns in land cover might better explain the distribution of other life stages. Using a conditional multi-scale model, we evaluated which aspects of the landscape and local environment are most strongly related to occupancy patterns of western spadefoots (Spea hammondii). These data describe the survey, pool,... Categories: Data; Tags: California, USGS Science Data Catalog (SDC), amphibians, biota, terrestrial ecosystems, All tags... wetland ecosystems, Fewer tags Detection/non-detection data on territorial pairs of golden eagles in coastal southern California, 2016-2017 This dataset contains detection-nondetection data for territorial pairs of Golden Eagles at survey sites randomly selected from a grid of equal-sized (13.9 km2) hexagonal sample cells overlaid across the region of interest in Coastal Southern California during 2016 and 2017. We partitioned surveys within seasons based on approximate transition dates for stages in the breeding cycle of golden eagles in the study region: courtship (15 Dec-28 Feb), incubation (1 Mar-30 Apr), nestling (1 May-15 Jun), and the fledging-dependency period (16 June-Jul 30), totaling 4 possible sampling periods per year. This dataset also describes the proportion of land-cover types from four general categories (urban, open grassland, scrub... Categories: Data; Tags: Aquila chrysaetos, California, California birds, Ecology, Land Use Change, All tags... N-mixture model, Southern California, USGS Science Data Catalog (SDC), Wildlife Biology, animal behavior, biota, birds, detection probability, environment, ethology, farming, golden eagle, habitats, occupancy, ornithology, population and community ecology, population dynamics, wildlife biology, Fewer tags New record of California red-legged frog (Rana draytonii) in Whitewater Canyon, Riverside County, CA, USA In February 2017, a population of California red-legged frog Rana draytonii was discovered in the southern foothills of the San Bernardino Mountains of Riverside County, California, near the edge of the species’ historic distribution. A few days after the first sightings of R. draytonii at the Whitewater Preserve, we conducted a visual daytime search for frogs, tadpoles and egg masses followed by a nighttime eye shine search for adult frogs. The captured frog weighed, measured (snout-to-urostyle [SU]), sampled for tissue and georeferenced using a GPS unit. Survey work was authorized by a U.S. Fish and Wildlife Service Recovery Permit and a California Department of Fish and Wildlife Scientific Collecting Permit.... Categories: Data; Types: Citation; Tags: Amphibian conservation, Frog, Rana draytonii, USGS Science Data Catalog (SDC), amphibians, All tags... biota, southern California, Fewer tags Predictor, null model, response variable, and habitat suitability prediction rasters for a golden eagle hierarchical Bayesian synoptic model used for habitat selection in San Diego County, California. Derived from golden eagle data collected from November 2014-February 2017 This data release includes three types of data used in habitat modeling, and predictions from the habitat models. (1) Predictor rasters for proportion urban development within 1-km radius, proportion exurban within 1-km radius, vector ruggedness measure (VRM) within 500-m radius, topographic position index (TPI) within 500-m radius. (2) Twenty-nine null models for space use for 29 different golden eagles. (3) Twenty-nine response variable rasters of eagle locations per cell for 29 golden eagles. (4) A raster for predicted population-level probability of habitat selection and contours for predicted population-level probability of habitat selection and contours. These data support the following publication: Tracey,... Tags: Aquila chrysaetos, California, Ecology, Golden eagle, Information Sciences, All tags... San Diego, USGS Science Data Catalog (SDC), Wildlife Biology, animal tracking, biota, biotelemetry, boundaries, ecological processes, ecology, environment, geography, habitat alteration, habitat selection, habitats, hierarchical Bayesian modeling, land use and land cover, land use change, synoptic model, telemetry, urban development, Fewer tags Long-distance movements of non-migratory golden eagles in western North America, 2007-2017 We studied >500 golden eagles tracked by telemetry over a 10-year period in western North America, of which 160 engaged in non-routine, long-distance (>300 km) movements. We identified spatial and temporal correlates of those movements at both small and large scales, and we quantified movement timing and direction. We further tested which age and sex classes of eagles were more likely to engage in these movements. This dataset includes data on daily distances and their correlates, long-distance event distances and durations and their correlates, event timing and directions, and eagle ages and sexes. Categories: Data; Tags: Canada, Ecology, Mexico, Remote Sensing, USGS Science Data Catalog (SDC), All tags... Western United States, Wildlife Biology, animal behavior, birds, terrestrial ecosystems, Fewer tags