Filters: partyWithName: Ecosystems (X) > partyWithName: Western Ecological Research Center (X)

Filters Contacts (Less) Western Ecological Research Center Ecosystems U.S. Geological Survey - ScienceBase U.S. Geological Survey, Western Ecological Research Center Daniel F Shryock Todd C Esque Michael P Chenaille Peter S Coates Lesley A DeFalco Brian J Halstead Karen M Thorne Kevin J Buffington U.S. Geological Survey Josh T Ackerman Josh Adams Jonathan P Rose Mark Ricca Barbara E Kus Brianne E Brussee Adrian J Das Michael L Casazza Michael C Kenner Amy Vandergast U.S. Geological Survey - ScienceBase Shawn T O'Neil Cory T Overton Jonathan J Felis Patrick M Kleeman Sarah H Peterson Robert C Klinger Rich D Inman M. Tim Tinker Julie L Yee Brian B Hatfield Jon E Keeley Kevin D Lafferty Teresa J Brennan-Kane Suellen Lynn John Y Takekawa Laurie A Hall Phillip J van Mantgem Isa Woo Joseph A Tomoleoni Erika N Sanchez-Chopitea Emily (Emma) C. Kelsey David J Delehanty Dustin A Wood Matthew L Brooks Nathan L Stephenson Elliott L Matchett More... View Results as: JSON ATOM CSV

Vegetation type conversion in chaparral in San Diego County, California, USA between 1953 and 2016 This dataset contains data pertaining to ground surface cover in a 30 meter radius around a random selection of points within San Diego County, California. These data were obtained from aerial imagery for the years 1953 and 2016 and were used to assess changes in cover type over time. These data support the following publication: Syphard, A.D., Brennan, T.J. and Keeley, J.E., 2019. Extent and drivers of vegetation type conversion in Southern California chaparral. Ecosphere, 10(7), p.e02796. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Chaparral, San Diego County, San Diego County, Southern California, USGS Science Data Catalog (SDC), All tags... biota, environment, imageryBaseMapsEarthCover, plants (organisms), type conversion, Fewer tags Species Distribution Model (SDM) for Ericameria cooperi in the Mojave Desert Preserving native species diversity is fundamental to ecosystem conservation. Selecting appropriate native species for use in restoration is a critical component of project design and may emphasize species attributes such as life history, functional type, pollinator services, and nutritional value for wildlife. Determining which species are likely to establish and persist in a particular environment is a key consideration. Species distribution models (SDMs) characterize relationships between species occurrences and the physical environment (e.g., climate, soil, topographic relief) and provide a mechanism for assessing which species may successfully propagate at a restoration site. In conjunction with information... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Arizona, California, Mojave, Nevada, Utah, All tags... biogeography, biota, habitats, maps and atlases, native plant materials development, native species, species distribution model, Fewer tags Species Distribution Model (SDM) for Larrea tridentata in the Mojave Desert Preserving native species diversity is fundamental to ecosystem conservation. Selecting appropriate native species for use in restoration is a critical component of project design and may emphasize species attributes such as life history, functional type, pollinator services, and nutritional value for wildlife. Determining which species are likely to establish and persist in a particular environment is a key consideration. Species distribution models (SDMs) characterize relationships between species occurrences and the physical environment (e.g., climate, soil, topographic relief) and provide a mechanism for assessing which species may successfully propagate at a restoration site. In conjunction with information... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Arizona, California, Mojave, Nevada, Utah, All tags... biogeography, biota, habitats, maps and atlases, native plant materials development, native species, species distribution model, Fewer tags Species Distribution Model (SDM) for Lupinus odoratus in the Mojave Desert Preserving native species diversity is fundamental to ecosystem conservation. Selecting appropriate native species for use in restoration is a critical component of project design and may emphasize species attributes such as life history, functional type, pollinator services, and nutritional value for wildlife. Determining which species are likely to establish and persist in a particular environment is a key consideration. Species distribution models (SDMs) characterize relationships between species occurrences and the physical environment (e.g., climate, soil, topographic relief) and provide a mechanism for assessing which species may successfully propagate at a restoration site. In conjunction with information... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Arizona, California, Mojave, Nevada, Utah, All tags... biogeography, biota, habitats, maps and atlases, native plant materials development, native species, species distribution model, Fewer tags Species Distribution Model (SDM) for Yucca brevifolia in the Mojave Desert Preserving native species diversity is fundamental to ecosystem conservation. Selecting appropriate native species for use in restoration is a critical component of project design and may emphasize species attributes such as life history, functional type, pollinator services, and nutritional value for wildlife. Determining which species are likely to establish and persist in a particular environment is a key consideration. Species distribution models (SDMs) characterize relationships between species occurrences and the physical environment (e.g., climate, soil, topographic relief) and provide a mechanism for assessing which species may successfully propagate at a restoration site. In conjunction with information... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Arizona, California, Mojave, Nevada, Utah, All tags... biogeography, biota, habitats, maps and atlases, native plant materials development, native species, species distribution model, Fewer tags Species Distribution Models for Native Species in the Mojave Desert Preserving native species diversity is fundamental to ecosystem conservation. Selecting appropriate native species for use in restoration is a critical component of project design and may emphasize species attributes such as life history, functional type, pollinator services, and nutritional value for wildlife. Determining which species are likely to establish and persist in a particular environment is a key consideration. Species distribution models (SDMs) characterize relationships between species occurrences and the physical environment (e.g., climate, soil, topographic relief) and provide a mechanism for assessing which species may successfully propagate at a restoration site. In conjunction with information... Tags: Arizona, Botany, California, Mojave, Nevada, All tags... USGS Science Data Catalog (SDC), Utah, biogeography, biota, habitats, maps and atlases, native plant materials development, native species, species distribution model, Fewer tags Species Distribution Model (SDM) for Amsinckia tessellata in the Mojave Desert Preserving native species diversity is fundamental to ecosystem conservation. Selecting appropriate native species for use in restoration is a critical component of project design and may emphasize species attributes such as life history, functional type, pollinator services, and nutritional value for wildlife. Determining which species are likely to establish and persist in a particular environment is a key consideration. Species distribution models (SDMs) characterize relationships between species occurrences and the physical environment (e.g., climate, soil, topographic relief) and provide a mechanism for assessing which species may successfully propagate at a restoration site. In conjunction with information... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Arizona, California, Mojave, Nevada, Utah, All tags... biogeography, biota, habitats, maps and atlases, native plant materials development, native species, species distribution model, Fewer tags Seed Source, Not Drought, Determines Patterns of Seed Production in Sierra Nevada Conifers (ver. 2.0, January 2023) This release consists of data collected from 26 plots in two national parks over a 19-year period. The data consists of plot-level seed counts for three genera, number of seed traps, live tree basal area, plot area, and climate metrics from the gridmet gridded data set, the daymet gridded data set, the PRISM gridded data set, and two nearby COOP stations. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: California, Holocene, Sequoia-Kings National Park, Terrestrial surface, USGS Science Data Catalog (SDC), All tags... Yosemite National Park, biota, coniferous trees, current, drought and seed production, forest ecosystems, long-term ecological monitoring, spring (season), summer, time series datasets, Fewer tags Selection and Survival of Greater Sage-Grouse Broods in Mesic Areas of Long Valley, California (2003 - 2018) We evaluated brood-rearing habitat selection and brood survival of greater sage-grouse (Centrocercus urophasianus; hereafter, sage-grouse) in Long Valley, California, an area where the water rights are primarily owned by the city of Los Angeles and water is used locally to irrigate for livestock. This area thus represents a unique balance between the needs of wildlife and people that could increasingly define future water management. In this study, sage-grouse broods moved closer to the edge of mesic areas and used more interior areas during the late brood-rearing period, selecting for greener areas after 1 July. Mesic areas were particularly important during dry years, with broods using areas farther interior than... Categories: Data; Tags: Bistate, California, Ecology, Land Use Change, Long Valley, All tags... USGS Science Data Catalog (SDC), United States of America, Water Resources, Wildlife Biology, biota, ecology, human impacts, land use change, native species, water resource management, water supply and demand, Fewer tags Selenium concentrations in Yuma Ridgway's Rails occupying managed and unmanaged emergent marshes at the Salton Sea Yuma Ridgway’s rail (Rallus obsoletus yumanensis, hereafter, "rail") are an endangered species for which patches of emergent marsh within the Salton Sea watershed comprise a substantial portion of habitat for the species’ disjointed range in the southwestern United States. These areas of emergent marsh include: 1) marshes managed by federal (particularly the U.S. Fish and Wildlife Service’s Sonny Bono Salton Sea National Wildlife Refuge (SBSSNWR), state (California Department of Fish and Wildlife), and local (Imperial Irrigation District) resource agencies that are sustained by direct deliveries of Colorado River water; and 2) unmanaged marshes sustained by agricultural drainage water. Management of rail habitat... Categories: Data; Tags: Aquatic Biology, California, Colorado River, Ecology, Environmental Health, All tags... Salton Sea, Salton Sea, USGS Science Data Catalog (SDC), Water Quality, Wildlife Biology, Yuma Ridgway's Rail, biota, ecotoxicology, ecotoxicology, environment, field inventory and monitoring, invertebrate, planningCadastre, selenium, toxic trace element contamination, water management, Fewer tags USGS Occupancy Surveys for Dixie Valley Toads, Anaxyrus williamsi, in Churchill County, Nevada from April 2018 to May 2021 Desert spring wetlands host many endemic species that require aquatic habitat and are isolated by the surrounding xeric terrestrial habitat. The Dixie Valley Toad (Anaxyrus williamsi) is a recently described anuran species endemic to desert spring wetlands in the Dixie Valley, Churchill County, Nevada, USA. Given this species was only recently recognized as distinct from Anaxyrus boreas, little is known about its ecology and habitat requirements. These data represent the results of surveys for Dixie Valley Toads conducted from April 2018 to May 2021 in Churchill County, Nevada, USA and associated covariates from surveys and study sites. The potential wetland habitat for the Dixie Valley Toad was divided into 20... Tags: Dixie Valley, USGS Science Data Catalog (SDC), Wildlife Biology, amphibians, bayesian, All tags... biota, ecology, modeling, occupancy, population dynamics, Fewer tags Distribution and Breeding Status of Least Bell’s Vireo Along the San Diego and Tijuana Rivers in San Diego County, California (2020) The spatial data results of USGS surveys for Least Bell's Vireo (Vireo bellii pusillus, LBVI) along the Tijuana River and San Diego River in 2020 to determine abundance and distribution of vireos to facilitate population trend analyses and collect information on dispersal and site fidelity of banded vireos as part of long-term demographic studies at multiple sites. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: San Diego County, San Diego River, Tijuana River, USGS Science Data Catalog (SDC), Wildlife Biology, All tags... biota, endangered species, southern California, wetland ecosystems, Fewer tags San Francisco Gartersnake Fecundity Data from San Mateo County, California Collected from 2019-2022 Adult female San Francisco gartersnakes (Thamnophis sirtalis tetrataenia) were captured and examined using an ultrasound device to determine if they were gravid and count the number of embryos in those that were. Morphological data including length and mass were collected for each snake, along with the date of capture and a study site identifier. These data support the following publication: Rose, J.P., Kim, R., Schoening, E.J., Lien, P.C., and Halstead, B.J., 2023. Comparing reintroduction strategies for the endangered San Francisco gartersnake (Thamnophis sirtalis tetrataenia) using demographic models. PLoS ONE 18(10): e0292379. https://doi.org/10.1371/journal.pone.0292379 Categories: Data; Tags: Ecology, San Mateo County, USGS Science Data Catalog (SDC), Wildlife Biology, biota, All tags... herpetology, natural resource management, Fewer tags Amphibian Chytrid Swab Data from Mendocino County, California (2016-2020) This dataset includes results from external skin swabbing of Rana boylii and Dicamptodon tenebrosus to test for the fungus Batrachochytrium dendrobatidis from Fox Creek in Mendocino County, California, in 2016-2020. Morphological measurements of swabbed animals were recorded, and Rana boylii had a unique identifier (pit tag) inserted beneath their skin for identification in future capture events. These data supports the following publication: Belasen, A.M., Peek, R.A., Adams, A.J., Russell, I.D., De León, M.E., Adams, M.J., Bettaso, J., Breedveld, K.G.H., Catenazzi, A., Dillingham, C.P. and Grear, D.A., 2024. Chytrid infections exhibit historical spread and contemporary seasonality in a declining stream-breeding... Categories: Data; Tags: Ecology, Fox Creek, Mendocino County, USGS Science Data Catalog (SDC), Wildlife Biology, All tags... Wildlife Disease, amphibians, biota, wildlife biology, wildlife disease, Fewer tags Southwestern Willow Flycatcher (Empidonax traillii extimus) Surveys and Nest Monitoring in San Diego County, California (ver. 3.0, January 2024) Data presented are results of surveys and monitoring for Southwestern Willow Flycatcher (Empidonax traillii extimus) in San Diego County, California. These data were collected to assess Southwestern Willow Flycatcher abundance and distribution in San Diego County. Surveys were conducted in various years at 33 locations along 10 drainages in San Diego County, including portions of Agua Hedionda Creek, Cottonwood Creek, Escondido Creek, Los Penasquitos Creek, Otay River, San Diego River, San Dieguito River, San Luis Rey River, Sweetwater River, and Tijuana River. From 2016-19, Southwestern Willow Flycatcher territories were monitored at three locations along the upper San Luis Rey River (Cleveland National Forest,... Tags: San Diego, San Luis Rey River, USGS Science Data Catalog (SDC), Wildlife Biology, biota, All tags... birds, endangered species, habitats, population and community ecology, riparian habitats, survey, survival, Fewer tags Subalpine meadow plant communities in Yosemite and Sequoia and Kings Canyon National Parks, 2011-2012 This publication presents data collected within meadows from samples used to assess meadow plant community responses to recreational pack stock as part of a USGS Natural Resources Preservation Project. High elevation meadows are a vital ecological component of mountain systems throughout western North America. They provide critical habitat for wildlife, supply key ecosystem services, and are favored destinations for people visiting the mountains. The biophysical characteristics of meadows are highly variable, especially related to hydrologic regimes and associated plant community types. In the semi-arid landscape of the Sierra, water availability operates at multiple scales strongly influencing meadow plant community... Categories: Data; Types: Citation; Tags: Meadows, Pack Stock, Plant Communities, Sequoia and Kings Canyon National Parks, Sierra Nevada, All tags... USGS Science Data Catalog (SDC), Yosemite National Park, Fewer tags Invasive Plant Cover in the Mojave Desert, 2009 - 2013 (ver. 2.0, April 2021) We assessed the impacts of co-occurring invasive plant species on fire regimes and postfire native communities in the Mojave Desert, western USA by analyzing the distribution and co-occurrence patterns of three invasive annual grasses known to alter fuel conditions and community structure: Red Brome (Bromus rubens), Cheatgrass (Bromus tectorum), and Mediterranean grass (Schismus spp.: Schismus arabicus and Schismus barbatus), and an invasive forb, red stemmed filaree (Erodium cicutarium) which can dominate postfire sites. We developed species distribution models (SDMs) for each of the four taxa and analyzed field plot data to assess the relationship between invasives and fire frequency, years postfire, and the impacts... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Mojave desert, USGS Science Data Catalog (SDC), biota, co-occurance invasives, desert ecosystems, All tags... ecosystems, field methods, fire disturbance, fire frequency, fires, geographic information systems, habitat alteration, invasive species, plants (organisms), remote sensing, vegetation, Fewer tags Database of Marine Mammal and Seabird Research Activity in the Pacific (US) This database is a compilation of marine mammal and seabird information collected along the Pacific coast of the United States and U.S. territories in the Pacific from surveys that were solicited among regional research communities and persons. Information from standardized surveys was gathered from 2015 to 2018 and includes programs and researchers who collected information regarding seabirds since 1960. These data support the following publication: Adams, J., Lafferty, K.D., Kelsey, E.C., and Johnston, C.A. 2019. Synopsis of Research Programs that can Provide Baseline and Monitoring Information for Offshore Energy Activities in the Pacific Region: Seabird and Marine Mammal Surveys in the Pacific Region. U.S.... Categories: Data; Tags: Alaska, California, Ecology, Hawaii, Oregon, All tags... Pacific Islands, Research, USGS Science Data Catalog (SDC), Washington, Wildlife Biology, biodiversity, biological informatics, biota, birds, costal zones, field methods, geographical information systems (GIS), inlandWaters, laboratory methods, location, mammals, marine ecosystem, marine mammals, oceans, seabirds, Fewer tags Annual California Sea Otter Census: 2019 Census Summary Shapefile The GIS shapefile Census_sum_2019 provides a standardized tool for examining spatial patterns in abundance and demographic trends of the southern sea otter (Enhydra lutris nereis), based on data collected during the spring 2019 range-wide census. The USGS spring 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. This shapefile includes a series of summary statistics derived from the raw census data, including sea otter density (otters per square kilometer of habitat), linear density (otters per kilometer... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, Central California Coastal, Coast, Southern California Coastal, aerial counts, All tags... biogeography, biota, distribution, environment, mammals, ocean, range, sea otter census, sea otters, sea otters, shore counts, Fewer tags Annual California Sea Otter Census: 2018 Census Summary Shapefile The GIS shapefile "Census summary of southern sea otter 2018" provides a standardized tool for examining spatial patterns in abundance and demographic trends of the southern sea otter (Enhydra lutris nereis), based on data collected during the spring 2018 range-wide census. The USGS spring 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. This Shape file includes a series of summary statistics derived from the raw census data, including sea otter density (otters per square km of habitat), linear density... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, Central California Coastal, Coast, Southern California Coastal, aerial counts, All tags... biota, distribution, environment, ocean, range, sea otter census, sea otters, sea otters, shore counts, Fewer tags « 1 ... 3 4 5 6 7 ... 20 »