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Filters Contacts (Less) Ecosystems U.S. Geological Survey - ScienceBase U.S. Geological Survey Fort Collins Science Center Northern Rocky Mountain Science Center U.S. Geological Survey Western Ecological Research Center Jay R Alder FORT Metadata Specialist Bob Gresswell Stephanie R James Brian E Reichert Jonathan J Giersch Daniel B Fagre Karen M Milone Robert K Al-Chokhachy Patrick R Hutchins FORT Data Management Robert C Klinger Elizabeth K. Orning Western Fisheries Research Center Neal J Pastick Steven W Hostetler Stephanie R James Climate Adaptation Science Centers Julie A Heinrichs Burke J Minsley GS GGGSC DM Team Sara J Oyler-McCance U.S. Geological Survey, Western Ecological Research Center Isa Woo Peter S Coates Adam J Sepulveda Bob Gresswell Bethany R Straw Nicholas A. Heredia Northern Rocky Mountain Science Center U.S. Geological Survey, Fort Collins Science Center Mark P Waldrop Jack W McFarland Northern Prairie Wildlife Research Center Catherine S Jarnevich Michael P Chenaille Kristen L Manies Ian S Pearse Geology, Geophysics, and Geochemistry Science Center James H Cox III Joanne E Salzer Climate Research & Development Program Michael P Chenaille More... View Results as: JSON ATOM CSV

Spatial mark-recapture and chew card rat data on Guam and Rota, 2018-2019 We provide four datasets: Mark recapture and trapping effort, Grid layout, Chew cards, and Trail camera validation. Mark recapture and trapping effort has one row for every live-trap night, including the unique grid identification code, date of trap check, cumulative rain amount from the 24-hr period before the trap check, unique trap identification, trap status, unique individual rat identification (ID) and associated morphometrics, and rat fate. Grid layout includes the unique grid identification code, unique trap identification, and GPS coordinates of the traps. Chew cards has one row for every chew-card night, including the unique grid identification code, date of chew-card check, unique chew-card identification,... Categories: Data; Tags: Guam, Rota, USGS Science Data Catalog (SDC), biota, relative abundance analysis, All tags... wildlife population management, Fewer tags PIT Tags Encountered by Klamath Falls Field Station Equipment in the Upper Klamath Basin 1993-2023 (ver. 2.0, August 2023) Note: this data release has been superseded by version 3.0, available here: https://doi.org/10.5066/P1385SV2 Data were collected as part of a long-term capture-recapture program to assess the status and dynamics of populations of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon and Clear Lake Reservoir, California. Lost River suckers (LRS; Deltistes luxatus) and shortnose suckers (SNS; Chasmistes brevirostris) have been captured and tagged with passive integrated transponder (PIT) tags during their spawning migrations in each year since 1995.PIT tagged species were encountered in netting efforts, remote transceivers, and active scanning on bird colonies across the Upper Klamath River... Categories: Data, Data Release - Revised; Tags: Aquatic Biology, Clear Lake National Wildlife Refuge, USGS Science Data Catalog (SDC), Upper Klamath Lake, animal tracking, All tags... ecology, endangered species, inlandWaters, salmonids, suckers, Fewer tags Dust and sediment data from Great Salt Lake and northern Utah, 2022 These are physical and geochemical (elemental, strontium isotope) data from dust and sediments collected from and around Great Salt Lake, Utah. Data were collected by the U.S. Geological Survey Utah Water Science Center (West Valley City, Utah) to better understand the degree to which populations in northern Utah are affected by Great Salt Lake dust, dust from other sources, and metals pollution. The samples were processed at the Utah Water Science Center and geochemical analysis was performed at the University of Utah's ICP-MS Metals and Strontium Isotope Facility (Salt Lake City, Utah). These data can be used to evaluate the spatial variability of dust and metals deposition to urban areas and natural ecosystems... Categories: Data; Tags: Great Salt Lake, USGS Science Data Catalog (SDC), Utah, atmospheric deposition (chemical & particulate), chemical analysis, All tags... contamination and pollution, dust storms, Fewer tags Predictive maps of 2D and 3D surface soil properties and associated uncertainty for the Upper Colorado River Basin, USA The raster datasets in this release are maps of soil surface properties that were used in analyzing different approaches for digital soil mapping. They include maps of soil pH, electrical conductivity, soil organic matter, and soil summed fine and very fine sand contents that were created using both 2D and 3D modeling strategies. For each property a map was created using both 2D and 3D approaches to compare the mapped results. Tags: 2D mapping, 2D modeling, 3D mapping, 3D modeling, Arizona, All tags... Colorado, Ecology, Geography, Information Sciences, Nevada, New Mexico, Soil Sciences, Southwest United States, USGS Science Data Catalog (SDC), Upper Colorado River Basin, Utah, digital soil mapping, geoscientificInformation, geospatial datasets, mapping, predictive soil mapping, soil electrical conductivity, soil organic matter, soil pH, soil property maps, soil resources, soil sciences, Fewer tags Runoff We apply a monthly water-balance model (MWBM) to simulate components of the water balance for the period 1950-2099 under RCP4.5 and RCP8.5 for the Contiguous United States. We use the statistically downscaled MACAv2-METDATA temperature and precipitation data from 20 General Circulation Models (GCMs) from the Climate Model Intercomparison Program Phase 5 (CMIP5) as input to the water balance model. This dataset supports the USGS National Climate Change Viewer. The statistically downscaled dataset is: MACAv2-METDATA: Multivariate Adaptive Constructed Analogs (Abatzoglou & Brown, 2012, bias corrected by METDATA, Abatzoglou, 2013) Users interested in the downscaled temperature and precipitation files are referred to... Tags: MACAv2-METDATA, United States, climatologyMeteorologyAtmosphere, effects of climate change, environment, All tags... evaporation, hydrologic processes, runoff, snow and ice cover, soil moisture, Fewer tags Mojave Desert Ecoregion This is a shapefile of the Mojave Desert, which was used as our study area boundary (MojaveEcoregion_TNS_UTM83.shp). Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Mojave Desert, biota, burn severity, co-occurence invasives, desert ecosystems, All tags... ecosystems, environmental gradients, field methods, fire disturbance, fire frequency, fires, geographic gradients, geographic information systems, grass-fire cycle, ignition, imageryBaseMapsEarthCover, invasive plant species, invasive species, machine learning, maximum entropy, plants (organisms), random forests, remote sensing, spatial dynamics, vegetation, Fewer tags Eastern oyster Dynamic Energy Budget model outputs under current (2014-2020) and projected (2041-2050) temperature and salinity conditions in Texas and Louisiana estuaries and along northern Gulf of Mexico coast Compilation of all outputs from the modeling study presented in Lavaud et al. (2023; IP-156006). In this study a Dynamic Energy Budget (DEB) model for the eastern oyster, Crassostrea virginica, was run under different scenarios of current (2014–2020) and future (2041–2050) temperature and salinity conditions across six key Texas and Louisiana estuaries to derive an aquaculture index, based on survival and time to market size, and a restoration index, based on survival and reproductive output. Categories: Data; Tags: Aquaculture, Bioenergetic modeling, Dynamic Energy Budget, Eastern Oyster, Oyster reef, All tags... Shellfish, USGS Science Data Catalog (SDC), Fewer tags Data describing species consumed by mountain lions during predation events in eastern Nevada, USA, 2018 to 2022 This dataset consists of 1,353 ground observer investigations of mountain lion predation events ("kills") in eastern Nevada, USA, from 2018 to 2022. Over the period of the data collection, we had 29 mountain lions equipped with telemetry collars and we investigated clusters of locations when GPS collar locations were in the same area for three nights -- we used this criteria to identify potential predation events by mountain lions, and then hiked to the GPS cluster location on foot to search for a kill site and to identify the species consumed. Collared mountain lions were both males and females, and species consumed included mule deer, feral horses, bighorn sheep, coyotes, other mountain lions, badgers, beaver,... Categories: Data; Tags: Caliente, Clover Mountain, Delamar Mountain, Nevada, USGS Science Data Catalog (SDC), All tags... biota, carnivores, community ecology, cougar, feral horse, herbivores, mountain lion, predation, vertebrates, wild horse, Fewer tags Brown Treesnake Mortality Habitat Management Unit Guam 2019 The dataset contains 16 columns of data collected on invasive Brown Treesnakes (Boiga irregularis) at a study site known as the Habitat Management Unit (HMU) in northern Guam. Snakes were fitted with radio-transmitters and teams of 2-4 biologist listened for signals from transmitters every seven days to determine if snakes were alive or dead. Survival data was then modeled in Program MARK to assess the effect of aerially applied toxic baits on snake mortality, including the effect of snake size covariates. In addition, this dataset contains snake capture information from reference sites on Guam that was used to demonstrate that our sample was representative of the size distribution in limestone forest habitat on... Categories: Data; Tags: Boiga irregularis, Brown Treesnakes, Guam, Known Fate Model, USGS Science Data Catalog (SDC), All tags... boundaries, Fewer tags APEX Electrical Resistivity Tomography (ERT) Data and Models from 2018 Geophysical measurements and related field data were collected by the U.S. Geological Survey (USGS) at the Alaska Peatland Experiment (APEX) site in Interior Alaska from 2018 to 2020 to characterize subsurface thermal and hydrologic conditions along a permafrost thaw gradient. The APEX site is managed by the Bonanza Creek LTER (Long Term Ecological Research). Nine instrument monitoring sites (APEX1-APEX9) were established in April 2018. To quantify permafrost and thaw zone characteristics along the instrumented gradient, electrical resistivity tomography (ERT) data were collected in August 2018 along four 82 meter (m)-long transects between select sites: APEX1-3, APEX5-3, APEX5-7, and APEX6-8. Data were collected... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Active layer thickness, Alaska, Bonanza Creek, Disturbance, Electrical resistivity tomography, All tags... Fairbanks North Star, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Hydrologic processes, Land Change Science Program, Permafrost, U.S. Geological Survey, USGS, electrical resistivity imaging, environment, field monitoring stations, geoscientificInformation, hydrologic processes, permafrost, Fewer tags Infection prevalence and viral load in pacific herring exposed to erythrocytic necrosis virus (ENV) at 3 temperatures Viral erythrocytic necrosis (VEN) is a disease of marine and anadromous fishes, which is poorly understood, largely because its causative iridovirus, erythrocytic necrosis virus (ENV), is intractable to cell culture. Natural VEN epizootics and observations studies in wild populations suggest that temperature may be an important disease cofactor. Here, a controlled laboratory exposure study provides evidence for a direct relationship between temperature and the progression of viral erythrocytic necrosis (VEN) in Pacific herring. Waterborne exposure of Pacific herring to kidney homogenates containing ENV resulted in the establishment of infections, characterized by high infection prevalence (89%; 40/45) and mean viral... Categories: Data; Tags: DNA virus, Pacific Northwest, USGS Science Data Catalog (SDC), biota, climate change, All tags... disease progression, herring, immune response, pathogen, temperature, transcriptome, viral load, Fewer tags Greater sage-grouse genetic data and R code for evaluating conservation translocations in the northwestern United States, 1992–2021 Conservation translocations are a common wildlife management tool that can be difficult to implement and evaluate for effectiveness. Genetic information can provide unique insight regarding local impact of translocations (e.g., presence and retention of introduced genetic variation) and identifying suitable source and recipient populations (e.g., adaptive similarity). We developed two genetic data sets and wrote statistical code to evaluate conservation translocation effectiveness into the isolated northwestern region of the greater sage-grouse (Centrocercus urophasianus) distribution and to retrospectively evaluate adaptive divergence among source and recipient populations. Our first data set was microsatellite-based... Tags: Centrocercus urophasianus, Ecology, Genetics, Idaho, Nevada, All tags... Oregon, USGS Science Data Catalog (SDC), United States, Washington, Wildlife Biology, biological population management, biota, conservation genetics, conservation translocation, genetic diversity, genetic monitoring, greater sage-grouse, western United States, wildlife management, wildlife population management, Fewer tags « 1 ... 3 4 5 6 7