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Filters Date Types (for Date Range) Extensions ArcGIS Service Definition (6) Raster (2) Shapefile (2) Types Downloadable (10) Map Service (10) ArcGIS REST Map Service (6) ArcGIS Service Definition (6) GeoTIFF (2) More... Contacts U.S. Geological Survey - ScienceBase Michael P Chenaille Brianne E Brussee Shawn T O'Neil U.S. Geological Survey, Western Ecological Research Center More... Categories Data (18) Data Release - Revised (1) Tag Types Theme (26) Place (26) USGS Scientific Topic Keyword (12) Harvest Set (15) Tag Schemes None (24) USGS Thesaurus (19) Common geographic areas (12) ISO 19115 Topic Category (26) USGS (3) View Results as: JSON ATOM CSV

Fire Response Effects, Biocrust, and Vascular Plant Abundance Following Wildfire near Boise, Idaho (October 2021) Twenty quadrats within the burn perimeter of a September 2021 wildfire outside of Boise, Idaho were surveyed for the abundance of fire effects, biocrusts and vascular plants immediately post-fire. The fire was too small to be named. Char was measured as a proxy for fire intensity. Biocrusts were surveyed by morphogroup (crustose lichens, cup lichens, fruticose lichens, gelatinous lichens, short moss, tall moss) and vascular plants were surveyed by functional group (annual forbs, perennial grasses). Char was measured ocularly and biocrust/plant abundance was measured via point-vertex intercept at 40 points per quadrat. These data support the following publication: Condon, L.A., Shinneman, D.J., Rosentreter, R. and... Categories: Data; Tags: Botany, Great Basin, Idaho, USGS Science Data Catalog (SDC), biota, All tags... botany, community ecology, environment, fires, lichens, mosses, vascular plants, Fewer tags Prediction of raven occurrence intersected with high impact areas for sage-grouse populations in the Great Basin, 2007-2016 (Fig. 5A) Predictions of raven occurrence intersected with high impact areas for sage-grouse populations. The index highlights regions where elevated raven occurrence is likely to impact breeding sage-grouse. Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Great Basin, biota, geographic information systems (GIS), geospatial analysis, habitat alteration, All tags... human impacts, occupancy model, predator-prey interactions, sensitive prey, shrublands, wildlife, Fewer tags Raven study site locations in the Great Basin, derived from survey locations 2007 - 2016 Minimum convex polygons created from survey locations at associated study sites. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Great Basin, boundaries, geographic information systems (GIS), geospatial analysis, habitat alteration, All tags... human impacts, occupancy model, predator-prey interactions, sensitive prey, shrublands, wildlife, Fewer tags Raven Observations near Greater Sage-Grouse Nests in the Great Basin and Bi-State Regions of the Western United States (2009 - 2019) These tables serve as input data for hierarchical models investigating interactions between raven density and Greater Sage-grouse nest success. Observations were recorded over an 11 year time period, spanning from 2009 through 2019. The model is run in JAGS via R, the code is publicly available via the U.S. Geological Survey's GitLab (O'Neil et al. 2023). We recommend not making any changes or edits to the tables unless the user is experienced with hierarchical modeling. References: O'Neil, S.T., Coates, P.S., Webster, S.C., Brussee, B.E., Dettenmaier, S.J., Tull, J.C., Jackson, P.J., Casazza, M.L., and Espinosa, S.P., 2023, Code for a hierarchical model of raven densities linked with sage-grouse nest survival... Categories: Data; Tags: Anthropogenic subsidies, California, Great Basin, Idaho, Nevada, All tags... bi-state, biota, conservation planning, decision support, density surface model, distance sampling, ecology, human impacts, native species, nest survival, population decline, predation, predator-prey, sagebrush, species distribution, species of concern, wildlife, Fewer tags Genotypes and cluster definitions for a range-wide greater sage-grouse dataset collected 2005-2017 (ver 1.1, January 2023) Monitoring change in genetic diversity in wildlife populations across multiple scales could facilitate prioritization of conservation efforts. We used microsatellite genotypes from 7,080 previously collected genetic samples from across the greater sage-grouse (Centrocercus urophasianus) range to develop a modelling framework for estimating genetic diversity within a recently developed hierarchically nested monitoring framework (clusters). The majority of these genetic samples (n=6560) were used in previous research (Oyler-McCance et al. 2014; Cross et. al 2018; Row et. al. 2018). Genetic diversity values associated with clusters across multiple scales could facilitate the identification of areas with low genetic... Categories: Data; Tags: California, Canada, Colorado, Idaho, Montana, All tags... Nevada, North Dakota, Oregon, Saskatchewan, South Dakota, USGS Science Data Catalog (SDC), Utah, Washington, Wyoming, biota, birds, genetics, greater sage-grouse, microsatellites, western United States, Fewer tags Microhabitat Characteristics Influencing Sage-Grouse Nest Site Selection and Survival, Nevada and California (2012-2017) We examined nest survival of Greater Sage-grouse (Centrocercus urophasianus; hereafter, sage-grouse) in relation to fine-scale habitat patterns that influenced nest site selection, using data from nests of telemetered females at 17 sites across 6 years in Nevada and northeastern California, USA. Importantly, sites spanned mesic and xeric average precipitation conditions and concomitant vegetation community structure across cold desert ecosystems of the North American Great Basin. Vegetative cover immediately surrounding sage-grouse nests was important for both nest site selection and nest survival, but responses varied between mesic and xeric sites. For example, while taller perennial grass was selected at xeric... Categories: Data; Tags: California, Ecology, Nevada, USGS Science Data Catalog (SDC), Wildlife Biology, All tags... biota, ecosystems, shrubland ecosystems, vegetation, western United States, Fewer tags Predictions of raven occurrence in the absence of anthropogenic environmental effects in the Great Basin, 2007-2016 (Fig. 4B) Predictions of raven occurrence in the absence of anthropogenic environmental effects. Raven point counts were related to landscape covariates using Bayesian hierarchical occupancy models and the means of the posterior distributions for relevant effects were used to generate the predictions. Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Great Basin, biota, geographic information systems (GIS), geospatial analysis, habitat alteration, All tags... human impacts, occupancy model, predator-prey interactions, sensitive prey, shrublands, wildlife, Fewer tags Predictive Maps of Fuel Break Effectiveness by Treatment Type and Underlying Resilience to Disturbance and Resistance to Invasion Across the Western U.S. Escalated wildfire activity within the western U.S. has widespread societal impacts and long-term consequences for the imperiled sagebrush (Artemisia spp.) biome. Shifts from historical fire regimes and the interplay between frequent disturbance and invasive annual grasses may initiate permanent state transitions as wildfire frequency outpaces sagebrush communities’ innate capacity to recover. Therefore, wildfire management is at the core of conservation plans for sagebrush ecosystems, especially critical habitat for species of conservation concern such as the greater sage-grouse (Centrocercus urophasianus; hereafter sage-grouse). Fuel breaks help facilitate wildfire suppression by modifying behavior through fuels... Tags: California, Colorado, Ecology, Greater Sage-grouse, Idaho, All tags... Montana, Nevada, North Dakota, Oregon, South Dakota, USGS Science Data Catalog (SDC), Utah, Washington, Wyoming, biota, ecology, exotic grass, fires, fuel breaks, habitat alteration and disturbance, human impacts, land use change, sage-grouse, sagebrush ecosystem, shrubland ecosystems, vegetation, western United States, wildfire, wildfire suppression, 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 U.S. range-wide spatial prediction layers of lek persistence probabilities for greater sage-grouse This dataset contains two predictive lek (breeding site) persistence raster layers covering the U.S. greater sage-grouse distribution. In the United States, locations where males display and breed with females (i.e., leks) are often monitored annually by state wildlife agencies, providing valuable information on the persistence of birds in the surrounding areas. A U.S. range-wide lek database was recently compiled for greater sage-Grouse (O’Donnell et al. 2021), providing a standardized source of information to build statistical models to evaluate environmental characteristics associated with lek persistence. The compiled lek database classified a subset of leks as being either active (leks currently used for breeding... Tags: California, Colorado, Ecology, Idaho, Montana, All tags... Nevada, North Dakota, Oregon, South Dakota, USGS Science Data Catalog (SDC), United States, Utah, Washington, Wildlife Biology, Wyoming, biota, greater sage-grouse, lek persistence, Fewer tags Predictions of raven occurrence in the absence of natural environmental effects in the Great Basin, 2007-2016 (Fig. 4A) Predictions of raven occurrence in the absence of natural environmental effects. Raven point counts were related to landscape covariates using Bayesian hierarchical occupancy models and the means of the posterior distributions for relevant effects were used to generate the predictions. Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Great Basin, biota, geographic information systems (GIS), geospatial analysis, habitat alteration, All tags... human impacts, occupancy model, predator-prey interactions, sensitive prey, shrublands, wildlife, Fewer tags Greater sage-grouse genetic warning system, western United States (ver 1.1, January 2023) Genetic variation is a well-known indicator of population fitness yet is not typically included in monitoring programs for sensitive species. Additionally, most programs monitor populations at one scale, which can lead to potential mismatches with ecological processes critical to species’ conservation. Recently developed methods generating hierarchically nested population units (i.e., clusters of varying scales) for greater sage-grouse (Centrocercus urophasianus) have identified population trend declines across spatiotemporal scales to help managers target areas for conservation. The same clusters used as a proxy for spatial scale can alert managers to local units (i.e., fine-scale) with low genetic diversity relative... Categories: Data Release - Revised; Tags: California, Centrocercus urophasianus, Colorado, Greater sage-grouse, Idaho, All tags... Montana, Nevada, North Dakota, Oregon, South Dakota, USGS Science Data Catalog (SDC), United States, Utah, Washington, Wyoming, adaptive management, biota, boundaries, conservation genetics, genetic diversity, genetic monitoring, hierarchical sampling units, population monitoring, western United States, Fewer tags State-and-Transition Simulation Models to explore post-fire habitat restoration in three greater sage-grouse (Centrocercus urophasianus) Priority Areas for Conservation, USA (2018-2068) Wildfires are increasingly modifying wildlife habitat in the western United States and managers need ways to scope the pace and degree to which post-fire restoration actions can re-create habitat in dynamic landscapes. We simulated post-fire revegetation and greater sage-grouse (Centrocercus urophasianus) habitat restoration using a spatially explicit state-transition simulation model (STSM) developed for sagebrush ecosystems. The STSM represented the vegetation dynamics of the sagebrush ecosystem and included annual fires, annual grass invasion, conifer encroachment, and sagebrush revegetation restoration. We compared simulated vegetation output with sage-grouse perennial grass and sagebrush cover habitat needs... Tags: California, Centrocercus urophasianus, Ecology, Greater sage-grouse, Klamath OR/CA Priority Area for Conservation, All tags... NW Interior NV Priority Area for Conservation, Nevada, Oregon, Sagebrush biome, Strawberry Priority Area for Conservation, USGS Science Data Catalog (SDC), United States, Utah, annual grass cover, biota, environment, perennial grass cover, pinyon-juniper cover, post-fire restoration, sage-grouse habitat, sagebrush cover, sagebrush revegetation, state-and-transition simulation model, vegetation change, Fewer tags Data from: Broad-scale occurrence of a subsidized avian predator: reducing impacts of ravens on sage-grouse and other sensitive prey Expanding human enterprise across remote environments impacts many wildlife species, including sage-grouse (Centrocercus urophasianus), an indicator species whose decline is at the center of national conservation strategies and land use policies. Anthropogenic resources provide subsidies for generalist predators, potentially leading to cascading effects on sensitive prey species at lower trophic levels. In semi-arid western ecosystems, common ravens (Corvus corax) are expanding in distribution and abundance, and may be negatively affecting sage-grouse reproductive success at broad spatial scales. Ravens are a common predator of sage-grouse nests, and potentially prey on chicks as well. This research aimed to address... Categories: Data; Tags: Great Basin, USGS Science Data Catalog (SDC), Wildlife Biology, biota, geographic information systems (GIS), All tags... geospatial analysis, habitat alteration, human impacts, occupancy model, predator-prey interactions, sensitive prey, shrublands, wildlife, Fewer tags Median Estimates of Raven Density in California, Nevada, and Idaho (2012 - 2019) Rasters representing median raven density estimates, calculated from approximately 28,000 raven point count surveys conducted between 2009 and 2019. Estimates were the result of a Bayesian hierarchical distance sampling model, using environmental covariates on detection and abundance. Tags: Anthropogenic subsidies, California, Great Basin, Idaho, Nevada, All tags... bi-state, biota, conservation planning, decision support, density surface model, distance sampling, ecology, human impacts, native species, nest survival, population decline, predation, predator-prey, sagebrush, species distribution, species of concern, wildlife, Fewer tags Hierarchical Occupancy Model Code for R and Accompanying Files A hierarchical occupancy model adapted from Royle & Dorazio (2008) and Rota et al. (2011) for use in R. References: Royle, J.A. and Dorazio, R.M., 2008. Hierarchical modeling and inference in ecology: the analysis of data from populations, metapopulations and communities. Academic Press. doi:10.1016/B978-0-12-374097-7.50001-5 J. Andrew Royle, Robert M. Dorazio, Rota, C. T., Fletcher Jr, R. J., Dorazio, R. M. and Betts, M. G. (2009), Occupancy estimation and the closure assumption. Journal of Applied Ecology, 46: 1173-1181. doi:10.1111/j.1365-2664.2009.01734.x Categories: Data; Tags: Great Basin, farming, geographic information systems (GIS), geospatial analysis, habitat alteration, All tags... human impacts, livestock, occupancy model, predator-prey interactions, sensitive prey, shrublands, wildlife, Fewer tags Trends and a Targeted Annual Warning System for Greater Sage-Grouse in the Western United States (ver. 2.0, May 2023) Greater sage-grouse (Centrocercus urophasianus) are at the center of state and national land use policies largely because of their unique life-history traits as an ecological indicator for health of sagebrush ecosystems. These data represent an updated population trend analysis and Targeted Annual Warning System (TAWS) for state and federal land and wildlife managers to use best-available science to help guide current management and conservation plans aimed at benefitting sage-grouse populations range-wide. This analysis relied on previously published population trend modeling methodology from Coates and others (2021, 2022) and includes population lek count data from 1960–2022. Bayesian state-space models estimated... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, Colorado, Idaho, Montana, Nevada, All tags... North Dakota, Oregon, South Dakota, USGS Science Data Catalog (SDC), Utah, Washington, Wyoming, adaptive management, biota, ecology, human impacts, long-term ecological monitoring, shrubland ecosystems, targeted monitoring, triggers, warning system, western United States, Fewer tags Data to Support Hierarchical Models and Decision Support Maps to Guide Management of Subsidized Avian Predator Densities We combined approximately 28,000 raven point count surveys with data from more than 900 sage-grouse nests between 2009 and 2019 within the Great Basin, USA. We modeled variation in raven density using a Bayesian hierarchical distance sampling approach with environmental covariates on detection and abundance. Concurrently, we modeled sage-grouse nest survival using a hierarchical frailty model as a function of raven density as well as other environmental covariates that influence risk of failure. Raven density commonly exceeded more than 0.5 ravens per square kilometer and increased at low relative elevations with prevalent anthropogenic development and/or agriculture. Reduced sage-grouse nest survival was strongly... Tags: Anthropogenic subsidies, California, Ecology, Great Basin, Idaho, All tags... Nevada, USGS Science Data Catalog (SDC), bi-state, biota, conservation planning, decision support, density surface model, distance sampling, ecology, human impacts, native species, nest survival, population decline, predation, predator-prey, sagebrush, species distribution, species of concern, wildlife, Fewer tags Raven Occurrence and Density in the Great Basin Region of the Western United States (2007-2019) We generated a spatially explicit map of categories of expected occurrence and density associated with predicted concentrations of resident and transient common ravens (Corvus corax; ravens) using the residuals from a generalized linear regression between the occurrence and density parameters. These data support the following publication: Webster, S.C., O'Neil, S.T., Brussee, B.E., Coates, P.S., Jackson, P.J., Tull, J.C. and Delehanty, D.J., 2021. Spatial modeling of common raven density and occurrence helps guide landscape management within Great Basin sagebrush ecosystems. Human–Wildlife Interactions, 15(3), p.10. https://doi.org/10.26077/djza-3976. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: California, Colorado, Great Basin, Idaho, Montana, All tags... Nevada, Oregon, USGS Science Data Catalog (SDC), Utah, Wildlife Biology, Wyoming, biota, density, occurrence, predator-prey, space use, species distribution models, transients, wildlife, Fewer tags Median Estimates of Impact Potential from Geothermal Energy Production Activities on Greater Sage-Grouse Populations in Nevada and California (2022) These data are the result of an intersection between a surface representing the delta-finite rate of population change and another surface representing Greater Sage-grouse abundance and space-use. It was used to rank candidate sites according to greatest potential impact to Greater Sage-grouse populations resulting from the presence of geothermal energy activity. In 2022, candidate geothermal sites were identified in Nevada and eastern California, then buffered by 10 kilometers. While the extent of the overall raster layer encompasses a very large swath of the western US, data values are limited to fall within these 10 kilometer buffers. These data support the following publications: Coates, P.S., Prochazka, B.G.,... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: California, Ecology, Great Basin, Nevada, USGS Science Data Catalog (SDC), All tags... Wildlife Biology, before-after-control-impact, biota, decision support tool, habitat alteration and disturbance, human impacts, land use change, native species, sagebrush ecosystem, shrubland ecosystems, state space model, survival analysis, western United States, Fewer tags 1 2 »