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These data were compiled to investigate the evolutionary history of Hilaria jamesii, Hilaria mutica, and Hilaria rigida. The data release consists of two tab delimited text files that may be used to infer population structure (viva_structure.stru) or relationships among sampling localities (viva.phylip). Files record genetic variation on an individual (.stru) or sampling locality (.phylip) level. These files may be opened and edited in a text editor program, such as Notepad ++ (PC) or BBEdit (Mac). The .phylip file can be uploaded to phyML or SVDQuartets to generate a tree-based visualization of relationships ( http://www.atgc-montpellier.fr/phyml/ or https://paup.phylosolutions.com, repectively). The .stru file...
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FY2014Land management agencies seek to understand how organisms use the landscape in order to develop management strategies that maintain healthy, resilient communities that have the ecological and evolutionary potential to respond to climate change. An ideal approach to understanding how organisms move through the landscape is by inferring ongoing and historic movements from patterns of genetic continuity that characterize regional sets of populations. From patterns of genetic connectivity we can infer the habitat and landscape characteristics that facilitate animal movement and species range shifts over both short and long timescales. Knowing the spatial distribution of critical linkages or corridors allows conservation...
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FY2014The Conservation Biology Institute (CBI) will work with the Great Basin to develop a Conservation Planning Atlas (also commonly called gateways) using Data Basin technology (www.databasin.org) to serve the data integration, collaboration and partner engagement needs.Conservation Planning Atlases (CPA) are a customized interface of the Data Basin platform that include special branding, curation of spatial content, direct links to selected sites (e.g., other LCC Conservation Planning Atlas (e.g., nplcc.databasin.org), additional upload capacity if needed, and access to premium analytical tools. The CPA will allow Great Basin LCC staff and stakeholders to integrate spatial information to coordinate and promote...
Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: California, California, California, California, California, All tags...
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FY2016Monitor the diversity and abundance of winged insects (including Lepidoptera, Hymenoptera, Coleoptera, Diptera, and Hemiptera), which include many key insect pollinators, using an array of passive and active trapping methods. Monitor bat diversity and relative densities using passive acoustic monitoring stations (we will use full-spectrum passive recording units). Monitor diversity and abundance of reptiles (lizards and snakes), using trap arrays (pitfall and coverboard) and time-constrained visual encounter surveys. Create empirically supported models of reptile, bat, and insect diversity and abundance as a function of vegetation structure and composition, microclimate, and other environmental variables,...
Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, Datasets/Database, Federal resource managers, Great Basin, Great Basin, All tags...
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FY2017Removal of livestock grazing is a common prescription to promote ecosystem recovery after wildfire (and subsequent emergency site rehabilitation efforts). Ecosystem recovery is typically considered from a terrestrial perspective, but wildfire and grazing can strongly influence aquatic ecosystems as well, especially smaller and fragmented stream networks, which are prevalent in the Great Basin (Minshall et al. 1989[1]; Dunham et al. 2003[2]; Luce et al. 2012[3]). Understanding these influences is essential for managing fire and grazing. Examples include identifying timeframes for resuming livestock grazing following wildfire, and the interactions between livestock grazing, fuels, and recovery of stream-side...
Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Data Acquisition and Development, Federal resource managers, Generalized Random Tesselation Stratified, Generalized Random Tesselation Stratified, Generalized Random Tesselation Stratified, All tags...
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Developed alongside a scenario planning process, this spatially explicit analysis assesses key stressors on Great Basin systems in order to inform alternative futures. Project outputs include land cover, plant and wildlife species and community distributions, urban development, and future habitat under climate scenarios. These data are available to be explored and downloaded through a web-based portal.
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The RCMAP (Rangeland Condition Monitoring Assessment and Projection) dataset quantifies the percent cover of rangeland components across western North America using Landsat imagery from 1985-2023. The RCMAP product suite consists of ten fractional components: annual herbaceous, bare ground, herbaceous, litter, non-sagebrush shrub, perennial herbaceous, sagebrush, shrub, tree, and shrub height in addition to the temporal trends of each component. Several enhancements were made to the RCMAP process relative to prior generations. First, high-resolution training was revised using an improved neural-net classifier and modelling approach. These data serve as foundation to the RCMAP approach. The training database was...
Tags: AB, AZ, Alberta, Arizona, Arizona Plateau, All tags...
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The RCMAP (Rangeland Condition Monitoring Assessment and Projection) dataset quantifies the percent cover of rangeland components across western North America using Landsat imagery from 1985-2023. The RCMAP product suite consists of ten fractional components: annual herbaceous, bare ground, herbaceous, litter, non-sagebrush shrub, perennial herbaceous, sagebrush, shrub, tree, and shrub height in addition to the temporal trends of each component. Several enhancements were made to the RCMAP process relative to prior generations. First, high-resolution training was revised using an improved neural-net classifier and modelling approach. These data serve as foundation to the RCMAP approach. The training database was...
Tags: AB, AZ, Alberta, Arizona, Arizona Plateau, All tags...
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The need to monitor change in sagebrush steppe is urgent due to the increasing impacts of climate change, shifting fire regimes, and management practices on ecosystem health. Remote sensing provides a cost-effective and reliable method for monitoring change through time and attributing changes to drivers. We report an automated method of mapping rangeland fractional component cover over a large portion of the Northern Great Basin, USA, from 1986 to 2016 using a dense Landsat imagery time series. 2012 was excluded from the time-series due to a lack of quality imagery. Our method improved upon the traditional change vector method by considering the legacy of change at each pixel. We evaluate cover trends stratified...
Tags: AZ, Arizona, Arizona Plateau, Black Hills, Blue Mountains, All tags...
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These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This data set contains lines illustrating general direction of groundwater flow within Dixie Valley, west-central Nevada.
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These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. With increasing population growth and land-use change, urban communities in the desert southwest are progressively looking to remote basins to supplement existing water supplies. Recent applications for groundwater appropriations from Dixie Valley, Nevada, a primarily undeveloped basin neighboring the Carson Desert to the east, have prompted a reevaluation of the quantity of naturally discharging groundwater. The objective of this...
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Project to provide information to support the GBLCC’s implementation of a new project tracking system.FY2016Nevada Department of Wildlife (NDOW) is a member of the Great Basin Landscape Conservation Cooperative (GBLCC) steering committee. NDOW would like to strategically partner with the GBLCC and others to collaborate on data gathering, organizing, identifying geographic priorities and creating a strategic plan for habitat work. However, NDOW lacks a larger guiding document or strategic plan that demonstrates their strategic priorities in terms of wildlife management and habitat projects. Such a guiding document would further NDOWs efforts to provide enhanced leadership across the state and build closer and more...
We integrated 250-m enhanced Moderate Resolution Imaging Spectroradiometer (eMODIS) Normalized Difference Vegetation Index (NDVI) with land cover, biogeophysical (e.g., soils, topography) and climate data into regression-tree software (Cubist®). We integrated this data to create a time series of spatially explicit predictions of herbaceous annual vegetation cover in sagebrush ecosystems, with an emphasis on annual grasses. Annual grass cover in sagebrush ecosystems is highly variable year-to-year because it is strongly dependent on highly variable weather patterns, particularly precipitation timing and totals. Annual grass cover also reflects past disturbances and management decisions. We produced 17 consecutive...
The objective of this preliminary modeling effort was to prepare a single HexSimPLE model for the Northern Basin Pygmy rabbit population within the geographic extent of the Northwest Basin and Range landscape (Figure 1, https://www.fws.gov/science/catalog range). Population parameters derived from the literature and reviewed by the U.S. Fish and Wildlife Service (USFWS) refuges team were used to populate a simplified individual- based model (IBM) platform to develop a reasonable yet simplistic representation of pygmy rabbit movement, habitat use, and population dynamics in this landscape. This preliminary modeling effort was used to make qualitative comparisons among hypothetical land management scenarios. Results...
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Values represent percent of surrounding landscape (5K) are dominated by sagebrush cover. Reclassified LANDFIRE 2013 Existing Vegetation Type by selecting the ecological systems containing sagebrush (Codes: 2080, 2125, 2126, 2220, 2064, 2072, 2079, 2124) to create a binary raster dataset with 1 for the sagebrush land cover types and zero for all others.To incorporate sagebrush lost to fire in fires since the Landsat was flown in 2010 that Landfire was derived from, I used fire perimeters from 2011,2012, & 2013 to reclassify pixels designated as having sagebrush as 0 (not having sagebrush), which assumes a homogenous burn (in reality there may be patches of sagebrush left within a burn perimeter). I then ran focalsum...
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FY2014This projects main goals are to assess the effects of grazing by feral horses and livestock on Greater Sage-grouse demography and habitats. The Sheldon-Hart Mountain National Wildlife Refuge Complex and adjacent lands managed by the Bureau of Land Management provide the unique opportunity to assess sage-grouse populations free of feral horses and livestock grazing, populations that only have feral horses, as well as populations that coincide with both livestock grazing and feral horses. The project team will:1)Use historical sage-grouse data collected from Hart Mountain before and immediately after livestock were removed in the early 1990s, and historical data from Sheldon before the irruption of feral horses...
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FY2014Recent drought, change agents and the spectrum of greater management needs have highlighted the relative dearth of in situ weather and climate measurement stations in the Great Basin. Thus, interest has grown in supplementing or initiating atmospheric and hydrologic measurements.The purpose of this project was: To review the existing station networks in the context of management needs by providing examples of how climate observation gaps can be assessed Provide some guidelines for the placement of new or augmented stations.This project was funded as a target of opportunity.
Land managers are responsible for developing effective strategies for conserving and restoring Great Basin ecosystems in the face of invasive species, conifer expansion, and altered fire regimes. A warming climate is magnifying the effects of these threats and adding urgency to implementation of management practices that will maintain or improve ecosystem functioning. This Factsheet Series was developed to provide land managers with brief summaries of the best available information on contemporary management issues to facilitate science delivery and foster effective management. Each peer-reviewed factsheet was developed as a collaborative effort among knowledgeable scientists and managers. The series begins with...
Alpine and subalpine plant species are of special interest in ecology and ecophysiology because they represent life at the climate limit and changes in their relative abundances can be a bellwether for climate-change impacts. Perennial life forms dominate alpine plant communities, and their form and function reflect various avoidance, tolerance, or resistance strategies to interactions of cold temperature, radiation, wind, and desiccation stresses that prevail in the short growing seasons common (but not ubiquitous) in alpine areas. Plant microclimate is typically uncoupled from the harsh climate of the alpine, often leading to substantially warmer plant temperatures than air temperatures recorded by weather stations....
In 2013, the U.S. Fish and Wildlife Service (USFWS) Conservation Objectives Team (COT) identified wildfire and the associated conversion of low- to mid-elevation sagebrush (Artemisia tridentata) habitats to invasive annual grass-dominated vegetation communities as the two primary threats to the sustainability of Greater sage-grouse (Centrocercus urophasianus, hereafter GRSG) in the western portion of the species range (USFWS 2013). To facilitate the examination and evaluation of the role fire and invasive plants play in the conservation of GRSG, the USFWS solicited the assistance of the Western Association of Fish and Wildlife Agencies (WAFWA) to conduct a collaborative assessment of the conservation challenges...


map background search result map search result map Dataset: Sagebrush MW5k Percent Landscape Connectivity of a Sagebrush Obligate: Functional Continuity of Habitat for the Pygmy Rabbit Measuring the Regional Impacts of Pinyon and Juniper Removal on Insect, Bat, and Reptile Communities Wildfire, grazing and availability of water in sage steppe ecosystems Website: Alternative Futures for the Central Great Basin Development of a Conservation Planning Atlas to Improve Regional GIS Data Integration, Collaboration, and Partner Engagement Assessment of Climate Monitoring For Land Management in the Great Basin Assessment of Impacts of Feral Horses and Livestock Grazing on Sage-grouse and their Habitats: Long-term trends in sage-grouse demography and habitats on the Sheldon-Hart Mountain NWRC and adjacent lands Strategic Planning Document for Nevada Department of Wildlife and Great Basin Landscape Conservation Cooperative 'Viva' native plant material data in support of restoration and conservation Remote Sensing Shrub/Grass National Land Cover Database (NLCD) Back-in-Time (BIT) Products for the Western U.S., 1985 - 2018 Evapotranspiration units for Dixie Valley, Churchill County, Nevada Lines used to illustrate the general direction of groundwater flow of Dixie Valley, west-central Nevada Rangeland Condition Monitoring Assessment and Projection (RCMAP) Annual Herbaceous Fractional Component Time-Series Across Western North America from 1985-2023 Rangeland Condition Monitoring Assessment and Projection (RCMAP) Sagebrush Fractional Component Time-Series Across Western North America from 1985-2023 Assessment of Impacts of Feral Horses and Livestock Grazing on Sage-grouse and their Habitats: Long-term trends in sage-grouse demography and habitats on the Sheldon-Hart Mountain NWRC and adjacent lands Measuring the Regional Impacts of Pinyon and Juniper Removal on Insect, Bat, and Reptile Communities Evapotranspiration units for Dixie Valley, Churchill County, Nevada Wildfire, grazing and availability of water in sage steppe ecosystems Lines used to illustrate the general direction of groundwater flow of Dixie Valley, west-central Nevada Website: Alternative Futures for the Central Great Basin Strategic Planning Document for Nevada Department of Wildlife and Great Basin Landscape Conservation Cooperative 'Viva' native plant material data in support of restoration and conservation Development of a Conservation Planning Atlas to Improve Regional GIS Data Integration, Collaboration, and Partner Engagement Assessment of Climate Monitoring For Land Management in the Great Basin Landscape Connectivity of a Sagebrush Obligate: Functional Continuity of Habitat for the Pygmy Rabbit Rangeland Condition Monitoring Assessment and Projection (RCMAP) Annual Herbaceous Fractional Component Time-Series Across Western North America from 1985-2023 Rangeland Condition Monitoring Assessment and Projection (RCMAP) Sagebrush Fractional Component Time-Series Across Western North America from 1985-2023 Dataset: Sagebrush MW5k Percent Remote Sensing Shrub/Grass National Land Cover Database (NLCD) Back-in-Time (BIT) Products for the Western U.S., 1985 - 2018