Filters: Tags: Sagebrush (X)
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Sagebrush vegetation communities were extracted from state ReGAP and Landfire Exisitng Vegetation (California only). The individual rasters were mosaiced to create a single raster than represent Sagebrush with the NGB ecoregion. Low sagebrush, Wyoming and Basin Big sagebrush and Mountain Big sagebrush were separated to be analyzed separately.
Accurate and consistent estimates of shrubland ecosystem components are crucial to a better understanding of ecosystems condition in arid and semiarid lands. We developed an innovative approach by integrating multiple information to quantify shrubland components as continuous field products within the National Land Cover Database (NLCD). The approach consists of five major parts: field sample collection, high-resolution mapping of shrubland components using WorldView-2 imagery and regression tree models, Landsat 8 radiometric balancing and phenological mosaicking, coarse resolution estimate of shrubland components across a large geographic extent using Landsat 8 phenological mosaics and regression tree models, and...
Accurate and consistent estimates of shrubland ecosystem components are crucial to a better understanding of ecosystems condition in arid and semiarid lands. We developed an innovative approach by integrating multiple information to quantify shrubland components as continuous field products within the National Land Cover Database (NLCD). The approach consists of five major parts: field sample collection, high-resolution mapping of shrubland components using WorldView-3 imagery and regression tree models, Landsat 8 radiometric balancing and phenological mosaicking, coarse resolution estimate of shrubland components across a large geographic extent using Landsat 8 phenological mosaics and regression tree models, and...
The INL Ecohydrology Experiment uses irrigation to simulate increased winter or summer precipitation. Treatments include a doubling of annual precipitation added in summer (four 50-mm events) or in winter (two 100-mm events added), and non-irrigated control plots. Standard USDA species abbreviations are used.
Categories: Data;
Tags: Big wyoming sagebrush,
Grasslands and Plains,
Great Basin,
Idaho,
Landscapes,
This map was developed to examine multi-scale spatial relationships between percentage of sagebrush and other response variables of interest. A map of sagebrush in the western United States was used as a base layer for a moving window analysis to calculate the percentage of the area classified as sagebrush within a 5-km search radius.
This dataset contains observations used to better understand the initial establishment of sagebrush (Artemisia sp.), in the first 1-2 years post-wildfire. Field data come from 460 sagebrush populations sampled across the Great Basin and many GIS-derived co-variates are included as well.
FY2014Although the future of sage grouse depends on the future of sagebrush, we have limited ability to anticipate impacts of climate change on sagebrush populations. Current efforts to forecast sagebrush habitat typically rely on species distribution models (SDMs), which suffer from a variety of well-known weaknesses. However, by integrating SDMs with complementary research approaches, such as historical data analysis and mechanistic models, we can provide increased confidence in projections of habitat change. Our goal is to forecast the effect of climate change on the distribution and abundance of big sagebrush in order to inform conservation planning, and sage grouse management in particular, across the Intermountain...
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Academics & scientific researchers,
Conservation Planning,
Datasets/Database,
Federal resource managers,
Great Basin,
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...
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...
The RCMAP (Rangeland Condition Monitoring Assessment and Projection) dataset quantifies the percent cover of rangeland components across the western U.S. using Landsat imagery from 1985-2021. The RCMAP product suite consists of nine fractional components: annual herbaceous, bare ground, herbaceous, litter, non-sagebrush shrub, perennial herbaceous, sagebrush, shrub, and tree, in addition to the temporal trends of each component. Several enhancements were made to the RCMAP process relative to prior generations. First, we have trained time-series predictions directly from 331 high-resolution sites collected from 2013-2018 from Assessment, Inventory, and Monitoring (AIM) instead of using the 2016 “base” map as an intermediary....
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...
Rangelands have immense inherent spatial and temporal variability, yet assessments of land condition and trends are often assessed relative to the condition of a limited number of representative points. Ecological Potential (EP) data are spatially comprehensive, quantitative, and needed as a baseline for comparison of current rangeland vegetation conditions, trends, and management targets. We define EP as the potential fractional cover of vegetation components bare ground, herbaceous, litter, shrub, and sagebrush represented in the least disturbed and most productive portion of the western U.S. This dataset enables: 1) setting realistic expectations for restoration and management targets at 30-meter resolution,...
Sixty-eight monitoring plots within the Browns Park National Wildlife refuge in Northwest Colorado were surveyed in the Summer of 2007 and 2021 for vegetation-community changes after grazing cessation in 1986. Surveys consisted of line-point intercept measurements at 0.5m intervals along three 15-m transects arranged in a spoke around plot center at each plot location.
This funding will be used to hire 1 GS 9/11 staff member to work directly with local governments (Soil & Water Conservation Districts) to enroll landowners in priority habitats in existing Candidate Conservation Agreements with Assurances (CCAAs) and in Candidate Conservation Agreements (CCAs) on their adjacent BLM allotments. Once enrolled, state and other federal funding sources are available to support sagebrush habitat enhancement projects that address invasive species, fire, juniper encroachment and other threats. The additional capacity is expected to result in an additional +100 landowners enrollments.
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Capacity,
Capacity,
Capacity - BIL,
Other,
Project,
This funding will be used to hire 1 GS 5/7 term position based in Northeastern Wyoming, to support projects in Sage Core Areas in Northeastern Wyoming.
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Capacity,
Capacity - BIL,
Other,
Project,
SA Science Catalog,
We propose to evaluate reproductive vital rates of sagebrush songbirds in relation to key aspects of local climate. To accomplish this we will leverage several large existing datasets of nesting observations from over six thousand nests across multiple years and sites, archived weather station data (temperature, precipitation, and relative humidity), and gridded climate datasets (e.g., PRISM). To further examine whether particular landscapes and/or microhabitats may confer more protection in the face of increasingly more extreme weather events (e.g., high temperatures and drought) expected with climate change, we will incorporate habitat data collected remotely and at nests into climatic response models. Finally,...
Categories: Data,
Project;
Tags: Contractual Document,
Project,
SA Science Catalog,
Sagebrush,
USFWS Science Applications Science Catalog,
Vulnerability of Sagebrush Ecosystem Permeability to Human Modification within the Green River Basin
The landscape permeability model represents the structural connectivity of sagebrush ecosystem habitat in the Green River Basin (including ~5-10 km boundary outside of the GRB. This model connects patches of habitat, across the landscape using resistances that represent the degree of human modification and slope (energetic costs), using the Multi-Scale Landscape Permeability model (Theobald et al. 2012; Theobald unpublished). We used two metrics: (a) patch importance and (b) betweeness centrality amongst patches. These metrics were summarized for each HUC12. This dataset represents the vulnerability of sagebrush ecosystem permeability to human modification summarized for each HUC12 watershed within the Green River...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Colorado,
Green River Basin,
Utah,
Wyoming,
biota,
We will apply indices of sagebrush ecological integrity, developed by WAFWA, to hierarchical population models of sage-grouse population rates of change over multiple decades to facilitate comprehensive understanding of the links between sagebrush ecosystem health and sagebrush obligate species from the lens of the Conservation Design Strategy. This research will investigate application of core area habitat concepts as it relates to sage-grouse population performance to manage lands within the sagebrush biome. The analysis framework and science deliverables developed from this study can be used as a basis to investigate the population performance of additional species of concern, beyond sage-grouse, in relation...
This project will support the use of the Breeding Bird Survey (BBS) data to calculate current populations, population trend, and ultimately desired population objectives for the priority species outlined in the IR 5/7 SHC Plan. Benchmarks will be estimated to highlight grassland and sagebrush habitat needed to support desired populations as outlined in the Partners in Flight Plan by 2050. The BCR specific population targets provide a solid foundation to continue to build and refine the R6 SHC Teams Work towards effective planning and ultimately effective on-the-ground conservation delivery. A $55,000 investment supports conservation priorities for both Grassland and Sagebrush Ecosystems.
Categories: Data,
Project;
Tags: Grasslands,
Project,
SA Science Catalog,
Sagebrush,
Strategic Science - 1420,
Informed wildlife management requires robust information regarding population status, habitat requirements, and likely responses to changing resource conditions. Growing evidence indicates single species management may inadequately conserve communities and result in undesired effects to non-target species. Thus, management can benefit from habitat relationship information for multiple species within, and across, ecosystems. Using 13 years of point count data (2008-2020) collected across the western United States and a suite of relevant covariates for habitat, we fit hierarchical models to characterize and predict songbird densities and evaluate population trends for 11 species of interest: Bewick’s Wren (Thryomanes...
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