Filters: Tags: sagebrush (X) > Date Range: {"choice":"year"} (X)
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Climate change over the past century has altered vegetation community composition and species distributions across rangelands in the western United States. The scale and magnitude of climatic influences are largely unknown. We used fractional component cover data for rangeland functional groups and weather data from the 1985 to 2023 reference period in conjunction with soils and topography data to develop empirical models describing the spatio-temporal variation in component cover. To investigate the ramifications of future change across the western US, we extended models based on historical relationships over the reference period to model landscape effects based on future weather conditions from two emissions scenarios...
Invasive annual grasses are a primary, severe, and challenging threat to habitat conservation and restoration for sage-dependent wildlife across federal, state and private lands. Successful management solutions for sagebrush rangelands are likely to be multiphasic, involving some sequence of interventions such as herbicides, seeding of competitive natives that also create habitat, and temporarily altering land use, in an adaptive-management approach. The proposed work tests different herbicides and options for applying them with different seeding and land uses, across a gradient of climate and soils in Interior Regions 5 and 7.This research will examine the efficacy of management options for controlling cheatgrass...
Categories: Data,
Project;
Tags: CO,
Decision Support,
Federal resource managers,
Project,
SA Science Catalog,
Conifer encroachment is one of the most significant threats to sagebrush habitats and the species that rely on them. Removal of encroaching conifers is beneficial for Greater Sage-Grouse, but impacts on other sagebrush-obligate species are not well understood. This project aims to quantify the impact of conifer removal on sagebrush songbird abundance and reproductive success. Work has been initiated through a previously-supported (by IR5/7 SA) Cooperative Fish and Wildlife Research Unit project across six conifer-removal and six conifer-remaining (control) plots of ca. 55 ha each. Initial results suggest that conifer removal benefits both abundance and nesting success of sagebrush-obligate species (Brewers Sparrows...
Categories: Data,
Project;
Tags: Contractual Document,
Project,
SA Science Catalog,
Sagebrush,
Strategic Science - 1420,
Using a solutions-oriented, multi-agency collaboration, we propose to pilot a large-scale assessment of an alternative (herding, electric- and virtual-fence) grazing strategy designed to mimic pre-colonial grazing patterns by bison, to ascertain their value for local- and regional-scale assemblages ofsagebrush- and grassland-associated birds in Montana. A fundamental goal of most wildlife-based grazing programs is to foster a mosaic of patches that represent the broadest possible spectrum of habitat types that benefits different sagebrush- and grassland-associated birds in different parts of the landscape (for example, western meadowlarks, vesper sparrows, and thick-billed longspur in open, heavily grazed areas;...
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Federal resource managers,
Grasslands,
Project,
SA Science Catalog,
Sagebrush,
a. Develop a regional map showing the highest probability pathways of wildfire spread under current conditions.b. Design regional networks of fuel breaks to reduce future wildfire size in large remnant tracts of priority GSG habitat. Networks will be designed by modeling fire spread with fuel breaks using Circuitscape (http://www.Circuitscape.org/), a wildlife connectivity software based on electrical circuit theory applied to a raster map, and consulting with agencies and tribes about regional priority habitats in southern ID and OR, northern NV,and northwestern UT.c. Deliver GIS layers and maps showing suggested networks of fuel breaks to federal and state agencies, and tribes. This will allow fire managers to...
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Datasets/Database,
Project,
SA Science Catalog,
Sagebrush,
USFWS Science Applications Science Catalog,
Emerging applications of ecosystem resilience and resistance concepts in sagebrush ecosystems allow managers to better predict and mitigate impacts of wildfire and invasive annual grasses. Soil temperature and moisture strongly influence the kind and amount of vegetation, and consequently, are closely tied to sagebrush ecosystem resilience and resistance (Chambers et al. 2014, 2016). Soil taxonomic temperature and moisture regimes can be used as indicators of resilience and resistance at landscape scales to depict environmental gradients in sagebrush ecosystems that range from cold/cool-moist sites to warm-dry sites. We aggregated soil survey spatial and tabular data to facilitate broad-scale analyses of resilience...
Categories: Data;
Types: Citation;
Tags: Data,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
LCC Network Science Catalog,
Resistance and Resilience,
Resistance and Resilience,
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...
The Integrated Rangeland Fire Management Strategy (hereafter Strategy, DOI 2015) outlined the need for coordinated, science-based adaptive management to achieve long-term protection, conservation, and restoration of the sagebrush (Artemisia spp.) ecosystem. A key component of this management approach is the identification of knowledge gaps that limit implementation of effective strategies to meet current management challenges. The tasks and actions identified in the Strategy address several broad topics related to management of the sagebrush ecosystem. This science plan is organized around these topics and specifically focuses on fire, invasive plant species and their effects on altering fire regimes, restoration,...
Categories: Data;
Tags: Artemisia spp.,
California,
Centrocercus urophasianus,
Conservation,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
The distribution of the greater sage-grouse (hereafter sage-grouse; Centrocercus urophasianus) has declined to 56% of its pre-settlement distribution (Schroeder et al. 2004) and abundance of males attending leks has decreased substantially over the past 50 years throughout the species’ range (Garton et al. 2011, Garton et al. 2015, WAFWA 2015). Livestock grazing is a common land use within sage-grouse habitat, and livestock grazing has been implicated by some experts as one of numerous factors contributing to sage-grouse population declines (Beck and Mitchell 2000, Schroeder et al. 2004). However, there are also numerous mechanisms by which livestock grazing might benefit sage-grouse (Beck and Mitchell 2000, Crawford...
Covering 120 million acres across 14 western states and 3 Canadian provinces, sagebrush provides critical habitat for species such as pronghorn, mule deer, and sage-grouse – a species of conservation concern. The future of these and other species is closely tied to the future of sagebrush. Yet this important ecosystem has already been affected by fire, invasive species, land use conversion, and now, climate change. In the western U.S., temperatures are rising and precipitation patterns are changing. However, there is currently a limited ability to anticipate the impacts of climate change on sagebrush. Current methods suffer from a range of weakness that limits the reliability of results. In fact, the current uncertainty...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2015,
CASC,
Completed,
Landscapes,
Landscapes,
These datasets provide early estimates of 2024 fractional cover for exotic annual grass (EAG) species and one native perennial grass species on a weekly basis from April to late June. Typically, the EAG estimates are publicly released within 7-13 days of the latest satellite observation used for that version. Each weekly release contains five fractional cover maps along with their corresponding confidence maps for: 1) a group of 16 species of EAGs, 2) cheatgrass (Bromus tectorum); 3) Field Brome (Bromus arvensis); 4) medusahead (Taeniatherum caput-medusae); and 5) Sandberg bluegrass (Poa secunda). These datasets were generated leveraging field observations from Bureau of Land Management (BLM) Assessment, Inventory,...
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....
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.
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,
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,
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