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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...
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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,...
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The overall objective of this work is to understand how changing climate and associated ecohydrological conditions will impact the distribution of sagebrush ecosystems over the next century. This study will provide valuable insight into the vulnerability of sagebrush ecosystems to changes in climate, climate variability, and disturbance regime. This work utilizes the best currently available downscaled climate data (Maurer) and builds upon recent published results. Products from this project will provide wildlife managers with the ability to categorize and prioritize areas based on their probability of being capable of supporting sagebrush ecosystems in the future, information that is crucial for upcoming listing...
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In partnership with WAFWA MDWG and many participating western states, we propose the following three-pronged plan:1) Develop a standalone program which simplifies the technologically challenging analyses outlined in Sawyer et al. (2009b) into a user-friendly software add-on that can be implemented by biologists and managers using their own GPS collar data. 2) Work with biologists and managers of state agencies to analyze mule deer data sets. Specifically, using the program outlined in objective 1, we will assess the broad applicability of the analysis methods to identify migration corridors. This step will include the development of a list of key issues and considerations for analyzing these types of data in addition...
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There is a critical science need of identifying costs, amortized into the future, associated with prioritizing invasive annual grass management as fuels management to prevent costs of further wildland fire in high priority core areas. An invasive annual grass economic assessment will increase awareness of the resource needs and cost-effectiveness based on an evaluation of return on investment through a spatially prioritized approach for implementation. Realistic estimates for costs and ecological outcomes from allocation scenarios will define resources needed stepped down from a conservation design of Defend and Grow the Core Sagebrush Areas. This information will directly inform programmatic implementation levels...
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We will use recently-developed models (see Hanser et al. 2011a) mapping the occurrence or abundance of six sagebrush obligate or near-obligate species of conservation concern (four songbirds, one reptile, and one mammal). We will evaluate how important habitats for each species overlap with similarly developed sage-grouse habitat occurrence models (Hanser et al. 2011b), as well as how sage-grouse priority habitats overlap with biodiversity hotspots for the other sagebrush species. This project will evaluate the degree to which sage-grouse conservation can act as an umbrella for other sagebrush dependent species within the Wyoming Basins ecoregion, the Utah-Wyoming-Rocky Mountain ecoregions in their entirety and...
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This raster portrays the distribution of sagebrush within the geographic extent of the sagebrush biome in the United States. It was created for the Western Association of Fish and Wildlife Agency’s (WAFWA) Sagebrush Conservation Strategy publication as a visual for the schematic figures and to calculate summary statistics. This distribution incorporates the most recently available sagebrush cover mapping (Xian et al. 2015, Rigge et al. 2019) and classified LANDFIRE EVT (Department of Ecosystem Science, University of Wyoming 2016). Both datasets were rigorously evaluated and extensive ground measurements taken to evaluate accuracy by the respective authors. We created a combined binary sagebrush distribution by classifying...
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Trends in greater sage-grouse breeding populations are typically indexed by determining the peak number of males attending a lek in a lekking season. Numerous studies have estimated negative trends in sage-grouse breeding populations over time via data collected for the last 50 years. However, the inherent bias in data collection and unknown relationship between lek counts and population size limits the utility of using counts to evaluate range-wide population trends. This study estimated trends in the male segment of greater sage-grouse breeding populations within core and periphery areas in seven habitat management zones during two time periods, 1965-2015 and 2005-2015. In addition, we compared analysis methods...
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This project expands upon a large, multi-agency collaborative study (Univ. of Idaho, Idaho Game and Fish, BLM, Great Basin LCC & two grazing Associations) evaluating the impacts of alternative grazing systems on sage-grouse over a 10-year period using a staggered entry BACI design. This project will evaluate the effects of grazing management prescriptions (intended to be compatible with greater sage-grouse) on other sagebrush-obligate or associated avian species. The results will contribute to an adaptive management process by: 1) assessing current state of populations of sagebrush-dependent birds as well as limiting factors, 2) compilation of models describing population-habitat relationships that can lead to species-habitat...
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This proposal adds sagebrush and PJ dependent birds and small mammals to an ongoing collaborative (NDOW, USFWS, NPS) 4-year study entitled Measuring the regional impacts of pinyon and juniper removal on insect, bat, and reptile communities, examining the nontarget ecological impacts of pinyon and juniper (PJ) removal across the Great Basin ecosystem of northern Nevada. Using a BACI design, one study site is the Sheldon National Antelope Refuge.
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This project expands upon an already funded SGI initiative to optimize locations for conifer removal to benefit sage-grouse using the Falkowski conifer map layer (funded through LCMAP grant) and Doherty breeding density map. Adds capability to also optimize for sagebrush dependent songbirds (and potentially pygmy rabbits) while minimizing impacts to PJ obligates such as Pinyon Jays. Will import directly into dashboard decision support tool.
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The proposed research is a collaboration of DOI (USGS, BLM, USFWS), USDA (PNW, USFS), and state agencies. State Heritage and other Nongame Programs have already shared their data with us in preparation for this study. This includes almost all 11 western states (some states did not record reptile occurrences). In exchange for this information, we will be providing to the states: (1) comprehensive species occurrence data with data record corrections; (2) maps of lizard and snake hotspots within each state; and (3) spatial models of species occupancy, including predicted changes in distribution under future climate scenarios. We will work with state (fish and game, state lands) and federal (BLM, USFWS, USFS) partners...
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The proposal seeks to optimize conservation investments through three large-landscape level objectives: 1) Identify multi-species overlap of sagebrush migratory corridors to directly target conservation opportunities using cultivation risk assessment models. 2) Test if hoofed (i.e. pronghorn) and feathered (i.e. grassland birds, waterfowl) species can be managed under the Greater Sage-grouse umbrella. First, model seasonal range selection of pronghorn and then develop a multi-species decision support tool usingoverlaid seasonal range and migratory pathways to target management tools and conservation opportunities. 3) Test fencing effects on multi-species seasonal range and migratory pathways to target priority areas...
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This project will develop a range-wide distribution map for pygmy rabbits through compilation and synthesis of existing presence-absence data and development of a predictive MaxEnt model. The proposed work would evaluate how well sage-grouse habitat conservation also supports landscapes inhabited by pygmy rabbits at both regional and range-wide scales, and this information can be used to inform integrated habitat conservation, restoration, and management that targets both of these sagebrush obligates. It is part of a larger intensive sage-grouse and pygmy rabbit distribution and habitat use study in Idaho supported by BLM, Forest Service and Idaho Department of Fish and Game.
    map background search result map search result map Assessing the future of sagebrush ecosystems: a decision support tool for planning sage grouse conservation Designing Regional Fuel Breaks to Protect Large Remnant Tracts of Greater Sage-Grouse Habitat in Southern ID and OR, Northern and Central NV, and Northwestern UT (TNC) Analysis of Greater Sage-grouse Lek Data: Trends in Peak Male Counts (WEST) Modeling species-habitat relationships, assessing threats, and prioritizing areas of conservation for lizards and snakes in sagebrush ecosystems Identifying and prioritizing mule deer migration corridors across sagebrush ecosystems of the Western U.S. Developing a multi-species decision support tool at a regional scale Building a decision support tool for pinyon-juniper removal: Maximizing benefits to sagebrush- and forest-obligate songbirds Effects of cattle grazing on sagebrush-obligate and sagebrush-dependent birds Pygmy rabbits under the sage-grouse umbrella: Assessment at range-wide and regional scales Evaluating biodiversity of sagebrush-dependent species within sage-grouse habitat: an example from the Wyoming Basin The influence of climatic conditions on reproduction of sagebrush-dependent birds: Implications for climate vulnerability assessments and habitat prioritization efforts Assessing the regional response of avian and small mammal sagebrush communities to pinyon and juniper removal Sagebrush Distribution within the Biome Range Extent, as Derived from Classified Landsat Imagery Sagebrush Biome Invasive Annual Grass Economic Assessment Analysis of Greater Sage-grouse Lek Data: Trends in Peak Male Counts (WEST) Assessing the regional response of avian and small mammal sagebrush communities to pinyon and juniper removal Evaluating biodiversity of sagebrush-dependent species within sage-grouse habitat: an example from the Wyoming Basin Designing Regional Fuel Breaks to Protect Large Remnant Tracts of Greater Sage-Grouse Habitat in Southern ID and OR, Northern and Central NV, and Northwestern UT (TNC) Assessing the future of sagebrush ecosystems: a decision support tool for planning sage grouse conservation Modeling species-habitat relationships, assessing threats, and prioritizing areas of conservation for lizards and snakes in sagebrush ecosystems Identifying and prioritizing mule deer migration corridors across sagebrush ecosystems of the Western U.S. Developing a multi-species decision support tool at a regional scale Building a decision support tool for pinyon-juniper removal: Maximizing benefits to sagebrush- and forest-obligate songbirds Effects of cattle grazing on sagebrush-obligate and sagebrush-dependent birds Pygmy rabbits under the sage-grouse umbrella: Assessment at range-wide and regional scales The influence of climatic conditions on reproduction of sagebrush-dependent birds: Implications for climate vulnerability assessments and habitat prioritization efforts Sagebrush Biome Invasive Annual Grass Economic Assessment Sagebrush Distribution within the Biome Range Extent, as Derived from Classified Landsat Imagery