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Data includes satellite derived pre-fire functional group cover of annual and perennial herbaceous, shrubs, bareground and litter across four rangeland megafires in the Western US, as well as field estimated invasive annual grass measurements from the 2nd to 3rd years post-fire. Additional landscape and restoration treatment covariates hypothesized to influence post-fire invasive annual grass cover are included.
Rising temperatures have begun to shift flowering time, but it is unclear whether phenotypic plasticity canaccommodate projected temperature change for this century. Evaluating clines in phenological traits and the extentand variation in plasticity can provide key information on assessing risk of maladaptation and developing strategiesto mitigate climate change. In this study, flower phenology was examined in 52 populations of big sagebrush (Artemi-sia tridentata) growing in three common gardens. Flowering date (anthesis) varied 91 days from late July to lateNovember among gardens. Mixed-effects modeling explained 79% of variation in flowering date, of which 46% couldbe assigned to plasticity and genetic variation...
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Projected current and future distributions of two tree species, Pinus albicaulis (Whitebark pine), Artemisia tridentata (Big Sagebrush), based on empirical bioclimatic models. Many recent changes in tree mortality, tree species distributions, and tree growth rates have been linked to changes in climate. Given that future climatic changes will likely surpass those experienced in the recent past, trees will likely face additional challenges as temperatures continue to rise and precipitation regimes shift. Managing forests in the face of climate change will require a basic understanding of which tree species will be most vulnerable to climate change and in what ways they will be vulnerable. We assessed the relative...
This report provides a strategic approach developed by a Western Association of Fish and Wildlife Agencies interagency working group for conservation of sagebrush ecosystems, Greater sage-grouse, and Gunnison sage-grouse. It uses information on (1) factors that influence sagebrush ecosystem resilience to disturbance and resistance to nonnative invasive annual grasses and (2) distribution and relative abundance of sage-grouse populations to address persistent ecosystem threats, such as invasive annual grasses and wildfire, and land use and development threats, such as oil and gas development and cropland conversion, to develop effective management strategies. A sage-grouse habitat matrix links relative resilience...
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FY2015Persistent ecosystem and anthropogenic disturbances and stressors are threatening sustainability of sagebrush ecosystems in the western US, and managers and policy makers are seeking strategic, holistic approaches for species conservation and ecosystem restoration. Recent research indicates that an understanding of ecosystem resilience to disturbance and resistance to nonnative invasive species can be used to prioritize management activities across large landscapes and determine the most appropriate actions at project scales. An interagency WAFWA working group has linked this understanding with breeding habitat probabilities for Greater and Gunnison sage-grouse, and developed a habitat decision matrix for...
On September 26, Jeanne Chambers, U.S. Forest Service Rocky Mountain Research Station, and Steve Hanser, U.S. Geological Survey, discussed the tools and methods developed as part of the Science Framework for the Conservation and Restoration Strategy of Sec. Order 3336.Co-hosted by the Great Basin, Great Northern, Plains and Prairie Potholes and Southern Rockies Landscape Conservation Cooperatives Department of the Interior Secretary Order 3336 called for the development of a comprehensive, science-based strategy to reduce the threat of large-scale rangeland fire to greater sage-grouse habitat and the sagebrush steppe ecosystem. The four Landscape Conservation Cooperatives (LCCs) of the sagebrush steppe are pleased...
The sagebrush steppe is a patchwork of species and subspecies occupying distinctenvironmental niches across the intermountain regions of western North America. These ecosystems facedegradation from disturbances and exotic weeds. Using sagebrush seed that is matched to its appropriateniche is a critical component to successful restoration, improving habitat for the threatened greater sage-grouse and other species. The need for restoration is greatest in basin habitats composed of two subspecies:diploid basin big sagebrush (A. tridentatasubsp.tridentata) and tetraploid Wyoming big sagebrush (subsp.wyomingensis). In this study we assess seed weights across five subspecies-cytotype groups of bigsagebrush and examine...
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We used an individual-based plant simulation model that represents intra- and inter-specific competition for water availability, which is represented by a process-based soil water balance model. For dominant plant functional types, we quantified changes in biomass and characterized agreement among 52 future climate scenarios. We then used a multivariate matching algorithm to generate fine-scale interpolated surfaces of functional type biomass for our study area.
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The data include ages and locations of presence/absence surveys for sagebrush (Artemesia tridentata) on the Bureau of Land Management Rio Grande del Norte National Monument, New Mexico. We sampled cross-sections of sagebrush along 11 General Land Office section survey lines and conducted growth ring analysis to produce inner-ring dates for 93 sagebrush plants. The presence/absence surveys were conducted along the same section lines as the growth ring samples and were compared to the original surveys from 1881 to assess vegetation change on the landscape.
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FY2016Information on climate adaptation of native plants used in restoration is needed to help guide seed transfer from collection sites to restoration areas across the Great Basin. This project evaluates variation among populations planted together in common gardens of sagebrushes or bluebunch wheatgrass to achieve the goal.The need for seeds for sagebrush ecosystem restoration and rehabilitation projects has led to the transfer of seed across climate zones and hundreds of miles. Development and application of climate-based seed zones are needed to improve seeding success and return-on-investment. USGS, in collaboration with USFS, has accumulated considerable data on climate responses of key native (and cultivar)...
Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: California, California, California, Conservation Planning, Federal resource managers, All tags...
Precipitation amount and seasonal timing determine the duration and distribution of water available for plant and microbial activity in the cold desert sagebrush steppe. In this study, we sought to determine if a sustained shift in the amount and timing of precipitation would affect soil microbial diversity, community composition, and soil carbon (C) storage. Field plots were irrigated (+200 mm) during the dormant or growing-season for 17 years. Microbial community responses were assessed over the course of a year at two depths (15–20 cm, 95–100 cm) by terminal restriction fragment length polymorphism (T-RFLP), along with co-occurring changes in plant cover and edaphic properties. Bacterial richness, Shannon Weaver...
    map background search result map search result map Proportion of Big Sagebrush Land Cover (1-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Big Sagebrush Land Cover (5-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Big Sagebrush Land Cover (18-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Big Sagebrush Land Cover (270-m scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Big Sagebrush Land Cover (540-m scale) in the Wyoming Basins Ecoregional Assessment area Projected current and future distributions for Big Sagebrush and Whitebark Pine tree species the Pacific Northwest Using Resilience and Resistance Concepts to Develop a Strategic Approach for Managing Threats to Sagebrush Ecosystems and Greater Sage-Grouse in the Eastern Portion of the Range Evaluation of Common Gardens to provide Information on Seed Transfer Among Landscapes Divergent climate change effects on widespread dryland plant communities driven by climatic and ecohydrological gradients Sagebrush ages and presence/absence locations in Rio Grande del Norte National Monument, New Mexico Pre-fire satellite derived and field calculated functional cover across Great Basin megafires Sagebrush ages and presence/absence locations in Rio Grande del Norte National Monument, New Mexico Pre-fire satellite derived and field calculated functional cover across Great Basin megafires Projected current and future distributions for Big Sagebrush and Whitebark Pine tree species the Pacific Northwest Evaluation of Common Gardens to provide Information on Seed Transfer Among Landscapes Using Resilience and Resistance Concepts to Develop a Strategic Approach for Managing Threats to Sagebrush Ecosystems and Greater Sage-Grouse in the Eastern Portion of the Range Proportion of Big Sagebrush Land Cover (1-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Big Sagebrush Land Cover (5-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Big Sagebrush Land Cover (18-km scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Big Sagebrush Land Cover (270-m scale) in the Wyoming Basins Ecoregional Assessment area Proportion of Big Sagebrush Land Cover (540-m scale) in the Wyoming Basins Ecoregional Assessment area Divergent climate change effects on widespread dryland plant communities driven by climatic and ecohydrological gradients