Filters: Tags: Climate change (X) > partyWithName: LCC Network Data Steward (X) > partyWithName: Great Basin Landscape Conservation Cooperative (X)
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A genecological approach was used to explore genetic variation for survival in Artemisia tridentata (big sagebrush). Artemisia tridentata is a widespread and foundational shrub species in western North America. This species has become extremely fragmented, to the detriment of dependent wildlife, and efforts to restore it are now a land manage-ment priority. Common- garden experiments were established at three sites with seed-lings from 55 source- populations. Populations included each of the three predominant subspecies, and cytotype variations. Survival was monitored for 5 years to assess dif-ferences in survival between gardens and populations. We found evidence of adap-tive genetic variation for survival. Survival...
Categories: Data,
Publication;
Types: Citation;
Tags: Academics & scientific researchers,
California,
Completed,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
Federal resource managers,
This presentation aired as part of the Great Basin LCC webinar series on October 11, 2017. Speakers included Erica Fleishman, U.C. Davis, and Jimi Gragg, Utah Division of Wildlife Resources.Description: As the distribution and abundance of non-native cheatgrass (Bromus tectorum) in the Great Basin has increased, the extent and frequency of fire in the region has increased by as much as 200%. These changes in fire regimes are associated with loss of the sagebrush (Artemisia tridentata) and native grasses and forbs in which many native animals, including Greater Sage-grouse (Centrocercus urophasianus), breed and feed. Managers have suggested changes in fire regimes, fuels treatments and post-fire restoration with...
We examined patterns of genetic variation and diversity of extant pygmy rabbit (Brachylagus idahoensis) populations across the species’ current range in Nevada and California. Our aims were to determine population genetic structure and levels of diversity across the southern portion of the species’ range. We genotyped 13 microsatellite loci from 194 fecal samples collected across 14 localities. Our Bayesian cluster analyses found 2 genetically distinct groups: 1 in the Mono Basin of California and the other encompassing all remaining Nevada Great Basin populations. Considering only the Nevada Great Basin group, we found 4 minimally divergent groups that overlap spatially with many individuals maintaining composite...
Categories: Data,
Publication;
Types: Citation;
Tags: Academics & scientific researchers,
Completed,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
Federal resource managers,
Great Basin,
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...
Categories: Data,
Publication;
Types: Citation;
Tags: Academics & scientific researchers,
Artemisia tridentata,
California,
Completed,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
A number of modeling approaches have been developed to predict the impacts of climate change on species distributions, performance and abundance. The stronger the agreement from models that represent different processes and are based on distinct and independent sources of information, the greater the confidence we can have in their predictions. Evaluating the level of confidence is particularly important when predictions are used to guide conservation or restoration decisions. We used a multi-model approach to predict climate change impacts on big sagebrush (Artemisia tridentata), the dominant plant species on roughly 43 million hectares in the western United States and a key resource for many endemic wildlife species....
Categories: Data,
Publication;
Types: Citation;
Tags: Academics & scientific researchers,
Artemisia,
Completed,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
Federal resource managers,
Understanding how annual climate variation affects population growth rates across a species’ range may help us anticipate the effects of climate change on species distribution and abundance. We predict that populations in warmer or wetter parts of a species’ range should respond negatively to periods of above average temperature or precipitation, respectively, whereas populations in colder or drier areas should respond positively to periods of above average temperature or precipitation. To test this, we estimated the population sensitivity of a common shrub species, big sagebrush (Artemisia tridentata), to annual climate variation across its range. Our analysis includes 8175 observations of year-to-year change in...
Categories: Data,
Publication;
Types: Citation;
Tags: Academics & scientific researchers,
Artemisia,
Completed,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
Federal resource managers,
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....
Categories: Data,
Publication;
Types: Citation;
Tags: California,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
Great Basin,
Idaho,
LCC Network Science Catalog,
There is widespread evidence that multiple drivers of global change, such as habitat degradation, invasive species, and climate change, are influencing wildlife. Understanding how these drivers interact with and affect species may be difficult because outcomes depend on the magnitude and duration of environmental change and the life history of the organism. In addition, various environmental drivers may be evaluated and managed at different spatial scales. We used a historical dataset from 1991 to 1994 and current information from 2010 to 2012 to examine whether occupancy patterns of wintering raptors were consistent with regional changes in distribution or habitat conditions within a local management unit, the...
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...
Categories: Data;
Tags: Colorado,
Completed,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
Federal resource managers,
GRSG,
Recent 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, and by providing some guidelines for the placement of new or augmented stations.The report shows how observation gaps can be discovered utilizing basic geospatial data. Three management applications is used: greater sage-grouse habitat, wildfire and grazing allotments....
Categories: Data;
Tags: Academics & scientific researchers,
California,
Climate change,
Completed,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
Big sagebrush (Artemisia tridentata) is one of the most widespread and abundant plant species in the intermountain regions of western North America. This species occupies an extremely wide ecological niche ranging from the semi-arid basins to the subalpine. Within this large niche, three widespread subspecies are recognized. Montane ecoregions are occupied by subspecies vaseyana, while subspecies wyomingensis and tridentata occupy basin ecoregions. In cases of wide-ranging species with multiple subspecies, it can be more practical from the scientific and management perspective to assess the climate profiles at the subspecies level. We focus bioclimatic model efforts on subspecies wyomingensis, which is the most...
Categories: Data,
Publication;
Types: Citation;
Tags: Academics & scientific researchers,
California,
Completed,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
Federal resource managers,
This project explored how two scenario planning approaches might be used effectively with existing management planning processes and data sources and how to begin prioritizing adaptation strategies. The two approaches used in this project are Adaptation for Conservation Targets (ACT) and Strategic Scenario Planning (SSP). This report provides an overview of the project webinars and two workshops, our analysis of the strengths and limitations of the scenario planning approaches used, and suggestions for using these methods to prioritize adaptation actions.
Categories: Data;
Tags: Completed,
Conservation NGOs,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
Federal resource managers,
Great Basin,
Natural-resource managers and other conservation practitioners are under unprecedented pressure to categorize and quantify the vulnerability of natural systems based on assessment of the exposure, sensitivity, and adaptive capacity of species to climate change. Despite the urgent need for these assessments, neither the theoretical basis of adaptive capacity nor the practical issues underlying its quantification has been articulated in a manner that is directly applicable to natural-resource management. Both are critical for researchers, managers, and other conservation practitioners to develop reliable strategies for assessing adaptive capacity. Drawing from principles of classical and contemporary research and...
Categories: Data,
Publication;
Types: Citation;
Tags: Academics & scientific researchers,
California,
Completed,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
Federal resource managers,
This publication identifies areas where big sagebrush populations are most and least vulnerable to climate change and demonstrates where continued investment in sagebrush conservation and restoration could have the most impact.
Categories: Data,
Publication;
Types: Citation;
Tags: Academics & scientific researchers,
Artemisia,
Completed,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
Federal resource managers,
This research project documented the Native American cultural traditions in the Duckwater Shoshone and the Paiute tribes’ responses to climate change in the Great Basin region. Aspects of tribal culture often include fish, wildlife, or plants as central images or main symbolic figures. Because climate change affects the presence, abundance and patterns of distribution of animals and plants, it is important to analyze behaviors connected to those resources. This project carried out research pertaining to the effects of climate on aspects of the environment and resources relevant to these two Great Basin tribes, leading to insights regarding possible responses of tribal culture to focal animals and plants that, in...
Categories: Data;
Tags: Academics & scientific researchers,
Completed,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
Goshute Tribe,
Great Basin,
On November 4, 2016, Dr. Peter Adler, Utah State University, discussed how sagebrush sensitivity to climate change varies across the region and the strengths and weaknesses of various climate modeling approaches.Healthy big sagebrush habitat is essential for the persistence of many high value conservation species across the western US. To gain confidence in predictions of climate change impacts on existing populations of big sagebrush, a research team from Utah State University compared output from four modeling approaches, each based on very different data and assumptions. These models largely agree that rising temperatures will decrease sagebrush cover and biomass in the warmest portions of the region, but increase...
The Science Framework is intended to link the Department of the Interior’s Integrated Rangeland Fire Management Strategy with long-term strategic conservation actions in the sagebrush biome. The Science Framework provides a multiscale approach for prioritizing areas for management and determining effective management strategies within the sagebrush biome. The emphasis is on sagebrush (Artemisia spp.) ecosystems and Greater sage-grouse (Centrocercus urophasianus). The approach provided in the Science Framework links sagebrush ecosystem resilience to disturbance and resistance to nonnative, invasive plant species to species habitat information based on the distribution and abundance of focal species. A geospatial...
Categories: Data;
Tags: California,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
Great Basin,
Idaho,
LCC Network Science Catalog,
Worldwide, many species are responding to ongoing climate change with shifts in distribution, abundance, phenology, or behavior. Consequently, natural-resource managers face increasingly urgent conservation questions related to biodiversity loss, expansion of invasive species, and deteriorating ecosystem services. We argue that our ability to address these questions is hampered by the lack of explicit consideration of species’ adaptive capacity (AC). AC is the ability of a species or population to cope with climatic changes and is characterized by three fundamental components: phenotypic plasticity, dispersal ability, and genetic diversity. However, few studies simultaneously address all elements; often, AC is confused...
Categories: Data,
Publication;
Types: Citation;
Tags: Academics & scientific researchers,
California,
Climate adaptation,
Completed,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
On July 21, 2016, Dr. Samantha Chisholm Hatfield of Oregon State University presented findings from her research on Native cultural responses to climate change in the Great Basin.Traditional Ecological Knowledge (TEK) is based on observations of environmental surroundings over long periods of time. It is an integral aspect of Indigenous cultural knowledge, which is holistic in nature. Because climate change affects the presence, abundance and patterns of distribution of animals and plants, it is important to analyze behaviors and hear tribes’ TEK perspectives connected to those resources. In this project, researchers documented the Duckwater Shoshone and the Paiute tribes’ cultural traditions and responses to climate...
Categories: Data;
Tags: Academics & scientific researchers,
Completed,
EARTH SCIENCE > LAND SURFACE > LANDSCAPE,
Goshute Tribe,
Great Basin,
Understanding local and geographic factors influencing species distributions is a prerequisite for conservation planning. Our objective in this study was to model local and geographic variability in elevations occupied by native and nonnative trout in the northwestern Great Basin, USA. To this end, we analyzed a large existing data set of trout presence (5,156 observations) to evaluate two fundamental factors influencing occupied elevations: climate-related gradients in geography and local constraints imposed by topography. We applied quantile regression to model upstream and downstream distribution elevation limits for each trout species commonly found in the region (two native and two nonnative species). With...
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