Cameron L Aldridge

Green-tailed towhee probability of occurrence in the Wyoming Basins Ecoregional Assessment area

Probability map of green-tailed towhee occurrence in relation to vegetation, abiotic, and anthropogenic features. These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release.

Categories: pre-SM502.8; Tags: Colorado, Ecology, Great Basin, Idaho, Land Use Change, All tags... Land Use Change, Montana, Probability of occurrence, USGS Science Data Catalog (SDC), Utah, Wildlife Biology, Wildlife Biology, Wyoming, biota, environment, geoscientificInformation, geospatial datasets, green-tailed towhee, modeling, scientific interpretation, shrubland ecosystems, Fewer tags

Gunnison sage-grouse habitat suitability surface for Crawford satellite population (summer, landscape): U.S. Fish and Wildlife Service critical habitat extent (southwestern Colorado)

The Gunnison sage-grouse (Centrocercus minimus) habitat suitability surface for Crawford satellite population represented here reflects summer season at a landscape scale context (window extents [radius] of 1 km, 3 km, and 6.4 km). Habitat suitability estimated for U.S. Fish and Wildlife Service critical habitat extent (southwestern Colorado). We developed habitat selection models for Gunnison sage-grouse (Centrocercus minimus), a threatened species under the U.S. Endangered Species Act. We followed a management-centric modeling approach that sought to balance the need to evaluate the consistency of key habitat conditions and improvement actions across multiple, distinct populations, while allowing context-specific...

Tags: CO, Colorado, Conservation, Crawford satellite population, Gunnison sage-grouse, All tags... Habitat selection, Landscape scale, Logistic regression, Resource selection function, Southwestern Colorado, Summer season, United States, biota, environment, Fewer tags

Greater sage-grouse habitat suitability 15-years post simulated fire event and targeted sagebrush transplants (2015-2030)

Here, we present greater sage-grouse nesting habitat suitability 15-years after simulating a fire and planting of sagebrush. The planting design used here reflects the multi-year (my) habitat restoration effort where we used several moderate (sm) patches with high density (hd) planting of sagebrush. The planting was targeted for nesting habitat, and the data reflects simulated habitat conditions in 2030. To assess the degree to which transplanting sagebrush (Artemisia spp.) could quickly restore former sage-grouse habitat and the strategies by which greater sage-grouse (Centrocercus urophasianus; hereafter, sage-grouse) habitat restoration is best accomplished, we linked vegetation transitions with habitat selection...

Tags: Fire, Greater sage-grouse, Habitat selection, NV, Nevada, All tags... Planting design, Sagebrush, State-and-transition model, Transplant, Tuscarora, United States, Vegetation restoration, Vegetation transition, biota, environment, Fewer tags

Sample collection information, single nucleotide polymorphism, and microsatellite data for white-tailed ptarmigan across the species range generated in the Molecular Ecology Lab during 2016

This data release comprises a dataset that contains sample collection information and microsatellite genotypes, and another dataset that contains single nucleotide polymorphism (SNP) genotypes with sample collection information for populations of white-tailed ptarmigan across the species' range. There is also an additional file (accession numbers.xlsx) linking samples to accession numbers in Genbank. This data was collected in order to address the following: The delineation of intraspecific units that are evolutionarily and demographically distinct is an important step in the development of species-specific management plans. Neutral genetic variation has served as the primary data source for delineating units for...

Categories: Data; Tags: Alaska, Alberta, British Columbia, Colorado, Microsatellites, All tags... Montana, Mt. Evans, New Mexico, Rocky Mountain National Park, USGS Science Data Catalog (SDC), Utah, Vancouver, Washington, Yukon Territory, biological population management, biota, genetic diversity, Fewer tags

Maps of habitat suitability improvement potential for the Pinon Mesa Gunnison Sage-grouse (Centrocercus minimus) satellite population in Southwestern Colorado

Habitat restoration efforts to conserve wildlife species are often conducted along a range of local site conditions, with limited information available to gauge relative outcomes for habitat suitability among sites and identify those that may lead to the greatest returns on restoration investment. We leveraged existing resource selection function models to generate heatmaps of spatially varying habitat suitability improvement potential for the Gunnison Sage-grouse (Centrocercus minimus) based on a suite of habitat restoration actions deployed across crucial habitats within six remaining satellite populations. We first simulated expected change in model covariates (habitat features) from a suite of restoration actions...

Tags: Centrocercus minimus, Colorado, Gunnison Sage-grouse, Gunnison Sage-grouse range, Sagebrush biome, All tags... cheatgrass, mesic improvements, pinyon-juniper, sagebrush, Fewer tags