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The delineation of priority areas in western North America for managing Greater Sage-Grouse (Centrocercus urophasianus) represents a broad-scale experiment in conservation biology. The strategy of limiting spatial disturbance and focusing conservation actions within delineated areas may benefit the greatest proportion of Greater Sage-Grouse. However, land use under normal restrictions outside priority areas potentially limits dispersal and gene flow, which can isolate priority areas and lead to spatially disjunct populations. We used graph theory, representing priority areas as spatially distributed nodes interconnected by movement corridors, to understand the capacity of priority areas to function as connected...
Types: Citation;
Tags: Arizona,
California,
Colorado,
Idaho,
Montana, All tags...
Nebraska,
Nevada,
New Mexico,
North Dakota,
Oregon,
South Dakota,
Utah,
Washington,
Wyoming,
biota,
environment,
geoscientificInformation,
greater sage-grouse,
habitat,
habitat connectivity,
habitat linkages,
historic range, Fewer tags
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Proposed work will monitor for five years vegetation, fuels, wildlife, insects, and weather at 10 SageSTEP sites, all of which have been treated to reduce either juniper encroachment (woodland sites) or cheatgrass invasion (sagebrush/cheatgrass sites). Each of the six woodland sites contains an untreated control plot, a ‘cut’ plot where all trees were felled and left on site, and a prescribed burn plot, where fire was used to kill all trees – management objective of the treatments was to reduce tree dominance. Each of the four sagebrush/cheatgrass sites contains an untreated control plot, a mowed plot, a prescribed burn plot, and an herbicide plot, where each treatment was designed to remove 50% of the sagebrush...
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This Restoration Handbook consists of three parts with the same main title, “Restoration Handbook for Sagebrush Steppe Ecosystems with Emphasis on Greater Sage-Grouse Habitat.” These parts provide an approach for effective implementation of restoration practices in sagebrush steppe ecosystems. The current document summarizes the literature and synthesizes core concepts that are necessary for a practitioner/manager to apply tools to help make landscape and site-specific decisions. Landscape-level decision tools are designed to help managers prioritize resource allocation among multiple potential restoration projects for achieving the greatest benefit at the landscape level. We are examining how restoration of sagebrush...
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We partitioned a Mahalanobis D2 model of sage-grouse habitat use into separate additive components each representing independent combinations of species-habitat relationships to identify and map range-wide ecological minimums for sage-grouse. We assumed the states delineations of priority areas capture higher quality habitat and larger numbers of sage-grouse populations across our study area. We randomly selected 1669 points from the priority areas and corresponding variables GIS datasets to calibrate models. We estimated distributions of our variables from 1000 iterative samples created by bootstrapping the calibration data. To better incorporate conditions in both large and small priority areas, we restricted...
Types: Citation;
Tags: Arizona,
CRS,
California,
Colorado,
Ecological Minimums, All tags...
Greater sage-grouse,
Habitat,
Habitat Similarity Index,
Habitat connectivity,
Historic Range for greater sage-grouse,
Idaho,
Montana,
Nebraska,
Nevada,
New Mexico,
North Dakota,
Oregon,
SageDAT-data,
ScienceFramework,
South Dakota,
Utah,
Washington,
Wyoming,
biota,
environment,
geoscientificInformation, Fewer tags
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