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This metadata references the polygonal ARC/INFO GIS cover showing the current and historic distribution of potential habitat, or range, of the Greater Sage-grouse (Centrocercus urophasianus) and Gunnison Sage-grouse (Centrocercus minimus) in Western North America. This data was initially researched and compiled by Dr. Michael A. Schroeder, research biologist for the Washington State Department of Fish and Wildlife. The initial draft of current and historic range data was mapped and submitted to state, federal, or provincial natural resource agencies and other experts for review, comment, and editing. The final product represents the best available science and expert review available at the time of compilation. ...
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This metadata references the polygonal ARC/INFO GIS cover showing the current and historic distribution of potential habitat, or range, of the Greater Sage-grouse (Centrocercus urophasianus) and Gunnison Sage-grouse (Centrocercus minimus) in Western North America. This data was initially researched and compiled by Dr. Michael A. Schroeder, research biologist for the Washington State Department of Fish and Wildlife. The initial draft of current and historic range data was mapped and submitted to state, federal, or provincial natural resource agencies and other experts for review, comment, and editing. The final product represents the best available science and expert review available at the time of compilation. ...
The distribution and abundance of the greater sage-grouse (Centrocercus urophasianus) have declined dramatically, and as a result the species has become the focus of conservation efforts. We conducted a range-wide genetic survey of the species which included 46 populations and over 1000 individuals using both mitochondrial sequence data and data from seven nuclear microsatellites. Nested clade and STRUCTURE analyses revealed that, in general, the greater sage-grouse populations follow an isolation-by-distance model of restricted gene flow. This suggests that movements of the greater sage-grouse are typically among neighbouring populations and not across the species, range. This may have important implications if...
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This metadata references the polygonal ARC/INFO GIS cover showing the current and historic distribution of potential habitat, or range, of the Greater Sage-grouse (Centrocercus urophasianus) and Gunnison Sage-grouse (Centrocercus minimus) in Western North America. This data was initially researched and compiled by Dr. Michael A. Schroeder, research biologist for the Washington State Department of Fish and Wildlife. The initial draft of current and historic range data was mapped and submitted to state, federal, or provincial natural resource agencies and other experts for review, comment, and editing. The final product represents the best available science and expert review available at the time of compilation.Definition...
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This map depicts regions within the range of the Greater Sage-grouse that are non-Sage-grouse habitat. This information was complied using coverage of sagebrush for the western United States and a coverage of grassland habitats within 5km of an active Sage-grouse lek. This map has a 540m resolution.
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This metadata references the polygonal ARC/INFO GIS cover showing the current and historic distribution of potential habitat, or range, of the Greater Sage-grouse (Centrocercus urophasianus) and Gunnison Sage-grouse (Centrocercus minimus) in Western North America. This data was initially researched and compiled by Dr. Michael A. Schroeder, research biologist for the Washington State Department of Fish and Wildlife. The initial draft of current and historic range data was mapped and submitted to state, federal, or provincial natural resource agencies and other experts for review, comment, and editing. The final product represents the best available science and expert review available at the time of compilation.Definition...
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This map depicts the proportion of non-Sage-grouse habitat with 18km of each pixel. The map was produced using a moving window analysis on the Distribution of Non-Sage Grouse Habitat in the Conservation Assessment Area with a search radius of 18km. The product of the moving window was the mean pixel value within the window. This map has a 540m resolution.
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This map depicts the proportion of non-Sage-grouse habitat with 54km of each pixel. The map was produced using a moving window analysis on the Distribution of Non-Sage Grouse Habitat in the Conservation Assessment Area with a search radius of 54km. The product of the moving window was the mean pixel value within the window. This map has a 540m resolution.
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This map depicts regions within the range of the Greater Sage-grouse that are non-Sage-grouse habitat. This information was complied using coverage of sagebrush for the western United States and a coverage of grassland habitats within 5km of an active Sage-grouse lek. This map has a 540m resolution.
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This metadata references the polygonal ARC/INFO GIS cover showing the current and historic distribution of potential habitat, or range, of the Greater Sage-grouse (Centrocercus urophasianus) and Gunnison Sage-grouse (Centrocercus minimus) in Western North America. This data was initially researched and compiled by Dr. Michael A. Schroeder, research biologist for the Washington State Department of Fish and Wildlife. The initial draft of current and historic range data was mapped and submitted to state, federal, or provincial natural resource agencies and other experts for review, comment, and editing. The final product represents the best available science and expert review available at the time of compilation.Definition...
This metadata references the polygonal ARC/INFO GIS cover showing the current and historic distribution of potential habitat, or range, of the Greater Sage-grouse (Centrocercus urophasianus) and Gunnison Sage-grouse (Centrocercus minimus) in Western North America. This data was initially researched and compiled by Dr. Michael A. Schroeder, research biologist for the Washington State Department of Fish and Wildlife. The initial draft of current and historic range data was mapped and submitted to state, federal, or provincial natural resource agencies and other experts for review, comment, and editing. The final product represents the best available science and expert review available at the time of compilation. Definition...
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This map depicts the proportion of non-Sage-grouse habitat with 5km of each pixel. The map was produced using a moving window analysis on the Distribution of Non-Sage Grouse Habitat in the Conservation Assessment Area with a search radius of 5km. The product of the moving window was the mean pixel value within the window. This map has a 540m resolution.
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Populations with small effective sizes are at risk for inbreeding depression and loss of adaptive potential. Variance in reproductive success is one of several factors reducing effective population size (Ne) below the actual population size (N). Here, we investigate the effects of polygynous (skewed) mating and variation in female breeding success on the effective size of a small population of the Gunnison sage-grouse (Centrocercus minimus), a ground nesting bird with a lek mating system. During a two-year field study, we recorded attendance of marked birds at leks, male mating success, the reproductive success of radio-tagged females, and annual survival. We developed simulations to estimate the distribution of...


    map background search result map search result map Polygyny and female breeding failure reduce effective population size in the lekking Gunnison sage-grouse Historic GSG Range 6States_sg_subpopulations_sagemap Current Distribution of the Sage-grouse in North America Historic Distribution of the Sage-grouse in North America Distribution of Non-Sage-grouse Habitat in the Conservation Assessment Area Distribution of Non-Sage-grouse Habitat in the Conservation Assessment Area Proportion of Non-Sage-grouse Habitat Within an 5-km Radius Proportion of Non-Sage-grouse Habitat Within an 18-km Radius Distribution of the Sage-grouse in North America Distribution of the Sage-grouse in North America Proportion of Non-Sage-grouse Habitat Within an 54-km Radius Polygyny and female breeding failure reduce effective population size in the lekking Gunnison sage-grouse 6States_sg_subpopulations_sagemap Current Distribution of the Sage-grouse in North America Historic GSG Range Historic Distribution of the Sage-grouse in North America Distribution of the Sage-grouse in North America Proportion of Non-Sage-grouse Habitat Within an 5-km Radius Proportion of Non-Sage-grouse Habitat Within an 18-km Radius Proportion of Non-Sage-grouse Habitat Within an 54-km Radius Distribution of the Sage-grouse in North America Distribution of Non-Sage-grouse Habitat in the Conservation Assessment Area Distribution of Non-Sage-grouse Habitat in the Conservation Assessment Area