Filters: Tags: White-tailed ptarmigan (X)
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PtarmiganOverallRange is an ESRI SDE Feature Class showing Overall Range for White-Tailed Ptarmigan (Lagopus leucurus) in Colorado. Overall Range is defined as the probable range of White-tailed Ptarmigan in Colorado as determined from the following criteria: Areas greater than 10,800 feet in elevation; Colorado GAP vegetation types Mixed Tundra, Meadow Tundra, Prostrate Shrub Tundra, Bare Ground Tundra, Exposed Rock, Shrub Dominated Wetland/Riparian, and Graminoid/Forb Dominated Wetland. This information was derived from field personnel. A variety of data capture techniques were used including drawing on mylar overlays at 1:50,000 scale USGS county mapsheets and implementation of the SmartBoard Interactive Whiteboard...
PtarmiganWinterRange is an ESRI SDE Feature Class showing Winter Range for White-Tailed Ptarmigan (Lagopus leucurus) in Colorado. Winter Range is defined as an area utilized in winter most frequently where drainage basins at or above treeline and stream courses below treeline from 2,591 to 3,810m elevation (8,500 to 12,500ft) where food (willow) and roosting sites (soft snow) are readily available. Winter range is typically defined from late October thru mid-April. The CDOW Special Report Number 38, Wintering Areas and Winter Ecology of White-tailed Ptarmigan in Colorado published in 1976 was used as the based data for development of the ptarmigan winter range dataset. This information was derived from field personnel....
This dataset contains the result of the bioclimatic-envelope modeling of nine bird species -- Northern/Masked Bobwhite Quail (Colinus virginianus), Scaled Quail (Callipepla squamata), Pinyon Jay (Gymnorhinus cyanocephalus), Juniper Titmouse (Baeolophus ridgwayi), Mexican Spotted Owl (Strix occidentalis lucida), Cassin’s Sparrow (Peucaea cassinii), Lesser Prairie-Chicken (Tympanuchus pallidicinctus), Montezuma Quail (Cyrtonyx montezumae), and White-tailed Ptarmigan (Lagopus leucurus) -- in the South Central US using the downscaled data provided by WorldClim. We used five species distribution models (SDM) including Generalized Linear Model, Random Forest, Boosted Regression Tree, Maxent, and Multivariate Adaptive...
Categories: Data;
Types: Citation;
Tags: Baeolophus ridgwayi,
Birds,
Callipepla squamata,
Cassin’s Sparrow,
Colinus virginianus,
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