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- Ptarmigan Winter Range 2010
Ptarmigan Winter Range 2010
Feb 1, 2011
(Last modified Oct 5, 2011)
Uploaded by
Conservation Biology Institute
- Description:
- 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. 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 using stand-up, real-time digitizing at various scales (Cowardin, M., M. Flenner. March 2003. Maximizing Mapping Resources. GeoWorld 16(3):32-35).Dataset was acquired from a third party distributor who obtained it from CDOW in January 2011. The authoritative data source is available on ArcGIS.com (http://www.arcgis.com/home/item.html?id=6cbc3ffbc0e947bb8e52d66214bb0120) and will be updated from that location.
- Data Provided By:
- COLORADO DIVISION OF WILDLIFE
- Content date:
- not specified
- Contact Organization:
- COLORADO DIVISION OF WILDLIFE
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- Use Constraints:
- This wildlife distribution map is a product and property of Colorado Division of Wildlife, a division of the Colorado Department of Natural Resources. Care should be taken in interpreting these data. Written documents may accompany this map and should be referenced. The information portrayed on these maps should not replace field studies necessary for more localized planning efforts. The data are gathered at a variety of scales; discrepancies may become apparent at larger scales. The areas portrayed here are graphic representations of phenomena that are difficult to reduce to two dimensions. Animal distributions are fluid; animal populations and their habitats are dynamic.
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About the Uploader
Conservation Biology Institute
We provide advanced conservation science, technology, and planning to empower our partners in solving the world’s critical ecological challenges
