Potential GOEA Nesting Areas (High ruggedness), DRECP

Sep 5, 2013 (Last modified Dec 5, 2013)
Description:
Areas with high ruggedness (Vector Ruggedness Measure > 0.01; neighborhood size = 270m) used in creating the DRECP golden eagle expert model. 

The Vector Ruggedness Measure (VRM) was originally derived at 30m resolution, using the 30m NED, and run with a 9x9 (270m) neighborhood size. The resulting VRM dataset was projected to CA Albers Equal Area NAD83 and resampled to 270m resolution to match the DRECP statistical species distribution models. 

VRM was adapted from a method first proposed by Hobson (1972). See Sappington et al. 2007, for further details. 

References: 
Hobson, R.D. 1972. Surface roughness in topography: quantitative approach. Pages 221–245 in R. J. Chorley, editor. Spatial analysis in geomorphology. Harper and Row, New York, New York, USA. Sappington, J.M., K.M. Longshore, and D.B. Thomson. 2007. Quantifiying Landscape Ruggedness for Animal Habitat Anaysis: A case Study Using Bighorn Sheep in the Mojave Desert. Journal of Wildlife Management. 71(5): 1419 -1426.
Data Provided By:
The Conservation Biology Institute
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not specified
Spatial Resolution:
270 m
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Conservation Biology Institute
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not specified
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Creative Commons LicenseThis work is licensed under a Creative Commons Attribution 3.0 License.
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Conservation Biology Institute

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