SDE Raster Dataset
least-cost corridor, patch size, biota, habitat suitability, California, Sonoran Desert, patch configuration, location, land facet, Mohave Desert, environment
The primary objective of this effort is to identify lands essential to maintain or restore functional connectivity among wildlands for all species or ecological processes of interest in the California deserts and as a vital adaptation strategy to conserve biodiversity during climate change.
This data represents potential cores and patches of breeding habitat Desert tortoise (Gopherus agassizii). To delineate potential cores and patches for desert tortoise we took a slightly different approach using the habitat model developed by Nussear et al. (2009) as the primary model input using scores of .6 and above from the Maxent Model. The other primary input to the analysis is home range or territory size. Thus, this analysis was only conducted if this information was available for the focal species. Potential breeding habitat was classified into two size classes. A potential core was defined as a continuous area of suitable habitat large enough to sustain at least 50 individuals. Potential cores are probably capable of supporting the species for several generations (although with erosion of genetic material if isolated). A breeding patch was defined as an area of suitable habitat large enough to support successful reproduction by a pair of individuals (perhaps more if home ranges overlap greatly), but smaller than a potential core area. Patches are useful to the species if the patches are linked via dispersal to other patches and core areas. For more information about the creation and utilization of this data, please see the report "A Linkage Network for the California Deserts" at http://www.scwildlands.org/reports/Default.aspx
Produced for the Bureau of Land Management and the Wildlands Conservancy. Produced by Science and Collaboration for Connected Wildlands, Fair Oaks, CA www.scwildlands.org and Northern Arizona University, Flagstaff, Arizona http://oak.ucc.nau.edu/pb1/ .
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|Maximum (zoomed in)||1:5,000|
|Minimum (zoomed out)||1:150,000,000|