Science and Collaboration for Connected Wildlands 20120215 raster digital data http://bios.dfg.ca.gov/ ftp://ftp.dfg.ca.gov/BDB/GIS/BIOS/Public_Datasets/800-899/ds847.zip This dataset represents potential cores and patches of breeding habitat for Desert spiny lizard (Sceloperus magister). Potential breeding area is defined as a cluster of pixels that are good enough (habitat suitability score above 50) and big enough to support breeding by the focal species. 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 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. Core areas for Desert spiny lizard (Sceloperus magister) were defined as greater than or equal to 25 ha. Patch size was classified as greater than or equal to 2 ha but less than 25 ha. Complete None planned -119.079388 -113.898923 37.405904 32.527297 None least-cost corridor patch size habitat suitability patch configuration land facet ISO 19115 Topic Category biota location environment None California Sonoran Desert Mohave Desert None None Science & Collaboration for Connected Wildlands Kristeen Penrod Conservation Director (209)285-1916 kristeen@scwildlands 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/. Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.1.4959 Raster Grid Cell NAD 1983 California Teale Albers 34.0 40.5 -120.0 0.0 0.0 -4000000.0 coordinate pair 0.000000003754707655900803 0.000000003754707655900803 meter D North American 1983 GRS 1980 6378137.0 298.257222101 VAT_ds847 Desert Spiny Lizard Connectivity Modeling for the California Desert Linkage Network [ds847] Habitat The potential breeding area, defined as a cluster of pixels that are good enough and big enough (i.e., larger than minimum sizes specified by the species expert) to support breeding by the focal species. core A contiguous 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). patch An area of suitable habitat large enough to support successful reproduction by a pair or 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. < patch (less than patch) Areas of suitable habitat that are smaller than a breeding patch. Value The habitat suitability score, which is calculated as a function of pixel attributes such as land cover, road density, topographic position, and elevation. Count OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. 20160328 Science & Collaboration for Connected Wildlands Kristeen Penrod Conservation Director (209)285-1916 kristeen@scwildlands FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time