Table 1. Data differences between Elkhorn Slough and Pleasant Grove study areas.



  Elkhorn Slough Pleasant Grove
Land-cover map High-resolution vector map (<1 ha) derived from aerial photography and developed for the study by the Elkhorn Slough Foundation (ESF and Scharffenberger 2002) Raster 100 m land-cover map obtained from a state-wide GIS of land cover, derived from satellite TM imagery (California Department of Forestry and Fire Protection 2002)
Land-ownership parcels Monterey County and San Benito County parcel data sets, obtained from county Sacramento County, Placer County, Sutter County, Yuba County, and Butte County parcel data sets, obtained from county
Existing conservation lands Elkhorn Slough Foundation and State-wide Public and Conservation Trust Lands data set (California Resources Agency 2007) State-wide Public and Conservation Trust Lands data set (California Resources Agency 2007)
Caltrans road-construction projects State-wide Caltrans data set State-wide Caltrans data set
Conservation objectives Provided by Elkhorn Slough Foundation (ESF and Scharffenberger 2002) Developed for the project using principles from the scientific literature (Beier and Noss 1998, Margules and Pressey 2000, Svancara et al. 2005)
T & E species known locations California Department of Fish and Game (CDFG) database (CDFG 2007) CDFG database (CDFG 2007)
Wildlife corridors not available Huber et al. 2008
Modeled species distributions Did not use Hollander (unpublished data)
Roads Did not use Used for least-cost corridor analysis (California Spatial Information Library 2000)