Application of Geospatial Ecological Tools and Data in the Planning and Programming Phases of Delivering New Highway Capacity: Proof of Concept—US-101, California (2014)

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APPENDIX B Data Sources Below is a list of spatial layers that were used for this study, along with links to more information about the specific layers. Many of the geographic data sets used for this project are available to the public for download. There may be additional metadata for some of the spatial layers, as well. • Conservation Lands Network (http://www.bayarealands.org/gis/) • National Wetlands Inventory (http://www.fws.gov/wetlands/) • San Francisco Estuary Institute Bay Area Aquatic Resources Inventory (BAARI_wetlands_01; http://www.sfei.org/ecoatlas/gis) • U.S. Fish and Wildlife vernal pools (VP_2005; http://www.fws.gov/sacramento/es/Critical-Habitat/Vernal-Pool/es_critical-habitat- maps_vernal-pool.htm) • National Hydrography data set (http://nhd.usgs.gov/) • Important farmland as identified from the Greenbelt Alliance (ImportantSoil_2010; http://www.greenbelt.org/) • California Natural Diversity Database (CNDDB; http://www.dfg.ca.gov/biogeodata/cnddb/) • National Agricultural Inventory Program aerial imagery (http://www.fsa.usda.gov/FSA/apfoapp?area=home&subject=prog&topic=nai) • Vegetation types with a “high” rating in the California Wildlife Habitat Relationships model (California Department of Fish and Wildlife; http://www.dfg.ca.gov/biogeodata/cwhr/wildlife_habitats.asp for terrestrial vertebrate species was selected). • Calflora-listed land cover types for plant species were selected (http://www.calflora.org/). • Various online sources for invertebrate species were used to define appropriate habitat types. • For plants, invertebrates, and unique types identified from the literature, the habitat requirements were cross-walked to California Wildlife Habitat Relationships model types so that their potential locations on the landscape could be identified using the research team’s reference maps. 46