California Department of Fish and Game (DFW), Aerial Information Systems (AIS), California Native Plant Society (CNPS) 20050731 unknown vector digital data Redlands, CA AIS https://www.wildlife.ca.gov/Data/BIOS http://ftp.wildlife.ca.gov/BDB/GIS/BIOS/Public_Datasets/100_199/ds170.zip The California Department of Fish and Game (CDFG) contracted with the California Native Plant Society (CNPS) and Aerial Information Systems (AIS) to produce an alliance-level, vegetation classification and map of Western Riverside County, California. The resulting classification and map products will be used to help establish a monitoring basis for the vegetation and habitats of the Western Riverside County Multi-Species Habitat Conservation Plan (MSHCP). The plan aims to conserve over 500,000 acres of land out of the 1.26 million acre total. This area is the largest MSHCP ever attempted and is an integral piece of the network of Southern California Habitat Conservation Plans and Natural Community Conservation Planning (Dudek 2001, Dudek 2003). Riverside County is one of the fastest growing counties in California, as well as one of the most biodiverse counties in the United States. A wide array of habitats are found within the non-developed lands in Western Riverside County, including coastal sage scrub, vernal pools, montane coniferous forest, chaparral, foothill woodland, annual grassland, and desert. In the CNPS contract, vegetation resources were assessed quantitatively through field surveys, data analysis, and final vegetation classification. Field survey data were analyzed statistically to come up with a floristically-based classification. Each vegetation type sampled was classified according to the National Vegetation Classification System to the alliance level (and association level if possible). The vegetation alliances were described floristically and environmentally in standard descriptions, and a final key was produced to differentiate among 101 alliances, 169 associations, and 3 unique stands (for final report, see https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=18245). In a parallel but separate effort by AIS (as reported in this dataset), vegetation mapping was undertaken through interpretation of ortho-rectified, aerial photographs for vegetation signatures in color infrared (CIR) and in natural color (imagery flown in winter or summer). A detailed map has been produced through the following process: 1) hand-delineation of polygons on base CIR imagery, 2) digitization of polygons, and 3) attribution of the vegetation types and overstory cover values. The map was created in a Geographic Information System (GIS) digital format, as was the database of field surveys. The dataset was produced through an on-screen photo interpretation procedure using three sets of geo-referenced imagery. The data is classified to a floristic classification derived through clustering analysis procedures based on species dominance and significance. The classification is based on the MCV (Manual of California Vegetation) in which 103 alliances and 169 floristic associations have been defined for the study area. Over 3300 full plot and reconnaissance points have been used in helping classify the mapped polygons. Mapped polygons are classified to either an association, alliance or mapping unit which may be an aggregation of associations or alliances. The dataset encompasses the western portions of Riverside County from the county boundary on the west eastward to the summit of the San Jacinto Mountains and Anza valley. To have consistent representation of the different vegetation types in the MSHCP and to develop the best possible models for species distribution and abundance by addressing the needs of species' habitat at the appropriate resolutions. Access the CNPS Vegetation and Mapping Classification for Western Riverside County and the final report of the Vegetation Alliances of Western Riverside County at: https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=18245. REFERENCE: J. O. Sawyer and T. Keeler-Wolf. 1995 "A Manual of California Vegetation", pub: California Native Plant Society, pp 471. Converted to California Teale Albers NAD83 by the California Department of Fish and Game. MODIFICATIONS: 03/2015 – An update to the 2005 map was completed. The map update covers 1,014,364 acres of the original 1.2 million acres mapped in 2005 and was produced using the 2012 NAIP imagery as the base. Areas which were include in the 2012 map update were removed from this version of the 2005 map. 03/2015 – An update to the 2005 map was completed. The map update covers 1,014,364 acres of the original 1.2 million acres mapped in 2005 and was produced using the 2012 NAIP imagery as the base. Areas which were included in the 2012 map update were removed from this version of the 2005 map. 4/2006 - Two versions of the shapefile existed: one from Aerial Information Systems with corrected values for the DENSITY, EXOTICS, and CLEARED attribute fields; and one from the California Native Plant Society with corrected values for the PI, COM_NAME, SCI_NAME, WHR_CODE, WHR_NAME, and MSHCP_COLL attribute fields. The corrected attribute values for these two versions were merged into one shapefile based on the unique ID attribute field, WRIVVEG_. In the process, it was discovered that the supposedly unique ID attribute field, WRIVVEG_ID, was not unique and was redundant, so it was dropped. Post-merge attribute domain checking revealed that non-standard values were being used for WHR_CODE, WHR_NAME, and MSHCP_COLL. In consultation with CNPS, these values were corrected. Minor errors were also discovered in the metadata; these were also corrected. 20000101 20010101 digital ortho-photography Complete None planned -117.686553 -116.545330 34.054433 33.413924 ISO 19115 Topic Category vegetation environment biota ESRI Geography Network Thesaurus MCV Vegetation Map MSHCP Vegetation Map Western Riverside County Vegetation Map None Western States Riverside County California No access constraints. It is the user's responsibility to understand the specific characteristics and limitations of each dataset. The California Department of Fish and Game expressly disclaims responsibility for damages or liability that may arise from use of this data. DFW appreciates learning how our datasets are being used so that we can leverage support for classifying and mapping new areas and let users know of any updates. Please contact Diana Hickson by email or by phone at 916-327-5956.License: This work is licensed under Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). Using the citation standards recommended for BIOS datasets (https://www.wildlife.ca.gov/Data/BIOS/Citing-BIOS) satisfies the attribution requirements of this license.Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data. California Department of Fish and Wildlife Todd Keeler-Wolf Senior Vegetation Ecologist, Vegetation Classification and Mapping Program mailing

1416 9th Street, 4th Floor

Sacramento CA 95814 US 916 324 6857 Todd.Keeler-Wolf@Wildlife.ca.gov 8:00 AM to 5:00 PM Pacific Time Aerial Information Systems, Inc (AIS), California Native Plant Society (CNPS), California Department of Fish and Wildlife (DFW) Version 6.2 (Build 9200) ; Esri ArcGIS 10.5.1.7333 ESRI feature type: Simple, Geometry: Arc, Topology: Dataset has been visually inspected. All data produced strives to meet National Mapping Accuracy Standards (NMAS). 12000 None Interpreted on-screen from geo-referenced ortho photography Vector GT-polygon composed of chains 16184 NAD 1983 California Teale Albers 34.0 40.5 -120.0 0.0 0.0 -4000000.0 coordinate pair 0.0001 0.0001 meter D North American 1983 GRS 1980 6378137.0 298.257222101 VegetationWesternRiversideCounty2005 OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. MAPCLASS The finest level of vegetation type mapped (alliance, association, group or macrogroup); or land use for polygons that are not natural vegetation, per the mapping classification. MAPCLASSCODE Code for each vegetation type mapped. MapClassCodes are defined in the MapClass field. NVCSNAME The standardized name of the vegetation description used in the National Vegetation Classification System (see http://usnvc.org/). Since the NVCS does not have categories for human land use or otherwise unvegetated land, those descriptions were drawn from the California Wildlife Habitat Relationship. NVCSLEVEL The standardized level of the vegetation description used in the National Vegetation Classification System (see http://usnvc.org/). CALVEGNAME A crosswalk to the CalVeg vegetation system. Note that there may be a one-to-many relationship between CalVeg and NVCS. See http://www.fs.usda.gov/detail/r5/landmanagement/resourcemanagement/?cid=stelprdb5347192. CALVEGCODE A crosswalk to the CalVeg vegetation system. Note that there may be a one-to-many relationship between CalVeg and NVCS. See http://www.fs.usda.gov/detail/r5/landmanagement/resourcemanagement/?cid=stelprdb5347192. CWHRCODE A crosswalk to the California Wildlife Habitat Relationships system. Note that there is usually a one-to-many relationship between CWHR and NVCS. See http://www.dfg.ca.gov/biogeodata/cwhr/. GLOBALRANK The global rarity rank of the plant community (only for polygons mapped to the alliance level). G1: Fewer than 6 viable occurrences and/or 2000 acres worldwide; G2: 6-20 viable occurrences and/or 2000-10,000 acres worldwide; G3: 21-100 viable occurrences and/or 10,000-50,000 acres worldwide; G4: Greater than 100 viable occurrences and/or greater than 50,000 acres worldwide; G5: Community demonstrably secure due to secure worldwide abundance. See: http://www.natureserve.org/sites/default/files/publications/files/natureserveconservationstatusmethodology_jun12_0.pdf STATERANK The state rarity rank of the plant community (only for polygons mapped to the alliance level). S1: Fewer than 6 viable occurrences and/or 2000 acres statewide; S2: 6-20 viable occurrences and/or 2000-10,000 acres statewide; S3: 21-100 viable occurrences and/or 10,000-50,000 acres statewide; S4: Greater than 100 viable occurrences and/or greater than 50,000 acres statewide; S5: Community demonstrably secure due to secure statewide abundance. See: http://www.natureserve.org/sites/default/files/publications/files/natureserveconservationstatusmethodology_jun12_0.pdf RARE Rarity of the vegetation type. Alliances and associations with state ranks of S1-S3 are considered rare. Y Rare N Not Rare CACODE California Natural Community Codes - unique code assigned to alliances and associations. DENSITY Density of vegetation representing the absolute ground cover as viewed from the air (not field acquired) of the stature of vegetation in which the particular alliance falls in (either trees, shrubs or herbaceous). HGTCLASS Height class of the floristic type. CWHRTYPE A crosswalk to the California Wildlife Habitat Relationships system. Note that there is usually a one-to-many relationship between CWHR and NVCS. See http://www.dfg.ca.gov/biogeodata/cwhr/. SIZECLASS Size class of the floristic type. EXOTICS The level of exotic invasive species, based on what percent of the polygon is impacted. CLEARED Percent cleared, based on what percent of the polygon is impacted. QUAD_NAME USGS 1:24,000 quad name USGS NVCSALLIANCE The standardized name for the alliance within the National Vegetation Classification System. See http://usnvc.org/. NVCSGROUP The standardized name for the group within the National Vegetation Classification System. See http://usnvc.org/. NVCSMG The standardized name for the macrogroup within the National Vegetation Classification System. See http://usnvc.org/. COM_NAME Common name of the alliance, sub-alliance, association, etc. MSHCP_COLL Multi-Species Habitat Conservation Program collapsed vegetation community classification. Western Riverside County Multiple Species Habitat Conservation Plan ACRES GIS-calculated area measurements of each mapped polygon. HECTARES GIS-calculated area measurements of each mapped polygon. UID Unique identifier for each polygon. Shape_Length Length of feature in internal units. ESRI Positive real numbers that are automatically generated. Shape_Area Area of feature in internal units squared. ESRI Positive real numbers that are automatically generated. California Department of Fish and Game Todd Keeler-Wolf Senior Vegetation Ecologist mailing

CDFG 1807 13th Street Room 202

Sacramento CA 95814 US 916 324 6857 916 324 0475 tkwolf@dfg.ca.gov 7:30 AM to 4:00 PM Pacific Time The information depicted in this GIS layer is the result of digital analyses performed on a database consisting of information from a variety of governmental and other credible sources. The accuracy of the information presented is limited to the collective accuracy of the database on the date of the analysis. The information is believed accurate and reasonable efforts have been made to ensure the accuracy of the data. However, the DFG expressly disclaims responsibility for damages or liability that may arise from use of this data. This product is the property of the DFG and its use is thereby restricted. ESRI data format, dependent upon request To be determined at time of order 20221215 California Department of Fish and Wildlife Todd Keeler-Wolf Senior Vegetation Ecologist, Vegetation Classification and Mapping Program mailing

1416 9th Street, 4th Floor

Sacramento CA 95814 US 916 324 6857 Todd.Keeler-Wolf@Wildlife.ca.gov 8:00 AM to 5:00 PM Pacific Time FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time