20220819 vector digital data https://filelib.wildlife.ca.gov/Public/BDB/GIS/BIOS/Public_Datasets/2900_2999/ds2962.zip https://www.wildlife.ca.gov/Data/BIOS The first of two objectives for the study was to develop and test efficient and effective methods for semi-automated vegetation mapping of the recovering plant communities on SCI, specifically using hierarchical object-based classification with a rule-based expert system, ultra-high spatial resolution (UHSR) multispectral imagery, and lidar-derived digital canopy height data.A secondobjective was to map the distribution and quantify the cover of vegetation alliances over the entirety of SCI.The final vegetation map portrays the distribution of 19 vegetation communities across SCI, with the largest areas comprised of California Annual and Perennial Grassland (35 percent) and three types of coastal sage scrub and maritime succulent scrub, comprising a combined 53 percent of the area. Map accuracy was assessed to be 79 percent based on fuzzy methods and 61 percent with a traditional accuracy assessment. The accuracy of tree identification was assessed to be 81 percent, but species-level tree accuracy was 45 percent. SDSU, SPAWAR, and USN developed and tested an approach based on hierarchical object-based classification with a rule-based expert system to effectively map vegetation communities on San Clemente Island following the Manual of California Vegetation classification system. This mapping approach closely resembles the process that human image interpreters use to identify species, identify stands with homogeneous species composition, estimate percent cover, and work through a mapping ruleset to assign the correct community type. The primary imagery source was a 4-band aerial multispectral orthoimage dataset, acquired in November 2015, having a high spatial resolution of 0.15 m. In addition, they used products derived from other recent orthoimagery and lidar datasets. Rarity Ranking Rarity ranks for various types in this map have been updated utilizing the NatureServe Conservation Status Assessments Rank Calculator Version 3.186, and are current as of July 5, 2022. Rarity ranks are subject to change due to changing threats and trends and as ranking methodologies are further refined. Please check CDFW’s Natural Communities page for the most up-to-date rarity ranks (https://www.wildlife.ca.gov/Data/VegCAMP/Natural-Communities). References Uyeda KA, Warkentin KK, Stow DA, et al. Vegetation mapping using hierarchical object-based image analysis applied to aerial imagery and lidar data. Appl Veg Sci. 2020;23:80–93. https://doi.org/10.1111/avsc.12467 Complete Unknown -118.612098 -118.343815 33.038150 32.798509 None San Clemente Island, California Department of Water Resources, California Department of Fish and Wildlife, National Vegetation Classification Standard, NVCS, Manual of California Vegetation ISO 19115 Topic Categories biota environment imageryBaseMapsEarthCover None San Clemente Island, California None CDFW’s VegCAMP appreciates learning how these vegetation 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 us at VegCAMP@wildlife.ca.govor email any of the staff listed here: https://wildlife.ca.gov/Data/VegCAMPLicense: 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. SPAWAR Systems Center Pacific Leslie A. Bolick Department of Geography, San Diego State Kellie A. Uyeda kuyeda@sdsu.edu California Department of Fish and Wildlife VegCAMP Program Lead VegCAMP@wildlife.ca.gov California Department of Fish and Wildlife Monica Tydlaska GIS Specialist Monica.Tydlaska@wildlife.ca.gov Department of Geography, San Diego State Kellie A. Uyeda kuyeda@sdsu.edu California Department of Fish and Wildlife VegCAMP Program Lead VegCAMP@wildlife.ca.gov This map was created by Kellie A. Uyeda, Kelsey K. Warkentin and Rachel A. Snavely. This project was funded under agreement (Cooperative Agreement Award No: W9126G-15-2-0034) by the U.S. Army Corps of Engineers. It was prepared for publication in BIOS by the California Department of Fish and Wildlife’s (CDFW) Vegetation Classification and Mapping Program (VegCAMP). Version 6.2 (Build 9200) ; Esri ArcGIS 10.6.1.9270 Vector GT-polygon composed of chains 18692 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 ds2962 OBJECTID Sequential unique whole numbers that are automatically generated. Esri Sequential unique whole numbers that are automatically generated. SHAPE Coordinates defining the features. Esri Coordinates defining the features. MCVName Names will be the same as ones used in the Manual of California Vegetation and California Natural Community List (https://wildlife.ca.gov/Data/VegCAMP/Natural-Communities). These standardized names correspond as much as possible to the National Vegetation Classification System (see http://usnvc.org/) or are submitted to the regional editors for induction.Classes for human land use or otherwise unvegetated land were drawn from the California Wildlife Habitat Relationships. https://vegetation.cnps.org/ MCVLevel The standardized level of the vegetation description in the Manual of California Vegetation corresponding with levels of the National Vegetation Classification System. https://vegetation.cnps.org/ MapCode The code for a vegetation association, alliance, group, unvegetated type, or land use for polygons that are not natural vegetation. This code matches the Veg field from the Report. Report MapClass The finest level of vegetation type mapped (alliance, association, group or macrogroup); or descriptions for polygons that are not natural vegetation per the mapping classification, including land use and natural barrens or water features. Map classes are described in the mapping report. This name matches the VegName field from the Report. Report Alliance Alliance field class as described in the mapping report. Report Group_ Group field class as described in the mapping report. Report Macrogroup Macrogroup field class as described in the mapping report. Report CalVegType A crosswalk to the Classification and Assessment with Landsat of Visible Ecological Groupings (CalVeg) vegetation system (USDA Forest Service). Note that there may be a one-to-many relationship between CalVeg and NVCS, but the best crosswalk for this area is chosen. https://www.fs.usda.gov/detail/r5/landmanagement/resourcemanagement/?cid=stelprdb5347192 CalVegCode The code used for the CalVeg type https://www.fs.usda.gov/detail/r5/landmanagement/resourcemanagement/?cid=stelprdb5347192 CWHRType A crosswalk to the California Wildlife Habitat Relationships system. Note that there is usually a one-to-many relationship between CWHR and NVCS. The best fit for this area has been chosen. https://wildlife.ca.gov/Data/CWHR/Wildlife-Habitats CWHRCode The code for the CWHR type. https://wildlife.ca.gov/Data/CWHR/Wildlife-Habitats GlobalRank The global rarity ranking of the plant community mapped (ranks are available for all California alliances, and some associations). Ranks are based on a set of criteria including the rarity of the community (extent and occupancy), the threats that the community is subject to, and any known trends in the quality, size, or quantity of stands within the state. Ranks go from G1 which is critically imperiled/has very few occurrences to G5, when a community is demonstrably secure due to broad distribution with area not subject to threats. Ranks G1-G3 are considered sensitive. See: http://www.natureserve.org/sites/default/files/publications/files/natureserveconservationstatusmethodology_jun12_0.pdf and https://wildlife.ca.gov/Data/VegCAMP/Natural-Communities Ranks are current as of the publication date or update date. http://www.natureserve.org/sites/default/files/publications/files/natureserveconservationstatusmethodology_jun12_0.pdf and https://wildlife.ca.gov/Data/VegCAMP/Natural-Communities StateRank The state rarity ranking of the plant community mapped (ranks are available for all California alliances, and some associations). Ranks are based on a set of criteria including the rarity of the community (extent and occupancy), the threats that the community is subject to, and any known trends in the quality, size, or quantity of stands within the state. Ranks go from S1 which is critically imperiled/has very few occurrences to S5, when a community is demonstrably secure due to security globally. Ranks S1-S3 are considered sensitive. See: http://www.natureserve.org/sites/default/files/publications/files/natureserveconservationstatusmethodology_jun12_0.pdf and https://wildlife.ca.gov/Data/VegCAMP/Natural-Communities Ranks are current as of the publication date or update date. http://www.natureserve.org/sites/default/files/publications/files/natureserveconservationstatusmethodology_jun12_0.pdf and https://wildlife.ca.gov/Data/VegCAMP/Natural-Communities Sensitive Is the vegetation type considered sensitive? Y= yes, sensitive natural community. Alliances and associations with global ranks of G1-G3 state ranks of S1-S3 are considered sensitive natural communities. Additionally if an association has not gone through the ranking process, but is estimated to be sensitive Y will be shown without a G or S rank. Ranks are current as of the publication date or update date. https://www.wildlife.ca.gov/Data/VegCAMP/Natural-Communities/Background CaCode California Natural Community Codes - unique code assigned to alliances and associations. https://www.wildlife.ca.gov/Data/VegCAMP/Natural-Communities MCVAlliance The standardized name for the alliance within the NVCS as interpreted in the Manual of California Vegetation. https://vegetation.cnps.org/ MCVGroup The standardized name for the group within the National Vegetation Classification System, with some potential exceptions within the Manual of California Vegetation Database. https://vegetation.cnps.org/ MCVMacrogroup The standardized name for the macrogroup within the National Vegetation Classification System, with some potential exceptions within the Manual of California Vegetation Database. https://vegetation.cnps.org/ CommunityLink The link to the alliance in the Manual of California Vegetation Online. https://vegetation.cnps.org/ Acres GIS Calculated acres based on calculation done in California (Teale) Albers, NAD83 Hectares GIS Calculated hectares based on calculation done in California (Teale) Albers, NAD83 UID Unique identifier for each polygon. Calculated at the end of project. 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. 20220819 SPAWAR Systems Center Pacific Leslie A. Bolick FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time CDFW’s VegCAMP appreciates learning how these vegetation 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 us at VegCAMP@wildlife.ca.govor call any of the staff listed here: https://wildlife.ca.gov/Data/VegCAMPLicense: 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.