California Department of Fish and Wildlife (CDFW) 20140822 vector digital data https://wildlife.ca.gov/Data/BIOS https://filelib.wildlife.ca.gov/Public/BDB/GIS/BIOS/Public_Datasets/500_599/ds500.zip Vegetation delineations based on photo interpretation and formal vegetation classification plus change detection. This is part of an ongoing monitoring project that the Biogeographic Data Branch of the California Department of Fish and Wildlife (DFW), in collaboration with the Department of Water Resources and the DFW Water Branch, started in 1999 to track changes in the Suisun Marsh vegetation over time. This is the third update since the original map was made in 1999. Orthorectified, true color imagery was flown in June 2006 to mimic as close as possible the June 1999 and June 2003 Suisun imagery time frame and plant phenology. This imagery was received as 427 high quality, individual, flight line ortho-photographs. The aerial imagery was interpreted and changes were made to the vegetation polygon shapefile using ArcMap 9.2 (ESRI™). The criteria for a polygon to be considered "changed" were first laid out in the change detection report for 2003 (Vaghti and Keeler-Wolf 2004), and are repeated here: The following changes were considered significant and consistently interpretable, and were assessed: " A greater than 20% change in acreage of an exiting small polygon (<1 acre) " A greater than 10% change in acreage of a mid-sized polygon (1-5 acres) " A greater than 5% change in a large polygon (>5 acres) " A type conversion of a vegetation polygon dominated by perennial species. Type conversion, as defined here, occurs when a previously mapped vegetation type dominated by perennial species has changed based on the decision rules set forth in the vegetation mapping unit key defined in Table 5 of Vegetation Mapping of Suisun Marsh, Solano County (Keeler-Wolf et al. 2000), or when an annual species dominated vegetation type is converted to a perennial vegetation type. " A persistent physical change has altered any vegetation polygon and partially or entirely replaced it with a non-vegetated area (non-vegetated areas include buildings, dredged ditches, new levees, roads, or other human engineered structures). " A change in management style, which includes a conversion or restoration from an actively managed situation (annual burning, disking, plowing, flooding, or other management practice which annually disturbs the vegetation) to a passively managed, or un-managed, situation. The following changes were considered non-significant and/or unreliably interpretable and were not assessed: " Annual to annual type conversion were not considered because of the vagaries of climate on annual vegetation. Appendix 2 highlights these excluded types in yellow. " Polygons that are regularly heavily managed by annual burning, disking, flooding, or other means were not considered. These changes, unless they show some direction (e.g., from passive management to active, or vice versa), are considered regular management perturbations and maintain the same general vegetation pattern through regular disturbance. A copy of the 2003 vegetation polygon shapefile was made and modified for the 2003-2006 change detection and then it was linked to a new 2006 Microsoft Access® table for data entry. For consistency the attributes and vegetation types for the 2006 change detection remained the same as in 2003. When changes in size or shape of polygons were detected, they were cut using the "Cut Polygon Features" task and then merged using the "Merge" option in ArcMap. 250 releve field samples were collected in 1999. 250 rapid assessment field samples were collected in 2000. 99 rapid assessment field samples were collected in 2003. 98 of the origional 250 releves were resampled in 2006. The complete report can be viewed at: https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=48107. The attributes described in the 2006 Suisun Marsh Vegetation Change Detection report differ slightly to what is actually presented in this dataset. All reference to the 1999 and 2003 vegetation maps (see Appendix 1 in the report) have been removed from this dataset, which now only reflects data for the 2006 Suisun Marsh vegetation. This is the third update since the orginal map was made in 1999. The first update was conducted one year after the initial aerial photo-interpretation (see ds161), is described in Vegetation Mapping of Suisun Marsh, Solano County (Keeler-Wolf and Vaghti, 2000): https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=24570. The second update, done three years later in 2003 (see ds162), is summarized in Suisun Marsh Vegetation Mapping Change Detection 2003 (Vaghti and Keeler-Wolf 2004): https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=18254. The fourth update, done in 2009 (see ds711), is summarized in 2009 Vegetation Map Update for Suisun Marsh, Solano County, California (Boul and Keeler-Wolf 2012): https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=48108. The fifth update was done in 2012 (the vegetation map and report are not yet available to the public). Complete None planned -122.137460 -121.849125 38.251313 38.038229 None wetland land cover Vegetation tidal marsh ISO 19115 Topic Category environment biota None San Francisco Bay Delta Bay Delta Suisun Marsh Solano County California None 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 (CDFW) Vegetation Classification and Mapping Program Program Lead unknown

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Sacramento CA 95811 US (916) 324-9765 VegCAMP@wildlife.ca.gov California Department of Fish and Wildlife (CDFW) Vegetation Classification and Mapping Program Program Lead unknown

1700 9th Street, 4th Floor

Sacramento CA 95811 US (916) 324-9765 VegCAMP@wildlife.ca.gov Vegetation Classification and Mapping Program (VegCAMP), Department of Fish and Wildlife. Version 6.2 (Build 9200) ; Esri ArcGIS 10.5.1.7333 In keeping with the monitoring focus of the Suisun Marsh Vegetation Surveys (Keeler-Wolf et al. 2000), in 2006, 100 of the original 198 Suisun Marsh vegetation plots were selected to be revisited for the first time since their establishment in the summer of 1999. To enable regular re-sampling into the future without any access issues, only those plots located on DFG land, Rush Ranch, or other publicly-accessible lands were considered for resampling. Of these plots, 100 were selected by the DFG Vegetation Classification and Mapping Program to capture the diversity of vegetation types that represent the Marsh's vegetation as a whole. Due to the construction of the new Benicia-Martinez Bridge, two of the selected 100 plots are no longer in existence. Therefore, 98 plots were resampled. Each plot was located based on careful interpretation of GPS coordinates, field sample photos, aerial photos, and plot descriptions provided in the original 1999 field data. For more detailed information on the field data collection protocol and analysis refer to The Vegetation of Suisun Marsh, Solano County, California: First Permanent Plot Resample Study 1999 vs. 2006 (Boul et al. 2007). A copy of the 2003 vegetation polygon shapefile was made and modified for the 2003-2006 change detection and then it was linked to a new 2006 Access table for data entry. For consistency the attributes (Table 1) and vegetation types (Table 2) for the 2006 change detection remained the same as in 2003. When a change in size of shape of polygons were detected, they were cut using the "Cut Polygon Features" task and they were merged using the "Merge" option in ArcMap The criteria for a polygon to be considered "changed" is described in the change detection report for 2003 (Vaghti and Keeler-Wolf 2004). The following changes were considered significant and consistently interpretable, and were assessed: o A greater than 20% change in acreage of an exiting small polygon (<1 acre) o A greater than 10% change in acreage of a mid-sized polygon (1-5 acres) o A greater than 5% change in a large polygon (>5 acres) o A type conversion of a vegetation polygon dominated by perennial species. Type conversion, as defined here, occurs when a previously mapped vegetation type dominated by perennial species has changed based on the decision rules set forth in the vegetation mapping unit key defined in Table 5 of Vegetation Mapping of Suisun Marsh, Solano County (Keeler-Wolf et al. 2000), or when an annual species dominated vegetation type is converted to a perennial vegetation type. o A persistent physical change has altered any vegetation polygon and partially or entirely replaced it with a non-vegetated area (non-vegetated areas include buildings, dredged ditches, new levees, roads, or other human engineered structures). o A change in management style, which includes a conversion or restoration from an actively managed situation (annual burning, disking, plowing, flooding, or other management practice which annually disturbs the vegetation) to a passively managed, or un-managed, situation. Vaghti, M. and T. Keeler-Wolf. 2004. Suisun Marsh Vegetation Mapping Change Detection 2003. Unpublished administrative report on file at Biogeographic Data Branch, California Department of Fish and Game, Sacramento Orthorectified, true color imagery was flown in June 2006 to mimic as close as possible the 1999 and 2003 Suisun imagery time frame and plant phenology. This imagery was received as 427 high quality, individual, flight line orthos. The aerial imagery was interpreted and changes were made to the vegetation polygon shapefile using ArcMap 9.2. Data projected from original State Plane Coordinate System, NAD83 to California Albers NAD83 Vector GT-polygon composed of chains 26855 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 ds500 Suisun marsh vegetation 2003 in State Plane II, NAD 83, Feet with attributes 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/. 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. 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. RARE Rarity of the vegetation type. Alliances and associations with state ranks of S1-S3 are considered rare. N Not Rare U Unknown Y Rare NVCSMG The standardized name for the macrogroup within the National Vegetation Classification System. See http://usnvc.org/. 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/. Hectares GIS-calculated area measurements of each mapped polygon. MgmtRegion Each polygon falls within one of the four management Regions described in the Suisun Marsh Habitat Management, Preservation, and Restoration Plan (http://www.usbr.gov/mp/nepa/nepa_projdetails.cfm?Project_ID=781) and is attributed accordingly. 3 Region 3 4 Region 4 2 Region 2 1 Region 1 ACRES GIS-calculated area measurements of each mapped polygon. UID Unique identifier for each polygon. Ht_06 Assessed height class in 2006. 5 5-10m 2 0.5-1m 6 >10m 1 <0.5m 0 N/A 3 1-2m 4 2-5m Dist_06 Assessed disturbance class in 2006. 3 Medium 2 Low 1 Not evident 4 High 0 N/A NVCSLEVEL The standardized level of the vegetation description used in the National Vegetation Classification System (see http://usnvc.org/). CACODE California Natural Community Codes - unique code assigned to alliances and associations. ID_06 How assessment was determined in 2006. U updated P photo interpretation R reconnaissance S06 sampled in 2006 (Releve) STATERANK The state rarity rank of the plant community mapped (only for alliances). G1 and S1: Fewer than 6 viable occurrences worldwide and/or 2000 acres; G2 and S2: 6-20 viable occurrences worldwide and/or 2000-10,000 acres; G3 and S3: 21-100 viable occurrences worldwide and/or 10,000-50,000 acres; G4 and S4: Greater than 100 viable occurrences worldwide and/or greater than 50,000 acres; G5 and S5: Community demonstrably secure due to secure worldwide and statewide abundance. See: http://www.natureserve.org/publications/ConsStatusAssess_RankMethodology.jsp. Habitat Identifies the areas within the Marsh that are tidally influenced versus areas that are leveed (or managed). 2 Leveed 1 Tidally influenced 3 Slough MAPCLASSCODE Code for each vegetation type mapped. MapClassCodes are defined in the MapClass field. Shape Feature geometry. ESRI Coordinates defining the features. 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. COVER_06 Assessed cover class in 2006. 6 >10m 4 2-5m 5 5-10 3 1-2m 2 0.5-1m 0 N/A 1 <0.5m OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. NVCSGroup The standardized name for the group within the National Vegetation Classification System. See http://usnvc.org/. 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. GLOBALRANK The global rarity rank of the plant community mapped (only for alliances). G1 and S1: Fewer than 6 viable occurrences worldwide and/or 2000 acres; G2 and S2: 6-20 viable occurrences worldwide and/or 2000-10,000 acres; G3 and S3: 21-100 viable occurrences worldwide and/or 10,000-50,000 acres; G4 and S4: Greater than 100 viable occurrences worldwide and/or greater than 50,000 acres; G5 and S5: Community demonstrably secure due to secure worldwide and statewide abundance. See: http://www.natureserve.org/publications/ConsStatusAssess_RankMethodology.jsp. NVCSAlliance The standardized name for the alliance within the National Vegetation Classification System. See http://usnvc.org/. 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. CA Dept. of Fish and Game, Biogeographic Data Branch Todd Keeler-Wolf Senior Vegetation Ecologist mailing and physical

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Sacramento CA 95811 US 916-324-6857 916-324-0475 tkwolf@dfg.ca.gov See access and use constraints information. 20220329 California Department of Fish and Wildlife (CDFW) Vegetation Classification and Mapping Program Program Lead unknown

1700 9th Street, 4th Floor

Sacramento CA 95811 US (916) 324-9765 VegCAMP@wildlife.ca.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time