California Department of Fish and Wildlife 20181220 vector digital data https://www.wildlife.ca.gov/Data/BIOS https://filelib.wildlife.ca.gov/Public/BDB/GIS/BIOS/Public_Datasets/2800_2899/ds2805.zip The Mendocino Pygmy Forest is one of the best-known examples of a rare natural community in California. The unique soil and climatic attributes and the resulting vegetation of the Mendocino coastal terraces described by Jenny et al (1969), Westman (1975), Westman and Whittaker (1975), Sholars (1979), Sholars (1982), Sholars (1984) and others are well- known in the scientific and conservation literature.The mapping and classification process assumed that the unique and biologically significant elements of the pygmy forest ecosystem were definable without a complete inventory of the surrounding regional vegetation and land-use patterns. The boundary of the mapped areas was created using existing geographic information on soils, topography, land use, along with fieldwork from previous efforts. Within that area, an array of vegetation samples were collected and classified representing the full array of vegetation patterns within it. The boundary was refined as part of the mapping process. It was later expanded to include property owned by the Mendocino Coast Park and Recreation District after receiving permission to conduct surveys as part of this project. (Polygons that would not have been mapped for the original project but are within the MCPRD property are marked “MCPRD Additional” in the Notes field.)The map was produced using a classification based on an analysis of surveys taken throughout the range of the oligotrophic areas supporting Pygmy Forest vegetation. This classification has been incorporated into the Manual of California Vegetation Online Database. The map classification is mostly at the Association Level of the NVCS hierarchy (12 types), with some at the Alliance Level (5 types) and Group Level (3 types), and 4 land use and water classes. It was hand-digitized using photointerpretation based on the 2014 NAIP Imagery, with other ancillary data used to help with the identification of vegetation types. The minimum mapping unit was 1 acre for vegetation types, and 0.25 acres for water, developed and agricultural type. The total area mapped was 9782 acres.An accuracy assessment performed on the map. The overall accuracy of each of the 5 most reliably sampled types was between 82 and 92 percent accuracy, meeting minimum accuracy standards.For more information, see the supplemental information below and the report for the map cited in the references. https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=161736ReferencesCalifornia Department of Fish and Wildlife, Vegetation Classification and Mapping Program. Classification and Mapping of Pygmy Forest and Related Mendocino Cypress (Hesperocyparis pygmaea) Vegetation, Mendocino and Sonoma Counties, California. CDFW; 11/2018. A Manual of California Vegetation, Online Edition. http://www.cnps.org/cnps/vegetation/. California Native Plant Society, Sacramento, CA.USNVC [United States National Vegetation Classification]. http://usnvc.org/. 2017. United States National Vegetation Classification Database, V2.01. Federal Geographic Data Committee, Vegetation Subcommittee, Washington DCJenny, H. R.J. Arkley, and A.M. Schultz. 1969. The pygmy forest-podsol ecosystem and its dune associates of the Mendocino coast. Madroño20:60-74.Westman, W.E. 1975. Edaphic climax pattern of the pygmy forest region of California. Ecological Monographs30:279-338.Westman, W.E. and R.H. Whittaker. 1975. The pygmy forest region of northern California: studies on biomass and primary productivity. Journal of Ecology63:493-520.Sholars, R.E. 1979. Water relations in the pygmy forest of Mendocino County. Ph.D. diss. University of California, Davis.Sholars, R.E. 1982. The pygmy forest and associated plant communities of coastal Mendocino County, California; genesis, soils, vegetation. Black Bear Press, Mendocino, CA.Sholars, R.E. 1984. The pygmy forest of Mendocino. Fremontia12(3): 3-8.Bowles, C.J. and E. Cowgill. 2012. Discovering marine terraces using airborne LiDAR along the Mendocino-Sonoma coast, northern California. Geosphere8(2):386–402.Soil Survey Staff, Natural Resources Conservation Service (NRCS), United States Department of Agriculture. Web Soil Survey. Available online at https://websoilsurvey.nrcs.usda.gov/. Accessed [October 13, 2014].National Agriculture Imagery Program (NAIP), United States Department of Agriculture. https://www.fsa.usda.gov/programs-and-services/aerial-photography/imagery-programs/naip-imagery/index The purpose of this map is delineate the unique suite of vegetation types, (or natural communities) that are restricted to, or characteristic of the nutrient-poor (oligotrophic) soils of the outer coast of Mendocino and adjacent Sonoma counties to support local planning, management, and conservation efforts.This includes, but is not limited to, vegetation characterized by the Mendocino or pygmy cypress (Hesperocyperis pygmaea).The map records information on the vegetation type, horizontal and vertical structure, and degree of disturbance for each individual occurrence. It also categorizes anthropogenic areas within the area, including development, roads, and other land-use patterns. These areas can show and summarize habitat loss or degradation relative to the likely original extent of the natural vegetation. We used several spatial data layers to circumscribe the potential universe of oligotrophic communities, the mapping area for this project. These included: • Selected soil types from the SSURGO soil database (NRCS 2014) likely to support oligotrophic vegetation in coastal Mendocino and Sonoma counties, based on previous studies and field observations (Jenny et al. 1969, T. Sholars, pers. comm.). Primary soil types include Blacklock and Aborigine, Shinglemill-Gibney Complex, and Tropaquepts; secondary types include Gibney-Gibwell complex, Gibney loamy sand, Noyo coarse sandy loam, Seaside-Rock outcrop complex, and Tregoning-Cleone complex mapping units. • Point locations for pygmy forest field observations made by CDFW Region 1 staff. • H. pygmaea occurrences produced by the California Native Plant Society • Rhiannon Korhummel’s field reconnaissance observations of pygmy forest or Mendocino cypress collected for graduate work (pers. comm.) • Plant species composition and cover plot data collected along a soil gradient from pygmy to non-pygmy forest, provided by Dr. William Russell (pers. comm., see also Russell and Woolhouse 2012) • Map of pygmy forest locations based on field observation and image interpretation from Tom Bendure, Mendocino Redwoods Company Inventory Forester (pers. comm). • Sonoma and Mendocino county coastal marine terraces mapped using airborne LiDAR (Chris Bowles, pers. comm., see also Bowles, C.J. and E. Cowgill 2012). The polygons drawn from the combination of the above data served as the basis for the scope of our field sampling and mapping. Interpretation of aerial imagery (NAIP 2014) was used to exclude portions of the polygons that were heavily urbanized. As the mapping progressed, new areas south of the Navarro River were added based on image interpretation. The general rule for minimum mapping unit was 1 acre minimum for a vegetation polygon and 0.25 for land use and water polygons. In addition to map class, polygons could be created based on the other, following breaks: Break vegetation polygons of the same type into smaller polygons, with a 1-acre minimum mapping unit, based on a cover class change in the dominant layer per the following cover classes: Cover classes (Braun-Blanquet): 1=<1%, 2=1-5%, 3=>5-15%, 4=>15-25%, 5=>25-50%, 6=>50-75%, 7=>75% Also, break tree-dominated vegetation polygons of the same type into smaller polygons, with a 1-acre minimum mapping unit, based on changes in tree height class. Do not break on Exotics, Hydrologic/Nutrient modification, Roadedness values, or Anthropogenic alteration (unless the mmu for Anthropogenic alteration – 0.25 acres – is reached). Roads: Unpaved roads > 30 ft wide OR paved roads are mapped as “Built Up and Urban Disturbance” and split habitat polygons. In work As needed -123.810616 -123.287672 39.488032 38.546173 None Association level, vegetation ISO 19115 Topic Categories biota environment None Mendocino County, Sonoma County, California North Coast, California, Ft. Bragg, Mendocino None 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 VegCAMP (Vegetation Classification and Mapping Program) Vegetation Classification and Mapping Program Lead mailing and physical

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

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Sacramento CA 95811 (916) 324-9765 VegCAMP@wildlife.ca.gov California Department of Fish And Wildlife (CDFW) Vegetation Mapping and Classification Program and CDFW Region 1 Version 6.2 (Build 9200) ; Esri ArcGIS 10.6.1.9270 Vector GT-polygon composed of chains 1598 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 ds2805 OBJECTID Internal feature number. Esri Sequential unique whole numbers that are automatically generated. Shape Feature geometry. Esri Coordinates defining the features. NVCSName An NVC compliant scientific name for the vegetation community (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. A Manual of California Vegetation, Second Edition (Todd Keeler-Wolf et.al 2009) NVCSLevel The standardized level of the vegetation description used in the 2008 National Vegetation Classification System (see http://usnvc.org/). A Manual of California Vegetation, Second Edition (Todd Keeler-Wolf et.al 2009) MapClass The finest level of vegetation type mapped (alliance, group or macrogroup); or land use for polygons that are not natural vegetation, per the mapping classification. Classification and Mapping of Pygmy Forest and Related Mendocino Cypress Vegetation (VegCAMP 2018) MapClassCode Code for each vegetation type mapped. MapClassCodes are defined in the MapClass field. Classification and Mapping of Pygmy Forest and Related Mendocino Cypress Vegetation (VegCAMP 2018) ConCov Estimate cover by cover class as “bird’s-eye cover” including plant porosity. Conifer (ConCov) cover is estimated based on regenerating trees as well as trees >6” dbh. Classification and Mapping of Pygmy Forest and Related Mendocino Cypress Vegetation (VegCAMP 2018) 0 none 1 0-1% cover 2 >1-5% cover 3 >5-15% cover 4 >15-25% cover 5 >25-50% cover 6 >50-75% cover 7 >75-100% cover 9 not applicable (not a vegetation polygon) HdwdCov Estimate cover by cover class as “bird’s-eye cover” including plant porosity. Hardwood (HdwdCov) cover is estimated based on regenerating trees as well as trees >6” dbh. Classification and Mapping of Pygmy Forest and Related Mendocino Cypress Vegetation (VegCAMP 2018) 0 none 1 0-1% cover 2 >1-5% cover 3 >5-15% cover 4 >15-25% cover 5 >25-50% cover 6 >50-75% cover 7 >75-100% cover 9 not applicable (not a vegetation polygon) TreeCov Estimate cover by cover class as “bird’s-eye cover” including plant porosity. Any overlap of conifer and hardwood is not included in the Total Tree Cover (TreeCov). Classification and Mapping of Pygmy Forest and Related Mendocino Cypress Vegetation (VegCAMP 2018) 0 none 1 0-1% cover 2 >1-5% cover 3 >5-15% cover 4 >15-25% cover 5 >25-50% cover 6 >50-75% cover 7 >75-100% cover 9 not applicable (not a vegetation polygon) ShrubCov Shrub cover includes estimated shrub cover under trees in cover classes. However, if tree cover is greater than or equal to 50%, then shrub cover is not estimated ( =not applicable) because it is not possible to estimate. Classification and Mapping of Pygmy Forest and Related Mendocino Cypress Vegetation (VegCAMP 2018) 0 none 1 0-1% cover 2 >1-5% cover 3 >5-15% cover 4 >15-25% cover 5 >25-50% cover 6 >50-75% cover 7 >75-100% cover 9 not applicable Roadedness Estimated percentage of the stand that does not have roads or one or two track vehicle trails, i.e., the area of largest unroaded (intact portion) of the stand divided by the area of the entire stand. Classification and Mapping of Pygmy Forest and Related Mendocino Cypress Vegetation (VegCAMP 2018) 0 None or none visible. However, note: we saw roads in areas of higher tree cover in the field that did not show up on the imagery. 1 Low: there is an intact portion of the stand that makes up at least 67% of the entire stand. Also, if a stand is bounded by a road for more than 10 m of its perimeter, whether or not the road is pulled out as a separate poly (i.e., it is >10 m wide and paved), the polygon gets a 1 for roadedness. 2 Moderate: between 33% and 66% of the vegetation polygon is intersected by roads. 3 High: less than 33% of the vegetation polygon lacks roads. 9 Not applicable. Development Estimated percentage of the polygon that is affected by sub-mmu occurrences of structures, cement pads, trash piles, etc. Classification and Mapping of Pygmy Forest and Related Mendocino Cypress Vegetation (VegCAMP 2018) 0 None or none visible. 1 Low: <2% of polygon affected. Structures, cement pads, trash piles, etc. are widely spaced at very low density. 2 Moderate: 2-5% - Multiple examples of structures, cement pads, trash piles, etc. are visible throughout the polygon. There may be a dense concentration of development within a single or few parts of the vegetation polygon. 3 High: >5% - Multiple structures, etc., are evenly distributed in a vegetated polygon to cover at least 5% of the polygon, but remain individually isolated and surrounded by the predominant vegetation for which the polygon is labeled. If such an area is 0.25 acres or larger, it would be mapped separately as a Built-up polygon. 9 Not applicable. Exotics The level of invasion by exotics 0 No exotics visable 1 <2% of polygon affected, exotic plants are at low density or patchy. 2 2-5% of the polygon is affected 3 >5% of the polygon is affected by exotics, or stand may be characterized by exotics 9 Not applicable. Either understory not visable or mapped type not a vegetation class AntroAlt Anthropogenic areas of little or no vegetation: These are areas with little vegetation cover resulting from human-related clearing. Vegetation is <10% cover, and, if present, is not evenly or naturally distributed across the polygon. A small area of herbaceous vegetation that is adjacent to a larger cleared area may be included in a polygon mapped as this type. HydroNutrientMod This attribute captures, when interpretable on the imagery, situations in which hydrologic and/or nutrient modification has resulted in changes to oliotrophic vegetation. These situations occur when oligotrophic soils are being unnaturally drained by roads and ditches, or when nutrients from adjacent land use increase the stature or cover of otherwise “pygmy” vegetation. Classification and Mapping of Pygmy Forest and Related Mendocino Cypress Vegetation (VegCAMP 2018) 0 No hydrology/nutrient modification 1 Appears altered by hydrology or nutrient changes 9 Not applicable MethodID How the map unit and attributes were determined: Classification and Mapping of Pygmy Forest and Related Mendocino Cypress Vegetation (VegCAMP 2018) 1 Rapid assessment (current project) 2 Relevé 3 Field verification or accuracy assessment field form 4 Photo interpretation 5 Adjacent stand information or photo 6 Reconnaissance (current project) 7 Other information (can include using street view in Google Earth) 8 Other plot information 9 Older reconnaissance data SurveyID Sample identification number, if a field form was used to attribute the polygon. Notes Any comments that may be helpful to map users. The maping boundary was expanded to include property owned by the Mendocino Coast Park and Recreation District after receiving permission to conduct surveys as part of this project. Polygons that would not have been mapped for the original project but are within the MCPRD property are marked “MCPRD Additional” in the Notes field. TreeHeight The height class for the dominant layer. For classic pygmy vegetation, the tree height may be 1-5 m, even though they have been listed as regenerating tree in the field sample. If there are some taller trees over a pygmy layer, the modal height has been recorded, that is, the pygmy tree height. Not averaged with emergent tree height. For shrub types with an emergent tree layer, the height of that layer is here. Classification and Mapping of Pygmy Forest and Related Mendocino Cypress Vegetation (VegCAMP 2018) 2 <1 m 4 1-5 m 5 5-10 m 6 10-15 m 11 >15 m 99 not applicable TreeDBH An estimate of the mean diatemer at breast height of all trees over the entire stand, weighted towards the larger trees' dbh values. Classification and Mapping of Pygmy Forest and Related Mendocino Cypress Vegetation (VegCAMP 2018) T1 <1” dbh T2 1” to 6” dbh T3 >6” to 11” dbh T4 >11” to 24” dbh T5 > 24” dbh 99 not applicable UID Unique identifier for each polygon. 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. 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. http://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. See http://www.dfg.ca.gov/biogeodata/cwhr/. See http://www.dfg.ca.gov/biogeodata/cwhr/. 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/. 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 http://www.natureserve.org/sites/default/files/publications/files/natureserveconservationstatusmethodology_jun12_0.pdf StateRank The state rarity rank of the plant community. 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 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. 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 NVCSAlliance An NVC compliant scientific name for the vegetation alliance (see http://usnvc.org/).. See http://usnvc.org/. A Manual of California Vegetation, Second Edition (Todd Keeler-Wolf et.al 2009) NVCSGroup The standardized name for the group within the 2008 National Vegetation Classification System. See http://usnvc.org/. A Manual of California Vegetation, Second Edition (Todd Keeler-Wolf et.al 2009) NVCSMG The standardized name for the macrogroup within the 2008 National Vegetation Classification System. See http://usnvc.org/. A Manual of California Vegetation, Second Edition (Todd Keeler-Wolf et.al 2009) Acres GIS-calculated area measurements of each mapped polygon. Hectares GIS-calculated area measurements of each mapped 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. 20220324 California Department of Fish and Wildlife Rosie Yacoub GIS Specialist rosalie.yacoub@wildlife.ca.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time This work is licensed under Creative Commons Attribution 4.0 International License .