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1,193 results returned

  1. Title: Population Density in Watersheds: San Francisco Bay Area, California, 2009

    • 2011
    Contributors:

    Summary: This polygon shapefile depicts a watershed integrity cluster analysis at the CalWater 2.2.1 Planning Watershed (PWS) level performed by mapping factors representing some of the most significant watershed threats. Each of the individual watershed integrity factors was individually mapped and then combined in the watershed cluster analysis. This individual threat, cultivated, was created by taking CalWater watersheds at the planning unit level (most refined) and running zonal stats, part of spatial analyst. The Calwater PWS watershed was the zone dataset (pwsname as the zone field) and Population Density as the value raster. The result gives you the mean percent population density of the nine county San Francisco Bay Area Region, California at the watershed level in a table that you can join back to the CalWater GIS layer and then symbolize as a graduated color with the mean being the value field. This analysis was done by the Conservation Lands Network Fish and Riparian Focus Team. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Population Density in Watersheds: San Francisco Bay Area, California, 2009. Bay Area Open Space Council. Available at http://purl.stanford.edu/wc460zb2749. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  2. Title: Protected Areas in Watersheds: San Francisco Bay Area, California, 2009

    • 2011
    Contributors:

    Summary: This polygon shapefile depicts a watershed integrity cluster analysis at the CalWater 2.2.1 Planning Watershed (PWS) level performed by mapping factors representing some of the most significant watershed threats. Each of the individual watershed integrity factors was individually mapped and then combined in the watershed cluster analysis. This individual threat, cultivated, was created by taking calwater watersheds at the planning unit level (most refined) and running zonal stats, part of spatial analyst. The Bay Area Open Space Council Bay Area Protected Areas Database (BPAD) protected areas data was converted to a grid so that zonal stats could be used. The CalWater PWS watershed was the zone dataset (pwsname as the zone field) and BPAD Protected as the value raster. The result gives you the mean percent protected in the nine county San Francisco Bay Area Region, California at the watershed level in a table that you can join back to the CalWater GIS layer and then symbolize as a graduated color with the mean being the value field. This analysis was done by the Conservation Lands Network Fish and Riparian Focus Team. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Protected Areas in Watersheds: San Francisco Bay Area, California, 2009. Bay Area Open Space Council. Available at http://purl.stanford.edu/wh281bw1148. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  3. Title: Fire Rotation: San Francisco Bay Area, California, 2004

    • 2011
    Contributors:

    Summary: This raster dataset depicts fire rotation class intervals calculated from 1950-2003 fire history on land areas grouped into strata based on fire environment conditions for the nine county San Francisco Bay Area Region, California. These strata are defined by vegetation, climate, direct protection agency and elevation. The fire rotation interval is the expected number of years it would take, based on past fire rates, to burn an area equivalent to that of a given stratum. Fire rotation interval for a given stratum is calculated by dividing the mean annual number of acres burned into the total area of the stratum. Finally, fire rotation values are grouped into classes. The larger fire rotation values correspond to less frequent burning. In contrast the higher the rotation class value is, the more frequent fire is in that stratum. The source data was compiled by the California Department of Forestry and Fire Protection and the United States Department of Agriculture Forest Service. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Fire Rotation: San Francisco Bay Area, California, 2004. Bay Area Open Space Council. Available at: http://purl.stanford.edu/tw527tc9048 Source metadata and data available at: http://frap.fire.ca.gov/data/frapgisdata-subset.php This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  4. Title: Shrew Mole Range (Reverse Polygon Mask): San Francisco Bay Area, California, 2008

    • 2011
    Contributors:

    Summary: This polygon shapefile depicts the range map the American shrew mole (Neurotrichus gibbsii) that were pulled out and then reversed so the polygon represents areas outside of their range. This creates a mask so the actual species ranges can be shown while the area outside of its range can be masked out. Vector datasets are a component of the California Wildlife Habitat Relationships (CWHR) range maps, a comprehensive information system and predictive model for California's wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution and habitat relationships for 694 species of amphibians, reptiles, birds and mammals known to occur regularly in the state. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Shrew Mole Range (Reverse Polygon Mask): San Francisco Bay Area, California, 2008. Bay Area Open Space Council. Available at http://purl.stanford.edu/rz419vp0242. The following information describes, and should always accompany, the California Department of Fish and Game's California Wildlife Habitat Relationship System (CWHR) species distribution data. The data is organized into four folders according to the four major taxonomic groups in CWHR: amphibians, reptiles, birds and mammals. Each species is represented by a single shapefile and is named according to its 4 digit alpha-numeric CWHR ID code. The file lookup.xls contains a record for each species including its CWHR ID, scientific name, common name, and range map revision history. Each layer contains two attributes: a season code and a SHAPE_NAME or CWHR ID code. Season codes include S for summer-only, W for winter-only, and Y for yearlong. A few species have a migration-only stopover location mapped and represented with an "M". The CWHR System software contains species predictions for migration-only locations, yet most of these are not mapped. The CWHR species range maps are continually being reviewed and updated as new animal occurrence data becomes available, especially in digital format. While the original maps were digitized from 1:5,000,000 scale depictions of range, a major revision effort started in 1995 to have maps reviewed and delineated by species-level experts at a scale of 1:1,000,000. Maps dated later than 1995 are therefore much more detailed and precise in their representation of a species' range. Increasingly, species-level experts and CWHR staff have made every effort, where justified by the distribution of known species observations or known habitat associations, to represent a species' range with standard polygons of major geographic features in California such as mountain ranges, valleys, buffered river corridors, and ecological subsections of California. The smallest units of the "Ecological subregions of California: section and subsection descriptions" (Miles and Goudy, 1997. USDA Forest Service Report No. R5-EM-TP-005) capture areas with very similar soils, vegetation, precipitation, geology, climate, and geography. In cases where a population of a species is known to be isolated, its point location is buffered to a minimum radius of 2 miles. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  5. Title: Rural Lands: San Francisco Bay Area, California, 2008

    • 2011
    Contributors:

    Summary: This polygon shapefile depicts rural lands in the nine county San Francisco Bay Area Region, California. This data was derived from the California Department of Conservation Farmland Mapping and Monitoring Program (FMMP) data. This dataset was developed to get a better regional understanding of the exurban sprawl issues in regions lying just beyond the suburbs of a city. The Conservation Lands Network (CLN) Project Team felt that parcels under ten acres generally resulted in more fragmented landscapes where conservation action is more challenging and biodiversity tends to be much lower. The dataset was developed by: 1) selecting out all parcels ten acres or less for each county; 2) eraising FMMP Urban Areas and Intensive Cultivated Land; 3) converting to a grid; 4) merging with a grid of the entire region to get 1,0 for null areas; and 5) running nearest neighbor statistcs type majority filter, rectangle neighbor, settings of 5, using the 1,0 field (this helps to fill in the road network and get rid of the streets in the congested areas). This data was integrated into the CLN Vegetation map as a new category for purposes of reducing the conservation goals in these areas. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Rural Lands: San Francisco Bay Area, California, 2008. Bay Area Open Space Council. Available at http://purl.stanford.edu/wr760cs8681. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  6. Title: Hydrologic Sub Area Watersheds: San Francisco Bay Area, California, 2009

    • 2011
    Contributors:

    Summary: This polygon shapefile depicts a dissolve that was run on the Hydrologic Sub Areas for the nine county San Francisco Bay Area Region, California. Hydrologic Sub Areas are those ranging in size from 195-243 square miles or 125,000-155,999 acres (Myers & Peltz-Lewis, 2004). This data was derived from the California Watershed Map (CalWater version 2.2), a set of standardized watershed boundaries meeting standardized delineation criteria. The hierarchy of watershed designations consists of six levels of increasing specificity: Hydrologic Region (HR), Hydrologic Unit (HU), Hydrologic Area (HA), Hydrologic Sub Area (HSA), Super Planning Watershed (SPWS) and Planning Watershed (PWS). The primary purpose of CalWater is the assignment of a single, unique code to a specific watershed polygon. Watersheds are useful for many aspects of the Project, including development of watershed integrity analysis. These data were critical for the Fish and Riparian Focus Team portion of the Project. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Hydrologic Sub Area Watersheds: San Francisco Bay Area, California, 2009. Bay Area Open Space Council. Available at http://purl.stanford.edu/fz945kn8985. Source metadata and data available at: http://frap.cdf.ca.gov/data/frapgisdata-sw-calwater_download.php This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  7. Title: Percent Slope (30m): San Francisco Bay Area, California, 2011

    • 2011
    Contributors:

    Summary: This raster dataset was derived from the 30 meter resolution Digital Elevation Model layer and depicts percent slope across the nine county San Francisco Bay Area Region, California. Slope is useful in a variety of analyses, including watershed integrity and identifying rugged terrain that is less susceptible to development. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Percent Slope (30m): San Francisco Bay Area, California, 2011. Bay Area Open Space Council. Available at http://purl.stanford.edu/rm437dj2771. United States Geological Survey National Map data: http://seamless.usgs.gov/ This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  8. Title: Highway Shields: San Francisco Bay Area, California, 2011

    • 2011
    Contributors:

    Summary: This point shapefile depicts location of Highway Shields for interstate, state and national highways in the nine county San Francisco Bay Area Region, California. This dataset was developed by the GreenInfo Network and is primarily used for cartography purposes. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Highway Shields: San Francisco Bay Area, California, 2011. Bay Area Open Space Council. Available at http://purl.stanford.edu/dv401gd2328. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  9. Title: Winter Steelhead Distribution: San Francisco Bay Area, California, 2007

    • 2011
    Contributors:

    Summary: The data was clipped to the Bay Area. Winter Steelhead Distribution (CalFish) June 2007 Version This polyline shapefile depicts observation-based, stream-level geographic distribution of anadromous steelhead trout (Oncorhynchus mykiss irideus) during winter months in the nine county San Francisco Bay Area Region, California. It was developed for the express purpose of assisting with steelhead recovery planning efforts. The distributions reported in this dataset were derived from a subset of the data contained in the Aquatic Species Observation Database (ASOD), a Microsoft Access multi-species observation data capture application. ASOD is an ongoing project designed to capture as complete a set of statewide inland aquatic vertebrate species observation information as possible. ASOD observation data were used to develop a network of stream segments. These lines are developed by "tracing down" from each observation to the sea using the flow properties of United States Geological Survey National Hydrography Dataset (NHD) High Resolution hydrography. Lastly these lines, representing stream segments, were assigned a value of either Anad Present (Anadromous present) or Unsp Present (Unspecified O. mykiss present). The resulting layer consists of a set of lines representing the winter distribution of steelhead. This dataset represents stream reaches that are known or believed to be used by steelhead based on steelhead observations, thus, it contains only positive steelhead occurrences. The absence of distribution on a stream does not necessarily indicate that steelhead do not utilize that stream. Additionally, steelhead may not be found in all streams or reaches each year. This is due to natural variations in run size, water conditions and other environmental factors. The information in this dataset should be used as an indicator of steelhead presence/suspected presence at the time of the observation as indicated by the 'Late_Yr' (Latest Year) field attribute. The line features in the dataset may not represent the maximum extent of steelhead on a stream; rather it is important to note that this distribution most likely underestimates the actual distribution of steelhead. The individual observations may not have occurred at the upper extent of anadromous occupation. In addition, no attempt was made to capture every observation, so it should not be assumed that this dataset is complete for each stream. No additional data (habitat mapping, barriers data, gradient modeling, etc.) were utilized to either add to or validate the data. It is very possible that an anadromous observation in this dataset has been recorded above (upstream of) a barrier as identified in the Passage Assessment Database (PAD). In the future, we hope to perform a comparative analysis between this dataset and the PAD to identify and resolve all such discrepancies. Such an analysis will add rigor to and help validate both datasets. This dataset has recently undergone a review. Data source contributors as well as California Department of Fish and Wildlife (CDFW) fisheries biologists were provided the opportunity to review and suggest edits or additions during the review. Initially, data contributors were notified and invited to review and comment on the handling of the information that they provided. The distribution was then posted to an intranet mapping application and CDFW biologists were provided an opportunity to review and comment on the dataset. During this review, biologists were also encouraged to add new observation data. This resulting final distribution contains their suggestions and additions. Please refer to "Use Constraints" section below. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Winter Steelhead Distribution: San Francisco Bay Area, California, 2007. Bay Area Open Space Council. Available at http://purl.stanford.edu/jw390yx2678. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  10. Title: Fog Shrew Range (Reverse Polygon Mask): San Francisco Bay Area, California, 2008

    • 2011
    Contributors:

    Summary: This polygon shapefile depicts the range map the fog shrew (Sorex sonomae) that were pulled out and then reversed so the polygon represents areas outside of their range. This creates a mask so the actual species ranges can be shown while the area outside of its range can be masked out. Vector datasets are a component of the California Wildlife Habitat Relationships (CWHR) range maps, a comprehensive information system and predictive model for California's wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution and habitat relationships for 694 species of amphibians, reptiles, birds and mammals known to occur regularly in the state. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Fog Shrew Range (Reverse Polygon Mask): San Francisco Bay Area, California, 2008. Bay Area Open Space Council. Available at http://purl.stanford.edu/bk113kj6195. The following information describes, and should always accompany, the California Department of Fish and Game's California Wildlife Habitat Relationship System (CWHR) species distribution data. The data is organized into four folders according to the four major taxonomic groups in CWHR: amphibians, reptiles, birds and mammals. Each species is represented by a single shapefile and is named according to its 4 digit alpha-numeric CWHR ID code. The file lookup.xls contains a record for each species including its CWHR ID, scientific name, common name, and range map revision history. Each layer contains two attributes: a season code and a SHAPE_NAME or CWHR ID code. Season codes include S for summer-only, W for winter-only, and Y for yearlong. A few species have a migration-only stopover location mapped and represented with an "M". The CWHR System software contains species predictions for migration-only locations, yet most of these are not mapped. The CWHR species range maps are continually being reviewed and updated as new animal occurrence data becomes available, especially in digital format. While the original maps were digitized from 1:5,000,000 scale depictions of range, a major revision effort started in 1995 to have maps reviewed and delineated by species-level experts at a scale of 1:1,000,000. Maps dated later than 1995 are therefore much more detailed and precise in their representation of a species' range. Increasingly, species-level experts and CWHR staff have made every effort, where justified by the distribution of known species observations or known habitat associations, to represent a species' range with standard polygons of major geographic features in California such as mountain ranges, valleys, buffered river corridors, and ecological subsections of California. The smallest units of the "Ecological subregions of California: section and subsection descriptions" (Miles and Goudy, 1997. USDA Forest Service Report No. R5-EM-TP-005) capture areas with very similar soils, vegetation, precipitation, geology, climate, and geography. In cases where a population of a species is known to be isolated, its point location is buffered to a minimum radius of 2 miles. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  11. Title: Coho Salmon Watersheds: San Francisco Bay Area, California, 2011

    • 2011
    Contributors:

    Summary: This polygon shapefile depicts the Coho Salmon Priority Restoration Areas in the nine county San Francisco Bay Area Region, California, as defined by the National Oceanic and Atmospheric Administration (NOAA), National Marine Fisheries Service (NMFS), Southwest Region, North-Central California Coast Recovery Team. These areas cover the North-Central California Coast Recovery Domain and are pertinent for the Central California Coast Coho Salmon Evolutionarily Significant Unit (ESU). Once a species is listed as a threatened or endangered, the Endangered Species Act mandates that a Recovery Plan be developed and implemented. The Recovery Plan guides implementation of actions to recover the species by resolving the threats to it and ensuring self-sustaining populations in the wild. The polygons in this layer depict the areas identified as: "Core" (Subwatersheds with persisting populations of coho salmon. Maintaining Core areas is essential for preventing the extinction of CCC coho salmon and these Core areas are targeted for immediate threat abatement and enhancement and restoration actions.); Phase 1 (Areas outside of Core subwatersheds, designated as necessary for recovery actions to expand current populations); and Phase 2 (Areas outside of Core subwatersheds, typically more degraded than Core and Phase I areas. Restoring watershed processes and preventing further degradation will likely take an extended period of time in these areas). This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Coho Salmon Watersheds: San Francisco Bay Area, California, 2011. Bay Area Open Space Council. Available at http://purl.stanford.edu/ff359cr8805. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  12. Title: Ponds Gap Analysis: San Francisco Bay Area, California, 2011

    • 2011
    Contributors:

    Summary: This polygon shapefile depicts pond areas data compiled from the National Wetlands Inventory (NWI) and the National Hydrography Dataset (NHD). The type field used for NWI is "freshwater ponds" and NHD is "lake or pond." Ponds are key habitats for several target species (California red-legged frog, California tiger salamander, and Western/Northwestern pond turtle), so it is important to include a large number of ponds in the Conservation Lands Network. The absolute number of ponds for each landscape unit is assumed to be a first-order determinant of potential metapopulation persistence. To evaluate whether the Coarse Filter Conservation Lands Network included a sufficient number of ponds as well as networks of ponds in each landscape unit, a gap analysis of the nine county San Francisco Bay Area Region, California freshwater ponds was conducted. The gap analysis also allowed for the assessment of local needs for supporting viable metapopulations (spatially separated subpopulations) of pond-dependent conservation targets. The gap analysis identified ponds that fall within currently protected lands (BPAD 2010) and the Coarse Filter Conservation Lands Network and was used during the Amphibian, Reptile, and Invertebrate Project Team. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Ponds Gap Analysis: San Francisco Bay Area, California, 2011. Bay Area Open Space Council. Available at http://purl.stanford.edu/mb821pm2174. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  13. Title: Fire Threats: San Francisco Bay Area, California, 2004

    • 2011
    Contributors:

    Summary: This raster dataset depicts fire threats as a combination of two factors for the nine county San Francisco Bay Area Region, California: 1) the likelihood of a given area burning (frequency), and 2) potential fire behavior (hazard). These two factors are combined to create four threat classes ranging from moderate to extreme. The source data was compiled by the California Department of Forestry and Fire Protection. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Fire Threats: San Francisco Bay Area, California, 2004. Bay Area Open Space Council. Available at http://purl.stanford.edu/qw462wc5018. Source metadata and data available at: http://frap.fire.ca.gov/data/frapgisdata-subset.php This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  14. Title: Urban Lands: San Francisco Bay Area, California, 2008

    • 2011
    Contributors:

    Summary: This polygon shapefile depicts urban areas in the nine county San Francisco Bay Area Region, California. This data comes directly from the California Farmland Mapping and Monitoring Program. The Bay Area counties are merged into a Bay Area dataset. The Urban category was extracted for each county to create this dataset. Urban and Built Up Land (D) Urban is an important layer in the development of the CLN. These areas became part of the "Converted" lands and were extracted out of the final CLN. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Urban Lands: San Francisco Bay Area, California, 2008. Bay Area Open Space Council. Available at http://purl.stanford.edu/np970xw2451. California Department of Conservation Farmland Mapping and Monitoring Program data: http://www.consrv.ca.gov/DLRP/fmmp/Pages/index.aspx This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  15. Title: Grazing Lands: San Francisco Bay Area, California, 2008

    • 2011
    Contributors:

    Summary: This polygon shapefile depicts grazing lands in the nine county San Francisco Bay Area Region, California. This data was derived from the California Department of Conservation Farmland Mapping and Monitoring Program (FMMP) data. The counties were merged into one dataset. The Grazing category was extracted from each county to create this dataset. Attributes are as follow: Grazing Land (G). It should be noted that each county maps each FMMP cateogory a bit differently, and therefore grazing may be defined differently by each county. This dataset was used more to get a sense of the overall scale of Grazing Lands in the region versus specific areas or acreages. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Grazing Lands: San Francisco Bay Area, California, 2008. Bay Area Open Space Council. Available at http://purl.stanford.edu/np273vh4844. California Department of Conservation Farmland Mapping and Monitoring Program data: http://www.consrv.ca.gov/DLRP/fmmp/Pages/index.aspx This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  16. Title: Brush Mouse Range (Reverse Polygon Mask): San Francisco Bay Area, California, 2008

    • 2011
    Contributors:

    Summary: This polygon shapefile depicts the range map the Brush Mouse (Peromyscus boylii) that were pulled out and then reversed so the polygon represents areas outside of their range. This creates a mask so the actual species ranges can be shown while the area outside of its range can be masked out. Vector datasets are a component of the California Wildlife Habitat Relationships (CWHR) range maps, a comprehensive information system and predictive model for California's wildlife. The CWHR System was developed to support habitat conservation and management, land use planning, impact assessment, education and research involving terrestrial vertebrates in California. CWHR contains information on life history, management status, geographic distribution and habitat relationships for 694 species of amphibians, reptiles, birds and mammals known to occur regularly in the state. Range maps represent the maximum, current geographic extent of each species within California. They were originally delineated at a scale of 1:5,000,000 by species-level experts and have gradually been revised at a scale of 1:1,000,000. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Brush Mouse Range (Reverse Polygon Mask): San Francisco Bay Area, California, 2008. Bay Area Open Space Council. Available at http://purl.stanford.edu/np346tt1865. The following information describes, and should always accompany, the California Department of Fish and Game's California Wildlife Habitat Relationship System (CWHR) species distribution data. The data is organized into four folders according to the four major taxonomic groups in CWHR: amphibians, reptiles, birds and mammals. Each species is represented by a single shapefile and is named according to its 4 digit alpha-numeric CWHR ID code. The file lookup.xls contains a record for each species including its CWHR ID, scientific name, common name, and range map revision history. Each layer contains two attributes: a season code and a SHAPE_NAME or CWHR ID code. Season codes include S for summer-only, W for winter-only, and Y for yearlong. A few species have a migration-only stopover location mapped and represented with an "M". The CWHR System software contains species predictions for migration-only locations, yet most of these are not mapped. The CWHR species range maps are continually being reviewed and updated as new animal occurrence data becomes available, especially in digital format. While the original maps were digitized from 1:5,000,000 scale depictions of range, a major revision effort started in 1995 to have maps reviewed and delineated by species-level experts at a scale of 1:1,000,000. Maps dated later than 1995 are therefore much more detailed and precise in their representation of a species' range. Increasingly, species-level experts and CWHR staff have made every effort, where justified by the distribution of known species observations or known habitat associations, to represent a species' range with standard polygons of major geographic features in California such as mountain ranges, valleys, buffered river corridors, and ecological subsections of California. The smallest units of the "Ecological subregions of California: section and subsection descriptions" (Miles and Goudy, 1997. USDA Forest Service Report No. R5-EM-TP-005) capture areas with very similar soils, vegetation, precipitation, geology, climate, and geography. In cases where a population of a species is known to be isolated, its point location is buffered to a minimum radius of 2 miles. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  17. Title: Coarse Filter Vegetation Map: San Francisco Bay Area, California, 2006

    • 2011
    Contributors:

    Summary: This raster dataset depicts a final version of the Coarse Filter Vegetation Map as a 30 meter grid with 61 cover types, 51 of which are natural or semi-natural land cover, for the nine county San Francisco Bay Area Region, California. See Resource Details for detailed data compilation description. This data was compiled from data sourced from the United States Department of Agriculture Forest Service, The Nature Conservancy and the California Department of Forestry and Fire. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Coarse Filter Vegetation Map: San Francisco Bay Area, California, 2006. Bay Area Open Space Council. Available at: http://purl.stanford.edu/np749xc3306 This is the vegetation dataset created specifically for the Upland Habitat Goals Project. The coarse filter vegetation targets were generated from this dataset. For a full description of the development of the coarse filter vegetation map along with helpful maps and graphics, see chapter 5 (Coars Filter and Vegetation Representation Analysis) in the final report. The first challenge faced by the Vegetation Focus Team was the lack of a consistent vegetation map covering the region. The team's preferred vegetation classification system was Manual of California Vegetation (Sawyer et.al. 2009) (MCV) because of the detail it provides. But, only a few areas within the Upland Habitat Goals Study Area have been mapped using MCV. An alternative vegetation classification system developed by the US Forest Service, CalVeg, covers almost the entire region but has some spatial inaccuracies and lacks sufficient detail for annual grasslands, shrub communities, riparian corridors, and isolated wetlands. The Vegetation Focus Team agreed to use a modified version of CalVeg, referred to as the Upland Habitat Goals Coarse Filter Vegetation Map, which provided adequate and consistent coverage for the full study area. The Coarse Filter Vegetation Map is a composite of several data sources: 1. The USDA Forest Service CalVeg Vegetation Map (CalVeg). CalVeg is the primary source of the vegetation data. 2. The Nature Conservancy's Composite Vegetation Map (TNC Composite). Developed by the Nature Conservancy for the Central Coast Ecoregional Plan, this composite of the California Department of Forestry Hardwoods and GAP (Holland 1986) was used to fill in two gaps in coverage by CalVeg. 3. The California Department of Forestry and Fire Multi-Source Vegetation Map (CDF Multi-Source). This composite of the California Department of Forestry Hardwoods, the Department of Conservation Farmland Mapping and Monitoring Program (FMMP), and the Department of Fish and Game California Vernal Pool Assessment was used to fill in a gap in CalVeg coverage in the Suisun Marsh region of Solano County. Starting with this composite vegetation map, the team made two primary enhancements. First, a serpentine geology layer from the USDA Natural Resources Conservation Service (NRCS) State Soil Geographic (STATSGO) Database was added to capture the unique vegetation types found on serpentine soils. Second, a climatic stratification was used to differentiate the approximately one million acres identified as Annual Grasslands in CalVeg. These grasslands were separated into Cool, Moderate, Warm, and Hot Grasslands based on July maximum temperatures established by PRISM (800-meter scale Parameter-elevation Regressions on Independent Slopes Model), a climate mapping system developed at Oregon State University. Figure 5.2 illustrates these temperature stratifications. Riparian Vegetation Riparian areas pose special challenges at the regional scale of the Upland Habitat Goals Project. While the Coarse Filter Vegetation Map captures the larger patches of riparian forests as mapped by CalVeg, it misses the many narrow ribbons of remnant riparian habitat. It also fails to capture the complex mix of local and watershed-scale processes operating in riparian areas, which are critical to biodiversity for all species groups. To capture these smaller riparian areas, the USGS National Hydrologic Database (NHD) was used in the fine filter process to define stream corridors with riparian habitat potential; the streams are included in the final Conservation Lands Network. Converted Lands The last step in the development of the Coarse Filter Vegetation Map added the Farmland Mapping and Monitoring Program (FMMP) Urban and Cultivated Agricultural data, and identified rural residential parcels less than 10 acres. Appendix B: Chapter 5 describes how the Rural Residential 10 data layer was created. The FMMP data was more current (2008) than similar land use types in CalVeg, and rural residential parcels are typically found on the urban fringe and of lower conservation suitability. Collectively, these areas are referred to as "Converted Lands" and are illustrated in Figure 5.3. Converted Lands were occasionally selected by Marxan for inclusion in the Conservation Lands Network if they contained conservation targets needed to meet the 90%, 75%, or 50% goals, or the 247-acre hexagon included 10% or more of protected lands. As noted in Chapter 4, lands over-selected by Marxan were removed except for the location of the target. Riparian Vegetation Riparian areas pose special challenges at the regional scale of the Upland Habitat Goals Project. While the Coarse Filter Vegetation Map captures the larger patches of riparian forests as mapped by CalVeg, it misses the many narrow ribbons of remnant riparian habitat. It also fails to capture the complex mix of local and watershed-scale processes operating in riparian areas, which are critical to biodiversity for all species groups. To capture these smaller riparian areas, the USGS National Hydrologic Database (NHD) was used in the fine filter process to define stream corridors with riparian habitat potential; the streams are included in the final Conservation Lands Network. Converted Lands The last step in the development of the Coarse Filter Vegetation Map added the Farmland Mapping and Monitoring Program (FMMP) Urban and Cultivated Agricultural data, and identified rural residential parcels less than 10 acres. Appendix B: Chapter 5 describes how the Rural Residential 10 data layer was created. The FMMP data was more current (2008) than similar land use types in CalVeg, and rural residential parcels are typically found on the urban fringe and of lower conservation suitability. Collectively, these areas are referred to as "Converted Lands" and are illustrated in Figure 5.3. Converted Lands were occasionally selected by Marxan for inclusion in the Conservation Lands Network if they contained conservation targets needed to meet the 90%, 75%, or 50% goals, or the 247-acre hexagon included 10% or more of protected lands. As noted in Chapter 4, lands over-selected by Marxan were removed except for the location of the target. Riparian Vegetation Riparian areas pose special challenges at the regional scale of the Upland Habitat Goals Project. While the Coarse Filter Vegetation Map captures the larger patches of riparian forests as mapped by CalVeg, it misses the many narrow ribbons of remnant riparian habitat. It also fails to capture the complex mix of local and watershed-scale processes operating in riparian areas, which are critical to biodiversity for all species groups. To capture these smaller riparian areas, the USGS National Hydrologic Database (NHD) was used in the fine filter process to define stream corridors with riparian habitat potential; the streams are included in the final Conservation Lands Network. Converted Lands The last step in the development of the Coarse Filter Vegetation Map added the Farmland Mapping and Monitoring Program (FMMP) Urban and Cultivated Agricultural data, and identified rural residential parcels less than 10 acres. Appendix B: Chapter 5 describes how the Rural Residential 10 data layer was created. The FMMP data was more current (2008) than similar land use types in CalVeg, and rural residential parcels are typically found on the urban fringe and of lower conservation suitability. Collectively, these areas are referred to as "Converted Lands" and are illustrated in Figure 5.3. Converted Lands were occasionally selected by Marxan for inclusion in the Conservation Lands Network if they contained conservation targets needed to meet the 90%, 75%, or 50% goals, or the 247-acre hexagon included 10% or more of protected lands. As noted in Chapter 4, lands over-selected by Marxan were removed except for the location of the target. Riparian Vegetation Riparian areas pose special challenges at the regional scale of the Upland Habitat Goals Project. While the Coarse Filter Vegetation Map captures the larger patches of riparian forests as mapped by CalVeg, it misses the many narrow ribbons of remnant riparian habitat. It also fails to capture the complex mix of local and watershed-scale processes operating in riparian areas, which are critical to biodiversity for all species groups. To capture these smaller riparian areas, the USGS National Hydrologic Database (NHD) was used in the fine filter process to define stream corridors with riparian habitat potential; the streams are included in the final Conservation Lands Network. Converted Lands The last step in the development of the Coarse Filter Vegetation Map added the Farmland Mapping and Monitoring Program (FMMP) Urban and Cultivated Agricultural data, and identified rural residential parcels less than 10 acres. Appendix B: Chapter 5 describes how the Rural Residential 10 data layer was created. The FMMP data was more current (2008) than similar land use types in CalVeg, and rural residential parcels are typically found on the urban fringe and of lower conservation suitability. Collectively, these areas are referred to as "Converted Lands" and are illustrated in Figure 5.3. Converted Lands were occasionally selected by Marxan for inclusion in the Conservation Lands Network if they contained conservation targets needed to meet the 90%, 75%, or 50% goals, or the 247-acre hexagon included 10% or more of protected lands. As noted in Chapter 4, lands over-selected by Marxan were removed except for the location of the target. United States Department of Agriculture Forest Service Vegetation Classification and Mapping (CalVeg Mapping Zones): http://www.fs.usda.gov/detail/r5/landmanagement/resourcemanagement/?cid=stelprdb5347192 The Nature Conservancy Landfire data: http://www.landfiredataviewer.tnc.org/ California Fire Resource and Assessment Program data (FVEG): http://frap.cdf.ca.gov/data/frapgisdata-subset.php This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  18. Title: Williamson Act Contracted Lands: San Francisco Bay Area, California, 2006

    • 2011
    Contributors:

    Summary: The polygon shapefile identifies parcels within the nine county San Francisco Bay Area Region, California which are accurate identifications of Williamson Act contracted land for the California Open Space Subvention Act Program in Fiscal Year 2006-2007. Refer to Resource Quality entries for attribute table field definitions. The Williamson Act dataset represents parcels within a county with a Type I (a.k.a. "Prime"), Type II (a.k.a. "Sub-Prime") or Open Space Type II Williamson Act (WA). This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Williamson Act Contracted Lands: San Francisco Bay Area, California, 2006. Bay Area Open Space Council. Available at http://purl.stanford.edu/hb456ch5128. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Williamson Act Contracted Lands: San Francisco Bay Area, California, 2006. Bay Area Open Space Council. Available at: PURL This data set based on rectified SCGISDB2.BASE.PAR_PARCELS exported on 07/03/06 (layer resides in S:\GIS-DATA\PRMD_BASE\Superceded Parcel Base\Export SDE Parcels 07032006.shp). This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  19. Title: Unincorporated Cities: San Francisco Bay Area, California, 2010

    • 2011
    Contributors:

    Summary: This polygon shapefile depicts unincorporated cities in the nine county San Francisco Bay Area Region, California. This data was compiled by the GreenInfo Network from the United States Census Bureau Topologically Integrated Geographic Encoding and Referencing GIS database called TIGER/Line,as well as different data from County and City agencies. Data was merged together into one file. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Unincorporated Cities: San Francisco Bay Area, California, 2010. Bay Area Open Space Council. Available at http://purl.stanford.edu/pm866wk9581. This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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  20. Title: Planning Watersheds: San Francisco Bay Area, California, 2009

    • 2011
    Contributors:

    Summary: This polygon shapefile depicts a dissolve that was run on the planning watersheds for the nine county San Francisco Bay Area Region, California. Planning Watersheds are those ranging in size from 5-79 square miles or 3,000-49,999 acres (Myers & Peltz-Lewis, 2004). This data was derived from the California Watershed Map (CalWater version 2.2), a set of standardized watershed boundaries meeting standardized delineation criteria. The hierarchy of watershed designations consists of six levels of increasing specificity: Hydrologic Region (HR), Hydrologic Unit (HU), Hydrologic Area (HA), Hydrologic Sub Area (HSA), Super Planning Watershed (SPWS), and Planning Watershed (PWS). The primary purpose of CalWater is the assignment of a single, unique code to a specific watershed polygon. Watersheds are useful for many aspects of the Project, including development of watershed integrity analysis. These data were critical for the Fish and Riparian Focus Team portion of the Project. This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California. Bay Area Open Space Council, GreenInfo Network, Conservation Lands Network, and San Francisco Bay Area Upland Habitat Goals Project. (2011). Planning Watersheds: San Francisco Bay Area, California, 2009. Bay Area Open Space Council. Available at http://purl.stanford.edu/vw572ch1218. Source metadata and data available at: http://frap.cdf.ca.gov/data/frapgisdata-sw-calwater_download.php This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.

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