This data layer represents areas where final critical habitat for Contra Costa goldfields (vernal pool plant) in the Russian River watershed. Features from the original source data (see Originator information) were selected based on their spatial location within the Russian River watershed in Sonoma and Mendocino counties in California (the study area boundary of the Russian River Watershed Adaptive Management Plan project). This metadata file incorporates much of the information that was available in the metadata of the original source data. This information is indicated in quotation marks. " These data identify, in general, the areas where final critical habitat for Contra Costa goldfields (vernal pool plant) occur."
This data layer was edited from its original source data set for inclusion in the Russian River Watershed Adaptive Management Plan (RRWAMP) and RRWAMP Baseline Watershed Assessment project. The intended use of this data layer in this project is to examine landscape or human factors to promote ecological health and sustainability within the Russian River watershed. "To provide the user with a general idea of areas where final critical habitat for Contra Costa goldfields (vernal pool plant) occur. "
"Contra Costa goldfields is one of the 15 vernal pool species: Butte County meadowfoam (Limnanthes floccosa ssp. californica), Colusa grass (Neostapfia colusana), Conservancy fairy shrimp (Branchinecta conservatio), Contra Costa goldfields (Lasthenia conjugens), Greene's tuctoria (Tuctoria greenei), hairy orcutt grass (Orcuttia pilosa), Hoover's spurge (Chamaesyce hooveri), longhorn fairy shrimp (Branchinecta longiantenna), Sacramento Orcutt grass (Orcuttia viscida), San Joaquin Valley Orcutt grass (Orcuttia inaequalis), slender Orcutt grass (Orcuttia tenuis), Solano grass (Tuctoria mucronata), succulent owl's-clover (Castilleja campestris ssp. succulenta), vernal pool fairy shrimp (Branchinecta lynchi), and vernal pool tadpole shrimp (Lepidurus packardi)."
publication date
The user assumes the entire risk related to the use of this data. The developers of this project shall not have any liability to any person or entity with respect to loss or damage caused or alleged to be caused directly or indirectly by information contained in this file. The developers of this project make no warranty, expressed or implied, nor does the fact of distribution of this data constitute such warranty. This data is not for navigational purposes or for use in litigation. In all cases, the user should refer to the original source data and metadata for accuracy, currentness and appropriate contact information. " These data are intended to be used as a guide to identify the general areas where final critical habitat for Contra Costa goldfields (vernal pool plant) occur. Specific identity of critical habitat should be obtained from the text of the designation of final critical habitat for the 15 vernal pool species, including Contra Costa goldfields, published in: Federal Register, February 10, 2006, vol. 71, no. 28, pages 7117-7316."
2800 Cottage Way, Room W-2605
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Data were checked for spatial/geographic logic and consistency.
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This data layer was created for the Russian River Watershed Adaptive Management Plan (RRWAMP) and RRWAMP Baseline Watershed Assessment project through minor editing to the original source data. Data were clipped to the project study area boundary (rr_watershed_bndy.shp) and projected using ESRI's ArcGIS GeoProcessing tools; and renamed to the current file name.
3909 Halls Ferry Road
"Process Description: We (U.S. Fish and Wildlife Service biologists) identified the critical habitat areas by using many spatial data layers derived from a variety of Federal, State, and local agencies, and from private organizations and individuals. We identified the general vernal pool areas on which to focus our critical habitat designations based on discussions with local species experts and information in our files. To identify where vernal pool species and habitats occur we evaluated GIS data of vernal pool habitats by Holland (1998 and 2002), and species occurrences information from the 2001 California Natural Diversity Database (CNDDB 2001), University of California Riverside species database (UCR 2000), USFWS species occurrence database 2002, and unpublished species occurrence data in our files. We superimposed the vernal pool habitats with the species occurrence data over satellite images (Systeme Probatoire, d'Observation de la Terre [SPOT imagery], CNES/SPOT Image Corporation 1993-2000), and over 1-meter digital ortho-rectified photography in southern California (Emerge Corporation 2001). The use of SPOT imagery allowed us to identify landmarks such as roads, cities, rivers, and urban areas. Because of limitations of the Holland data and SPOT imagery on accurately identifying the extent of the vernal pool areas, we were required to refine the area boundaries based on additional GIS data layers. When necessary and available we used data which included soils information from the Soil Survey Geographic (SSURGO) databases (U.S. Department of Agriculture [USDA] 1998-2001), and the California State Soil Geographic (STATSGO) databases (USDA 1994). We used geologic and landform information developed by the California Department of Mines and Geology (CDMG, 2000) and Liss (2001). To identify the extent of flat or gently sloping topography where vernal pools are found we evaluated Digital Elevation Models from the U.S. Geologic Survey (2000). We also used a number of local GIS data sets for specific areas, including information developed through the Riverside Multiple Species HCP, Riverside County Flood Control (2002), and the Vernal Pools of Southern California Final Recovery Plan (Service 1998), habitat mapping for Butte County (EPA 1994), Tehama County (2001), Shasta County (2001), Placer County (Glazner 2001), Solano County (2000), Yolo County (1995), Sacramento County (1999), and San Joaquin County (2000) in California, and by the Rogue Valley Council of Governments in Oregon (Evans 2000). Other smaller scale mapping efforts were reviewed from Solano County Farmlands and Open Space (2000) and East Bay Regional Parks District (2001). The specific layers used and the methodology employed for each unit is described within the unit descriptions which are published in the Federal Register. The economic re-analysis projected economic impact that would result from designating critical habitat within the proposed units. Areas of vernal pool critical habitat falling within the twenty three Census 2000 tracts identified as having the greatest economic Surplus Lost were eliminated.. Final critical habitat legal descriptions were derived directly from the ArcGIS shapefile sketch properties table, listing the x and y coordinates of each polygon representing final critical habitat "
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Internal feature number.
ESRI
Feature geometry.
ESRI
U.S. Dept. of Interior organization code for Office that produced the critical habtitat
"Although these data have been processed successfully on a computer system at the U.S. Fish and Wildlife Service using the best available information, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. The U.S. Fish and Wildlife Service shall not be held liable for improper or incorrect use of the data described and/or contained herein."
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