Western Field Ornithologists 20080101 Bird Species of Special Concern [ds463] vector digital data Western Foundation of Vertebrate Zoology 439 Calle San Pablo Camarillo, CA 93012 www.westernfieldornithologists.org ftp://ftp.dfg.ca.gov/BDB/GIS/BIOS/Public_Datasets/400_499/ds463.zip http://bios.dfg.ca.gov/ This data set is an intersection of all 63 vector polygon ranges depicted in the following publication with a statewide grid of 25 square mile hexagon cells. Shuford, W.D., and Gardali, T., editors. 2008. California Bird Species of Special Concern: A ranked assessment of species, subspecies, and distinct populations of birds of immediate conservation concern in California. Studies of Western Birds 1. Western Field Ornithologists, Camarillo, California, and California Department of Fish and Game. Sacramento. http://www.dfg.ca.gov/wildlife/species/ssc/birds.html The vector polygon ranges were hand drawn at a scale of 1:6,600,000 by authors and editors of the Bird Species of Special Concern report and digitized into shapefiles by staff of the Biogeographic Data Branch, California Department of Fish and Game. The hexagon grid for the state was created by Steve Goldman by modifying an AML (Arc Macro Language) script originally written by Eric Kauffman. The intersection of the range maps with fine-scale hexagon cells allows for a rapid query of any portion of the state for the presence of taxa that are Bird Species of Special Concern. The resulting table lists all taxa whose ranges intersect the selected area and includes the attributes of each intersected polygon for a taxa (whether the area selected is part of the current breeding range for a species or intersects its historic range or a record of uncertainty, for example). Details regarding the mapping process for the 63 ranges may be found on pages 16-18 of the publication cited above. Ranges were hand drawn at a scale of 1:6,600,000 and then digitized after a team of mappers from the Bird Species of Special Concern (BSSC) project evaluated but ultimately rejected the range mapping protocol of the California Wildlife Habitat Relationships (CWHR) System, which calls for delineating a range at a scale of 1:1,000,000 and favors the use of standarized ecological unit boundaries. Expert review of a BSSC range for a species was later applied to the CWHR data set using the mapping standards of CWHR. A comparison of the two range maps for a species will show differences, but only due to the different mapping protocols of BSSC and CWHR. For example, users may notice that the same range polygon is present for a species in both data sets, but the boundary is complex in the CWHR data because of it represents a preexisting digitized ecological subsection and smooth in the BSSC data set because it has been hand drawn and then digitized. Also, polygons representing historic range are mapped in BSSC but not in CWHR. Polygons representing a portion of the range not of BSSC concern for a species - such as the winter range of a breeding species - are mapped in CWHR but not in BSSC. 20080101 publication date Complete As needed -125.486694 -113.450103 42.150148 32.071365 None Bird Species of Special Concern Hexagon Intersect ISO 19115 Topic Category biota environment None California None 2008 Dataset accessible to the public through the BIOS viewer. For any requests of this dataset please see the Metadata Reference contact. Contact authors. Western Field Ornithologists W. D. Shuford c/o Western Foundation of Vertebrate Zoology mailing
439 Calle San Pablo
Camarillo CA 93012 439 Calle San Pablo Camarillo, CA 93012 California Department of Fish and Wildlife Neil Clipperton physical Sacramento CA 95811 916-445-9753 Neil.Clipperton@wildlife.ca.gov Western Field Ornithologists W. D. Shuford c/o Western Foundation of Vertebrate Zoology mailing
439 Calle San Pablo
Camarillo CA 93012 439 Calle San Pablo Camarillo, CA 93012 Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.1.4959 Edited original metadata by adding ISO keywords. 20090126 California Department of Fish and Game Greg Ewing bios@dfg.ca.gov Vector GT-polygon composed of chains 9056 NAD 1983 California Teale Albers 34.0 40.5 -120.0 0.0 0.0 -4000000.0 coordinate pair 0.000000003754707655900803 0.000000003754707655900803 meter D North American 1983 GRS 1980 6378137.0 298.257222101 ds463 FID Internal feature number. Esri Sequential unique whole numbers that are automatically generated. HEX25_ID Unique value for identifying each 25 square mile hexagon. SHAPE Feature geometry. ESRI Coordinates defining the features. sde_proj_bios.SDT.DS0463EX1_20090224 OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. HEX25_ID Unique value for identifying each 25 square mile hexagon. COMNAME The common name of the species, subspecies or population. SCINAME The scientific name of the species, subspecies or population. CURRENTR A "1" is present if the polygon is part of the current range. HISTORIC A "1" is present if the polygon is part of the historic range. YEAR_ROUND A "1" is present if the polygon represents year-round range. WINTERING A "1" is present if the polygon represents wintering range. BREEDING A "1" is present if the polygon represents breeding range. 20160302 FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time