Gordon Gould - California Department of Fish and Game 20050712 vector digital data http://bios.dfg.ca.gov ftp://ftp.dfg.ca.gov/BDB/GIS/BIOS/Public_Datasets/001_099/ds033.zip The data set represents the known observations of California red tree voles where each point represents a section where one or more voles have been found. Observations listed here were made from 1984 through 2000. There are a number of reports from literature of specimens taken included, but most of these lack a specific date that the animals were taken. However, most of these specimens were likely to have been taken in the late 1980's when there was a big effort made to clarify red tree vole taxonomy which led to the establishment of the California red tree vole as a separate species. Field biologists and foresters looked for and recorded tree vole nests while surveying forest habitats and in checking proposed timber harvest sites. Researchers trapped tree voles to determine the species' genetics and recorded the location of the trapping site. Likewise, some industrial timber companies surveyed for tree voles using live traps to document the occurrence of these voles on their lands. There are 448 records where each is a summary of one or more vole observations in a unique one-mile square section represented by those sections on USGS Quad. maps. Most records come from Humboldt and Mendocino counties though they are present in counties from Oregon through Sonoma County and inland in Siskiyou and Trinity counties. WHAT EACH RECORD REPRESENTS: Each record provides location information as to the smallest part of a section where all of the observations of tree voles in that section have been located. Also, there is information on when a tree vole was last seen at that described part of that section, and how many tree vole nests were seen and/or how many tree voles were capture during surveys or for specimens. A field showing land ownership has been only partially completed and each record also references the document number(s) for the substantiating report of the observation on file with the Department. The data base was designed to document the known observations of this species in California. It is meant to display the current known distribution and as a resource for land managers to determine if the vole might be is present on a project and of management interest. DATA ASSUMPTIONS AND LIMITATIONS: * Tree vole nests outside tree cavities could be identified by observers. * As observations were accumulated, they would begin to show the tree vole distribution and where the voles also might occur. KNOWN CAVEATS OF THE DATA: * These records do not constitute a complete distribution record; many tree vole locations are unknown or unreported. * The fields OBS_TYPE and ID_NO have incomplete data. If records with incomplete data have a 00/00/00 in the LAST_OBS field, these records are most likely to be of specimens taken. * Unless all of the observations in a section were made at a single point, the coordinates are likely to represent a generalized point, the center of that portion of the section shown in the location information for that record. WHO DID THE INITIAL DATA COMPILATION: The observation records were compiled by Department staff in the Bird and Mammal Conservation Program, Habitat Conservation Planning Branch. SPATIAL DATA CAPTURE METHODS: Descriptions and maps provided with records by the observers were plotted on USGS Quad. maps. UTMs in NAD 27 were taken from the maps and these coordinates were given accuracy codes depending on the specificity of the location information provided by the observers. NATIVE DATA FORMAT: The data displayed is one table a mixture of three tables currently in an Access database housed in the Wildlife and Habitat Data Analysis Branch. 19840101 20000101 ground condition Complete None planned -124.468941 -122.916958 42.014851 38.340079 ISO 19115 Topic Category biota environment None regulatory north-coast forests distribution sample incidental mammal California red tree vole special status species Arborimus pomo None California None The California Department of Fish and Wildlife is credited as the source of this data. California Department of Fish and Wildlife Scott Osborn Senior Environmental Scientist mailing and physical

1812 9th Street

Sacramento CA 95811 (916) 324-3564 Scott.Osborn@wildlife.ca.gov Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.4.0.5524 Edited original metadata by adding ISO keywords. 20070718 California Department of Fish and Game Kristina White bios@dfg.ca.gov Edited metadata by updating point of contact information. 20131106 California Department of Fish and Wildlife Sophie King geodata@wildlife.ca.gov Vector Entity point 448 Custom 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 ds33 California Red Tree Vole [ds33] SHAPE Feature geometry. ESRI Coordinates defining the features. FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. COUNTY County where voles were located. DNT Del Norte HUM Humboldt MEN Mendocino SIS Siskiyou SON Sonoma TRI Trinity LOCALE A specific topographical feature which best identifies the location of this observation. Where the location came from a description of the location using mileage, those descriptions are given using mileage from a cultural or topographical feature. MERIDIAN Township and range baseline and meridian system used for the legal description. H Humboldt M Mt. Diablo TOWNSHIP Township used in the legal description of the location for these observations. RANGE Range used in the legal description of the loction for these observations. SECTION Section used in the legal description of the location for these observations. QTRSECTION Half or quarter section of these observations. SXTNTHSEC Sixteenth or half-quarter section of these observations. SXFOURSEC Sixty-fourth or half-sixteenth section of these observations. ACCURACY Data compiler's assessment of the accuracy of the coordinates. 1 To a known point within an 80 meter radius 2 In a specific bounded area 3 In a non-specific bounded area 4 Within 0.2 mi radius 5 Within 0.4 mi radius 6 Within 0.6 mi radius 7 Within 0.8 mi radius 8 Within 1 mi radius 9 Within 5 mi radius UTMZONE UTM zone number. All observations are in zone 10. UTMNORTH UTM north coordinates (NAD27) of the section or portion of the section where the voles were found. UTMEAST UTM east coordinates (NAD27) of the section or portion of the section where the voles were found. QUAD USGS Quad. code using lat./long. code number. OBS_TYPE Observation type and number seen by type (e.g., N-3). Incomplete data. N Nest observed S Specimen take T Vole trapped OWNER Land owner of location where (and when) voles were found. May not correspond with the owner or the current landowner at the legal or UTM location provided due to the aggregation of sites by section. ARCO Arcata Redwood Company EEL Eel River Sawmills LPC Louisiana-Pacific Corp. PVT Other private lands SMP Simpson Timber Co. TNC The Nature Conservancy DATELAST Date of the most recent observation of voles in this section. When data is given as 01/01/yy, the month and date of that observation are not known and only the year of observation was provided. When on date is given, the record usually represents a specimen taken and reported in literature. DOCSOURCE Document reference number for observation report in Department files. ESRI Coordinates defining the features. Shape Feature geometry. ESRI Coordinates defining the features. 20160906 California Department of Fish and Wildlife Scott Osborn Senior Environmental Scientist mailing and physical

1812 9th Street

Sacramento CA 95811 (916) 324-3564 Scott.Osborn@wildlife.ca.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time