Barrett A. Garrison, Resource Assessment Program, California Department of Fish and Game, North Central Region 20070616 Version 1 vector digital data http://bios.dfg.ca.gov ftp://ftp.dfg.ca.gov/BDB/GIS/BIOS/Public_Datasets/300_399/ds315.zip These data are summary statistics of abundances of birds counted within 100-m radius circles with 10-minute point counts at 15 sample points within Spears and Didion Ranches, Placer County, in the foothills of the Sierra Nevada Mountain Range. Bird surveys were conducted 1 April to 6 June 2005 and 19 March to 23 June 2006. These data represent 539 detections of 69 species at 15 different sample points within these two ranches that are part of the Placer Legacy program. These data are intended to represent baseline data for wildlife communities and habitat conditions in these parks. They can be used to assess and monitor the park's ecological viability and sustainability. Methodology Birds were identified to species and counted in spring and summer in 2005 and 2006 within 100-m radius circular points in oak woodland habitat in Placer County. Different observers did the counts over the two years, and there were three and eight counts, respectively, in 2005 and 2006. The 15 points were randomly located throughout the study area. Observers were fully trained in the count methodology and bird identification, and all observers had hearing tests to ensure that they had normal hearing. Observers were rotated among sample points and individual counts. All birds seen and heard that were at least momentarily stationary on the ground, vegetation, or on the water, were were identified to species and included in the counts. Bird abundances were derived by averaging the number of individuals detected for the counts conducted in each year. Binoculars were used when necessary to identify species. The sample points were randomly selected from a 300-m by 300-m grid across the entire study area. Reference: Garrison, B. 3/22/2004. Field and Data Recording Protocols for Point Counts of Breeding Landbirds in the Sierra Nevada Foothills. Resource Assessment Program, North Central Region, California Department of Fish and Game, Rancho Cordova, CA. 9pp. This report can be accessed at http://nrm.dfg.ca.gov/documents/ContextDocs.aspx?cat=BIOS&sub=ds315 . 1 April to 6 June 2005 and 19 March to 23 June 2006 ground condition Complete As needed -121.207941 -121.166096 38.975614 38.959015 None bird house sparrow European starling Placer Legacy Program brown-headed cowbird red-tailed hawk willow flycatcher mountain quail acorn woodpecker California quail red-shouldered hawk habitat golden eagle wild turkey yellow-breasted chat oak woodland mourning dove sample lark sparrow ISO 19115 Topic Category biota environment None California Didion Ranch Placer County Sierra Nevada foothills Spears Ranch Coon Creek Public use. These data can be used without constraints. Resource Assessment Program, California Department of Fish and Game, North Central Region Barrett A. Garrison Staff Environmental Scientist mailing

North Central Region

California Department of Fish and Game

1701 Nimbus Road

Rancho Cordova CA 95670 (916) 358-2945 (916) 358-2912 bgarrison@dfg.ca.gov Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.1.4959 It is assumed that the locations of the survey points are accurate with regard to the actual locations on the ground where the surveys were done. It is assumed that these species were accurately identified by vocalization and/or visually, and that they were counted accurately. Also, the spatial accuracy of the 100-m count circle radius is presumably accurate to +- 5 m because boundaries were measured with laser rangefinders and marked in the field with flagging. The accuracy of distance estimation for birds is +- 10 m, and distance estimates for vocalizing birds is less than visually detected birds. The reported abundances represent averages from three (2005) or eight (2006) replicated counts at 15 sample points at the Spears and Didion Ranch parks in Placer County. Within each year, averages are consistent among the 15 points with regard to observers and survey effort. Only birds accurately identified to full species that were on some surface and momentarily stationary and not flying (e.g., perched, floating, walking, etc.) within the 100-m radius circle during the 10-minute counting period are reported. These observations represent detections for birds within a 100-m radius circle, and these animals are highly mobile but it is likely that these animals can be found again at the same points indicated in this file. Repeat surveys of the same areas, however, may result in different rates of detections as well as abundances of these same species. The 15 points, however, are numbered from 2 to 16 because the first of the originally 16 selected points was dropped from the surveys after the initial random selection and surveys were started. All data are complete. The boundary distance of the point count radii are accurate to +- 5 m, while the bird detections are accurate to +- 10 m. Data were gathered in the field, entered into SYSTAT statistical software as raw field data from the counts, and then an Excel file was created with the summary statistics for detection rates and the average number of individuals per count. California Department of Fish and Game Barrett A. Garrison bgarrison@dfg.ca.gov Data from the sample points were gathered in the field using global positioning system units and then uploaded to Arc View 3.2 California Department of Fish and Game Barrett A. Garrison bgarrison@dfg.ca.gov Vector Entity point 15 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 ds315 FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. LATDD Latitude of sample point in NAD83. LONDD Longitude of sample point in NAD83. POINT Number of the sample point within the parks. ds315_EX1 OID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. COM_NAME Common name of the bird species detected. SCI_NAME Scientific name of bird species. YEAR Year in which the data were collected. NUM_DET Number of counts where the species was detected. There were at least 3 counts in 2005 and 8 counts in 2006. TOT_INDIV Total number of individuals detected across all counts done at each point. DET_RATE Detection rate calculated by dividing NUM_DET by NUM_REPS and multiplying by 100. AVE_INDIV Average number of individuals detected per count; TOT_INDIV divided by NUM_REPS NUM_REPS Total number of counts per point; points either had 3 counts in 2005 or 8 counts in 2006. POINT Number of sample point within the study area where point count was done. These 15 points occur in oak woodland habitat in the foothills of the Sierra Nevada Mountain Range in California in Spears and Didion Ranch parks in Placer County. These points were locations were point count surveys for birds were conducted in 2005 and 2006. Biogeographic Data Branch, California Department of Fish and Game Gordon Gould mailing

California Department of Fish and Game

1416 Ninth St., 12th floor

Sacramento CA 95814 ggould@dfg.ca.gov Neither the State of California nor the California Department of Fish and Game warrant the correctness or accuracy of the observation data presented in here. They are used at the user's own risk. Contact Distributor 1-2 weeks 20160229 Resource Assessment Program, California Department of Fish and Game, North Central Region Barrett A. Garrison mailing

North Central Region

California Department of Fish and Game

1701 Nimbus Road

Rancho Cordova CA 95670 (916) 358-2945 (916) 358-2945 bgarrison@dfg.ca.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time