SDE Feature Class
biota, San Benito County, United States, Monterey County, Vegetation, Vegetation Mapping, Pinnacles National Monument, location, California, Vegetation Map
The purpose of this project was to describe and map existing vegetation on 18,210 hectares (44,997 acres), within PINN and its environs, and to provide this information in written, tabular, digital and spatial formats useful to Monument resource managers, the California Native Plant Society, Department of Fish and Game and others. The basic project components consist of a classification and description of the Monument's vegetation and a spatial database encompassing an interpretation of the vegetation from aerial imagery.
Between 2003 - 2008, the vegetation within a study area of 18,210 hectares (44,997 acres) that encompasses the Pinnacles National Monument (PINN), a quarter-mile buffer and several additional parcels of interest adjacent to the Park was mapped. The map was produced from photo interpretation of 2003 and 2005 natural color and 2002 color infrared digital 1 meter NAIP imagery orthophotos. In 2003 and 2004 Park staff collected vegetation and environmental data from 591 relevs to support the map and classification. Assessment of map accuracy entailed sampling of 766 additional data points in 2008. Multivariate analysis of the 2003-2004 plot data revealed 67 National Vegetation Classification (NVC) plant associations, alliances or Park special vegetation types within the Monument and environs. Of these, 45 are described at the plant association level; seven others are described at the alliance level. The remaining 22 are described as 'Park specials' because they occur only in small stands and appear to be unique to the Monument. The vegetation of the mapping project area is relatively diverse, including 50 NVC alliances. Chaparral, oak woodlands and dry herbaceous areas dominate the vegetation, accounting for ~35 associations. A total of 6,141 map polygons representing 34 vegetation map classes (including tree and shrub cover attributes), fourteen land use map classes and 7 miscellaneous classes were developed for the PINN vegetation mapping project. Of the 6,141 mapped polygons, 115 were assigned both a land use class and a vegetation class. The average polygon size across all map classes is 3 ha (7.3 acres). Natural and semi-natural vegetation classes cover 17,953 ha (44,362 acres), or 98.6% of the project area. Land use polygons, including ranch developments, agriculture and Park facilities cover 250 ha (617 acres), or 1.4 % of the project area. Final overall map Producer accuracy is 84.4% (Kappa correction = 83.1%). Final overall map User accuracy is 78.0% (Kappa correction = 75.6%).
Vegetation classification development was conducted by PINN, NatureServe, and the California Native Plant Society. The vegetation mapping was conducted by Aerial Information Systems. Acknowledgements This project was completed through the effort and dedication of numerous individuals and organizations. Details of the role of each person mentioned here is described in more detail in the Project Overview section. Sharon Franklet, Denise Louie, Paul Johnson and Brent Johnson (Pinnacles National Monument), Julie Evens and Jennifer Buck (California Native Plant Society), Gwen Kittel and Marion Reid (NatureServe), and Debbie Johnson, Ben Johnson, Ed Reyes and Arin Glass (Aerial Information Systems). Funding for this project was provided through the USGS-NPS National Vegetation Mapping Program and administered to the Park by the kind help of the San Francisco Bay Area Inventory and Monitoring Network. Numerous individuals collected plot and accuracy assessment field data. We appreciate the hard work of Melinda Elster, Andra Forney and Betsy Harbert with oversight by Jennifer Buck, Eric Peterson, Donna Shorrock, and Kendra Sikes (CNPS). The 2003 and 2004 Park crews were Sherry Bottoms, Katie deLaveaga, Shauna Hee, Michelle Karle, Kipp Marzullo, Keir Morse, Kendra Moseley (NPS) and others not listed here. Gwen Kittel of NatureServe conducted quantitative analyses and prepared the preliminary vegetation classification; analysis results were reviewed and final association names assigned by Julie Evens (CNPS) and Gwen Kittel (NatureServe). The California Native Plant Society staff, including Ed Kentner, created the local association descriptions. Ed Reyes and Arin Glass (AIS) conducted the photo interpretation and Debbie Johnson, Ed Reyes, Mike Nelson and Ben Johnson conducted the accuracy assessment. Jennifer Buck (CNPS) assisted with accuracy assessment analysis. All parties contributed to the final report. Ben Johnson of AIS also created most of the report figures. Thanks also to John Menke (AIS) and Todd Keeler-Wolf (California Department of Fish and Game) for their guidance during the initial meeting and field reconnaissance. Special thanks to Sharon Franklet, Jason Herynk, Denise Louise, Brent Johnson, Valerie Nuttman, Paul Johnson, Eric Brunnermann, Darrell Chambers, Leticia Ruiz, Lisa Smith, and the Condor Program Team of Pinnacles National Monument, who made us welcome whenever we arrived to check the map or collect field data, and provided helpful advice, keys, access and field assistance to help us best access different parts of the Monument. For these and other contributors to the success of the project, we are grateful.
Please acknowledge the originators in products derived from these data. Any person using the information presented here should fully understand the data collection and compilation before beginning analysis. The burden for determining fitness for use lies entirely with the user.