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Distribution and Conservation Status of Coastal Sage Scrub in Southwestern California
Frank W. Davis, Peter A. Stine and David M. Stoms
Journal of Vegetation Science
Vol. 5, No. 5, Applications of Remote Sensing and Geographic Information Systems in Vegetation Science (Nov., 1994), pp. 743-756
Published by: Wiley
Stable URL: http://www.jstor.org/stable/3235887
Page Count: 14
You can always find the topics here!Topics: Vegetation, Scrub vegetation, Species, Maps, Sage, Landscapes, Land management, Habitat conservation, Coastal management, Databases
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A landscape-based characterization of vegetation has been developed for southwestern California using satellite imagery, air photos, existing vegetation maps, and field data. Distribution maps of nine dominant coastal scrub species and 13 species assemblages that were identified by divisive information analysis have been analyzed to quantify spatial patterns of species co-occurrence. Three general distribution patterns are identified that suggest the Diegan, Venturan and Riversidian Associations identified by other workers. Vegetation data have also been related to land ownership and management to assess the conservation status of upland plant communities. A large proportion of the mapped distribution of species and vegetation types is on private land, and several taxa show less than 4% of mapped distribution in nature reserves. The analysis highlights the need to extend current conservation planning efforts into the northern part of the region to encompass areas where Salvia leucophylla is a frequent community dominant.
Journal of Vegetation Science © 1994 Wiley