Paddock III, William A , Davis, Stephen D. , Ewers, Frank W. .
Explaining Patterns of Mortality Following Severe Drought in a Chaparral Shrub Community.
Mortality in adult chaparral shrubs is extremely rare, with the notable exception of fire events; however, following several years of severe drought we recorded and analyzed patterns of extensive adult mortality in communities of chaparral shrubs. The communities were located in the San Bernardino National Forest (Riverside County, CA), near ecotones with desert plant communities. Common species included Adenostoma fasciculatum, Rhus ovata, Adenostoma sparsifolium, Quercus cornelius-mulleri, Bernardia incana, Ceanothus greggii, and Arctostaphyllus glauca. Drought was confirmed using the Palmer Drought Severity Index. Significantly different mortality rates were observed among species and mortality was correlated with life history strategy (p
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1 - Michigan State University, Department of Plant Biology, 166 Plant Biology, East Lansing, Michigan, 48824, USA
2 - Pepperdine University, Natural Sciences Division, 24255 Pacific Coast Highway, Malibu, California, 90263-4321, USA
Presentation Type: Oral Paper
Date: Monday, August 15th, 2005
Time: 9:15 AM