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Unformatted text preview: Serpentine Grasslands: • Serpentine soils: dry, nutrient poor, and sometimes toxic conditions (the “serpentine syndrome” Kruckeberg 1984 • Impedes invasion by European annual grasses, allowing persistence of native bunchgrasses and forbs o Serpentine endemics o Host plants for the Bay checkerspot butterfly • Hypothesis: Hydrogen deposition from air pollution facilitates invasion of European annual grasses Santa Clara 22:02 22:02...
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This note was uploaded on 08/26/2011 for the course ECON 1 taught by Professor Bergstrom during the Spring '07 term at UCSB.
- Spring '07