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Unformatted text preview: III Measuring Extinction Rates A. 3 types of Extinction 1. Local Extinction- species no longer found in an area, but still exists globally 2. Ecological extinction- so few members of a species exist it no longer plays its role in ecosystem 3. biological extinction- species no longer found anywhere B. Species /area curves- 90% loss in area results in 50% decline in numbers of species C. Population Viability Analysis- Risk assessment analysis to determine persistence of a population D. Estimates of Minimum Viable Population E. Minimum Dynamic Area-...
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- Fall '08