Resh8 - Biology 1B Ecology Lecture 8 Page 1 Professor Resh...

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Unformatted text preview: Biology 1B, Ecology Lecture 8, Page 1 Professor Resh • Spring 2010 *Assigned readings, 8 th Edition pp. 1214-1216, Review Chapter 54 7 th Edition pp. 1175-1180, 1209-1224 Island Biogeography Outline of Lecture 8 A. What is island biogeography? B. Factors that determines number of species on islands C. Characteristics related to the island size, distance, etc. D. Conservation issues E. Exotic species introductions F. Generalization about species richness A. Factors that determine the number of species that eventually inhabit an island. 1. The rate at which new species immigrate to the island from the mainland. 2. The rate at which species become extinct on the island. • Mainland: the place that serves as the origin of colonizing species. B. Immigration and extinction are also effected by: 1. Size of island 2. Distance from mainland log of area log of number of species log of distance Biology 1B, Ecology Lecture 8, Page 2 Professor Resh • Spring 2010 *Assigned readings, 8 th Edition pp. Edition pp....
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Resh8 - Biology 1B Ecology Lecture 8 Page 1 Professor Resh...

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