Biol 104, Dr. Espinoza, S10 Study Sheet for Chapter 45 Community Ecology Modified with permission from Dr. Denny Smith Some of this information will be found in your readings, some in your lecture notes. 1. What is the purpose of the unit on ecology and biodiversity? Define biodiversity. 2. What is a community? Why would the interactions between organisms be included in its definition? (Give examples of aquatic and terrestrial communities.) 3. How is diversity within a community defined? IOW, which two parameters are measured? Do all communities on Earth have the same species composition or numbers of species? 4. What is the basic pattern of species diversity that is seen in communities as you move from the North or South Pole to the Equator? What determines this pattern? 5. Define climate. How do abiotic factors such as climate determine where an organism can live (answer is a single phrase not a paragraph)? Name some abiotic factors that are not directly related to climate. 6. Distinguish between the individualistic model and the interactive model for community composition. 7. What is the theory of island biogeography? What two FACTORS are studied to see how they affect the
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