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Download Chapter 6 Study Guide Population and Community Ecology Key
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Chapter 6 Study Guide Population and Community Ecology Key Terms: Population Exponential Growth Model Resource Partitioning Community J-shaped Predation Population Ecology Logistic Growth Model Pathogens Population Size S-shaped Mutualism Population Density Overshoot Commensalism Population Distribution Die-off Symbiotic Sex Ratio K-selected Species Keystone Species Age Structure R-selected Species Pioneer Species Density-dependent Survivorship Curves Predator-mediated Factors Competition Limiting Resource Corridors Ecosystem Engineers Carrying Capacity Metapopulation Ecological Succession Density-independent Community Ecology Primary Succession Growth Rate Competition Secondary Succession Intrinsic Growth Rate Competitive Exclusion Theory of Island Principle Biogeography factors 1. Be familiar with Population Case Studies (Articles): CA Sea Otter and Easter Island. 2. What levels of complexity make up the biosphere? 3. How do populations and communities differ? 4. What factors regulate the size of a population? 5. Explain Gause’s findings in his experiments 6. What is the difference between density-dependent and density-independent factors that influence population size? Give example of each. 7. Compare and contrast the exponential growth model and the logistic growth model. 8. Define metapopulation. How do metapopulations contribute to the preservation of biodiversity? 9. What are the various ways in which species interact with each other? 10. What are the four types of predators? 11. What roles might keystone species play in an ecosystem? 12. How are species distributed globally, and what processes are responsible for these patterns? 13. What are the four factors that determine the number of species found in a community? 14. What does the theory of island biogeography describe? 15. What is the process of ecological succession? 16. Explain how does latitude, time, area, and distance affect the species richness of a community. FRQ’s 1. The California Department of Fish and Game is developing a plan to connect mountain “habitat islands” that are separated by open areas of flat, arid land in the deserts of southeastern California. These mountain areas are habitats for desert bighorn sheep, which move extensively among the islands through habitat corridors. Habitat corridors provide opportunities for recolonization, seasonal migration, and maintenance of genetic variation among the metapopulation of desert bighorn sheep. a. Explain what is meant by a metapopulation and how it relates to the desert bighorn sheep. b. Indentify two density-dependent factors and one densityindependent factor that could affect the populations of desert bighorn sheep. c. Explain the consequences of the desert bighorn sheep population if the plan to connect the mountain habitat islands is not implemented. d. Explain how the theory of island biogeography applies to the mountainous areas of southeastern California.