35 Ecology handout - Lecture 35 Ecology I Introduction A...

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Lecture 35: Ecology I. Introduction A. Definition B. Levels at which ecology is studied Population = the basic ecological unit; all of the individual organisms of a single species in a defined area Community = all of the organisms of different species in a defined area Ecosystem = interrelationships between all living organisms in a given area and with the environmental factors in the area; self-sustaining, balanced and self- perpetuating Biome
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Unformatted text preview: = worldwide groups of similar ecosystems; regional; climatically controlled II. Populations and population growth A. "r-selected" vs. "K-selected" populations B. Human population growth III. Community-level ecology A. Interactions between organisms- competition, predation, mutualism, commensalism, amensalism B. Trophic levels IV. Ecosystems and Biomes A. Physical factors and ecosystems B. The Mediterranean Scrub biome...
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