54-comecoloutl - 2 food webs C important species in the...

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Biology 3 Lecture: Community Ecology (SBM9: Ch 54) ©2011 copyright Marta D. de Jesus I. in general A. intraspecific B. interspecific communities all usually contain 1) 2) 3) II. Types of ecological interactions [T54-1] A. competition 1. can be intraspecific or inter- 2. competitive exclusion principle b. tested (Gause 1934) 3. ecological niche a. includes habitat b. fundamental niche c. realized niche eg: barnacles eg: Anolis lizards 4. resource partitioning 5. character displacement predator adaptations
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3. prey defenses a. behavioral b. morphological 1) plants 2) animals c. chemical 4. parasitism C. mutualism D. commensalism E. neutral F. facilitation G. coevolution . III. Species richness/diversity A. 2 components 1. species richness 2. species evenness 3. species diversity B. trophic structure 1. food chains
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Unformatted text preview: 2. food webs C. important species in the community 1. dominant species 2. keystone species 3 invasive species D. control of relationships 1. bottom-up model 2. top-down model 3. other models IV. Disturbance A. balance of nature B. disturbance intermediate disturbance hypothesis C. ecological succession 1. trends 2. kinds a. primary succession b. secondary succession V. Biogeographic factors A. center of origin B. range 1. endemic 2. cosmopolitan C. equatorial-polar gradients D. area effects (von Humboldt) E. community complexity F. island biogeography/equilibrium model (Wilson & MacArthur) 1. size of an island 2. distance from mainland G. ecotones H. humans I. can use DNA VI. Models about community structure A. Clements’ organismic model B. Gleason’s individualistic model C. data usually favor...
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54-comecoloutl - 2 food webs C important species in the...

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