ROBERTS Download 19

ROBERTS Download 19 - Download 19 Community Ecology...

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Download 19 Community Ecology Principles of Biology BIOL 1543 Greig Roberts, DDS Office: SCEN 417 E-Mail: [email protected]
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2 A community includes all the organisms (more than one species) inhabiting a particular area A biological community is an assemblage of all the populations of organisms living close enough together for potential interaction 0 COMMUNITY ECOLOGY Communities are characterized by: Species diversity Dominant species Response to disturbance Trophic structure
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3 Competition may occur when a shared resource is limited Interspecific competition occurs between two species if they both require the same limited resource. A species’ niche i ncludes its total use of biotic and abiotic resources. The competitive exclusion principle states that two species cannot coexist in a community if their niches are identical. 0 COMMUNITY ECOLOGY
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4 Predation leads to diverse adaptations in both predator and prey Predation is an interaction between species
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ROBERTS Download 19 - Download 19 Community Ecology...

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