ENV100Y5 Lecture 17: ENV100 - 17 - Species Interactions and Community Ecology
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ENV100Y5 Full Course Notes
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Document Summary
Case study: zebra mussels: in 1988 european ships discharged water into lake st. clair, canada, within 2 years, they were found in all 5 great lakes, no natural predators, extremely good competitors, or parasites, unlimited resources. Unregulated population growth: hundreds of millions of dollars of damage to property. Any species exists in an environment, the environment is physical but also made up of different species. Shapes a lot of the evolution of plants: competition = multiple organisms seek the same limited resources. If resources are unlimited, there"s no competition: intraspecific competition vs. interspecific competition, competitive exclusion or species coexistence. Fundamental - the role that an organism plays in a community and the resources it"ll use in an ideal situation (no competition) Realized - species is limited in its roles/uses only a subset of resources instead of anything. Resource partitioning: species divide shared resources by specializing in different ways.
