BIOC50H3 Lecture Notes - Competitive Exclusion Principle, Species Pool, Limiting Factor
21 Sep 2012
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Document Summary
Biob50 lecture 22: lottery competition and neutral theory. You have a regional species pool then via dispersal/immigration, abiotic factors, and species interactions you get a local community. Lottery model: emphasizes the role of chance, it assumes that resources are captured @ random by recruits from a larger pool of potential colonists. In this model, species must have similar interaction strengths and pop growth rates, and the ability to disperse quickly to disturbances that free up resources= all species have equal chances of obtaining resources, which allows coexistence. Species can win competition by producing more offspring. When an individual dies, they are replaced according to who arrives first number and timing of propagules is important there can be different types of competition in which fitness differences are important.
