01:119:115 Lecture Notes - Lecture 25: Paramecium Aurelia, Eugene Odum, Niche Differentiation
18 Oct 2016
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Have no effect (0: competition, predation (includes herbivory, symbiosis (parasitism, mutualism, and commensalism) Community: association of populations of different species that live and interact in the same place at the same time ex: figure 54. 2 -> crab carries a sea urchin (or jellies) on its back for protection against predators. Study of reactions that determine distribution and abundance of individuals and populations in communities. Find patterns and processes common to wide variety of communities. Can be difficult because of many interactions between individuals and populations. Resource: anything from environment that meets needs of a particular species. Competing for the same resource in short supply -> -/- interactions -> use by one -> decreases amount available to others. To understand competition you need to understand the used resources, which leads one to: If an organism"s habitat is it"s address , the niche is the organism"s profession.
