01:119:115 Lecture Notes - Lecture 25: Community Association, Negative Feedback, Coevolution
3 Dec 2015
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Document Summary
From previous lecture: two extremes of life history strategies in most vertebrates. Population density- # of individuals of a species per unit of area or o o o volume at a given time r-selected species: k-selected species- Resource: anything from environment that meets needs of a particular species o. What happens when both species fill the same ecological. Variation in beak size between populations of 2 species of galapagos finches. Adaptations by predators for finding and capturing prey o. Batesian mimicry (harmless species mimics a harmful one: mullerian mimicry (2 unpalatable or harmful species mimic each other. Relative abundance- proportion each species represents of all individuals in the community. Trophic structure- feeding relationships: two extremes of life history strategies in most vertebrates. Population density- # of individuals of a species per unit of area or o o o volume at a given time r-selected species- Focus: rapidly producing many offspring (high growth rate)
