UNI101Y1 Study Guide - Aposematism, Crypsis, Coevolution
16 Feb 2013
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Bio120h lisa zhao 2011 | page 1 chapter 17: evolution of species interactions. Biological factors which have shaped adaptations differ from physical factors: Bf stimulate mutual evolutionary responses in the traits of interacting pop. Ex. predators shape prey"s adaptations for escape which shape their own adaptations for pursuit and capture. But adaptations of animals have no reciprocating effect on the envmt (bf) They foster diversity of adaptations rather than promoting similarity. Org. specialize in response to bf in response to similar stresses, species converge (evolve similar adaptations) Ccooeevvoolluuttiioonn: the reciprocal evolution in 2 or more interacting species of adaptations selected by their interaction. Adaptations in one pop. promote the evolution of adaptations in the other. Ex. when a herbivore evolves a way to detoxify a noxious chemical that has evolved in a plant. Their prey didn"t evolve to resist being eaten by hyenas.
