EVPP 108 Lecture Notes - Lecture 31: Interspecific Competition, Coevolution, Commensalism
5 Mar 2018
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Document Summary
Communities: principles of communities, species interactions, competition: ecological community consists of all the interacting populations in an ecosystem. Interactions between populations in a community help limit their size: populations are kept in balance with their resources. 3 types of interspecific interactions: predation, symbiosis, competition predation (+/-) interaction, one species benefits and one doesn"t. Predator defense adaptations: phenotypic characteristics, predation can drive the evolution of prey. Encompasses all aspects of a species way of life, including: physical home or habitat, physical and chemical environmental factors necessary for survival, how the species acquires its energy and materials, all the other species with which it interacts. Competition is an interaction that may occur between individuals or species vying for the same, limited resources: energy, nutrients, space. Interspecific competition occurs between different species interspecific competition, two or more species attempt to use the same limited resources.
