PSYCH 1XX3 Lecture Notes - Lecture 2: Inclusive Fitness, Assistive Technology, Eusociality
6 May 2016
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Document Summary
Biological traits that help an individual to survive and reproduce in its habitat. Differential survival and reproduction of organisms as a result of the heritable differences between them: three essential components: Within any population, there is variation among individuals for any given characteristic. Affects individual"s chances of surviving and reproducing, causing differential reproduction. The traits that give rise to differential reproduction have genetic basis. Offspring of successful reproducers will resemble their parents with respect to these variable characteristics. Selection against any sort of departure from the species-typical adaptive design. Peacock"s tail: energetically expensive to produce, more conspicuous to predators, harder to get away from predators, increases risk of dying, however, does contribute to fitness via increased chance of mating, mate choice preference by females: Sexual selection: the component of natural selection that acts on traits that influence an organism"s ability to obtain a mate, mate choice preferences: Female choice picks out males with best resistance to diseases.
