F13 lecture 22

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Unformatted text preview: on long- tailed widowbirds (Euplectes progne) in Africa hap://www.hlasek.com/ foto/ euplectes_progne_ad637 2.jpg Fitness can be thought of as being composed of several components Darwin: sexual selection: male mating success as one fitness component different fitness components experience different selection one trait can have distinct effects on distinct selection components e.g. tail length in bowerbirds: + for mating success, - for survival multiplicative fitness = divides fitness up into components orders the components such that the numerator of the more inclusive component becomes the den...
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