Shaw Lecture 3(web) - 1 How do behaviors evolve? 1. Loss of...

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Unformatted text preview: 1 How do behaviors evolve? 1. Loss of character ( Teleogryllus song ) 2. Change in motivation ( Teleogryllus preference ) 3. Change in frequency or duration ( rhythmic signals ) 4. Change in context ( bowerbird scraa calls ) 5. Change in form ( nuptial color and preference ) 6. Evolution of novel character ( vein-cutting behavior ) Courtship Aggression skrraa skrraa skrraa Borgia and Coleman Proc. R. Soc. London 2000 pre-co-option What is the phylogenetic prediction of co-option? 2 Consequences of behavioral evolution A. Behavioral evolution and speciation 1. Changes in mating behavior 2. Reduced in gene Fow 3. Reproductive isolation B. Behavioral evolution and species coevolution 1. Evolutionary arms races 2. Escape and radiate coevolution C. Principles of behavioral evolution in conservation 1. Informing conservation biology with animal behavior in regard to structures adapted to make one male victorious over another, either in fighting or in charming the female, there is no definite limit to the amount of advantageous modification Darwin, The descent of man and selection in relation to sex. 2nd edn., London, John Murray, 1882, p. 226. 2 Consequences of behavioral evolution A. Behavioral evolution and speciation 1. Changes in mating behavior 2. Reduced in gene Fow 3. Reproductive isolation B. Behavioral evolution and species coevolution 1. Evolutionary arms races 2. Escape and radiate coevolution C. Principles of behavioral evolution in conservation 1. Informing conservation biology with animal behavior 1....
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Shaw Lecture 3(web) - 1 How do behaviors evolve? 1. Loss of...

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