Sexual Selection and Mating Systems

Sexual Selection and Mating Systems - Sexual Selection and...

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Sexual Selection and Mating Systems Lethal aggression in Chimpanzee: extreme territorial defense Outcome: size of party Mainly involves males, patrolling behavior around borders along territorial paths Method: stealth and attack on lone individuals, annihilating opponents. Competition leads to aggression in interesting contexts: parental infanticide (birds), sibilicide (hyenas), male aggression towards females Sexual Selection and Mating Behavior Components of Fitness: survival to adulthood, fecundity**especially females, mating success, offspring born, offspring survival Runaway traits: Costly, found in males, used in mating (peacock) Explain: bright colors in males than in females?, why are males larger than females in most mammals?, Explain why sexual dimorphism is greater in MMMF groups (polygynous) Sexual Selection-selection of traits that are attractive to mates or traits that concern competition for mates Subdivision: Inter-sexual selection-male contest , and intrasexual selection-female choice
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This note was uploaded on 08/26/2011 for the course ANTHRO 200 taught by Professor Gouzoulesandkonner during the Spring '11 term at Emory.

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Sexual Selection and Mating Systems - Sexual Selection and...

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