ANT131,10 - Evolution&ReproductiveStrategies...

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Minimizing fitness Survive Acquire mate(s) Rear offspring to adulthood Reproductive/Sexual Asymmetry Females have a lower reproductive potential Fitness limited by access to resources Invest more energy and time in offspring, beginning with conception. Males have a higher reproductive potential Limited by access to females. Descent of Man and Selection in Relation to Sex  (Darwin 1871) “Sexual selection takes place whenever individuals of one sex (usually males)  compete for mating opportunities or, when individuals of one sex (usually  females) choose mating partners.” Sexual Selection Theory: Male Strategies to Enhance Fitness Male-male competition Sexual Dimorphism Increases with polygny Sperm Competition Multi-Male, Multi-Female groups Sexual coercion of females Be “Chosen” by females Male Chimpanzee Strategies Male-Male Competition Achieve high rank Coerce Females
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This note was uploaded on 03/01/2012 for the course ANT 131 taught by Professor Shannonnovak during the Spring '09 term at Syracuse.

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ANT131,10 - Evolution&ReproductiveStrategies...

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