ANT211H5 Lecture Notes - Lecture 5: Erection, Coolidge Effect, Parental Investment
Document Summary
Ant211: intrasexual competition: how males and females compete for mates. Advantage that certain individuals have over other individuals of the same sex. Goes back all the way to darwin. Talking about males and females in terms of their secondary sex hormones. Sexual selection starts to come into play because there is variation between males and females when reach sexual maturity idea of choice and competition between same sex individuals of the same species. When talking about sexual selection, talking about intrasexual competition: males against other males, females against other females. All in the effort to optimize your reproduction. Outmaneuver or drive away other members of the same sex. So intrasexual competition occurs in these 2 ways: 1. Push male competitor out of the away and pull in female for copulation (more direct: 2. Optimize your attraction to the opposite sex: display resources, showing off features, etc. Tends to be more confrontational & intense than females.
