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Sexual Selection.

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Presentation on theme: "Sexual Selection."— Presentation transcript:

1 Sexual Selection

2 Why Sex? Con: Asexual selection Pro: Genetic Diversity Energy
Better genetic health in population Pro: Genetic Diversity Meiosis Unrelated mating (outcrossing)

3 Female Choice? In most species it shapes evolution.
Choose best genes/who will win. Cheating occurs to acquire best genes. Bonobos

4 Male limitations Mates Elaborate mechanisms
Leave home and travel to find mates. Prevent inbreeding

5 Female Limitations Energy during lactation Land (resources)
Male competition for best resources

6 Intrasexual Competition
Territory Sperm competition Order of copulation (squirrel, bat) Infanticide

7 Intersexual Competition
Female Choice Forced copulation Dragonflies (Territorial M vs. Satellite M)


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