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Discussion

Discussion. Why are females often drab? Why don’t males prefer flashy females?. Sexual selection is influenced by social mating system. Aethla cristalla Crested auklet: male and female. Eclectus roratus Eclectus parrot (Australia): male and female. Which is flashier?

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Discussion

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Presentation Transcript

  1. Discussion Why are females often drab? Why don’t males prefer flashy females?

  2. Sexual selection is influenced by social mating system

  3. AethlacristallaCrested auklet: male and female

  4. EclectusroratusEclectus parrot (Australia): male and female Which is flashier? It isn’t ALL just about the sex!

  5. Alternative strategies for the competitive sex • sneak

  6. Coho Salmon The first male to spawn fertilizes most, but not all eggs Sneaky male Fighting strategy Female Sneaky male Males return from sea to spawn and die Hooknoses = 18 mo.; Jacks = 6 mo.

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