Lec_15_S07

Lec_15_S07 - More Topics in Behavior Cooperation Altruism...

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1 More Topics in Behavior Cooperation Altruism Sociality/Social Behavior Cooperation • Displaying a behavior that benefits another individual • How many things can you think of that represent cooperation? • How is this different from mutualism, or is it?
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2 Social Interactions • Wild dogs involved in group hunting, a cooperative behavior • Social interactions • These can also involve territoriality or aggressive interactions What are some of the ways social interactions can occur? Just plain mean Selfish Recipient incurs a cost Altruistic Cooperative Recipient benefits Giver incurs a cost Giver benefits
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3 Cooperative Breeding Low mortality Group living Roost availability
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4 How might altruistic behaviors evolve? • Giver is manipulated by receiver • Increases fitness of the giver • Reciprocation in the future • The giver and receiver are related Different types of selection • Group selection – Reproduce more slowly – Migration – cheaters • Kin selection
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Lec_15_S07 - More Topics in Behavior Cooperation Altruism...

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