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Chapter 11. Kin Selection and Social Behavior

Chapter 11. Kin Selection and Social Behavior. Interactions between individuals can have 4 possible outcomes in terms of fitness gains for the participants. Kin Selection and Social Behavior. Cooperation ( mutualism ): fitness gains for both participants.

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1.78k views • 120 slides

Chapter 13: Evolution of Social Behavior

Chapter 13: Evolution of Social Behavior. Costs and benefits of Social Life. There are a large number of possible costs and benefits associated with social behavior. Potential costs and benefits of sociality. Greater conspicuousness to predators, but also better defense against predators.

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1.22k views • 99 slides

Types of Social Interactions

Types of Social Interactions. Cooperation = mutualism Fitness gains for both participants Altruism Fitness gain for recipient Cost for actor Selfishness Actor gains Recipient loses Spite Fitness loss for both participants. Prevalence of Altruism. Appears to be common in nature

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857 views • 55 slides

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Direct fitness results - PowerPoint PPT Presentation

Chapter 11. Kin Selection and Social Behavior

Chapter 13: Evolution of Social Behavior

Types of Social Interactions