Term
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Definition
| chimpanzees and other species are members of structured groups |
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Term
| Fitness Benefits of Living in Groups (8) |
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Definition
Improved foraging
Decreased risk of predation
Conservation of water and heat
Decreased energetic costs of movement
Facilitate mating
Division of labor
Better learning environment
Aiding (and receiving aide) kin |
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Term
| Costs of Social Behavior (3) |
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Definition
Increased competition for resources
Increased disease and parasite risk
Interference with reproduction |
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Term
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Definition
| cooperation; both parties benefit immediately |
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Term
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Definition
| as a consequence of behaving selfishly, the donor inadvertently benefits the recipient. |
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Term
| Reciprocal Altruism or Reciprocity |
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Definition
| the trading of altruistic acts in which benefit is larger than cost; over a period of time both participants enjoy a net gain |
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Term
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Definition
| Self-sacrificing behavior; providing a social benefit with no return |
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Term
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Definition
| preferentially give aid to relatives |
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Term
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Definition
| in groups improves foraging success |
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Term
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Definition
| Natural selection selects on the packs that have the highest average amount of energy spread out per person in a pack. |
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Term
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Definition
| Communal roosts or colonies act as information centers. |
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Term
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Definition
| Riding close behind in the slipstream of another bird. |
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