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17 Cards in this Set
- Front
- Back
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Dyadic/pairwise
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Interactions that involve two individuals
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Actor
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The individual performing the behavior
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Recipient
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The individual affected by the behavior
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Selfish act
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An act beneficial to the actor and costly to the recipient
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Altruistic act
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An act costly to the actor and beneficial to the recipient
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Mutualistic act
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An act that is beneficial to both the actor and recipient
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Spiteful interaction
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An interaction that is costly to both parties
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Kin selection
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The idea that selection could favor altruistic alleles if animals interacted selectively with their genetic relatives
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Hamilton's Rule
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An act will be favored by selection if:
rb > c. See pg 203 for definition |
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Coefficient of relatedness, r
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Measures the genetic relationship between interacting individuals
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Phenotypic matching
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Organisms are able to recognize their kin by their smell or likeness to themselves
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Reproductive skew
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Occurs when a single male dominates matings during each mating season
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Food sharing
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The unforced transfer of food from one individual to another (generally occurs between close relatives)
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Affiliative contact
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Friendly contact between individuals (example is through grooming)
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Coalitions/alliances
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Occurs when one individual comes to the support of another individual involved in an ongoing dispute
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Matrilineage
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A maternal kin group
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Reciprocal altruism
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Individuals take turns being actor (giving support) and recipient (receiving support) in a relationship over time
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