Inbreeding avoidance
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| - | '''Kin recognition (kin detection)''' refers to an animal's potential ability to distinguish between close genetic kin and non-kin. In [[evolutionary biology]] and in [[psychology]], such capabilities are presumed to have evolved to serve the adaptive function of [[inbreeding avoidance]]. | + | '''Inbreeding avoidance''', or the inbreeding avoidance hypothesis, is a concept in [[evolutionary biology]] that refers to the prevention of the deleterious effects of [[inbreeding]]. The inbreeding avoidance hypothesis posits that certain mechanisms develop within a species, or within a given population of a species, as a result of [[natural selection|natural]] and [[sexual selection]] in order to prevent breeding among related individuals in that species or population. Although inbreeding may impose certain evolutionary costs, inbreeding avoidance, which limits the number of potential mates for a given individual, can inflict opportunity costs. |
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| - | An additional adaptive function sometimes posited for kin recognition is its possible role in relation to [[kin selection]]. There is debate over this additional role, since in strict theoretical terms that it is not necessary for [[kin altruism]] or the cooperation that accompanies it. Additionally, in experimental results, active powers of recognition play a negligent role in mediating social cooperation relative to less elaborate cue-based mechanisms, such as familiarity, [[Imprinting (psychology)|imprinting]] and phenotype matching. Nevertheless, much research has been produced investigating the possible role of kin recognition mechanisms in mediating altruism. | + | |
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| - | Because kin recognition is overwhelmingly cue-based, outcomes are non-deterministic in relation to actual genetic kinship. A well-known example is the [[Westermarck effect]], in which unrelated individuals who spend their childhood in the same household find each other sexually unattractive. Similarly, due to the cue-based mechanisms that mediate social bonding and cooperation, unrelated individuals who grow up together in this way are also likely to demonstrate strong social and emotional ties, and enduring altruism (see [[Social Bonding and Nurture Kinship]]). | + | |
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| - | ==See also== | + | |
| - | *[[Inclusive fitness]] | + | |
| - | *[[Kin selection]] | + | |
| - | *[[Nurture kinship]] | + | |
| - | *[[Attachment theory]] | + | |
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Inbreeding avoidance, or the inbreeding avoidance hypothesis, is a concept in evolutionary biology that refers to the prevention of the deleterious effects of inbreeding. The inbreeding avoidance hypothesis posits that certain mechanisms develop within a species, or within a given population of a species, as a result of natural and sexual selection in order to prevent breeding among related individuals in that species or population. Although inbreeding may impose certain evolutionary costs, inbreeding avoidance, which limits the number of potential mates for a given individual, can inflict opportunity costs.
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