Kin recognition by phenotype matching is family- rather than self-referential in juvenile cichlid fish
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منابع مشابه
Human kin recognition is self- rather than family-referential.
Inclusive fitness theory predicts that organisms will tend to help close kin more than less related individuals. In a variety of birds and mammals, relatives are recognized by comparing their phenotype to an internal representation or template, which might be learned through either repeated exposure to family members or self-inspection. Mirrors are ubiquitous now, but were absent during our evo...
متن کاملSelf-referent phenotype matching and long-term maintenance of kin recognition
Please cite this article in press as: Mateo, Behaviour (2010), doi:10.1016/j.anbehav.201 Self-referential phenotype matching, or using one’s own cues as a referent for recognizing kin, is expected in species with multiple paternity or maternity to discriminate among full siblings and halfsiblings, or in nepotistic contexts to accurately assess relatedness. It would also facilitate optimal inbre...
متن کاملSelf-referent phenotype matching: theoretical considerations and empirical evidence.
In most birds and mammals, young are raised in family groups. The phenotypes of nestmates and parents are thus reliable cues for recognition of conspecifics and kin. However, in some species, young develop alone, or in broods of mixed relatedness (e.g. because of multiple paternity or maternity), or among heterospecifics or unrelated conspecifics (brood parasites). Under these circumstances, th...
متن کاملPromiscuity Drives Self-Referent Kin Recognition
Kin selection theory has been one of the most significant advances in our understanding of social behavior . However, the discovery of widespread promiscuity has challenged the evolutionary importance of kin selection because it reduces the benefit associated with helping nestmates . This challenge would be resolved if promiscuous species evolved a self-referent kin-recognition mechanism that e...
متن کاملBenefits of kin shoaling in a cichlid fish: familiar and related juveniles show better growth
Group living is widespread in animals. In nature, groups usually not only differ in phenotypic characteristics but also in the social relationships among group members. Theory predicts that individuals adjusting their shoaling decisions—to join certain groups or not—based on social criteria, such as familiarity or genetic relatedness, can increase their fitness. Although numerous studies report...
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تاریخ انتشار 2012