Strong reciprocity or strong ferocity? A population genetic view of the evolution of altruistic punishment.

Détails de la publication Détails dans Serval
ID Serval serval:BIB_3A2F226BC157
Type de publication
Article: article d'un périodique ou d'un magazine.
Collection Publications
Fonds UNIL/CHUV
Auteur(s) Lehmann L., Rousset F., Roze D., Keller L.
Titre Strong reciprocity or strong ferocity? A population genetic view of the evolution of altruistic punishment.
Périodique American Naturalist
Statut éditorial Publié
Année 2007
Peer-reviewed oui
Volume 170
Numéro 1
Pages 21-36
Langue anglais
Résumé Strong reciprocity, defined as a predisposition to help others and to punish those that are not helping, has been proposed as a potent force leading to the evolution of cooperation and altruism. However, the conditions under which strong reciprocity might be favored are not clear. Here we investigate the selective pressure on strong reciprocity by letting both limited dispersal (i.e., spatial structure) and recombination between helping and punishment jointly determine the evolutionary dynamics of strong reciprocity. Our analytical model suggests that when helping and punishment are perfectly linked traits (no recombination occurring between them), strong reciprocity can spread even when the initial frequency of strong reciprocators is close to 0 in the population (i.e., a rare mutant can invade). By contrast, our results indicate that when recombination can occur between helping and punishment (i.e., both traits coevolve) and is stronger than selection, punishment is likely to invade a population of defectors only when it gives a direct fitness benefit to the actor. Overall, our results delineate the conditions under which strong reciprocity is selected for in a spatially structured population and highlight that the forces behind its evolution involves kinship (be it genetic or cultural).
ISBN/ISSN 1537-5323 (Electronic)
ISSN-L 0003-0147
Mots-clé Altruism; Animals; Biological Evolution; Gene Frequency; Genetics, Population; Humans; Linkage Disequilibrium; Models, Biological; Phenotype; Population Dynamics; Punishment/psychology; Selection, Genetic
URN urn:nbn:ch:serval-BIB_3A2F226BC1579
OAI oai:serval.unil.ch:BIB_3A2F226BC157
DOI 10.1086/518568
Référence externe Pubmed : 17853989
Référence externe Web of Science : 000247527200005
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Dernière modification 2013-03-07