Fitness, inclusive fitness, and optimization

Détails

Ressource 1Télécharger: BIB_4E7C9266FA90.P001.pdf (345.91 [Ko])
Etat: Public
Version: Author's accepted manuscript
ID Serval
serval:BIB_4E7C9266FA90
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Fitness, inclusive fitness, and optimization
Périodique
Biology and Philosophy
Auteur(s)
Lehmann L., Rousset F.
ISSN
0169-3867
Statut éditorial
Publié
Date de publication
2014
Peer-reviewed
Oui
Volume
29
Numéro
2
Pages
181-185
Langue
anglais
Résumé
Individual-as-maximizing agent analogies result in a simple understanding of the functioning of the biological world. Identifying the conditions under which individuals can be regarded as fitness maximizing agents is thus of considerable interest to biologists. Here, we compare different concepts of fitness maximization, and discuss within a single framework the relationship between Hamilton's (J Theor Biol 7: 1-16, 1964) model of social interactions, Grafen's (J Evol Biol 20: 1243-1254, 2007a) formal Darwinism project, and the idea of evolutionary stable strategies. We distinguish cases where phenotypic effects are additive separable or not, the latter not being covered by Grafen's analysis. In both cases it is possible to define a maximand, in the form of an objective function phi(z), whose argument is the phenotype of an individual and whose derivative is proportional to Hamilton's inclusive fitness effect. However, this maximand can be identified with the expression for fecundity or fitness only in the case of additive separable phenotypic effects, making individual-as-maximizing agent analogies unattractive (although formally correct) under general situations of social interactions. We also feel that there is an inconsistency in Grafen's characterization of the solution of his maximization program by use of inclusive fitness arguments. His results are in conflict with those on evolutionary stable strategies obtained by applying inclusive fitness theory, and can be repaired only by changing the definition of the problem.
Mots-clé
Fitness, Inclusive fitness, Maximization, Optimization program, Game theory, Dynamic sufficiency
Web of science
Création de la notice
08/04/2013 18:08
Dernière modification de la notice
20/08/2019 14:04
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