Can Selfish Symbioses Effect Higher-Level Selection?

Détails

Ressource 1Télécharger: BIB_34126E4E90B8.P001.pdf (503.88 [Ko])
Etat: Public
Version: Final published version
ID Serval
serval:BIB_34126E4E90B8
Type
Partie de livre
Collection
Publications
Titre
Can Selfish Symbioses Effect Higher-Level Selection?
Titre du livre
Advances in Artificial Life. Darwin Meets von Neumann
Auteur(s)
Watson R., Palmius N., Mills R., Powers S. T., Penn A. S.
Editeur
Springer
Statut éditorial
Publié
Date de publication
2011
Editeur scientifique
Kampis G., Karsai I., Szathmáry E.
Volume
5778/2011
Série
Lecture Notes in Computer Science
Pages
27-36
Langue
anglais
Résumé
The role of symbiosis in macro-evolution is poorly understood. On the one hand, symbiosis seems to be a perfectly normal manifestation of individual selection, on the other hand, in some of the major transitions in evolution it seems to be implicated in the creation of new higher-level units of selection. Here we present a model of individual selection for symbiotic relationships where individuals can genetically specify traits which partially control which other species they associate with - i.e. they can evolve species-specific grouping. We find that when the genetic evolution of symbiotic relationships occurs slowly compared to ecological population dynamics, symbioses form which canalise the combinations of species that commonly occur at local ESSs into new units of selection. Thus even though symbioses will only evolve if they are beneficial to the individual, we find that the symbiotic groups that form are selectively significant and result in combinations of species that are more cooperative than would be possible under individual selection. These findings thus provide a systematic mechanism for creating significant higher-level selective units from individual selection, and support the notion of a significant and systematic role of symbiosis in macro-evolution.
Création de la notice
22/01/2012 22:18
Dernière modification de la notice
20/08/2019 14:20
Données d'usage