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Symmetry-based reciprocity: evolutionary constraints on a proximate mechanism
Stockholm University, Faculty of Science, Stockholm Resilience Centre.
Number of Authors: 2
2016 (English)In: PeerJ, ISSN 2167-8359, E-ISSN 2167-8359, Vol. 4, e1812Article in journal (Refereed) Published
Abstract [en]

Background. While the evolution of reciprocal cooperation has attracted an enormous attention, the proximate mechanisms underlying the ability of animals to cooperate reciprocally are comparatively neglected. Symmetry-based reciprocity is a hypothetical proximate mechanism that has been suggested to be widespread among cognitively unsophisticated animals. Methods. We developed two agent-baseds model of symmetry-based reciprocity (one relying on an arbitrary tag and the other on interindividual proximity) and tested their ability both to reproduce significant emergent features of cooperation in group living animals and to promote the evolution of cooperation. Results. Populations formed by', agents adopting symmetry-based reciprocity showed differentiated social relationships and a positive correlation between cooperation given and received: two common aspects of animal cooperation. However, when reproduction and selection across multiple generations were added to the models, agents adopting symmetry-based reciprocity were outcompeted by selfish agents that never cooperated. Discussion. In order to evolve, hypothetical proximate mechanisms must be able to from stand competition alternative strategies. While the results of our simulations require confirmation using analytical methods, we provisionally suggest symmetry based reciprocity is to be abandoned as a possible proximate mechanism underlying the ability of animals to reciprocate cooperative interactions.

Place, publisher, year, edition, pages
2016. Vol. 4, e1812
Keyword [en]
Reciprocity, Proximate mechanisms, Evolution, Agent-based models
National Category
Other Natural Sciences
Identifiers
URN: urn:nbn:se:su:diva-129695DOI: 10.7717/peerj.1812ISI: 000372578300013PubMedID: 26998412OAI: oai:DiVA.org:su-129695DiVA: diva2:926431
Available from: 2016-05-06 Created: 2016-04-27 Last updated: 2016-05-06Bibliographically approved

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