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Individual memory and the emergence of cooperation

2013-01-01Artigo científico Acesso aberto
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dc.contributor.authorMoreira, João
dc.contributor.authorVukov, Jeromos
dc.contributor.authorSousa, Claudia Maria A. Margato Ramalho
dc.contributor.authorSantos, Francisco C.
dc.contributor.authorD'Almeida, André F.
dc.contributor.authorSantos, Marta D.
dc.contributor.authorPacheco, Jorge M.
dc.contributor.institutionDepartamento de Antropologia (DA)
dc.contributor.institutionCentro em Rede de Investigação em Antropologia (CRIA - NOVA FCSH)
dc.contributor.pblElsevier Science B.V., Amsterdam.
dc.date.accessioned2019-02-28T23:09:31Z
dc.date.available2019-02-28T23:09:31Z
dc.date.issued2013-01-01
dc.descriptionUID/ANT/04038/2013 PEst-OE/SADG/UI4038/2011
dc.description.abstractThe social brain hypothesis states that selection pressures associated with complex social relationships have driven the evolution of sophisticated cognitive processes in primates. We investigated how the size of cooperative primate communities depends on the memory of each of its members and on the pressure exerted by natural selection. To this end we devised an evolutionary game theoretical model in which social interactions are modelled in terms of a repeated Prisoner's Dilemma played by individuals who may exhibit a different memory capacity. Here, memory is greatly simplified and mapped onto a single parameter m describing the number of conspecifics whose previous action each individual can remember. We show that increasing m enables cooperation to emerge and be maintained in groups of increasing sizes. Furthermore, harsher social dilemmas lead to the need for a higher m in order to ensure high levels of cooperation. Finally, we show how the interplay between the dilemma individuals face and their memory capacity m allows us to define a critical group size below which cooperation may thrive, and how this value depends sensitively on the strength of natural selection.en
dc.description.versionauthorsversion
dc.description.versionpublished
dc.format.extent7
dc.format.extent316003
dc.identifier.doi10.1016/j.anbehav.2012.10.030
dc.identifier.issn0003-3472
dc.identifier.otherPURE: 4233131
dc.identifier.otherPURE UUID: d21b07c4-2606-4091-a512-c4e7c411fee9
dc.identifier.otherScopus: 84872337131
dc.identifier.urihttp://www.scopus.com/inward/record.url?scp=84872337131&partnerID=8YFLogxK
dc.identifier.urlhttps://www.scopus.com/pages/publications/84872337131
dc.language.isoeng
dc.peerreviewedyes
dc.relationinfo:eu-repo/grantAgreement/FCT/5876/147310/PT
dc.subjectCooperation
dc.subjectEvolutionary game theory
dc.subjectMemory
dc.subjectReciprocity
dc.subjectEcology, Evolution, Behavior and Systematics
dc.subjectAnimal Science and Zoology
dc.titleIndividual memory and the emergence of cooperationen
dc.typejournal article
degois.publication.firstPage233
degois.publication.issue1
degois.publication.lastPage239
degois.publication.titleAnimal Behaviour
degois.publication.volume85
dspace.entity.typePublication
oaire.awardNumberUID/ANT/04038/2013
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FANT%2F04038%2F2013/PT
oaire.fundingStream5876
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
relation.isProjectOfPublication37c8222e-443c-4de2-a36e-b9c739e067ba
relation.isProjectOfPublication.latestForDiscovery37c8222e-443c-4de2-a36e-b9c739e067ba

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