Publicação
Solving the prisoner's dilemma trap in Hamilton's model of temporarily formed random groups
| dc.contributor.author | José F. Fontanari | |
| dc.contributor.author | Mauro Santos | |
| dc.date.accessioned | 2024-12-09T17:35:40Z | |
| dc.date.embargo | 2025-12 | |
| dc.date.issued | 2024-12-02 | |
| dc.description.abstract | Explaining the evolution of cooperation in the strong altruism scenario, where a cooperator does not benefit from her contribution to the public goods, is a challenging problem that requires positive assortment among cooperators (i.e., cooperators must tend to associate with other cooperators) or punishment of defectors. The need for these drastic measures stems from the analysis of a group selection model of temporarily formed random groups introduced by Hamilton nearly fifty years ago to describe the fate of altruistic behavior in a population. Challenging conventional wisdom, we show analytically here that strong altruism evolves in Hamilton's original model in the case of biparental sexual reproduction. Moreover, when the cost of cooperation is small and the amplified contribution shared by group members is large, cooperation is the only stable strategy in equilibrium. Thus, our results provide a solution to the `problem of origination' of strong altruism, i.e. how cooperation can take off from an initial low frequency of cooperators. We discuss a possible reassessment of cooperation in cases of viral co-infection, as cooperation may even be favored in situations where the prisoner's dilemma applies. | pt_PT |
| dc.description.version | info:eu-repo/semantics/acceptedVersion | pt_PT |
| dc.identifier.citation | Fontanari JF, M Santos. 2024. Solving the prisoner’s dilemma trap in Hamilton’s model of temporarily formed random groups. J. Theor. Biol. https://doi.org/10.1016/j.jtbi.2024.111946 | pt_PT |
| dc.identifier.doi | 10.1016/j.jtbi.2024.111946 | pt_PT |
| dc.identifier.uri | http://hdl.handle.net/10400.5/96153 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | Elsevier | pt_PT |
| dc.relation | JFF is partially supported by Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brazil), grant number 305620/2021-5 | pt_PT |
| dc.relation | MS is funded by grant PID2021-127107NB-I00 from Ministerio de Ciencia e Innovación (Spain) and grant 2021 SGR 00526 from Generalitat de Catalunya | pt_PT |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | pt_PT |
| dc.title | Solving the prisoner's dilemma trap in Hamilton's model of temporarily formed random groups | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.startPage | 111946 | pt_PT |
| oaire.citation.title | Journal of Theoretical Biology | pt_PT |
| oaire.citation.volume | 595 | pt_PT |
| rcaap.embargofct | O tipo de licença envolvido com a editora desta revista, não envolvendo pagamento (APC), apenas permite acesso em repositório público do formato 'aceite' (i.e não editado e paginado pela editora) após período de embargo de 24 meses após a data da sua publicação final. | pt_PT |
| rcaap.rights | embargoedAccess | pt_PT |
| rcaap.type | article | pt_PT |
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