Symmetry-based reciprocity: evolutionary constraints on a proximate mechanism

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...

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Main Authors: Marco Campennì, Gabriele Schino
Format: Article
Language:English
Published: PeerJ Inc. 2016-03-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/1812.pdf
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author Marco Campennì
Gabriele Schino
author_facet Marco Campennì
Gabriele Schino
author_sort Marco Campennì
collection DOAJ
description 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-based models 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 stand competition from 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.
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spelling doaj.art-771333e6a7324a1399ad8709c4d2f02e2023-12-03T07:08:51ZengPeerJ Inc.PeerJ2167-83592016-03-014e181210.7717/peerj.1812Symmetry-based reciprocity: evolutionary constraints on a proximate mechanismMarco Campennì0Gabriele Schino1Stockholm Resilience Centre, Stockholms Universitet, Stockholm, SwedenIstituto di Scienze e Tecnologie della Cognizione, Consiglio Nazionale delle Ricerche, Rome, ItalyBackground. 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-based models 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 stand competition from 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.https://peerj.com/articles/1812.pdfReciprocityProximate mechanismsEvolutionAgent-based models
spellingShingle Marco Campennì
Gabriele Schino
Symmetry-based reciprocity: evolutionary constraints on a proximate mechanism
PeerJ
Reciprocity
Proximate mechanisms
Evolution
Agent-based models
title Symmetry-based reciprocity: evolutionary constraints on a proximate mechanism
title_full Symmetry-based reciprocity: evolutionary constraints on a proximate mechanism
title_fullStr Symmetry-based reciprocity: evolutionary constraints on a proximate mechanism
title_full_unstemmed Symmetry-based reciprocity: evolutionary constraints on a proximate mechanism
title_short Symmetry-based reciprocity: evolutionary constraints on a proximate mechanism
title_sort symmetry based reciprocity evolutionary constraints on a proximate mechanism
topic Reciprocity
Proximate mechanisms
Evolution
Agent-based models
url https://peerj.com/articles/1812.pdf
work_keys_str_mv AT marcocampenni symmetrybasedreciprocityevolutionaryconstraintsonaproximatemechanism
AT gabrieleschino symmetrybasedreciprocityevolutionaryconstraintsonaproximatemechanism