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dc.contributor.authorAntal, Tibor
dc.contributor.authorOhtsuki, Hisashi
dc.contributor.authorWakeley, John R.
dc.contributor.authorTaylor, Peter D.
dc.contributor.authorNowak, Martin A.
dc.date.accessioned2010-07-23T17:42:24Z
dc.date.issued2009
dc.identifier.citationAntal Tibor, Hisashi Ohtsuki, John Wakeley, Peter D. Taylor, and Martin A. Nowak. 2009. Evolution of cooperation by phenotypic similarity. Proceedings of the National Academy of Sciences USA 106(21): 8597-8600.en_US
dc.identifier.issn0027-8424en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:4316891
dc.description.abstractThe emergence of cooperation in populations of selfish individuals is a fascinating topic that has inspired much work in theoretical biology. Here, we study the evolution of cooperation in a model where individuals are characterized by phenotypic properties that are visible to others. The population is well mixed in the sense that everyone is equally likely to interact with everyone else, but the behavioral strategies can depend on distance in phenotype space. We study the interaction of cooperators and defectors. In our model, cooperators cooperate with those who are similar and defect otherwise. Defectors always defect. Individuals mutate to nearby phenotypes, which generates a random walk of the population in phenotype space. Our analysis brings together ideas from coalescence theory and evolutionary game dynamics. We obtain a precise condition for natural selection to favor cooperators over defectors. Cooperation is favored when the phenotypic mutation rate is large and the strategy mutation rate is small. In the optimal case for cooperators, in a one-dimensional phenotype space and for large population size, the critical benefit-to-cost ratio is given by Formula. We also derive the fundamental condition for any two-strategy symmetric game and consider high-dimensional phenotype spaces.en_US
dc.description.sponsorshipMathematicsen_US
dc.description.sponsorshipOrganismic and Evolutionary Biologyen_US
dc.language.isoen_USen_US
dc.publisherNational Academy of Sciencesen_US
dc.relation.isversionofdoi:10.1073/pnas.0902528106en_US
dc.relation.hasversionhttp://www.ped.fas.harvard.edu/people/faculty/all_publications.html#2009en_US
dash.licenseLAA
dc.subjectcoalescent theoryen_US
dc.subjectevolutionary dynamicsen_US
dc.subjectevolutionary game theoryen_US
dc.subjectmathematical biologyen_US
dc.subjectstochastic processen_US
dc.titleEvolution of Cooperation by Phenotypic Similarityen_US
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden_US
dc.relation.journalProceedings- National Academy of Sciences Usaen_US
dash.depositing.authorNowak, Martin A.
dc.date.available2014-10-22T07:30:42Z
dc.identifier.doi10.1073/pnas.0902528106*
workflow.legacycommentsBrightening on 10/21/2014, per new OSC interpretation of PNAS policy.
dash.contributor.affiliatedAntal, Tibor
dash.contributor.affiliatedWakeley, John
dash.contributor.affiliatedNowak, Martin


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