Exploring the Link between Genetic Relatedness r and Social Contact Structure k in Animal Social Networks |
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Authors: | Wolf Jochen B W Traulsen Arne James Richard |
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Affiliation: | Department of Evolutionary Genetics, Max Planck Institute for Evolutionary Biology, 24306 Pl?n, Germany. jochen.wolf@ebc.uu.se |
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Abstract: | Our understanding of how cooperation can arise in a population of selfish individuals has been greatly advanced by theory. More than one approach has been used to explore the effect of population structure. Inclusive fitness theory uses genetic relatedness r to express the role of population structure. Evolutionary graph theory models the evolution of cooperation on network structures and focuses on the number of interacting partners k as a quantity of interest. Here we use empirical data from a hierarchically structured animal contact network to examine the interplay between independent, measurable proxies for these key parameters. We find strong inverse correlations between estimates of r and k over three levels of social organization, suggesting that genetic relatedness and social contact structure capture similar structural information in a real population. |
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