Exploring the link between genetic relatedness r and social contact structure k 
in animal social networks

Wolf, Jochen B. W.; Traulsen, Arne; James, Richard

doi:10.1086/657442

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Exploring the link between genetic relatedness r and social contact structure k in animal social networks

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Wolf, Jochen B. W.
Department Evolutionary Genetics, Max Planck Institute for Evolutionary Biology, Max Planck Society;

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Traulsen, Arne
Research Group Evolutionary Theory, Max Planck Institute for Evolutionary Biology, Max Planck Society;

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Citation

Wolf, J. B. W., Traulsen, A., & James, R. (2011). Exploring the link between genetic relatedness r and social contact structure k in animal social networks. The American Naturalist, 177(1), 135-142. doi:10.1086/657442.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-D418-A

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.