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  Evolution of cooperation by multilevel selection

Traulsen, A., & Nowak, M. A. (2006). Evolution of cooperation by multilevel selection. Proceedings of the National Academy of Sciences of the United States of America, 103(29), 10952-10955. doi:10.1073/pnas.0602530103.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-1009-1 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-100A-0
Genre: Journal Article

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 Creators:
Traulsen, Arne1, Author              
Nowak, Martin A.2, Author
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1External, ou_persistent22              
2external, ou_persistent22              

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 Abstract: We propose a minimalist stochastic model of multilevel (or group) selection. A population is subdivided into groups. Individuals interact with other members of the group in an evolutionary game that determines their fitness. Individuals reproduce, and offspring are added to the same group. If a group reaches a certain size, it can split into two. Faster reproducing individuals lead to larger groups that split more often. In our model, higher-level selection emerges as a byproduct of individual reproduction and population structure. We derive a fundamental condition for the evolution of cooperation by group selection: if b/c > 1 + n/m, then group selection favors cooperation. The parameters b and c denote the benefit and cost of the altruistic act, whereas n and m denote the maximum group size and the number of groups. The model can be extended to more than two levels of selection and to include migration.

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 Dates: 20062006
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
 Identifiers: ISI: 000239327200025
DOI: 10.1073/pnas.0602530103
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Title: Proceedings of the National Academy of Sciences of the United States of America
  Other : Proc. Natl. Acad. Sci. U. S. A.
Source Genre: Journal
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Publ. Info: National Academy of Sciences
Pages: - Volume / Issue: 103 (29) Sequence Number: - Start / End Page: 10952 - 10955 Identifier: ISSN: 0027-8424
CoNE: /journals/resource/954925427230