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  Evil green beards: Tag recognition can also be used to withhold cooperation instructured populations

García, J., van Veelen, M., & Traulsen, A. (2014). Evil green beards: Tag recognition can also be used to withhold cooperation instructured populations. Journal of Theoretical Biology, 360, 181-186. doi:10.1016/j.jtbi.2014.07.002.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0023-C29D-E Version Permalink: http://hdl.handle.net/21.11116/0000-0004-CE52-8
Genre: Journal Article

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 Creators:
García, Julián1, Author              
van Veelen, Matthijs, Author
Traulsen, Arne1, Author              
Affiliations:
1Research Group Evolutionary Theory, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_1445641              

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Free keywords: Evolution; evolutionary dynamics
 Abstract: Natural selection works against cooperation unless a specific mechanism is at work. These mechanisms are typically studied in isolation. Here we look at the interaction between two such mechanisms: tag recognition and population structure. If cooperators can recognize each other, and only cooperate among themselves, then they can invade defectors. This is known as the green beard effect. Another mechanism is assortment caused by population structure. If interactions occur predominantly between alike individuals, then indiscriminate cooperation can evolve. Here we show that these two mechanisms interact in a non-trivial way. When assortment is low, tags lead to conventional green beard cycles with periods of tag based cooperation and periods of defection. However, if assortment is high, evil green beard cycles emerge. In those cycles, tags are not used to build up cooperation with others that share the tag, but to undermine cooperation with others that do not share the tag. High levels of assortment therefore do not lead to indiscriminate cooperation if tags are available. This shows that mechanisms that are known to promote cooperation in isolation can interact in counterintuitive ways.

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Language(s): eng - English
 Dates: 2014-06-302014-04-112014-07-012014-07-102014
 Publication Status: Published in print
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 Identifiers: DOI: 10.1016/j.jtbi.2014.07.002
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Title: Journal of Theoretical Biology
  Other : J. Theor. Biol.
Source Genre: Journal
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Publ. Info: London : Academic Press
Pages: - Volume / Issue: 360 Sequence Number: - Start / End Page: 181 - 186 Identifier: ISSN: 0022-5193 (print)
ISSN: 1095-8541 (online)
CoNE: https://pure.mpg.de/cone/journals/resource/954922646048