Spatial social dilemmas promote diversity

Christoph Hauert and Michael Doebeli
Additional contact information
Christoph Hauert: a Department of Mathematics, University of British Columbia, Vancouver, BC V6T 1Z2, Canada;; b Department of Zoology, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
Michael Doebeli: a Department of Mathematics, University of British Columbia, Vancouver, BC V6T 1Z2, Canada;; b Department of Zoology, University of British Columbia, Vancouver, BC V6T 1Z4, Canada

Proceedings of the National Academy of Sciences, 2021, vol. 118, issue 42, e2105252118

Abstract: Evolutionary branching and diversification in interactions with continuous behavioral traits is important for understanding the emergence of distinct, discrete, and coexisting strategies. In social dilemmas, this suggests an evolutionary pathway for the origin of cooperators and defectors. Here we study evolutionary diversification in structured populations and identify mechanisms driving spontaneous and persistent diversification. Through analytical and numerical techniques, we demonstrate that spatial structure admits new modes of diversification that complement classical evolutionary branching. In particular, when selection is strong, diversification tends to occur more readily than in unstructured populations.

Keywords: social dilemmas; adaptive dynamics; structured populations; continuous games; evolutionary branching (search for similar items in EconPapers)
Date: 2021
References: Add references at CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://www.pnas.org/content/118/42/e2105252118.full (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nas:journl:v:118:y:2021:p:e2105252118

Access Statistics for this article

More articles in Proceedings of the National Academy of Sciences from Proceedings of the National Academy of Sciences
Bibliographic data for series maintained by PNAS Product Team ().