| The evolutionary origin of cooperators and defectors. | |
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MedLine Citation:
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PMID: 15514155 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Coexistence of cooperators and defectors is common in nature, yet the evolutionary origin of such social diversification is unclear. Many models have been studied on the basis of the assumption that benefits of cooperative acts only accrue to others. Here, we analyze the continuous snowdrift game, in which cooperative investments are costly but yield benefits to others as well as to the cooperator. Adaptive dynamics of investment levels often result in evolutionary diversification from initially uniform populations to a stable state in which cooperators making large investments coexist with defectors who invest very little. Thus, when individuals benefit from their own actions, large asymmetries in cooperative investments can evolve. |
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Authors:
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Michael Doebeli; Christoph Hauert; Timothy Killingback |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Science (New York, N.Y.) Volume: 306 ISSN: 1095-9203 ISO Abbreviation: Science Publication Date: 2004 Oct |
Date Detail:
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Created Date: 2004-10-29 Completed Date: 2004-11-22 Revised Date: 2007-03-19 |
Medline Journal Info:
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Nlm Unique ID: 0404511 Medline TA: Science Country: United States |
Other Details:
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Languages: eng Pagination: 859-62 Citation Subset: IM |
Affiliation:
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Department of Zoology and Department of Mathematics, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada. doebeli@zoology.ubc.ca |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Altruism Cooperative Behavior* Cultural Evolution Evolution* Game Theory* Humans Mathematics |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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