The evolutionary origin of cooperators and defectors.

@article{Doebeli2004TheEO,
  title={The evolutionary origin of cooperators and defectors.},
  author={Michael Doebeli and Christoph Hauert and Timothy P Killingback},
  journal={Science},
  year={2004},
  volume={306 5697},
  pages={859-62}
}
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… CONTINUE READING
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