Population demography and the evolution of helping behaviors.

  title={Population demography and the evolution of helping behaviors.},
  author={Laurent Lehmann and Nicolas Perrin and François Rousset},
  journal={Evolution; international journal of organic evolution},
  volume={60 6},
Limited dispersal may favor the evolution of helping behaviors between relatives as it increases their relatedness, and it may inhibit such evolution as it increases local competition between these relatives. Here, we explore one way out of this dilemma: if the helping behavior allows groups to expand in size, then the kin-competition pressure opposing its evolution can be greatly reduced. We explore the effects of two kinds of stochasticity allowing for such deme expansion. First, we study the… CONTINUE READING


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