Social networks in the guppy (Poecilia reticulata).

  title={Social networks in the guppy (Poecilia reticulata).},
  author={Darren P Croft and Jens Krause and Richard James},
  journal={Proceedings. Biological sciences},
  volume={271 Suppl 6},
Social network theory is used to elicit details of the social structure of a population of free-ranging guppies, Poecilia reticulata. They were found to have a complex and highly structured social network, which exhibited characteristics consistent with the 'small world' phenomenon. Stable partner associations between individuals were observed, a finding that fulfils the basic prerequisite for the evolution of reciprocal altruism. The findings are discussed in relation to the ecology and… CONTINUE READING
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