A strategy to increase cooperation in the volunteer's dilemma: reducing vigilance improves alarm calls.

@article{Archetti2011AST,
  title={A strategy to increase cooperation in the volunteer's dilemma: reducing vigilance improves alarm calls.},
  author={Marco Archetti},
  journal={Evolution; international journal of organic evolution},
  year={2011},
  volume={65 3},
  pages={885-92}
}
One of the most common examples of cooperation in animal societies is giving the alarm in the presence of a predator. A reduction in individual vigilance against predators when group size increases (the "group size effect") is one of the most frequently reported relationships in the study of animal behavior, and is thought to be due to relaxed selection, either because more individuals can detect the predator more easily (the "many eyes" effect) or because the risk of predator attack is diluted… CONTINUE READING

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References

Publications referenced by this paper.
Showing 1-10 of 11 references

The evolution of cooperation

  • G. Beauchamp
  • Science
  • 2003
2 Excerpts

What is the magnitude of the group - size effect on vigilance ?

  • T. H. Clutton-Brock
  • Behav . Ecol .
  • 1999
1 Excerpt

Volunteer ’ s Dilemma

  • C. Hauert
  • 1985

The scanning behavior of juncos : a game - theoretical approach

  • H. R. Pulliam, G. H. Pyke, T. Caraco
  • J . Theor . Biol .
  • 1982
1 Excerpt

Geometry for the selfish herd

  • A. I. Houston
  • J . Theor . Biol .
  • 1971

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