Vigilance for predators: detection and dilution effects

@article{Delm1990VigilanceFP,
  title={Vigilance for predators: detection and dilution effects},
  author={Michael M. Delm},
  journal={Behavioral Ecology and Sociobiology},
  year={1990},
  volume={26},
  pages={337-342}
}
Grouped individuals are less vigilant for predators than solitary conspecifics because (1) grouping increases the likelihood of predator detection (detection effect) and (2) grouping makes it less likely that any given individual will be preyed upon (dilution effect). However, many models of vigilance behaviour consider only the detection effect, and the interaction of the two effects has been insufficiently considered. I present two models of vigilance behaviour and test them using data on the… CONTINUE READING

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