Female guppies shorten brood retention in response to predator cues

  title={Female guppies shorten brood retention in response to predator cues},
  author={Jonathan P. Evans and Clelia Gasparini and Andrea Pilastro},
  journal={Behavioral Ecology and Sociobiology},
Predation risk influences the duration of offspring development in many species where embryos develop from externally shed eggs. Surprisingly, such predator-mediated effects on offspring development have rarely been explored in live-bearers. In this paper, we use the guppy (Poecilia reticulata), a live-bearing freshwater fish, to test whether the duration of brood retention (the time from mating to parturition) is influenced by experimental changes in the perceived level of predation. Because… CONTINUE READING

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