Population Differences in Effects of Fish on Physa integra Refuge Use

  • Bernot R
  • Whittinghill K
  • 21


    Mendeley users who have this article in their library.
  • 11


    Citations of this article.


Prey populations exposed to different sets of predators often adopt distinct antipredator behaviors. We investigated the refuge use of a freshwater pulmonate snail, Physa integra, in the presence and absence of fish predators. Over 80% of snails in sites with fish used refuge, while only 50% used refuge in sites without fish. Snails in sites with fish were also significantly smaller than snails in sites without fish. In a laboratory experiment, the presence of fish did not alter the habitat use of snails collected from a no-fish site, whereas snails collected from a site with fish used refuge when exposed to predation risk. These results support the hypothesis that P. integra exhibit local behavioral adaptations to their predator regime.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Randall J. Bernot

  • Kyle Whittinghill

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free