Cookies Policy
Cookie Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Costs and Benefits of Group Foraging in the Teal (Anas Crecca)

MyBook is a cheap paperback edition of the original book and will be sold at uniform, low price.

Buy this article

$30.00+ Tax (if applicable)
Add to Favorites

image of Behaviour

This study examines group foraging in the teal (Anas crecca) in the light of some hypothesized foraging and anti-predator effects of grouping. Results suggest that group foraging in the teal acts as an adaptation to exploit spatially and temporally variable feeding environments. First, in a particular feeding patch, teals responded numerically to the variation in prey abundance. Second, foraging groups attracted teals flying over them. Third, arrivals landed close to the foragers and copied feeding methods used by them. However, the use of marginal feeding sites within the patch increased with group size. This disadvantage and the disturbance and exploitation of prey at and near the water surface may decrease foraging efficiency in large groups. Contrary to the results of several other studies, time-budgeting advantage in terms of increased feeding time and decreased vigilance time seemed not to be an important anti-predator benefit of grouping in the teal.

Affiliations: 1: (Department of Biology, University of Joensuu, P.O. Box 111, SF-80101 Joensuu, Finland


Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Create email alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
    Behaviour — Recommend this title to your library

    Thank you

    Your recommendation has been sent to your librarian.

  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation