Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

Quantifying the Relation between Predator-Induced Behavior and Growth Performance in Larval Anurans

Rick A. Relyea and Earl E. Werner
Ecology
Vol. 80, No. 6 (Sep., 1999), pp. 2117-2124
Published by: Wiley
DOI: 10.2307/176682
Stable URL: http://www.jstor.org/stable/176682
Page Count: 8
  • Download ($42.00)
  • Subscribe ($19.50)
  • Cite this Item
Quantifying the Relation between Predator-Induced Behavior and Growth Performance in Larval Anurans
Preview not available

Abstract

Because the nature and magnitude of species interactions are functions of the traits that species possess, understanding how individual traits affect performance is important to our understanding of community structure. To examine the relation between species traits and performance, we first assessed behavioral responses of two larval anurans to three predator species in the laboratory. We then correlated these responses with growth performance of the two anurans when they competed in the field. In the laboratory experiment, larval bullfrogs (Rana catesbeiana) and green frogs (R. clamitans) exhibited no reduction in activity or spatial avoidance to bluegill sunfish (Lepomis macrochirus), moderate reductions in activity and spatial avoidance of mudminnows (Umbra limi), and large reductions in activity and spatial avoidance of larval dragonflies (Anax spp.). In the field experiment, these behavioral responses were directly related to corresponding reductions in growth of the anuran larvae. Thus, for both species, changes in growth in the field could be correlated to the behavioral responses observed in the laboratory. Further, proportional changes in behavior in the presence of the different predators appeared to be related to changes in competitive relations in the field.

Page Thumbnails

  • Thumbnail: Page 
2117
    2117
  • Thumbnail: Page 
2118
    2118
  • Thumbnail: Page 
2119
    2119
  • Thumbnail: Page 
2120
    2120
  • Thumbnail: Page 
2121
    2121
  • Thumbnail: Page 
2122
    2122
  • Thumbnail: Page 
2123
    2123
  • Thumbnail: Page 
2124
    2124