The Effect of Predation on Tadpole Morphology of the Spotted Frog (Rana luteiventris)
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Authors
Simons, Reed
Advisor
Grant Hokit
John Addis
Jack Oberweiser
John Addis
Jack Oberweiser
Editor
Date of Issue
2002-04-01
Subject Keywords
colombia spotted frog, Rana lutieventris
Publisher
Citation
Series/Report No.
item.page.identifier
Title
The Effect of Predation on Tadpole Morphology of the Spotted Frog (Rana luteiventris)
Other Titles
Type
thesis
Description
Abstract
A field experiment was performed to examine the effects of predation on the morphology of the spotted frog (Rana luteiventris). Seven ponds were randomly selected for survey in the Helena National Forest. Macroinvertebrate predators were counted and tadpoles were collected to measure morphological characteristics. Statistical analysis demonstrated that predation had a significant overall effect on tail morphology. Specifically, the higher number of predators in a pond, the longer the tail, the thicker the tail muscle, and the more narrow the mouth width of tadpoles. These induced changes presumably increase swimming speed, improving predator evasion. Interactions with other members of the aquatic community are likely to be influenced as well. This study provides further evidence for predator-induced plasticity in amphibian larvae.
Sponsors
Degree Awarded
Bachelor's
Semester
Spring
Department
Life & Environmental Sciences