Predator-mediated phenotypic plasticity in tadpoles of the striped marsh frog, Limnodynastes peronii

Kraft, P. G., Wilson, R. S. and Franklin, C. E. (2005) Predator-mediated phenotypic plasticity in tadpoles of the striped marsh frog, Limnodynastes peronii. Austral Ecology, 30 5: 558-563. doi:10.1111/j.1442-9993.2005.01469.x


Author Kraft, P. G.
Wilson, R. S.
Franklin, C. E.
Title Predator-mediated phenotypic plasticity in tadpoles of the striped marsh frog, Limnodynastes peronii
Journal name Austral Ecology   Check publisher's open access policy
ISSN 1442-9985
Publication date 2005-01-01
Sub-type Article (original research)
DOI 10.1111/j.1442-9993.2005.01469.x
Volume 30
Issue 5
Start page 558
End page 563
Total pages 6
Editor Michael Bull
Place of publication Oxford
Publisher Blackwell Publishing Asia
Language eng
Subject C1
270700 Ecology and Evolution
780105 Biological sciences
Abstract We tested the phenotypic responses of larval striped marsh frogs (Limnodynastes peronii) to the odonate nymph predator, Aeshna brevistyla. When reared in the presence of dragonfly nymphs feeding upon conspecifics of L. peronii larvae the tadpoles showed a strong change in morphology. Morphological changes included an increase in total tail height, but also an unexpected marked change in head-body shape. In addition, we examined how tadpole development, as well as mass and length at metamorphosis, was affected by exposure to dragonfly nymphs. Larval development of L. peronii was strongly influenced by exposure to the predatory behaviour of dragonfly nymphs. Predator-induced tadpoles had significantly slower developmental rates than control larvae. Although metamorphs of non-exposed L. peronii were approximately 33% lighter than predator-exposed metamorphs and possessed lower jump distances, after adjusting for mass there was no difference in jump distance. The newly described morphological response may assist in more accurately relating morphological plasticity to fitness.
Keyword Growth Rate
Induced Response
Larval Development
Morphology
Performance
Ecology
2 Anuran Tadpoles
Adaptive Plasticity
Inducible Defense
Life-history
Tail Shape
Responses
Behavior
Larvae
Costs
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 16:04:06 EST