Risk of predation enhances the lethal effects of UV-B in amphibians

Alton, L.A., Wilson, R.S. and Franklin, C.E. (2010) Risk of predation enhances the lethal effects of UV-B in amphibians. Global Change Biology, 16 2: 538-545. doi:10.1111/j.1365-2486.2009.02010.x

Author Alton, L.A.
Wilson, R.S.
Franklin, C.E.
Title Risk of predation enhances the lethal effects of UV-B in amphibians
Journal name Global Change Biology   Check publisher's open access policy
ISSN 1354-1013
Publication date 2010-02
Year available 2009
Sub-type Article (original research)
DOI 10.1111/j.1365-2486.2009.02010.x
Open Access Status
Volume 16
Issue 2
Start page 538
End page 545
Total pages 8
Editor Steve Long
Place of publication Chichester, West Sussex, United Kingdom
Publisher Wiley-Blackwell Publishing
Collection year 2010
Language eng
Formatted abstract
Amphibian declines are a prominent part of the global biodiversity crisis and have received special consideration because they have occurred relatively recently, on a global scale, and in seemingly pristine habitats where no obvious anthropogenic cause is apparent. Although several causes for declines have been implicated, the isolation of a singular cause has proven elusive. Consequently, it has been hypothesized that complex interactions between multiple environmental stressors, particularly those associated with global change, may be responsible. Increasing ultraviolet-B radiation (UV-B) associated with stratospheric ozone depletion is one such stressor that has received considerable attention. UV-B causes enhanced lethal effects when combined with other factors such as aquatic pH, contaminants, temperature and pathogens, but little is known of how UV-B interacts with pervasive biological stressors, such as risk of predation. We exposed Limnodynastes peronii tadpoles to UV-B and predatory chemical cues in a controlled laboratory experiment to determine their independent and interactive effects on survival and morphology. We show that UV-B and risk of predation interact synergistically to enhance mortality above the additive effects of the independent stressors, and that exposure to UV-B affects the ability of tadpoles to morphologically respond to predatory chemical cues (i.e. predator-induced phenotypic plasticity), which has implications for their survival in an environment with predators. This highlights the importance of considering both anthropogenic and naturally occurring stressors when examining the underlying causes of amphibian declines.
Keyword Amphibian declines
Chemical cues
Multiple stressors
Ultraviolet-B radiation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online 22 June 2009

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Biological Sciences Publications
Ecology Centre Publications
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 22 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 22 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Tue, 24 Nov 2009, 15:29:52 EST by Gail Walter on behalf of School of Biological Sciences