Document Detail

Temporal coincidence of environmental stress events modulates predation rates.
MedLine Citation:
PMID:  22494161     Owner:  NLM     Status:  Publisher    
Ecology Letters (2012) ABSTRACT: Climate warming experiments generally test the ecological effects of constant treatments while neglecting the influence of more realistic patterns of environmental fluctuations. Thus, little is known regarding how the temporal interaction between multiple episodes of thermal stress influences biotic interactions. We measured the sensitivity of predation rate in an intertidal sea star to changing levels of temporal coincidence of underwater and aerial thermal stress events. In laboratory trials, we controlled for intensity, variance and temporal patterning of both underwater and aerial body temperature. Predation rate decreased as underwater and aerial thermal stress episodes became temporally non-coincident, despite a similar intensity and variance among treatments. Experiments under constant conditions were a poor predictor of more complex environmental scenarios because of these strong temporal interactions. Such temporal interactions may be widespread in various ecosystems, suggesting a strong need for empirical studies and models that link environmental complexity, physiology, behaviour and species interactions.
Sylvain Pincebourde; Eric Sanford; Jérôme Casas; Brian Helmuth
Publication Detail:
Type:  LETTER     Date:  2012-4-12
Journal Detail:
Title:  Ecology letters     Volume:  -     ISSN:  1461-0248     ISO Abbreviation:  -     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-4-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101121949     Medline TA:  Ecol Lett     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 Blackwell Publishing Ltd/CNRS.
University of South Carolina, Environment and Sustainability Program and Department of Biological Sciences, Columbia, SC 29208, USA Institut de Recherche sur la Biologie de l'Insecte, CNRS UMR 7261, Université François Rabelais, 37200 Tours, France Department of Evolution and Ecology, University of California, Davis, California 95616 and Bodega Marine Laboratory, Bodega Bay, CA 94923, USA.
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