Behavioural trade-offs between growth and mortality explain evolution of submaximal growth rates Biro, Peter A., Abrahams, Mark V., Post, John R. and Parkinson, Eric A. 2006, Behavioural trade-offs between growth and mortality explain evolution of submaximal growth rates, Journal of animal ecology, vol. 75, no. 5, pp. 1165-1171, doi: 10.1111/j.1365-2656.2006.01137.x. Attached Files Name Description MIMEType Size Downloads Title Behavioural trade-offs between growth and mortality explain evolution of submaximal growth rates Author(s) Biro, Peter A. orcid.org/0000-0002-3565-240X Abrahams, Mark V. Post, John R. Parkinson, Eric A. Journal name Journal of animal ecology Volume number 75 Issue number 5 Start page 1165 End page 1171 Total pages 7 Publisher Wiley-Blackwell Publishing Place of publication Oxford, England Publication date 2006-09 ISSN 0021-8790 1365-2656 Keyword(s) activity antipredator genotype habitat use trout Summary 1. The importance of body size and growth rate in ecological interactions is widely recognized, and both are frequently used as surrogates for fitness. However, if there are significant costs associated with rapid growth rates then its fitness benefits may be questioned. 2. In replicated whole-lake experiments, we show that a domestic strain of rainbow trout (artificially selected for maximum intrinsic growth rate) use productive but risky habitats more than wild trout. Consequently, domestic trout grow faster in all situations, experience greater survival in the absence of predators, but have lower survival in the presence of predators. Therefore, rapid growth rates are selected against due to increased foraging effort (or conversely, lower antipredator behaviour) that increases vulnerability to predators. In other words, there is a behaviourally mediated trade-off between growth and mortality rates. 3. Whereas rapid growth is beneficial in many ecological interactions, our results show the mortality costs of achieving it are large in the presence of predators, which can help explain the absence of an average phenotype with maximized growth rates in nature. Language eng DOI 10.1111/j.1365-2656.2006.01137.x Field of Research 060201 Behavioural Ecology 060801 Animal Behaviour Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences HERDC Research category C1.1 Refereed article in a scholarly journal Copyright notice ©2006, The Authors Persistent URL http://hdl.handle.net/10536/DRO/DU:30047973 Document type: Journal Article Collections: School of Life and Environmental Sciences Centre for Integrative Ecology Related Links Link Description Connect to published version (restricted access) Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Mon, 03 Sep 2012, 14:24:15 EST Tue, 11 Sep 2012, 13:31:20 EST Filtered Full Citation counts:   Cited 127 times in TR Web of Science Cited 134 times in Scopus Search Google Scholar Access Statistics: 185 Abstract Views, 1 File Downloads  -  Detailed Statistics Created: Mon, 03 Sep 2012, 14:24:15 EST

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