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Appears in Collections:Computing Science and Mathematics Journal Articles
Peer Review Status: Refereed
Title: Maternal effects on offspring consumption can stabilize fluctuating predator–prey systems
Authors: Garbutt, Jennie
Little, Tom J
Hoyle, Andrew
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Issue Date: 7-Dec-2015
Publisher: The Royal Society
Citation: Garbutt J, Little TJ & Hoyle A (2015) Maternal effects on offspring consumption can stabilize fluctuating predator–prey systems, Proceedings of the Royal Society B: Biological Sciences, 282 (1820), Art. No.: 20152173.
Abstract: Maternal effects, where the conditions experienced by mothers affect thephenotype of their offspring, are widespread in nature and have the potentialto influence population dynamics. However, they are very rarelyincluded in models of population dynamics. Here, we investigate a recentlydiscovered maternal effect, where maternal food availability affects the feedingrate of offspring so that well-fed mothers produce fast-feeding offspring.To understand how this maternal effect influences population dynamics, weexplore novel predator–prey models where the consumption rate of predatorsis modified by changes in maternal prey availability. We address the‘paradox of enrichment’, a theoretical prediction that nutrient enrichmentdestabilizes populations, leading to cycling behaviour and an increasedrisk of extinction, which has proved difficult to confirm in the wild. Ourmodels show that enriched populations can be stabilized by maternal effectson feeding rate, thus presenting an intriguing potential explanation for thegeneral absence of ‘paradox of enrichment’ behaviour in natural populations.This stabilizing influence should also reduce a population’s risk ofextinction and vulnerability to harvesting.
Type: Journal Article
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Rights: This item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. Publisher policy allows this work to be made available in this repository. Published in Proceedings of the Royal Society B 282:20152173 by The Royal Society. The original publication is available at:
Affiliation: University of Edinburgh
University of Edinburgh
Mathematics - CSM Dept

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