Bassar, R.D., Childs, D.Z., Rees, M. orcid.org/0000-0001-8513-9906 et al. (3 more authors) (2016) The effects of asymmetric competition on the life history of Trinidadian guppies. Ecology Letters, 19 (3). pp. 268-278. ISSN 1461-023X
Abstract
The effects of asymmetric interactions on population dynamics has been widely investigated, but there has been little work aimed at understanding how life history parameters like generation time, life expectancy and the variance in lifetime reproductive success are impacted by different types of competition. We develop a new framework for incorporating trait-mediated density-dependence into size-structured models and use Trinidadian guppies to show how different types of competitive interactions impact life history parameters. Our results show the degree of symmetry in competitive interactions can have dramatic effects on the speed of the life history. For some vital rates, shifting the competitive superiority from small to large individuals resulted in a doubling of the generation time. Such large influences of competitive symmetry on the timescale of demographic processes, and hence evolution, highlights the interwoven nature of ecological and evolutionary processes and the importance of density-dependence in understanding eco-evolutionary dynamics
Metadata
Item Type: | Article |
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Authors/Creators: |
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Editors: |
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Copyright, Publisher and Additional Information: | © 2016 The Authors Ecology Letters published by CNRS and John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited |
Keywords: | Asymmetrical competition;contest competition;integral projection model;interaction surface;mesocosm;scramble competition;symmetrical competition |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > School of Biosciences (Sheffield) > Department of Animal and Plant Sciences (Sheffield) |
Funding Information: | Funder Grant number LEVERHULME TRUST (THE) RF-2013-015 NATURAL ENVIRONMENT RESEARCH COUNCIL NE/K014048/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 19 Jul 2016 11:57 |
Last Modified: | 19 Jul 2016 11:57 |
Published Version: | http://dx.doi.org/10.1111/ele.12563 |
Status: | Published |
Publisher: | Wiley |
Refereed: | Yes |
Identification Number: | 10.1111/ele.12563 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:101707 |