| Evolution of the maturation rate collapses competitive coexistence. | |
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MedLine Citation:
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PMID: 16458325 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Most theoretical studies on character displacement and the coexistence of competing species have focused attention on the evolution of competitive traits driven by inter-specific competition. We investigated the evolution of the maturation rate which is not directly related to competition and trades off with the birth rate and how it influences competitive outcomes. Evolution may result in the superior competitor becoming extinct if, initially, the inferior competitor has a lower, and the superior one a higher, maturation rate at the coexistence equilibrium. This counterintuitive result is explained by an explosive increase in the adult population of the inferior competitor as a result of the more rapid evolution of its maturation rate, which is caused by differences in the intensity and direction of selection on the maturation rates of the two species and in their adult densities, which are related to differences in their life histories. Thus, a life history trait trade-off with a competitive trait may cause a competitive ecological coexistence to collapse. |
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Authors:
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Akihiko Mougi; Kinya Nishimura |
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Publication Detail:
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Type: Journal Article Date: 2006-02-03 |
Journal Detail:
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Title: Journal of theoretical biology Volume: 241 ISSN: 0022-5193 ISO Abbreviation: J. Theor. Biol. Publication Date: 2006 Aug |
Date Detail:
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Created Date: 2006-07-19 Completed Date: 2007-05-21 Revised Date: 2009-11-19 |
Medline Journal Info:
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Nlm Unique ID: 0376342 Medline TA: J Theor Biol Country: Netherlands |
Other Details:
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Languages: eng Pagination: 467-76 Citation Subset: IM |
Affiliation:
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Graduate School of Fisheries Sciences, Hokkaido University, Hakodate 041-8611, Japan. mougi@fish.hokudai.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Competitive Behavior* Ecosystem Evolution* Models, Biological* Population Density Selection, Genetic Sexual Maturation / genetics* |
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