|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences >
Peer-reviewed Journal Articles, etc >
Evolution of the maturation rate collapses competitive coexistence
| Title: | Evolution of the maturation rate collapses competitive coexistence |
| Authors: | Mougi, Akihiko Browse this author | | Nishimura, Kinya Browse this author |
| Keywords: | Competition | | Coexistence | | Life history traits | | Maturation rate | | Adaptive dynamics |
| Issue Date: | 7-Aug-2006 |
| Publisher: | Elsevier Ltd |
| Journal Title: | Journal of Theoretical Biology |
| Volume: | 241 |
| Issue: | 3 |
| Start Page: | 467 |
| End Page: | 476 |
| Publisher DOI: | 10.1016/j.jtbi.2005.12.017 |
| PMID: | 16458325 |
| Abstract: | 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. |
| Relation: | http://www.sciencedirect.com/science/journal/00225193 |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/14664 |
| Appears in Collections: | 水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 西村 欣也
|
