| 来源类型 | Article |
| 规范类型 | 其他 |
| DOI | 10.1007/s00285-003-0236-4 |
| Remarks on branching-extinction evolutionary cycles. | |
| Dercole F | |
| 发表日期 | 2003 |
| 出处 | Journal of Mathematical Biology 47 (6): 569-580 |
| 出版年 | 2003 |
| 语种 | 英语 |
| 摘要 | We show in this paper that the evolution of cannibalistic consumer populations can be a never ending story involving alternating levels of polymorphism. More precisely, we show that a monomorphic population can evolve toward high levels of cannibalism until it reaches a so-called branching point, where the population splits into two sub-populations characterized by different, but initially very close, cannibalistic traits. Then, the two traits coevolve until the more cannibalistic sub-population undergoes evolutionary extinction. Finally, the remaining population evolves back to the branching point, thus closing an evolutionary cycle. The model on which the study is based is purely deterministic and derived through the adaptive dynamics approach. Evolutionary dynamics are investigated through numerical bifurcation analysis, applied both to the ecological (resident-mutant) model and to the evolutionary model. The general conclusion emerging from this study is that branching-extinction evolutionary cycles can be present in wide ranges of environmental and demographic parameters, so that their detection is of crucial importance when studying evolutionary dynamics. |
| 主题 | Adaptive Dynamics Network (ADN) |
| 关键词 | Adaptive dynamics Cannibalism Dwarfs Evolution Evolutionary branching Evolutionary cycles Evolutionary extinction Giants Monomorphism Polymorphism |
| URL | http://pure.iiasa.ac.at/id/eprint/6858/ |
| 来源智库 | International Institute for Applied Systems Analysis (Austria) |
| 引用统计 | |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/128248 |
| 推荐引用方式 GB/T 7714 | Dercole F. Remarks on branching-extinction evolutionary cycles.. 2003. |
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