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原文連結
論文資訊
- 類型：已發表論文
- 日期：2009
摘要
We propose a model for 演化 aiming to reproduce 統計 features of fossil data, in particular the distributions of extinction events, the distribution of 物種 per genus and the distribution of lifetimes, all of which are known to be of power-law type. The model incorporates both 物種-物種 interactions and ancestral relationships. The main novelty of this work is to show the feasibility of k-core 滲流 as a selection mechanism. We give theoretical predictions for the observable distributions, confirm their validity by computer simulation and compare with fossil data. A key feature of the proposed model is a co-evolving 適應度景觀 determined by the topology of the underlying 物種 interactions, ecological niches emerge naturally. The predicted distributions are independent of the rate of speciation, i.e. whether o
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