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Quantitative Biology > Populations and Evolution

arXiv:0806.0979 (q-bio)
[Submitted on 5 Jun 2008]

Title:Pruning the Tree of Life: k-core Percolation as Selection Mechanism

Authors:Peter Klimek, Stefan Thurner, Rudolf Hanel
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Abstract: We propose a model for evolution aiming to reproduce statistical features of fossil data, in particular the distributions of extinction events, the distribution of species per genus and the distribution of lifetimes, all of which are known to be of power law type. The model incorporates both species-species interactions and ancestral relationships. The main novelty of this work is to show the feasibility of k-core percolation as a selection mechanism. We give theoretical predictions for the observable distributions, confirm their validity by computer simulation and report good agreement with the fossil data. A key feature of the proposed model is a co-evolving fitness landscape determined by the topology of the underlying species interactions, ecological niches emerge naturally. The predicted distributions are independent of the rate of speciation, i.e. whether one adopts an gradualist or punctuated view of evolution.
Comments: 6 pages, 3 eps figures
Subjects: Populations and Evolution (q-bio.PE)
Cite as: arXiv:0806.0979 [q-bio.PE]
  (or arXiv:0806.0979v1 [q-bio.PE] for this version)
  https://doi.org/10.48550/arXiv.0806.0979

Submission history

From: Peter Klimek [view email]
[v1] Thu, 5 Jun 2008 14:27:34 UTC (23 KB)
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