Dynamics of Adaptation and Evolutionary Branching

Stefan A. H. Geritz, J. A. J. Metz, Éva Kisdi, and Géza Meszéna
Phys. Rev. Lett. 78, 2024 – Published 10 March 1997
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Abstract

We present a formal framework for modeling evolutionary dynamics with special emphasis on the generation of diversity through branching of the evolutionary tree. Fitness is defined as the long term growth rate which is influenced by the biotic environment leading to an ever-changing adaptive landscape. Evolution can be described as a dynamics in a space with variable number of dimensions corresponding to the number of different types present. The dynamics within a subspace is governed by the local fitness gradient. Entering a higher dimensional subspace is possible only at a particular type of attractors where the population undergoes evolutionary branching.

  • Received 26 April 1996

DOI:https://doi.org/10.1103/PhysRevLett.78.2024

©1997 American Physical Society

Authors & Affiliations

Stefan A. H. Geritz1,2, J. A. J. Metz2,3, Éva Kisdi4, and Géza Meszéna5

  • 1Collegium Budapest, Institute for Advanced Studies, Szentháromság 2, 1014 Budapest, Hungary
  • 2Institute of Evolutionary and Ecological Sciences, University of Leiden, Kaiserstraat 63, 2311 GP Leiden, The Netherlands
  • 3Adaptive Dynamics Network, IIASA, A-2361 Laxenburg, Austria
  • 4Department of Genetics, Eötvös University, Múzeum krt. 6-8, 1088 Budapest, Hungary
  • 5Department of Atomic Physics, Eötvös University, Puskin u. 5-7, 1088 Budapest, Hungary

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Vol. 78, Iss. 10 — 10 March 1997

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