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  Stochastic evolutionary dynamics on two levels

Traulsen, A., Sengupta, A. M., & Nowak, M. A. (2005). Stochastic evolutionary dynamics on two levels. Journal of Theoretical Biology, 235(3), 393-401. doi:10.1016/j.jtbi.2005.01.019.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-1011-B Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-1012-9
Genre: Journal Article

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Traulsen, A.1, Author              
Sengupta, A. M.2, Author
Nowak, M. A.2, Author
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1External, ou_persistent22              
2external, ou_persistent22              

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 Abstract: We consider a population that is subdivided into groups. Individuals reproduce proportional to their fitness. When a group reaches a certain size it has a probability to split into two groups while another group is eliminated. In this stochastic process, the number of groups is constant, while the total population size fluctuates between well-defined bounds. We calculate the fixation probability of newly introduced mutants tinder constant selection. We show that the described population structure acts as a suppressor of selection compared to an unstructured population of the same size. The maximum suppression of selection is obtained, when the number of groups equals the number of individuals per group. We also study opposing selection on two or more levels by analysing the evolutionary dynamics of hierarchically embedded Moran processes. © 2005 Elsevier Ltd. All rights reserved.

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 Dates: 20052005
 Publication Status: Published in print
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Title: Journal of Theoretical Biology
  Other : J. Theor. Biol.
Source Genre: Journal
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Publ. Info: London : Academic Press
Pages: - Volume / Issue: 235 (3) Sequence Number: - Start / End Page: 393 - 401 Identifier: ISSN: 0022-5193
CoNE: /journals/resource/954922646048