Competition and cooperation in one-dimensional stepping-stone models

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Competition and cooperation in one-dimensional stepping-stone models

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Title: Competition and cooperation in one-dimensional stepping-stone models
Author: Korolev, K.; Nelson, David R.

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Citation: Korolev, K., and David Nelson. 2011. Competition and cooperation in one-dimensional stepping stone models. Physical Review Letters 107(8): 088103.
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Abstract: Mutualism is a major force driving evolution and sustaining ecosystems. Although the importance of spatial degrees of freedom and number fluctuations is well known, their effects on mutualism are not fully understood. With range expansions of microbes in mind, we show that, even when mutualism confers a selective advantage, it persists only in populations with high density and frequent migrations. When these parameters are reduced, mutualism is generically lost via a directed percolation (DP) process, with a phase diagram strongly influenced by an exceptional symmetric DP (DP2) transition.
Published Version: doi:10.1103/PhysRevLett.107.088103
Other Sources: http://arxiv.org/abs/1104.2464
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:8160724

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  • FAS Scholarly Articles [6463]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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