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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

A phenomenological analysis of eco-evolutionary coupling under dilution

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Author(s):
Sanches, Vitor H. [1, 2] ; Kuraoka, Dhyan V. H. [1] ; Almeida, Pedro R. [1] ; Goldman, Carla [1]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Inst Fis, Sao Paulo, SP - Brazil
[2] Univ Sao Paulo, Escola Artes Ciencias & Humanidades, Sao Paulo, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Journal of Theoretical Biology; v. 438, p. 156-164, FEB 7 2018.
Web of Science Citations: 0
Abstract

Evolutionary dynamics experienced by mixed microbial populations of cooperators and cheaters has been examined in experiments in the literature using a protocol of periodic dilution to investigate the properties of resilience and adaptability to environmental changes. Data depicted on an appropriate phase diagram indicate, among other features, a stable equilibrium point at which cooperators and cheaters coexist (Sanchez and Gore, 2013). We present here a phenomenological analysis of these data focusing on an eco-evolutionary-game perspective. To that end, we work on an extension of the model proposed in Tao and Cressman (2007). It's original version takes into account changes of the total population density while the individuals experience a pairwise Prisoners Dilemma game. The extension devised here contains a dilution parameter to conform with the experimental procedure, in addition to a term accounting for Allee effects. In contrast to other descriptions proposed in similar contexts, however, the model here does not account for assortative encounters, group or kin selection. Nonetheless, it describes surprisingly well both qualitatively and quantitatively the features of the observed phase diagram. We discuss these results in terms of the behavior of an effective payoff matrix defined accordingly. (C) 2017 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 15/17395-3 - Considerations on the coupling between evaluative dynamics and population growth: phenomenological analysis of the cooperative behavior of bacteria resistant to antibiotics
Grantee:Vitor Hirata Sanches
Support Opportunities: Scholarships in Brazil - Scientific Initiation