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EVOLUTION OF POPULATION WITH SEXUAL AND ASEXUAL REPRODUCTION IN CHANGING ENVIRONMENT

Department of Applied Mathematics, Dalian University of Technology, Center of Innovative Education and Practice of Dalian University of Technology, Dalian 116024, China

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CHANGLIANG YU

Department of Automation, Dalian University of Technology, Dalian 116024, China

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HONGBO RUAN

Department of Civil Engineering, Dalian University of Technology, Dalian 116024, China

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, and

LEI YAO

Department of Automation, Dalian University of Technology, Dalian 116024, China

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https://doi.org/10.1142/S0129183104005693Cited by:2 (Source: Crossref)

Abstract

Using a lattice model based on Monte Carlo simulations, we study the role of the reproduction pattern on the fate of an evolving population. Each individual is under the selection pressure from the environment and random mutations. The habitat ("climate") is changing periodically. Evolutions of populations following two reproduction patterns are compared, asexual and sexual. We show, via Monte Carlo simulations, that sexual reproduction by keeping more diversified populations gives them better chances to adapt themselves to the changing environment. However, in order to obtain a greater chance to mate, the birth rate should be high. In the case of low birth rate and high mutation probability there is a preference for the asexual reproduction.

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