Periodically Varying Externally Imposed Environmental Effects on Population Dynamics

Details Periodically Varying Externally Imposed Environmental Effects on Population Dynamics Periodically Varying Externally Imposed Environmental Effects on Population Dynamics

2004-04-02

arxiv.org/abs/nlin/0404008v1

Nonlinear Sciences

Adaptation and Self-Organizing Systems

7 pages, 8 figures, included

Scientific paper

10.1103/PhysRevE.70.031912

Effects of externally imposed periodic changes in the environment on population dynamics are studied with the help of a simple model. The environmental changes are represented by the temporal and spatial dependence of the competition terms in a standard equation of evolution. Possible applications of the analysis are on the one hand to bacteria in Petri dishes and on the other to rodents in the context of the spread of the Hantavirus epidemic. The analysis shows that spatio-temporal structures emerge, with interesting features which depend on the interplay of separately controllable aspects of the externally imposed environmental changes.

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