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Phys. Rev. Lett. 84, 5018 - 5021 (2000)

Self-Segregation of Competitive Chaotic Populations

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Renate Wackerbauer1, Hongyan Sun1,2, and Kenneth Showalter1 *
1Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506-6045
2Department of Physics, West Virginia University, Morgantown, West Virginia 26506-6315

Received 26 January 2000

The dynamical behavior of species competing for a common resource is studied with a reaction-diffusion system based on cubic autocatalysis. Randomly seeded populations self-segregate to form a complex network of domains separated by distinct interfaces. For chaotic populations in one-dimensional media, the interfaces exhibit irregular motions on long time scales. In two-dimensional media, the interface motions are governed by curvature-induced drift.


©2000 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.84.5018
DOI: 10.1103/PhysRevLett.84.5018
PACS: 87.23.Ge, 05.45.Ac, 82.40.Bj, 87.23.Kg

* To whom correspondence should be addressed.

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