Abstract
We consider a mathematical model for the spatio-temporal evolution of two biological species in a competitive situation. Besides diffusing, both species move toward higher concentrations of a chemical substance which is produced by themselves. The resulting system consists of two parabolic equations with Lotka–Volterra-type kinetic terms and chemotactic cross-diffusion, along with an elliptic equation describing the behavior of the chemical. We study the question in how far the phenomenon of competitive exclusion occurs in such a context. We identify parameter regimes for which indeed one of the species dies out asymptotically, whereas the other reaches its carrying capacity in the large time limit.
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The second author is partially supported by Ministerio de Economía y Competitividad under grant MTM2009-13655 (Spain) and CCG07-UPM/000-3199 at UPM.
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Stinner, C., Tello, J.I. & Winkler, M. Competitive exclusion in a two-species chemotaxis model. J. Math. Biol. 68, 1607–1626 (2014). https://doi.org/10.1007/s00285-013-0681-7
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DOI: https://doi.org/10.1007/s00285-013-0681-7