Modeling Symbiosis by Interactions Through Species Carrying Capacities
Physica D: Nonlinear Phenomena, Vol. 241, pp. 1270-1289, 2012
52 Pages Posted: 8 Jun 2012
Date Written: June 7, 2012
Abstract
We introduce a mathematical model of symbiosis between different species by taking into account the influence of each species on the carrying capacities of the others. The modeled entities can pertain to biological and ecological societies or to social, economic and financial societies. Our model includes three basic types: symbiosis with direct mutual interactions, symbiosis with asymmetric interactions, and symbiosis without direct interactions. In all cases, we provide a complete classification of all admissible dynamical regimes. The proposed model of symbiosis turned out to be very rich, as it exhibits four qualitatively different regimes: convergence to stationary states, unbounded exponential growth, finite-time singularity, and finite-time death or extinction of species.
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