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Mixed-mode oscillations and chaos in a prey-predator system with dormancy of predators
Masataka Kuwamura1, Hayato Chiba
1Graduate School of Human Development and Environment, Kobe University, Kobe 657-8501, Japan. kuwamura@main.h.kobe-u.ac.jp
Abstract:
It is shown that the dormancy of predators induces mixed-mode oscillations and chaos in the population dynamics of a prey-predator system under certain conditions. The mixed-mode oscillations and chaos are shown to bifurcate from a coexisting equilibrium by means of the theory of fast-slow systems. These results may help to find experimental conditions under which one can demonstrate chaotic population dynamics in a simple phytoplankton-zooplankton (-resting eggs) community in a microcosm with a short duration.
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