Phys. Rev. E 70, 021913 (2004) - Suppression of ecological competition by an apex predator

Suppression of ecological competition by an apex predator

Taksu Cheon and Shigemi Ohta

Phys. Rev. E 70, 021913 – Published 30 August 2004

Abstract

In the framework of Lotka-Volterra dynamics with evolutionary parameter variation, it is shown that a system of two competing species which is evolutionarily unstable, if left to themselves, is stabilized by a common predator preying on both of them. Game-theoretic implications of the results are also discussed.

Received 11 August 2003

DOI:https://doi.org/10.1103/PhysRevE.70.021913

©2004 American Physical Society

Authors & Affiliations

Laboratory of Physics, Kochi University of Technology, Tosa Yamada, Kochi 782-8502, Japan

Shigemi Ohta^†

Institute of Particle and Nuclear Studies, KEK, Tsukuba, Ibaraki 305-0801, Japan

^*Electronic address: taksu.cheon@kochi-tech.ac.jp
^†Electronic address: shigemi.ohta@kek.jp

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Issue

Vol. 70, Iss. 2 — August 2004

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