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Eco-evolutionary dynamics of an intraguild predation with the effect of free space

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  • Dash, Suparna
  • Khajanchi, Subhas

Abstract

In the study of ecology, intraguild predation is a very important tool to describe the dynamics of a mathematical model containing species from omnivore groups. A model based on basal resource, IG-prey and IG-predator interactions has been considered. Irrespective of the parameter values, the system is unable to become stable about interior equilibrium point. For this failure of the system, we incorporate the effect of free space by constructing a game-theoretical payoff matrix in the search for a biologically realistic outcome. In the presence of the eco-evolutionary component (free space), the IGP model is able to show stable coexistence behavior. The system can prevent the extinction of basal resource and IG-prey by reducing the reproductive benefit for IG-predator from free space. The contributions of several parameters (ecological and system parameters) for stabilizing the system have been explored, and the occurrence of multistability by drawing basin of attractions in a plane section of the phase space has been demonstrated. Our study reveals that the free space provides an opportunity to preserve biodiversity.

Suggested Citation

  • Dash, Suparna & Khajanchi, Subhas, 2026. "Eco-evolutionary dynamics of an intraguild predation with the effect of free space," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 240(C), pages 713-730.
    • Handle: RePEc:eee:matcom:v:240:y:2026:i:c:p:713-730
    DOI: 10.1016/j.matcom.2025.07.050
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    References listed on IDEAS

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