Predator-Pray Swarm Interaction in 2D: Numerical Simulation

EasyChair Preprint 522

Abstract

In the present work is described an ordinary differential system of equations for simulating the swarming behavior of preys in the presence of a predator. Preys and predator are represented by a set of ODEs taking in account the Newtonian attraction-repulsion forces. The predator interact with the preys through a Newtonian force, which is a nonconservative force (includes friction) that acts in the same direction for both agents. A perturbing force is introduced for the predator dynamics in order to simulate its behavior among preys. The resulting system of ordinary differential equations is solved numerically by Runge-Kutta of fourth order and the dynamics are discussed in the present work as the swarm's ability to realistically avoid the predator. The main goal is to reproduce swarm behavior that has been observed in nature with the minimal and simple possible model of ODE system.

Keyphrases: Prey-predator, Runge-Kutta 4 order, dynamical system, numerical simulation, swarm interaction

@booklet{EasyChair:522,
  author    = {Diomar Cesar Lobao},
  title     = {Predator-Pray Swarm Interaction in 2D: Numerical Simulation},
  howpublished = {EasyChair Preprint 522},
  year      = {EasyChair, 2018}}