Application of homotopy-perturbation method to nonlinear population dynamics models

In this Letter, the homotopy-perturbation method (HPM) is employed to derive approximate series solutions of nonlinear population dynamics models. The nonlinear models considered are the multispecies Lotka-Volterra equations. The accuracy of this method is examined by comparison with the available exact and the fourth-order Runge-Kutta method (RK4). (c) 2007 Elsevier B.V. All rights reserved.