Criticality in a dynamics ruled evolutionary model

Abstract

We propose a model of dynamics-ruled evolution inspired by Bak–Sneppen model. We argue that the only way for the ecological system to find the least or most fit species is to infer it from dynamics. Thus, instead of punishing the species which is ‘least fit’, we punish one which ‘appears to be least fit’. We find that the model still evolves to a critical state. The detailed dynamics does not seem to affect the presence of a critical state.