“…For example, Sarwardi et al [27] focused on the local and the global stability and the bifurcations of a competitive preypredator system with a prey refuge, Ko and Ahn [16] discussed the global attractor, persistence and the stability of all non-negative equilibria of a diffusive one-prey and two-competing-predator system with a ratio-dependent functional response, Pan et al [25] considered Gause , s principle in interspecific competition of the cyclic predatorprey system, Qun Liu et al [23] addressed the global stability of a stochastic predatorprey system with infinite delays. For more related works on this topic, one can see [2,3,6,[9][10][11][12]14,15,18,20,24,26,28,29,31,34,35,38]. In 2001, Zhang et al [36] investigated the permanence of the following non-autonomous competing model dx 1 (t)…”