Before revision:  (b) Small brood' s infestation rate could stabilize all populations at the unique interior equilibrium under constant seasonality while driving the mite to die out when changes in seasonality is taken into account;
After revision:  (b) Small brood' s infestation rate could stabilize all populations at the unique interior equilibrium under constant seasonality while may drive the mite population to die out when changes in seasonality is taken into account;