Population-Level Consequences of Antipredator Behavior: A Metaphysiological Model Based on the Functional Ecology of the Leaf-Eared Mouse

摘要: We present a predator–prey metaphysiological model, based on the available behavioral and physiological information of sigmodontine rodent Phyllotis darwini. The model is focused population-level consequences antipredator behavior, performed by population, which assumed to be an inducible response predation avoidance. decrease in vulnerability explicitly considered have two associated costs: decreasing foraging success increasing metabolic loss. analysis was carried out reduced form system means numerical analytical tools. evaluated stability properties equilibrium points phase plane, bifurcation analyses density under varying conditions three relevant parameters. parameters chosen represent predator avoidance effectiveness (A), cost behavior (C1′), activity-metabolism (C4′). Our suggests that trade-offs involved plays fundamental role system. Under high cost, decreases as increases. complementary scenario (not considering highest costs), equilibria are either stable when both costs low, or unstable higher, independent effectiveness. No evidence stabilizing effects found.