Figure 4From: Dynamics of a class of host–parasitoid models with external stocking upon parasitoidsTrajectories (orange, black, and red) for \(b=0.28\), \(d=1.79\), \(m=1.05\), where \(a_{0} \approx 15.9885\), \(d_{2}(a_{0})\approx 0.03181\), \(\alpha _{2}(a_{0})\approx -0.331443\), \((\bar{x},\bar{y})=(3.24017, 2.6405)\), and (a) \(a=15.0\), (b) \(a = 15.9885 \), (c) \(a = 16.2\), (d) \(a = 16.92\) for model (29) (supercritical Neimark–Sacker bifurcation)Back to article page