The Hopf Bifurcation for a Predator-Prey System with 𝜃-Logistic Growth and Prey Refuge

Figure 5

The infected steady state 𝐸^∗ of system (2) without term 𝑒^−𝑚𝜏 is unstable when 𝜏=0.75 (a) and 𝜏=10 (b). The rest parameter values are given in (i), and the initial values are 𝑥₀=8 and 𝑦₀=5.

(a)

(b)