Permanence, Extinction, and Almost Periodic Solution of a Nicholson's Blowflies Model with Feedback Control and Time Delay

Figure 2

The dynamic behavior of system (77) with initial condition (𝑥(0),𝜇(0))^𝑇=(0.03,0.05)^𝑇,(0.02,0.04)^𝑇,(0.005,0.01)^𝑇,(0.002,0.003)^𝑇; here 𝑡∈[0,100].