Figure 4

Deterministic and stochastic trajectories of prey population and predator population with \(b=0.02\), \(d_{1}=0.04\), \(\alpha =0.01\), \(A_{1}=3\), \(\sigma _{1}^{2}=0.3\), \(\sigma _{2}^{2}=0.2\), \(\gamma _{1}(u)= \gamma _{2}(u)=0.1\) and other parameters are taken as in Table 1. (a) Trajectories of prey population. (b) Trajectories of predator population. (Color figure online)