Figure 8

(Left) Return map of \(\Delta t_{i+1}\) vs \(\Delta t_i\), and (right) Probability distribution of \(\Delta t_i\) fitted with exponentially decaying function, where \(\Delta t_i\) is the ith interval between successive extreme events, where an extreme event is defined at the instant when biomass crosses the \(\mu +4\sigma\) line (cf. Fig. 6). Here the system size \(N=100\) and coupling strength \(C=1.0\) in Eq. (2).