Figure 7
From: Determinants of population responses to environmental fluctuations
Control of coexistence by fluctuations. The typical time courses of the symmetric two-species competition dynamics described by Eq. (31) are shown for different forms of the coupling between species β as a function of the fluctuating parameter \(c=\bar{c}+\varepsilon (t)\), which from left to right panels are given by β(c) = β0, β(c) = β02c/(1 + c), and β(c) = β0c2 with β0 = 1.05 for the top panels and β0 = 0.95 for bottom panels. The external fluctuations ε(t) follow a dichotomous random process with zero mean, standard deviation σ = 0.5, and correlation time τ = 0.025. The value of the remaining parameter is r0 = 20.
