A phase transition induces chaos in a predator-prey ecosystem with a dynamic fitness landscape
Fig 5
Lyapunov exponents associated with the chaotic dynamics.
(A) The eigenvalues of the Jacobian evaluated during a portion of the dynamics in which the system enters a series of chaotic cycles. The global Lyapunov exponent is underlaid as a dashed black line. (B) The distribution of the lengths of periods in the dynamics during which the largest local Lyapunov exponent is greater than the threshold value 0.2, chosen to correspond to periods of strongly disruptive selection in which the exponent takes values an order of magnitude greater than its median across the time series. Simulation time 2 × 105, other parameters are as given in Fig 2B.