Fig. 2: Two model simulations illustrating the general principle of persistence selection for a recycling loop.
From: The evolution of biogeochemical recycling by persistence-based selection
Each column shows the result of a single 2000-generation model simulation, 500 generations into which the abiotic influx of both environmental substances is set to zero for 150 generations. Top row shows the frequencies of producer (blue), non-producer (red) and plastic (green) genotypes within species \({S}_{1}\) (solid lines) and \({S}_{2}\) (dashed lines). Bottom row shows abiotic input (purple) biotic assimilation (brown) and production (light blue) fluxes impacting the level of environmental substances \({R}_{1}\) (solid lines) and \({R}_{2}\) (dashed lines). Left column (A, C) shows a simulation in which the producer cost is relatively low \({\kappa }_{{prod}}=0.001\), right column (B, D) a simulation in which it is relatively increased \({\kappa }_{{prod}}=0.01\).
