Evolutionary dynamics and ecosystems feedback in two dimensional daisyworld

Abstract

We introduce replicator-mutator mechanisms from evolutionary dynamics into a two-dimensional daisyworld model, thereby coupling evolutionary changes with daisyworld's bidirectional feedback between biota and environment. Daisy-world continues to self-regulate in the presence of these evolutionary forces. The most interesting behaviours, exhibiting a complex and dynamic dance through space and time in species' abundance, emerges through the introduction of additive spatio-temporal random perturbations in the form of thermal noise. The balance between ecosystem feedback and fluctuations in the ecosystem determines the spatial coexis-tence of domains of dominance between daisy species and their mutants or adaptants. Show more