Fig. 5.

Snapshots of a metapopulation from an illustrative Restricted Community simulation recorded every 20 cycles (A–H). The metapopulation was initialized with the three bacterial strains sensitive (blue), resistant (yellow), and producer (red) in addition to a small patch of a mutant resistant strain (black) with an increased growth rate. The mutant initially outcompetes nearby ancestor patches (A–E) but is extinguished after outcompeting neighboring patches of the producer (F–H).