Figure 2.

Community patterns as a function of resource sharing and microbe dispersal distances. Each square represents a community 5000 time units after a cheater was introduced. Communities that are all white are those in which the cheater drove everyone extinct. Repeated simulations gave consistent results, except that the stripes have different orientations each time, and communities with moderate d_res and d_mic sometimes randomly go extinct. Here, b₁ = b₂ = 0.6, b₀ = 0.7, δ = 0.15, Q = 6.5, and the domain is 200 × 200 sites. (Online version in colour.)