Figure 3
Bifurcation plots illustrating the evolutionary dynamics of pool rewarding in spatially structured populations. The reward benefit serves as a control parameter. Arrows show the direction of evolution for the probability of playing prosocial rewarding. Solid (dashed) lines correspond to convergence stable (unstable) equilibria. In the left column panels (a,d,g), there is no spatial structure (i.e., κ = 0). In the middle column panels (b,e,h), κ = 0.2. In the right column panels (c,f,i), κ = 0.8. In the top row panels (a,b,c), r 1 = 1.25. In the middle row panels (d,e,f), r 1 = 2.5. In the bottom row panels (g,h,i), r 1 = 4.5. In all panels, n = 5.
