Figure 2
The coexistence of defectors and players adopting the win-stay-lose-shift strategy in case of imitation on a square lattice.
Depicted is the time evolution of the frequency of defectors fD as obtained for b = 1.7, 1.734, 1.736, 1.738, 1.739 and 1.741 from bottom to top. The time courses provide insight into the competition for space within the narrow two-strategy WSLS + D phase that can be observed in Fig. 1. At b = 1.741 defectors come to dominate the whole population, but their dominance is immediately overthrown in favor of the three-strategy WSLS + TFT + D phase that is sustained by cyclic dominance. The used linear size of the square lattice is L = 1000. Note that the time scale is logarithmic.
