Figure 5.

Coevolutionary formation of the infection rate interaction network over time. Greyscale shows pairwise interaction strength (ln|ϕθ_ijN_iV_j|) for bacterial strains (rows) and phage strains (columns). Network size (number of bacterial strains × number of phage strains) is shown as the x-axis label for each plot; time point (×10⁷ min) is shown as the y-axis label. Plots show time points corresponding to the dotted gridlines shown in figure 2, with time increasing down each column, from top left to bottom right.