Figure 4.

Dynamics of coevolution inferred from time-shift experiments for focal antagonists from transfer 10. (a) The time-shift experiment for focal pathogen from transfer 10 (P10) exposed to past, contemporaneous and future pathogens (from transfers 1, 10 and 23; H1, H10 and H23, respectively). The left, middle and right panels correspond to small, large and bottlenecked populations. The host and pathogen were always matched with the coevolved antagonist from the same replicate population. Each line represents an independent replicate; the black lines and bars show the average across replicates with standard errors (15–16 lines, 30 hermaphrodites per line). (b) Similar time-shift experiments using focal host from transfer 10 (H10). The presented data are a subset of that used in figure 3b. (Online version in colour.)