Fig. 3

Bacterial susceptibility across low resource treatments approaching phage extinction time points. a, b mean (± SE) proportion of realised interactions (using binary threshold of susceptibility) and (c, d) mean (± SE) link strength of realised interactions within replicate populations of mixed and static low resource treatments. Bacteria sampled at pre-extinction time points (Contemporary) or extinction time points (Future) assayed against phage sampled from the same replicate population at the pre-extinction time point. Designated ‘Extinct’ (a, c) or ‘Survived’ (b, d) based on phage presence at transfer 10. ‘N’ describes the number of replicate populations represented under each heading. The dashed line in c, d shows the link strength of ancestral phage against ancestral bacterial