Fig. 3
From: Using Microbial Microcosms to Study Host–parasite Coevolution
Results of a time-shift experiment showing rates of a phage infectivity and b bacterial resistance evolution in coevolving populations of P. fluorescens and phage. In panel alines represent bacterial resistance to past, contemporary, and future phage populations. In panel blines represent resistance of past, contemporary, and future bacterial populations to a given phage population. The slope of each line provides a measure of the rate of evolutionary change over a four time step period. Adapted from Brockhurst et al. (2003)