Eco-evolutionary feedbacks, adaptive dynamics, and evolutionary
rescue theory
Regis Ferriere and Stéphane Legendre
Supplementary figure 1. Phage evolution under increasing temperature: a
coevolutionary trap? This E3-diagram schematically represents recent experimental data
[84] on phage 2 interacting with its bacterial host Pseudomonas fluorescence under
increasing temperature. Temperature is the environmental condition on the horizontal axis;
phage infectivity is the adaptive trait on the vertical axis. As temperature rises, the cost of
infectivity increases (as the data suggest [84]) hence the non-viable region (in black) expands
into lower values of infectivity. With coevolution happening in the host, the phage population
evolves higher infectivity in response to increasing temperature (solid arrow) and eventually
hits the non-viable region (white star). With an evolutionarily constant host, the phage
population follows a different evolutionary attractor (dotted arrow) which remains viable over
the range of temperature tested.