Numerically computed invasion threshold parameter R
. (A) R∗ as a function of R0 for two different values of the parameter γ ruling mobility network heterogeneity (γ = 2.3 and γ = 3) and for boundary values of the traveling partition, r = 0 and r = 1. Here we consider a recovery rate μ = 0.5, a traffic rescaling factor w0 = 0.05, and parameters α, η and ε set to 0.2, 0.5, 0.1, respectively. (B) Heat map of R∗ as a function of ε and η for α = 0.4, R0 = 1.2 and γ = 2.3. We consider r = 0. The colour code is proportional to the value of R∗, the region of no-invasion R∗ < 1 being coloured in grey.