Fig. 6.

Dominant, complete, no-cost resistance. Evolution of the R allele frequency (a), the L allele frequency (b), and the change in the relative population size over time (c). The model is spatial, with release ratio d=20, and a dominant complete resistance (${\gamma }_{\mathit{SR}}={\gamma }_{\mathit{RR}}=0$) with no associated costs (${\psi }_{\mathit{SR}}={\psi }_{\mathit{RR}}=1$). Dashed lines indicate the target deme, solid lines indicate the non-target deme, and the line colours indicate the simulated dispersal rate (see legend). 2000 of the 3000 simulated generations are shown. The highly effective resistance spreads allows the lethal construct to reach fixation in both demes. Even in this worst-case scenario, some suppression of the target population is observed.