Numerically calculated invasion probabilities for an inversion capturing $A1B1$ against the strength of selection (s) in favour of this haplotype, for the symmetric (dashed lines) and continent-island (solid lines) scenarios with $r=0.01$ (black), $r=0.05$ (blue), or $r=0.15$ (red), which have lower to higher invasion probabilities. In panel A, $m=0.001$⁠; in panel B $m=0.01$⁠. Data with $s<m$ are excluded as the adaptive alleles may not be at a stable equilibrium.