Fig. 2: The effect of the interaction of parasite origin (range-coreversus invasion-front) and treatment (skin secretions intactversus reduced) on the proportion of lungworm larvae (L3) that established in the lungs of cane toads from the range-core (a) and the invasion-front (b). The lower panels show the effect of the interaction of parasite origin and treatment on the number of parasites in the lungs of toads from the range-core (c; note that the interaction was uninformative) and the invasion-front (d). The 95% confidence intervals are given as bars.