Figure 3.

(a) represents the relative estimated density of feral pigs in Australia, where the normalized density ranges from 0 (white) and low density (yellow) to 1 (red) (DAFF, 2022). (b) represents an exponential relationship for the Euclidean distance from a domestic piggery in Australia, where high risk (red) is the location of a piggery, which exponentially declines as distance increases with values levelling out at 10 km from the piggery denoting low risk (yellow) and beyond that zero risk (white).