Figure 3. Forward dispersal simulations show the effect of the number of dispersing koalas on the extent of genetic diversity from 1-10 generations after the subdivision for the koala populations located on either side of the linear transport infrastructure. Genetic diversity was measured using expected heterozygosity (He) and the Shannon’s information (Ln(\({}^{1}D\))). The forward-simulations imported the genetic data from the two post-construction datasets (Dataset3above = 27 koalas and Dataset3below = 75 koalas) as a starting point. The starting point of these genetic diversity measures at generation 0 were He_above = 0.267, He_below = 0.270, Ln( \({}^{1}D\)_above) = 0.435; Ln(\({}^{1}D\)_below) = 0.440. We simulated a total of 12 dispersal treatments.