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.