Classification of 25 species of Tasmanian eucalypts by genetic lineage (GL) [20,21], section, series, and rarity.

Measures of range size, habitat specificity, and population aggregation from Williams & Potts [19] were used to group species into seven different ordinal rarity levels (Fig 1). Species range sizes were created by connecting occupied 10 km x 10 km grid cells from the outer marginal extremes of a core distribution to outliers and interpolating the number of cells within the resulting envelope for each species. Similarly, the aggregation of each species was calculated as the average percent occurrence within each grid cell of the species’ range. Additionally, habitat specificity was calculated for each species as the proportion of bioregions inhabited in Tasmania.