Estimated spatial distribution for Australia's terrestrial threatened species

This data set contains spatial layers of the estimated historical distribution for 1518 Australian terrestrial species listed as Critically Endangered, Endangered or Vulnerable as of July 2022. Each species’ historical distribution was derived from broad habitat preferences. Habitat preferences were identified by intersecting occurrence records with fine resolution (100 m) spatial layers of pre-clearing (pre-1750) vegetation types, bioclimatic regions and elevation. The historical distribution was then calculated by selecting areas of preferred habitat, falling within observed altitudinal limits, from the pre-clearing vegetation extent. Spatial layers representing the currently occupied portion of the estimated historical distribution are also provided.