Estimated spatial distributions for Australia's threatened species

This data set contains spatial layers of the estimated extant and historical distributions for species listed as Critically Endangered, Endangered, or Vulnerable as of 28 May 2025 and that occurred within the contiguous Australian exclusive economic zone. This includes 1,785 species with terrestrial distributions, 122 species with aquatic distributions, and 95 species with marine distributions, with 1,962 species in total (noting that some species can occur in multiple realms). For each species, their extant and historical distributions were estimated using a simple logical algorithm based on Species of National Environmental Significance Distribution grids (DCCEEW 2025a), occurrence records (ALA 2025), and spatial environmental layers, described in full in Giljohann et al. (2025) and in the Lineage text associated with this data publication.