News from the Field, Press Release

AWC data added to 2022 Threatened Species Index

15 Dec. 2022

Australian Wildlife Conservancy (AWC) has made significant new contributions to the Threatened Species Index (TSX), a national initiative tracking the trends of threatened wildlife populations over time. The 2022 update to the TSX released in December builds on the existing indices for birds, mammals, and plants with new sources and updated data.

What is the Threatened Species Index?
The Threatened Species Index is a collaborative initiative to provide reliable and robust data about trends in populations of threatened species. The index collates data for different groups from scientists and research organisations who collect long-term datasets. The objective is to ‘do for Australia’s threatened species what the ASX does for Australia’s stock market’, with regular reporting on trends that can be accessed and used by policymakers, non-government organisations, other conservation stakeholders and the wider community.

Critically, the TSX provides a tool for interrogating the effectiveness of different conservation strategies.

Which species did AWC contribute data for?

For the 2022 Threatened Species Index, AWC contributed datasets for thirteen populations of eight different threatened mammal species from AWC sanctuaries around Australia:

  • Burrowing Bettongs at Yookamurra and Faure Island
  • Brush-tailed Bettongs at Karakamia and Mt Gibson
  • Northern Quolls at Mornington
  • Western Barred Bandicoots at Mt Gibson
  • Black-footed Rock-wallabies at Newhaven and Paruna
  • Bilbies at Yookamurra and Scotia
  • Numbats at Yookamurra and Scotia
  • Bridled Nailtail Wallabies at Scotia
Northern Quoll in the Kimberley Brad Leue/AWC
The Northern Quoll is one of the species for which AWC contributed long-term monitoring data for the 2022 Threatened Species Index. At Mornington Wildlife Sanctuary in the Kimberley, the population has suffered from the arrival of the toxic Cane Toad. Brad Leue/AWC

Tracking populations under threat…

The long-term datasets collected by AWC’s team of ecologists provide important insight into how new threats are affecting native species. At Mornington Wildlife Sanctuary in the Kimberley, the data shows a steady decline in a population of Northern Quolls which has been monitored since 2011, which coincides with the arrival of Cane Toads in the region over the past six years.

…and populations in recovery

The data also reveals examples where conservation management has brought about a positive population increase. At Mt Gibson Wildlife Sanctuary in Western Australia, AWC is carrying out one of the most ambitious rewilding projects in the world and has reintroduced nine of a planned ten locally extinct mammal species into a 7,800-hectare, feral predator-free safe haven. Both the Western Barred Bandicoot and the Brush-tailed Bettong populations show rapid population growth in the years following their reintroduction, which has stabilised in subsequent years.

The TSX was developed by the former Threatened Species Recovery Hub, of which AWC was a member, and is now run by the Terrestrial Ecosystem Research Network (TERN) based at the University of Queensland.

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Wayne Lawler/AWC
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