Populations of reintroduced western-quolls and brush-tailed possums at Ikara-Flinders Ranges National Park have defied expectations and continued to expand.
The fledgling populations have weathered two of the driest years recorded for the region and come through with flying colours.
Department for Environment and Water spokesperson Robert Brandle said initial fears that populations would have declined have turned out to be unfounded.
He says the population numbers have been maintained since 2017, and the animals are all in good health and there is an even mix of males and females.
The Bounceback Program has effectively reduced fox numbers in the landscape, paving the way for the release of western-quolls and brush-tailed possums.