More than one billion animals have been killed in the bushfire crisis which has destroyed extensive areas of critical habitat across the country.
Ecologists calculated at least six million hectares of habitat home to 250 threatened species were ravaged during the horror bushfire season.
Estimates of more than one billion animals are believed to have been killed, including huge numbers of mammals, birds, reptiles, insects and other species.
Some of the ecosystems in Australia are expected to never recover from the damage the bushfires caused.
Koala populations have been severely affected by the fires, with an estimated 8,000 being killed in northern NSW in addition to the 30,000 destroyed on Kangaroo Island
Data published on Monday by the Department of the Environment and Energy showed 49 species had seen more than 80 per cent of their known or likely habitat damaged in the fires.
For a further 65 species, at least half of their habitat was affected.
The threatened species include hundreds of plants, 16 mammals, 14 frogs, nine birds, seven reptiles, four insects, four fish and one spider species.
Professor in Terrestrial Ecology from Sydney University's School of Life and Environmental Sciences, Chris Dickman said it is almost impossible to identify just how many animals were impacted as 'monitoring in Australia is quite poor'.
Koala populations have been severely affected by the fires, with an estimated 8,000 being killed in northern NSW in addition to the 30,000 destroyed on Kangaroo Island.
The native Australian marsupial was already an endangered species due to land clearing, deforestation and climate change, with their habitats decreasing again due to the fires.
Koalas lost a total of 24 per cent of their NSW habitat, 7 per cent of their Queensland habitat and 50 per cent of their Koala habitat.
The glossy black-cockatoo, a sub-species found on Kangaroo Island, have had critical amounts of their habitat destroyed.
The glossy black-cockatoo, a sub-species found