An injured koala rests in a washing basket at the Kangaroo Island Wildlife Park in the Parndana region on Kangaroo Island, Australia. Photo / Getty Images
An injured koala rests in a washing basket at the Kangaroo Island Wildlife Park in the Parndana region on Kangaroo Island, Australia. Photo / Getty Images
The number of animals which have died in Australia's bushfire season far has been revised up to more than one billion, "hastening extinction" for some species.
University of Sydney scientist Professor Chris Dickman has revised his estimate of the number of animals killed in bushfires in NSW to more than800 million animals, with a national figure more than one billion animals.
Just weeks ago, Professor Dickman's estimate was 480 million animals, but with fires continuing and their range extending, the animals perishing in their path has become part of a "monstrous event" .
Toni Doherty saves a Koala injured in a bushfire near Long Flat in New South Wales. Photo / 9NEWS
The University of Sydney reported that Professor Dickman has told National Public Radio in America that the bushfires and their devastation was unprecedented.
"I think there's nothing quite to compare with the devastation that's going on over such a large area so quickly," he said.
"It's a monstrous event in terms of geography and the number of individual animals affected."
"We know that Australian biodiversity has been going down over the last several decades, and it's probably fairly well known that Australia's got the world's highest rate of extinction for mammals.
"It's events like this that may well hasten the extinction process for a range of other species. So, it's a very sad time.
"We're probably looking at what climate change may look like for other parts of the world in the first stages in Australia at the moment."
The figures of animals dying in the fires includes mammals (excluding bats), birds and reptiles, but does not include frogs, insects or other invertebrates.
Mega-blaze forms as three fires merge
It's been a long night for firefighters in New South Wales, where three bush fires merged to create a massive blaze in the Snowy Mountains.
The 23,3000ha Green Valley fire merged with the nearby East Ournie Creek blaze and the 31,2000ha Dunns Road fire on Friday evening.
Three fires have merged to form a "mega-blaze" on the New South Wales and Victoria borders. Photo / News.com.au
NSW Premier Gladys Berejiklian said the extent of the damage wouldn't be known until later this morning.
The "mega-blaze" straddles the New South Wales and Victoria borders and covers more than 640,000ha.
Firefighters warned a southerly change was moving rapidly across NSW and had caused some fires to spread quickly.
That change was not expected to reach some coastal areas until early this morning.
The NSW Rural Fire Service said the predicted southerly wind change did not eventuate across the Blue Mountains fire zone, which helped to ease fire activity.
A watch and act warning was in place for a large area stretching east from Mallacoota, north past Burrowa-Pine Mountain and west past Dandongadale. The bush fire zone reaches as far as Orbost in the south.
