Losses in the 2019-20 NSW bushfires may exceed 70 per cent of the state's entire koala population

ABC News, 7 March 2020: 

Koala losses from recent NSW bushfires 'One of the most significant biodiversity impacts in our history' 

Authorities may have underestimated the extent of the impact of the bushfires on koalas on the North Coast, a New South Wales ecologist has said. 

Stephen Phillips, managing director and principal research scientist at Biolink ecological consultants, has been revisiting six previously-surveyed koala habitats between Forster and Ballina. 

The company was hired by the World Wildlife Fund (WWF) to undertake the first on-the-ground surveys in the area since the recent bushfires and is more than halfway through. 

"As part of the broader modelling that we're doing with fire, we're assuming a 70 per cent loss or — 70 per cent mortality rate," Dr Phillips said. "And current information suggests that, based on our field survey work, that the real answer is probably north of that somewhere. 

"So the losses are probably far bigger than what we've been modelling in." They are more than halfway through resurveying the sixth site and Dr Phillips said the story now seems "pretty consistent".

South of Port Macquarie this week they found little evidence of survivors. 

"Part of what we're doing here, we're looking beneath one of the most preferred koala food trees, which is called Tallowwood, and in raking around the bottom of this tree I've picked up a koala scat [faecal pellet]," Dr Phillips said. 

They are, however, still working through the 18 sites at Lake Innes, south of Port Macquarie. 

"One of the good things about this site is that the canopy scorch is mild, so that gives us some hope that there may be some survivors," Dr Phillips said. 

"I guess part of what we're doing now is trying to work out how much of this study area has been impacted and how many survivors there may be, but all evidence indicates its probably not going to be many." 

Area of special significance 

The site in Lake Innes was previously the subject of a successful translocation study. 

"So finding out what's happened to the population that we established and finding out it's future, whether it's going to survive, whether it's going to become part of a broader recovery program, is also what this is about," Dr Phillips said..... 

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