Widely reported over the past week has been the fire, thought to be deliberately lit, in and around the Holsworthy army base, south west of Sydney. Some 3,450 hectares has been burnt and koalas escaping the fire have found found wandering in the adjacent suburbs and one was apparently rescued in the base.
Interestingly, back in 2012 a summary of environmental assessments was undertaken for the Department of Defence, when it proposed moving infrastructure at Moorebank to Holsworthy. According to this summary evidence of koalas was not found and if there were koalas they would be ‘ . . . unlikely to be an important koala population”.
More recently on the north coast, the NSW Department of Primary Industries has been employing digital recorders to find koalas. According to an ABC report spokesperson Dr Brad Law said ” . . . We’ve got two main aims. One is to look at the status of koalas across the northeast forests, [The other] is how is their level of occupancy responds to different levels of timber harvest and time since harvest — so we want to look at the effects of logging on koalas.”
Brad went on to say “They’ve been surprised by what the sound recordings have revealed. In the 1990s, there had been a spotlighting survey for koalas over roughly the same study area in northeast NSW. Close to 200 sites were surveyed and koalas were only detected on about 5 per cent of sites using spotlighting. But [using the song meters] we’re finding about 80 per cent of the sites we’ve got koalas.”
So it would appear that logging has proceeded over the past 20 years in areas with koalas and the intention is to continue this management.
Meanwhile on the far south coast, around the area of the red circle on the map, Forests NSW has been undertaking extensive ‘fuel reduction burns’ over some 6,000 hectares. While forestry believe this will make the forests healthy, it also gets rid of koalas.
Whatever the reasons for this management, if one were looking for other koalas on the south coast this would be the place to start. So the notion that forestry found evidence of koalas cannot be excluded.