Flash floods sweep through vital sanctuary for Australian animals

Conservation workers are racing to protect a precious group of Australian animals after record rainfall in New South Wales led to floods that have killed four people.

Tasmanian devils (Sarcophilus harrisii), brush-tailed rock wallabies (Petrogale penicillata), eastern quolls (Dasyurus viverrinus), long-nosed potoroos (Potorous tridactylus) and broad-toothed rats (Mastacomys fuscus) are all kept fenced safely away from feral predators such as cats and foxes at the 400-hectare Aussie Ark sanctuary in Barrington Tops, New South Wales. The sanctuary’s animals are considered an insurance policy for their species, in case wild populations become extinct.

Since 2010, 500 devil joeys alone have been born there and around 50 of these have been released into a specially protected wild area. In coming years, some of these animals are expected to be released outside the sanctuary to re-establish Tasmanian devil populations on mainland Australia.

But this week, a severe low-pressure weather system has hit parts of New South Wales, leading to record-breaking storms. In just a few days, well over 400 millimetres of rain fell at the sanctuary. Even though it is at the top of a mountain at an altitude of 1200 metres, the park experienced flash flooding, sweeping away fencing that excludes feral animals and threatening to drown some of the breeding animals in smaller enclosures.

Tim Faulkner at Aussie Ark says many of the animals in the breeding enclosures have had to be brought into a makeshift emergency centre at the complex’s vet clinic. But the bigger problem facing the sanctuary is that around a kilometre of the 10-kilometre perimeter fence has been damaged or, in some locations, totally swept away by floodwaters.

“We’ve got about a kilometre of the fence that’s impacted from corner posts down, sections washed away and pushed over and strainer wires damaged,” says Faulkner. “The electrified hot wire is completely down, so we’re lucky we don’t have any Tyrannosaurus rex testing our defences.”

While the fences are damaged, Faulkner’s team has been camped out around the clock, keeping watch at breached sections. So far, no native species are thought to have escaped and no feral animals have entered.

“There’s water seeping, squeezing, pushing, running, pouring, flooding from every single little crack up here on the mountain, and I hate to think of all the wildlife that has also been devastated by these massive floods outside the sanctuary,” says Faulkner.