fox predation, competition with domestic and wild introduced species (particularly goats and cattle), climate change, reduced access to water sources, habitat loss and fragmentation, and increase in bushfires. The population of P. x. celeris was estimated to be 5,000-10,000 individuals in 1993, but is now considered unknown. Conservation Previously the species has been killed in large numbers for its pelt, primarily through the period between the 1880s and 1920s. The yellow-footed rock-wallaby was originally known and described from specimens from South Australia. The species was subsequently discovered in New South Wales (and Queensland) where it was first recorded in 1964 in the Coturaundee Ranges, now part of Mutawintji National Park. The two small mountain ranges in the far west of the state are still the only known places where the species survives in New South Wales. In 1968, the Arkaroola Wilderness Sanctuary was established on the Arkaroola pastoral lease, with a specific goal of protecting the yellow footed rock wallaby. Conservation activities include extensive fox baiting, and the control of feral cats and goats, as well as occasional hand-rearing of abandoned joeys. In 1979, the Foundation for National Parks & Wildlife purchased 100 square kilometres of this land, which then became Coturaundee Nature Reserve, for the conservation and protection of the yellow-footed rock-wallaby. Further funds were allocated to fox and goat eradication. Annual surveys of the area, which is now part of Mutawintji National Park, indicate that the population is now recovering, seemingly having grown progressively since 1995, with at least one large fluctuation due to rainfall changes noted. The recovery strategy that saved the yellow-footed rock-wallaby initially served as a model to preserve other rock-wallabies, including the brush-tailed rock-wallaby, from extinction. From 1998, when the first Indigenous Protected Area was set up adjacent to the southern boundary of the Gammon Ranges National Park, near Nepabunna, the Adnyamathanha people have been helping to protect the rock wallaby at Nantawarrina IPA. The Adnyamathanha people call the animal andu. Gallery See also Arkaroola Wilderness Sanctuary Aroona Sanctuary Bunkers Conservation Reserve Telowie Gorge Conservation Park Wapma Thura–Southern Flinders Ranges National Park References Macropods Mammals of South Australia Mammals of New South Wales Mammals of Queensland Marsupials of Australia Mammals described in 1855 Taxa named by John Edward Gray