Dasyurus maculates (DASYURIDAE) Spotted-tailed Quoll

Mammals

Four species of quoll occur in Australia: the northern, spotted-tailed, eastern and western quolls. Once, most parts of Australia were inhabited by at least one of the species. Spotted-tailed (tiger) quolls appear to be making a comeback in some areas, notably the western and southern outskirts of Brisbane. The ABC reported a Queensland Museum confirmation of the occurrence in the Logan area from scats analysed in March 2021. 

The Spotted-tailed Quoll measures 500 mm, with a tail length of 450 mm. It is the size of a cat, with dark, ginger-brown fur and white splotches on its body and tail. Quolls are carnivorous marsupials with a pointed snout, a long tail and brown to black fur distinctively spotted with white. They are lively, attractive animals, with bright eyes, a moist pink nose and many sharp teeth. The largest species, the Spotted-tailed Quoll, eats birds, reptiles and mammals such as bandicoots, possums, echidnas and rabbits. The smaller quolls eat mainly insects, birds, frogs, lizards, snakes, small mammals and fruit. Quolls also eat carrion (dead animals), and sometimes scavenge around campsites and rubbish bins. 

Like most Australian mammals, quolls are mainly active at night. Typically, they spend the day in one of their many dens, although spotted-tailed quolls and northern quolls sometimes forage and bask in the sunshine. Their large home ranges can extend for several kilometres in each direction from a smaller core range, and the range of a male quoll often overlaps those of several females. An interesting feature of their behaviour is the use of shared latrine (toilet) sites in open spaces such as rock ledges, for marking their territory and other social functions.

Male quolls travel widely during the breeding season, with mating occurring during winter. All four species have a gestation period of 21 days. Because they are marsupial mammals, their young are born tiny and undeveloped and must work their way to the pouch, where they attach themselves to a teat to feed. Only the Spotted-tailed Quoll has a true pouch. In the other species, the young are protected by shallow folds of skin around the teats. As the pups grow, they dangle from the mother’s belly; later, she carries them on her back. Quolls reach sexual maturity at one year. They have a naturally short life span, with smaller quolls living an average of only two years, and the larger spotted-tailed quolls about four to five years. The northern quoll is particularly short-lived. 

Photo: Robert Whyte