Rock-wallaby

Lore & Background

Rock-wallabies live in small groups or colonies, with individuals having overlapping home ranges of about 15 ha each. They are highly territorial, with a male's territory overlapping one or more female territories. Even at night, they do not move further than two kilometers from their home refuges. Their reliance on refuges leads to a fortress-like existence: they spend days in steep, rocky, complex terrain in caves, overhangs, or vegetation, and range out at night to feed, with greatest activity three hours before sunrise and after sunset. Suitable habitat is limited and patchy, leading to varying degrees of colony isolation and genetic differentiation. Three preferred habitat categories are loose piles of large boulders, cliffs with mid-level ledges and caves, and isolated rock stacks.

Reader's Guide

Rock-wallabies are significant as the most diverse macropod genus, with high speciation driven by isolation in complex habitats. Their numbers and range have drastically reduced since European colonisation, with populations becoming extinct in the south. Scientists consider red foxes the major reason for recent extinctions, along with competing herbivores (goats, sheep, rabbits), diseases such as toxoplasmosis and hydatidosis, habitat fragmentation, and lower genetic health due to increasing colony isolation. Conservation efforts include habitat conservation, pest management (red foxes and goats), captive breeding programs, and monitoring of population sizes and genetic diversity. In the case of the yellow-footed rock-wallaby, these strategies have prevented extinction in New South Wales.

Did You Know?

• They are nocturnal and do not move further than two kilometers from their home refuges at night.
• Red foxes are considered the major reason for recent extinctions of rock-wallaby colonies.