The Black-striped Wallaby (Notamacropus dorsalis, formerly Macropus dorsalis) is a medium-sized, grass-eating macropod native to eastern Australia. It takes its name from the distinctive dark stripe that runs along the midline of the back from the shoulders towards the base of the tail. Once more widespread, the species has declined in many parts of its range due to habitat loss, fragmentation and predation by introduced carnivores.
Taxonomy and naming
The Black-striped Wallaby belongs to Class Mammalia, Order Diprotodontia, Family Macropodidae and Genus Notamacropus. It was long placed in the genus Macropus, and older literature frequently refers to it as Macropus dorsalis. Common English names include Black-striped Wallaby and, in some contexts, Black-striped Rock-wallaby, both alluding to the dark dorsal stripe that characterises the species.
Physical characteristics
This wallaby is lightly built but muscular. Adults typically have a head-body length of about 60–70 cm, with a tail that is close to or slightly shorter than the body length. Adult weight generally ranges from about 6–12 kg, with males tending to be somewhat larger and heavier than females. As with other wallabies, the hindlimbs are long and powerful, adapted for bounding locomotion, while the forelimbs are shorter and used mainly for feeding and support.
The coat is usually grey-brown to yellow-brown above, with paler flanks and a whitish underside. The most striking feature is a dark, almost black stripe running along the spine, giving the species its common name. The face often shows pale cheek stripes or patches contrasting with a darker eye line, and the ears are upright with pale inner fur. The tail is strong and furred, providing balance during rapid, bounding movement across uneven ground.
Distribution and habitat
The Black-striped Wallaby occurs in parts of eastern Australia, with core populations in central and southern Queensland and in parts of northern New South Wales. Its distribution has contracted from former historical limits, and many populations are now patchy and fragmented. It inhabits dry and semi-arid woodlands, open eucalypt forests, shrublands, rocky hills and ecotones between grasslands and shrubby cover.
Within these habitats, the species tends to favour areas that offer a combination of ground-level grazing and nearby cover. Individuals often rest by day in dense shrubs, tall grasses or among rocks, moving out onto more open flats and grassy slopes at dusk to feed. Extensive clearing of scrub and conversion of native vegetation to pasture or cropland reduces both food diversity and shelter, contributing to local declines.
Behaviour and lifestyle
Black-striped wallabies are mostly crepuscular and nocturnal. During the day they remain hidden in cover and become more active from late afternoon through to early morning. They usually live in small groups or loose family parties rather than large mobs; these may include one or more adult females with dependent young and males that join more regularly during the breeding season.
Movement is dominated by bounding on the hind legs, with the tail acting as a counterbalance. When alarmed, individuals flee rapidly towards dense vegetation, rocky outcrops or gullies where they can shelter. Home ranges tend to be relatively stable, and wallabies may use well-worn paths between resting sites and feeding areas.
Diet
The Black-striped Wallaby is primarily herbivorous and feeds on grasses, sedges and other ground-layer plants, as well as the leaves and young shoots of shrubs. When rainfall is good and green feed is abundant, it selects the most nutritious young shoots and leaves; during drier periods it relies more heavily on drought-tolerant grasses and other hardy plants that retain some moisture.
Its flexible diet allows it to exploit a range of plant communities, but heavy livestock grazing and the replacement of native vegetation with exotic pasture species can alter plant composition and reduce the quality of available forage.
Reproduction and life cycle
Breeding may occur at different times of year across the species’ range but generally follows a pattern typical of wallabies, with the capacity for multiple litters under favourable conditions. Females usually give birth to a single tiny joey after a short gestation of around one month. The newborn climbs into the forward-opening pouch, attaches to a teat and continues development there for several months.
Joeys start to poke their heads out and make short excursions from the pouch after about six to seven months, spending increasing amounts of time outside while still returning to suckle. They remain dependent on the mother for a period after permanently leaving the pouch until fully weaned and able to fend for themselves. In the wild, Black-striped Wallabies are thought to live roughly 7–10 years, with individuals in captivity potentially surviving longer.
Relationship with humans
In parts of its range, the Black-striped Wallaby overlaps with grazing lands, where it may be regarded as a competitor for pasture. It can be vulnerable to attack by domestic dogs, and fences, roads and other infrastructure can fragment habitat or cause direct mortality through vehicle collisions. Because it is smaller and more secretive than some larger kangaroo species, it may be less frequently observed but still affected by the same land-use changes.
At the same time, the species contributes to the ecological character of eastern Australian woodlands and shrublands and is of interest for nature-based tourism and environmental education. Land management practices that retain native vegetation cover and allow for coexistence of wildlife and livestock can help reduce conflicts.
Conservation status and threats
The Black-striped Wallaby has experienced regional declines associated with habitat clearance, fragmentation and changes in fire and grazing regimes. It is generally considered to be near the threshold of threatened categories in some assessments, with an overall trend of reduced range and local population losses in heavily modified landscapes.
Major threats include clearing of native woodlands and shrublands for agriculture, overgrazing by livestock, predation by introduced red foxes and feral or uncontrolled domestic dogs, roadkill and the impacts of prolonged droughts and climate variability on vegetation and water availability. Conservation priorities include protecting and restoring key habitats, managing grazing and fire to maintain structural diversity of vegetation, controlling invasive predators and monitoring populations to better understand trends and inform future listing and management decisions.
