Barkly Tableland Death Adder

Acanthophis hawkei is a stout, heavily built elapid snake with a broad, triangular head and a thin, worm-like tail tip used to lure prey. Unlike most elapids, it is an ambush predator, lying motionless and camouflaged among leaf litter or vegetation, twitching its tail to attract lizards, frogs, and small mammals before striking. Its venom is highly potent, delivered through a rapid strike rather than pursuit.

As a sit-and-wait predator, it plays a role in regulating small vertebrate populations within its habitat while also serving as prey for larger predatory birds and reptiles.

The species is restricted to northern Australia, particularly the Barkly Tableland region spanning parts of the Northern Territory and Queensland. It occupies grasslands and inland wetlands, including seasonally inundated floodplains, where it relies on ground cover for concealment.

Population decline is linked to several ongoing pressures. Livestock grazing degrades ground vegetation and leaf litter that the species depends on for camouflage and ambush hunting, while trampling poses direct risks. Altered fire regimes, including more frequent and intense fires, reduce habitat quality and prey availability.

Invasive species, notably the cane toad, present a significant threat, as death adders are highly susceptible to poisoning when attempting to consume this toxic prey item.

Conservation attention has focused on monitoring population trends across its limited range and research into cane toad impacts on native predators. Habitat protection within existing conservation reserves offers partial refuge, though grazing and fire management across the broader landscape remain largely unregulated.

Given the combination of habitat degradation and the ongoing spread of cane toads across its range, the species' population is expected to continue declining, warranting its classification as Vulnerable.