Safe havens protect some Australian mammals from feral cats and foxes

Feral cats and red foxes now roam across almost all of Australia, becoming the continent’s most pervasive introduced predators. Their widespread distribution has been linked to the decline of numerous native species, with scientific studies attributing a significant portion of recent extinctions to predation by these animals.

The impact is most acute in fragile ecosystems such as the arid interior and coastal wetlands, where many small mammals, reptiles and ground‑nesting birds have few natural defenses. Surveys indicate that populations of species such as the bilby, the western quoll and several endemic reptiles have fallen by more than 50 % in the past two decades, a trend that aligns closely with the expansion of feral cat and fox ranges. Conservation agencies have responded with targeted culling, baiting programmes and habitat restoration projects, but the predators’ high reproductive rates and adaptability continue to challenge control efforts.

While management initiatives have slowed the loss of some species, the persistence of feral cats and foxes remains a major obstacle to Australia’s biodiversity recovery. Continued investment in predator control and monitoring will be essential to safeguard the continent’s remaining native fauna.