Home / Environment / Wallabies Invade Isle of Man: Cute Invaders Threaten Ecosystem
Wallabies Invade Isle of Man: Cute Invaders Threaten Ecosystem
15 Jun
Summary
- Around 800 wallabies now dominate Ballaugh Curraghs, impacting its international wetland status.
- Wallabies can transmit toxoplasmosis and liver fluke, posing risks to humans and wildlife.
- Ecological damage includes loss of rare plants and displacement of hen harriers.

Ballaugh Curraghs on the Isle of Man is grappling with an escalating population of red-necked wallabies. Introduced in the 1960s, an estimated 800 wallabies now significantly alter this once-important international wetland site.
The growing wallaby numbers have led to ecological degradation, with rare plant species being consumed and native wildlife displaced. Historically a winter roost for over 100 hen harriers, the area now sees wallabies grazing nightly, forcing the birds to leave.
Beyond environmental concerns, the wallabies pose health risks. They are known carriers of toxoplasmosis, which can cause spontaneous abortions in women, and liver fluke has been identified in post-mortem examinations of wallaby road casualties.
Concerns also extend to road safety, particularly with the annual TT races. The Manx Wildlife Trust is developing a management policy to address the complex issues of animal welfare, local ecosystems, and economic impacts, acknowledging that the wallabies are likely a permanent fixture.