Our Work

Invasive species include pest animals like feral cats and foxes, introduced marine pests, weeds, diseases, fungi and parasites, as well as insects from overseas like the European wasp.

Our Work  | Photo: Frankzed, Flickr CC BY 2.0

What are invasive species?

Along with climate change and habitat loss, invasive species is a leading threat to Australia’s wildlife.

Australia has one of the worst animal extinction records in the world, due mainly to invasive species. We are notorious for having lost by far the highest number of mammals in recent times, with foxes, cats or rabbits implicated in most of these extinctions.

Many island birds have been wiped out by introduced rats, and an exotic fungus has killed off frogs.

And the pace of invasion is by no means slowing down. Just one exotic pathogen Phytophthora cinnamomi threatens hundreds of plant species found nowhere else in the world, foxes and cats threaten the existence of many more mammals, and goats, pigs, camels, deer and others are degrading vast areas.

Weeds are increasingly dominating numerous ecosystems, fundamentally altering their composition and function, and invading the habitat of threatened species.

The Invasive Species Council campaigns to strengthen laws and policies to prevent future invasions and better protect the Australian environment against these threats.

Tough biosecurity laws can stop dangerous new invasive species from calling Australia home.

A warming world will favour many weeds and feral animals in Australia, with wilder weather speeding up the pace of invasion.

Feral animals wreak tremendous damage on our wildlife, cats alone kill an estimated 75 million native animals across Australia every night.

People, wildlife, agriculture, infrastructure – no aspect of our lives is safe from the destructive power of invasive insects.

Islands are critical habitat for around one third of Australia’s threatened animal species but also especially at risk from invasive species.

Often invisible to the naked eye, dangerous invasive pathogens can have a devastating impact on native animals and habitats.

If we want to protect what is most distinctive about Australia, the nature of Australia, we urgently need to address the threats facing facing our most vulnerable native species.

Invasive weeds take an enormous toll on our environment, altering ecosystems and threatening native plants and animals.

How to help

Volunteer with a local Bushcare group, demand government action, help us protect Australia’s cherished places and wildlife from invasive species.

What we do

Core to our work is protecting Australia's natural environment from harmful invasive species through prevention and early action.