Coordinating lead author of the report Dr Andy Sheppard said the best approach to managing invasive species was prevention, but this required ongoing funding and international commitment.

Factors such as trade and travel, climate change, and habitat clearing are among the key drivers for invasive species spreading, the report notes. While invasive species flourish in warmer, cooler, wetter or drier surroundings, some native species struggle to adapt to shifting weather patterns.

Australian Chief Environmental Biosecurity Officer Dr Bertie Hennecke said these drivers would continue to pose risks in the coming years.

“The world is changing at a pace we have never seen before,” he said. “The task for the biosecurity system is increasingly complex and creating new challenges for government and industry. We are facing multiple incursions.”

Lead author of the report Professor Phill Cassey said Australian states and territories have different management approaches for invasive species, and that coordinated national agreements could work better.

There are more than 200 invasive species that threaten Australia’s biodiversity, among them the European rabbit, which impacts 325 threatened land species, while the feral pig and cat both impact more than 100 threatened species.

Invasive Species Council conservation and biosecurity analyst Lyall Grieve backed the report’s claim that the Australian government needed to increase its efforts to ensure there were no new extinctions, a promise Environment Minister Tanya Plibersek made last year.

“Our geographic isolation means we are home to species that occur nowhere else on earth, but this unique web of life is also very vulnerable to invaders like feral cats, fire ants or new fungal diseases like myrtle rust,” Grieve said.

“If we are to genuinely protect and restore our native wildlife and ecosystems, then stopping the next wave of invasive species must be a priority. That will take focus and serious new funding.”

Plibersek said Australia was the mammal extinction capital of the world and cats played a role in two-thirds of mammal extinctions over the last 200 years.

“Every year, cats kill two billion reptiles, birds and mammals per year in Australia. That’s almost 6 million every night,” she said.

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That’s why tackling feral cats, foxes and other invasives is a priority for the government, she said.

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