Calling species 'invasive'—and culling them—isn't done lightly. But it matters to Australia's threatened species
It may sound abstract, but distinctions between "native," "introduced" or "invasive" species can often be life or death. Species considered invasive in Australia—such as European rabbits and feral pigs—are often culled, while most native animals are generally left alone.
Australia's native species, having evolved in isolation for millions of years, hold significant ecological and cultural value. However, the introduction of foreign species can pose severe threats. These invasive species, such as European rabbits and feral pigs, are often targeted through culling to safeguard native wildlife. The debate around this issue, though often overshadowed, gained traction when an independent senator proposed a plan to protect Australia's landscapes and wildlife from invasive species.
Critics argue that labeling species as invasive is unnecessary and detrimental, as it can lead to harmful treatment of animals. Ecologists emphasize that invasive species pose a significant threat to biodiversity, alongside habitat destruction, climate change, disease, and pollution. Two major invasive predators, foxes and feral cats, have contributed to the recent extinctions of native Australian mammal species.
While conserving native species is crucial, sometimes lethal control measures are necessary to prevent further declines. For instance, the reintroduction of the numbat on Phillip Island, following the removal of feral cats and foxes, led to a resurgence in their population. Despite these successes, some claim native species are in worse shape than ever, attributing this to past culling efforts.
Written by urgent.news from Phys.org's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
