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Articles on Invasive species

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‘One of the most damaging invasive species on Earth’: wild pigs release the same emissions as 1 million cars each year

Wild pigs are on every continent, except Antarctica. All up, they likely turn over the the same amount of soil as the area of Taiwan.
Whooping cranes were hunted extensively through the early 1900s, and by 1941, only 22 remained. They breed in Wood Buffalo National Park, in Alberta. (Shutterstock)

Environmental laws in Canada fall short of addressing the ongoing biodiversity crisis

A bewildering array of laws and regulations cover species and ecosystems in Canada, making their protection inadequate.
Wildfires are the inevitable consequence of three factors coming together at the same time: an ignition, the weather and fuel. Brenton Geach/Gallo Images via Getty Images

The Table Mountain fire: what we can learn from the main drivers of wildfires

The fynbos vegetation that historically clothed the slopes of Table Mountain is highly inflammable. This has been worsened by the spread of alien trees that burn more intensely than the fynbos.
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Attack of the alien invaders: pest plants and animals leave a frightening $1.7 trillion bill

Invasive species have been invading foreign territories for centuries. By quantifying the mammoth economic impacts, we hope political leaders will start to take notice.
The European fire ant, Myrmica rubra, is one of the invasive ant species in Ontario. They are known for their painful sting. (Jon Sanders)

Ant invasion: How pets become pests

Animals that are traded as pets are more likely to be invasive species, including a relatively new pet: ants.
In August 2019 in the port of Marseille. The docking of cruise ships intensifies air pollution. Christophe Simon/AFP

Is the Mediterranean Basin really a hotspot of environmental change?

The Mediterranean region, with its biodiversity, climate, demographics, and economic activities such as tourism, agriculture and fisheries, is particularly vulnerable to environmental risks.

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