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Articles on Invasive species

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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.
A boat navigates at night next to large icebergs in eastern Greenland. (AP Photo/Felipe Dana)

Arctic Ocean: climate change is flooding the remote north with light – and new species

The Arctic has been a remote place for much of its history. But climate change is bringing global problems and opportunities to its door.
Australia’s dingo fences, built to protect livestock from wild dogs, stretch for thousands of kilometers. Marian Deschain/Wikimedia

Fences have big effects on land and wildlife around the world that are rarely measured

Millions of miles of fences crisscross the Earth's surface. They divide ecosystems and affect wild species in ways that often are harmful, but are virtually unstudied.
Buffel grass surrounding Hakea divaricata, a bushfood and medicine tree. Ellen Ryan-Colton

The buffel kerfuffle: how one species quietly destroys native wildlife and cultural sites in arid Australia

Buffel grass causes just as much damage to native wildlife as feral cats. But with the right control measures, biodiversity can bounce back.

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