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Articles on Invasive species

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The round goby is an invasive fish that has become established in the St. Lawrence River over the past two decades, following its introduction into the Great Lakes. (Cristina Charette)

St. Lawrence River zones that are hostile to invasive species can be refuges for native fish

Wetlands can help limit the spread of the voracious round goby, an invasive species that has infiltrated the Great Lakes and has become widespread in the St. Lawrence River.
Alien trees threaten biodiversity, increase the risk of wildfires and also guzzle water. Photo courtesy Cape Winelands Biosphere Reserve

Removing alien plants can save water: we measured how much

Clearing alien trees from mountain catchments is a more cost-effective approach to providing water than building and maintaining desalination plants.
Alien pine trees, which use substantially more water than the native vegetation of the Cape Mountains, reduce river flows to dams that supply the city’s water. Martin Kleynhans

Clearing alien trees can help reduce climate change impact on Cape Town’s water supply

Clearing alien trees before the drought hit could have reduced the impact of climate change on water supply during the ‘Day Zero’ drought.

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