Articles on Invasive species

Displaying 41 - 60 of 382 articles

A close up image of a spiny water flea. An invasive species in North America, the spiny water flea has caused extensive damage to freshwater ecosystems across Canada. (Sam Lucy Behle)

How the invasive spiny water flea spread across Canada, and what we can do about it

The invasive spiny water flea is spreading fast across Canada. Awareness is key to curtailing its growth.
Not all introduced species are a problem. The introduced Siberian Elm is an example of an “invasive” species which adapts well to its new ecosystem, providing benefits at the same time. (Shutterstock)

Climate change means we may have to learn to live with invasive species

Invasive species are not always harmful; some can even provide key benefits to native habitats in an era of climate change. Canadian conservation efforts should embrace the movement of species.
Invasive species (including the plant species, Eurasian watermilfoil, pictured here) pose a real risk to many of Canada’s freshwater habitats. (Shutterstock)

Invasive species are reshaping aquatic ecosystems, one lake at a time

Freshwater ecosystems in Canada, and around the world, are more fragile than they look and vulnerable to invasive species. Canada’s lakes and rivers require constant vigilance to protect from invasion.
Wild chickens, hens and cocks strut through a parking lot in search of their next meal in Kauai, Hawaii. bluestork/Shutterstock

Why every island’s wildlife ends up looking alike

Wherever humans set foot, they bring with them invasive exotic species. Some animals and plants that are particularly useful to humans are now found all around the globe.

Top contributors

More