Earthworms, a threat to Canada's boreal forest?
The earthworm effect: Unraveling soil weathering dynamics
The three main ecological groups of earthworms. Earthworms differ in
U of A biologists investigate Alberta's earthworm invasion - The Gateway
Invasive earthworms are reshaping North American •
The Dirt on Alberta's Worm Invasion – AWES Agroforestry and Woodlot Extension Society of Alberta
Earthworms are invasive—and hurting insects—in much of North America
Earthworm Invasion Lesson Plan Grade 2 by On The Mark Press
Multiple invasion routes have led to the pervasive introduction of earthworms in North America
Center for Invasive Species and Ecosystem Health: Exotic Earthworm Invasion