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Non-native earthworms in Canada: Entering the second wave of invasion

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Most of the earthworms that we have in Canada are relatively recent arrivals. Non-native earthworms are highly influential ecosystem engineers that fundamentally change the habitats that they invade. With no practical means of control, it is important to understand how earthworms spread, what they change when they arrive, and how we can learn to manage and live with these new invaded ecosystems.