They live in the organic matter or the topmost layer of soil. These invasive worms are members of the genera Metaphire and Amynthas. Unfortunately, both native earthworms and European nightcrawlers are now being displaced by the destructive jumping worms. As the tunnels were created, the earthworms mixed soil components and improved air and water movement. Forests developed without them, but in time European earthworms appeared and began to burrow through the soil. There are still native species of earthworms in a few areas of North America, but in states where glaciation occurred, the native species were wiped out. They can be found in the Southeast, along the Eastern Seaboard, and in the mid-Atlantic, Midwest, and some Northwestern states. Jumping worms, also called crazy worms, are a relatively new invasive species from Asia but are rapidly spreading across the United States.
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