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Invasive Species

What are invasive species?

Invasive species are plants or animals that are not native to the ecosystem and cause or will likely cause economic harm, environmental harm, and/or harm to health. Sometimes, invasive species are introduced to an ecosystem intentionally, and other times the introduction is accidental. Regardless of how the invasive species were introduced, they can impact ecosystem processes once in the new ecosystem location.

Why is this a problem?

Invasive species can out-compete native species, displacing native plants and animals and using their food or nutrient sources, spreading rapidly in areas without natural predators. In Michigan, there are hundreds of terrestrial and aquatic invasive species. Prevention to keep invasive species out is the first line of defense. It can be hard to rid an ecosystem of invasive species once established. However, there are projects students can participate in to help control invasive species populations, such as pulling invasive plants.

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Page last modified July 30, 2026