Invasive Species
침입종
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<speciesfyi-glossary slug="invasive-species"></speciesfyi-glossary>Definition
A non-native organism whose introduction to a new area causes ecological or economic harm.
Detailed Explanation
Invasive species are among the leading causes of native species extinction, particularly on islands. They succeed through multiple mechanisms: releasing predators or competitors not adapted to them, outcompeting natives for resources, and spreading novel diseases. Cane toads in Australia, brown tree snakes in Guam (eliminating 12 native bird species), and zebra mussels in North American waterways illustrate the ecological devastation invasives can cause.