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National Invasive Species Information Center (NISIC)

The gateway to invasive species information; covering federal, state, local and international sources.
Invasive species are plants, animals, or pathogens that are non-native (or alien) to the ecosystem under consideration, and whose introduction causes or is likely to cause harm.

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Slideshow of Featured Species

  • Chinese Mitten Crab

    Interference with fish salvage operations, fish passage facilities, water treatment plants, power plants, and other facilities (Cohen and Weinstein 2001)

  • Chestnut Blight

    Fungal disease of chestnut trees (Castanea spp.) that virtually eliminated mature American chestnuts (Castanea dentata) from the U.S. (Griffin 2000)

  • Colonial Sea Squirt

    Forms dense colonies that can smother native species (Bullard et al. 2007)

  • European Starling

    Competes with native species; destroys crops (Fofonoff et al. 2003)

Featured News and Resources

News

Read the latest invasive species research news from ScienceDaily

What's New

See what's new on NISIC's Web site

Identify

Identify species that may be invasive

Calendar and Events

Find invasive species related conferences and events