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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

  • Didymo

    Alters stream ecology by forming dense algal blooms that can cover up to 100 percent of stream bottoms (Spaulding and Elwell 2007)

  • Oriental Fruit Fly

    Destructive pest of fruits and vegetables (Weems and Heppner 2016)

  • Chilli Thrips

    Attacks and causes significant damage to over 100 vegetable, ornamental, and fruit crops, particularly peppers, eggplant, and tomatoes (Nietschke et al. 2008)

  • Red Imported Fire Ant

    Can attack and cause painful stings on humans, pets, and livestock (Jemal and Hugh-Jones 1993)

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