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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.

Welcome to our updated site! About our Web site redesign.

Slideshow of Featured Species

  • Zika Virus Disease

    The most common symptoms of Zika are fever, rash, joint pain, and conjunctivitis (red eyes). The illness is usually mild with symptoms lasting for several days to a week after being bitten by an... more

  • Screwworm

    Parasite that kills livestock and wildlife, particularly cattle (CFSPH 2006)

  • Yellow Star Thistle

    Crowds out native species; toxic to horses (Zouhar 2002)

  • White-Nose Syndrome

    Disease of bats causing a population decline of 72 to 88 percent of hibernating species in the northeastern U.S. (Lorch et al. 2012; Puechmaille et al. 2011)

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