An official website of the United States government

The .gov means it’s official.
Federal government websites always use a .gov or .mil domain. Before sharing sensitive information online, make sure you’re on a .gov or .mil site by inspecting your browser’s address (or “location”) bar.

This site is also protected by an SSL (Secure Sockets Layer) certificate that’s been signed by the U.S. government. The https:// means all transmitted data is encrypted  — in other words, any information or browsing history that you provide is transmitted securely.

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.

Slideshow of Featured Species

  • Soybean Rust

    Disease of soybean and other legumes; P. pachyrhizi can reduce soybean yields up to 80% (Schnepf 2005); P. meibomiae is less virulent but has a broader host range (CABI)

  • Multiflora Rose

    Forms dense thickets that invade pastures and crowd out native species (Munger 2002)

  • Northern Snakehead

    Preys on and competes with native species (NAS Database)

  • Red-Eared Slider

    May compete with native turtle species (Hegan 2014)

Featured News and Resources


Read the latest invasive species research news from ScienceDaily

What's New

See what's new on NISIC's Web site


Identify species that may be invasive

Calendar and Events

Find invasive species related conferences and events