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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

  • Veined Rapa Whelk

    Preys on bivalves, such as clams, oysters, and mussels (Mann et al. 2004)

  • Citrus Longhorned Beetle

    Attacks numerous species of hardwood trees including Citrus spp., but also pecan, apple, Australian pine, hibiscus, sycamore, willow, pear, mulberry, pigeon pea, China-berry, poplar, litchi, kumquat... more

  • Multiflora Rose

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

  • Spotted Knapweed

    Crowds out native species and forage for livestock (Zouhar 2001)

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