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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

  • Alder Dieback

    Infects and kills alder trees (trees of the genus Alnus) (Gibbs et al. 1999)

  • Nutria

    Damages vegetation and destroys habitat in wetlands (Jojola et al. 2005)

  • 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

  • West Nile Virus

    Infects birds and mammals (including humans). West Nile virus is primarily an avian pathogen, and is transmitted among birds by ornithophilic (bird-biting) mosquitoes; including the Asian tiger... more

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