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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. Learn what determines if a species is invasive.

Slideshow of Featured Species

  • Old World Bollworm

    Feeds on a large range of plant hosts and could cause serious economic losses to corn and cotton in the U.S. (Tay et al. 2013)

  • Avian Influenza

    Infects poultry, waterfowl, and occasionally mammals (including humans) (CABI)

  • Golden Nematode

    Capable of causing a 100% loss in potato yields (Brodie and Mai 1989)

  • Russian Wheat Aphid

    Pest of wheat and barley (Shufran et al. 2007)


Climate Change

Learn how climate change impacts invasives species

What's New

Find the latest resources that have been added to NISIC's Web site


Read the latest invasive species research news from ScienceDaily

Calendar and Events

Find invasive species related conferences and events around the world