Ronsheim, Margaret L. Department of Biology, Vassar College. Poughkeepsie, New York.
Last reviewed:June 2019
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- Invasive species and their effects on native species, published June 2012:Download PDF Get Adobe Acrobat Reader
- Brown tree snakes and Burmese pythons
- Disease and insect pests
- Chestnut blight
- Emerald ash borer
- Ecosystem transformers
- Future conservation
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A species translocated from one region or continent to another outside its normal range, particularly when the translocation is the result of human activity (intentional or otherwise). Many thousands of species, including animals, plants, fungi, bacteria, and viruses, have been transported to areas outside their native ranges and have successfully established new populations there. If one of these introduced species then causes significant negative ecological, economic, or human-health impacts, it is categorized as an invasive species (also termed a nonnative or nonindigenous species) [Fig. 1]. See also: Biogeography; Ecological communities; Ecology; Invasion ecology; Invasive forest species; Invasive lionfish; Population dispersal; Population dispersion; Population ecology; Population viability
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