Exotic threats
The brown tree snake, Boiga irregularis, is an exotic species that has caused numerous extinctions on the island of Guam since its accidental introduction in 1950.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"OpenStax College, Threats to Biodiversity. October 17, 2013."
http://cnx.org/content/m44896/latest/Figure_B47_03_03.jpg
OpenStax CNX
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