An invasive species is an exotic species (one that has been deliberately or accidentally introduced into a habitat it would not normally populate) that thrives in its new environment, disrupting the natural ecosystem. The majority of exotic species have been introduced unintentionally, as when hitchhiking organisms such as seeds or insects attach to people's shoes, clothes, or luggage when they travel. Most of the time, the exotic species cannot survive in its new environment, as changes in climate, resources, and competition simply do not favor survival, and the organism eventually dies out. Occasionally, the introduced species ends up being invasive, out-competing the natural habitat for resources, displacing native flora and fauna, and wreaking economic havoc on a community.
When a...Read more