In our increasingly connected world, global trade and travel are accelerating the movement of organisms to places that they couldn’t have reached without our help. It is a thoughtless rearrangement of misplaced creatures, or as one biologist put it, “evolution on steroids.”
Biological invasions rank second to habitat loss as a threat to native biodiversity. Most people are unaware of the enormous problem, partly because the invaders are so common, and partly because few understand that our pests, weeds, and diseases are related.
The extinction rate is accelerating rapidly. Over the next 100 years, it is estimated that roughly half of the species on Earth will completely or functionally disappear. Forty percent of those extinctions are caused by invasions. And we are …[ … ] Read The Full Story