This term seems to be new, but has recently been popularised through a book by Chris Bright of the Worldwatch Institute in Washington, DC, called Life Out of Bounds, Bio-invasion in a Borderless World. He describes how the traditional geographical barriers between species have broken down as a result of human activity. Plants and animals are transported on purpose or by accident all around the world by carriage on ships and aircraft. Ecosystems that have been isolated for millions of years are being invaded by exotic species, with catastrophic effects. The Everglades are being taken over by the Australian melaleuca tree, the Asian tiger mosquito is greatly expanding its range, bringing dengue fever and other diseases, the Amazonian water hyacinth has spread along the margins of Lake Victoria, where it impedes fishing, and Leidy’s comb jelly has been introduced to the Black Sea, where it has caused the collapse of the ecosystem. The consequences of bioinvasions are sometimes called biopollution. The term may be new, but the concept has been well understood among ecologists for many years; some are even predicting that in a century or so all we shall have left are the versatile and aggressive species.
Because it brings the intelligence of evolution to bear, bioinvasion is a kind of “smart” pollution.
AmeriScan, Oct. 1998
In 1993, for example, the Office of Technology Assessment estimated the economic cost of 79 major bioinvasions at $97 billion.
New Scientist, Nov. 1998
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