Given the complexity and dynamic nature of the relationships in any ecosystem, predicting how each case will turn out is very difficult. He also cautions that our efforts to control or eliminate invasive species can be tremendously expensive, are rarely successful, and often have damaging unintended consequences. For example, the herbicides used to try to eliminate invasive plants often have devastating impact on vulnerable native species. The cure, in some of these cases, is worse than the disease, he says. Professor Thompson says the invasive species we might worry about most is actually us. Humans have spread to every corner of the globe, and altered a huge amount of the planet.
Posted on: Sat, 27 Dec 2014 15:05:56 +0000
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