Quantifying the social and economic benefits of weed biological control

Dr. Brian van Wilgen, Emeritus Professor at the Centre for Invasion Biology, Department of Botany and Zoology at Stellenbosch University, South Africa, talks …

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  1. I believe the first thing that we must do is to think clearly about what is going on. We get caught up talking about why these organisms are "bad" or what economic difficulties they present. We need instead to ask first what it is doing and why is it doing it. Among these answers are these invasives are becoming new species and that they are prospering because we have created the disturbed conditions for them. It's like the great American interchange we need to intergrate these organisms rather than talking about extermination. Biological control is a solid step in this direction.

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