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Scientific and normative foundations for the valuation of alien-species impacts: thirteen core principles

Essl, Franz ; Hulme, Philip E. ; Jeschke, Jonathan M. ; Keller, Reuben ; Pyšek, Petr ; Richardson, David M. ; Saul, Wolf-Christian ; Bacher, Sven ; Dullinger, Stefan ; Estévez, Rodrigo A. ; Kueffer, Christoph ; Roy, Helen E. ; Seebens, Hanno ; Rabitsch, Wolfgang

In: BioScience, 2017, vol. 67, no. 2, p. 166–178

Biological invasions cause many impacts that differ widely in how they are perceived. We argue that many conflicts in the valuation of the impacts of alien species are attributable to differences in the framing of the issue and implicit assumptions—such conflicts are often not acknowledged. We present 13 principles that can help guide valuation and therefore inform the management of alien...