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BioRisk 4: 51-71
doi:
10.3897/biorisk.4.42
Published:
06 Jul 2010
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Authors
Marc Kenis 
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CABI Europe-Switzerland, Delémont, Switzerland
Centro de Estudos Florestais, Instituto Superior de Agronomia, Technical University of Lisbon, Lisbon, Portugal
Conflict of interest
The authors have declared that no competing interests exist.
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