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Integrating Expert Knowledge at Regional and National Scales Improves Impact Assessments of Non-native Species by Katharina Dehnen-Schmutz; Oliver L. Pescott; Olaf Booy; Kevin J. Walker is a Environmental Science article available to read on EtoBox.

What is Integrating Expert Knowledge at Regional and National Scales Improves Impact Assessments of Non-native Species about?

Knowledge of the impacts of invasive species is important for their management, prioritisation of control efforts and policy decisions. We investigated how British and Irish botanical experts assessed impacts at smaller scales in areas where they were familiar with the flora. Experts were asked to select the 10 plants that they considered were having the largest impacts in their areas. They also scored the local impacts of 10 plant species that had been previously scored to have the highest impacts at the scale of Great Britain. Impacts were scored using the modified classification scheme of the EICAT framework (Environmental Impact Classification for Alien Taxa). A total of 782 species/score combinations were received, of which 123 were non-native plants in 86 recording areas. Impatiens glandulifera, Reynoutria japonica and Rhododendron ponticum were the three species considered to have the highest impacts across all regions. Four of the species included in the list of the 10 highest impact species in Great Britain were also in the top 10 of species reported in our study. Species in the higher impact categories had, on average, a wider distribution than species with impacts catego

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Author

Katharina Dehnen-Schmutz; Oliver L. Pescott; Olaf Booy; Kevin J. Walker

Publisher

Pensoft Publishers

Published

2022

Language

EN

Field

Environmental Science (Physical Sciences)