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Trans-national horizon scanning for invasive non-native species: a case study in western Europe

Research output: Contribution to journalA1: Web of Science-articleResearchpeer-review

Authors

  • Belinda Gallardo
  • Alexandra Zieritz
  • Céline Bellard
  • Pieter Boets
  • Robert J Britton
  • Jonathan R. Newman
  • Johan L. C. H. van Valkenburg
  • David C. Aldridge

External Organisations

  • Department of Zoology, University of Cambridge
  • Laboratory of Environmental Toxicology and Aquatic Ecology, Ghent University
  • Department of Genetics, Evolution and Environment, Centre for Biodiversity and Environment Research
  • Department of Life and Environmental Sciences, Faculty of Science and Technology, Bournemouth University
  • Netherlands Food and Consumer Product Safety Authority
  • Centre for Ecology and Hydrobiology (CEH Wallingford)

Details

Original languageEnglish
JournalBiological Invasions
Volume18
Issue number1
Pages (from-to)17-30
Number of pages14
ISSN1387-3547
Publication statusPublished - Jan-2016

Abstract

Horizon scanning for high-risk invasive non-native species (INNS) is crucial in preparing and
implementing measures to prevent introductions, as well as to focus efforts in the control of species already present. We initiated a trans-national horizon-scanning exercise focused on four countries in western Europe: Great Britain, France, Belgium and The Netherlands, which share similar environmental and socio-economic characteristics. We followed a structured four-step approach combining existing knowledge about INNS, with a collaborative identification of priorities for research and management: (1) systematic review of potential INNS of concern, (2)
discrimination of INNS into an Alert and Black List depending on their absence or presence in the study area respectively, (3) risk analysis of the Alert List, and (4) expert ranking of species in the Black List. Amongst species not yet present in the four countries (i.e. Alert List), assessors reliably pointed to the Emerald ash-borer (Agrilus planipennis) and Sosnowski’s hogweed (Heracleum sosnowskyi) as those INNS with the highest risk of invasion and impact. The Japanese knotweed (Fallopia japonica), Himalayan balsam (Impatiens glandulifera), zebra mussel (Dreissena polymorpha) and killer shrimp (Dikerogammarus villosus) were consistently highlighted
as some of the most problematic INNS already
present in the study area (i.e. Black List). The
advantages of our combined approach include that it
is inclusive of all-taxa, prioritizes both established and
emerging biological threats across trans-national
scales, and considers not only the ecological impact,
but also potential direct economic consequences as
well as the manageability of invasive species.

Free keywords

  • horizon scanning, invasive alien species, invasive species, Prioritisation, black list, alert list
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