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How can alien species inventories and interception data help us prevent insect invasions?

M Kenis1, W Rabitsch, M-A Auger-Rozenberg

  • 1CABI Bioscience Centre, 1 Rue des Grillons, 2800, Delémont, Switzerland. m.kenis@cabi.org

Bulletin of Entomological Research
|October 6, 2007
PubMed
Summary
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Invasive alien insects in Central Europe primarily originate from North America and Asia, often arriving via ornamental plant trade. Most established species impact economies, with few known ecological effects.

Area of Science:

  • Ecology
  • Entomology
  • Conservation Biology

Background:

  • Invasive alien insects pose significant threats to ecosystems and economies.
  • Understanding introduction pathways and establishment patterns is crucial for effective management.

Purpose of the Study:

  • To analyze the origin, pathways, and characteristics of invasive alien insects in Central Europe.
  • To assess the economic and ecological impacts of these species.

Main Methods:

  • Data were extracted from inventories of alien insects in Austria and Switzerland.
  • Interception data from the European and Mediterranean Plant Protection Organisation (EPPO) (1995-2004) were analyzed.
  • Insect origins, feeding guilds, habitats, and impacts were characterized.

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Main Results:

  • Major origins include North America and Asia, with introductions often linked to ornamental plant trade.
  • Sternorrhyncha, Coleoptera, and Psocoptera were dominant alien groups; sap feeders and detritivores were common.
  • Nearly 40% of alien insects were indoor inhabitants; 40% had documented economic impacts, but no ecological impacts were recorded.

Conclusions:

  • Ornamental plant trade is a key pathway for invasive alien insects in Europe.
  • Management strategies should consider the specific origins, habitats, and feeding guilds of alien insects.
  • Further research is needed to understand and mitigate the economic impacts of invasive alien insects.