The ongoing Asian hornet invasion: Traced back to a single source in Europe In Europe, the Asian (or “Yellow-legged”) Hornet (Vespa velutina) is a predator of insects such as honeybees, hoverflies, and other wasps, and poses serious risks to apiculture, biodiversity, and pollination services. This
The ongoing Asian hornet invasion: Traced back to a single source in Europe
Thought to have been introduced into Europe from China in 2004, the Asian Hornet has rapidly spread across the continent. While it has been thus far controlled in Britain, the hornet is well established across mainland Europe and the Channel Islands. In April 2021, the Irish National Parks and Wildlife Service confirmed that a single specimen had been found, ‘alive but dying’ in a private dwelling in Dublin, marking the first Irish record of this species.
The specimen was deposited in the National Museum of Ireland and identified by Dr. Aidan O’Hanlon, who suggested performing genetic analysis to determine its provenance. In collaboration with scientists from the School of Biological, Earth and Environmental Sciences , University College Cork, and partners on the EU Atlantic Positive Project , genetic analysis was performed and data were compared with those from specimens provided from several other locations across Europe.
“Our research has revealed the remarkable potential for population expansion of eusocial insects in invaded areas, even when original genetic diversity is extremely low,” says Dr. Simon Harrison, who is part of the research team.
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