Range expansion of the Bluetongue vector, Culicoides imicola, in continental France likely due to rare wind-transport events

Stéphanie Jacquet, Karine Huber, Nonito Pagès, Sandra Talavera, Laura E. Burgin, Simon Carpenter, Christopher Sanders, Ahmadou H. Dicko, Mouloud Djerbal, Maria Goffredo, Youssef Lhor, Javier Lucientes, Miguel A. Miranda-Chueca, Isabel Pereira Da Fonseca, David W. Ramilo, Marie Laure Setier-Rio, Jérémy Bouyer, Christine Chevillon, Thomas Balenghien, Hélène GuisClaire Garros

    Research output: Contribution to journalArticleResearchpeer-review

    16 Citations (Scopus)

    Abstract

    The role of the northward expansion of Culicoides imicola Kieffer in recent and unprecedented outbreaks of Culicoides-borne arboviruses in southern Europe has been a significant point of contention. We combined entomological surveys, movement simulations of air-borne particles, and population genetics to reconstruct the chain of events that led to a newly colonized French area nestled at the northern foot of the Pyrenees. Simulating the movement of air-borne particles evidenced frequent wind-transport events allowing, within at most 36 hours, the immigration of midges from north-eastern Spain and Balearic Islands, and, as rare events, their immigration from Corsica. Completing the puzzle, population genetic analyses discriminated Corsica as the origin of the new population and identified two successive colonization events within west-Mediterranean basin. Our findings are of considerable importance when trying to understand the invasion of new territories by expanding species.
    Original languageEnglish
    Article number27247
    JournalScientific Reports
    Volume6
    DOIs
    Publication statusPublished - 6 Jun 2016

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