Assessing diversity and abundance of vector populations at a national scale: example of Culicoides surveillance in France after Bluetongue Virus emergence

Venail Roger, Balenghien Thomas, Guis Hélène, Tran Annelise, Setier-Rio Marie-Laure, Delecolle Jean Claude, Mathieu Bernard, Cetre-Sossah Catherine, Martinez Dominique, Languille Jérôme, Baldet Thierry, Garros Claire. 2012. Assessing diversity and abundance of vector populations at a national scale: example of Culicoides surveillance in France after Bluetongue Virus emergence. In : E-sove 2012 : from biology to integrated control in a changing world. Abstract book. European Society for Vector Ecology, CIRAD, EID, IRD. Montpellier : European Society for Vector Ecology, Résumé, p. 24. Conférence E-SOVE. 18, Montpellier, France, 8 October 2012/11 October 2012.

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Abstract : Biting midges of the genus Culicoides (Diptera: Ceratopogonidae) are small hematophagous dipterans responsible for transmitting major viruses to livestock such as African horse sickness virus in equids, and pizootic haemorrhagic disease and bluetongue viruses (BTV) in ruminants. Between 1998 and 2005, BTV outbreaks occurred into many countries around the Mediterranean basin associated with the northward extension of C. imicola, which colonized new Mediterranean territories in the past decades due to the global increase of temperatures. In August 2006, BTV serotype 8 (BTV-8) was unexpectedly introduced in the Netherlands and was intensively transmitted by autochthonous Palaearctic Culicoides species, leading in 2007 and 2008 to a major sanitary crisis in whole continental Europe with huge economic losses due to animal movement restrictions. This chapter presents a synthesis of the data gathered through the different entomological surveillance networks implemented in France since 2000 when C. imicola was recorded for the first time in France. These networks aimed at first to monitor the spread and establishment of the invasive C. imicola and then from 2006 onwards, to study the diversity and dynamics of autochthonous Culicoides species. The data collected enable to describe for the first time the spread of C. imicola into French mainland, propose an updated list of Culicoides species for France, describe the Culicoides species distribution and seasonal dynamics, and report assays to identify BTV in field-collected Culicoides during outbreaks. (Texte intégral)

Classification Agris : L72 - Pests of animals
L73 - Animal diseases

Auteurs et affiliations

  • Venail Roger, EID (FRA)
  • Balenghien Thomas, CIRAD-BIOS-UMR CMAEE (FRA)
  • Tran Annelise, CIRAD-ES-UPR AGIRs (FRA) ORCID: 0000-0001-5463-332X
  • Setier-Rio Marie-Laure, EID (FRA)
  • Delecolle Jean Claude, Faculté de médecine de Strasbourg (FRA)
  • Mathieu Bernard, EID (FRA)
  • Cetre-Sossah Catherine, CIRAD-BIOS-UMR CMAEE (FRA)
  • Martinez Dominique, CIRAD-BIOS-UMR CMAEE (FRA)
  • Languille Jérôme, Ministère de l'agriculture de la pêche et de de l'alimentation (France) (FRA)
  • Baldet Thierry, CIRAD-BIOS-UMR CMAEE (FRA) ORCID: 0000-0003-2979-9517
  • Garros Claire, CIRAD-BIOS-UMR CMAEE (FRA) ORCID: 0000-0003-4378-5031

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