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Title

Worldwide Niche and Future Potential Distribution of Culicoides imicola, a Major Vector of Bluetongue and African Horse Sickness Viruses

Publication Year

2014

Author(s)
  • Guichard, Sylvain
  • Guis, Helene
  • Tran, Annelise
  • Garros, Claire
  • Balenghien, Thomas
  • Kriticos, Darren J.
Source
PLOS ONE Volume: 9 Issue: 11 Article Number: e112491 Published: 2014
ISSN
1932-6203
Abstract

We modelled the ecoclimatic niche of Culicoides imicola, a major arthropod vector of midge-borne viral pathogens affecting ruminants and equids, at fine scale and on a global extent, so as to provide insight into current and future risks of disease epizootics, and increase current knowledge of the species' ecology. Based on the known distribution and ecology of C. imicola, the species' response to monthly climatic conditions was characterised using CLIMEX with 109 spatial resolution climatic datasets. The species' climatic niche was projected worldwide and under future climatic scenarios. The validated model highlights the role of irrigation in supporting the occurrence of C. imicola in arid regions. In Europe, the modelled potential distribution of C. imicola extended further West than its reported distribution, raising questions regarding ongoing process of colonization and non-climatic habitat factors. The CLIMEX model highlighted similar ecological niches for C. imicola and the Australasian C. brevitarsis raising questions on biogeography and biosecurity. Under the climate change scenarios considered, its' modelled potential distribution could expand northward in the Northern hemisphere, whereas in Africa its range may contract in the future. The biosecurity risks from bluetongue and African horse sickness viruses need to be re-evaluated in regions where the vector's niche is suitable. Under a warmer climate, the risk of vector-borne epizootic pathogens such as bluetongue and African horse sickness viruses are likely to increase as the climate suitability for C. imicola shifts poleward, especially in Western Europe.

Author Keyword(s)
    KeyWord(s) Plus
    • CLIMATE-CHANGE
    • BITING MIDGES
    • DIPTERA-CERATOPOGONIDAE
    • PHYLOGENETIC ANALYSIS
    • SATELLITE IMAGERY
    • EUROPE
    • TEMPERATURE
    • AUSTRALIA
    • MODELS
    • MAP
    ESI Discipline(s)
    • Multidisciplinary
    Web of Science Category(ies)
    • Multidisciplinary Sciences
    Adress(es)

    [Guichard, Sylvain; Tran, Annelise] Cirad, UR AGIRs, F-34398 Montpellier, France; [Guichard, Sylvain; Kriticos, Darren J.] Univ Minnesota, InSTePP, St Paul, MN 55108 USA; [Guis, Helene; Garros, Claire; Balenghien, Thomas] Cirad, UMR CMAEE, F-34398 Montpellier, France; [Guis, Helene; Garros, Claire; Balenghien, Thomas] INRA, CMAEE UMR1309, F-34398 Montpellier, France; [Tran, Annelise] Cirad, TETIS UMR15, F-34398 Montpellier, France; [Kriticos, Darren J.] CSIRO, Agr Flagship & Biosecur Flagship, Canberra, ACT 2601, Australia

    Reprint Adress

    Kriticos, DJ (reprint author), Univ Minnesota, InSTePP, St Paul, MN 55108 USA.

    Country(ies)
    • Australia
    • France
    • United States
    CNRS - Adress(es)
      Accession Number
      WOS:000349144400088
      uid:/RQZF11T7
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