Evidence for regular ongoing introductions of mosquito disease vectors into the Galapagos Islands

Bataille Arnaud, Cunningham Andrew A., Cedeño Virna, Cruz Marilyn, Eastwood Gillian, Fonseca Dina M., Causton Charlotte E., Azuero Ronal, Loayza Jose, Cruz Martinez Jose D., Goodman Simon J.. 2009. Evidence for regular ongoing introductions of mosquito disease vectors into the Galapagos Islands. Proceedings of the Royal Society B: Biological Sciences, 276 (1674) : 3769-3775.

Quartile : Q1, Sujet : ECOLOGY / Quartile : Q1, Sujet : BIOLOGY / Quartile : Q1, Sujet : EVOLUTIONARY BIOLOGY

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Résumé : Wildlife on isolated oceanic islands is highly susceptible to the introduction of pathogens. The recent establishment in the Galápagos Islands of the mosquito Culex quinquefasciatus, a vector for diseases such as avian malaria and West Nile fever, is considered a serious risk factor for the archipelago's endemic fauna. Here we present evidence from the monitoring of aeroplanes and genetic analysis that C. quinquefasciatus is regularly introduced via aircraft into the Galápagos Archipelago. Genetic population structure and admixture analysis demonstrates that these mosquitoes breed with, and integrate successfully into, already-established populations of C. quinquefasciatus in the Galápagos, and that there is ongoing movement of mosquitoes between islands. Tourist cruise boats and inter-island boat services are the most likely mechanism for transporting Culex mosquitoes between islands. Such anthropogenic mosquito movements increase the risk of the introduction of mosquito-borne diseases novel to Galápagos and their subsequent widespread dissemination across the archipelago. Failure to implement and maintain measures to prevent the human-assisted transport of mosquitoes to and among the islands could have catastrophic consequences for the endemic wildlife of Galápagos.

Classification Agris : L72 - Organismes nuisibles des animaux
L73 - Maladies des animaux
U30 - Méthodes de recherche

Champ stratégique Cirad : Axe 4 (2005-2013) - Santé animale et maladies émergentes

Auteurs et affiliations

• Bataille Arnaud, University of Leeds (GBR)
• Cunningham Andrew A., Zoological Society of London (GBR)
• Cedeño Virna, Universidad de Guayaquil (ECU)
• Cruz Marilyn, Universidad de Guayaquil (ECU)
• Eastwood Gillian, University of Leeds (GBR)
• Fonseca Dina M., Rutgers University (USA)
• Causton Charlotte E., Charles Darwin Research Station (ECU)
• Azuero Ronal, Charles Darwin Research Station (ECU)
• Loayza Jose, Charles Darwin Research Station (ECU)
• Cruz Martinez Jose D., Charles Darwin Research Station (ECU)
• Goodman Simon J., University of Leeds (GBR)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/578215/)

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