Surveillance of invasive Aedes mosquitoes along Swiss traffic axes reveals different dispersal modes for Aedes albopictus and Ae. japonicus

Autor: Müller, P., Engeler, L., Vavassori, L., Suter, T., Guidi, V., Gschwind, M., Tonolla, M., Flacio, E.
Rok vydání: 2020
Předmět:
Mosquito Control
Physiology
Oviposition
Eggs
RC955-962
Invasive Species
Transportation
Disease Vectors
Mosquitoes
Mass Spectrometry
Analytical Chemistry
Geographical Locations
Medical Conditions
Spectrum Analysis Techniques
Aedes
Reproductive Physiology
Arctic medicine. Tropical medicine
Medicine and Health Sciences
Matrix-Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry
Eukaryota
Transportation Infrastructure
Europe
Insects
Chemistry
Infectious Diseases
Italy
Epidemiological Monitoring
Physical Sciences
Engineering and Technology
Female
Public aspects of medicine
RA1-1270
Switzerland
Research Article
Arthropoda
Highways
Mosquito Vectors
Aedes Aegypti
Research and Analysis Methods
Civil Engineering
Species Colonization
Animals
Ecology and Environmental Sciences
Organisms
Biology and Life Sciences
Zika Virus
Invertebrates
Insect Vectors
Roads
Species Interactions
People and Places
Introduced Species
Zoology
Entomology
Zdroj: PLoS Neglected Tropical Diseases, Vol 14, Iss 9, p e0008705 (2020)
PLoS Neglected Tropical Diseases
DOI: 10.5451/unibas-ep91197
Popis: Over the past three decades, Europe has witnessed an increased spread of invasive aedine mosquito species, most notably Aedes albopictus, a key vector of chikungunya, dengue and Zika virus. While its distribution in southern Europe is well documented, its dispersal modes across the Alps remain poorly investigated, preventing a projection of future scenarios beyond its current range in order to target mosquito control. To monitor the presence and frequency of invasive Aedes mosquitoes across and beyond the Alps we set oviposition and BG-Sentinel traps at potential points of entry with a focus on motorway service areas across Switzerland. We placed the traps from June to September and controlled them for the presence of mosquitoes every other week between 2013 and 2018. Over the six years of surveillance we identified three invasive Aedes species, including Ae. albopictus, Ae. japonicus and Ae. koreicus. Based on the frequency and distribution patterns we conclude that Ae. albopictus and Ae. koreicus are being passively spread primarily along the European route E35 from Italy to Germany, crossing the Alps, while Ae. japonicus has been expanding its range from northern Switzerland across the country most likely through active dispersal.
Author summary Because of global trade of used tyres and ornamental plants, invasive mosquitoes of the genus Aedes are spreading passively between continents. Within continents, adults are frequently travelling along roads as hitchhikers in motorised vehicles and may then colonise new areas. Because some Aedes mosquitoes are competent to transmit diseases they threaten public and veterinary health. In Europe, the Asian tiger mosquito, Aedes albopictus is of particular concern as it is a vector of chikungunya, dengue and Zika virus. While its distribution in southern Europe is well documented, its dispersal modes across the Alps remain poorly investigated, preventing a projection of future scenarios beyond its current range in order to target mosquito control. To monitor the introduction of invasive Aedes mosquitoes beyond the Alps we placed traps at motorway service areas across Switzerland. Between 2013 and 2018 we identified three invasive Aedes species, including Ae. albopictus, Ae. koreicus (Korean bush mosquito) and Ae. japonicus (Japanese bush mosquito). Based on the frequency and distribution patterns we conclude that Ae. albopictus and Ae. koreicus are being passively spread primarily along the European route E35 from Italy to Germany, while Ae. japonicus has been expanding its range across Switzerland mainly through active dispersal.
Databáze: OpenAIRE
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