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Sci Rep. 2017 Oct 24;7(1):14399. doi: 10.1038/s41598-017-12652-5.

Direct Evidence of Adult Aedes albopictus Dispersal by Car.

Author information

1
CREAF, Cerdanyola del Vallès, Spain. reritja@elbaixllobregat.cat.
2
Servei de Control de Mosquits del Consell Comarcal del Baix Llobregat, Sant Feliu de Llobregat, Spain. reritja@elbaixllobregat.cat.
3
CREAF, Cerdanyola del Vallès, Spain.
4
Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Girona, Spain.
5
Universitat Pompeu Fabra, Barcelona, Spain.
6
MIVEGEC (Infectious Diseases and Vectors: Ecology, Genetics, Evolution and Control), Institut de Recherche pour le Développement (IRD), Montpellier, France.
7
Servei de Control de Mosquits del Consell Comarcal del Baix Llobregat, Sant Feliu de Llobregat, Spain.
8
CREAF, Cerdanyola del Vallès, Spain. fbartu@ceab.csic.es.
9
Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Girona, Spain. fbartu@ceab.csic.es.
10
ICREA, Institut Català de Recerca i Estudis Avançats, Barcelona, Spain. fbartu@ceab.csic.es.

Abstract

Whereas the Asian tiger mosquito (Aedes albopictus) has low active dispersal capabilities, its worldwide colonization has been rapid. Indirect evidence and informal reports have long implicated passive transportation in cars, but this has not previously been studied systematically given the difficulties of real-time roadside surveys. Here we report the first sampling study confirming that adult tiger mosquitoes travel with humans in cars and enabling us to estimate the frequency of these events. We combine the results with citizen science data to model the car-facilitated dispersal of Aedes albopictus at a nationwide level. During the summer of 2015, we sampled 770 cars in north-eastern Spain, discovering 4 adult female tiger mosquitoes that had entered cars prior to sampling. Our Bayesian model suggests that of the 6.5 million daily car trips in the Barcelona metropolitan area, between 13,000 and 71,500 facilitate tiger mosquito movement, and that Barcelona is the largest source of inter-province tiger mosquito transfers in Spain. Our results are supported by expert-validated citizen science data, and will contribute to better understanding the tiger mosquito's invasion process and ultimately lead to more effective vector control strategies.

PMID:
29070818
PMCID:
PMC5656642
DOI:
10.1038/s41598-017-12652-5
[Indexed for MEDLINE]
Free PMC Article

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