scholarly journals Elevational Distribution of the Asian Tiger Mosquito, Aedes albopictus, in the Inland Mountain Area of Nagano and Yamanashi Prefectures, Japan

2020 ◽  
Vol 36 (1) ◽  
pp. 1-10
Author(s):  
Kimio Hirabayashi ◽  
Naoko Nihei ◽  
Mutsuo Kobayashi ◽  
Yoshio Tsuda ◽  
Kyoko Sawabe
Keyword(s):  
Infectious Disease ◽  
Aedes Albopictus ◽  
Air Temperature ◽  
Asian Tiger Mosquito ◽  
Mountain Area ◽  
Asian Tiger ◽  
Elevational Distribution ◽  
Control And Prevention ◽  
North And South ◽  
M 14

ABSTRACT Nagano and Yamanashi prefectures of Japan comprise an inland mountain area that extends widely north and south, with elevation varying greatly by location. Mosquitoes transmitting infectious disease have a diversity of habitats in Nagano and Yamanashi, and many species can be expected there. However, there have been few reports on mosquito fauna; in particular, little information is available on mosquitoes such as Aedes albopictus. The mosquito fauna was investigated to clarify their elevational distribution ranging from 317 to 1,534 m, focusing especially on Ae. albopictus, in 24 areas in Nagano and Yamanashi prefectures from July to September in 2012–16. Adult mosquitoes were collected using the Centers for Disease Control and Prevention traps in each area, in addition to larval mosquito collections at several temple and shrine precincts in each area. At sites where elevations were >800 m (14 sites), no adult Ae. albopictus were captured. In addition, larval Ae. albopictus were not collected at elevations >728 m (15 sites). Aedes albopictus was captured at 20 other sites (annual mean air temperature ranged from 9.4 to 15.2°C, July–September mean air temperature ranged from 19.9 to 25.0°C).

scholarly journals The ‘Tiger’ on our doorstep: emergence of Aedes albopictus as an arbovirus vector in northern Australia

2009 ◽  
Vol 30 (4) ◽  
pp. 142
Author(s):  
Andrew F van den Hurk
Keyword(s):  
Aedes Albopictus ◽  
Dirofilaria Immitis ◽  
Western Indian Ocean ◽  
Asian Tiger Mosquito ◽  
Black And White ◽  
Arbovirus Vector ◽  
Asian Tiger ◽  
Primary Vector ◽  
North And South America ◽  
North And South

Aedes albopictus is commonly referred to as the ?Asian Tiger Mosquito?, a name that describes its distinctive black and white banding and its origins in Southeast Asian rainforests. This highly invasive species is a competent vector of dengue viruses (DENVs) and was the primary vector during the recent resurgence of chikungunya virus (CHIKV) in the islands of the western Indian Ocean. Ae. albopictus is also a vicious biter and can transmit dog heartworm, Dirofilaria immitis, between dogs. In the last 30 years, it has colonised many parts of Europe, North and South America and Africa. Until recently, Australia had been spared infestation by Ae. albopictus. However, widespread populations were discovered in the Torres Strait in 2005 and genetic analysis suggested that it had been repeatedly introduced from the New Guinea landmass [N.W. Beebe, L.A. Hill and A.F. van den Hurk, unpublished data]. Should Ae. albopictus become established on the mainland, it has the potential to colonise much of coastal Australia, including southern areas, thus rendering them receptive to possible DENV and CHIKV transmission.

scholarly journals Wolbachia strain wAu efficiently blocks arbovirus transmission in Aedes albopictus

2019 ◽  
Author(s):  
Maria Vittoria Mancini ◽  
Christie S. Herd ◽  
Thomas H. Ant ◽  
Shivan M. Murdochy ◽  
Steven P. Sinkins
Keyword(s):  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
Mosquito Species ◽  
Field Trials ◽  
Asian Tiger Mosquito ◽  
Native Strain ◽  
Promising Tool ◽  
Novel Approach ◽  
Asian Tiger ◽  
Tiger Mosquito

AbstractThe global incidence of arboviral diseases transmitted by Aedes mosquitoes, including dengue, chikungunya, yellow fever, and Zika, has increased dramatically in recent decades. The release of Aedes aegypti carrying the maternally inherited symbiont Wolbachia as an intervention to control arboviruses is being trialled in several countries. However, these efforts are compromised in many endemic regions due to the co-localization of the secondary vector Aedes albopictus, the Asian tiger mosquito. Ae. albopictus has an expanding global distribution following incursions into a number of new territories. To date, only the wMel and wPip strains of Wolbachia have been reported to be transferred into and characterized in this vector. A Wolbachia strain naturally infecting Drosophila simulans, wAu, was selected for transfer into a Malaysian Ae. albopictus line to create a novel triple-strain infection. The newly generated line showed self-compatibility, moderate fitness cost and complete resistance to Zika and dengue infections.Author summaryAedes albopictus, the invasive Asian tiger mosquito, is responsible for numerous outbreaks of important viruses such as dengue and Zika in various regions of the world. The need for alterative control interventions propelled the development of a novel approach that exploits a natural insect symbiont, Wolbachia; when transferred into non-native hosts, these maternally-inherited bacteria are able to interfere with the transmission of mosquito-borne viruses, and also provide reproductive advantages to the host, offering a promising tool for self-sustaining field applications. Currently, several field trials are ongoing for the primary vector of dengue and several other arboviruses, Aedes aegypti, providing encouraging results. In this study, Ae. albopictus has been targeted for a similar approach: this mosquito species naturally carries two strains of Wolbachia. The artificial introduction of a third, non-native strain made this line less able to transmit dengue and Zika viruses and had an impact on its fitness.

scholarly journals Incursion pathways of the Asian tiger mosquito (Aedes albopictus) into Australia contrast sharply with those of the yellow fever mosquito (Aedes aegypti)

2020 ◽  
Author(s):  
Thomas L Schmidt ◽  
Jessica Chung ◽  
Anthony R. van Rooyen ◽  
Angus Sly ◽  
Andrew R Weeks ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Aedes Albopictus ◽  
Species Differences ◽  
Invasive Disease ◽  
Disease Vectors ◽  
Pacific Region ◽  
Control Methods ◽  
Asian Tiger Mosquito ◽  
Control Programs ◽  
Asian Tiger

AbstractBACKGROUNDUnderstanding pest incursion pathways is critical for preventing new invasions and for stopping the transfer of alleles that reduce the efficacy of local control methods. The mosquitoes Aedes albopictus (Skuse) and Ae. aegypti (Linnaeus) are both highly invasive disease vectors, and through a series of ongoing international incursions are continuing to colonise new regions and spread insecticide resistance alleles among established populations. This study uses high-resolution molecular markers and a set of 241 reference genotypes to trace incursion pathways of Ae. albopictus into mainland Australia, where no successful invasions have yet been observed. We contrast these results with incursion pathways of Ae. aegypti, investigated previously.RESULTSAssignments successful identified China, Japan, Singapore and Taiwan as source locations. Incursion pathways of Ae. albopictus were entirely different to those of Ae. aegypti, despite broad sympatry of these species throughout the Indo-Pacific region. Incursions of Ae. albopictus appeared to have come predominantly along marine routes from key trading locations, while Ae. aegypti was mostly linked to aerial routes from tourism hotspots.CONCLUSIONThese results demonstrate how genomics can help decipher otherwise cryptic incursion pathways. The inclusion of reference genotypes from the Americas may help resolve some unsuccessful assignments. While many congeneric taxa will share common incursion pathways, this study highlights that this is not always the case, and incursion pathways of important taxa should be specifically investigated. Species differences in aerial and marine incursion rates may reflect the efficacy of ongoing control programs such as aircraft disinsection.

Practical management plan for invasive mosquito species in Europe: I. Asian tiger mosquito (Aedes albopictus)

2020 ◽  
Vol 35 ◽  
pp. 101691 ◽  
Author(s):  
Romeo Bellini ◽  
Antonios Michaelakis ◽  
Dušan Petrić ◽  
Francis Schaffner ◽  
Bulent Alten ◽  
...  
Keyword(s):  
Aedes Albopictus ◽  
Mosquito Species ◽  
Management Plan ◽  
Asian Tiger Mosquito ◽  
Invasive Mosquito Species ◽  
Practical Management ◽  
Asian Tiger ◽  
Invasive Mosquito ◽  
Tiger Mosquito

Yellow-g and Yellow-g2 proteins are required for egg desiccation resistance and temporal pigmentation in the Asian tiger mosquito, Aedes albopictus

2020 ◽  
Vol 122 ◽  
pp. 103386 ◽  
Author(s):  
Mi Young Noh ◽  
Sung Hyun Kim ◽  
Maureen J. Gorman ◽  
Karl J. Kramer ◽  
Subbaratnam Muthukrishnan ◽  
...  
Keyword(s):  
Aedes Albopictus ◽  
Desiccation Resistance ◽  
Asian Tiger Mosquito ◽  
Asian Tiger ◽  
Tiger Mosquito
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