Population structure and dispersal of the freshwater mosquitoes Culex annulirostris and Culex palpalis (Diptera: Culicidae) in Papua New Guinea and Northern Australia

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Title Population structure and dispersal of the freshwater mosquitoes Culex annulirostris and Culex palpalis (Diptera: Culicidae) in Papua New Guinea and Northern Australia
Author Chapman, Heather Faye; Hughes, Jane; Ritchie, S.A.; Kay, B.H.
Journal Name Journal of Medical Entomology
Editor John Edman, William K Reisen
Year Published 2003
Place of publication United States
Publisher Entomological Society of America
Abstract In 1995 and 1998, outbreaks of Japanese encephalitis (JE) virus occurred for the first time in Australia. Virus isolation from pools of mosquitoes indicated Culex annulirostris Skuse was the most likely vector. It was hypothesized that wind-blown mosquitoes introduced JE from Papua New Guinea to the Torres Strait and Cape York, northern Australia. This study used levels of genetic differentiation, as indirect evidence of dispersal of mosquitoes between the two continents. The results have demonstrated that in the region incorporating Western Province in PNG, the Torres Strait and Cape York Peninsula, Cx. annulirostris is represented by a panmictic population, indicating frequent widespread dispersal throughout the region of investigation. The closely related Cx. Palpalis Taylor was also present at some locations but the population structure of this species is uncertain. This supports the hypothesis that wind-blown Cx. annulirostris and possibly Cx. Palpalis could be a possible mechanism for introduction of JE virus into Australia.
Peer Reviewed Yes
Published Yes
Publisher URI http://www.bioone.org/action/showPublisher?code=esaa
Alternative URI http://www.bioone.org/doi/abs/10.1603/0022-2585%282003%29040%5B0165%3APSADOT%5D2.0.CO%3B2
Volume 40
Issue Number 2
Page from 165
Page to 169
ISSN 0022-2585
Date Accessioned 2004-03-26
Date Available 2010-07-08T08:07:22Z
Language en_AU
Research Centre Australian Rivers Institute; Griffith Centre for Coastal Management
Faculty Faculty of Environmental Sciences
Subject PRE2009-Science & Technology
URI http://hdl.handle.net/10072/6005
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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