Collection of wind-borne haematophagous insects in the Torres Strait, Australia

Johansen, C. A., Farrow, R. A., Morrisen, A., Foley, P., Bellis, G., Van Den Hurk, A. F., Montgomery, B., Mackenzie, J. S. and Ritchie, S. A. (2003) Collection of wind-borne haematophagous insects in the Torres Strait, Australia. Medical and Veterinary Entomology, 17 1: 102-109. doi:10.1046/j.1365-2915.2003.00413.x


Author Johansen, C. A.
Farrow, R. A.
Morrisen, A.
Foley, P.
Bellis, G.
Van Den Hurk, A. F.
Montgomery, B.
Mackenzie, J. S.
Ritchie, S. A.
Title Collection of wind-borne haematophagous insects in the Torres Strait, Australia
Journal name Medical and Veterinary Entomology   Check publisher's open access policy
ISSN 0269-283X
1365-2915
Publication date 2003-03
Sub-type Article (original research)
DOI 10.1046/j.1365-2915.2003.00413.x
Volume 17
Issue 1
Start page 102
End page 109
Total pages 8
Place of publication Oxford, U.K.
Publisher Blackwell Scientific
Collection year 2003
Language eng
Subject C1
270504 Invertebrate Biology
270303 Virology
730212 Disease distribution and transmission
770199 Other
780105 Biological sciences
Formatted abstract
Circumstantial evidence has implicated wind-borne mosquitoes (Diptera: Culicidae) in the introduction of Japanese encephalitis (JE) virus into Australia from the New Guinea mainland. A study was initiated on Saibai Island in the northern Torres Strait, during January and February 2000, to identify the potential source of insects collected in aerial (kytoon) and surface-level traps. Wind speed and direction were recorded to determine wind profiles during insect sampling. Northerly winds capable of carrying insects from New Guinea to Saibai Island were only present on three out of 18 nights sampled. Only three male mosquitoes, comprising two Verrallina funerea (Theobald) and one Ochlerotatus vigilax (Skuse), were collected in aerial samples, and were most likely of local origin. Culicoides midges were also collected in aerial nets and included gravid/parous C. bundyensis Lee and Reye, and one parous C. histrio Johannsen. Highest densities of arthropods (up to 1562/million m(3)) were on 30 January 2000 when NW winds, sustained for six hours, probably introduced midges from the New Guinea mainland. Adult mosquitoes (including three female Ve. funerea and a single female Ficalbia) and Culicoides (including two gravid C. bundyensis and one parous C. cordiger Macfie) were also collected in 2 m high mast nets during northerly surface winds. Although the results do not provide evidence that wind-blown mosquitoes introduced JE from New Guinea into Australia, they do not preclude that strong N winds associated with low pressure systems SW of the Torres Strait could have done so. However, results suggest that Culicoides were more likely than mosquitoes to reach high altitude and travel long distances during the light N winds experienced during the study.
© 2003 The Royal Entomological Society
Keyword Entomology
Veterinary Sciences
Culicoides
Ochlerotatus vigilax
Verrallina funerea
Arbovirus
Bluetongue
Insect migration
Japanese encephalitis
Meteorology
Mosquito
Wind-borne insects
Australia
Papua New Guinea
Japanese encephalitis-virus
Northeast India
Diptera
Ceratopogonidae
Migration
Mosquitos
Diseases
Outbreak
Weather
Region
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: Faculty of Science Publications
Excellence in Research Australia (ERA) - Collection
2004 Higher Education Research Data Collection
 
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Created: Tue, 14 Aug 2007, 19:38:48 EST