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The Effects Of Moisture On Ovipositional Responses And Larval Eclosion Of Aedes Albopictus

Moisture plays a major role in the dynamics of mosquito populations, especially those breeding in container habitats. Despite this importance, the role of moisture conditions as they affect oviposition and egg development in Aedes vectors remains largely unexplored. We investigated the effect of...

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Main Authors: G. M. Saiful, Rahman, Hamady, Dieng, Ahmad, Abu Hassan, Tomomitsu, Satho
Format: Article
Language:English
Published: The American Mosquito Control Association 2010
Subjects:
QL Zoology
QR Microbiology
Online Access:http://ir.unimas.my/id/eprint/9591/7/THE%20EFFECTS.pdf
http://ir.unimas.my/id/eprint/9591/
http://www.bioone.org/doi/full/10.2987/10-6003.1
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spelling my.unimas.ir.95912023-08-14T02:59:11Z http://ir.unimas.my/id/eprint/9591/ The Effects Of Moisture On Ovipositional Responses And Larval Eclosion Of Aedes Albopictus G. M. Saiful, Rahman Hamady, Dieng Ahmad, Abu Hassan Tomomitsu, Satho QL Zoology QR Microbiology Moisture plays a major role in the dynamics of mosquito populations, especially those breeding in container habitats. Despite this importance, the role of moisture conditions as they affect oviposition and egg development in Aedes vectors remains largely unexplored. We investigated the effect of exposing gravid female Aedes albopictus mosquitoes and their eggs to different moisture levels (MLs) for various periods on oviposition and hatching. Overall, high-moisture substrates (HMSs; 66% and 72%) provided better environments for egg laying. The timing of initial egg laying was far longer at the lowest substrate moisture level (LSML, 25% and 41.2%) than at HMSs. The numbers of eggs laid were much lower in the drier environments. At LSMLs, gravid females retained increasing numbers of mature eggs until death, and egg retention decreased gradually with increasing ML. The HMSs also provided better environments for larval eclosion. The numbers of eggs hatched were lower at the LSML than the HSML environment. No egg hatching occurred after 1 h exposure to moisture. However, egg hatching occurred by installment, with spontaneous hatching (SH) increasing gradually with increasing ML. High-moisture conditions combined with long exposure (30 h and 48 h) favored SH. These results suggest that Ae. albopictus females can respond to better moisture conditions for increased success of embryonation and larval eclosion. This information may be useful in the colonization of floodwater Aedes species. The American Mosquito Control Association 2010 Article NonPeerReviewed text en http://ir.unimas.my/id/eprint/9591/7/THE%20EFFECTS.pdf G. M. Saiful, Rahman and Hamady, Dieng and Ahmad, Abu Hassan and Tomomitsu, Satho (2010) The Effects Of Moisture On Ovipositional Responses And Larval Eclosion Of Aedes Albopictus. Journal of the American Mosquito Control Association, 26 (4). pp. 373-380. ISSN 1943-6270 http://www.bioone.org/doi/full/10.2987/10-6003.1 DOI: 10.2987/10-6003.1
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic QL Zoology
QR Microbiology
spellingShingle QL Zoology
QR Microbiology
G. M. Saiful, Rahman
Hamady, Dieng
Ahmad, Abu Hassan
Tomomitsu, Satho
The Effects Of Moisture On Ovipositional Responses And Larval Eclosion Of Aedes Albopictus
description Moisture plays a major role in the dynamics of mosquito populations, especially those breeding in container habitats. Despite this importance, the role of moisture conditions as they affect oviposition and egg development in Aedes vectors remains largely unexplored. We investigated the effect of exposing gravid female Aedes albopictus mosquitoes and their eggs to different moisture levels (MLs) for various periods on oviposition and hatching. Overall, high-moisture substrates (HMSs; 66% and 72%) provided better environments for egg laying. The timing of initial egg laying was far longer at the lowest substrate moisture level (LSML, 25% and 41.2%) than at HMSs. The numbers of eggs laid were much lower in the drier environments. At LSMLs, gravid females retained increasing numbers of mature eggs until death, and egg retention decreased gradually with increasing ML. The HMSs also provided better environments for larval eclosion. The numbers of eggs hatched were lower at the LSML than the HSML environment. No egg hatching occurred after 1 h exposure to moisture. However, egg hatching occurred by installment, with spontaneous hatching (SH) increasing gradually with increasing ML. High-moisture conditions combined with long exposure (30 h and 48 h) favored SH. These results suggest that Ae. albopictus females can respond to better moisture conditions for increased success of embryonation and larval eclosion. This information may be useful in the colonization of floodwater Aedes species.
format Article
author G. M. Saiful, Rahman
Hamady, Dieng
Ahmad, Abu Hassan
Tomomitsu, Satho
author_facet G. M. Saiful, Rahman
Hamady, Dieng
Ahmad, Abu Hassan
Tomomitsu, Satho
author_sort G. M. Saiful, Rahman
title The Effects Of Moisture On Ovipositional Responses And Larval Eclosion Of Aedes Albopictus
title_short The Effects Of Moisture On Ovipositional Responses And Larval Eclosion Of Aedes Albopictus
title_full The Effects Of Moisture On Ovipositional Responses And Larval Eclosion Of Aedes Albopictus
title_fullStr The Effects Of Moisture On Ovipositional Responses And Larval Eclosion Of Aedes Albopictus
title_full_unstemmed The Effects Of Moisture On Ovipositional Responses And Larval Eclosion Of Aedes Albopictus
title_sort effects of moisture on ovipositional responses and larval eclosion of aedes albopictus
publisher The American Mosquito Control Association
publishDate 2010
url http://ir.unimas.my/id/eprint/9591/7/THE%20EFFECTS.pdf
http://ir.unimas.my/id/eprint/9591/
http://www.bioone.org/doi/full/10.2987/10-6003.1
_version_ 1775627187499565056
score 13.211869

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