The effects of simulated rainfall on immature population dynamics of Aedes albopictus and female oviposition

Sazaly, A.B.; Dieng, H.; Rahman, G.M.S.; Abu Hassan, A.; Che Salmah, M.R; MR Satho, T.; Miake, F.; Boots, M. (2012) The effects of simulated rainfall on immature population dynamics of Aedes albopictus and female oviposition. International Journal of Biometeorology, 56 (1).

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    Larvae of Aedes albopictus Skuse typically inhabit natural and artificial containers. Since these larval habitats are replenished by rainfall, Ae. albopictus may experience increased loss of immature stages in areas with high levels of rainfall. In this study, we investigated the effects of rainfall and container water level on population density, and oviposition activity of Ae. albopictus. In field and laboratory experiments, we found that rainfall resulted in the flushing of breeding habitats. Excess rain negatively impacted larval and pupal retention, especially in small habitats. When filled with water to overflowing, container habitats were significantly repellent to ovipositing females. Taken together, these data suggest that rainfall triggers population loss of Ae. albopictus and related species through a direct detrimental effect (flushing out) and an indirect effect (ovipositional repellency).

    Item Type: Article
    1. Sazaly, A.B.(Department of Medical Microbiology, Faculty of Medicine Building, University of Malaya, 50603 Kuala Lumpur, Malaysia)
    2. Dieng, H.
    3. Rahman, G.M.S.
    4. Abu Hassan, A.
    5. Che Salmah, M.R
    6. MR Satho, T.
    7. Miake, F.
    8. Boots, M.
    Journal or Publication Title: International Journal of Biometeorology
    Additional Information: A. Sazaly Department of Medical Microbiology, University of Malaya, Kuala Lumpur, Malaysia
    Uncontrolled Keywords: Aedes albopictus; Container; Rainfall; Population loss; Repellency
    Subjects: R Medicine
    Divisions: Faculty of Medicine
    Depositing User: Miss Malisa Diana
    Date Deposited: 08 Nov 2012 09:33
    Last Modified: 11 Dec 2013 15:06

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