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

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...

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Bibliographic Details
Published in:International journal of biometeorology 2012-01, Vol.56 (1), p.113-120
Main Authors: Dieng, Hamady, Rahman, G. M. Saifur, Abu Hassan, A., Che Salmah, M. R., Satho, Tomomitsu, Miake, Fumio, Boots, Michael, Sazaly, AbuBakar
Format: Article
Language:English
Subjects:
Aedes - physiology
Aedes albopictus
Animal Physiology
Animal populations
Animals
Aquatic insects
Biological and Medical Physics
Biophysics
Containers
Earth and Environmental Science
Environment
Environmental Health
Female
Flushing
Habitats
Larva
Larvae
Meteorology
Mosquitoes
Original Paper
Oviposition
Plant Physiology
Population density
Population Dynamics
Pupa
Rain
Simulated rainfall
Simulation
Water levels
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Summary: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).
ISSN:0020-7128
1432-1254
DOI:10.1007/s00484-011-0402-0