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Publication Details
Year :

2013

Journal :

Lim Kwee Wee, Sit Nam Weng, Norzahira Raduan, Sing Kong Wah, Wong Hong Ming, Chew Hwai Shi, Firdaud Rambli, Cheryl Jacyln Ahok, Suria Marlina, Nazni Wasi Ahmad, Andrew McKemy, SS Vasan and Lee Han Lim (2013). Relationship between rainfall and Aedes larval population at two insular sites in Pulau Ketam, Selangor, Malaysia. Southeast Asian Journal of Tropical Medicine and Public Health 44(2): 157-166

Abstract :

Two insular settlements (Kampung Pulau Ketam and Kampung Sungai Lima) were selected to study the population dynamics of Aedes aegypti and Aedes albopictus mosquitoes, vectors of dengue and chikungunya infections. Ovitrap surveillance was conducted between October 2007 and October 2008. There was an inverse negative association between ovitrap index and rainfall at the time of collection, probably because rainfall increased the number of available oviposition sites. Rainfall and ovitrap index were positively associates the 25th day after
rainfall occurred. A minor, second peak was observed from the 38th to the 42nd day. The first peak was consistent with the minimum 18-day period between the hatching of eggs to the first oviposition. The second minor peak could be due to the second gonotrophic cycle of the female mosquitoes. Rainfall is an important environmental factor associated with Aedes breeding at the study sites.

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