Relationship between rainfall and Aedes larval population at two insular sites in Pulau Ketam, Selangor, Malaysia
Autor(es): Wee Lim Kwee,Weng Sit Nam,Raduan Norzahira,Wah Sing Kong,Ming Wong Hong,Shi Chew Hwai,Rambli Firdaus,Ahok Cheryl Jacyln,Marlina Suria,Ahmad Nazni Wasi,Mckemy Andrew,Vasan S S,Lim Lee Han
Resumo: 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.
Palavras-Chave: Aedes aegypti; Ae. Albopictus; Rainfall; Population dynamic; Malaysia
Imprenta: The Southeast Asian Journal of Tropical Medicine and Public Health, v. 44, n. 2, p. 157-166, 2013
Descritores: Aedes aegypti - Dengue ; Aedes aegypti - Epidemiology ; Aedes aegypti - Public health
Data de publicação: 2013
