title: Relationship between rainfall and Aedes larval population at two insular sites in Pulau Ketam, Selangor, Malaysia.
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.
authors.affiliation: Medical Entomology Unit, Institute for Medical Research, Kuala Lumpur, Malaysia.
authors.forename: Lim Kwee
authors.initials: LK
authors.lastname: Wee
authors.forename: Sit Nam
authors.initials: SN
authors.lastname: Weng
authors.forename: Norzahira
authors.initials: N
authors.lastname: Raduan
authors.forename: Sing Kong
authors.initials: SK
authors.lastname: Wah
authors.forename: Wong Hong
authors.initials: WH
authors.lastname: Ming
authors.forename: Chew Hwai
authors.initials: CH
authors.lastname: Shi
authors.forename: Firdaus
authors.initials: F
authors.lastname: Rambli
authors.forename: Cheryl Jacyln
authors.initials: CJ
authors.lastname: Ahok
authors.forename: Suria
authors.initials: S
authors.lastname: Marlina
authors.forename: Nazni Wasi
authors.initials: NW
authors.lastname: Ahmad
authors.forename: Andrew
authors.initials: A
authors.lastname: Mckemy
authors.forename: S S
authors.initials: SS
authors.lastname: Vasan
authors.forename: Lee Han
authors.initials: LH
authors.lastname: Lim
mesh_terms: D000330:Aedes / Q000254:growth & development*; D000818:Animals; D006801:Humans; D007303:Insect Vectors / Q000254:growth & development*; D007814:Larva / Q000254:growth & development; D008296:Malaysia / Q000453:epidemiology; D010058:Oviposition; D011158:Population Growth; D011891:Rain; D012424:Rural Population; D012621:Seasons