title: Temporal abundance of Aedes aegypti in Manaus, Brazil, measured by two trap types for adult mosquitoes.
abstract: A longitudinal study was conducted in Manaus, Brazil, to monitor changes of adult Aedes aegypti (L.) abundance. The objectives were to compare mosquito collections of two trap types, to characterise temporal changes of the mosquito population, to investigate the influence of meteorological variables on mosquito collections and to analyse the association between mosquito collections and dengue incidence. Mosquito monitoring was performed fortnightly using MosquiTRAPs (MQT) and BG-Sentinel (BGS) traps between December 2008-June 2010. The two traps revealed opposing temporal infestation patterns, with highest mosquito collections of MQTs during the dry season and highest collections of BGS during the rainy seasons. Several meteorological variables were significant predictors of mosquito collections in the BGS. The best predictor was the relative humidity, lagged two weeks (in a positive relationship). For MQT, only the number of rainy days in the previous week was significant (in a negative relationship). The correlation between monthly dengue incidence and mosquito abundance in BGS and MQT was moderately positive and negative, respectively. Catches of BGS traps reflected better the dynamic of dengue incidence. The findings help to understand the effects of meteorological variables on mosquito infestation indices of two different traps for adult dengue vectors in Manaus.
authors.affiliation: Laboratório de Ecologia Química de Vetores, Departamento de Parasitologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil.
authors.forename: Carolin Marlen
authors.initials: CM
authors.lastname: Degener
authors.affiliation: Laboratório de Ecologia Química de Vetores, Departamento de Parasitologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil.
authors.forename: Tatiana Mingote Ferreira de
authors.initials: TM
authors.lastname: Ázara
authors.affiliation: Laboratório de Entomologia Aplicada, Universidade Nilton Lins, Manaus, AM, Brasil.
authors.forename: Rosemary Aparecida
authors.initials: RA
authors.lastname: Roque
authors.affiliation: Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brasil.
authors.forename: Cláudia Torres
authors.initials: CT
authors.lastname: Codeço
authors.affiliation: Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brasil.
authors.forename: Aline Araújo
authors.initials: AA
authors.lastname: Nobre
authors.affiliation: Centro de Estudos dos Trópicos Úmidos, Universidade do Estado do Amazonas, Manaus, AM, Brasil.
authors.forename: Jörg Johannes
authors.initials: JJ
authors.lastname: Ohly
authors.affiliation: Biogents AG, Regensburg, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Geier
authors.affiliation: Laboratório de Ecologia Química de Vetores, Departamento de Parasitologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil.
authors.forename: Álvaro Eduardo
authors.initials: ÁE
authors.lastname: Eiras
mesh_terms: D000330:Aedes; D000818:Animals; D001938:Brazil / Q000453:epidemiology; D003715:Dengue / Q000453:epidemiology* / Q000635:transmission; D005260:Female; D006813:Humidity; D015994:Incidence; D007303:Insect Vectors; D008137:Longitudinal Studies; D008685:Meteorological Concepts; D009032:Mosquito Control; D012621:Seasons; D013997:Time Factors