Daily survival rates and dispersal of Aedes aegypti females in Rio de Janeiro, Brazil

被引：115

作者：

Maciel-De-Freitas, Rafael

Codeco, Claudia Torres

Lourenco-De-Oliveira, Ricardo

机构：

[1] Fiocruz MS, Inst Oswaldo Cruz, Dept Entomol, Lab Transmissores Hematozoarios, BR-21040360 Rio De Janeiro, Brazil

[2] Fiocruz MS, Programa Computacao, BR-21045900 Rio De Janeiro, Brazil

来源：

AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE | 2007年 / 76卷 / 04期

关键词：

D O I：

10.4269/ajtmh.2007.76.659

中图分类号：

R1 [预防医学、卫生学];

学科分类号：

1004 ; 120402 ;

摘要：

Daily survival rates, life expectancy, dispersal, and parity are important components of vectorial capacity of Aedes aegypti. These parameters were estimated for mosquito populations from a slum and a suburban district in Rio de Janeiro, during the wet and dry seasons in 2005. In each mark-release-recapture experiment, three cohorts of dust-marked Ae. aegypti females were released. Recaptures were carried out daily in randomly selected houses, using backpack aspirators, adult traps, and sticky ovitraps. Recapture varied between 6.81% and 14.26%. Daily survival was estimated by fitting two alternative models: exponential and nonlinear models with correction for the removal of individuals. Slum area presented higher survival and parity rates (68.5%). Dispersal rates were higher in the suburban area, where a maximum dispersal of 363 m was observed. Results suggest intense risk of dengue epidemic, particularly in the urban area.

引用

页码：659 / 665

页数：7

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