Mem Inst Oswaldo Cruz, Rio de Janeiro, VOLUME 115 | JUNE 2020
Original Article

The influence of meteorological variables on the oviposition dynamics of Aedes aegypti (Diptera: Culicidae) in four environmentally distinct areas in northeast Brazil

Isabella Cristina da Silva Santos1, +, Cynthia Braga2, Wayner Vieira de Souza3, André Luiz Sá de Oliveira4, Lêda Narcisa Regis5

1Fundação Oswaldo Cruz-Fiocruz, Instituto Aggeu Magalhães, Programa de Pós-Graduação em Saúde Pública, Recife, PE, Brasil
2Fundação Oswaldo Cruz-Fiocruz, Instituto Aggeu Magalhães, Departamento de Parasitologia, Recife, PE, Brasil
3Fundação Oswaldo Cruz-Fiocruz, Instituto Aggeu Magalhães, Departamento de Saúde Coletiva, Recife, PE, Brasil
4Fundação Oswaldo Cruz-Fiocruz, Instituto Aggeu Magalhães, Núcleo de Estatística e Geoprocessamento, Recife, PE, Brasil
5Fundação Oswaldo Cruz-Fiocruz, Instituto Aggeu Magalhães, Departamento de Entomologia, Recife, PE, Brasil

DOI: 10.1590/0074-02760200046
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BACKGROUND Fluctuations in climate have been associated with variations in mosquito abundance.
OBJECTIVES To analyse the influence of precipitation, temperature, solar radiation, wind speed and humidity on the oviposition dynamics of Aedes aegypti in three distinct environmental areas (Brasília Teimosa, Morro da Conceição/Alto José do Pinho and Dois Irmãos/Pintos) of the city of Recife and the Fernando de Noronha Archipelago northeastern Brazil.
METHODS Time series study using a database of studies previously carried out in the areas. The eggs were collected using spatially distributed geo-referenced sentinel ovitraps (S-OVTs). Meteorological satellite data were obtained from the IRI climate data library. The association between meteorological variables and egg abundance was analysed using autoregressive models.
FINDINGS Precipitation was positively associated with egg abundance in three of the four study areas with a lag of one month. Higher humidity (β = 45.7; 95% CI: 26.3 - 65.0) and lower wind speed (β = −125.2; 95% CI: −198.8 - −51.6) were associated with the average number of eggs in the hill area.
MAIN CONCLUSIONS The effect of climate variables on oviposition varied according to local environmental conditions. Precipitation was a main predictor of egg abundance in the study settings.

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doi: 10.1590/0074-02760200046
Financial support: CNPq.
CB (scholarship 303953/2018-7) and WVS (scholarship 306222/2013-2) receive partial support from the National Advisory Board of Scientific and
Technological Development (CNPq).
+ Corresponding author:
Received 29 January 2020
Accepted 16 June 2020

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