Please use this identifier to cite or link to this item: https://www.arca.fiocruz.br/handle/icict/23323
Title: Characterization of the spatial and temporal dynamics of the dengue vector population established in urban areas of Fernando de Noronha, a Brazilian oceanic island
Authors: Regis, Lêda N.
Acioli, Ridelane Veiga
Silveira, José Constantino
Melo-Santos, Maria Alice Varjal de
Cunha, Mércia Cristiane Santana da
Souza, Fátima
Batista, Carlos Alberto Vieira
Barbosa, Rosângela Maria Rodrigues
Oliveira, Cláudia Maria Fontes de
Ayres, Constância Flávia Junqueira
Monteiro, Antonio Miguel Vieira
Souza, Wayner Vieira
Affilliation: Fundaçao Oswaldo Cruz. Instituto Aggeu Magalhães. Departamento de Entomologia. Recife, PE, Brasil.
Distrito de Fernando de Noronha. Departamento de Saúde. Fernando de Noronha, PE, Brasil.
Fundaçao Oswaldo Cruz. Instituto Aggeu Magalhães. Departamento de Entomologia. Recife, PE, Brasil.
Fundaçao Oswaldo Cruz. Instituto Aggeu Magalhães. Departamento de Entomologia. Recife, PE, Brasil.
Fundaçao Oswaldo Cruz. Instituto Aggeu Magalhães. Departamento de Entomologia. Recife, PE, Brasil.
Distrito de Fernando de Noronha. Departamento de Saúde. Fernando de Noronha, PE, Brasil.
Distrito de Fernando de Noronha. Departamento de Saúde. Fernando de Noronha, PE, Brasil.
Fundaçao Oswaldo Cruz. Instituto Aggeu Magalhães. Departamento de Entomologia. Recife, PE, Brasil.
Fundaçao Oswaldo Cruz. Instituto Aggeu Magalhães. Departamento de Entomologia. Recife, PE, Brasil.
Fundaçao Oswaldo Cruz. Instituto Aggeu Magalhães. Departamento de Entomologia. Recife, PE, Brasil.
Instituto Nacional de Pesquisas Espaciais. Centro de Ciência do Sistema Terrestre. São José dos Campos, SP, Brasil.
Fundaçao Oswaldo Cruz. Instituto Aggeu Magalhães. Departamento de Saúde Coletiva. Recife, PE, Brasil.
Abstract: Aedes aegypti has played a major role in the dramatic expansion of dengue worldwide. The failure of control programs in reducing the rhythm of global dengue expansion through vector control suggests the need for studies to support more appropriated control strategies. We report here the results of a longitudinal study on Ae. aegypti population dynamics through continuous egg sampling aiming to characterize the infestation of urban areas of a Brazilian oceanic island, Fernando de Noronha. The spatial and temporal distribution of the dengue vector population in urban areas of the island was described using a monitoring system (SMCP-Aedes) based on a 103-trap network for Aedes egg sampling, using GIS and spatial statistics analysis tools. Mean egg densities were estimated over a 29-month period starting in 2011 and producing monthly maps of mosquito abundance. The system detected continuous Ae. aegypti oviposition in most traps. The high global positive ovitrap index (POI=83.7% of 2815 events) indicated the frequent presence of blood-fed-egg laying females at every sampling station. Egg density (eggs/ovitrap/month) reached peak values of 297.3 (0 - 2020) in May and 295 (0 - 2140) in August 2012. The presence of a stable Ae. aegypti population established throughout the inhabited areas of the island was demonstrated. A strong association between egg abundance and rainfall with a 2-month lag was observed, which combined with a first-order autocorrelation observed in the series of egg counts can provide an important forecasting tool. This first description of the characteristics of the island infestation by the dengue vector provides baseline information to analyze relationships between the spatial distribution of the vector and dengue cases, and to the development of integrated vector control strategies.
Keywords: Aedes monitoring system
Bti
Dengue vector
GIS
Mosquito surveillance; Ovitrap
Ovitrap
keywords: Sistema de monitoramento de Aedes
Bti
Vetor da dengue
SIG
Vigilância de mosquitos
Ovitrap
DeCS: Aedes
crescimento & desenvolvimento
Dengue
transmissão
Insetos Vetores
Animais
Brasil
Entomologia
Feminino
Humanos
Ilhas
Estudos Longitudinais
Dinâmica Populacional
Análise Espaço-Temporal
População Urbana
Issue Date: 2014
Citation: REGIS, L. N. et al. Characterization of the spatial and temporal dynamics of the dengue vector population established in urban areas of Fernando de Noronha, a Brazilian oceanic island. Acta Tropica, v. 137, p. 80–87, set. 2014.
DOI: 10.1016/j.actatropica.2014.04.010
ISSN: 1873-6254
Copyright: open access
Appears in Collections:PE - IAM - Artigos de Periódicos

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