Abiotic factors and population dynamic of Aedes aegypti and Aedes albopictus in an endemic area of dengue in Brazil
ABSTRACT Aedes aegypti and Aedes albopictus are exotic species in the Americas with high epidemiological relevance as they are vectors of many pathogens. This study aimed at understanding the population dynamics of A. aegypti and A. albopictus and the influence of abiotic factors in an endemic area of dengue. The study was conducted in the urban area of Campo Grande, Mato Grosso do Sul, Brazil, over one year. In seven regions of the city, 50 ovitraps were installed in each neighborhood. The development of the larvae was monitored under controlled laboratory conditions until they reached the adult phase. A total of 50,900 eggs of Aedes sp. were collected, 26,073 of which reached adulthood: 25,496 (97.8 %) A. aegypti and 540 (2.1%) A. albopictus. A. aegypti was observed in all months during the study. The highest number of A. albopictus eggs were collected in June, while in August and September, an absence of this species was noted. Abiotic factors such as temperature, humidity and rainfall were responsible for the observed fluctuations in the mosquito population. The presence of A. albopictus in the urban area of the city is concerning because it could become a potential vector for other arboviruses that afflict human populations. The occurrence of these species in Campo Grande reinforces the need for constant entomological and epidemiological surveillance so that informed actions could be taken to decrease potential breeding sites.
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Instituto de Medicina Tropical de São Paulo
2019
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oai:scielo:S0036-466520190050002072019-04-01Abiotic factors and population dynamic of Aedes aegypti and Aedes albopictus in an endemic area of dengue in BrazilCustódio,Jeniffer Michelline de OliveiraNogueira,Livia Maria SerpaSouza,Daiana AlovisiFernandes,Magda FreitasOshiro,Elisa TeruyaOliveira,Everton Falcão dePiranda,Eliane MattosOliveira,Alessandra Gutierrez de Aedes sp Entomological study Infestation Urban areas ABSTRACT Aedes aegypti and Aedes albopictus are exotic species in the Americas with high epidemiological relevance as they are vectors of many pathogens. This study aimed at understanding the population dynamics of A. aegypti and A. albopictus and the influence of abiotic factors in an endemic area of dengue. The study was conducted in the urban area of Campo Grande, Mato Grosso do Sul, Brazil, over one year. In seven regions of the city, 50 ovitraps were installed in each neighborhood. The development of the larvae was monitored under controlled laboratory conditions until they reached the adult phase. A total of 50,900 eggs of Aedes sp. were collected, 26,073 of which reached adulthood: 25,496 (97.8 %) A. aegypti and 540 (2.1%) A. albopictus. A. aegypti was observed in all months during the study. The highest number of A. albopictus eggs were collected in June, while in August and September, an absence of this species was noted. Abiotic factors such as temperature, humidity and rainfall were responsible for the observed fluctuations in the mosquito population. The presence of A. albopictus in the urban area of the city is concerning because it could become a potential vector for other arboviruses that afflict human populations. The occurrence of these species in Campo Grande reinforces the need for constant entomological and epidemiological surveillance so that informed actions could be taken to decrease potential breeding sites.info:eu-repo/semantics/openAccessInstituto de Medicina Tropical de São PauloRevista do Instituto de Medicina Tropical de São Paulo v.61 20192019-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46652019005000207en10.1590/s1678-9946201961018 |
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Custódio,Jeniffer Michelline de Oliveira Nogueira,Livia Maria Serpa Souza,Daiana Alovisi Fernandes,Magda Freitas Oshiro,Elisa Teruya Oliveira,Everton Falcão de Piranda,Eliane Mattos Oliveira,Alessandra Gutierrez de |
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Custódio,Jeniffer Michelline de Oliveira Nogueira,Livia Maria Serpa Souza,Daiana Alovisi Fernandes,Magda Freitas Oshiro,Elisa Teruya Oliveira,Everton Falcão de Piranda,Eliane Mattos Oliveira,Alessandra Gutierrez de Abiotic factors and population dynamic of Aedes aegypti and Aedes albopictus in an endemic area of dengue in Brazil |
author_facet |
Custódio,Jeniffer Michelline de Oliveira Nogueira,Livia Maria Serpa Souza,Daiana Alovisi Fernandes,Magda Freitas Oshiro,Elisa Teruya Oliveira,Everton Falcão de Piranda,Eliane Mattos Oliveira,Alessandra Gutierrez de |
author_sort |
Custódio,Jeniffer Michelline de Oliveira |
title |
Abiotic factors and population dynamic of Aedes aegypti and Aedes albopictus in an endemic area of dengue in Brazil |
title_short |
Abiotic factors and population dynamic of Aedes aegypti and Aedes albopictus in an endemic area of dengue in Brazil |
title_full |
Abiotic factors and population dynamic of Aedes aegypti and Aedes albopictus in an endemic area of dengue in Brazil |
title_fullStr |
Abiotic factors and population dynamic of Aedes aegypti and Aedes albopictus in an endemic area of dengue in Brazil |
title_full_unstemmed |
Abiotic factors and population dynamic of Aedes aegypti and Aedes albopictus in an endemic area of dengue in Brazil |
title_sort |
abiotic factors and population dynamic of aedes aegypti and aedes albopictus in an endemic area of dengue in brazil |
description |
ABSTRACT Aedes aegypti and Aedes albopictus are exotic species in the Americas with high epidemiological relevance as they are vectors of many pathogens. This study aimed at understanding the population dynamics of A. aegypti and A. albopictus and the influence of abiotic factors in an endemic area of dengue. The study was conducted in the urban area of Campo Grande, Mato Grosso do Sul, Brazil, over one year. In seven regions of the city, 50 ovitraps were installed in each neighborhood. The development of the larvae was monitored under controlled laboratory conditions until they reached the adult phase. A total of 50,900 eggs of Aedes sp. were collected, 26,073 of which reached adulthood: 25,496 (97.8 %) A. aegypti and 540 (2.1%) A. albopictus. A. aegypti was observed in all months during the study. The highest number of A. albopictus eggs were collected in June, while in August and September, an absence of this species was noted. Abiotic factors such as temperature, humidity and rainfall were responsible for the observed fluctuations in the mosquito population. The presence of A. albopictus in the urban area of the city is concerning because it could become a potential vector for other arboviruses that afflict human populations. The occurrence of these species in Campo Grande reinforces the need for constant entomological and epidemiological surveillance so that informed actions could be taken to decrease potential breeding sites. |
publisher |
Instituto de Medicina Tropical de São Paulo |
publishDate |
2019 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46652019005000207 |
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