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Change in Anopheles richness and composition in response to artificial flooding during the creation of the Jirau hydroelectric dam in Porto Velho, Brazil

BACKGROUND: Anopheles mosquitoes are the only vectors of human malaria. Anopheles species use standing water as breeding sites. Human activities, like the creation of an artificial lake during the implementation of hydroelectric power plants, lead to changes in environmental characteristics and, the...

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Autores principales: Rodrigures, Moreno S., Batista, Elis P., Silva, Alexandre A., Costa, Fábio M., Neto, Verissimo A. S., Gil, Luiz Herman S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5322614/
https://www.ncbi.nlm.nih.gov/pubmed/28228142
http://dx.doi.org/10.1186/s12936-017-1738-7
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author Rodrigures, Moreno S.
Batista, Elis P.
Silva, Alexandre A.
Costa, Fábio M.
Neto, Verissimo A. S.
Gil, Luiz Herman S.
author_facet Rodrigures, Moreno S.
Batista, Elis P.
Silva, Alexandre A.
Costa, Fábio M.
Neto, Verissimo A. S.
Gil, Luiz Herman S.
author_sort Rodrigures, Moreno S.
collection PubMed
description BACKGROUND: Anopheles mosquitoes are the only vectors of human malaria. Anopheles species use standing water as breeding sites. Human activities, like the creation of an artificial lake during the implementation of hydroelectric power plants, lead to changes in environmental characteristics and, therefore, may changes the species richness and composition of Anopheles mosquitoes. The aim of the present study was to verify whether or not there is an association between the artificial flooding resulting from the construction of the Jirau hydroelectric power plant, and the richness and composition of anophelines. METHODS: Mosquitoes samples were obtained monthly from the Jirau hydroelectric power plant area located at Porto Velho, Rondônia State, using Human Landing Catch (06:00–10:00 PM). Mosquitoes collected were transported to Laboratório de Entomologia Médica FIOCRUZ-RO where they were identified until species using dichotomous key. RESULTS: A total of 6347 anophelines belonging to eight different species were collected. The anophelines species richness was significantly lower during the first flooding stage. Differences in anophelines species composition were found when comparing the first flooding stage with the other stages. Furthermore, the mean number of Anopheles darlingi, the main vector of malaria in the region, increases during the first and the third flooding stages. CONCLUSIONS: The continual monitoring of these vectors during the late operational phase may be useful in order to understand how anophelines will behave in this area. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s12936-017-1738-7) contains supplementary material, which is available to authorized users.
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spelling pubmed-53226142017-03-01 Change in Anopheles richness and composition in response to artificial flooding during the creation of the Jirau hydroelectric dam in Porto Velho, Brazil Rodrigures, Moreno S. Batista, Elis P. Silva, Alexandre A. Costa, Fábio M. Neto, Verissimo A. S. Gil, Luiz Herman S. Malar J Research BACKGROUND: Anopheles mosquitoes are the only vectors of human malaria. Anopheles species use standing water as breeding sites. Human activities, like the creation of an artificial lake during the implementation of hydroelectric power plants, lead to changes in environmental characteristics and, therefore, may changes the species richness and composition of Anopheles mosquitoes. The aim of the present study was to verify whether or not there is an association between the artificial flooding resulting from the construction of the Jirau hydroelectric power plant, and the richness and composition of anophelines. METHODS: Mosquitoes samples were obtained monthly from the Jirau hydroelectric power plant area located at Porto Velho, Rondônia State, using Human Landing Catch (06:00–10:00 PM). Mosquitoes collected were transported to Laboratório de Entomologia Médica FIOCRUZ-RO where they were identified until species using dichotomous key. RESULTS: A total of 6347 anophelines belonging to eight different species were collected. The anophelines species richness was significantly lower during the first flooding stage. Differences in anophelines species composition were found when comparing the first flooding stage with the other stages. Furthermore, the mean number of Anopheles darlingi, the main vector of malaria in the region, increases during the first and the third flooding stages. CONCLUSIONS: The continual monitoring of these vectors during the late operational phase may be useful in order to understand how anophelines will behave in this area. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s12936-017-1738-7) contains supplementary material, which is available to authorized users. BioMed Central 2017-02-22 /pmc/articles/PMC5322614/ /pubmed/28228142 http://dx.doi.org/10.1186/s12936-017-1738-7 Text en © The Author(s) 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research
Rodrigures, Moreno S.
Batista, Elis P.
Silva, Alexandre A.
Costa, Fábio M.
Neto, Verissimo A. S.
Gil, Luiz Herman S.
Change in Anopheles richness and composition in response to artificial flooding during the creation of the Jirau hydroelectric dam in Porto Velho, Brazil
title Change in Anopheles richness and composition in response to artificial flooding during the creation of the Jirau hydroelectric dam in Porto Velho, Brazil
title_full Change in Anopheles richness and composition in response to artificial flooding during the creation of the Jirau hydroelectric dam in Porto Velho, Brazil
title_fullStr Change in Anopheles richness and composition in response to artificial flooding during the creation of the Jirau hydroelectric dam in Porto Velho, Brazil
title_full_unstemmed Change in Anopheles richness and composition in response to artificial flooding during the creation of the Jirau hydroelectric dam in Porto Velho, Brazil
title_short Change in Anopheles richness and composition in response to artificial flooding during the creation of the Jirau hydroelectric dam in Porto Velho, Brazil
title_sort change in anopheles richness and composition in response to artificial flooding during the creation of the jirau hydroelectric dam in porto velho, brazil
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5322614/
https://www.ncbi.nlm.nih.gov/pubmed/28228142
http://dx.doi.org/10.1186/s12936-017-1738-7
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