| Effects of flooding of the River Paraná on the temporal activity of Anopheles (Nyssorhynchus) darlingi Root (Diptera: Culicidae), at the border state of Mato Grosso do Sul and São Paulo, Brazil. | |
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MedLine Citation:
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PMID: 21085861 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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INTRODUCTION: Study of the temporal activity of malaria vectors during the implantation of a hydroelectric power station on the River Paraná, intended to generate electrical energy. The river separates the States of São Paulo and Mato Grosso do Sul, in Brazil. The objective was to verify whether alterations occurred in the wealth and diversity indices of Anopheles, following two successive floods, extended to the temporal activity and nycthemeral rhythm followed over a five year period. METHODS: Mosquito capture was performed monthly using the Human Attraction Technique and Shannon Traps. The first, executed for 24h, provided the nycthemeral rhythm and the second, lasting 15 h, permitted the tracking of Anopheles during the two floods. RESULTS: The bimodal pattern of Anopheles darlingi defined before these floods was modified throughout the environment interventions. The same effect had repercussions on the populations of An albitarsis s.l., An triannulatus and An galvaoi. Activity prior to twilight was less affected by the environment alterations. CONCLUSIONS: The dam construction provoked changes in Anopheles temporal activity patterns, permitting classification of the area as an ecologically steady and unstable situation. Differences observed in Anopheles behavior due to the capture methods revealed the influence of solo and multiple attractiveness inside the populations studied. |
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Authors:
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Almério de Castro Gomes; Marcia Bicudo de Paula; Delsio Natal; Sabina Léa Davidson Gotlieb; Luis Filipe Mucci |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Revista da Sociedade Brasileira de Medicina Tropical Volume: 43 ISSN: 1678-9849 ISO Abbreviation: Rev. Soc. Bras. Med. Trop. Publication Date: 2010 Sep-Oct |
Date Detail:
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Created Date: 2010-11-18 Completed Date: 2011-04-05 Revised Date: 2011-06-24 |
Medline Journal Info:
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Nlm Unique ID: 7507456 Medline TA: Rev Soc Bras Med Trop Country: Brazil |
Other Details:
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Languages: eng Pagination: 516-22 Citation Subset: IM |
Affiliation:
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Department of Epidemiology, School of Public Health, University of São Paulo, São Paulo, SP, Brazil. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Anopheles / classification, physiology* Biodiversity* Brazil Circadian Rhythm / physiology* Floods* Insect Vectors / physiology* Population Density Population Dynamics Power Plants* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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