Natural Breeding Places for Phlebotomine Sand Flies (Diptera: Psychodidae) in a Semiarid Region of Bahia State, Brazil

Few microhabitats have been previously identified as natural breeding places for phlebotomine sand flies so far, and little is known about the influence of climate variables in their density. The present study was conducted in a dry region with a semiarid climate, where visceral leishmaniasis occurs...

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Bibliographic Details
Published in:Journal of Tropical Medicine
Main Authors: Bruno Sangiorgi, Daniel Neves Miranda, Diego Ferreira Oliveira, Edivaldo Passos Santos, Fernanda Regis Gomes, Edna Oliveira Santos, Aldina Barral, José Carlos Miranda
Format: Article in Journal/Newspaper
Language:English
Published: Hindawi Limited 2012
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Online Access:https://doi.org/10.1155/2012/124068
https://doaj.org/article/5797657307b24f0d861ecd8c1c45d007
Description
Summary:Few microhabitats have been previously identified as natural breeding places for phlebotomine sand flies so far, and little is known about the influence of climate variables in their density. The present study was conducted in a dry region with a semiarid climate, where visceral leishmaniasis occurs in humans and dogs. The occurrence of breeding places in specific microhabitats was investigated in soil samples collected from five houses, which were also the location used for sampling of adults. All the microhabitats sampled by our study were identified as natural breeding places due to the occurrence of immature forms of sand flies. On a weekly basis, the number of adult sand flies captured was positively correlated with the mean temperature from preceding weeks. These results, in addition to promoting an advance in the knowledge of sand flies biology, may furnish a tool for optimizing the control of the sand flies, by indicating the most suitable periods and microhabitats for the application of insecticides.