Phlebotomine Fauna Diptera: Psychodidae and Putative Vectors of Leishmaniases in Impacted Area by Hydroelectric Plant, State of Tocantins, BrazilReportar como inadecuado




Phlebotomine Fauna Diptera: Psychodidae and Putative Vectors of Leishmaniases in Impacted Area by Hydroelectric Plant, State of Tocantins, Brazil - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Background

Although leishmaniases are regarded as serious public health issues in the State of Tocantins, as consequence of the impact of environmental changes, small advances in taxonomic and ecological studies of Phlebotominae fauna are taking place in this state. The present study aimed to improve the knowledge about the sand flies, as well as about the aspects of the bioecology of leishmaniases vectors from Porto Nacional, a city that was directly impacted by the construction of Luís Eduardo Magalhães Hydroelectric Plant HEP – Lajeado.

Methodology-Principal Findings

Sand flies were collected monthly using CDC light traps and Shannon traps for a period of 40 consecutive months, at different monitoring stations, where 7162 specimens were collected and 48 species were detected. Among the species found, 22 are first records in the state and seven are considered important vectors of leishmaniases. Lutzomyia longipalpis, the vector of American Visceral Leishmaniasis AVL showed higher frequency in urban compared to rural areas, and Nyssomyia whitmani, the vector of American Cutaneous Leishmaniasis ACL, predominated in rural areas. The frequency and habits of sand fly vectors are discussed considering environmental characteristics and climatic factors.

Conclusions-Significance

The construction of dams requires a great amount of labor, therefore attracting people from elsewhere. Increased migration, without adequate structure, leads to bad living conditions in new and unplanned settlements. It also leads to deforestation associated with environmental impacts, which can facilitate the spread of leishmaniases.This study discusses the importance of Lu. longipalpis and Ny. whitmani on the transmission cycles of leishmaniases in Porto Nacional and the record of Bi. flaviscutellata in periurban area of the city.



Autor: Maurício Luiz Vilela , Carina Graser Azevedo, Bruno M. Carvalho, Elizabeth F. Rangel

Fuente: http://plos.srce.hr/



DESCARGAR PDF




Documentos relacionados