Geographic distribution of phlebotomine sandfly species (Diptera: Psychodidae) in Central-West Brazil

AUTOR(ES)

Almeida, Paulo Silva de, Andrade, Andrey José de, Sciamarelli, Alan, Raizer, Josué, Menegatti, Jaqueline Aparecida, Hermes, Sandra Cristina Negreli Moreira, Carvalho, Maria do Socorro Laurentino de, Gurgel-Gonçalves, Rodrigo

FONTE

Mem. Inst. Oswaldo Cruz

DATA DE PUBLICAÇÃO

26/05/2015

RESUMO

This study updates the geographic distributions of phlebotomine species in Central-West Brazil and analyses the climatic factors associated with their occurrence. The data were obtained from the entomology services of the state departments of health in Central-West Brazil, scientific collections and a literature review of articles from 1962-2014. Ecological niche models were produced for sandfly species with more than 20 occurrences using the Maxent algorithm and eight climate variables. In all, 2,803 phlebotomine records for 127 species were analysed. Nyssomyia whitmani,Evandromyia lenti and Lutzomyia longipalpiswere the species with the greatest number of records and were present in all the biomes in Central-West Brazil. The models, which were produced for 34 species, indicated that the Cerrado areas in the central and western regions of Central-West Brazil were climatically more suitable to sandflies. The variables with the greatest influence on the models were the temperature in the coldest months and the temperature seasonality. The results show that phlebotomine species in Central-West Brazil have different geographical distribution patterns and that climate conditions in essentially the entire region favour the occurrence of at least one Leishmania vector species, highlighting the need to maintain or intensify vector control and surveillance strategies.

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