Diversity of sand flies in domiciliary environment of Santarém, state of Pará, Brazil: species composition and abundance patterns in rural and urban areas

Acta Amazonica

Marlisson Augusto Costa Feitosa²  Genimar Rebouças Julião¹  Manoel Djalma Pereira Costa¹  Braulio Belém¹  Felipe Arley Costa Pessoa¹ 

[1] ,Universidade Federal do Oeste do Pará Instituto de Ciências e Tecnologia das Águas Santarém PA

关键词: Leishmaniasis;    anthropic impact;    Amazon;    leishmanioses;    antropização;    Amazônia;   

DOI  :  10.1590/S0044-59672012000400008

来源: SciELO

【 摘 要 】

This paper aimed to evaluate the richness, abundance and frequency of sand fly occurrence in rural and urban areas American visceral Leishmaniasis -AVL is endemic in the study area of Santarém municipality, Pará state. Sand flies were collected during 1995-2000, using CDC light traps placed in neighborhoods and rural areas of the municipality. A total of 53.454 individuals and 26 species of sand flies were collected. The most abundant species in both urban and rural environments was Lutzomyia longipalpis, vector of AVL in the area. The highest species richness by capture was in rural area. In all years sampled, the largest number of species of sand fly collected was always in rural areas. The species of sand flies in urban and rural area were similar in 11 species. In the rural area other 11 species were found, a total of 22 species. Shannon-Wiener index ranged from 0.12 to 0.84 at rural areas and 0.08 to 0.34 at urban ones. In general, rural localities showed higher diversity (H') of phlebotomines than urban ones. Individual-based rarefaction curves for each area demonstrated that urban localities had the lowest expected number of phlebotomine species and the richest rural ones reach higher expected values with lower amount of individuals than urban sites. The most frequent species were Lutzomyia longipalpis, Evandromyia carmelinoi and Bichromomyia flaviscutellata.

【 授权许可】

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