However, in the case of cutaneous leishmaniasis, the presence of other sand fly vectors (in addition to L. The abundance of these species could explain, respectively, the endemicity of cutaneous leishmaniasis and sporadic cases of visceral leishmaniasis in the study area. longipalpis in the peridomicile of houses in Lençóis National Park. The present results confirm the present of L. The remaining four species presented CI values between 25 and 50 % and were considered accessory. longipalpis were the most abundant species and were classified as constant (constancy index, CI = 100 %) along with L. Although peridomiciliary and extradomiciliary environments presented similar species richness, the Shannon diversity index was significantly lower in the former ( H’ = 2.4) compared with the latter ( H’ = 4.98). ResultsĪ total of 4,474 individual sand flies were collected over the year with the highest abundance recorded during the rainy season (December to June). At each site, one trap was placed in the peridomicile near to animal enclosures and another (extradomicile) at 500 m from the peridomicile. Sampling was performed monthly using automatic light traps installed 1.5 m above the soil adjacent to 13 randomly selected rural dwellings. The survey was conducted at three sites located in the municipalities of Barreirinhas and Santo Amaro between September 2012 and August 2013.
This study aimed to evaluate the composition, abundance, species richness and seasonal distribution of sand flies in the region and to determine the constancy of the insect population. The adjoining area has suffered from the impact of human activity and, consequently, has experienced outbreaks of leishmaniasis. The Lençóis Maranhenses National Park, located in Maranhão, Brazil, is a region of exceptional beauty and a popular tourist destination.
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