Diversity of biting midges Culicoides (Diptera: Ceratopogonidae), potential vectors of disease, in different environments in an Amazonian rural settlement, Brazil
Rev. Soc. Bras. Med. Trop
;
53: e20200067, 2020. tab, graf
Artículo
en Inglés
| SES-SP, ColecionaSUS, LILACS
| ID: biblio-1136897
ABSTRACT
Abstract INTRODUCTION:
The Culicoides transmit a variety of pathogens. Our aim was to survey the Culicoides species occurring in an Amazonian rural settlement, comparing abundance, richness, and diversity in different environments.METHODS:
Culicoides were captured using CDC light traps. The Shannon-Wiener (H') and Rényi indices were used to compare species diversity and evenness between environments, the equitability (J') index was used to calculate the uniformity of distribution among species, and similarity was estimated using the Jaccard similarity index. A permutational multivariate analysis of variance was applied to assess the influence of environment on species composition. A non-metric dimensional scale was used to represent the diversity profiles of each environment in a multidimensional space.RESULTS:
6.078 Culicoides were captured, representing 84 species (45 valid species/39 morphotypes). H' values showed the following gradient forest > capoeira > peridomicile > forest edge. The equitability J' was greater in capoeira and forests compared to peridomiciles and the forest edge. The population compositions of each environment differed statistically, but rarefaction estimates indicate that environments of the same type possessed similar levels of richness. Species of medical and veterinary importance were found primarily in peridomiciles C. paraensis, vector of Oropouche virus; C. insignis and C. pusillus, vectors of Bluetongue virus; C. filariferus, C. flavivenula, C. foxi, and C. ignacioi, found carrying Leishmania DNA.CONCLUSIONS:
This study indicates that diversity was higher in natural environments than in anthropized environments, while abundance and richness were highest in the most anthropized environment. These findings suggest that strictly wild Culicoides can adapt to anthropized environments.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Ceratopogonidae
/
Biodiversidad
/
Insectos Vectores
Límite:
Animales
País/Región como asunto:
America del Sur
/
Brasil
Idioma:
Inglés
Revista:
Rev. Soc. Bras. Med. Trop
Año:
2020
Tipo del documento:
Artículo
Institución/País de afiliación:
Fundação Oswaldo Cruz/BR
/
Instituto Nacional de Pesquisas da Amazônia/BR
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