Marcel Miranda de Medeiros Silva

@ufrn.br

Biosciences Centre (CB), Parasitology and Microbiology Department (DMP)
Federal Univeristy of Rio Grande do Norte (UFRN)

Marcel Miranda de Medeiros Silva


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https://researchid.co/mmedbio

EDUCATION

Biology teacher (2014), Master's degree (2017) in Biological Sciences, and PhD (on going) at the Federal University of Rio Grande do Norte. Since 2012, being collaborated and developed work in the field of Entomology/Parasitology, with an emphasis on Medical-Veterinary Entomology. Has experience in research lines involving the bioecology of phlebotomine sand flies and, sporadically, participates in projects involving the bioecology of culicids and ceratopogonids, in addition to participating in extension activities and events in scientific dissemination and consulting work involving the survey of entomofauna of medical importance in the preparation of environmental impacts studies, monitoring and rescue of fauna.

RESEARCH, TEACHING, or OTHER INTERESTS

Environmental Science, Animal Science and Zoology, Ecological Modeling, Ecology, Evolution, Behavior and Systematics
2

Scopus Publications

Scopus Publications

  • Potential vectors of Leishmania spp. in an Atlantic Forest conservation unit in northeastern Brazil under anthropic pressure
    Marcos Paulo Gomes Pinheiro, Cássio Lázaro Silva-Inacio, Marcel Miranda de Medeiros Silva, Paulo Sérgio Fagundes de Araújo, Maria de Fátima Freire de Melo Ximenes
    Parasites and Vectors, 2021
    BackgroundPhlebotomines are a group of insects which include vectors of theLeishmaniaparasites that cause visceral leishmaniasis (VL) and cutaneous leishmaniasis (CL), diseases primarily affecting populations of low socioeconomic status. VL in Brazil is caused byLeishmania infantum, with transmission mainly attributed toLutzomyia longipalpis, a species complex of sand fly, and is concentrated mainly in the northeastern part of the country. CL is distributed worldwide and occurs in five regions of Brazil, at a higher incidence in the north and northeast regions, with etiological agents, vectors, reservoirs and epidemiological patterns that differ from VL. The aim of this study was to determine the composition, distribution and ecological relationships of phlebotomine species in an Atlantic Forest conservation unit and nearby residential area in northeastern Brazil.MethodsCenters for Disease Control and Shannon traps were used for collections, the former at six points inside the forest and in the peridomestic environment of surrounding residences, three times per month for 36 months, and the latter in a forest area, once a month for 3 months. The phlebotomines identified were compared with climate data using simple linear correlation, Pearson’s correlation coefficient and cross-correlation. The estimate of ecological parameters was calculated according to the Shannon-Wiener diversity index, standardized index of species abundance and the dominance index.ResultsA total of 75,499 phlebotomines belonging to 11 species were captured in the CDC traps, the most abundant beingEvandromyia walkeri,Psychodopygus wellcomeiandLu. longipalpis.Evandromyia walkeriabundance was most influenced by temperature at collection time and during the months preceding collection and rainfall during the months preceding collection.Psychodopygus wellcomeiabundance was most affected by rainfall and relative humidity during the collection month and the month immediately preceding collection time.Lutzomyia longipalpisabundance showed a correlation with temperature and the rainfall during the months preceding collection time. The Shannon trap contained a total of 3914 phlebotomines from these different species.Psychodopygus wellcomei, accounting for 91.93% of the total, was anthropophilic and active mainly at night.ConclusionsMost of the species collected in the traps were seasonal and exhibited changes in their composition and population dynamics associated with local adaptions. The presence of vectorsPs. wellcomeiandLu. longipalpisunderscore the epidemiological importance of these phlebotomines in the conservation unit and surrounding anthropized areas. Neighboring residential areas should be permanently monitored to prevent VL or CL transmission and outbreaks.Graphical Abstract
  • Sand flies (Diptera, Psychodidae, Phlebotominae), vectors of Leishmania protozoa, at an Atlantic Forest Conservation Unit in the municipality of Nísia Floresta, Rio Grande do Norte state, Brazil
    Marcos Paulo Gomes Pinheiro, Marcel Miranda de Medeiros Silva, João Batista Silva Júnior, José Hilário Tavares da Silva, Maria de Lima Alves, et al.
    Parasites and Vectors, 2016