Article
Interaction of Haemagogus leucocelaenus (Diptera: Culicidae) and Other Mosquito Vectors in a Forested Area, Rio de Janeiro, Brazil
Registro en:
SILVA, Shayenne Olsson Freitas et al. Interaction of Haemagogus leucocelaenus (Diptera: Culicidae) and Other Mosquito Vectors in a Forested Area, Rio de Janeiro, Brazil. Tropical Medicine and Infectious Disease, v. 7, 94, p. 1 - 10, June 2022.
2414-6366
10.3390/tropicalmed7060094
Autor
Silva, Shayenne Olsson Freitas
Mello, Cecilia Ferreira de
Machado, Sergio Lisboa
Leite, Paulo José
Alencar, Jeronimo
Resumen
The yellow fever (YF) virus has been detected throughout Brazil, with the occurrence of
human cases, cyclic epizootics, and its isolation from Haemagogus janthinomys and Hg. leucocelaenus.
We assessed the seasonal occurrence, egg abundancy, and oviposition interaction of mosquito vector
species captured at a Private Natural Heritage Reserve in the Atlantic Forest biome. A total of
2943 eggs and 1538 mosquito larvae were collected from which 1231 belonged to entomologically
important species. Ovitraps were used to collect immature mosquitoes from September 2019 to
January 2021. The Mann–Whitney test was used to assess the differences in the abundance of eggs
between rainy and dry seasons. Kruskal–Wallis and Dunn’s post hoc tests were used to evaluate
the significance of the differences in the number of individuals from vector species. The highest
percentage of mosquito vector eggs were collected during the rainy season, from December to
February. Most eggs recovered from ovitraps belonged to the species Hg. leucocelaenus, representing
85% of all mosquito eggs identified. The other species had lower abundances and percentages: Aedes
terrens (7%), Haemagogus janthinomys (5%) and Aedes albopictus (3%). The species that shared breeding
sites with a higher frequency were Hg. leucocelaenus and Hg. janthinomys, with a statistically positive
correlation ( = 0.74). This finding suggests that maybe the presence of Hg. leucocelaenus eggs acted as
an attractant for Hg. janthinomys or vice versa. An understanding of mosquito oviposition behavior
is necessary for the development of surveillance and control approaches directed against specific
pathogen vectors of medical and veterinary importance.