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. 2021 Mar 16;11(1):6081.
doi: 10.1038/s41598-021-85752-y.

Oviposition behavior of wild yellow fever vector mosquitoes (Diptera: Culicidae) in an Atlantic Forest fragment, Rio de Janeiro state, Brazil

Shayenne Olsson Freitas Silva  1   2 , Cecilia Ferreira de Mello  1   3 , Ronaldo Figueiró  4   5   6 , Tatiana Docile  7   8 , Michele Serdeiro  1 , Fabiana Fagundes Fumian  1   4 , Jeronimo Alencar  9
Affiliations

Oviposition behavior of wild yellow fever vector mosquitoes (Diptera: Culicidae) in an Atlantic Forest fragment, Rio de Janeiro state, Brazil

Shayenne Olsson Freitas Silva et al. Sci Rep. .

Abstract

Although there are many studies on the control of mosquito vectors of the yellow fever virus (YFV) in tropical forests, there are still few ecological studies regarding abiotic factors effect on these mosquitoes. Here we characterize these effects on oviposition behavior, abundance, and diversity of mosquito vectors of YFV. The study was conducted in Córrego da Luz Municipal Park, in Casimiro de Abreu, Rio de Janeiro state, Brazil, from July 2018 to December 2019. Ovitraps were placed at ground level and 3 m high. The data were tested for normality using the Shapiro-Wilk test, followed by an independent sample analysis, the Mann-Whitney test. The Shannon Diversity Index was used to evaluate the abundance of mosquitos' eggs collected at both ground level and 3 m high. We highlight the presence of Haemagogus janthinomys and Hg. leucocelaenus, primary YFV vectors in forest areas. The abundance of Hg. leucocelaenus (63%), Hg. janthinomys (75%), and Aedes terrens (58%) was higher at the height of 3 m, while Ae. albopictus (52%) was higher at ground level. Aedes albopictus was positively correlated with temperature. Culicidae monitoring is essential for assessing the YFV transmission cycle in Atlantic forest fragments.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Figure 1
Figure 1
Species of Culicidae collected at ground level and 3 m, in Córrego da Luz Municipal Park, in the city of Casimiro de Abreu, Rio de Janeiro state, Brazil.
Figure 2
Figure 2
Linear regression test graph of Ae. albopictus related to temperature (ºC), in Córrego da Luz Municipal Park, in the city of Casimiro de Abreu, Rio de Janeiro state, Brazil.
Figure 3
Figure 3
Sampling sites in the Córrego da Luz Municipal Park, located in the city of Casimiro de Abreu, Rio de Janeiro state, Brazil. Maps were prepared in ArcGIS Desktop: Release 10.5. Redlands, CA (ESRI) (https://www.esri.com/en-us/arcgis/products/arcgis-pro/overview/. Accessed: November 2020).
See this image and copyright information in PMC

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