Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Evaluation of methods for collecting mosquitoes (Culicidae: Diptera) in canopy and ground strata in the Brazilian Savanna.

Luis F. Mucci
ORCID logo ,
Eduardo S. Bergo
* ,
Juliana Telles De Deus
* ,
Simone Luchetta Reginato
* ,
Mariza Pereira
,
Vera L. F. de Camargo-Neves
*
Version 1 : Received: 9 October 2022 / Approved: 13 October 2022 / Online: 13 October 2022 (03:20:46 CEST)

A peer-reviewed article of this Preprint also exists.

Mucci, L.F.; Bergo, E.S.; Deus, J.T.; Reginato, S.L.; Pereira, M.; Camargo-Neves, V.L.F. Evaluation of Methods for Collecting Mosquitoes (Culicidae: Diptera) in Canopy and Ground Strata in the Brazilian Savanna. Trop. Med. Infect. Dis. 2022, 7, 446. Mucci, L.F.; Bergo, E.S.; Deus, J.T.; Reginato, S.L.; Pereira, M.; Camargo-Neves, V.L.F. Evaluation of Methods for Collecting Mosquitoes (Culicidae: Diptera) in Canopy and Ground Strata in the Brazilian Savanna. Trop. Med. Infect. Dis. 2022, 7, 446.

Abstract

The hand-net is the standard method for capturing mosquitoes with sylvatic diurnal activity in disease outbreaks in Brazil. However, occupational risks and biases related to the collectors´ abilities and attractiveness are important limitations. In this study, we compared hand-nets with automatic traps (CDC) associated to CO2 and BG-Lure®, in the Vassununga State Park, a Brazilian Savanna protection area. The collections carried out over 27 days, on the ground and the forest canopy. A total of 1,555 mosquitoes were obtained in 20 taxa. The diversity index ranged between 1.12 and 1.79 and the dominance index, from 0.22 to 0.40. The dominant species in the ground was Aedes scapularis (46.0%) and in the canopy, Hg. janthinomys/capricornii (31.9%). Haemagogus leucocelaenus was rare (n=2). The hand-net resulted in the greatest diversity and abundance of species in both strata, followed by traps associated with CO2. A low degree of similarity was observed between the hand-net on the ground compared to the other capture methods. The use of BG-Lure® alone resulted in a low number of specimens. In conclusion, the hand-net is still the method of choice for collecting arbovirus vectors in the diurnal period, especially yellow fever vectors.

Keywords

Diurnal mosquitoes; Kairomones, Canopy stratum, Brazilian savanna

Subject

Biology and Life Sciences, Insect Science

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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