Evaluation of Methods for Collecting Mosquitoes (Culicidae: Diptera) in Canopy and Ground Strata in the Brazilian Savanna

Autor(es)

Mucci, Luis Filipe ; Bergo, Eduardo Sterllino ; de Deus, Juliana Telles ; Reginato, Simone Luchetta ; Pereira, Mariza ; de Camargo-Nevese, Vera Lucia Fonseca

• Tipo de documento: Artigo Científico
• Fonte: TROPICAL MEDICINE AND INFECTIOUS DISEASE; v. 7, n. 12, p. 14-pg., 2022-12-01.

Resumo

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 (R) 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 1555 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 on 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 the 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 (R) 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. (AU)

• Processo FAPESP: 17/50345-5 - Plano de desenvolvimento institucional em pesquisa e tecnologia para a vigilância e controle de vetores da Superintendência de Controle de Endemias - SUCEN (PDIp)
• Beneficiário: Vera Lucia Fonseca de Camargo Neves
• Modalidade de apoio: Auxílio à Pesquisa - Programa Modernização de Institutos Estaduais de Pesquisa