The evening crepuscular host-seeking activity of Anopheles mosquitoes in northeast Brazil.

Autor:	Costa-Neta BM; Laboratório de Entomologia Médica, Centro de Ciências de Chapadinha, Universidade Federal do Maranhão, Chapadinha, MA 65500-000, Brazil.; Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Maranhão, CEP: 65080-805, São Luís, Maranhão, Brazil., de Sousa FCDS; Programa de Pós-Graduação em Ciência Animal, Centro de Ciências de Chapadinha, Universidade Federal do Maranhão, CEP: 65500-000, Chapadinha, MA, Brazil., de Araújo EC; Laboratório de Entomologia Médica, Centro de Ciências de Chapadinha, Universidade Federal do Maranhão, Chapadinha, MA 65500-000, Brazil., Viana JDC; Laboratório de Entomologia Médica, Centro de Ciências de Chapadinha, Universidade Federal do Maranhão, Chapadinha, MA 65500-000, Brazil., Brito JM; Laboratório de Entomologia Médica, Centro de Ciências de Chapadinha, Universidade Federal do Maranhão, Chapadinha, MA 65500-000, Brazil., Silva FS; Laboratório de Entomologia Médica, Centro de Ciências de Chapadinha, Universidade Federal do Maranhão, Chapadinha, MA 65500-000, Brazil.; Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal do Maranhão, CEP: 65080-805, São Luís, Maranhão, Brazil.; Programa de Pós-Graduação em Ciências Ambientais, Centro de Ciências de Chapadinha, Universidade Federal do Maranhão, CEP: 65500-000, Chapadinha, MA, Brazil.; Programa de Pós-Graduação em Biodiversidade e Conservação, Universidade Federal do Maranhão, CEP: 65080-805, São Luís, MA, Brazil.
Jazyk:	angličtina
Zdroj:	Journal of medical entomology [J Med Entomol] 2023 Sep 12; Vol. 60 (5), pp. 1008-1015.
DOI:	10.1093/jme/tjad071
Abstrakt:	Studies on the timing of anopheline host-seeking are important for understanding mosquito ecology, behaviors, and possible role in disease transmission. To study the evening crepuscular host-seeking activity of anophelines and the effects of moonlight, anopheline mosquitoes were collected with light traps settled in a livestock area in the Brazilian Cerrado region. Traps (Silva traps) were placed next to animal enclosures at 1.5 m asl. The research was divided in 2 experiments: the first experiment (12 nights) comprised 2 trapping periods, one from 6 PM to 7 PM and one from 7 PM to 6 AM, and the second experiment (16 evenings) divided in three 20-min intervals based on the 3 twilight phases (civil: 6-6:20 PM; nautical: 6:20-6:40 PM; and astronomical: 6:40-7 PM). A total of 2,815 anopheline mosquitoes and 9 species were found. The main species were Anopheles triannulatus s.l., An. argyritarsis, An. goeldii, and An. evanse. Host-seeking mosquitoes were more frequently active during the first hour after sunset, with a significant peak in the second 20-min interval. After that, a decrease in the number of individuals was observed from the astronomical twilight onwards. Moonlight did not affect the evening flight activity of anophelines. By using LED-based passive light traps, the evening arrival time of anophelines at blood-feeding sites was demonstrated, and it may be a key time window for malaria vector control interventions. (© The Author(s) 2023. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
Databáze:	MEDLINE
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