An unsettling explanation for the failure of skatole-baited ovitraps to capture Culex mosquitoes  

作　　者：Marcelo H.S.Paiva Rosangela M.R.Barbosa Suzane A.Santos Norma M.Silva Marcia B.Paula Constancia F.J.Ayres Walter S.Leal 

机构地区：[1]Depariamento de Entomologia,Instituto Aggeu Magalhaes,Fundagao Oswaldo Cruz,Av. Professor Moraes Rego,Recife,PE,Brazil [2]CentroAcademicodoAgreste Universidade Federalde Pernambuco,Caruaru,PE,Brazil [3]Departamentode Biologia Celular,Embriologia e Genetica,Centro de Ciencias Biologicas Universidade Federal de Santa Catarina,Florianopolis,SC.Brazil [4]Faculdade de Saude PCiblica,Departamento de Epidemiologia, Universidade de Sao Paulo,Sao Paulo,SP,Brazil [5]Department of Molecular and Cellular Biology,University of California-Davis,Davis,California,USA

出　　处：《Insect Science》2019年第5期873-880,共8页昆虫科学（英文版）

摘　　要：Culex mosquitoes are primarily found in temperate and tropical regions worldwide where they play a crucial role as main vectors of filarial worms and arboviruses. In Recife, a northeast city in Brazil, high densities of Culex quinquefasciatus are often found in association with human populated areas. In marked contrast to another part of the city, field tests conducted in the neighborhood of Sitio dos Pintos showed that trapping of mosquitoes in skatole-baited ovitraps did not differ significantly from captures in control (water) traps. Thus, classical and molecular taxonomic approaches were used to analyze the Culex species circulating in Sitio dos Pintos. Results obtained from both approaches agreed on the cocirculation of Culex quinquefasciatus and Culex nigripalpus in three different areas of this neighborhood. What was initially considered as an unexpected failure of this lure turned out to be a more unsettling problem, that is, the first report in Recife of Culex nigripalpus, a vector of Venezuelan equine encephalitis virus and West Nile virus. Unplanned urbanization processes close to remnants of the Atlantic forest, such as observed in Sitio dos Pintos, may have contributed to the introduction of Cx. nigripalpus in urban areas.

关 键 词：CULEX quinquefasciatus CULEX nigripalpus dengue OVIPOSITION ATTRACTANT SKATOLE West NILE virus Zika 

分 类 号：Q[生物学]