Studies on entomological monitoring: mosquito species frequency in riverine habitats of the Igarapava Dam, Southern Region, Brazil

Revista do Instituto de Medicina Tropical de São Paulo

Rosa Maria Tubaki²  Regiane Maria Tironi De Menezes²  Rubens Pinto Cardoso Junior¹  Eduardo Sterlino Bergo¹ 

[1] ,Superintendência de Controle de Endemias Laboratório de Entomologia Médica São Paulo SP ,Brazil

关键词: Entomological monitoring;    Aedes scapularis;    Anopheles darlingi;    Anopheles albitarsis s.l.;   

DOI  :  10.1590/S0036-46652004000400009

来源: SciELO

【 摘 要 】

Diversity of mosquito species was evaluated in different habitats before and after the Igarapava reservoir flooding in the Grande River, Southern Cerrado of Brazil. We aimed at verifying changes in these mosquito populations in consequence of the lake formation. Four habitats were selected as sampling stations: peridomiciliary habitat, pasture, "veredas" and gallery forest patch. Bimonthly collections were made with the Shannon trap and human bait, including diurnal, crepuscular and nocturnal period of mosquito activity. The Shannon Index results from the potential vectors were compared using Student t-test. Aedes scapularis, Anopheles darlingi and An. albitarsis senso latu seasonal abundance were described with moving average and compared using chi2 test. There were changes in the mosquito frequency in the habitats, except for the "veredas" that was 13 km away from the catchment area. The altering in mosquito species seasonal abundance suggests breeding places expansion. Diversity indexes can be used to monitor changes in mosquito vector population in environments where abrupt disturbance can alter disease transmission cycles.

【 授权许可】

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