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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 90, No. 5, 1995, pp. 639-644
Bioline Code: oc95130
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 90, No. 5, 1995, pp. 639-644

 en Daily pattern of flight activity of Aedes albifasciatus in central Argentina
Francisco F Luduena Almeida; David & Gorla

Abstract

Aedes albifasciatus is an important common mosquito in Central
Argentina. It is a confirmed vector of the Western Equine
Encephalitis and is responsible for loss of milk production in
dairy cattle during peak populations. This paper reports the
flight activity pattern of Ae. albifasciatus for different
seasons, in the southern coast of the Mar Chiquita Lake
(central Argentina). Data were collected by sampling two sites
between 1992 and 1993 with CDC traps and human-bait captures.
Adult mosquito population density, estimated by CDC trapping
and human-bait, were highly correlated. However, when compared
to other species, the proportion of Ae. albifasciatus was
higher in human-bait collections. Adult female populations
were active only when temperature were higher than 6 C. Two
daily biting peaks were observed (dusk and dawn) during the
spring, summer and autumn, and only one peak during winter
(around 15:00 pm). Adult abundance was significantly
correlated (R2=0.71; p{0.01) with temperature and
illumination.

Keywords
flight activity - Culicidae - Aedes albifasciatus - abundance estimation

 
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