Daily pattern of flight activity of Aedes albifasciatus in central Argentina

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 differ...

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Bibliographic Details
Published in:Memórias do Instituto Oswaldo Cruz 1995-10, Vol.90 (5), p.639-644
Main Authors: Almeida, F F, Gorla, D E
Format: Article
Language:English
Subjects:
abundance estimation
Aedees albifasciatus
Aedes - physiology
Animals
Argentina
Behavior, Animal
Culicidae
Diptera
Female
flight activity
flight activity - Culicidae - Aedes albifasciatus - abundance estimation
PARASITOLOGY
Population Density
Regression Analysis
Seasons
Temperature
Time Factors
TROPICAL MEDICINE
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Summary: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.
ISSN:1678-8060
0074-0276
0074-0276
1678-8060
DOI:10.1590/s0074-02761995000500020