INVESTIGADORES
GLEISER Raquel Miranda
congresos y reuniones científicas
Título:
Temporal patterns of mosquito abundance in Saint Tammany Parish, Southeast Louisiana.
Autor/es:
GLEISER, R. M.; CAMPANELLA R.; SHELBY B.; C.T. PALMISANO; M.E. HUGH-JONES; WESSON D.M.
Lugar:
Fort Lauderdale, FL., EEUU
Reunión:
Congreso; Entomological Society of America Annual Meeting and Exhibition; 2002
Resumen:
A project was designed
to identify temporal and spatial factors that affect mosquito populations
associated with arboviral transmission. This presentation describes the
seasonal patterns of the mosquito fauna at an Eastern Equine Encephalitis virus
focus in southeast Louisiana. Mosquitoes were collected weekly over a period of
18 months using fiber pots as resting boxes at 16 sites located on the north
shore of Lake Pontchartrain in St Tammany Parish. Landing collections were also
made and rainfall, temperature, humidity, and habitat characteristics were
recorded at the sites. All specimens were tested for virus infection. In all,
33 species were collected. Culex nigripalpus, Psorophora ferox and Cx.
salinarius were the most abundant species. An unusually dry winter in
2000-2001 probably resulted in several species being detected earlier in 2002
than in 2001. Culex nigripalpus was collected in resting pots most of
the year, but no females were collected landing after June, suggesting a change
in host preferences. Culiseta melanura was active most of the year, and
the presence of males in December and January suggest that it may emerge during
winter months. Most Culex species peaked in the spring (April to June),
while Aedes and Ochlerotatus increased in the summer
(July-August) in relation to rainfall patterns. Anopheles was present
most of the year and was more abundant in spring (May-June) and fall (October
to December). Coquillettidia perturbans was present during the summer
but was more abundant in September and October.