Ecology of sandflies (Diptera: Psychodidae) in a restricted focus of cutaneous leishmaniasis in Northern Venezuela: III. Seasonal fluctuation

Memórias do Instituto Oswaldo Cruz

M. Dora Feliciangeli¹ 

[1] ,Universidad de Carabobo Facultad de Ciencias de la Salud Centro de Investigaciones BiomédicasMaracay,Venezuela

关键词: ecology of sandflies;    cutaneous leishmaniasis;    northern Venezuela;    seasonal fluctuation;    ecologia de flebótomos;    leishmaniose tegumentar;    norte da Venezuela;    flutuação estacional;   

DOI  :  10.1590/S0074-02761987000200003

来源: SciELO

【 摘 要 】

A one year-long study (March 1979-March 1980) was carried out at San Esteban, an endemic focus of cutaneous leishmaniasis in Northern Venezuela, with the aim of observing the seasonal fluctuation of the local phlebotomine sandflies species. The influence of climatic factors (temperature, relative humidity and rainfall) on population dynamics was analyzed in three collecting sites - a house, a peridomestic area and a sylvatic region. Among anthropophilic species, L. panamensis behaved as a wetseason species, the mean minimum relative humidity being the critical factor influencing the total number of individuals. When the population density of this fly decreased, it was successfully replaced by L. ovallesi, a dry-season species. On the other hand, seasonal variations of L. gomezi were more strongly affected by the temperature.

【 授权许可】

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