Populations of larvae of Anopheles spp. in natural breeding sites in Western Venezuela, an area of refractory malaria

Author:

Rojas Eliana1,Brown Eric1,Rosas Clistenes1,Scorza José V.1

Affiliation:

1. Centro de Investigacions José W. Torrealba

Abstract

Studies have been un dertaken into on the diversity and relative abundance of larvae of Anopheles (Nyssorhynchus) spp. in 22 permanent or temporary pools in an area of 70 km² in the eastern piedmont of the Venezuela Andes, between the mountains and the plains, an area in which malaria is refractory and A. nuñeztovari is present. Twelve species were identified, the most frequent, abundant and sympatric being A. triannulatus, A. albitarsis, A. nuñeztovari, A. oswaldoi and A. strodei. The samples from the permanent pools showed greater diversity of species and greater numbers of larvae than the samples from the temporary pools. The existence of the same larval associations in pools of other localities in the eastern piedmont of the Venezuelan Andes suggests the possibility of the making an ecological map of the breeding sites of A. nuñeztovari and for these anophelines in a region extending for 430 km.

Publisher

FapUNIFESP (SciELO)

Subject

Public Health, Environmental and Occupational Health

Reference21 articles.

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2. A genetic study of the malaria vector Anopheles nuñeztovari from western Venezuela;CONN J.;J. Amer. Mosq. Contr. Assoc.,1990

3. Distribuición geográfica y datos taxonómicos de los anofelinos de Venezuela;COVA-GARCIA P.,1951

4. Clave para larvas de anofelinos de Venezuela;COVA-GARCIA P.;Bol. venez. Dir.Malar. Saneam. Amb.,1977

5. Notas sobre a distribuição e a biologia dos anofelinos das regiões nordestina e amazônica do Brasil;DEANE L.M.;Rev. Fund. SESP,1948

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