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THE INFLUENCE OF THE AREA OF THE SERRA DA MESA HYDROELECTRIC PLANT, STATE OF GOIÁS, ON THE FREQUENCY AND DIVERSITY OF ANOPHELINES (DIPTERA: CULICIDAE): A STUDY ON THE EFF ECT OF A RESERVOIR
Afiliación
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Díptera. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Díptera. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Díptera. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Díptera. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Díptera. Rio de Janeiro, RJ, Brasil.
Resumen en ingles
Introduction: Bioecological aspects of anophelines (Diptera: Culicidae) near areas under the direct infl uence of the hydroelectric
plant reservoir of Serra da Mesa in Goiás, Brazil, were analyzed. Methods: Samples were collected at the surrounding dam area
during the phases before and after reservoir impoundment. The infl uence of climatic and environmental factors on the occurrence
of Anopheles darlingi, Anopheles albitarsis, Anopheles triannulatus, Anopheles oswaldoi and Anopheles evansae was assessed
using Pearson’s correlations with indicators for richness and diversity as well as the index of species abundance (ISA) and
the standardized index of species abundance (SISA). Results: The highest anopheline density occurred during the phase after
fi lling the tank; however, no direct correlation with the climatic factors was observed during this stage. The reservoir formation
determined the incidence of the anopheline species. An. darlingi was the predominant species (SISA = 1.00). Conclusions:
The signifi cant difference (p < 0.05) observed between the species incidence during the different reservoir phases demonstrates
the environmental effect of the reservoir on anophelines.
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