Aedes aegypti check for this species in other resources - Aedes albopictus check for this species in other resources - behavior - dispersal - rubidium - dengue - Rio de Janeiro - Brazil"/>
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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 98, No. 2, 2003, pp. 191-198
Bioline Code: oc03054
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 98, No. 2, 2003, pp. 191-198

 en Dispersal of Aedes aegypti check for this species in other resources and Aedes albopictus check for this species in other resources (Diptera: Culicidae) in an Urban Endemic Dengue Area in the State of Rio de Janeiro, Brazil
Nildimar Alves Honório; Wellington da Costa Silva; Paulo José Leite; Jaylei Monteiro Gonç alves; Leon Philip Lounibos & Ricardo Lourenço-de-Oliveira

Abstract

Experimental releases of female Aedes (Stegomyia) aegypti and Aedes (Stegomyia) albopictus were performed in August and September 1999, in an urban area of Nova Iguaçu, State of Rio de Janeiro, Brazil, to estimate their flight range in a circular area of 1,600 m where 1,472 ovitraps were set. Releases of 3,055 Ae. aegypti check for this species in other resources and 2,225 Ae. albopictus check for this species in other resources females, fed with rubidium (Rb)-marked blood and surgically prevented from subsequent blood-feeding, were separated by 11 days. Rb was detected in ovitrap-collected eggs by atomic emission spectrophotometry. Rb-marked eggs of both species were detected up to 800 m from the release point. Eggs of Ae. albopictus were more numerous and more heterogeneously distributed in the area than those of Ae. aegypti . Eggs positively marked for Rb were found at all borders of the study area, suggesting that egg laying also occurred beyond these limits. Results from this study suggest that females can fly at least 800 m in 6 days and, if infected, potentially spread virus rapidly.

Keywords
Aedes aegypti check for this species in other resources - Aedes albopictus check for this species in other resources - behavior - dispersal - rubidium - dengue - Rio de Janeiro - Brazil

 
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