The spatial distribution of Aedes aegypti and Aedes albopictus in a transition zone, Rio de Janeiro, Brazil
Dengue fever has become the most important vector-borne viral disease in Brazil. Human facilitated transport of desiccation-resistant eggs has led to its two most important vectors, Aedes aegypti and Ae. albopictus, becoming widespread. In this paper, we report seasonal and spatial variation in larval abundances of Ae. aegypti and Ae. albopictus across a small-scale transition zone between an urban area and an urban wooded/forested area within Rio de Janeiro, Brazil. We installed 400 ovitraps across 10 sites with different human population densities and vegetation coverage. Eggs and larvae were collected for three weeks during the wet and dry seasons of 2002 and 2003. Ae. albopictus was predominantly found in the forested areas of the study site whereas in the urbanized area Ae. aegypti was more abundant. Both species peaked during the wet season. This distribution pattern, which may reflect adult flight range, may favor the co-occurrence of larvae of these species in a small-scale urban/urban forest transition zone.
Main Authors: | Honório,Nildimar Alves, Castro,Márcia Gonçalves, Barros,Fábio Saito Monteiro de, Magalhães,Mônica de Avelar Figueiredo Mafra, Sabroza,Paulo Chagastelles |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz
2009
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-311X2009000600003 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Preliminary data on the performance of Aedes aegypti and Aedes albopictus immatures developing in water-filled tires in Rio de Janeiro
by: Honório,Nildimar Alves, et al.
Published: (2006) -
Freqüência e distribuição espacial de Aedes aegypti e Aedes albopictus (Diptera, Culicidae) no Rio de Janeiro, Brasil
by: Lima-Camara,Tamara Nunes de, et al.
Published: (2006) -
Freqüência de larvas e pupas de Aedes aegypti e Aedes albopictus em armadilhas, Brasil
by: Honório,Nildimar Alves, et al.
Published: (2001) -
Dispersal of Aedes aegypti and Aedes albopictus (Diptera: Culicidae) in an urban endemic dengue area in the State of Rio de Janeiro, Brazil
by: Honório,Nildimar Alves, et al.
Published: (2003) -
Aedes aegypti e Aedes albopictus no Brasil
by: Tauil,Pedro Luiz
Published: (1989)