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Tree holes as larval habitats for Aedes aegypti in urban, suburban and forest habitats in a dengue affected area

Published online by Cambridge University Press:  21 July 2015

C. Mangudo ,
J.P. Aparicio  and
R.M. Gleiser
C. Mangudo
Affiliation:
Instituto de Investigaciones en Energía No Convencional (INENCO, UNSa- CONICET), Universidad Nacional de Salta, Av. Bolivia 5150, A4400FVY, Salta, Argentina Instituto de Investigaciones en Enfermedades Tropicales, Sede Regional Orán, Universidad Nacional de Salta, Alvarado 751 Orán, 4530 Salta, Argentina
J.P. Aparicio
Affiliation:
Instituto de Investigaciones en Energía No Convencional (INENCO, UNSa- CONICET), Universidad Nacional de Salta, Av. Bolivia 5150, A4400FVY, Salta, Argentina Instituto de Investigaciones en Enfermedades Tropicales, Sede Regional Orán, Universidad Nacional de Salta, Alvarado 751 Orán, 4530 Salta, Argentina Mathematical, Computational and Modeling Sciences Center, Arizona State University, PO Box 871904, Tempe, AZ 85287-1904, USA
R.M. Gleiser*
Affiliation:
Centro de Relevamiento y Evaluación de Recursos Agrícolas y Naturales-IMBIV (CONICET-UNC), Facultad de Ciencias Agropecuarias, Av. Valparaíso sn (5016) Córdoba, Argentina Cátedra de Ecología, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Av. Vélez Sársfield 299 (5000) Córdoba, Argentina
*
*Author for correspondence Phone: +54 (0351) 4334105/16/17 Fax: +54 (0351) 4334118 E-mail: [email protected]
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Abstract

Aedes aegypti (L.) (Diptera: Culicidae), the main vector of dengue and urban yellow fever in the world, is highly adapted to the human environment. Artificial containers are the most common larval habitat for the species, but it may develop in tree holes and other phytotelmata. This study assessed whether tree holes in San Ramón de la Nueva Orán, a city located in subtropical montane moist forest where dengue outbreaks occur, are relevant as larval habitat for Ae. aegypti and if the species may be found in natural areas far from human habitations. Water holding tree holes were sampled during 3 years once a month along the rainy season using a siphon bottle, in urban and suburban sites within the city and in adjacent forested areas. Larvae and pupae were collected and the presence and volume of water in each tree hole were recorded. Finding Ae. aegypti in forested areas was an isolated event; however, the species was frequently collected from tree holes throughout the city and along the sampling period. Moreover, larvae were collected in considerably high numbers, stressing the importance of taking into account these natural cavities as potential reinfestation foci within dengue control framework.

Keywords

Culicidaelandscapephytotelmatapopulation ecologyvector
Type
Research Papers
Information
Bulletin of Entomological Research , Volume 105 , Issue 6 , December 2015 , pp. 679 - 684
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Copyright
Copyright © Cambridge University Press 2015 

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