SciELO - Scientific Electronic Library Online

vol.54 issue3Polychaeta (Annelida) associated with Thalassia testudinum in the northeastern coastal waters of VenezuelaDistribución espacio-temporal de la meiofauna béntica en cuatro playas del Litoral Norte de la Habana author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Revista de Biología Tropical

On-line version ISSN 0034-7744Print version ISSN 0034-7744


MICIELI, María V; GARCIA, Juan J; ACHINELLY, María F  and  MARTI, Gerardo A. Dinámica poblacional de los estadios inmaduros del vector del dengue Aedes aegypti (Diptera: Culicidae): un estudio longitudinal (1996-2000). Rev. biol. trop [online]. 2006, vol.54, n.3, pp.979-983. ISSN 0034-7744.

Population dynamics of the immature stages of Aedes aegypti (Diptera: Culicidae), vector of dengue: a longitudinal study (1996-2000). A four year study was conducted on a natural population of immature stages of Aedes aegypti after the re-invasion of Argentina by this vector in 1987. Thirty six plastic containers with 700 ml of dechlorinated water were placed in the La Plata Zoological Garden, La Plata, Argentina. A strip of filter paper around each container was added to facilitate egg counting. Eggs, larvae and pupae were counted weekly in each container from September, 1996 to August, 2000. After egg counting, papers were submerged to facilitate egg hatching and a new paper was placed in each container. Presence of A. aegypti immature stages was recorded from December-January to June during each of the four years of this study. In 1997, 13 105 eggs, 7 978 larvae and 1 476 pupae were registered with 54.7 % positive containers; during 1998, 8 194 eggs, 668 larvae and 142 pupae were recorded with 28.3 % positive containers; 13 510 eggs, 3 690 larvae and 743 pupae were registered during 1999 with 56.7 % positive containers; and 16 327 eggs, 4 669 larvae and 715 pupae during 2000 with 59.3 % of containers with presence of A. aegypti. Egg number and hatching rate were drastically reduced in 1998 when temperatures from December to May were 1 to 2.5 ºC lower than the other years of this study. These colder than usual temperatures in the summer of 1998 were a consequence of the El Niño event. Rev. Biol. Trop. 54 (3): 979-983. Epub 2006 Sept. 29.

Keywords : Aedes aegypti; immature population dynamics; climatic change; ovitraps; Argentina.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License