title: Laboratory evaluation of the development of Aedes aegypti in two seasons: influence of different places and different densities.
abstract: Aedes aegypti is an important vector in Brazil being the main vector of the dengue-fever. This paper employs survival curves to describe the time in days from larvae to adult forms of Aedes aegypti raised, individually and collectively, and compares it during winter and spring when positioned inside and outside a laboratory. The study was conducted in São Vicente, a coastal city in Southeastern Brazil. The lowest water temperature in winter and in spring was 20 °C and the highest was 26 °C in spring. Higher and more stable temperatures were measured in the intra compared to the peri in both seasons. Consequently, larvae positioned in the intra resulted in the lowest median time to develop in the individual and collective experiment (nine and ten days, respectively). At least 25% of the larvae positioned in the intra in the individual experiment in the spring took only seven days to reach adulthood. Sex ratios and the median time development by sex did not show significant differences. These results indicate that efforts to control Aedes aegypti must be continuous and directed mainly to prevent the intra-domiciliary sites that can be infested in a week in order to reduce the human-vector contact.
authors.affiliation: Superintendência de Controle de Endemias (SUCEN), Secretaria de Estado da Saúde São Paulo, São Paulo, SP, Brazil.
authors.forename: Tatiana Forte
authors.initials: TF
authors.lastname: Lopes
authors.affiliation: Superintendência de Controle de Endemias (SUCEN), Secretaria de Estado da Saúde São Paulo, São Paulo, SP, Brazil.
authors.forename: Marcia Moreira
authors.initials: MM
authors.lastname: Holcman
authors.affiliation: Superintendência de Controle de Endemias (SUCEN), Secretaria de Estado da Saúde São Paulo, São Paulo, SP, Brazil.
authors.forename: Gerson Laurindo
authors.initials: GL
authors.lastname: Barbosa
authors.affiliation: Superintendência de Controle de Endemias (SUCEN), Secretaria de Estado da Saúde São Paulo, São Paulo, SP, Brazil.
authors.forename: Maria de Fatima
authors.initials: Mde F
authors.lastname: Domingos
authors.affiliation: Superintendência de Controle de Endemias (SUCEN), Secretaria de Estado da Saúde São Paulo, São Paulo, SP, Brazil.
authors.forename: Rosa Maria Oliveira Veiga
authors.initials: RM
authors.lastname: Barreiros
mesh_terms: D000330:Aedes / Q000145:classification / Q000254:growth & development*; D000818:Animals; D007753:Laboratories; D007814:Larva / Q000254:growth & development; D012621:Seasons; D012744:Sex Ratio; D013696:Temperature; D013997:Time Factors