Seleccion de habitat de oviposicion en Aedes aegypti (Diptera: Culicidae) mediante estimulos fisicos
Autor(es): Badano, E. I.; Regidor, H. A.
Resumo: Aedes aegypti (Diptera: Culicidae) can develop its aquatic phase in artificial containers that females detect and evaluate through physical variables. The objective of the present study was to analyze the effect of color (black, red, green and white) and container surface (177 cm super(2) and 57 cm super(2)) on the oviposition response of Aedes aegypti under two light environments (sunlight and 90% shade). Two factorial experiments were performed combining the different levels of colors and diameters in each light situation. Significant differences were detected among colours in both light situations. Under sunlight, black and red traps showed differences with white and green traps, while under shadow black and red traps differed from green traps. Both trap surfaces differed only under the shadow situation, where the oviposition response was higher for the 177 cm super(2) traps. Treatments with highest oviposition response in the sunlight were black and red traps of 177 cm super(2), and no differences were observed between them. Under shadow, traps with greater oviposition response were black traps of 177 cm super(2) followed by red and white traps with the same surface. These results suggest that the color effect would be stronger than the surface effect and the response of Aedes aegypti to colours would depend on the light environment of the traps.
Palavras-Chave: Biological vectors; Containers; Human diseases; Microhabitats; Light stimuli; Habitat selection; Risks; Public health; Light effects; Site selection; Physical properties; Colour; Surface properties; Viral diseases; Breeding sites; Shading; Aquatic insects; Oviposition; Coloration; Dengue virus; Aedes aegypti; Culicidae
Imprenta: Ecologia Austral, v. 12, n. 2, p. 129-134, 2002.
Descritores: Aedes aegypti - Virus ; Aedes aegypti - Dengue ; Aedes aegypti - Public health
Data de publicação: 2002
