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Abstract:

The hygropreference of larvae and adults of the reduviid bug Triatoma infestans (Klug) was investigated along relative humidity (RH) gradients established by means of different salt solutions, as well as by H2SO4 dilutions. Both larvae and adults preferred to remain at or near 0% RH. This preference was similar for bugs reared in the laboratory under different conditions, and for those collected in the field. Several assays to control for both experimental asymmetries along the gradient and the effects of thigmotactic behaviour permit exclusion of these factors as responsible for the behaviour of the insects. The preferred RH did not vary with the time of the day or fasting. Larval insects exhibited a significant tendency to remain close to 0% RH at the time of ecdysis. The same preference was exhibited to ovipositing females. The success of ecdysis and egg hatching were measured at different RH values ranging from 0 to 75%. No differences were found between groups; eclosion success ranged from 86 to 94% for egg-hatching and from 89.5 to 95% for ecdysis, at all RHs tested. Results agree with high saturation deficits found along the geographical areas exhibiting the highest prevalence of T. infestans. However, they are in contradiction with values usually recommended to rear this species in the laboratory. The adaptive value of the hygropreference is discussed. © 1994.

Registro:

Documento: Artículo
Título:Effects of relative humidity on the haematophagous bug Triatoma infestans: Hygropreference and eclosion success
Autor:Roca, M.J.; Lazzari, C.R.
Filiación:Departamento de Biologia, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Palabras clave:Chagas' disease; Eclosion; Orientation; Relative humidity; Triatominae; Triatoma infestans
Año:1994
Volumen:40
Número:10
Página de inicio:901
Página de fin:907
DOI: http://dx.doi.org/10.1016/0022-1910(94)90024-8
Título revista:Journal of Insect Physiology
Título revista abreviado:J. Insect Physiol.
ISSN:00221910
CODEN:JIPHA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221910_v40_n10_p901_Roca

Referencias:

  • Ampleford, Steel, Circadian control of ecdysis in Rhodnius prolixus (Hemiptera) (1982) J. comp. Physiol. A, 147, pp. 281-286
  • Constantinou, Circadian rhythms in insects (1979) PhD Thesis University of London, p. 270
  • Curto de Casas, Análisis geográfico de la endemia Chagas. Indicadores climáticos (1983) Chagas, 1, pp. 73-79
  • Curto de Casas, Problemática geográfica de la endemia Chagásica y técnicas para su estudio (1985) Factores Biológicos y Ecológicos en la Enfermedad de Chagas, 1 Tomo, pp. 31-47. , Carcavallo, Rabinovich, Tonn, Servico Nacional de Chagas de la República Argentina
  • Guerenstein, Factores condicionantes de la ingestion en dos especies de Triatominae (1992) Diploma Thesis, p. 33. , Univ. Buenos Aires
  • Hanke, Hamdorf, Horn, Schlieper, (1977) Praktikum der Zoophysiologie, , Gustav Fisher Verlag, Stuttgart
  • Lazzari, Temperature preference in Triatoma infestans (Hemiptera: Reduviidae) (1991) Bull. ent. Res., 81, pp. 273-276
  • Lazzari, Circadian rhythm of egg hatching in Triatoma infestans (Hemiptera: Reduviidae) (1991) J. med. Ent., 28, pp. 740-741
  • Lent, Wygodzinsky, Revision of the Triatominae (Hemiptera, Reduviidae), and their significance as vectors of Chagas' disease (1979) Bull. Am. Mus. Nat. Hist., 163, pp. 125-520
  • Luz, Zur Pathogenität von Beauveria bassiana (Fungi imperfecti) gegenüber mehrenen Raubwanzenarten (Reduviidae; Triatominae) und Einfluß der relativen Luftfeuchtigkeit auf die Infektion von Rhodnius prolixus (1989) Diplomarbeit Universität Tübingen, p. 44
  • Núñez, Food source orientation and activity in Rhodnius prolixus Stål (Hemiptera Reduviidae) (1982) Bulletin of Entomological Research, 72, pp. 252-262
  • Núñez, Behavior of Triatominae bugs (1987) Chagas' Disease Vectors, 2, pp. 1-29. , R.R. Brenner, A.M. Stoka, CRC Press, FL
  • Núñez, Lazzari, Rearing of Triatoma infestans Klug (Het Reduviidae) in the absence of a live host I Some factors affecting the artificial feeding (1990) Journal of Applied Entomology, 109, pp. 87-92
  • Núñez, Segura, Rearing of Triatominae (1987) Chagas' Disease Vectors, 2, pp. 31-40. , R.R. Brenner, A.M. Stoka, CRC Press, FL
  • Wiesinger, Die Bedeutung der Umweltfaktoren für den Saugakt von Triatoma infestans (1956) Acta Tropica, 13, pp. 97-141
  • Wigglesworth, Gillett, The function of the antennae in Rhodnius prolixus (Hemiptera) and the mechanism of orientation to the host (1934) J. exp. Biol., 11, pp. 120-138
  • Zeledon, Rabinovich, Chagas' disease an ecological appraisal with special emphasis on its insect vectors (1981) Annual Review of Entomology, 26, pp. 101-133

Citas:

---------- APA ----------
Roca, M.J. & Lazzari, C.R. (1994) . Effects of relative humidity on the haematophagous bug Triatoma infestans: Hygropreference and eclosion success. Journal of Insect Physiology, 40(10), 901-907.
http://dx.doi.org/10.1016/0022-1910(94)90024-8
---------- CHICAGO ----------
Roca, M.J., Lazzari, C.R. "Effects of relative humidity on the haematophagous bug Triatoma infestans: Hygropreference and eclosion success" . Journal of Insect Physiology 40, no. 10 (1994) : 901-907.
http://dx.doi.org/10.1016/0022-1910(94)90024-8
---------- MLA ----------
Roca, M.J., Lazzari, C.R. "Effects of relative humidity on the haematophagous bug Triatoma infestans: Hygropreference and eclosion success" . Journal of Insect Physiology, vol. 40, no. 10, 1994, pp. 901-907.
http://dx.doi.org/10.1016/0022-1910(94)90024-8
---------- VANCOUVER ----------
Roca, M.J., Lazzari, C.R. Effects of relative humidity on the haematophagous bug Triatoma infestans: Hygropreference and eclosion success. J. Insect Physiol. 1994;40(10):901-907.
http://dx.doi.org/10.1016/0022-1910(94)90024-8