Comparación de la composición y riqueza específica de mosquitos inmaduros (Diptera: Culicidae) en cuerpos de agua permanentes y efímeros de Buenos Aires

BURRONI, N.; TORRES, P. L. M.; PEREZ LOINAZE, V.; FISCHER, S.; SANCHEZ, V.; MARINONE, M. C.; SCHWEIGMANN, N.

Vaquerías, Valle Hermoso, Córdoba, Argentina

Jornada; ACTAS II Jornadas Regionales sobre Mosquitos 2001; 2002

Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba. Centro de Investigaciones Entomológicas de Córdoba. Facultad de Ciencias Médicas

It was studied the specific composition, the richness and the relative abundances of the present culicids comparatively in two kinds of contrasting aquatic environments (ephemeral and permanent) in two green spaces markedly different in the city of Buenos Aires. Five species were found in both kinds of environments: Ochlerotatus albifiasciatus, Culex eduardoi, Culex maxi, Culex pipiens, and Culex tatoi. One species was exclusive to the ephemeral rain pools (Psorophora varipes) and seven other species were only recorded in permanent ponds: Culex chidesteri, Culex saltanensis, Uranotaenia geometrica, Uranotaenia nataliae, Mansonia titillans, Mansonia indubitans, and Aedeomyia squamipennis. The specific richness attained higher values in the ponds than in the rain pools. This fact may be related to a higher availability of refuges, microhabitat variety, water permanence, and lower level of interference in the permanent environments. Floodwater species and peridomestic generalists were dominant in the ephemeral habitats. The larvae of Anopheles sp only prevailed in ephemeral pools, whereas those of Culex (Melonoconion) sp were exclusively collected in the ponds. The environmental differences would he important factors in structuring the taxocoenosis of culicids in permanent and ephemeral water bodies.