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handle: 10261/172519
[ES] En este trabajo se dan a conocer, la composición específica y aspectos de la ecología de una taxocenosis de Calliphoridae de un habitat eusinantrópico de la ciudad de Avellaneda, provincia de Buenos Aires, Argentina. Durante un año completo se realizaron capturas mensuales y horarias, desde las 10,30 h. hasta las 16,30 h., entre noviembre de 1986 y octubre de 1987. Las capturas se efectuaron con red entomológica cuando las moscas ocupaban el cebo utilizado, consistente en carne vacuna («bofe») en estado de descomposición, que era expuesta durante 30 minutos a la colonización de aquellas. En cada ocasión se tomaron muestras simultáneas en dos áreas, una soleada y otra sombreada. Se estimaron proporción de sexos y grado de heliofilia de todas las especies registradas y se calcularon correlaciones entre abundancia total y específica, y temperatura ambiente. Los resultados obtenidos reflejan una pobre riqueza específica, una tendencia general de predominio de hembras sobre machos, y en las especies dominantes (Calliphora vicina, Chrysomya albiceps, y Chrysomya megacephala), con excepción de Phaenicia sericata, un alto grado de heliofilia. Phaenicia sericata parece ser la especie clave de la taxocenosis estudiada. Chrysomya rufifacies es citada por primera vez para la Argentina.
[EN] A blow flies taxocoenosis from an eusynanthropic habitat located in the city of Avellaneda, Buenos Aires, Argentina, was studied. Monthly captures were carried on hourly from 10.30 am to 4,30 pm, during a whole year, from November 1986 to October 1987. Species were netted while lying on the bait composed by lung rotten beef which was exposed to flies colonization during 30 minutes. Shaded and sunny sites were sampled every hour simultaneously. Statistical analysis were done to estimate sex ratio, heliophyly of the studied populations, as well as correlations between seasonal changes in abundance and temperatura. Obtained results showed a low species richness, a prevalent occurrence of females in most species, and a high degree of heliophyly of the co-dominant species, Calliphora vicina, Chrysomya albiceps, and Chrysomya megacephala. Phaenicia sericata, a key species of the studied community, didn't show any preference either for shaded or for sunny places. Chrysomya rufifacies is recorded for the first time for Argentina.
Peer reviewed
Calliphoridae, Diptera
Calliphoridae, Diptera
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