Efecto de los parámetros físicos en la sucesión cadavérica de dípterofauna en el Bosque Los Samanes (Guayaquil - Ecuador).
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2021-09
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Facultad de Ciencias Naturales. Universidad de Guayaquil
Resumen
La entomología forense es una ciencia médico-legal, que aporta información del intervalo post - mortem de un cuerpo, a través del análisis de las comunidades saprófagas; sin embargo, a nivel local, los estudios correspondientes a este tópico son limitados. Por este motivo, esta investigación tiene como finalidad analizar el efecto de parámetros físicos en la sucesión cadavérica de dípterofauna de importancia forense, asociada a un biomodelo pequeño, en un bosque seco de Guayaquil. Para ello, se construyeron tres trampas de Schoenly, las cuales fueron instaladas en tres puntos de muestro diferenciadas por sus características físicas (sombra parcial, sombra completa y sin sombra). Se recolectaron 2 564 individuos en total, siendo Chrysomyia albiceps el ejemplar más abundante en la mayoría de los estados de descomposición, mientras que, el sitio con sombra parcial presentó la mayor diversidad específica. La temperatura y la humedad no influyeron en el tiempo de descomposición del biomodelo; por otro lado, el factor sombra fue la única variable categórica que intervino directamente en la abundancia de las especies. Se concluyó que el factor sombra tiene gran importancia en la composición y en el dinamismo de la sucesión cadavérica.
Forensic entomology is a medico-legal science, which provides information on the post-mortem interval of a Corpse, through the analysis of saprophagous communities; however, at the local level, studies on this topic are limited. For this reason, this research aims to analyze the effect of physical parameters on the cadaveric succession of diptera of forensic importance, associated with a small biomodel, in a dry forest of Guayaquil. To do this, three Schoenly traps were built, which were installed in three show points differentiated by their physical characteristics (partial shadow, full shadow, and no shadow). A total of 2 564 individuals were collected, with Chrysomyia albiceps being the most abundant specimen in most states of decomposition, while the site with partial shade presented the greatest specific diversity. Temperature and humidity did not influence the decomposition time of the biomodel; on the other hand, the shadow factor was the only categorical variable that directly intervened in the abundance of species. It was concluded that the shadow factor has great importance in the composition and dynamism of the cadaveric succession.
Forensic entomology is a medico-legal science, which provides information on the post-mortem interval of a Corpse, through the analysis of saprophagous communities; however, at the local level, studies on this topic are limited. For this reason, this research aims to analyze the effect of physical parameters on the cadaveric succession of diptera of forensic importance, associated with a small biomodel, in a dry forest of Guayaquil. To do this, three Schoenly traps were built, which were installed in three show points differentiated by their physical characteristics (partial shadow, full shadow, and no shadow). A total of 2 564 individuals were collected, with Chrysomyia albiceps being the most abundant specimen in most states of decomposition, while the site with partial shade presented the greatest specific diversity. Temperature and humidity did not influence the decomposition time of the biomodel; on the other hand, the shadow factor was the only categorical variable that directly intervened in the abundance of species. It was concluded that the shadow factor has great importance in the composition and dynamism of the cadaveric succession.
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ENTOMOLOGÍA FORENSE, SAPRÓFAGOS, INTERVALO POSTMORTEM, FACTORES AMBIENTALES