Abstract
Forensic Entomology is the branch of science that uses arthropods as a tool in research when classical forensic methods are insufficient. It is thus that this branch represents an invaluable aid in cases where the human remains are colonized by insects. The most important contribution of forensic entomology is associated with the estimation of the post-mortem interval since some species of the sarcosaphage community are associated with specific stages of the decomposition process. The Artropodofauna cadaverica decomposing organic remains, both animal and human, undergo a series of physical, chemical and biological changes, transforming it into a nutritionally rich but provisional resource, for different taxa of animals. During the decomposition process, the orders Diptera, Coleoptera and Hymenoptera, are predominant in diversity and abundance. The objective of this work is to present the first seasonal study of cadaveric arthropodofauna on experimental porcine models in a forest environment for Southern Uruguay. For this, two specimens of white pig (Sus scrofa L.) were used as biological model. A malaise trap, entomological net and manual capture were used for the capture of adult insects. A total of 2926 adults was collected from three orders and 14 families. The greatest species richness was observed in the summer season and in the lower spring.
Highlights
Entomology is the branch of science that uses arthropods as a tool in research when classical forensic methods are insufficient
Durante el proceso de descomposición, los órdenes Diptera, Coleoptera e Hymenoptera, son predominantes en diversidad y abundancia (Payne, 1965; Dadour et al, 2001; Aballay et al, 2008; Byrd & Castner, 2010)
A preliminary study of forensic entomology in Medellín, Colombia
Summary
El estudio se llevó a cabo en una área semirural de la ciudad de Pando en el departamento de Canelones, Uruguay (34 o 42’37.45”S y 55 o 58’24.27”O). En la Tabla 1 se presenta las temperaturas ambientales con relación a las temperaturas registradas en el interior de los cuerpos, para las cuatro estaciones del año. La duración total del proceso de descomposición fue mayor durante el invierno (76 días), seguido por otoño (72), primavera (48 días), y finalmente con una duración de 35 días para la estación de verano. La fase de descomposición avanzada tuvo una mayor duración en invierno (39 días) y para la fase de restos podemos visualizar una duración de 5 y 9 días para las estaciones de verano y de 17 y 19 para otoño y primavera (Tabla 2). El SIMPER identificó las especies tipificantes de cada estación del año: Chrysomya albiceps Wiedemann, 1819, está asociada a la estación de verano, Calliphora vicina Robineau-Desvoidy, 1830, al invierno, Euspilotus azureus Sahlberg, 1823, a la primavera, Fanniidae sp. El SIMPER identificó las especies tipificantes de cada estación del año: Chrysomya albiceps Wiedemann, 1819, está asociada a la estación de verano, Calliphora vicina Robineau-Desvoidy, 1830, al invierno, Euspilotus azureus Sahlberg, 1823, a la primavera, Fanniidae sp. 1 fue la única especie tipificante para el otoño. (Tabla 5)
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