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Insect succession pattern on decomposing pig carcasses in Tasmania: a summer study

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Magni, P, Zwerver, M and Dadour, IR 2019 , 'Insect succession pattern on decomposing pig carcasses in Tasmania: a summer study' , Papers and Proceedings of the Royal Society of Tasmania, vol. 153 , pp. 31-38 , doi: 10.26749/rstpp.153.31.

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Abstract

Insect succession has been studied around the world using the predictable and mostly sequential arrival pattern of different insect species that are attracted to a decomposing carcass. In cases of suspicious death of humans and animals, carrion insects may be used to assist in crime scene reconstruction. The present research represents the first study in forensic entomology to be undertaken in Tasmania, investigating insect succession patterns on decomposing pig carcasses and providing a preliminary database of forensically important insects. Six pig carcasses were placed in two contrasting locations (rural and urban) in northern Tasmania. Insect successional waves were recorded over a 40-day study during the austral summer season. Results showed that decomposition rates and insect assemblages varied between each location. Eleven insect taxa, representing nine families, were identified in association with the decomposition of the pig carcasses at both localities. Blowflies present on the pig carcasses throughout the decomposition process were Calliphora stygia Malloch (Diptera: Calliphoridae) at both sites and Lucilia sericata (Meigen) at the urban site only. These preliminary results will provide useful information in any future casework involving human remains and associated insect material in Tasmania.

Item Type: Article
Authors/Creators:Magni, P and Zwerver, M and Dadour, IR
Keywords: decomposition, Tasmania, insect succession, forensic entomology, blowflies
Journal or Publication Title: Papers and Proceedings of the Royal Society of Tasmania
ISSN: 0080-4703
DOI / ID Number: 10.26749/rstpp.153.31
Copyright Information:

Copyright The Royal Society of Tasmania

Collections: Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
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