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<p>Burnt corpses present a challenging situation for forensic pathologists in identifying human remains and determining the post-mortem interval (PMI). In burnt cases, decomposition can be altered, and traditional methods may not be applicable in PMI estimation. Therefore, entomofaunal succession and colonization patterns on such remains can provide a solution. The present study was conducted in Haryana, India to investigate the differences in the decomposition duration and succession pattern of entomofauna on burnt and unburnt pig carcasses on terrestrial surface in the summer and winter seasons for two consecutive years (2022-23 and 2023-24). A total of four pig carcasses were used in each season. Three pig carcasses were burnt at different levels (level 1, 2, and 3) according to Crow-Glassman Scale (CGS), while one was left unburnt (Control). The decomposition duration differences between burnt and unburnt pig carcasses were found to be non-significant during the summer, while they were significant (<i>p</i> &lt; 0.05) during the winter season. Insect species associated with burnt and unburnt pig carcasses were found to be variable in both seasons. During summers, Dipteran species <i>Sarcophaga haemorrhoidalis</i> (Fallen) was the earliest visitor on all the burnt carcasses, while <i>Chrysomya megacephala</i> (Fabricius) was the earliest visitor on the control carcass. During winters, <i>Chrysomya megacephala</i> was the earliest visitor on all the burnt carcasses, whereas <i>Musca domestica</i> (Linnaeus) was found to be the first one on the control carcass. Coleopteran species <i>Dermestes maculatus</i> (De Geer) and <i>Necrobia rufipes</i> (Fabricius) were the common visitors on all the carcasses in both seasons. The magnitude of the burning resulted in changes in the eating behaviour of insects on burnt carcasses.</p>

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Decomposition and entomofaunal succession pattern of burnt pig carcasses in a semi-arid part of India

  • 期刊论文

  • 发表日期：

    2026年2月11日

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  • Ravi Tanwar,
  • Sapna Sharma,
  • Parul Sharma,
  • Tapeshwar Bhardwaj

摘要

Burnt corpses present a challenging situation for forensic pathologists in identifying human remains and determining the post-mortem interval (PMI). In burnt cases, decomposition can be altered, and traditional methods may not be applicable in PMI estimation. Therefore, entomofaunal succession and colonization patterns on such remains can provide a solution. The present study was conducted in Haryana, India to investigate the differences in the decomposition duration and succession pattern of entomofauna on burnt and unburnt pig carcasses on terrestrial surface in the summer and winter seasons for two consecutive years (2022-23 and 2023-24). A total of four pig carcasses were used in each season. Three pig carcasses were burnt at different levels (level 1, 2, and 3) according to Crow-Glassman Scale (CGS), while one was left unburnt (Control). The decomposition duration differences between burnt and unburnt pig carcasses were found to be non-significant during the summer, while they were significant (p < 0.05) during the winter season. Insect species associated with burnt and unburnt pig carcasses were found to be variable in both seasons. During summers, Dipteran species Sarcophaga haemorrhoidalis (Fallen) was the earliest visitor on all the burnt carcasses, while Chrysomya megacephala (Fabricius) was the earliest visitor on the control carcass. During winters, Chrysomya megacephala was the earliest visitor on all the burnt carcasses, whereas Musca domestica (Linnaeus) was found to be the first one on the control carcass. Coleopteran species Dermestes maculatus (De Geer) and Necrobia rufipes (Fabricius) were the common visitors on all the carcasses in both seasons. The magnitude of the burning resulted in changes in the eating behaviour of insects on burnt carcasses.