A preliminary study on decomposition and seasonality of insect succession of decomposing rabbit carcasses at El-Sharkia Governorate, Egypt

IF 2.5 Q2 MULTIDISCIPLINARY SCIENCES Beni-Suef University Journal of Basic and Applied Sciences Pub Date : 2024-10-04 DOI:10.1186/s43088-024-00561-2

El-Sayed H. Shaurub, Abeer M. Salem, Eman E. Zaher

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Abstract

Background

Studying insect succession on carcasses is important in estimating the postmortem interval. This study aims to identify the decomposition stages of decomposing rabbit carcasses and to find out the relationship between seasonal variations and abundance of insects colonizing rabbit carcasses at El-Sharkia Governorate, Egypt.

Methods

Three domestic rabbits (weighing 1300 g each) were killed by a sharp knife. The carcasses were exposed to the sun, left to decompose and inspected twice daily at 6-h intervals to collect insects. Maggots were collected and reared.

Results

The rabbit carcasses underwent four decomposition stages: fresh, bloat, decay and dry stages. The identified families and their respective collected species included three dipteran families: Calliphoridae (Lucilia sericata, Chrysomya megacephala, and Chrysomya albiceps), Sarcophagidae (Sarcophaga argyrostoma) and Muscidae (Musca domestica and Synthesiomyia nudiseta), three coleopteran families. Histeridae (Saprinus semistriatus), Cleridae (Necrobia rufipes) and Dermestidae (Dermestes frischii and Attagenus gloriosus) and three hymenopteran families: Chalcididae (Brachymeria femorata), Vespidae (Vespa orientalis) and Formicidae (Monomorium sp.). Carrion fauna was dominated by dipteran and coleopteran species, with calliphorid and sarcophagid flies found to play a significant role in carrion consumption process.

Conclusion

The succession pattern and decomposition rate were season dependent. The information collected may help establish the basic database for entomological forensic investigations in the future.

Graphical abstract

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关于埃及沙尔基亚省腐烂兔尸的分解和昆虫演替季节性的初步研究

背景研究尸体上的昆虫演替对估计死后间隔期非常重要。本研究旨在确定腐烂兔子尸体的分解阶段，并找出埃及沙尔基亚省兔子尸体上昆虫定殖的季节变化与昆虫数量之间的关系。将兔子尸体暴露在阳光下，任其腐烂，每天检查两次，每次间隔 6 小时，以收集昆虫。结果兔子尸体经历了四个腐烂阶段：新鲜阶段、膨胀阶段、腐烂阶段和干燥阶段。已确定的昆虫科及其各自采集的物种包括三个双翅目昆虫科：Calliphoridae (Lucilia sericata, Chrysomya megacephala, and Chrysomya albiceps), Sarcophagidae (Sarcophaga argyrostoma) and Muscidae (Musca domestica and Synthesiomyia nudiseta)，三个鞘翅目科。Histeridae (Saprinus semistriatus), Cleridae (Necrobia rufipes) and Dermestidae (Dermestes frischii and Attagenus gloriosus) 和三个膜翅目：蝉科（Brachymeria femorata）、蝶科（Vespidae）和蚁科（Monomorium sp.）。腐肉动物群以双翅目和鞘翅目物种为主，其中茧蝇和石蝇在腐肉消耗过程中发挥了重要作用。收集到的信息有助于为今后的昆虫学法医调查建立基础数据库。

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来源期刊

Beni-Suef University Journal of Basic and Applied Sciences MULTIDISCIPLINARY SCIENCES-

CiteScore

2.60

自引率

0.00%

发文量

期刊介绍： Beni-Suef University Journal of Basic and Applied Sciences (BJBAS) is a peer-reviewed, open-access journal. This journal welcomes submissions of original research, literature reviews, and editorials in its respected fields of fundamental science, applied science (with a particular focus on the fields of applied nanotechnology and biotechnology), medical sciences, pharmaceutical sciences, and engineering. The multidisciplinary aspects of the journal encourage global collaboration between researchers in multiple fields and provide cross-disciplinary dissemination of findings.