One Death, Many Insects’ Species Yet One Insect’s Generation

Ekrakene, T.; Iloba, B. N.

doi:10.3923/je.2011.27.39

Cited by 9 publications

(5 citation statements)

References 2 publications

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“…In general, necrophagous, necrophilous and omnivorous insects are the most important for forensic determinations [4,5] . There are some examples for the application of forensic entomology in criminal investigation all over the world [6][7][8][9][10][11][12][13][14] .…”

Section: Introductionmentioning

confidence: 99%

Identification of insects colonizing carrions of tramadol-intoxicated rabbits and guinea pigs in relation to seasonal variances in Cairo, Egypt

Hamdy

El-Hamouly

Sawaby

et al. 2022

Egyptian Journal of Pure and Applied Science

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This study gives out the identification of insect faunal waves colonizing decomposing carrions of rabbits and guinea pigs treated with certain drug agent (tramadol) in Cairo, Egypt. Each of six rabbits and six guinea pigs is divided into 2 groups, where the first was killed by tramadol and the second group was killed by asphyxia as a control experiment. Generally, decomposition process was observed to have a slower rate in winter. Reaching to the skeletal stage was delayed in tramadolintoxicated carcasses in comparing to the control carcasses. A total of 12966 arthropod individuals (Immature stages and adults) were collected. In concern of class Insecta, 67 species belonging to 6 Insecta orders and 2 Arachnida orders, 37 families and 51 genera were identified from this study during winter and summer seasons. Significantly lower numbers of immatures were observed and collected in the present study from the treated carcasses. The proportions of adult insects were also significantly different in control carcasses when compared with tramadol intoxicated ones in both winter and summer season for both rabbits and guinea pigs. This study provides background for the influence of tramadol on the colonizing wave of arthropod fauna which is of relevance to forensic science. We can conclude that drugs and toxins present in a decomposing body may alter the rate of insect invasion of that body.

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Section: Introductionmentioning

confidence: 99%

Identification of insects colonizing carrions of tramadol-intoxicated rabbits and guinea pigs in relation to seasonal variances in Cairo, Egypt

Hamdy

El-Hamouly

Sawaby

et al. 2022

Egyptian Journal of Pure and Applied Science

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“…The pigs' carrions were deposited on the ground, guarded against vertebrate scavengers with wire mesh cages of size 160mm x100mm x 30mm as cages that permitted entrance of all the insects and other arthropods. There were an inter carcass distances of at least 40m to minimise interruption of flies from adjacent carrions (Ekrakene and Iloba 2011).…”

Section: The Experimental Set-up For the Succession Studiesmentioning

confidence: 99%

Forensic Entomology: Arthropods collected on decomposing pig carrions in Warri, Delta State, Nigeria.

Iloba

Odo

2021

Nig Ann pure App Sci

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A data base of arthropods of forensic importance was collected from pig carrions from 10th June to 10th August 2017 in the Warri city, 3 pigs were killed by cervical dislocation and left to decay while the daily assemblage of arthropods were collected from it. The result showed 5 stages of the carrion decomposition; fresh, bloated, active decay, advance decay and dry decay correspondingly despite that there was only a single sequence of decomposition. Entomofauna groups from 3 orders of Diptera, Coleoptera and Hymenoptera, with ten families were collected during the study while 233 insects were collected at the fresh stage, 324 were collected at the bloat stage, and 328 were recorded at the active decay stage, 405 at the advance decay stage and only 158 at the dry decay stage. The dominance index was high (0.09) at the dry decay stage but low (0.06) at the bloat, active decay and advanced decay stages. Shannon–Wiener index (H) was high (2.91) in the advanced decay stage but was low (2.52) at the dry decay stage. Arthropod from the orders of Diptera and Coleoptera were forensically significant as they used the carcasses for feeding and oviposition and could be used in the estimation of the post mortem interval while the order Hymenoptera used the carrion as extension of their habitat and as predatory ground to the necrophagous groups, it is advocated that more studies be carried out in different seasons using different animal models to create dependable data base of forensically importance arthropods in Warri and its environs.

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“…An amount of variables can influence post-mortem interval (PMI) estimates such as physical, chemical, climate, scavengers, toxins and physical barriers ( [14] finally, there is always insects colonisation and decomposition. The concept of burying a body of a victim of assassination is a trendy physical barrier chosen by murderers who decide to dispose a body, a number of works have observed that these buried bodies decompose at a sluggish pace than those bare to the air [15,16]. These assailants hardly dig the graves deeper than 30 cm and 60 cm, the reason for this is because they don't want to be trapped around their victims' decaying carrions.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Several professionals on carrion ecology have studied the decomposition processes including the successive wave of insects communities on the decomposing bodies using different animal model, Pig known as (Sus scrofa Linn.) is a frequently used animal model in this type of studies although the world [10,18,15].…”

Section: Literature Reviewmentioning

confidence: 99%

Forensic Entomology: an inventory of Arthropods collected on the decomposing pig Carrions during the dry season in Warri, Southern Nigeria

P.E

B.N

2020

IRJST

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Arthropods found on the pig carrions in the dry season in the Warri city at 05°32’34.95"N and 05°44’39.834"E from 10th December 2017 to 10th February 2018 studied. Three pigs were killed and their decomposition monitored for 60 days, arthropods were collected with the aid of sweep nets, brushes, handpicking and pitfall traps while the soil below the decaying pig carrions were searched extensively twice daily for the first week and once daily for the remaining weeks. Data analysis was done by Microsoft excel while graphs were used to demonstrate the frequencies of the arthropods in every phase of decomposition, pie chart was used to elucidate stages of putrefaction and their respective periods. The outcome of the study showed five exclusive stages of decay: fresh, bloated, active decay, advance decay and dry decay correspondingly. The fresh stage took shortest days of 2 as the dry decay took longest days of 41. A total of 1495 arthropods were collected, at the fresh stage, there were 244 arthropods, while 213 were Diptera, only 19 were Hymenoptera and 12 were also Coleoptera but at the bloated stage of decomposition, a total of 273 arthropods were recorded, Diptera were 223 as hymenoptera were 21 and Coleoptera were 29 while at the active decay stage of decomposition there were a total of 437 arthropods, 333 of them were Diptera, 29 were Hymenoptera as 75 were Coleoptera but at the advance decay stage of decomposition, there were a total of 438 arthropods, 225 of them were Diptera, 30 were Hymenoptera as 91 were Coleoptera but at the dry decay stage of decomposition, only 195 arthropods were recorded, 96 of them were Diptera, 21 were Hymenoptera and 78 were Coleoptera in that order, for the reason that the Coleoptera and Diptera used the decaying pig carrions for breeding of their offspring, they could be used in the estimation of the time after death hence are of immense forensic importance while the role of the recorded Hymenoptera could also be of great importance as the tears and wears that they created on the carrions could be cause of error in the estimation of the time of death and their predatory role could also give a fake entomofauna documentation data, more researches of this nature are to be carried out in Warri city and other neighboring communities in order to document reliable database of arthropod of forensic importance in the oil rich city.

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One Death, Many Insects’ Species Yet One Insect’s Generation

Cited by 9 publications

References 2 publications

Identification of insects colonizing carrions of tramadol-intoxicated rabbits and guinea pigs in relation to seasonal variances in Cairo, Egypt

Identification of insects colonizing carrions of tramadol-intoxicated rabbits and guinea pigs in relation to seasonal variances in Cairo, Egypt

Forensic Entomology: Arthropods collected on decomposing pig carrions in Warri, Delta State, Nigeria.

Forensic Entomology: an inventory of Arthropods collected on the decomposing pig Carrions during the dry season in Warri, Southern Nigeria

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