DIVERSITY AND SUCCESSION PATTERN OF FORENSICALLY IMPORTANT DIPTERAN SPECIES ASSOCIATED WITH ORGANOPHOSPHATE PESTICIDESINTOXICATED RAT CARCASSES IN SARAWAK, MALAYSIA
This research aimed to study the decomposition process of organophosphate-intoxicated rat carcasses and the succession pattern of associated insects at a secondary forest in Kuching, Sarawak, Malaysia. The animal model, Rattus norvegicus, weighing around 180-200g were assigned in T1 and T2 groups an...
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Faculty of Science and Technology (FST) for the Unversiti Kebangsaan Malaysia (UKM)
2024
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my.unimas.ir.446202024-04-23T06:41:28Z http://ir.unimas.my/id/eprint/44620/ DIVERSITY AND SUCCESSION PATTERN OF FORENSICALLY IMPORTANT DIPTERAN SPECIES ASSOCIATED WITH ORGANOPHOSPHATE PESTICIDESINTOXICATED RAT CARCASSES IN SARAWAK, MALAYSIA Nor Aliza, Abdul Rahim Marlini, Othman Madinah, Adrus Zainab, Ngaini QL Zoology This research aimed to study the decomposition process of organophosphate-intoxicated rat carcasses and the succession pattern of associated insects at a secondary forest in Kuching, Sarawak, Malaysia. The animal model, Rattus norvegicus, weighing around 180-200g were assigned in T1 and T2 groups and were given LD50 dosage of organophosphate, glyphosate, and chlorpyrifos via oral administration, respectively. Sixty minutes after oral administration, the rats were euthanized and brought to the study site. The rat carcasses were monitored daily and the carrion insects were collected throughout the decomposition process. From five trials of experiments, a total of 1454 individual flies were collected, belonging to three families and 10 species. The highest number of fly species collected was Chrysomya rufifacies (75.03%) being the predominant species infesting the carcasses. The dipteran diversity and succession pattern were similar for all groups of carcasses, even though insect abundance were the least in T2 carcasses. Five stages of decomposition were observed in all rat carcasses, with longer decomposition duration in intoxicated carcasses (T1: 7.85±0.51 and T2: 15.8±2.82 days) compared to the control group (7.25±0.59 days). In conclusion, the organophosphate has altered the decomposition duration and the number of flies infesting the carcasses especially on chlorpyrifos-intoxicated carcasses. This work provides relevant information regarding the insect’s succession pattern and the changes in the decomposition period which may assist in the determination of post-mortem interval time in future investigation processes when organophosphate poisoning is suspected. Faculty of Science and Technology (FST) for the Unversiti Kebangsaan Malaysia (UKM) 2024 Article PeerReviewed text en http://ir.unimas.my/id/eprint/44620/1/DIVERSITY%20AND.pdf Nor Aliza, Abdul Rahim and Marlini, Othman and Madinah, Adrus and Zainab, Ngaini (2024) DIVERSITY AND SUCCESSION PATTERN OF FORENSICALLY IMPORTANT DIPTERAN SPECIES ASSOCIATED WITH ORGANOPHOSPHATE PESTICIDESINTOXICATED RAT CARCASSES IN SARAWAK, MALAYSIA. Serangga, 29 (1). pp. 119-137. ISSN 1394-5130 https://ejournal.ukm.my/serangga/article/view/61691 https://doi.org/10.17576/serangga-2024-2901-09 |
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QL Zoology Nor Aliza, Abdul Rahim Marlini, Othman Madinah, Adrus Zainab, Ngaini DIVERSITY AND SUCCESSION PATTERN OF FORENSICALLY IMPORTANT DIPTERAN SPECIES ASSOCIATED WITH ORGANOPHOSPHATE PESTICIDESINTOXICATED RAT CARCASSES IN SARAWAK, MALAYSIA |
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This research aimed to study the decomposition process of organophosphate-intoxicated rat carcasses and the succession pattern of associated insects at a secondary forest in Kuching, Sarawak, Malaysia. The animal model, Rattus norvegicus, weighing around 180-200g were assigned in T1 and T2 groups and were given LD50 dosage of organophosphate, glyphosate, and chlorpyrifos via oral administration, respectively. Sixty minutes after oral administration,
the rats were euthanized and brought to the study site. The rat carcasses were monitored daily and the carrion insects were collected throughout the decomposition process. From five trials of experiments, a total of 1454 individual flies were collected, belonging to three families and 10 species. The highest number of fly species collected was Chrysomya rufifacies (75.03%) being the predominant species infesting the carcasses. The dipteran diversity and succession
pattern were similar for all groups of carcasses, even though insect abundance were the least in T2 carcasses. Five stages of decomposition were observed in all rat carcasses, with longer decomposition duration in intoxicated carcasses (T1: 7.85±0.51 and T2: 15.8±2.82 days) compared to the control group (7.25±0.59 days). In conclusion, the organophosphate has altered the decomposition duration and the number of flies infesting the carcasses especially
on chlorpyrifos-intoxicated carcasses. This work provides relevant information regarding the insect’s succession pattern and the changes in the decomposition period which may assist in the determination of post-mortem interval time in future investigation processes when organophosphate poisoning is suspected. |
format |
Article |
author |
Nor Aliza, Abdul Rahim Marlini, Othman Madinah, Adrus Zainab, Ngaini |
author_facet |
Nor Aliza, Abdul Rahim Marlini, Othman Madinah, Adrus Zainab, Ngaini |
author_sort |
Nor Aliza, Abdul Rahim |
title |
DIVERSITY AND SUCCESSION PATTERN OF FORENSICALLY IMPORTANT
DIPTERAN SPECIES ASSOCIATED WITH ORGANOPHOSPHATE PESTICIDESINTOXICATED RAT CARCASSES IN SARAWAK, MALAYSIA |
title_short |
DIVERSITY AND SUCCESSION PATTERN OF FORENSICALLY IMPORTANT
DIPTERAN SPECIES ASSOCIATED WITH ORGANOPHOSPHATE PESTICIDESINTOXICATED RAT CARCASSES IN SARAWAK, MALAYSIA |
title_full |
DIVERSITY AND SUCCESSION PATTERN OF FORENSICALLY IMPORTANT
DIPTERAN SPECIES ASSOCIATED WITH ORGANOPHOSPHATE PESTICIDESINTOXICATED RAT CARCASSES IN SARAWAK, MALAYSIA |
title_fullStr |
DIVERSITY AND SUCCESSION PATTERN OF FORENSICALLY IMPORTANT
DIPTERAN SPECIES ASSOCIATED WITH ORGANOPHOSPHATE PESTICIDESINTOXICATED RAT CARCASSES IN SARAWAK, MALAYSIA |
title_full_unstemmed |
DIVERSITY AND SUCCESSION PATTERN OF FORENSICALLY IMPORTANT
DIPTERAN SPECIES ASSOCIATED WITH ORGANOPHOSPHATE PESTICIDESINTOXICATED RAT CARCASSES IN SARAWAK, MALAYSIA |
title_sort |
diversity and succession pattern of forensically important
dipteran species associated with organophosphate pesticidesintoxicated rat carcasses in sarawak, malaysia |
publisher |
Faculty of Science and Technology (FST) for the Unversiti Kebangsaan Malaysia (UKM) |
publishDate |
2024 |
url |
http://ir.unimas.my/id/eprint/44620/1/DIVERSITY%20AND.pdf http://ir.unimas.my/id/eprint/44620/ https://ejournal.ukm.my/serangga/article/view/61691 https://doi.org/10.17576/serangga-2024-2901-09 |
_version_ |
1797543494825279488 |
score |
13.160551 |