Effect of environmrntal disturbances on odonata assemblages along a tropical polluted river

Odonata larvae have been intensively used as bioindicators for freshwater pollution as their community structure closely follow changes in the environment and habitat settings. In this study, 28 taxa of Odonata larvae were collected from three stations (upper, middle and lower) of a polluted rive...

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Main Authors:	Abdul, Nurul Huda, Md Rawi, Che Salmah, Ahmad, Abu Hassan, Al-Shami,, Salman Abdo
Format:	Article
Language:	English English
Published:	De Gruyter 2017
Subjects:	QH301 Biology QH541.13 Ecology QL Zoology
Online Access:	http://irep.iium.edu.my/61681/ http://irep.iium.edu.my/61681/ http://irep.iium.edu.my/61681/ http://irep.iium.edu.my/61681/1/Nurul%20Huda%20et%20al%202017%20Effect%20of%20Environmrntal%20Disturbances.pdf http://irep.iium.edu.my/61681/7/61681_effect%20of%20environmental%20disturbances_scopus.pdf

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recordtype	eprints
spelling	iium-616812018-03-09T04:12:47Z http://irep.iium.edu.my/61681/ Effect of environmrntal disturbances on odonata assemblages along a tropical polluted river Abdul, Nurul Huda Md Rawi, Che Salmah Ahmad, Abu Hassan Al-Shami,, Salman Abdo QH301 Biology QH541.13 Ecology QL Zoology Odonata larvae have been intensively used as bioindicators for freshwater pollution as their community structure closely follow changes in the environment and habitat settings. In this study, 28 taxa of Odonata larvae were collected from three stations (upper, middle and lower) of a polluted river in Malaysia. The upper river basin receives effluents from an oil palm plantation. However, the middle station is presumably contaminated with anthropogenic wastes. The lower station is found to receive polluted discharges from aquaculture outlet. Several environmental parameters of water and sediment were continuously measured during the study. The water parameters showed no significant differences amongst the three stations. The species richness of Odonata was 22, 24 and 20 in the upper, middle and lower stations, respectively. The abundance of Odonata was significantly different among the studied sites. The tolerant damselfly, Pseudagrion sp. (41.22%), and facultative dragonflies, Onychothemis sp. (17.12%), were the most dominant taxa along the river stations. Onychothemis sp. and Paragomphus capricornis were equally important at the upper station [Important Species Index (ISI) 25.3 and 24.2%, respectively]. Pseudagrion sp. only scored an ISI value of 9.7%. Pseudagrion sp., P. capricornis and Onychothemis sp. were dominant in the middle station (ISI: 41.2%, 25.9% and 10.9% respectively), and Pseudagrion sp., Onychothemis sp. and Prodasineura sp. dominated the areas with dense growth of submerged aquatic weeds Hydrilla sp. in the lower station (ISI: 47.9, 24.5 and 13.8%, respectively). On the basis of the variations in larval abundance and ISI values, microhabitats differences partly in response to different types of pollutions entering the water structured the Odonata communities in this river basin. De Gruyter 2017-12 Article PeerReviewed application/pdf en http://irep.iium.edu.my/61681/1/Nurul%20Huda%20et%20al%202017%20Effect%20of%20Environmrntal%20Disturbances.pdf application/pdf en http://irep.iium.edu.my/61681/7/61681_effect%20of%20environmental%20disturbances_scopus.pdf Abdul, Nurul Huda and Md Rawi, Che Salmah and Ahmad, Abu Hassan and Al-Shami,, Salman Abdo (2017) Effect of environmrntal disturbances on odonata assemblages along a tropical polluted river. Ekológia (Bratislava) :The Journal of Institute of Landscape Ecology of Slovak Academy of Sciences, 36 (4). pp. 388-402. ISSN 1335-342X https://www.degruyter.com/downloadpdf/j/eko.2017.36.issue-4/eko-2017-0030/eko-2017-0030.pdf 10.1515/eko-2017-0030
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	QH301 Biology QH541.13 Ecology QL Zoology
spellingShingle	QH301 Biology QH541.13 Ecology QL Zoology Abdul, Nurul Huda Md Rawi, Che Salmah Ahmad, Abu Hassan Al-Shami,, Salman Abdo Effect of environmrntal disturbances on odonata assemblages along a tropical polluted river
description	Odonata larvae have been intensively used as bioindicators for freshwater pollution as their community structure closely follow changes in the environment and habitat settings. In this study, 28 taxa of Odonata larvae were collected from three stations (upper, middle and lower) of a polluted river in Malaysia. The upper river basin receives effluents from an oil palm plantation. However, the middle station is presumably contaminated with anthropogenic wastes. The lower station is found to receive polluted discharges from aquaculture outlet. Several environmental parameters of water and sediment were continuously measured during the study. The water parameters showed no significant differences amongst the three stations. The species richness of Odonata was 22, 24 and 20 in the upper, middle and lower stations, respectively. The abundance of Odonata was significantly different among the studied sites. The tolerant damselfly, Pseudagrion sp. (41.22%), and facultative dragonflies, Onychothemis sp. (17.12%), were the most dominant taxa along the river stations. Onychothemis sp. and Paragomphus capricornis were equally important at the upper station [Important Species Index (ISI) 25.3 and 24.2%, respectively]. Pseudagrion sp. only scored an ISI value of 9.7%. Pseudagrion sp., P. capricornis and Onychothemis sp. were dominant in the middle station (ISI: 41.2%, 25.9% and 10.9% respectively), and Pseudagrion sp., Onychothemis sp. and Prodasineura sp. dominated the areas with dense growth of submerged aquatic weeds Hydrilla sp. in the lower station (ISI: 47.9, 24.5 and 13.8%, respectively). On the basis of the variations in larval abundance and ISI values, microhabitats differences partly in response to different types of pollutions entering the water structured the Odonata communities in this river basin.
format	Article
author	Abdul, Nurul Huda Md Rawi, Che Salmah Ahmad, Abu Hassan Al-Shami,, Salman Abdo
author_facet	Abdul, Nurul Huda Md Rawi, Che Salmah Ahmad, Abu Hassan Al-Shami,, Salman Abdo
author_sort	Abdul, Nurul Huda
title	Effect of environmrntal disturbances on odonata assemblages along a tropical polluted river
title_short	Effect of environmrntal disturbances on odonata assemblages along a tropical polluted river
title_full	Effect of environmrntal disturbances on odonata assemblages along a tropical polluted river
title_fullStr	Effect of environmrntal disturbances on odonata assemblages along a tropical polluted river
title_full_unstemmed	Effect of environmrntal disturbances on odonata assemblages along a tropical polluted river
title_sort	effect of environmrntal disturbances on odonata assemblages along a tropical polluted river
publisher	De Gruyter
publishDate	2017
url	http://irep.iium.edu.my/61681/ http://irep.iium.edu.my/61681/ http://irep.iium.edu.my/61681/ http://irep.iium.edu.my/61681/1/Nurul%20Huda%20et%20al%202017%20Effect%20of%20Environmrntal%20Disturbances.pdf http://irep.iium.edu.my/61681/7/61681_effect%20of%20environmental%20disturbances_scopus.pdf
first_indexed	2023-09-18T21:27:28Z
last_indexed	2023-09-18T21:27:28Z
_version_	1777412287275991040

Effect of environmrntal disturbances on odonata assemblages along a tropical polluted river

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