Ecological indices of key biological groups in Southern Iraqi Marshland during 2005-2007
Other Title(s)
الأدلة البيئية لمفتاح المجاميع الحياتية للأهوار الجنوبية في العراق خلال الأعوام 2005-2007
Joint Authors
Ali, Athir Husayn
Husayn, Najah Abbud
Lazim, Layth Faysal
Source
Mesopotamian Journal of Marine Science
Issue
Vol. 27, Issue 2 (31 Dec. 2012), pp.112-125, 14 p.
Publisher
University of Basrah Marine Science Centre
Publication Date
2012-12-31
Country of Publication
Iraq
No. of Pages
14
Main Subjects
Topics
Abstract AR
حسبت التذبذبات السنوية في الأدلة البيئية (التنوع و الغنى و التكافؤ) للنباتات المائية و اللافقريات الكبيرة و الأسماك و الطيور المائية في أهوار الحويزة و غرب و شرق الحمار خلال الفترة من 2005-2007.
ارتفعت الأدلة البيئية في كل الأهوار في 2006 بالمقارنة مع 2005 و للنباتات المائية و الطيور خصوصا في 2007.
ارتفعت الأدلة البيئية باطراد لمجتمعات النباتات المائية و الطيور المائية اعتبارا من 2005 و حتى 2007.
و بالعكس من ذلك انخفضت الأدلة البيئية لللافقاريات الكبيرة و الأسماك في 2007.
بالرغم من التحسن في الأدلة البيئية فان قيم التنوع و الغنى تراوحت ما بين فقيرة إلى معتدلة و نصف متكاملة إلى مضطربة على التوالي.
غالبية القيم للتنوع و الغنى فقيرة و مضطربة و الأقلية جيدة.
دلت قيم التكافؤ على عدم وجود حالات سيادة للأنواع ما عدا حالتين كانت أقل من الحد المقبول (0.5) سجلت خلال عام 2007.
لوحظ أن لانخفاض التصريف النهري السنوي تأثير على التنوع الحياتي ثم على انخفاض الأدلة البيئية في 2007 في أهوار الحويزة و شرق الحمار.
و يستنتج من قيم الأدلة البيئية المنخفضة أن الأهوار الجنوبية التي أعيد غمرها بالماء لا زالت مضطربة بيئيا و تحتاج إلى مزيد من الوقت و العناية لاكتمال تعافيها بيئيا.
Abstract EN
Yearly values of ecological indices were calculated for several key biological groups include macrophysics, macroinvertbrates, fishes and waterfowls during the period 2005-2007 in Huwaiza, West Hammar and East Hammar marshes in Southern Iraq.
Ecological indices increase for the studied key biological groups in 2006 in the three monitored marshes in comparison with that of 2005.
Ecological indices of macrophytes and waterfowls assemblages increase steadly from 2005 towards 2007.
On the contrary macroinvertebrates and fishes suffer severe decline in 2007 mainly due to reduced water level.
Continuous improvement in ecological indices of macrophytes and waterfowls in two of the restored marshes indicated that reduced water level was less harsh to them than to the other two groups.
In spite of the slow recovery in ecological indices in the monitored marshes, diversity and richness values fluctuated between poor to moderate status and semi-integrated to disturbed, respectively.
Cases of poor status and disturbed were more common and limited good ones were noticed.
Most evenness values indicated absence of dominance cases, except two below the acceptable limit (0.5) were scored both were during 2007.
What is clear is that the yearly hydrological period plays a major role in manipulating the biodiversity and repercussion ecological indices in the Southern restored marshes.
Lower values of ecological indices indicated that the environment of Southern marshes still disturbed and need more time and care to be fully restored.
American Psychological Association (APA)
Husayn, Najah Abbud& Ali, Athir Husayn& Lazim, Layth Faysal. 2012. Ecological indices of key biological groups in Southern Iraqi Marshland during 2005-2007. Mesopotamian Journal of Marine Science،Vol. 27, no. 2, pp.112-125.
https://search.emarefa.net/detail/BIM-335143
Modern Language Association (MLA)
Husayn, Najah Abbud…[et al.]. Ecological indices of key biological groups in Southern Iraqi Marshland during 2005-2007. Mesopotamian Journal of Marine Science Vol. 27, no. 2 (2012), pp.112-125.
https://search.emarefa.net/detail/BIM-335143
American Medical Association (AMA)
Husayn, Najah Abbud& Ali, Athir Husayn& Lazim, Layth Faysal. Ecological indices of key biological groups in Southern Iraqi Marshland during 2005-2007. Mesopotamian Journal of Marine Science. 2012. Vol. 27, no. 2, pp.112-125.
https://search.emarefa.net/detail/BIM-335143
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 122-125
Record ID
BIM-335143