Population demography and global sensitivity analysis of <i>Avicennia marina</i> on the eastern and western coasts of Saudi Arabia
Mangrove ecosystems are one of the habitats that host high environmental diversity at the level of physical, geomorphological and biological features in arid regions. In Saudi Arabia, mangrove ecosystems are heavily threatened by both natural hazards and human pressure. The total estimated area of m...
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| Format: | Article |
| Language: | English |
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AOSIS
2015-11-01
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| Series: | Koedoe: African Protected Area Conservation and Science |
| Subjects: | |
| Online Access: | https://koedoe.co.za/index.php/koedoe/article/view/1317 |
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| author | Mohamed Elhag Ahmad K. Hegazy Abdulrahman A. Alatar Mohamed Faisal Magdi El-Bana Jarbou A. Bahrawi Amal A.M. Al-Ghamdi |
| author_facet | Mohamed Elhag Ahmad K. Hegazy Abdulrahman A. Alatar Mohamed Faisal Magdi El-Bana Jarbou A. Bahrawi Amal A.M. Al-Ghamdi |
| author_sort | Mohamed Elhag |
| collection | DOAJ |
| description | Mangrove ecosystems are one of the habitats that host high environmental diversity at the level of physical, geomorphological and biological features in arid regions. In Saudi Arabia, mangrove ecosystems are heavily threatened by both natural hazards and human pressure. The total estimated area of mangroves in Safwa Al Khurais, Saudi Arabia, is approximately 20 000 ha in extent and comprises two species: Avicennia marina and Rhizophora mucronata. They supply detritus to the marine food web and play a significant role in the conservation of biological diversity. The main objective of this study was to analyse the demographic population sensitivity of A. marina in two representative sites on the Red Sea and the eastern coast of Saudi Arabia. A sensitivity analysis was used to assess the contributions of the inputs to the total uncertainty in the analysis outcomes. Demographic features affecting mangroves in Saudi Arabia are complex and include various aspects. The phenological phase, tree size, density, cover, number of dead trees and pneumatophore characteristics were considered in this study. A comparative analysis of Gaussian process emulators for performing a global sensitivity analysis was used to conduct a variance-based sensitivity analysis to identify which uncertain inputs drive the output uncertainty. The results showed that the interconnections between different demographic features were predictable, but that the extent of the sensitivity was uncertain. Findings from the current study are anticipated to contribute significantly towards an inclusive mangrove demographic features assessment, and towards the subsequent conservation of mangroves in Saudi Arabia.
Conservation implications: The findings of the current research are discussed in light of the application of sensitivity analyses outputs in the conservation and management of mangrove ecosystems at a national level |
| first_indexed | 2024-12-23T20:38:22Z |
| format | Article |
| id | doaj.art-a027918a76e5420fab677319752a7c35 |
| institution | Directory Open Access Journal |
| issn | 0075-6458 2071-0771 |
| language | English |
| last_indexed | 2024-12-23T20:38:22Z |
| publishDate | 2015-11-01 |
| publisher | AOSIS |
| record_format | Article |
| series | Koedoe: African Protected Area Conservation and Science |
| spelling | doaj.art-a027918a76e5420fab677319752a7c352022-12-21T17:32:00ZengAOSISKoedoe: African Protected Area Conservation and Science0075-64582071-07712015-11-01571e1e910.4102/koedoe.v57i1.13171125Population demography and global sensitivity analysis of <i>Avicennia marina</i> on the eastern and western coasts of Saudi ArabiaMohamed Elhag0Ahmad K. Hegazy1Abdulrahman A. Alatar2Mohamed Faisal3Magdi El-Bana4Jarbou A. Bahrawi5Amal A.M. Al-Ghamdi6Department of Hydrology and Water Resources Management, King Abdulaziz UniversityDepartment of Botany and Microbiology, Cairo UniversityDepartment of Botany and Microbiology, King Saud UniversityDepartment of Botany and Microbiology, King Saud UniversityDepartment of Botany, Port Said UniversityDepartment of Hydrology and Water Resources Management, King Abdulaziz UniversityDepartment of Botany, Environment Program, King Abdul Aziz UniversityMangrove ecosystems are one of the habitats that host high environmental diversity at the level of physical, geomorphological and biological features in arid regions. In Saudi Arabia, mangrove ecosystems are heavily threatened by both natural hazards and human pressure. The total estimated area of mangroves in Safwa Al Khurais, Saudi Arabia, is approximately 20 000 ha in extent and comprises two species: Avicennia marina and Rhizophora mucronata. They supply detritus to the marine food web and play a significant role in the conservation of biological diversity. The main objective of this study was to analyse the demographic population sensitivity of A. marina in two representative sites on the Red Sea and the eastern coast of Saudi Arabia. A sensitivity analysis was used to assess the contributions of the inputs to the total uncertainty in the analysis outcomes. Demographic features affecting mangroves in Saudi Arabia are complex and include various aspects. The phenological phase, tree size, density, cover, number of dead trees and pneumatophore characteristics were considered in this study. A comparative analysis of Gaussian process emulators for performing a global sensitivity analysis was used to conduct a variance-based sensitivity analysis to identify which uncertain inputs drive the output uncertainty. The results showed that the interconnections between different demographic features were predictable, but that the extent of the sensitivity was uncertain. Findings from the current study are anticipated to contribute significantly towards an inclusive mangrove demographic features assessment, and towards the subsequent conservation of mangroves in Saudi Arabia. Conservation implications: The findings of the current research are discussed in light of the application of sensitivity analyses outputs in the conservation and management of mangrove ecosystems at a national levelhttps://koedoe.co.za/index.php/koedoe/article/view/1317Arabian Gulf, Demographic features, Mangrove ecosystem, Red Sea, Uncertainty. |
| spellingShingle | Mohamed Elhag Ahmad K. Hegazy Abdulrahman A. Alatar Mohamed Faisal Magdi El-Bana Jarbou A. Bahrawi Amal A.M. Al-Ghamdi Population demography and global sensitivity analysis of <i>Avicennia marina</i> on the eastern and western coasts of Saudi Arabia Koedoe: African Protected Area Conservation and Science Arabian Gulf, Demographic features, Mangrove ecosystem, Red Sea, Uncertainty. |
| title | Population demography and global sensitivity analysis of <i>Avicennia marina</i> on the eastern and western coasts of Saudi Arabia |
| title_full | Population demography and global sensitivity analysis of <i>Avicennia marina</i> on the eastern and western coasts of Saudi Arabia |
| title_fullStr | Population demography and global sensitivity analysis of <i>Avicennia marina</i> on the eastern and western coasts of Saudi Arabia |
| title_full_unstemmed | Population demography and global sensitivity analysis of <i>Avicennia marina</i> on the eastern and western coasts of Saudi Arabia |
| title_short | Population demography and global sensitivity analysis of <i>Avicennia marina</i> on the eastern and western coasts of Saudi Arabia |
| title_sort | population demography and global sensitivity analysis of i avicennia marina i on the eastern and western coasts of saudi arabia |
| topic | Arabian Gulf, Demographic features, Mangrove ecosystem, Red Sea, Uncertainty. |
| url | https://koedoe.co.za/index.php/koedoe/article/view/1317 |
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