Variation of plant species and functional types diversity along altitudinal gradient in Mediterranean mountain ecosystem of Libya /
Abdelnasser Saed Farag Elborki
Variation of plant species and functional types diversity along altitudinal gradient in Mediterranean mountain ecosystem of Libya / تبا Abdelnasser Saed Farag Elborki ; Supervised Ahmad Kamel Hegazy , Hanan Farouk Kabiel , Jon Lovett-Doust - Cairo : Abdelnasser Saed Farag Elborki , 2015 - 138 P. : Sharts , facsimiles ; 25cm
Thesis (Ph.D.) - Cairo University - Faculty of Science - Department of Botany and Microbiology
This study covered the eastern and western mountainous ecosystems in north of Libya. At the level of species composition and diversity, life form structure, and reproductive phenology, plant communities in the eastern Al-Akhdar mountainous landscape were characterized by higher resistance and stability as compared to that in the western Nafusa Mountains. Populations of the keystone species Juniperus phoenicea L. showed significant variations on the vegetative types and reproductive traits along altitudinal gradient. As for the endemic Arbutus pavarii Pamp., the young trees are susceptible to dieback where none of the populations showed a stable distribution of size classes. In some of the tree species populations, the lack of recruitment, the failure of successful fruit production, and increased dieback constitute serious demographic threats. There is a pressing need to conserve the keystone species from further dieback through targeted management plans
Altitudinal gradient Demography Southern Mediterranean
Variation of plant species and functional types diversity along altitudinal gradient in Mediterranean mountain ecosystem of Libya / تبا Abdelnasser Saed Farag Elborki ; Supervised Ahmad Kamel Hegazy , Hanan Farouk Kabiel , Jon Lovett-Doust - Cairo : Abdelnasser Saed Farag Elborki , 2015 - 138 P. : Sharts , facsimiles ; 25cm
Thesis (Ph.D.) - Cairo University - Faculty of Science - Department of Botany and Microbiology
This study covered the eastern and western mountainous ecosystems in north of Libya. At the level of species composition and diversity, life form structure, and reproductive phenology, plant communities in the eastern Al-Akhdar mountainous landscape were characterized by higher resistance and stability as compared to that in the western Nafusa Mountains. Populations of the keystone species Juniperus phoenicea L. showed significant variations on the vegetative types and reproductive traits along altitudinal gradient. As for the endemic Arbutus pavarii Pamp., the young trees are susceptible to dieback where none of the populations showed a stable distribution of size classes. In some of the tree species populations, the lack of recruitment, the failure of successful fruit production, and increased dieback constitute serious demographic threats. There is a pressing need to conserve the keystone species from further dieback through targeted management plans
Altitudinal gradient Demography Southern Mediterranean