Holocene Paleoclimatic Variation Inferred from Study of Sediments in the Gulf of Tunis (North Africa)

2019 ◽  
pp. 37-40
Author(s):  
Nizar Ouertani ◽  
Soumaya Yahyaoui
Keyword(s):  
North Africa ◽  
Gulf Of Tunis

scholarly journals Alarming coastal vulnerability of the deltaic and sandy beaches of North Africa

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Abderraouf Hzami ◽  
Essam Heggy ◽  
Oula Amrouni ◽  
Gil Mahé ◽  
Mohamed Maanan ◽  
...  
Keyword(s):  
Global Warming ◽  
North Africa ◽  
Nile Delta ◽  
Vulnerability Index ◽  
Sandy Beaches ◽  
Source Analysis ◽  
Coastal Vulnerability ◽  
Coastal Vulnerability Index ◽  
Gulf Of Tunis ◽  
Anthropogenic Drivers

AbstractThe arid coasts of North Africa, extending over 4633 km from the Gulf of Tunis to the Nile Delta, are undergoing pronounced shoreline retreats and coastal floodings that are reported as a consequence of the ongoing sea level rise resulting from global warming. Of particular interest are the abnormal shoreline dynamics for deltaic and sandy beaches, which are severely impacted by abrupt decadal variabilities in both climatic and anthropogenic drivers resulting in their increased vulnerability to disturbances from coastal hazards. Unfortunately, the evolution, distribution and impacts of these drivers remain largely unquantified, let alone understood, for these extensive arid coasts that harbor the major portion of North Africa’s population as well as unique and fragile marine ecosystems. To address this deficiency, we use GIS-based multi-criteria approaches combined with analytic hierarchy process to map the Coastal Vulnerability Index and the Socioeconomic Vulnerability Index along these coasts to investigate the amplitude and extent of shoreline deterioration resulting from sudden fluctuations in sediment transport to the coastline. We use the western bay of the Gulf of Tunis, the coasts of Tripoli and the Nile Delta as three validation sites for our vulnerability assessment. The statistical Integrated Coastal Vulnerability Index map reveals that 47% of arid North African coasts are characterized by high to very high vulnerability. In particular, we observe that the densely populated deltaic coasts in both Tunisia and Egypt are 70% more vulnerable than any others coast in the eastern Mediterranean Basin. These abnormally high-vulnerability extensive areas are also correlated with significant deterioration of coastal aquifers and hence in crop production, compromising local food security and resulting in increasing outflow migration trends. Both Tunisia and Egypt observed dramatic increases in the net population outflow migration by respectively 62% and 248% between 2000 and 2016, mostly from coastal areas. Our source analysis of the amplitude and extent of these high coastal vulnerabilities suggests that they result from the anthropogenic drivers of damming and rapid urban growth over the last few decades rather than the effects of global warming.

Ibadi Muslims of North Africa

2018 ◽  
Author(s):  
Paul M. Love, Jr
Keyword(s):  
North Africa

Jihadists of North Africa and the Sahel

2020 ◽  
Author(s):  
Alexander Thurston
Keyword(s):  
North Africa

The Dupont family: collectors, dealers and naturalists in nineteenth-century Paris

2016 ◽  
Vol 43 (2) ◽  
pp. 191-207 ◽  
Author(s):  
Richard Mearns ◽  
Laurent Chevrier ◽  
Christophe Gouraud
Keyword(s):  
Nineteenth Century ◽  
Family History ◽  
Natural History ◽  
North Africa ◽  
Special Interest ◽  
Early Life ◽  
Anatomical Models ◽  
The Family ◽  
Small Collection

In the early part of the nineteenth century the Dupont brothers ran separate natural history businesses in Paris. Relatively little is known about their early life but an investigation into the family history at Bayeux corrects Léonard Dupont's year of birth from 1795 to 1796. In 1818 Léonard joined Joseph Ritchie's expedition to North Africa to assist in collecting and preparing the discoveries but he did not get beyond Tripoli. After 15 months he came back to Paris with a small collection from Libya and Provence, and returned to Provence in 1821. While operating as a dealer-naturalist in Paris he published Traité de taxidermie (1823, 1827), developed a special interest in foreign birds and became well known for his anatomical models in coloured wax. Henry Dupont sold a range of natural history material and with his particular passion for beetles formed one of the finest collections in Europe; his best known publication is Monographie des Trachydérides (1836–1840). Because the brothers had overlapping interests and were rarely referred to by their forenames there has been confusion between them and the various eponyms that commemorate them. Although probably true, it would be an over-simplification to state that birds of this era named for Dupont refer to Léonard Dupont, insects to Henry Dupont, and molluscs to their mother.

Press Propaganda and Subaltern Agents of Pan-Islamic Networks in the Muslim Mediterranean World prior to World War I

2018 ◽  
Author(s):  
Odile Moreau
Keyword(s):  
Middle East ◽  
World War I ◽  
North Africa ◽  
World War ◽  
Subaltern Studies ◽  
Resistance Movements ◽  
The Press ◽  
Mediterranean World ◽  
History Of

This chapter explores movement and circulation across the Mediterranean and seeks to contribute to a history of proto-nationalism in the Maghrib and the Middle East at a particular moment prior to World War I. The discussion is particularly concerned with the interface of two Mediterranean spaces: the Middle East (Egypt, Ottoman Empire) and North Africa (Morocco), where the latter is viewed as a case study where resistance movements sought external allies as a way of compensating for their internal weakness. Applying methods developed by Subaltern Studies, and linking macro-historical approaches, namely of a translocal movement in the Muslim Mediterranean, it explores how the Egypt-based society, al-Ittihad al-Maghribi, through its agent, Aref Taher, used the press as an instrument for political propaganda, promoting its Pan-Islamic programme and its goal of uniting North Africa.

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