Hypothesis about migration of species between Africa and Eurasia
Carvings of fauna common in the Sahara during the wet phase, found at Tassili in the central Sahara
The Sahara pump theory is a hypothesis that explains how flora and fauna migrated between Eurasia and Africa via a land bridge in the Levant region. It posits that extended periods of abundant rainfall lasting many thousands of years (pluvial periods) in Africa are associated with a "wet-green Sahara" phase, during which larger lakes and more rivers existed.[1] This caused changes in the flora and fauna found in the area. Migration along the river corridor was halted when, during a desert phase 1.8–0.8 million years ago (mya), the Nile ceased to flow completely[clarification needed][2][3] and possibly flowed only temporarily in other periods[4] due to the geologic uplift (Nubian Swell) of the Nile River region.
^van Zinderen-Bakker E. M. (1962-04-14). "A Late-Glacial and Post-Glacial Climatic Correlation between East Africa and Europe". Nature. 194 (4824): 201–203. Bibcode:1962Natur.194..201V. doi:10.1038/194201a0. S2CID 186244151.
^"Structural Controls Of The Egyptian Nile". Archived from the original on 2010-08-31. Retrieved 2009-06-27.
^Lansbery, Leslie (2011). Geological and geomorphological evolution of the Egyptian Nile between Aswan and Kom Ombo: A remote sensing and field study approach (MS). Missouri University of Science and Technology.
^Williams, Martin A.J.; Talbot, Michael R. (2009). "Late Quaternary Environments in the Nile Basin". The Nile. Monographiae Biologicae. Vol. 89. pp. 61–72. doi:10.1007/978-1-4020-9726-3_4. ISBN 978-1-4020-9725-6.
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