TY - JOUR
T1 - Environmental change during MIS4 and MIS 3 opened corridors in the Horn of Africa for Homo sapiens expansion
AU - Viehberg, Finn
AU - Just, Janna
AU - Dean, Jonathan R.
AU - Wagner, Bernd
AU - Franz, Sven Oliver
AU - Klasen, Nicole
AU - Kleinen, Thomas
AU - Ludwig, Patrick
AU - Asrat, Asfawossen
AU - Lamb, Henry
AU - Leng, Melanie J.
AU - Rethemeyer, Janet
AU - Milodowski, Antoni E.
AU - Claussen, Martin
AU - Schäbitz, Frank
N1 - Funding Information:
G. Dorenbeck and Jonas Urban (University of Cologne) are thanked for support during fieldwork, and D. Klinghardt, N. Mantke, S. Opitz and numerous students (Univ. of Cologne) for their competent help in core processing. We thank A. Hu (NCAR, Boulder) for granting access to CCSM3 model data. MJL and AEM publish with permission of the Executive Director of the British Geological Survey (NERC). Financial support was provided by the German Research Foundation (DFG, Collaborative Research Centre 806), NERC (NE/K014560/1, IP/1623/0516) and ICDP-SPP 1006 (SCHA 472/13-1, 13-2, 18-1, 18-2, 18-3 & TR 419/8-1, 8-2, 10-1, 10-2, 10-3). This is publication number #17 of the Hominin Sites and Paleolakes Drilling Project (HSPDP). The data reported in this paper are available in the databases of PANGAEA and the Collaborative Research Centre 806 Database (DOI: 10.5880/SFB806.chewbahir) via http://www.crc806db.uni-koeln.de/.
Funding Information:
G. Dorenbeck and Jonas Urban (University of Cologne) are thanked for support during fieldwork, and D. Klinghardt, N. Mantke, S. Opitz and numerous students (Univ. of Cologne) for their competent help in core processing. We thank A. Hu (NCAR, Boulder) for granting access to CCSM3 model data. MJL and AEM publish with permission of the Executive Director of the British Geological Survey (NERC). Financial support was provided by the German Research Foundation (DFG, Collaborative Research Centre 806), NERC ( NE/K014560/1 , IP/1623/0516 ) and ICDP-SPP 1006 (SCHA 472/13-1, 13-2, 18-1, 18-2, 18-3 & TR 419/8-1, 8-2, 10-1, 10-2, 10-3). This is publication number #17 of the Hominin Sites and Paleolakes Drilling Project (HSPDP). The data reported in this paper are available in the databases of PANGAEA and the Collaborative Research Centre 806 Database (DOI: 10.5880/SFB806.chewbahir) via http://www.crc806db.uni-koeln.de/ .
Publisher Copyright:
© 2018 The Authors
PY - 2018/12/15
Y1 - 2018/12/15
N2 - Archaeological findings, numerical human dispersal models and genome analyses suggest several time windows in the past 200 kyr (thousands of years ago) when anatomically modern humans (AMH) dispersed out of Africa into the Levant and/or Arabia. From close to the key hominin site of Omo-Kibish, we provide near continuous proxy evidence for environmental changes in lake sediment cores from the Chew Bahir basin, south Ethiopia. The data show highly variable hydroclimate conditions from 116 to 66 kyr BP with rapid shifts from very wet to extreme aridity. The wet phases coincide with the timing of the North African Humid Periods during MIS5, as defined by Nile discharge records from the eastern Mediterranean. The subsequent record at Chew Bahir suggests stable regional hydrological setting between 58 and 32 kyr (MIS4 and 3), which facilitated the development of more habitable ecosystems, albeit in generally dry climatic conditions. This shift, from more to less variable hydroclimate, may help account for the timing of later dispersal events of AMH out of Africa
AB - Archaeological findings, numerical human dispersal models and genome analyses suggest several time windows in the past 200 kyr (thousands of years ago) when anatomically modern humans (AMH) dispersed out of Africa into the Levant and/or Arabia. From close to the key hominin site of Omo-Kibish, we provide near continuous proxy evidence for environmental changes in lake sediment cores from the Chew Bahir basin, south Ethiopia. The data show highly variable hydroclimate conditions from 116 to 66 kyr BP with rapid shifts from very wet to extreme aridity. The wet phases coincide with the timing of the North African Humid Periods during MIS5, as defined by Nile discharge records from the eastern Mediterranean. The subsequent record at Chew Bahir suggests stable regional hydrological setting between 58 and 32 kyr (MIS4 and 3), which facilitated the development of more habitable ecosystems, albeit in generally dry climatic conditions. This shift, from more to less variable hydroclimate, may help account for the timing of later dispersal events of AMH out of Africa
UR - http://www.scopus.com/inward/record.url?scp=85054097526&partnerID=8YFLogxK
U2 - 10.1016/j.quascirev.2018.09.008
DO - 10.1016/j.quascirev.2018.09.008
M3 - Article
SN - 0277-3791
VL - 202
SP - 139
EP - 153
JO - Quaternary Science Reviews
JF - Quaternary Science Reviews
ER -