Universität zu Köln

Trauth, Martin H., Asrat, Asfawossen, Berner, Nadine, Bibi, Faysal, Foerster, Verena, Grove, Matt, Kaboth-Bahr, Stefanie ORCID: 0000-0002-4449-2938, Maslin, Mark A., Mudelsee, Manfred and Schaebitz, Frank (2021). Northern Hemisphere Glaciation, African climate and human evolution. Quat. Sci. Rev., 268. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD. ISSN 1873-457X

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Abstract

The hypothesis of a connection between the onset (or intensification) of Northern Hemisphere Glaciation, the stepwise increase in African aridity (and climate variability), and an important mammalian (including hominin) species turnover is a textbook example of the initiation of a scientific idea and its propagation in science. It is, however, also an example of the persistent popularity of a hypothesis despite mounting evidence against it. A critical review of key publications on the topic and statistical re-analysis of key records of global ice volume and African climate leads to three conclusions: (1) The Northern Hemisphere Glaciation was a gradual process occurring between similar to 3.5 and 2.5 Ma, not a single event at similar to 2.8 Ma or at any other time. (2) A consistent stepwise (+/-0.2 Ma) transition toward greater aridity in Africa at similar to 2.8 Ma does not exist; instead, there are regionally different, gradual transitions partly in connection with the intensification of the Northern Hemisphere Glaciation, but above all with the establishment of the tropical Walker Circulation after similar to 2 Ma. (3) Mammalian (including hominin) species turnovers at this time also appear to have been gradual, rather than stepwise. (C) 2021 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Trauth, Martin H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Asrat, Asfawossen UNSPECIFIED UNSPECIFIED UNSPECIFIED Berner, Nadine UNSPECIFIED UNSPECIFIED UNSPECIFIED Bibi, Faysal UNSPECIFIED UNSPECIFIED UNSPECIFIED Foerster, Verena UNSPECIFIED UNSPECIFIED UNSPECIFIED Grove, Matt UNSPECIFIED UNSPECIFIED UNSPECIFIED Kaboth-Bahr, Stefanie UNSPECIFIED orcid.org/0000-0002-4449-2938 UNSPECIFIED Maslin, Mark A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mudelsee, Manfred UNSPECIFIED UNSPECIFIED UNSPECIFIED Schaebitz, Frank UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-597519
DOI:	10.1016/j.quascirev.2021.107095
Journal or Publication Title:	Quat. Sci. Rev.
Volume:	268
Date:	2021
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD
Place of Publication:	OXFORD
ISSN:	1873-457X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language TIME-SERIES ANALYSIS; OXYGEN-ISOTOPE; EAST-AFRICA; EARLY HOMO; PLIOCENE; OCEAN; ENVIRONMENT; TRENDS; RECORD; LEVEL Multiple languages Geography, Physical; Geosciences, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/59751