Paleoecological patterns at the Hadar hominin site, Afar Regional State, Ethiopia

Journal of Human Evolution
Kaye E Reed

Abstract

Reconstructing paleoecological patterns associated with hominin taxa, such as Australopithecus afarensis, is important for understanding possible evolutionary mechanisms involved in extinction and speciation events. It is critical to identify local, regional, or pan-African causal factors because patterns at these different levels may affect separate populations of the same species of hominin in unique ways. Habitat reconstructions of 12 submembers of the Hadar and Busidima formations (approximately 3.8-2.35 Ma) are presented here along with faunal differences in these submembers through time. Habitats with medium density tree and bush cover dominated the landscape through much of the earlier time period in the Hadar Formation. The lowermost Sidi Hakoma Member is the most closed habitat. The Denen Dora Member shows the influence of frequent floodplain edaphic grasslands with high abundances of reducin bovids. There is an influx of ungulates in the Kada Hadar Member (approximately 3.2--approximately 2.96 Ma) that indicates a more arid habitat populated by mammals that were recovered from earlier deposits further south in Ethiopia and Kenya. In the younger deposits from the Busidima Formation at Hadar, the landscape was open wood...Continue Reading

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Citations

Jul 23, 2013·Journal of Human Evolution·Gildas MerceronFrançois Martineau
Jul 16, 2013·Journal of Human Evolution·Lucas K DelezenePeter S Ungar
Nov 15, 2012·Proceedings of the National Academy of Sciences of the United States of America·Julia Lee-ThorpMichel Brunet
Jan 2, 2013·Proceedings of the National Academy of Sciences of the United States of America·Vivek V VenkataramanNathaniel J Dominy
Jun 5, 2013·Proceedings of the National Academy of Sciences of the United States of America·Jonathan G WynnJessica N Wilson
Oct 12, 2010·Journal of Human Evolution·Amy L Rector, Kaye E Reed
Jul 23, 2015·Journal of Human Evolution·Gabriele A Macho
Nov 6, 2009·American Journal of Physical Anthropology·William H Kimbel, Lucas K Delezene
May 15, 2016·Journal of Human Evolution·Emma MbuaMasato Nakatsukasa
Aug 15, 2013·Evolutionary Anthropology·Jason M Kamilar, Lydia Beaudrot
May 23, 2012·American Journal of Physical Anthropology·Frederick E GrineMark F Teaford
Nov 18, 2009·American Journal of Physical Anthropology·Yohannes Haile-SelassieBruce M Latimer
Aug 19, 2015·Journal of Human Evolution·Jessica C ThompsonZeresenay Alemseged
Jul 6, 2014·Journal of Human Evolution·Bryce A Carlson, John D Kingston
May 20, 2015·Journal of Human Evolution·Leena SukselainenTerry Harrison
Apr 19, 2015·Journal of Ethnobiology and Ethnomedicine·Alemayehu KefalewEnsermu Kelbessa
Jun 9, 2016·Proceedings of the National Academy of Sciences of the United States of America·Yohannes Haile-SelassieDenise F Su
Jun 28, 2016·Journal of Human Evolution·Sabrina C Curran, Yohannes Haile-Selassie
Aug 30, 2016·Nature·John KappelmanAdrienne Witzel
Oct 7, 2016·Proceedings. Biological Sciences·John RowanKaye E Reed
Jan 31, 2018·American Journal of Physical Anthropology·Brian Villmoare
Sep 2, 2020·Die Naturwissenschaften·Marianne F BrasilLeslea J Hlusko
Oct 9, 2019·Proceedings of the National Academy of Sciences of the United States of America·J Tyler FaithAndrew Du
Aug 16, 2017·Nature Ecology & Evolution·Joshua R RobinsonKaye E Reed
May 5, 2021·Nature Ecology & Evolution·Joshua R RobinsonMatt Sponheimer
Sep 1, 2020·Journal of Human Evolution·Amelia VillaseñorAnna K Behrensmeyer
Sep 21, 2021·Evolutionary Anthropology·Stacy LindshieldMidori Yoshikawa

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