Your browser doesn't support javascript.
loading
Increased ecological resource variability during a critical transition in hominin evolution.
Potts, Richard; Dommain, René; Moerman, Jessica W; Behrensmeyer, Anna K; Deino, Alan L; Riedl, Simon; Beverly, Emily J; Brown, Erik T; Deocampo, Daniel; Kinyanjui, Rahab; Lupien, Rachel; Owen, R Bernhart; Rabideaux, Nathan; Russell, James M; Stockhecke, Mona; deMenocal, Peter; Faith, J Tyler; Garcin, Yannick; Noren, Anders; Scott, Jennifer J; Western, David; Bright, Jordon; Clark, Jennifer B; Cohen, Andrew S; Keller, C Brehnin; King, John; Levin, Naomi E; Brady Shannon, Kristina; Muiruri, Veronica; Renaut, Robin W; Rucina, Stephen M; Uno, Kevin.
Afiliação
  • Potts R; Human Origins Program, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA. pottsr@si.edu.
  • Dommain R; Department of Earth Sciences, National Museums of Kenya, P.O. Box 40658, Nairobi 00100, Kenya.
  • Moerman JW; Human Origins Program, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA.
  • Behrensmeyer AK; Institute of Geosciences, University of Potsdam, 14476 Potsdam, Germany.
  • Deino AL; Human Origins Program, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA.
  • Riedl S; Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA.
  • Beverly EJ; Berkeley Geochronology Center, Ridge Road, Berkeley, CA 94709, USA.
  • Brown ET; Institute of Geosciences, University of Potsdam, 14476 Potsdam, Germany.
  • Deocampo D; Earth and Atmospheric Sciences, University of Houston, TX 77204, USA.
  • Kinyanjui R; Large Lakes Observatory and Dept. of Earth and Environmental Sciences, University of Minnesota Duluth, Duluth, MN 55812, USA.
  • Lupien R; Department of Geosciences, Georgia State University, Atlanta, GA 30302, USA.
  • Owen RB; Department of Earth Sciences, National Museums of Kenya, P.O. Box 40658, Nairobi 00100, Kenya.
  • Rabideaux N; Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, USA.
  • Russell JM; Department of Geography, Hong Kong Baptist University, Kowloon Tong, Hong Kong.
  • Stockhecke M; Department of Chemistry, Rutgers University Newark, Newark, NJ 07109, USA.
  • deMenocal P; Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA.
  • Faith JT; Large Lakes Observatory and Dept. of Earth and Environmental Sciences, University of Minnesota Duluth, Duluth, MN 55812, USA.
  • Garcin Y; Department of Surface Waters-Research and Management, EAWAG, Überlandstr. 133, 8600 Dübendorf, Switzerland.
  • Noren A; Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, USA.
  • Scott JJ; Natural History Museum of Utah, University of Utah, Salt Lake City, UT 84108, USA.
  • Western D; Department of Anthropology, University of Utah, Salt Lake City, UT 84112, USA.
  • Bright J; Aix Marseille Univ, CNRS, IRD, INRAE, Coll France, CEREGE, 13545 Aix-en-Provence, France.
  • Clark JB; Continental Scientific Drilling Coordination Office and LacCore Facility, Dept. of Earth and Environmental Sciences, University of Minnesota, Minneapolis, MN 55455, USA.
  • Cohen AS; Department of Earth and Environmental Sciences, Mount Royal University, Calgary, Alberta T3E 6K6, Canada.
  • Keller CB; African Conservation Centre, P.O. Box 15289, Nairobi 00509, Kenya.
  • King J; School of Earth and Sustainability, Northern Arizona University, Flagstaff, AZ 86011, USA.
  • Levin NE; Human Origins Program, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA.
  • Brady Shannon K; Department of Geosciences, University of Arizona, Tucson, AZ 85721, USA.
  • Muiruri V; Department of Earth Sciences, Dartmouth College, Hanover, NH 03755, USA.
  • Renaut RW; Graduate School of Oceanography, University of Rhode Island, Narragansett, RI 02882, USA.
  • Rucina SM; Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI 48109, USA.
  • Uno K; Continental Scientific Drilling Coordination Office and LacCore Facility, Dept. of Earth and Environmental Sciences, University of Minnesota, Minneapolis, MN 55455, USA.
Sci Adv ; 6(43)2020 10.
Article em En | MEDLINE | ID: mdl-33087353
ABSTRACT
Although climate change is considered to have been a large-scale driver of African human evolution, landscape-scale shifts in ecological resources that may have shaped novel hominin adaptations are rarely investigated. We use well-dated, high-resolution, drill-core datasets to understand ecological dynamics associated with a major adaptive transition in the archeological record ~24 km from the coring site. Outcrops preserve evidence of the replacement of Acheulean by Middle Stone Age (MSA) technological, cognitive, and social innovations between 500 and 300 thousand years (ka) ago, contemporaneous with large-scale taxonomic and adaptive turnover in mammal herbivores. Beginning ~400 ka ago, tectonic, hydrological, and ecological changes combined to disrupt a relatively stable resource base, prompting fluctuations of increasing magnitude in freshwater availability, grassland communities, and woody plant cover. Interaction of these factors offers a resource-oriented hypothesis for the evolutionary success of MSA adaptations, which likely contributed to the ecological flexibility typical of Homo sapiens foragers.
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article