Ecosystem variability and early human habitats in eastern Africa.

@article{Magill2013EcosystemVA,
  title={Ecosystem variability and early human habitats in eastern Africa.},
  author={Clayton R. Magill and Gail M. Ashley and Katherine H. Freeman},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2013},
  volume={110 4},
  pages={1167-74}
}
The role of savannas during the course of early human evolution has been debated for nearly a century, in part because of difficulties in characterizing local ecosystems from fossil and sediment records. Here, we present high-resolution lipid biomarker and isotopic signatures for organic matter preserved in lake sediments at Olduvai Gorge during a key juncture in human evolution about 2.0 Ma--the emergence and dispersal of Homo erectus (sensu lato). Using published data for modern plants and… CONTINUE READING
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