1. Institute of Prehistoric Archaeology, University of Cologne, Cologne, Germany.
2. Institute of Geography, University of Bern, Bern, Switzerland.
3. Department of Soil Biogeochemistry, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany.
4. MNHN/CNRS–UMR 7209 Archaeozoology, Archaeobotany Laboratory (AASPE), Paris, France.
5. Institute of Biosciences, University of Rostock, Rostock, Germany.
6. Institute of Geological Sciences, University of Bern, Bern, Switzerland.
7. Department of Plant Biology and Biodiversity Management, Addis Ababa University, Addis Ababa, Ethiopia.
8. Department of Archaeology and Heritage Management, Addis Ababa University, Addis Ababa, Ethiopia.
9. School of Earth Science, Addis Ababa University, Addis Ababa, Ethiopia.
10. Department of Geology and Geophysics, University of Utah, Salt Lake City, UT, USA.
11. Faculty of Geography, Philipps University Marburg, Marburg, Germany.
12. Paleoanthropology and Paleoenvironment Program, Addis Ababa University, Addis Ababa, Ethiopia.
13. Institute of Soil Science and Soil Geography, University of Bayreuth, Bayreuth, Germany.
14. Department of Ecology, Philipps University Marburg, Marburg, Germany.
15. Swiss Federal Research Institute WSL, Birmensdorf, Switzerland.