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Evidence for a cooler and drier climate in the Ethiopian uplands towards 2.5 Myr ago

Nature volume 303, pages 487–491 (1983)Cite this article

Abstract

In east-central Ethiopia (7° N–39° E), at 2,300 m, Pliocene diatomites underlying sediments bearing Acheulian artefacts have provided a rich pollen microflora. The pollen diagram with a Plio-Pleistocene age (2.5–2.35 Myr) is dominated by grasses, Ericaceae and Myrica, whereas the modern pollen rain is dominated by forest taxa. The weak representation of montane forest trees and the abundance of heath moorland and grassland pollen indicate a cooler and drier climate during a time period known to include episodes of global cooling.

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References

  1. Frakes, L. A. Climates throughout Geologic Time (Elsevier, Amsterdam, 1979).

    Google Scholar 

  2. Pearson, R. Climates and Evolution (Academic, London, 1978).

    Google Scholar 

  3. Hays, J. D. Am. geophys. Un. Antarct. Res. Ser. 5, 125–184 (1965).

    Google Scholar 

  4. Weaver, F. H. Florida. State. Univ. Sediment. Res. Lab. Rep. 36, 142 (1973).

    Google Scholar 

  5. Shackleton, N. J. Nature 270, 216–219 (1977).

    ADS  CAS  Google Scholar 

  6. Tsukada, M. Palaeogeogr. Palaeoclimatol. Palaeoecol. 3, 49–64 (1967).

    Google Scholar 

  7. Leopold, E. in Aspect of Palynology (eds Tschudy, R. H. & Scott, R. A.) 377–438 (Wiley, New York, 1969).

    Google Scholar 

  8. Zagwijn, W. H. in Ice Ages, Ancient and Modern (eds Wright, A. E. & Moseley, F.) 135–152 (Seel House, Liverpool, 1975).

    Google Scholar 

  9. Clark, J. D. & Kurashina, H. Nature 282, 33–39 (1979).

    ADS  Google Scholar 

  10. Clark, J. D. et al. in Palaeoecology of Africa Vol. 11 (ed. Van Zinderen Bakker, E. M.) 145–147 (Balkema, Rotterdam, 1979).

    Google Scholar 

  11. Williams, M. A. J., Williams, F. M., Gasse, F., Curtis, G. H. & Adamson, D. A. Nature 281, 29–33 (1979).

    Google Scholar 

  12. Axelrod, D. I. & Raven, P. H. in Biogeography and Ecology of Southern Africa (ed. Werger, M. J. A.) 77–130 (Junk, The Hague, 1978).

    Google Scholar 

  13. Cronin, J. E., Boaz, N. T., Stringer, C. B. & Rak, Y. Nature 298, 113–122 (1981).

    ADS  Google Scholar 

  14. Messerli, B., Winiger, M. & Rognon, P. in The Sahara and Nile (eds Williams, M. A. H. & Faure, H.) 87–132 (Balkema, Rotterdam, 1980).

    Google Scholar 

  15. Chaffey, D. R. South-west Ethiopia Forest Inventory Project (Land Resources Development Centre, Surbiton 1979).

    Google Scholar 

  16. Logan, W. E. M. An Introduction to the Forest of Central and Southern Ethiopia (Imperial Forestry Institute, Oxford, 1946).

    Google Scholar 

  17. Mooney, H. F. Proc. Linnean Soc. Lond. 172, Pt. 2, 126–152 (1963).

    Google Scholar 

  18. Henry, P. W. T. South-west Ethiopia Forest Inventory Project (Land Resources Development Centre, Surbiton, 1973).

    Google Scholar 

  19. Hedberg, O. Boissiera 24, 71–74 (1975).

    Google Scholar 

  20. Hedberg, O. Oikos 5, 137–165 (1954).

    Google Scholar 

  21. Coetzee, J. A. in Palaeoecology of Africa Vol. 3 (ed. Van Zinderen Bakker, E. M.) 1–100 (Balkema, Cape Town, 1967).

    Google Scholar 

  22. Hamilton, A. C. & Perrott, R. A. Pollen et Spores 22, 437–468 (1980).

    Google Scholar 

  23. Kendall, R. L. Ecol. Monogr. 39, 121–176 (1969).

    CAS  Google Scholar 

  24. Vincens, A. thesis, Univ. Aix-Marseille II (1982).

  25. Livingstone, D. A. Limnol. Oceanogr. 16, 349–356 (1971).

    ADS  Google Scholar 

  26. Livingstone, D. A. Ecol. Monogr. 37, 25–52 (1967).

    Google Scholar 

  27. Hamilton, A. C. Environmental History of East Africa (Academic, London, 1982).

    Google Scholar 

  28. Gasse, F. Les diatomées lacustres plio-pléistocènes du Gadeb (Revue algologique, Paris, 1980).

    Google Scholar 

  29. Pichi-Sermolli, R. Webbia 13, 15–132 (1957).

    Google Scholar 

  30. Cufodontis, G. Enumeratio plantarum aethiopiae spermatophyta (Jardin botanique National Belgique, Bruxelles, 1974).

    Google Scholar 

  31. Richard, A. Tentamen Flora Abyssinicae (Inst. system. Bot. Uppsala, 1982).

    Google Scholar 

  32. Turrill, W. B. & Milne-Redhead, M. A. (eds) Flora of Tropical East Africa (Crown Agents, London, 1952–82).

  33. Hedberg, O. Symb. Bot. upsal. 15, 1–409 (1957).

    Google Scholar 

  34. Hedberg, O. Svensk. bot. Tidskr. 45, 140–202 (1951).

    Google Scholar 

  35. Bonnefille, R. Pollen et Spores 22, 15–72 (1971).

    Google Scholar 

  36. Bonnefille, R. & Riollet, G. Pollens des Savanes d'Afrique Orientale (CNRS, Paris, 1980).

    Google Scholar 

  37. Pichi-Sermolli, R. & Heiniger, H. Webbia, 9, 9–48 (1953).

    Google Scholar 

  38. Chevalier, A. Bull. Soc. bot. Fr. 70, 855–870 (1923).

    Google Scholar 

  39. Christ, H. Arch. Sci. phys. nat. Genève, 3rd period 28, 369–376 (1892).

    Google Scholar 

  40. Schnell, R. Introduction à la phytogéographie des pays tropicaux. IV La flore et la végétation de de l'Afrique tropicale, part 2 (Gauthier-Villars, Paris, 1977).

    Google Scholar 

  41. Van Zinderen Bakker, E. M. Argumenta geogr. 12, 89–97 (1977).

    Google Scholar 

  42. Good, D. O. The Geography of the Flowering Plants (Longman, London, 1974).

    Google Scholar 

  43. Hedberg, O. Webbia 19, 519–529 (1965).

    Google Scholar 

  44. Bader, F. J. W. Webbia 19, 531–544 (1965).

    Google Scholar 

  45. Lebrun, J. Bull. Jard. bot. Brux. 30, 258–388 (1960).

    Google Scholar 

Download references

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  1. Laboratoire de Géologie du Quaternaire, CNRS, Luminy, 13288, Marseille, Cedex 9, France

    R. Bonnefille

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  1. R. Bonnefille
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Bonnefille, R. Evidence for a cooler and drier climate in the Ethiopian uplands towards 2.5 Myr ago. Nature 303, 487–491 (1983). https://doi.org/10.1038/303487a0

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