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Hydrobiologia

, Volume 596, Issue 1, pp 5–16 | Cite as

The late Pleistocene desiccation of Lake Victoria and the origin of its endemic biota

  • J. C. Stager
  • T. C. Johnson
Opinion paper

Abstract

Lingering debate among evolutionary biologists over whether or not Lake Victoria dried out during the late Pleistocene focuses on perceived conflicts between biological and geological evidence for the age of its endemic species. This article reviews and updates the geophysical and paleoecological evidence for lake-wide desiccation and describes the environmental conditions that aquatic species likely experienced during the low stand. Lake Victoria was at its lowest between 18,000 and 14,000 calendar years ago, and it dried out at least once during that time. There is no evidence of remnant ponds or marshes persisting within the desiccated basin. If such features existed, then they would have been small, shallow, turbid, and/or saline, and therefore markedly different from the lake to which today’s species are adapted. The existence of Lake Victoria’s diverse endemic biota must be reconciled with the incontrovertible geophysical and paleoecological evidence of a ca. 15,000 year age for the lake, and not vice versa.

Keywords

Africa Cichlids Climate Evolution Lake Victoria Speciation 

Notes

Acknowledgements

We thank J. Day, F. Holzfoerster, R. Kendall, E. Michel, D. Ryves, S. Santini, O. Seehausen, and D. Verschuren for helpful comments and information. The U.S. National Science Foundation provided financial support for the analyses and interpretations presented here (ATM-9808972, ATM-0117170, ATM-0401845).

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Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  1. 1.Natural Sciences DivisionPaul Smith’s CollegePaul SmithsUSA
  2. 2.Large Lakes Observatory and Department of Geological SciencesUniversity of Minnesota DuluthDuluthUSA

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