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The strange case of East African annual fishes: aridification correlates with diversification for a savannah aquatic group?

Authors
  • Dorn, Alexander
  • Musilová, Zuzana
  • Platzer, Matthias
  • Reichwald, Kathrin
  • Cellerino, Alessandro
Type
Published Article
Journal
BMC Evolutionary Biology
Publisher
Springer (Biomed Central Ltd.)
Publication Date
Jan 01, 2014
Volume
14
Pages
210–210
Identifiers
DOI: 10.1186/s12862-014-0210-3
PMID: 25311226
Source
Medline
License
Unknown

Abstract

The mechanism of Nothobranchius diversification was allopatric and driven by geographic isolation. We propose a scenario where diversification of Nothobranchius started in rough coincidence with aridification of East Africa, establishment of grassland habitats and the appearance of the typical African bovid fauna of the savannah. Although confidence intervals for the estimated ages of the four Nothobranchius clades are quite large, this scenario is compatible with the biology of extant Nothobranchius that are critically dependent on savannah habitats. Therefore, Nothobranchius diversification might have been shaped by the same paleoclimatic events that shaped African ungulate evolution.

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