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Sympatric divergence and clinal variation in multiple coloration traits of Ficedula flycatchers

Author:
  • Toni Laaksonen
  • Päivi Sirkiä
  • Sara Calhim
  • Jon E. Brommer
  • Alexander V. Artemyev
  • Eugen Belskii
  • Christiaan Both
  • Stanislav Bures
  • Malcolm Burgess
  • Blandine Doligez
  • Jukka T. Forsman
  • V. Grinkov
  • U. Hoffmann
  • E. Ivankina
  • N. Král
  • Indrikis Krams
  • Helena Maria Lampe
  • Juan Moreno
  • Marko Mägi
  • Andreas Nord
  • Jaime Potti
  • Pierre-Alain Ravussin
  • Leonid Sokolov
Publishing year: 2015
Language: English
Pages: 779-790
Publication/Series: Journal of evolutionary biology
Volume: 28
Issue: 4
Document type: Journal article
Publisher: John Wiley & Sons

Abstract english

Geographic variation in phenotypes plays a key role in fundamental evolutionary processes such as local adaptation, population differentiation and speciation, but the selective forces behind it are rarely known. We found support for the hypothesis that geographic variation in plumage traits of the pied flycatcher Ficedula hypoleuca is explained by character displacement with the collared flycatcher F. albicollis in the contact zone. The visual plumage traits of the pied flycatcher differed strongly from the more conspicuous collared flycatcher in a sympatric area but increased in conspicuousness with increasing distance to there. Phenotypic differentiation (PST ) was higher than that in neutral genetic markers (FST ) and the effect of geographic distance remained when statistically controlling for neutral genetic differentiation. This suggests that a cline created by character displacement and gene flow explains phenotypic variation across the distribution of this species. The different plumage traits of the pied flycatcher are strongly to moderately correlated, indicating that they evolve together. The flycatchers provide an example of plumage patterns diverging in two species that differ in several aspects of appearance. The divergence in sympatry and convergence in allopatry in these birds provides a possibility to study the evolutionary mechanisms behind the highly divergent avian plumage patterns.

Keywords

  • Biological Sciences

Other

Published
  • ISSN: 1420-9101
Andreas Nord
E-mail: andreas [dot] nord [at] biol [dot] lu [dot] se

Researcher

Evolutionary ecology

+4746143537

Ekologihuset, Sölvegatan 37, Lund

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