Meny

Javascript verkar inte påslaget? - Vissa delar av Lunds universitets webbplats fungerar inte optimalt utan javascript, kontrollera din webbläsares inställningar.
Du är här

Fecundity selection does not vary along a large geographical cline of trait means in a passerine bird

Författare:
  • Päivi M. Sirkiä
  • Peter Adamik
  • Alexandr V. Artemyev
  • Eugen Belskii
  • Christiaan Both
  • Stanislav Bures
  • Malcolm Burgess
  • Andrey V. Bushuev
  • Jukka T. Forsman
  • Vladimir Grinkov
  • Dieter Hoffmann
  • Antero Jaervinen
  • Miroslav Kral
  • Indrikis Krams
  • Helene M. Lampe
  • Juan Moreno
  • Marko Maegi
  • Andreas Nord
  • Jaime Potti
  • Pierre-Alain Ravussin
  • Leonid Sokolov
  • Toni Laaksonen
Publiceringsår: 2015
Språk: Engelska
Sidor: 808-827
Publikation/Tidskrift/Serie: Biological Journal of the Linnean Society
Volym: 114
Nummer: 4
Dokumenttyp: Artikel i tidskrift
Förlag: Linnean Society of London

Abstract english

Local environmental and ecological conditions are commonly expected to result in local adaptation, although there are few examples of variation in phenotypic selection across continent-wide spatial scales. We collected standardized data on selection with respect to the highly variable plumage coloration of pied flycatcher (Ficedula hypoleucaPall.) males from 17 populations across the species' breeding range. The observed selection on multiple male coloration traits via the annual number of fledged young was generally relatively weak. The main aim of the present study, however, was to examine whether the current directional selection estimates are associated with distance to the sympatric area with the collared flycatcher (Ficedula albicollisTemminck), a sister species with which the pied flycatcher is showing character displacement. This pattern was expected because plumage traits in male pied flycatchers are changing with the distance to these areas of sympatry. However, we did not find such a pattern in current selection on coloration. There were no associations between current directional selection on ornamentation and latitude or longitude either. Interestingly, current selection on coloration traits was not associated with the observed mean plumage traits of the populations. Thus, there do not appear to be geographical gradients in current directional fecundity selection on male plumage ornamentation. The results of the present study do not support the idea that constant patterns in directional fecundity selection would play a major role in the maintenance of coloration among populations in this species. By contrast, the tendency for relatively weak mosaic-like variation in selection among populations could reflect just a snapshot of temporally variable, potentially environment-dependent, selection, as suggested by other studies in this system. Such fine-grained variable selection coupled with gene flow could maintain extensive phenotypic variation across populations.(c) 2015 The Linnean Society of London, Biological Journal of the Linnean Society, 2015, 114, 808-827.

Keywords

  • Ecology

Other

Published
  • ISSN: 0024-4066
Andreas Nord
E-post: andreas [dot] nord [at] biol [dot] lu [dot] se

Forskare

Evolutionär ekologi

+46 70 495 32 62

C255

Ekologihuset, Sölvegatan 37, Lund

50

Forskargrupp

Livshistoria och funktionell ekologi

Doktorander och postdocs

Doktorand, biträdande handledare

Fredrik Andreasson