A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Sympatric divergence and clinal variation in multiple coloration traits of Ficedula flycatchers
Tekijät: Laaksonen T, Sirkia PM, Calhim S, Brommer JE, Leskinen PK, Primmer CR, Adamik P, Artemyev AV, Belskii E, Both C, Bures S, Burgess MD, Doligez B, Forsman JT, Grinkov V, Hoffmann U, Ivankina E, Kral M, Krams I, Lampe HM, Moreno J, Magi M, Nord A, Potti J, Ravussin PA, Sokolov L
Kustantaja: Wiley-Blackwell
Julkaisuvuosi: 2015
Journal: Journal of Evolutionary Biology
Tietokannassa oleva lehden nimi: JOURNAL OF EVOLUTIONARY BIOLOGY
Lehden akronyymi: J Evolution Biol
Vuosikerta: 28
Numero: 4
Aloitussivu: 779
Lopetussivu: 790
Sivujen määrä: 12
ISSN: 1010-061X
DOI: https://doi.org/10.1111/jeb.12604
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 Ficedula albicollis in the contact zone. The 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 (P-ST) was higher than that in neutral genetic markers (F-ST), 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 non-independently from each other. 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 provide a possibility to study the evolutionary mechanisms behind the highly divergent avian plumage patterns.