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How different are willow warblers?

- New data from yakutensis reveal morphological and genetic differentiation within the Eurasian range. This was published in a recent paper in Journal of Ornithology by Sokolovskis et al.
willow warbler
Photo: Harald Ris

Willow Warblers (Phylloscopus trochilus) have been extensively studied in Europe, however the species breeds across entire Eurasia and knowledge of far eastern populations up til now has been based almost exclusively on museum skins. In this study we visited far NE Russia (Chaun river delta) and collected the precious information on willow warblers of the subspecies yakutensis from the other end of Eurasia. In this study we put collected phenotypic (morphometrics, colouration), genetic and stable isotope data in context of what is known of the different European subspecies of willow warblers. In this new study we discuss phylogeography and population history of willow warblers, as well as pros and cons when using subspecies as a taxa.

/Kristaps Sokolovskis

To the paper "Phenotypic and genetic characterization of the East Siberian Willow Warbler (Phylloscopus trochilus yakutensis Ticehurst, 1935) in relation to the European subspecies" in Journal of Ornithology.
Authors: Kristaps Sokolovskis, Max Lundberg, Miriam Liedvogel, Diana Solovyeva, Susanne Åkesson, Mikkel Willemoes, Staffan Bensch.

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How different are willow warblers?

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Centre for Animal Movement Research
Evolutionary Ecology, Department of Biology
Ecology building S-223 62 Lund Sweden