Evgeniy A. Koblik

TL;DR: The winter wren has a much greater degree of inter– and intracontinental differentiation than the three other Holarctic birds studied to date—dunlin, common raven and three–toed woodpecker—and represents an example of cryptic speciation that has been overlooked.

TL;DR: It is proposed that a phylogenetic analysis of morphology and ecological preferences would show that the current taxonomy of grass and bush warblers reflects species’ habitat preferences and morphology related to locomotion and foraging in their habitats, rather than their shared ancestry.

TL;DR: Zink et al. as mentioned in this paper analyzed sequences of two mitochondrial DNA (mtDNA) gene regions (controlregion and ND2) totaling 1477 base-pairs from 232 specimens of the white wagtailMotacilla alba obtained from 27 localities throughout Eurasia.

TL;DR: The multilocus nuDNA species tree resolved all inter- and intraspecific relationships despite substantial introgression, and the node ages on the species tree may be underestimated as suggested by the differences in node age estimates based on non-introgressing mtDNA and introgressing nuDNA.

TL;DR: The results support Hewitt's paradigm for effects of Pleistocene glaciations on European populations and suggest that in highly dispersive taxa, isolation of neighbouring refugia was incomplete, resulting in large super-refugial populations.