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Message: <blockquote data-quote="Daniel Philippe" data-source="post: 1945889" data-attributes="member: 64614">May be, but here is what Pierre-André Crochet (Birding World 17 (9): 354·355) writes after reading Zink et al. 2003:"Nevertheless, two weakly supported clades separated the northern Eurasian samples from those of southern & central Eurasia. The northern clade included most samples of svecica, while the specimens of the other subspecies mostly fell in the southern clade, but there was still some mixture between these two clades. Some svecica specimens carrying lineages of the southern clade were found in central Asia, near the contact zone between both clades, but also well away from this contact area in Finland and northern Russia (north to Yamal). Several specimens carrying variants of the northern clade were also found in forms where mostly southern lineages were identified.Thus, in Bluethroat, there is no strict association between geography and mitochondrial DNA, nor between subspecies and mitochondrial DNA. Furthermore, no subspecies or group of subspecies form strictly monophyletic units and there is no evidence of ancient divergence."</blockquote>