Improved sampling at the subspecies level solves a taxonomic dilemma - A case study of two enigmatic Chinese tit species (Aves, Passeriformes, Paridae, Poecile)
文摘
Increased density of subspecific taxon sampling and clarifies species relationships. According to DNA analysis of type specimens P. weigoldicus is sister to P. montanus. P. hypermelaenus is not closely related to P. montanus but is sister to P. palustris. Mitochondrial introgression among P. hypermelaenus and Chinese P. palustris. P. songarus is paraphyletic and should not be regarded as a species of its own. Congruent patterns of biometric and genetic differentiation in P. palustris.