关键词: 南岭, β多样性, 谱系构成, 鸟类, 动物地理分界

Abstract: How to divide the world into biogeographical regions is a long concerned issue and recently intrigues the research interest because rich data about phylogeny and traits of taxa has been gained nowadays. β-diversity patterns was applied, based on 46 places located in 3 subregions (one belongs to South China and two belong to Central China) of Chinese animal geography, to re-analyze the robustness of setting Nanling Mountain Ranges as part of the boundaries between Central and South China. The results revealed that: 1) the taxonomic and phylogenetic dissimilarities among the three subregions were small and dissimilarities related to nestedness and species turnover had varied contributions to the distances between assemblages of three subregions; 2) resident birds, summer breeders and wintering birds affected the β diversity patterns differently; the dissimilarities were strong when analyzing the assemblages of resident birds and they became weaker when counting the summer and winter visitors; 3) in the eastern-western direction remarkable phylogenetic distance happened between places far from each other; in the northern-southern direction great phylogenetic distance happened between far and neighboring locations. The results above indicated that the phylogenetic structures of bird assemblages changed beyond expectations from south to north side of the Nanling Mountains, which suggests that it is reasonable to treat the Nanling Mountain ranges as part of the border between Central and South China of animal geography.

Key words: the Nanling Mountains, β-diversity, phylogenetic dissimilarities, birds, animal geography