The global diversification of songbirds (Oscines) and the build-up of the Sino-Himalayan diversity hotspot

鸣禽(鸣禽亚目)的全球多样化及中国-喜马拉雅地区多样性热点的形成(英文)

Over the last decade, molecular phylogenetic studies have provided the foundation for a comprehensive analysis of the global diversification of songbirds (Oscines), which comprise nearly half of all the birds of the world. By comparing the spatial distribution of species representing basal and terminal root-path groups, this paper provides graphical illustrations of the global pattern of diversification for the major songbird clades. The worldwide expansion of songbirds started as an island radiation in the area where New Guinea is now located, but the mountains of southern China represent a principal center for more recent diversification. The paper suggests priorities and perspectives for further research aiming to understand what determines the variation in biodiversity on different spatial scales.

鸣禽(鸣禽亚目)鸟类约占世界鸟类种数的一半。过去的十多年里,分子系统发育研究为全面了解鸣禽的全球多样化奠定了良好的基础。通过比较祖裔分支类群代表性鸟种的空间分布,本文以图解法阐述了鸣禽主要分支的全球多样化格局。鸣禽的全球扩散始于现新几内亚所处地域的岛屿辐射,而中国南部的山区则更多地代表了近期多样化的中心。本文建议了进一步了解不同空间尺度上的生物多样性变化影响因素的研究重点。