青藏高原高寒区生物地理学研究进展

近年来,随着DNA测序技术的发展,青藏高原及周边地区的生物地理学研究取得重大成果,从生物演化方面着手探讨了青藏高原隆升历史及其气候效应.综合近年来地质学、古生物学与生物地理学研究进展,我们发现高原及周边地区高寒生物类群的起源和分化时间以及多样性演化过程表明早在渐新世青藏高原部分地区就已经存在高寒生态系统,晚中新世以来青...

The advances in biogeography research on Tibetan Plateau alpine bioregion

In recent years， with the development of DNA sequencing technology， biogeography research on the Tibetan Plateau and surrounding areas has provided us with biological evidence for understanding the plateau uplift and its climatic effects. Based on recent advances in geology and biogeography， the origin of alpine biota in the plateau and surrounding areas suggests that alpine ecosystems existed in parts of the Tibetan Plateau as early as the Oligocene， and the geomorphology and climate of the Tibetan Plateau have undergone major changes since the late Miocene. The ancestors of these alpine species migrated to the rapidly rising plateau or evolved in situ endemic species adaptation to high-elevation habitats. The accelerated differentiation and formation of species since the late Pliocene may result from glacial action and geographical isolation， which caused by the formation of the huge plateau mountain and river system. The alpine biota of the Tibetan Plateau and surrounding areas are closely related to the high latitudes of the Northern Hemisphere. Biogeography research also indicated that no large ice sheet covered the entire Tibetan Plateau and there are still nature refuges on the plateau during the Quaternary. Geology， paleontology， and evolutionary biology should be integrated in a holistic way in order to fully understand the history of the uplift of the Tibetan Plateau and its climatic effects.