Abstract：
:The exceptionally broad species diversity of vascular plant genera in east Asian temperate forests, compared with their sister taxa in North America, has been attributed to the greater climatic diversity of east Asia, combined with opportunities for allopatric speciation afforded by repeated fragmentation and coalescence of populations through Late Cenozoic ice-age cycles. According to Qian and Ricklefs, these opportunities occurred in east Asia because temperate forests extended across the continental shelf to link populations in China, Korea and Japan during glacial periods, whereas higher sea levels during interglacial periods isolated these regions and warmer temperatures restricted temperate taxa to disjunct refuges. However, palaeovegetation data from east Asia show that temperate forests were considerably less extensive than today during the Last Glacial Maximum, calling into question the coalescence of tree populations required by the hypothesis of Qian and Ricklefs.
journal_name
Naturejournal_title
Natureauthors
Harrison SP,Yu G,Takahara H,Prentice ICdoi
10.1038/35093166keywords:
subject
Has Abstractpub_date
2001-09-13 00:00:00pages
129-30issue
6852eissn
0028-0836issn
1476-4687pii
35093166journal_volume
413pub_type
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