Temporal and spatial comparisons of angiosperm diversity between eastern Asia and North America


  作  者:Hu HH, Ye JF, Liu B, Mao LF, Smith SA, Barrett RL, Soltis PS, Soltis DE, Chen ZD, Lu LM*


  刊物名称:National Science Review


  卷:9 期:6 页码:nwab199


  Comparative approaches that examine floras with similar environments, but different diversity patterns, provide good opportunities to elucidate how uneven distributions of biodiversity were assembled. Eastern Asia (EA) and North America north of Mexico (NA; see definitions of EA and NA in Fig. S1A) share similar geographical environments with comparable latitude, land area and climate, except that NA has a coastline in the west. The two regions harbor more than 12% of all angiosperm species in the world and cover six biodiversity hotspots (Fig. S1A) . However, the number of vascular plant species in EA is at least 1.5 times larger than in NA . Detailed comparative study of the floras in EA and NA therefore affords an ideal test case for exploring processes that contribute to this highly uneven distribution of plant diversity.




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