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Contrasting elevational diversity patterns 海拔多样性.pdf

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Contrasting elevational diversity patterns 海拔多样性

Ecology, 95(11), 2014, pp. 3190–3202 2014 by the Ecological Society of America Contrasting elevational diversity patterns between eukaryotic soil microbes and plants CONGCONG SHEN,1,3 WENJU LIANG,2 YU SHI,1,3 XIANGUI LIN,1 HUAYONG ZHANG,1 XIAN WU,4 GARY XIE,5 PATRICK CHAIN,5 PAUL GROGAN,6 AND HAIYAN CHU1,7 1State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, East Beijing Road 71, Nanjing 210008 China 2State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110164 China 3University of Chinese Academy of Sciences, Beijing 100049 China 4College of Forestry, Beijing Forestry University, Beijing 100083 China 5Los Alamos National Laboratory, Los Alamos, New Mexico 87544 USA 6Department of Biology, Queen’s University, Kingston, Ontario K7L3N6 Canada Abstract. The diversity of eukaryotic macroorganisms such as animals and plants usually declines with increasing elevation and latitude. By contrast, the community structure of prokaryotes such as soil bacteria does not generally correlate with elevation or latitude, suggesting that differences in fundamental cell biology and/or body size strongly influence diversity patterns. To distinguish the influences of these two factors, soil eukaryotic microorganism community structure was investigated in six representative vegetation sites along an elevational gradient from forest to alpine tundra on Changbai Mountain in Northeast China, and compared with our previous determination of soil bacterial community structure along the same gradient. Using bar-coded pyrosequencing, we found strong site differences in eukaryotic microbial community composition. However, diversity of the total eukaryotic microorganism community (or just the fungi or protists alone) did not correlate with elevation. Instead, the patterns of diversity and composition in the total eukaryotic microbial community (and in the protist community