西藏横断山区溪流细菌beta多样性组分对气候和水体环境的响应

[an error occurred while processing this directive]

李明家¹^,², 吴凯媛¹^,³, 孟凡凡¹^,², 沈吉¹^,², 刘勇勤²^,⁴, 肖能文⁵^,^*(

), 王建军¹^,²^,^*(

)

Beta diversity of stream bacteria in Hengduan Mountains: The effects of climatic and environmental variables

Mingjia Li¹^,², Kaiyuan Wu¹^,³, Fanfan Meng¹^,², Ji Shen¹^,², Yongqin Liu²^,⁴, Nengwen Xiao⁵^,^*(

), Jianjun Wang¹^,²^,^*(

)

图1. 本研究在澜沧江和怒江的89条入江溪流的采样点。(a)研究区位于青藏高原东南部生物多样性热点地区。总共有37条采样溪流流入澜沧江(即澜沧江流域), 52条采样溪流流入怒江(即怒江流域)。NMDS图显示了两个流域中细菌总beta多样性(b)、周转组分(c)和嵌套组分(d)的差异。红色点和黑色点分别代表澜沧江和怒江流域的采样点。* P ≤ 0.05; ** P ≤ 0.01; *** P ≤ 0.001。

Fig. 1. The sample sites of this study along the 89 streams of Lancang River and the Nujiang River. (a) The study area is located in the biodiversity hotspot of south-eastern Tibetan Plateau. In total, 37 streams flow into the Lancang River, while 52 sampled streams flow into the Nujiang River. NMDS plots illustrate the differences in bacterial total beta diversity (b), turnover (c) and nestedness components (d) across the Lancang and Nujiang catchments. The red dots and black dots indicate the sample sites in Langcang and Nujiang catchment, respectively. * P ≤ 0.05; ** P ≤ 0.01; *** P ≤ 0.001.