Local community assembly mechanisms shape soil bacterial β diversity patterns along a latitudinal gradient.

Local community assembly mechanisms shape soil bacterial β diversity patterns along a latitudinal gradient.
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当地群落组装机制沿着纬度梯度塑造土壤细菌β多样性模式

DOI:
10.1038/s41467-020-19228-4
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发表时间:
2020-10-27
影响因子:
16.6
通讯作者:
Schuler J
Schuler J
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Zhang X;Liu S;Wang J;Huang Y;Freedman Z;Fu S;Liu K;Wang H;Li X;Yao M;Liu X;Schuler J

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跨地理梯度的生物多样性模式可能是区域物种库和当地社区集会机制的结果。然而,很少有人做了分离的影响,当地的生态机制的变化,在区域物种池上的细菌多样性模式。在这项研究中,我们比较了来自中国东部沿着纬度梯度的11个地区的660个样地的土壤细菌群落的聚集机制,这些样地具有高度分化的物种库。我们的研究结果表明,β多样性并不与γ多样性共变,当地的社区组装机制似乎可以解释β多样性模式的变化后,校正区域物种池的变化。环境条件沿着纬度梯度的变化通过调节异质选择的强度解释了β多样性的变化。总之,我们的研究清楚地说明了当地社区组装过程在塑造土壤细菌β多样性地理格局中的重要性。
Biodiversity patterns across geographical gradients could result from regional species pool and local community assembly mechanisms. However, little has been done to separate the effects of local ecological mechanisms from variation in the regional species pools on bacterial diversity patterns. In this study, we compare assembly mechanisms of soil bacterial communities in 660 plots from 11 regions along a latitudinal gradient in eastern China with highly divergent species pools. Our results show that β diversity does not co-vary with γ diversity, and local community assembly mechanisms appear to explain variation in β diversity patterns after correcting for variation in regional species pools. The variation in environmental conditions along the latitudinal gradient accounts for the variation in β diversity through mediating the strength of heterogeneous selection. In conclusion, our study clearly illustrates the importance of local community assembly processes in shaping geographical patterns of soil bacterial β diversity.
DOI: 10.1038/ismej.2011.159
发表时间: 2012-05
期刊: The ISME journal
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