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. 2016 Apr 19;6:24711. doi: 10.1038/srep24711

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Copyright © 2016, Macmillan Publishers Limited

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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Venn-diagrams showing the results of variation partitioning performed on (a) Geographical model (PCNM_G), Topographic model (PCNM_T) and directional spatial model (AEM), (b) PCNM_G and PCNM_T, (c) PCNM_G and AEM, (d) PCNM_T and AEM for benthic diatom metacommuntiy in the study area. Variation explained uniquely and jointly, and the unexplained fractions were shown as the number in each part of the figures (total variation = 1). The significance of each testable fraction was expressed as ^*P < 0.05, ^**P < 0.01, ^***P < 0.001.