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. 2021 May 5;15(10):3034–3049. doi: 10.1038/s41396-021-00985-z

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© The Author(s) 2021

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Fig. 4 — The number of samples (n) included for each BACL are indicated by the left-most column. Results stem from conditioned redundancy analyses. The PCNM variables represent the spatial relationship between sampling sites, reflecting pairwise geographic distances (shortest waterway distance). R² values are colored from blue to red; only significant correlations are shown (p < 0.05).