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Ecological Processes

Table 1 Hypothesis testing of alpha diversity indexes

From: Homogeneous selection is not always important in bacterial community in the eutrophic enclosed bay

p values

Mann–Whitney U test

Kruskal–Wallis test

Spring

Summer

Autumn

Winter

Surface

Bottom

OTU richness

0.098

0.003**

0.202

0.389

0.131

0.001**

ACE

0.067

0.000***

0.106

0.343

0.011*

0.000***

Chao1

0.089

0.000***

0.061

0.233

0.008**

0.000***

Simpson index

0.935

0.161

0.267

0.539

0.000**

0.000***

Pielou’s evenness

0.486

0.098

0.683

0.567

0.000**

0.001**

Shannon index

0.285

0.045*

0.461

0.412

0.027*

0.006**

  1. The Mann–Whitney U test was applied to test the difference between the indexes of surface and bottom water samples in the same season. The Kruskal–Wallis test was applied to test the difference among seasons at the same depth
  2. ***p < 0.001, **p < 0.01, *p < 0.05
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