Table 4 The taxonomic classification of core OTUs (> 90% of all samples) based on RDP classification (v.10). The results of repeated measures ANOVA of the relative abundance of each OTU is also included. F statistics are included with degrees of freedom (F_{df, dfDen}) where dfDen is the denominator df based on Kenward-Roger first order approximations with Kacker-Harville correction. * p < 0.05, ** p < 0.01, *** p < 0.001. Where significant, partial η² effect sizes are presented parenthetically

 Actinomycetales

Corynebacteriaceae (Corynebacterium)

76

F_3,23.2 = 2.364

F_5,101.7 = 13.511***(0.354)

F_15,100.9 = 1.305

Dermacoccaceae (Dermacoccus)

28

F_3,22.3 = 1.183

F_5,100.0 = 29.749***(0.547)

F_15,99.3 = 2.643**(0.244)

Micrococcaceae (Micrococcus)

31ⁱ

F_3,23.4 = 1.482

F_5,106.2 = 30.343***(0.552)

F_15,105.8 = 1.459

Micrococcaceae (Nesterenkonia)

2^a

24

F_3,18.9 = 0.454

F_3,18.9 = 0.409

F_5,103.6 = 23.845***(0.492)

F_5,100.0 = 23.353***(0.487)

F_15,103.2 = 3.206***(0.281)

F_15,99.6 = 3.253***(0.284)

Propionibacteriaceae (Propionibacterium)

9

F_3,18.9 = 1.270

F_5,99.2 = 16.822***(0.406)

F_15,98.1 = 3.849***(0.319)

 Flavobacteriales

Flavobacteriaceae (Flavobacterium)

15

81

F_3,22.1 = 0.478

F_3,17.6 = 0.396

F_5,99.5 = 9.886***(0.288)

F_5,89.2 = 12.982***(0.345)

F_15,99.0 = 1.387

F_15,88.6 = 0.877

 Bacillales

Bacillales incertae sedis (Caldalkalibacillus)

3^a

26^a

102

F_3,22.1 = 1.657

F_3,22.3 = 2.954

F_3,19.7 = 0.182

F_5,107.6 = 20.691***(0.456)

F_5,109.3 = 19.829***(0.446)

F_5,89.9 = 9.516***(0.279)

F_15,107.2 = 2.807***(0.255)

F_15,108.8 = 2.068*(0.201)

F_15,88.7 = 2.069*(0.201)

Bacillaceae (Bacillus)

29

F_3,21.4 = 1.246

F_5,10,442 = 16.592***(0.402)

F_15,103.9 = 1.998*(0.196)

Bacillaceae (Geobacillus)

100

F_3,20.2 = 2.921

F_5,93.3 = 13.386***(0.352)

F_15,92.6 = 1.267

 Burkholderiales

Alcaligenaceae (Bordetella)

1ⁱ

F_3,22.2 = 0.304

F_5,101.9 = 17.454***(0.415)

F_15,101.6 = 0.889

Comamonadaceae (Delftia)

16ⁱ

F_3,25.0 = 0.793

F_5,107.8 = 14.084***(0.364)

F_15,107.4 = 2.077*(0.202)

Comamonadaceae (Comamonas)

18ⁱ

F_3,23.2 = 1.510

F_5,103.1 = 7.340***(0.229)

F_15,102.3 = 1.731

Comamonadaceae (unclassified)

41

F_3,22.6 = 1.869

F_5,103.7 = 9.564***(0.281)

F_15,103.5 = 1.111

 Pseudomonadales

Moraxellaceae (Acinetobacter)

5ⁱ

20^e

F_3,22.1 = 0.498

F_3,24.7 = 0.724

F_5,105.7 = 11.316***(0.315)

F_5,100.7 = 11.135***(0.311)

F_15,105.3 = 1.139

F_15,100.5 = 1.202

Moraxellaceae (Enhydrobacter)

25

F_3,22.6 = 5.52**^§(0.118)

F_5,109.2 = 12.433***(0.335)

F_15,107.7 = 1.397

Pseudomonadaceae (Pseudomonas)

10ⁱ

F_3,21.6 = 0.634

F_5,97.7 = 7.911***(0.243)

F_15,96.8 = 0.931

 Oceanospirillales

Halomonadaceae (Halomonas)

17^a

F_3,23.3 = 1.485

F_5,108.9 = 26.467***(0.518)

F_15,108.5 = 2.392**(0.225)

 Enterobacteriales

Enterobacteriaceae (Cronobacter)

21ⁱ

F_3,21.9 = 0.623

F_5,102.2 = 12.679***(0.340)

F_15,101.8 = 1.091

 Methylophilales

Methylophilaceae (Methylophilus)

49

F_3,20.7 = 2.291

F_5,94.0 = 5.107***(0.172)

F_15,93.4 = 1.047

 Sphingomonadales

Sphingomonadaceae (Sphingomonas)

52

F_3,22.3 = 1.350

F_5,99.8 = 18.892***(0.434)

F_15,99.3 = 1.227