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Table 1 Pairwise statistical comparison of similarity (ANOSIM, 10,000 permutations) for samples from the bacterial and the archaeal sample groups respectively for a given reactor (fermenter or post digester) and the indicated two time phases

From: Process parameters and changes in the microbial community patterns during the first 240 days of an agricultural energy crop digester

Compartment

Pairs

Methanogenic archaea

Eubacteria

R value

p value  (%)

R value

p value  (%)

Fermenter

Phase I–phase II

0.373

0.02

0.709

0.01

Fermenter

Phase II–phase III

0.561

0.01

0.527

0.04

Fermenter

Phase III–phase IV

0.522

0.01

0.457

0.01

Post digester

Phase I–phase II

0.304

0.60

0.565

0.01

Post digester

Phase II–phase III

0.240

1.60

0.231

0.10

Post digester

Phase III–phase IV

0.496

0.02

0.306

0.50