Table 3. Independent axial coordinates, with the corresponding eigen value, percentage of explained variation and cumulative value

PCoA

eigen value

percent of variation

cumulative value

1

6.26747712

21.2401

21.2401

2

5.96033594

20.1992

41.4393

3

2.23532385

7.5754

49.0147

4

2.01495539

6.8286

55.8433