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Author's personal copy

Ann Microbiol (2015) 65:1–13 5

a
1.8

Faraglioni-shore-line
1.5
Faraglioni-shore-line
1.2
Faraglioni-shore-line
0.9 Organic Carbon
Faraglioni-mid-line
Axis 2 0.6 Faraglioni-mid-line Faraglioni-mid-line
Faraglioni-upper-line
Humidity 0.3 Faraglioni-upper-line
Faraglioni-upper-line
-2.0 -1.6 -1.2 -0.8 -0.4 0.4 0.8 1.2 1.6
Lido_Burrone-shore-line Praja-shore-line Praja-shore-line Lido_Burrone-upper-line
-0.3 Lido_Burrone-upper-line
Lido_Burrone-upper-line
Praja-shore-line
Praja-mid-line Lido_Burrone-mid-line
Lido_Burrone-shore-line Praja-mid-line Lido_Burrone-mid-line
-0.6
Lido_Burrone-shore-line Lido_Burrone-mid-line Praja-upper-line
Praja-mid-line
Praja-upper-line
-0.9 Praja-upper-line
Axis 1
b
Jaccard similarity 0.7 0.8 0.9

0.2
1
0.3
0.6
0.5
0.4
Praja-shore-line
Praja-shore-line
Praja-shore-line
Praja-mid-line
Lido_Burrone-shore
Praja-mid-line
Praja-mid-line
Lido_Burrone-shore
Lido_Burrone-shore
Praja-upper-line
Praja-upper-line
Praja-upper-line
Lido_Burrone-mid-line
Lido_Burrone-mid-line
Lido_Burrone-mid-line
Faraglioni-shore-line
Faraglioni-shore-line
Faraglioni-shore-line
Faraglioni-mid-line
Faraglioni-mid-line
Faraglioni-mid-line
Lido_Burrone-upper-line
Lido_Burrone-upper-line
Faraglioni-upper-line
Lido_Burrone-upper-line
Faraglioni-upper-line
Faraglioni-upper-line
Fig. 1 Pattern of ordination of 16S rRNA bacterial community T-RFLP Lido Burrone; squares, mid-line samples; circles, shore-line samples;
profiles. a Nonmetric Muldimensional Scaling (nMDS); b) UPGMA triangles, upper-line samples. Black-filled symbols, Faraglioni, grey-filled
clustering. Cophenetic correlation coefficient=0.9098. In CCA each symbols, Lido Burrone; white-filled symbols, Praja. Vectors for humidity
point represents a DNA sample for the beaches of Faraglioni, Praja and (%) and organic carbon (%) are reported

different localities (beaches) were detected, in particular when dendrogram highlighted a strong differentiation of Faraglioni
cluster analysis was applied (Fig. 1b). In fact, UPGMA beach samples from Lido Burrone and Praja samples. In