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Table 4 Comparison of diversity indices among vegetation types classified with snow cover duration (week)

From: Assembly processes of moss and lichen community with snow melting at the coastal region of the Barton Peninsula, maritime Antarctic

Properties Taxon Snow cover duration (week) F ratio P
0 2 4 5 6
Number of samples (n) 12 9 7 5 21   
 Alpha diversity (species richness) Total 9.0 4.0 4.0 5.0 1.0   
Lichens 6.0 3.0 3.0 3.0 0.0   
Mosses 3.0 1.0 1.0 1.0 0.0   
Algae 0.0 0.0 0.0 1.0 1.0   
Maximum species density (no./0.25m2) 7.0 4.0 4.0 3.0 1.0   
 Species density (no./0.25m2) Total 3.7 ± 0.6 a 3.2 ± 0.4 a 2.7 ± 0.4 a 2.0 ± 0.3 ab 1.0 ± 0.0 b 14.275 0.000
Lichens 2.9 ± 0.4 a 2.3 ± 0.3 ab 1.7 ± 0.4 b 1.4 ± 0.4 b 0.0 ± 0.0 c 28.224 0.000
Mosses 0.8 ± 0.3 a 0.9 ± 0.1 a 1.0 ± 0.0 a 0.6 ± 0.2 ab 0.0 ± 0.0 b 10.855 0.000
 Species diversity (H′) Total 0.8 ± 0.2 a 0.8 ± 0.1 a 0.7 ± 0.1 a 0.4 ± 0.1 ab 0.0 ± 0.0 b 17.142 0.000
Lichens 0.7 ± 0.1 a 0.5 ± 0.1 ab 0.3 ± 0.1 abc 0.1 ± 0.1 bc 0.0 ± 0.0 c 11.311 0.000
Mosses 0.1 ± 0.1 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.844 0.504
 Evenness (J′) Total 0.7 ± 0.1 0.8 ± 0.0 0.7 ± 0.1 0.5 ± 0.0 1.775 0.178
Lichens 0.7 ± 0.1 0.7 ± 0.1 0.7 ± 0.2 0.4 ± 0.0 0.561 0.648
Mosses 0.6 ± 0.0 NV
 Dominant index (C) Total 0.6 ± 0.1 a 0.5 ± 0.1 a 0.6 ± 0.1 a 0.8 ± 0.1 ab 1.0 ± 0.0 b 18.560 0.000
Lichens 0.6 ± 0.1 a 0.7 ± 0.1 ab 0.8 ± 0.1 ab 0.9 ± 0.1 b 0.0 ± 0.0 c 55.722 0.000
Mosses 0.5 ± 0.1 a 0.9 ± 0.1 ab 1.0 ± 0.0 b 0.6 ± 0.2 ab 0.0 ± 0.0 c 21.186 0.000
  1. According to Tukey’s test, columns are statistically different where they do not share any letter (P < 0.05)
  2. NV no variation in dependent variable