Table 1 Comparative analysis among all variables (leaf carbon, leaf nitrogen and C:N ratio) and multiple comparisons (pairwise comparisons) ofthe following treatments: (T1) leaves of native species from plots without Periandra mediterranea and no invasion; (T2) leaves of P. mediterranea in plots with native species and no invasion; (T3) leaves of Melinis minutiflora in plots with ≤50% invasion, native species and P. mediterranea; (T4) leaves of Melinis minutiflora in plots with >50% invasion,native species and P. mediterranea. Means in bold are significantly different according to the Kruskal-Wallis test at 5% confidence level (p ≤ 0.05) and multiple comparisons by the Nemenyi test.
Treatments | Mean | P-value | P- value -Multiple comparisons | ||||
|---|---|---|---|---|---|---|---|
Leaf carbon (%) | T1 | 46.68 | 0.007 | T1 | T2 | T3 | |
T2 | 48.11 | T2 | 0.535 | — | — | ||
T3 | 45.02 | T3 | 0.359 | 0.015 | — | ||
T4 | 44.84 | T4 | 0.411 | 0.020 | 0.999 | ||
Leaf nitrogen (%) | T1 | 1.37 | 0.000 | T1 | T2 | T3 | |
T2 | 1.97 | T2 | 0.138 | — | — | ||
T3 | 0.89 | T3 | 0.070 | 0.000 | — | ||
T4 | 0.96 | T4 | 0.335 | 0.000 | 0.872 | ||
Leaf C: N | T1 | 36.06 | 0.000 | T1 | T2 | T3 | |
T2 | 24.71 | T2 | 0.159 | — | — | ||
T3 | 51.68 | T3 | 0.052 | 0.000 | — | ||
T4 | 47.35 | T4 | 0.359 | 0.001 | 0.795 | ||
