Table 2 Summary of variables contributing to intra-, and inter-specific bacterial community structure variation. Variation partition using PERMANOVA on Bray–Curtis distance on Hellinger-transformed reads. Testing was done “by margin”, using 999 permutations. For inter-specific bacterial community variation, pairwise PERMANOVA was also performed. Variable selection was performed using ordistep() prior to PERMANOVA analyses
From: Forest top canopy bacterial communities are influenced by elevation and host tree traits
Permanova | |||||
|---|---|---|---|---|---|
Variable | R2 | F | DF | p-value | |
Intra-specific: spruce | Elevation | 0.05 | 4.05 | 1 | < 0.01 |
Chlorophyll | 0.04 | 3.38 | 1 | < 0.01 | |
LMA | 0.03 | 2.75 | 1 | < 0.01 | |
Water content | 0.03 | 2.72 | 1 | < 0.01 | |
DBH | 0.03 | 2.31 | 1 | < 0.01 | |
Residual | 0.81 | 64 | |||
Total | 1.00 | 69 | |||
Intra-specific: beech | Elevation | 0.09 | 8.10 | 1 | < 0.01 |
P | 0.04 | 3.53 | 1 | < 0.01 | |
Ca | 0.03 | 3.03 | 1 | < 0.01 | |
N | 0.03 | 2.71 | 1 | < 0.01 | |
DBH | 0.02 | 1.81 | 1 | 0.04 | |
Mg | 0.02 | 1.94 | 1 | 0.02 | |
Residual | 0.76 | 68 | |||
Total | 1.00 | 74 | |||
Inter-specific: Veluwe | Host species | 0.48 | 11.94 | 3 | < 0.01 |
Inter-specific: Bavaria | Host species | 0.31 | 65.92 | 1 | < 0.01 |