TABLE 3.
Boundary categories and cover and height values selected for PERMANOVA, tests for homogenous in‐group dispersion, Chi square and Spearman‐rank tests for correlations and PERMANOVA results. Levels of significance: ***p<0.001; **p<0.01; p<0.05. All p values smaller than 0.05 are marked bold.
| Crop edge subset (CE) | |||||
|---|---|---|---|---|---|
| Category/variable | Hom. in‐group dispersion | Correlated with | Cramers V | Chi square p value | PERMANOVA R 2 and p value |
| Pos_Field | Yes | — | — | — | R 2 = 0.014, p = 0.001*** |
| Mowing | Yes | Road | 0.37 | 0.000 | — |
| Road | Yes |
Mowing Water |
0.37 0.25 |
0.000*** 0.000*** |
R 2 = 0.012, p = 0.002** |
| Water | Yes |
Road Trees |
0.25 0.2 |
0.0000*** 0.000*** |
R 2 = 0.007, p = 0.016* |
| Trees | Yes | Water | 0.2 | 0.000*** | R 2 = 0.009, p = 0.007** |
| Hedge | Yes | Trees | 0.14 | 0.040* | R 2 = 0.004, p = 0.578 |
| Spearman‐rank corr. coefficient | Spearman‐rank p value | ||||
| Cov_herbs | — |
Cov_crop Herb_high |
−0.451 0.542 |
0.000*** 0.000*** |
R 2 = 0.042, p = 0.001*** |
| Herb_high | — | Cov_herbs | 0.542 | 0.000*** | |
| Cov_crop | — | Crop_high | 0.345 | 0.000*** | |
| Crop_high | — | Cov_crop | 0.345 | 0.000** | R 2 = 0.015, p = 0.001*** |
| Field margin subset (FM) | |||||
| Pos_Field | Yes | — | — | — | R 2 = 0.03, p = 0.001*** |
| Mowing | Yes |
Road Trees |
0.36 0.16 |
0.000*** 0.010** |
|
| Road | Yes |
Mowing Water |
0.36 0.26 |
0.000** 0.000*** |
R 2 = 0.03, p = 0.001*** |
| Water | Yes |
Road Trees |
0.26 0.2 |
0.000*** 0.002** |
R 2 = 0.01, p = 0.004** |
| Trees | Yes |
Mowing Water |
0.16 0.2 |
0.010** 0.002** |
R 2 = 0.01, p = 0.016* |
| Spearman‐rank corr. coefficient | Spearman‐rank p | ||||
| Herbs_high | — | Cov_herbs | 0.33 | 0.000*** | R 2 = 0.03, p = 0.001*** |
| Cov_herbs | — | Herbs_high | 0.33 | 0.000*** | |