Table 2.
Summary statistics (mean, standard deviation and variable importance in the species distribution model; SDM) of each explanatory variable constructed using the same dataset as used in the SDMs (see text). Only confirmed hybrids from this study were used.
| DEM | SLO | ASP | CUR | SR | TWI | ROU | VDC | SWI | TPI | D2E | CH | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| O. calthifolia (n = 266) | 596.4 (45.9) | 29.7 (13.8) | 185.3 (77.5) | −9. (42.6) | 1119649.3 (249687.5) | 3.9 (1.5) |
1.1 (1.3) |
0.4 (0.8) | 1.0 (1.0) | 10.8 (10.7) | 4.7 (6.2) | 1.9 (2.5) |
| 73.7% | 0.3% | 0.3% | 0.0% | 1.5% | 0.1% | 0.3% | 0.0% | 0.5% | 1.2% | 14.4% | 7.8% | |
| O. marchantii (n = 151) | 416.8 (134.9) | 13.2 (8.7) | 141.5 (71.4) | −2.8 (7.7) | 1274897.9 (152906.1) | 5.6 (2.0) | 0.37 (0.3) | 0.1 (0.2) | 2.6 (0.9) | −2.5 (3.1) | 53.9 (95.7) | 11.1 (9.6) |
| 29.3% | 12.7% | 4.8% | 0.3% | 1.9% | 0.5% | 1.0% | 0.7%. | 2.9% | 21.7% | 14.0% | 10.2% | |
|
Hybrids (n = 32) |
608.6 (17.8) | 21.9 (10.6) | 152.8 (26.7) | −16.6 (24.6) | 1100719 (161067) | 5.3 (2.4) | 0.65 (0.38) | 0.01 (0.03) | 1.3 (0.7) | −3.4 (4.7) | 3.8 (4.4) | 2.3 (1.6) |
Explanatory variables are elevation (DEM), slope (SLO), aspect (ASP), curvature (CUR), annual solar radiation (SR), topographic wetness index (TWI), roughness (ROU), vertical distance to channel network (VDC), SAGA wetness index (SWI), topographic position index (TPI), distance to edges (D2E) and canopy height (CH).