TABLE 3.
Statistical properties of RDA models, using third‐corner approach to relate the ordination axes from models relating the distribution of 1386 butterfly species in 36 Indian federal states and union territories to predictors describing the states (summarised in Table 2), to life history traits of the butterflies. The models are visualised at Figures 3 and 4.
| Model | Varadj | Eig1 | Eig2 | Eig3 | Eig4 | F p axis1 | F p all axes |
|---|---|---|---|---|---|---|---|
| Ignoring phylogeny | |||||||
| Unconstrained (PCA) | 18.0 | 0.101 | 0.062 | 0.013 | 0.008 | 15.5*** | 31.3*** |
| Geography RDA | 22.4 | 0.156 | 0.061 | 0.010 | 0.002 | 25.3*** | 40.9*** |
| Climate RDA | 23.7 | 0.156 | 0.074 | 0.013 | — | 25.4*** | 44.1*** |
| Land covers RDA | 22.6 | 0.203 | 0.029 | — | — | 34.9*** | 41.4*** |
| Socioeconomics | 29.6 | 0.265 | 0.036 | — | — | 49.6*** | 59.1*** |
| Considering phylogeny | |||||||
| Unconstrained (PCA) | 11.1 | 0.056 | 0.012 | 0.005 | 0.003 | 12.0*** | 16.8*** |
| Geography RDA | 13.0 | 0.065 | 0.007 | 0.004 | 0.001 | 16.2*** | 19.8*** |
| Climate RDA | 10.5 | 0.047 | 0.011 | 0.004 | 0.002 | 11.3*** | 15.8*** |
| Land covers RDA | 11.2 | 0.048 | 0.009 | 0.002 | 0.001 | 12.8*** | 16.3*** |
| Socioeconomics RDA | 17.7 | 0.088 | 0.014 | 0.005 | 0.001 | 22.2*** | 28.3*** |
Note: Monte‐Carlo permutation tests significance values: **p < 0.01, ***p < 0.001.