Table 2. Results of the stepwise linear regressions predicting wing size changes in T. annulata based on a variety of environmental measures.
| Coefficient | T | P | |
|---|---|---|---|
| (a) Dependent with Forewing size, Model: R2 = 0.470; F = 15.940; df = 2, 38, P < 0.001 | |||
| Intercept | 115.206 | 140.172 | 0.000 |
| PC1 environment | −3.705 | −4.450 | 0.000 |
| PC2 environment | 2.894 | 3.476 | 0.001 |
| PC3 environment | — | — | — |
| PC4 environment | — | — | — |
| (b) Dependent with Hindwing size, Model: R2 = 0.476; F = 16.333; df = 2, 38, P < 0.001 | |||
| Intercept | 88.963 | 159.029 | 0.000 |
| PC1 environment | −2.518 | −4.443 | 0.000 |
| PC2 environment | 2.038 | 3.595 | 0.001 |
| PC3 environment | — | — | — |
| PC4 environment | — | — | — |
(a) Dependent variable: forewing size, independent variables: PC1, PC2, PC3, PC4 for environmental measures; (b) dependent variable: hindwing size, independent variables: PC1, PC2, PC3, PC4 for environmental measures.