Table 3.
Multivariate analyses using general linear models. Model 1: dependent variable: log M A; factors: N:P supply ratio, species, interactions between N:P supply ratio and species, and log M B; Model 2: dependent variable: log M A; factors: N:P supply ratio, functional group, interactions between N:P supply ratio and functional species group, and log M B
| Source | df | F Ratio | Prob > F | |
|---|---|---|---|---|
| Model 1 adj. R 2 = 0.9090 | Species | 4 | 26.33 | <.0001 |
| N:P supply ratio | 4 | 5.28 | .0007 | |
| Species*N:P supply ratio | 16 | 3.34 | .0001 | |
| Log M B | 1 | 129.07 | <.0001 | |
| Model 2 adj. R 2 = 0.8752 | Functional group | 1 | 51.35 | <.0001 |
| N:P supply ratio | 4 | 7.34 | <.0001 | |
| Functional group*N:P supply ratio | 4 | 3.71 | .0069 | |
| Log M B | 1 | 97.62 | <.0001 |