Table 1.
Summary data for analyses of covariance corresponding to Fig. 2
| Dependent variable | Source | Type III sum of squares | d.f. | Mean square | F | P-value |
|---|---|---|---|---|---|---|
| Slope | Shade-tolerance | 0·003 | 1 | 0·003 | 1·94 | 0·17 |
| Wood density | 0·003 | 1 | 0·003 | 1·62 | 0·21 | |
| Shade-tolerance × wood density | 0·005 | 1 | 0·005 | 3·00 | 0·09 | |
| Error | 0·114 | 71 | 0·002 | |||
| Slope | Shade-tolerance | 0·003 | 1 | 0·003 | 1·77 | 0·19 |
| Maximum height | 0·008 | 1 | 0·008 | 4·92 | 0·03 | |
| Shade-tolerance × maximum height | 0·005 | 1 | 0·005 | 3·01 | 0·09 | |
| Error | 0·112 | 71 | 0·002 | |||
| Main-stem volume at 5 m | Shade-tolerance | 0·000 | 1 | 0·000 | 0·03 | 0·87 |
| Wood density | 0·005 | 1 | 0·005 | 0·56 | 0·46 | |
| Shade-tolerance × wood density | 0·000 | 1 | 0·000 | 0·03 | 0·85 | |
| Error | 0·666 | 71 | 0·009 | |||
| Main-stem volume at 5 m | Shade-tolerance | 0·000024 | 1 | 0·000024 | 0·003 | 0·96 |
| Maximum height | 0·001 | 1 | 0·001 | 0·07 | 0·79 | |
| Shade-tolerance × maximum height | 0·000067 | 1 | 0·000067 | 0·007 | 0·93 | |
| Error | 0·679 | 71 | 0·010 |
The predicted variable is either slope of the logD–logH relationship (log scaled) or estimated main-stem volume at 5 m height (log scaled). Predictor variables are shade-tolerance (categorical) and either wood density or maximum canopy height (log scaled).