Appendix E. Analysis of covariance of log10-transformed angiosperm species richness with region as main effect and log10 (area), elevation, and the principal components (PC) of climate variables as covariates (Model: n = 471, R2 = 0.897).
Source |
Sum of squares |
df |
F ratio |
P |
Region |
0.633 |
1 |
47.8 |
<10 -9 |
Log10 area |
18.653 |
1 |
1409.6 |
<10 -9 |
Elevation |
2.718 |
1 |
205.4 |
<10 -9 |
PC1 |
2.300 |
1 |
173.8 |
<10 -9 |
PC2 |
1.452 |
1 |
109.7 |
<10 -9 |
PC3 |
0.108 |
1 |
8.2 |
<0.004 |
Error |
6.140 |
464 |