Table 1 Analysis of covariance table for number of individuals recorded in quadrats with number of individuals of lizards and frogs as the independent variable and quadrat type, forest type, elevation, number of trees, canopy cover and number of tree buttresses as predictor variables
DF | SS | MS | F | Pr(>F) | |
|---|---|---|---|---|---|
Lizards | |||||
Quadrat type | 1 | 3,151.70 | 3,151.70 | 45.89 | 1.51 × 10−10 |
Forest type | 2 | 52.90 | 26.46 | 0.39 | 0.68 |
Elevation | 1 | 26.60 | 26.60 | 0.39 | 0.51 |
Trees | 1 | 14.80 | 14.75 | 0.22 | 0.64 |
Canopy cover | 1 | 375.00 | 374.99 | 5.46 | 0.02 |
Buttress | 1 | 536.50 | 536.49 | 7.81 | 0.01 |
Residuals | 191 | 13,118.00 | 68.68 | ||
Frogs | |||||
Quadrat type | 1 | 869.60 | 869.60 | 35.46 | 1.28 × 10−08 |
Forest type | 2 | 34.90 | 17.46 | 0.71 | 0.49 |
Elevation | 1 | 34.40 | 34.36 | 1.40 | 0.24 |
Trees | 1 | 163.00 | 163.01 | 6.65 | 0.01 |
Canopy cover | 1 | 159.20 | 159.16 | 6.49 | 0.01 |
Buttress | 1 | 26.60 | 26.58 | 1.08 | 0.30 |
Residuals | 185 | 4,536.40 | 24.52 | ||