Table 6. ANOVAs to determine if predator cues and Roundup (including their interaction) influenced size (a; centroid), or shape (b and c) of tadpoles (MIgeo, for geometric morphometric measurements, or MIlin, for linear measurements, respectively) with mesocosm nested within the interaction of predator cues and Roundup (i.e. mesocosm nested within treatment).
a) Centroid (size) | SS | d.f. | MS | F | p |
Predator | 19.9 | 1 | 19.91 | 0.97 | 0.326 |
Roundup | 4.3 | 1 | 4.32 | 0.21 | 0.647 |
Predator*Roundup | 521.7 | 1 | 521.7 | 25.38 | <0.001 |
Mesocosm (Predator*Roundup) | 423.0 | 12 | 35.25 | 1.72 | 0.06 |
Error | 11386.2 | 554 | 20.55 |
We used Sigma-restricted parameterization and Type III (Effective hypothesis) sum of squares.