Table 1: Analysis of variance with pollinator species and plant density on (a) the number of flowers visited per raceme; (b) the number of flowers tripped per raceme; (c) the proportion of open flowers that were visited per raceme; (d) the proportion of visited flowers that were tripped per raceme.

(a) Number of flowers visited per raceme

Source d.f.Sum-of-squares MSF-ratioP
Bee species 6 229.20 38.20 9.77<.0001
Plant density 1 9.89 9.89 2.53 .11
Bee* Density 6 17.10 2.85 0.73 .63

(b) Number of flowers tripped per raceme

Source d.f.Sum-of-squares MSF-ratioP
Bee species 6 170.47 28.41 13.01<.0001
Plant density 1 4.99 4.99 2.29 .13
Bee* Density 6 17.40 2.9 1.33 .24

(c) Proportion of open flowers that were visited

Source d.f.Sum-of-squares MSF-ratioP
Bee species 6 3.10 0.52 3.86 .0009
Plant density 1 0.0007 0.0007 0.01 .94
Bee* Density 6 0.84 0.14 1.05 .39

(d) Proportion of visited flowers that were tripped

Source d.f.Sum-of-squares MSF-ratioP
Bee species 6 49.94 8.32 24.27<.0001
Plant density 1 0.14 0.14 0.42 .52
Bee* Density 6 3.28 0.55 1.59 .15