Effects of changes in floral orientation on the percentage of upward movements to total vertical movements on inflorescences by leafcutter bees and bumble bees.

Sites with different capital letters in the same row indicate significant differences among inflorescence types (P<0.05).
aindicates numbers of observation periods (15 min).
bnumber in bracket indicates the total number of vertical movements.
cdata on bumble bees was not analyzed because the movements on Up and Down inflorescences were infrequent.