Table 1: Composition of pollen grains (n = 200) randomly chosen from each of 84 pollen loads and 253 pollen balls.

Level of pollen loadThe number of floweringPercentage of pollen grains of the most dominated plant species within
species/pollen loadrandom 200 pollen grains
NRangeMean ± S.D.100%100 >~ 80%80 >~ 50%50 >~> 0%

Pollen loaf841–73.24 ± 1.27649263
Pollen ball2531–52.02 ± 0.9194133251
Nest691–63.12 ± 1.4795091