Flower Constancy in the Generalist Pollinator Ceratina flavipes (Hymenoptera: Apidae): An Evaluation by Pollen Analysis

Table 1

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

Level of pollen load		The number of flowering		Percentage of pollen grains of the most dominated plant species within
		species/pollen load		random 200 pollen grains
	N	Range	Mean $\pm$ S.D.	100%	100 $>~\ge$ 80%	80 $>~\ge$ 50%	50 $>~>$ 0%
Pollen loaf	84	1–7	3.24 $\pm$ 1.27	6	49	26	3
Pollen ball	253	1–5	2.02 $\pm$ 0.91	94	133	25	1
Nest	69	1–6	3.12 ± 1.47	9	50	9	1