Pollination Requirements and the Foraging Behavior of Potential Pollinators of Cultivated Brazil Nut (Bertholletia excelsa Bonpl.) Trees in Central Amazon Rainforest

Table 3

Bee relative abundance, mean number (± standard error: SE) of flowers visited per tree by ten bee species and mean time (± standard error: SE), in seconds, spent by twelve bee species per visit to flowers of Brazil nut (Bertholletia excelsa) variety 609, under cultivation in the Amazon rainforest (𝑛: number of bees recorded per species).

Species	Relative abundance	Number of flower visits per tree			Time spent per flower visit
	(%)	n	X±S.E.		n	X±S.E.
Xylocopa frontalis	62.85	136	11.33±0.834	abc	64	11.63±0.754	bcd
Centris denudans	6.84	35	14.71±2.368	bc	64	11.96±0.736	bcd
Centris americana	1.11		—		4	7.73±0.694	cd
Centris ferruginea	0.55	3	3.67±2.667	c	31	9.14±0.854	cd
Eulaema meriana	6.65	17	15.10±2.358	a	57	16.05±1.204	bc
Eulaema mocsaryi	12.20	72	4.36±0.514	abc	48	15.34±1.488	bc
Eulaema mocsaryi (male)		9	8.33±2.677	abc	55	5.68±0.265	d
Epicharis conica	3.88	8	2.75±0.773	c	7	18.39±2.714	bcd
Epicharis flava	0.37	7	4.43±1.288	bc	45	11.86±1.354	bcd
Epicharis zonata	0.92	9	1.67±0.289	c	3	31.38±13.090	a
Eufrisea flaviventris	0.37	6	7.33±3.373	abc	58	5.96±0.983	d
Eufrisea purpurata	0.74		—		4	14.54±5.809	bcd
Bombus tranversalis	3.51	3	6.33±2.963	abc	42	27.61±1.928	a

*Values followed by the same letters are not significantly different (𝑃<0.005; ANOVA).