Limiting effect of mixed (1, 2) and sorted (1A-C, 2A-D) pollen pellets on various honeybee castes and sexes.

Symbols (1, 2, 3, -) denote the possibility of a limitation on bee growth and development due to the scarcity of a certain element in pollen. TSR values ≥4 denote limitations on growth and development. Calculated TSR values were grouped into 4 categories: (1) limiting–more than 75% of calculated TSR values ≥4; (2) likely limiting– 50–75% of calculated TSR values ≥4; (3) possibly limiting– 25–49% of calculated TSR values ≥4; (-) non-limiting–more than 75% of calculated TSR values