Figure 3.

Sucrose responses of 1-week-old bees predict their foraging behavior later in life. The x-axis shows the foraging material of the bees tested for their sucrose responses at the age of 1 week, brought back by them when they reached foraging age. The y-axis shows the lowest sucrose concentrations (log₁₀) at which 1-week-old bees responded with proboscis extension. Bees with the highest sucrose responsiveness (i.e., the lowest threshold) at young age will later forage for water or pollen. Individuals with low-sucrose responsiveness (i.e., a high threshold) perhaps collect nectar, nectar and pollen, or return empty. From Fig. 1 Pankiw and Page (2000) with the kind permission of Springer Science and Business Media.