Table 2.

The relationship between crop load and air temperature. Results of linear regressions describing the relationship between crop load of bees after the third feeder visit (y) and air temperature (x), for the four nectar temperatures. The intercepts are proportional to nectar temperature, with the highest intercept for nectar at 35°C. The regression slopes differed significantly, increasing from 20°C to 35°C.

nectar temperature (°C)	R2	equation	intercept at 14°C	p-value
20	0.009	y = 39.81 − 0.557x	32.0	<0.05
25	0.026	y = 44.95 − 0.654x	35.8	<0.001
30	0.045	y = 52.78 − 0.870x	40.6	<0.001
35	0.078	y = 63.77 − 1.217x	46.7	<0.001