Combinations of rewards in the individual foraging on resources varying in both quality and quantity experiment.

Quantity and quality of sugar solution and pollen rewards offered simultaneously in four series of tests, each of them comprising five tests with a varied reward – different quantities or qualities – of one resource and a standard reward of the other resource.四项系列试验中同时提供的糖溶液与花粉奖励的数量与质量；每个系列包含五项试验，各试验针对其中一类奖励资源设置差异化的数量或质量，另一类奖励资源则保持标准奖励水平。