期刊
APIDOLOGIE
卷 38, 期 1, 页码 12-18出版社
SPRINGER FRANCE
DOI: 10.1051/apido:2006048
关键词
flower discrimination; repellent scent marks; chemical cue; signal; bumble bees; Bombus
类别
Foraging bumblebees leave chemical substances when visiting flowers and the detection of these scent marks improves their foraging efficiency. Whereas laboratory studies found that scent-marks convey attraction to food sources, all field studies found foragers to be repelled by recently visited flowers. In this study we aim to resolve this conflict by implementing near-natural reward dynamics in a laboratory feeder array. When feeders were filled with small, non-replenished amounts of reward, worker bumblebees (Bombus terrestris) avoided revisiting the depleted feeders. As evidenced by a corolla replacement experiment, feeder discrimination was based on the perception of chemical cues deposited during previous visits. Pentane extracts of bumblebee tarsi acted as a repellent when applied to glass corollas, whereas pure pentane did not. We suggest that scent-marks are simple cues inherent to footprints and emphasize the importance of context to how these cues are interpreted by foraging bees.
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