BUMBLEBEE FORAGING AND FLORAL SCENT DIMORPHISM - BOMBUS-KIRBYELLUS CURTIS (HYMENOPTERA, APIDAE) AND POLEMONIUM-VISCOSUM NUTT (POLEMONIACEAE)
BUMBLEBEE FORAGING AND FLORAL SCENT DIMORPHISM - BOMBUS-KIRBYELLUS CURTIS (HYMENOPTERA, APIDAE) AND POLEMONIUM-VISCOSUM NUTT (POLEMONIACEAE)
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DOI：
10.1139/z83-164
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发表时间：
1983-01-01
影响因子：
1.4
通讯作者：
KEVAN, PG
中科院分区：
文献类型：
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作者：
GALEN, C;KEVAN, PG
粘草的植物有芳香或臭香味的花。研究了花的气味与主要传粉者访花的关系。大黄蜂女王访问有甜味花朵的植物的频率明显高于那些有臭气味的植物，并且倾向于每个花序访问更多的花香而不是臭气味的花。这些观察结果与圈养蜜蜂在控制条件下在封闭的2种气味变体阵列上觅食的偏好测试结果一致。在实验试验中，蜜蜂对阵列的初次访问和阵列内植物之间的访问倾向于芳香的花序。蜜蜂在网格上移动的方式是，气味难闻的邻居很少被访问，而芬芳的花朵被访问的次数比预期的要多。在一组试验中，蔗糖溶液被添加到花中，以补偿自然直立作物的变化。这种处理并没有减少大黄蜂对甜味的偏好，也没有改变蜜蜂在网格上的运动模式。花香对访花模式的影响大于花蜜对访花模式的影响。
Plants of P. viscosum have either sweet- or skunky-scented flowers. The relationship between floral scent and visitation by the principal pollinator, B. kirbyellus is examined. Bumblebee queens visited plants with sweet-scented flowers significantly more often than those with skunky scent and tended to visit more flowers per inflorescence of sweet than of skunky scent. These observations agree with results from preference tests with captive bees foraging under controlled conditions on enclosed arrays of the 2 scent morphs. In experimental trials, bee orientation on the initial visit to the array and on visits between plants within the array favored sweet-scented inflorescences. Bees moved on the grid in such a way that skunky-scented nearest neighbors were undervisited, while sweet-scented flowers were visited more often than expected. In 1 set of trials, sucrose solution was added to flowers in order to compensate for natural standing crop variation. This treatment did not reduce bumblebee preference for the sweet scent morph nor alter the movement patterns of bees on the grid. Floral visitation pattern appears to be influenced more strongly by scent than by nectar level.