期刊
CURRENT ZOOLOGY
卷 65, 期 4, 页码 457-465出版社
OXFORD UNIV PRESS
DOI: 10.1093/cz/zoy095
关键词
angiosperm; Apis mellifera (European honeybee); bird-pollinated; flower; insect-pollinated; pollinator
类别
资金
- Australian Government Research Training Program Scholarship
- Fyssen Foundation
- University Toulouse 3
Plant-pollinator interactions have a fundamental influence on flower evolution. Flower color signals are frequently tuned to the visual capabilities of important pollinators such as either bees or birds, but far less is known about whether flower shape influences the choices of pollinators. We tested European honeybee Apis mellifera preferences using novel achromatic (gray-scale) images of 12 insect-pollinated and 12 bird-pollinated native Australian flowers in Germany; thus, avoiding influences of color, odor, or prior experience. Independent bees were tested with a number of parameterized images specifically designed to assess preferences for size, shape, brightness, or the number of flower-like shapes present in an image. We show that honeybees have a preference for visiting images of insect-pollinated flowers and such a preference is most-likely mediated by holistic information rather than by individual image parameters. Our results indicate angiosperms have evolved flower shapes which influence the choice behavior of important pollinators, and thus suggest spatial achromatic flower properties are an important part of visual signaling for plantpollinator interactions.
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