Honeybees prefer novel insect-pollinated flower shapes over bird-pollinated flower shapes

• 来源期刊: 动物学报（英文版）
• 年，卷（期）: 2019,（4）
• 页码范围: 457-465
• 页数: 9页
• 语种: 英文
• DOI: 10.1093/cz/zoy095

摘要

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.Wetested 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 bolistic 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.