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首页> 外文期刊>Israel Journal of Plant Sciences >Learning of colored targets with vertical and horizontal components by bumblebees (Bombus terrestris L.)
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Learning of colored targets with vertical and horizontal components by bumblebees (Bombus terrestris L.)

机译：大黄蜂（Bombus terrestris L.）学习具有垂直和水平分量的有色目标

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Colorful tufts of bracts, which attract insect pollinators, terminate the vertical inflorescences of several plant species. These flag-like bracts contrast in color with the leaves below them, and are oriented perpendicular to the flowers on the inflorescence. We studied how color contrast and perpendicular orientation affect the feeding choices of bumblebees in laboratory experiments. We trained bees to feeders with perpendicular two-color displays, and subsequently recorded their choices among feeders that displayed only one of these cues. The bees preferred perpendicular displays that resembled the training model in the color of the horizontal component. We then evaluated the effects of the horizontal vs. vertical display component on foraging choices. After training bees to two-color, perpendicular displays, we allowed them to choose between displays with either the same horizontal or the same vertical component as the training model. Foragers mostly oriented to the horizontal displays to which they had been trained. We conclude that (a) bumblebees learn perpendicular, two-color displays; (b) horizontal display components influence foraging choices more than vertical components; (c) vertical visual cues might guide the approach to a feeder, serving as landmarks. We discuss possible implications of our findings for the role of extra-floral bracts in pollination.
机译：五颜六色的insect片簇吸引昆虫的传粉者，终止了几种植物的垂直花序。这些旗状片的颜色与其下方的叶子形成对比，并在花序上垂直于花定向。在实验室实验中，我们研究了颜色对比度和垂直方向如何影响大黄蜂的喂养选择。我们将蜜蜂训练成具有垂直双色显示的饲养者，然后记录蜜蜂在仅显示这些暗示之一的饲养者中的选择。蜜蜂更喜欢在水平分量颜色上类似于训练模型的垂直显示。然后，我们评估了水平显示组件和垂直显示组件对觅食选择的影响。在将蜜蜂训练为两色，垂直显示之后，我们允许他们在与训练模型具有相同水平或相同垂直分量的显示之间进行选择。觅食者大多将目光对准了受过训练的水平显示器。我们得出以下结论：（a）大黄蜂学习垂直的双色显示; （b）水平展示组件比垂直展示组件对觅食选择的影响更大; （c）垂直的视觉提示可能会引导进纸器进入，成为路标。我们讨论了我们的发现对花外片在授粉中的作用的可能含义。

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