昆虫迷

 找回密码
 立即注册

QQ登录

只需一步,快速开始

查看: 209|回复: 0

Science:花与熊蜂之间的火花飞舞

[复制链接]

82

主题

113

帖子

600

积分

木虫

Rank: 2

积分
600
发表于 2016-2-14 16:11:33 | 显示全部楼层

花

花可产生包括颜色、形状、图案及化学物质等范围广泛的信号来吸引熊蜂及其它的授粉动物。

如今,由Dominic Clarke及其同事所做的一项研究提示,花的不可见的电场可作为额外的花信号,从而帮助熊蜂分辨花朵并记住这些花的位置。研究人员在一个室内活动场所对这些蜂进行了研究;在那里,这些昆虫可在全叶缘矮牵牛花或紫花矮牵牛花之间自由地飞行。

Clarke及其同事研究了这些蜂的正常的正电位是如何影响这些花的通常的负电位的,并发现这些蜂可以探测到花电场的诸如水平、模式及结构等微小细节。据这些研究人员披露,这些花电场似乎可改善这些熊峰的记忆并帮助它们记住富含花蜜的花朵位置。

他们指出,由于这些花电场会随着熊蜂的每一次的到访而改变,这种电场在植物和授粉动物间构成了一种在此之前还未被识别到的快速、动态的沟通形式。

了解更多:


Detection and Learning of Floral Electric Fields by Bumblebees,Science, February 21 2013 | DOI: 10.1126/science.1230883

Insects use several senses to forage, detecting floral cues such as color, shape, pattern, and volatiles. We report a formerly unappreciated sensory modality in bumblebees (Bombus terrestris), detection of floral electric fields. These fields act as floral cues, which are affected by the visit of naturally charged bees. Like visual cues, floral electric fields exhibit variations in pattern and structure, which can be discriminated by bumblebees. We also show that such electric field information contributes to the complex array of floral cues that together improve a pollinator's memory of floral rewards. Because floral electric fields can change within seconds, this sensory modality may facilitate rapid and dynamic communication between flowers and their pollinators.
回复

使用道具 举报

您需要登录后才可以回帖 登录 | 立即注册

本版积分规则

QQ|小黑屋|手机版|昆虫迷  

滇ICP备13003927号-1 滇公网安备 53010302000180号

Powered by Discuz X3.2

快速回复 返回顶部 返回列表