Iridescence impairs object recognition in bumblebees.

Iridescence impairs object recognition in bumblebees.
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DOI:
10.1038/s41598-018-26571-6
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发表时间:
2018-05-25
期刊:
影响因子:
4.6
通讯作者:
Whitney HM
Whitney HM
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Kjernsmo K;Hall JR;Doyle C;Khuzayim N;Cuthill IC;Scott-Samuel NE;Whitney HM

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虹彩是一种在分类学上广泛存在且引人注目的动物着色形式,然而,尽管对其机制的理解取得了进展,但对其功能和适应价值的了解却很少。我们测试了一个关于彩虹色功能的反直觉假设:它可以通过干扰物体识别来作为伪装。使用一个既定的昆虫视觉模型(熊蜂terrestris),我们证明,衍射光栅和多层彩虹色损害形状识别(虽然不是更微妙的形式,在一些花中看到的衍射光栅),支持的想法,这两种策略可以有效的伪装手段。我们的结论是,虹彩产生的视觉信号,可以混淆潜在的捕食者,这可能解释了高频率的虹彩在许多动物类群。
Iridescence is a taxonomically widespread and striking form of animal coloration, yet despite advances in understanding its mechanism, its function and adaptive value are poorly understood. We test a counterintuitive hypothesis about the function of iridescence: that it can act as camouflage through interference with object recognition. Using an established insect visual model (Bombus terrestris), we demonstrate that both diffraction grating and multilayer iridescence impair shape recognition (although not the more subtle form of diffraction grating seen in some flowers), supporting the idea that both strategies can be effective means of camouflage. We conclude that iridescence produces visual signals that can confuse potential predators, and this might explain the high frequency of iridescence in many animal taxa.
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发表时间: 2012-09-25
影响因子: 11.1
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