A functional role of the sky's polarization pattern for orientation in the greater mouse-eared bat.

A functional role of the sky's polarization pattern for orientation in the greater mouse-eared bat.
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天空的极化模式在更大的小鼠捕获蝙蝠中的方向的功能作用。

DOI:
10.1038/ncomms5488
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发表时间:
2014-07-22
影响因子:
16.6
通讯作者:
Holland, Richard A.
Holland, Richard A.
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Greif, Stefan;Borissov, Ivailo;Yovel, Yossi;Holland, Richard A.

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动物可以依靠大量的感官信息来定位和导航。其中一个线索是天空中偏振光的模式,例如,它可以被鸟类用作地理参考,以校准罗盘机制中的其他线索。在这里,我们证明了雌性大鼠耳蝠(Myotis Myotis)在日落时使用极化线索来校准磁罗盘,随后在归航实验中用于定位。这使得蝙蝠成为迄今为止已知的唯一利用天空偏振模式的哺乳动物。虽然目前还不清楚这个线索是如何在这个分类单元中被感知的,但我们的观察对哺乳动物视觉的感觉生物学具有普遍的意义。许多动物,包括昆虫、鸟类、鱼类和爬行动物,都利用偏振光来导航,但这在哺乳动物中还没有报道过。在这项研究中,Greif等人证明了一种哺乳动物,雌性大鼠耳蝠Myotis Myotis,也可以利用偏振光进行导航。
Animals can call on a multitude of sensory information to orient and navigate. One such cue is the pattern of polarized light in the sky, which for example can be used by birds as a geographical reference to calibrate other cues in the compass mechanism. Here we demonstrate that the female greater mouse-eared bat (Myotis myotis) uses polarization cues at sunset to calibrate a magnetic compass, which is subsequently used for orientation during a homing experiment. This renders bats the only mammal known so far to make use of the polarization pattern in the sky. Although there is currently no clear understanding of how this cue is perceived in this taxon, our observation has general implications for the sensory biology of mammalian vision. Many animals, including insects, birds, fish and reptiles, use polarized light for navigation, but this has not been reported before in mammals. In this study, Greif et al. demonstrate that a mammal, the female greater mouse-eared bat, Myotis myotis, can also use polarized light for navigation.
DOI: 10.1038/424033a
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期刊: NATURE
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