Noseleaf dynamics during pulse emission in horseshoe bats.

PloS One
Lin FengRolf Müller

Abstract

Horseshoe bats emit their biosonar pulses nasally and diffract the outgoing ultrasonic waves by conspicuous structures that surrounded the nostrils. Here, we report quantitative experimental data on the motion of a prominent component of these structures, the anterior leaf, using synchronized laser Doppler vibrometry and acoustic recordings in the greater horseshoe bat (Rhinolophus ferrumequinum). The vibrometry data has demonstrated non-random motion patterns in the anterior leaf. In these patterns, the outer rim of the walls of the anterior leaf twitches forward and inwards to decrease the aperture of the noseleaf and increase the curvature of its surfaces. Noseleaf displacements were correlated with the emitted ultrasonic pulses. After their onset, the inward displacements increased monotonically towards their maximum value which was always reached within the duration of the biosonar pulse, typically towards its end. In other words, the anterior leaf's surfaces were moving inwards during most of the pulse. Non-random motions were not present in all recorded pulse trains, but could apparently be switched on or off. Such switches happened between sequences of consecutive pulses but were never observed between individual pulses...Continue Reading

References

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May 17, 2006·Trends in Ecology & Evolution·Gareth Jones, Emma C Teeling
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Aug 8, 2009·Physical Review Letters·Zhiwei ZhangRolf Müller
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Nov 30, 2010·The Journal of the Acoustical Society of America·Roman Kuc
Jan 15, 2011·Physical Review Letters·Jonas ReijniersHerbert Peremans

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Citations

Feb 1, 2013·The Journal of the Acoustical Society of America·Sajjad Zeinoddini MeymandRolf Müller
Jun 17, 2015·Proceedings of the National Academy of Sciences of the United States of America·Lasse JakobsenAnnemarie Surlykke
Dec 3, 2015·The Journal of the Acoustical Society of America·Anupam K GuptaRolf Müller
Jul 8, 2016·Scientific Reports·Meike Linnenschmidt, Lutz Wiegrebe
Aug 5, 2017·The Journal of Experimental Biology·Kathrin Kugler, Lutz Wiegrebe
Jun 18, 2019·Bioinspiration & Biomimetics·Luhui Yang, Rolf Müller
May 11, 2013·Bioinspiration & Biomimetics·Mittu PannalaRolf Müller
Apr 30, 2017·Physical Review Letters·Rolf MüllerJohn R Buck
Apr 30, 2016·Bioinspiration & Biomimetics·Yanqing FuRolf Müller
Jul 18, 2018·Physical Review. E·Anupam K GuptaRolf Müller
Jun 11, 2017·The Journal of the Acoustical Society of America·Xiaoyan YinRolf Müller
Sep 3, 2020·The Journal of the Acoustical Society of America·Liujun ZhangRolf Müller
Sep 30, 2020·Bioinspiration & Biomimetics·Joseph SutliveRolf Mueller
Apr 1, 2014·Physical Review Letters·Li Gao, Rolf Müller
Apr 10, 2021·Frontiers in Cell and Developmental Biology·Kai ItoDaisuke Koyabu

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