Ancylecha fenestrata

Dr. Jan Scherberich

Ancylecha fenestrata
Image: Jan Scherberich
Dr. Jan Scherberich Dr. Jan Scherberich Image: Dr. Jan Scherberich

Contact

 

Dr. Jan Scherberich

 

Institute for Zoology and Evolutionary Research
Erbertstrasse 1
07743 Jena
Germany

Email: jan.scherberich@uni-jena.de

Research Interest

Insects have developed a wide variety of hearing organs. I am fascinated by the similarities to the human ear, especially the so-called crista acustica of the grasshoppers. From the mechanical movement of the ear, via the transduction into a neural signal, to the processing in a neuronal network, many questions can already be answered.

During my dissertation I have been working on the periphery of the auditory system of grasshoppers: Using thin sections, many anatomical peculiarities could be determined. Laser-Doppler vibrometry and electrophysiological recordings were used to describe processes for the temporal triggering of action potentials of different sensory units in the grasshopper ear. Thereby we discovered a special auditory organ in the Malaysian sickle cricket (Ancylecha fenestrata). It features an auditory fovea, an anatomically determined overrepresentation of a certain frequency.

Now the question arises what influence such an overrepresentation in the periphery has on higher centres in the auditory pathway. For this purpose, I am currently trying to reconstruct the processing in the prothoracic ganglion (where signals from both ears are filtered) using tracer solutions and multi-channel electrodes.

Coverpicture "proceedings of the royal society B" (vol. 284) Coverpicture "proceedings of the royal society B" (vol. 284) Image: Dr. Jan Scherberich

Publications

2021 - 2020 - 2019 - 2018 - 2017 - 2016 - 2015
Year

Title

2021

Vavakou A, Scherberich J, Nowotny M, van der Heijden (2021) Tuned vibration modes in a miniature hearing organ - insights from the bushcricket. Proc Natl Acad Sci U S A. 118(39):e2105234118. doi: 10.1073/pnas.2105234118.

2020

Scherberich JTaszus R , Stoessel A, Nowotny, M  (2020). Comparative micromechanics of bushcricket ears with and without a specialized auditory fovea region in the crista acustica. Proc Biol Sci. 2020 Jun 24;287(1929):20200909. doi:https://doi.org/10.1098/rspb.2020.0909

2019

Scherberich J, Nowotny M (2019) More input = more information? Acoustic signal processing in a small network. “13th Göttingen Meeting of the German Neuroscience Society” (Göttingen, Germany, 20.-23. March 2019).

Scherberich J, Nowotny M (2019): Comparative study of auditory signal processing in insect neuronal networks. 112th Annual Meeting of the German Zoological Society (Jena, Germany, 10.-13. September 2019)

2018

Scherberich J (2018): Analyse von mechanischen und neuronalen Antworten im Gehör der Laubheuschrecke. Disputation an der Goethe-Universität Frankfurt am Main. (Frankfurt am Main, Germany, 19. April 2018)

Scherberich J, Nowotny M (2018): Neuronal characteristics in the auditory system of katydids. Arthropod Neuroscience Network Spring Meeting 2018 (Altleinigen, Germany, 27.-29. March 2018)

2017

Scherberich J, Hummel J, Schöneich S, Nowotny M (2017) Sexual dimorphism in the auditory fovea of the duetting bushcricket Ancylecha fenestrata: anatomical basis and behavioral relevance. “12th Göttingen Meeting of the German Neuroscience Society” (Göttingen, Germany, 22.-25. March 2017).

Scherberich J, Hummel J, Schöneich S, Nowotny M (2017): Sexual dimorphism of the auditory fovea in the ears of the katydid Ancylecha fenestrata reflects an asymmetric acoustic mate finding strategy. Invertebrate Sound and Vibration (Rauischholzhausen, Germany, 14.-17. September 2017).

Scherberich J (2017): Analyse von mechanischen und neuronalen Antworten im Gehör der Laubheuschrecke. Dissertation an der Goethe-Universität Frankfurt am Main.

Scherberich J, Hummel J, Schöneich S, Nowotny M (2017): Functional basis of the sexual dimorphism in the auditory fovea of the duetting bushcricket Ancylecha fenestrata. Proc. R. Soc. B 284, p. 20171426.

 

2016

Scherberich J, Hummel J, Schöneich S, Nowotny M (2016): Auditory fovea in the ear of a duetting katydid shows male-specific adaptation to the female call. Curr. Biol. 26 (23), R1222-R1223.

Hummel J, Schöneich S, Kössl M, Scherberich J, Hedwig B G, Prinz S, Nowotny M (2016): Gating of Acoustic Transducer Channels Is Shaped by Biomechanical Filter Processes. J. Neurosci. 36 (8), p. 2377–2382.

Scherberich J, Kössl M, Nowotny M (2016): Time-domain measurements of pure-tone evoked mechanical and neuronal response in an insect ear. “39th Association of Research in Otolaryngology MidWinter Meeting” (San Diego, USA, 19.-24. February 2016)

Nowotny M, Scherberich J, Hummel J (2016): Differential auditory adaptation in katydids (bushcrickets) ears: low-frequency resonance vs. acoustic fovea. “International Society for Neuroethology“ (Montevideo, Uruguay, 30. March – 03. April 2016).

 

2015

Lakes‐Harlan R, Scherberich J (2015): Position-Dependent Hearing in Three Species of Bushcrickets (Tettigoniidae, Orthoptera). R. Soc. Open. Sci. 2 (6), p. 140473.

Scherberich J, Hummel J, Nowotny M (2015) Evidences of an acoustic fovea in the hearing of the bushcricket Ancylecha fenestrata. “German Zoological Society. 108th Annual Meeting, 125th Anniversary” (Gratz, Austria, 09.-12. September 2015).

Scherberich J, Hummel J, Nowotny M (2015) Gender differences in the hearing organ of the bushcricket Ancylecha fenestrata. “Eleventh Göttingen Meeting of the German Neuroscience Society” (Göttingen, Germany, 18.-21. March 2015).