Audiograms of three subterranean rodent species (genus Fukomys) determined by auditory brainstem responses reveal extremely poor high-frequency cut-offs

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F17%3A76047" target="_blank" >RIV/60460709:41320/17:76047 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1242/jeb.164426" target="_blank" >http://dx.doi.org/10.1242/jeb.164426</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1242/jeb.164426" target="_blank" >10.1242/jeb.164426</a>

Result language

angličtina

Original language name

Audiograms of three subterranean rodent species (genus Fukomys) determined by auditory brainstem responses reveal extremely poor high-frequency cut-offs

Original language description

Life underground has shaped the auditory sense of subterranean mammals, shifting their hearing range to low frequencies. Mole-rats of the genus Fukomys have, however, been suggested to hear at frequencies up to 18,5 kHz, unusually high for a subterranean rodent. We present audiograms of three mole-rat species, Fukomys anselli, Fukomys micklemi and the giant mole-rat Fukomys mechowii, based on evoked auditory brainstem potentials. All species showed low sensitivity and restricted hearing ranges at 60 dB SPL extending from 125 Hz to 4 kHz (5 octaves) with most-sensitive hearing between 0,8 kHz and 1,4 kHz. The high-frequency cut-offs are the lowest found in mammals to date. In contrast to predictions from middle ear morphology, F. mechowii did not show higher sensitivity than F. anselli in the low-frequency range. These data suggest that the hearing range of Fukomys mole-rats is highly restricted to low frequencies and similar to that of other subterranean mammals.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10613 - Zoology

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

JOURNAL OF EXPERIMENTAL BIOLOGY

ISSN

0022-0949

e-ISSN

—

Volume of the periodical

220

Issue of the periodical within the volume

23

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

6

Pages from-to

4377-4382

UT code for WoS article

000416423900017

EID of the result in the Scopus database

2-s2.0-85035335076