How the bat got its buzz

John M Ratcliffe, Coen P H Elemans, Lasse Jakobsen, Annemarie Surlykke

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

Since the discovery of echolocation in bats, the final phase of an attack on a flying insect, the 'terminal buzz', has proved enigmatic. During the buzz, bats increase information update rates by producing vocalizations up to 220 times s(-1). The buzz's ubiquity in hawking and trawling bats implies its importance for hunting success. Superfast muscles, previously unknown in mammals, are responsible for the extreme vocalization rate. Some bats produce a second phase-buzz II-defined by a large drop in the fundamental frequency (F(0)) of their calls. By doing so, bats broaden their acoustic field of view and should thereby reduce the likelihood of insect escape. We make the case that the buzz was a critical adaptation for capturing night-flying insects, and suggest that the drop in F(0) during buzz II requires novel, unidentified laryngeal mechanisms in order to counteract increasing muscle tension. Furthermore, we propose that buzz II represents a countermeasure against the evasive flight of eared prey in the evolutionary arms-race that saw the independent evolution of bat-detecting ears in various groups of night-flying insects.
OriginalsprogEngelsk
TidsskriftBiology Letters
Vol/bind9
Udgave nummer2
Sider (fra-til)20121031
ISSN1744-9561
DOI
StatusUdgivet - 2013

Fingeraftryk

Chiroptera
flight
insects
vocalization
Echolocation
muscles
Muscle Tonus
Acoustics
acoustics
Mammals
ears
mammals
Muscles

Citer dette

Ratcliffe, John M ; Elemans, Coen P H ; Jakobsen, Lasse ; Surlykke, Annemarie. / How the bat got its buzz. I: Biology Letters. 2013 ; Bind 9, Nr. 2. s. 20121031.
@article{2e2ee7ddf9c842668bb047819dab0341,
title = "How the bat got its buzz",
abstract = "Since the discovery of echolocation in bats, the final phase of an attack on a flying insect, the 'terminal buzz', has proved enigmatic. During the buzz, bats increase information update rates by producing vocalizations up to 220 times s(-1). The buzz's ubiquity in hawking and trawling bats implies its importance for hunting success. Superfast muscles, previously unknown in mammals, are responsible for the extreme vocalization rate. Some bats produce a second phase-buzz II-defined by a large drop in the fundamental frequency (F(0)) of their calls. By doing so, bats broaden their acoustic field of view and should thereby reduce the likelihood of insect escape. We make the case that the buzz was a critical adaptation for capturing night-flying insects, and suggest that the drop in F(0) during buzz II requires novel, unidentified laryngeal mechanisms in order to counteract increasing muscle tension. Furthermore, we propose that buzz II represents a countermeasure against the evasive flight of eared prey in the evolutionary arms-race that saw the independent evolution of bat-detecting ears in various groups of night-flying insects.",
author = "Ratcliffe, {John M} and Elemans, {Coen P H} and Lasse Jakobsen and Annemarie Surlykke",
year = "2013",
doi = "10.1098/rsbl.2012.1031",
language = "English",
volume = "9",
pages = "20121031",
journal = "Biology Letters",
issn = "1744-9561",
publisher = "The/Royal Society",
number = "2",

}

How the bat got its buzz. / Ratcliffe, John M; Elemans, Coen P H; Jakobsen, Lasse; Surlykke, Annemarie.

I: Biology Letters, Bind 9, Nr. 2, 2013, s. 20121031.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - How the bat got its buzz

AU - Ratcliffe, John M

AU - Elemans, Coen P H

AU - Jakobsen, Lasse

AU - Surlykke, Annemarie

PY - 2013

Y1 - 2013

N2 - Since the discovery of echolocation in bats, the final phase of an attack on a flying insect, the 'terminal buzz', has proved enigmatic. During the buzz, bats increase information update rates by producing vocalizations up to 220 times s(-1). The buzz's ubiquity in hawking and trawling bats implies its importance for hunting success. Superfast muscles, previously unknown in mammals, are responsible for the extreme vocalization rate. Some bats produce a second phase-buzz II-defined by a large drop in the fundamental frequency (F(0)) of their calls. By doing so, bats broaden their acoustic field of view and should thereby reduce the likelihood of insect escape. We make the case that the buzz was a critical adaptation for capturing night-flying insects, and suggest that the drop in F(0) during buzz II requires novel, unidentified laryngeal mechanisms in order to counteract increasing muscle tension. Furthermore, we propose that buzz II represents a countermeasure against the evasive flight of eared prey in the evolutionary arms-race that saw the independent evolution of bat-detecting ears in various groups of night-flying insects.

AB - Since the discovery of echolocation in bats, the final phase of an attack on a flying insect, the 'terminal buzz', has proved enigmatic. During the buzz, bats increase information update rates by producing vocalizations up to 220 times s(-1). The buzz's ubiquity in hawking and trawling bats implies its importance for hunting success. Superfast muscles, previously unknown in mammals, are responsible for the extreme vocalization rate. Some bats produce a second phase-buzz II-defined by a large drop in the fundamental frequency (F(0)) of their calls. By doing so, bats broaden their acoustic field of view and should thereby reduce the likelihood of insect escape. We make the case that the buzz was a critical adaptation for capturing night-flying insects, and suggest that the drop in F(0) during buzz II requires novel, unidentified laryngeal mechanisms in order to counteract increasing muscle tension. Furthermore, we propose that buzz II represents a countermeasure against the evasive flight of eared prey in the evolutionary arms-race that saw the independent evolution of bat-detecting ears in various groups of night-flying insects.

U2 - 10.1098/rsbl.2012.1031

DO - 10.1098/rsbl.2012.1031

M3 - Journal article

VL - 9

SP - 20121031

JO - Biology Letters

JF - Biology Letters

SN - 1744-9561

IS - 2

ER -