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Take time to smell the frogs: vocal sac glands of reed frogs (Anura: Hyperoliidae) contain species-specific chemical cocktails

Starnberger, Iris ; Poth, Dennis ; Peram, Pardha Saradhi ; Schulz, Stefan ; Vences, Miguel ; Knudsen, Jette LU ; Barej, Michael F. ; Roedel, Mark-Oliver ; Walzl, Manfred and Hoedl, Walter (2013) In Biological Journal of the Linnean Society 110(4). p.828-838
Abstract
Males of all reed frog species (Anura: Hyperoliidae) have a prominent, often colourful, gular patch on their vocal sac, which is particularly conspicuous once the vocal sac is inflated. Although the presence, shape, and form of the gular patch are well-known diagnostic characters for these frogs, its function remains unknown. By integrating biochemical and histological methods, we found strong evidence that the gular patch is a gland producing volatile compounds, which might be emitted while calling. Volatile compounds were confirmed by gas chromatography-mass spectrometry in the gular glands in 11 species of the hyperoliid genera Afrixalus, Heterixalus, Hyperolius, and Phlyctimantis. Comparing the gular gland contents of 17 specimens of... (More)
Males of all reed frog species (Anura: Hyperoliidae) have a prominent, often colourful, gular patch on their vocal sac, which is particularly conspicuous once the vocal sac is inflated. Although the presence, shape, and form of the gular patch are well-known diagnostic characters for these frogs, its function remains unknown. By integrating biochemical and histological methods, we found strong evidence that the gular patch is a gland producing volatile compounds, which might be emitted while calling. Volatile compounds were confirmed by gas chromatography-mass spectrometry in the gular glands in 11 species of the hyperoliid genera Afrixalus, Heterixalus, Hyperolius, and Phlyctimantis. Comparing the gular gland contents of 17 specimens of four sympatric Hyperolius species yielded a large variety of 65 compounds in species-specific combinations. We suggest that reed frogs might use a complex combination of at least acoustic and chemical signals in species recognition and mate choice.(c) 2013 The Authors. Biological Journal of the Linnean Society published by John Wiley & Sons Ltd on behalf of The Linnean Society of London. (Less)
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author
; ; ; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Afrixalus, Amphibia, chemical communication, Heterixalus, histology, Hyperolius, gular gland anatomy, pheromones, Phlyctimantis
in
Biological Journal of the Linnean Society
volume
110
issue
4
pages
828 - 838
publisher
Oxford University Press
external identifiers
  • wos:000330183200009
  • scopus:84888040382
  • pmid:24277973
ISSN
0024-4066
DOI
10.1111/bij.12167
language
English
LU publication?
yes
id
64c4c714-b411-464d-a8b3-72bf07412d56 (old id 4318700)
date added to LUP
2016-04-01 10:34:54
date last changed
2022-04-27 23:26:31
@article{64c4c714-b411-464d-a8b3-72bf07412d56,
  abstract     = {{Males of all reed frog species (Anura: Hyperoliidae) have a prominent, often colourful, gular patch on their vocal sac, which is particularly conspicuous once the vocal sac is inflated. Although the presence, shape, and form of the gular patch are well-known diagnostic characters for these frogs, its function remains unknown. By integrating biochemical and histological methods, we found strong evidence that the gular patch is a gland producing volatile compounds, which might be emitted while calling. Volatile compounds were confirmed by gas chromatography-mass spectrometry in the gular glands in 11 species of the hyperoliid genera Afrixalus, Heterixalus, Hyperolius, and Phlyctimantis. Comparing the gular gland contents of 17 specimens of four sympatric Hyperolius species yielded a large variety of 65 compounds in species-specific combinations. We suggest that reed frogs might use a complex combination of at least acoustic and chemical signals in species recognition and mate choice.(c) 2013 The Authors. Biological Journal of the Linnean Society published by John Wiley & Sons Ltd on behalf of The Linnean Society of London.}},
  author       = {{Starnberger, Iris and Poth, Dennis and Peram, Pardha Saradhi and Schulz, Stefan and Vences, Miguel and Knudsen, Jette and Barej, Michael F. and Roedel, Mark-Oliver and Walzl, Manfred and Hoedl, Walter}},
  issn         = {{0024-4066}},
  keywords     = {{Afrixalus; Amphibia; chemical communication; Heterixalus; histology; Hyperolius; gular gland anatomy; pheromones; Phlyctimantis}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{828--838}},
  publisher    = {{Oxford University Press}},
  series       = {{Biological Journal of the Linnean Society}},
  title        = {{Take time to smell the frogs: vocal sac glands of reed frogs (Anura: Hyperoliidae) contain species-specific chemical cocktails}},
  url          = {{http://dx.doi.org/10.1111/bij.12167}},
  doi          = {{10.1111/bij.12167}},
  volume       = {{110}},
  year         = {{2013}},
}