Underwater sound production varies within not between species in sympatric newts

0503860 - ÚBO 2020 RIV US eng J - Journal Article
Hubáček, J. - Šugerková, Monika - Gvoždík, Lumír
Underwater sound production varies within not between species in sympatric newts.
PeerJ. Roč. 2019, č. 3 (2019), č. článku e6649. ISSN 2167-8359. E-ISSN 2167-8359
R&D Projects: GA ČR(CZ) GA17-15480S
Institutional support: RVO:68081766
Keywords : Acoustic divergence * Acoustic interference * Amphibians * Individual variation * Salamander * Sound production * Species recognition
OECD category: Zoology
Impact factor: 2.379, year: 2019
Method of publishing: Open access
https://peerj.com/articles/6649.pdf

Sound production is a widespread phenomenon among animals. Effective sound use for mate or species recognition requires some acoustic differentiation at an individual or species level. Several species of caudate amphibians produce underwater sounds, but information about intra- and interspecific variation in their acoustic production is missing. We examined individual, sex, and species variation in underwater sound production in adults of two sympatric newt taxa, Ichthyosaura alpestris and Lissotriton vulgaris. Individual newts produced simple low- (peak frequency = 7-8 kHz) and mid-high frequency (14-17 kHz) clicks, which greatly overlap between sexes and species. Individual differences explained about 40-50% of total variation in sound parameters. These results provide foundations for further studies on the mechanisms and eco-evolutionary consequences of underwater acoustics in newts.
Permanent Link: http://hdl.handle.net/11104/0295630