Vocal mimicry in the song of Icterine warblers (Hippolais icterina): possible functions and sources of variability

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F18%3A43897206" target="_blank" >RIV/60076658:12310/18:43897206 - isvavai.cz</a>

Výsledek na webu

<a href="https://kopernio.com/viewer?doi=10.1080/03949370.2017.1412356&route=1" target="_blank" >https://kopernio.com/viewer?doi=10.1080/03949370.2017.1412356&route=1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/03949370.2017.1412356" target="_blank" >10.1080/03949370.2017.1412356</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Vocal mimicry in the song of Icterine warblers (Hippolais icterina): possible functions and sources of variability

Popis výsledku v původním jazyce

Vocal mimicry in birds is a well-known phenomenon, but in the majority of bird mimic species, its function, variability and accuracy still remain undiscovered. We analysed the song of 23 Icterine warbler (Hippolais icterina) males in eske Budejovice (Czech Republic) and identified 52 mimicked species. Our results showed that Icterine warbler males (1) mimicked species that are present in their territories (i.e. passive sampling hypothesis), (2) mimicked alarm calls more frequently than non-alarm calls (i.e. alarm call hypothesis), (3) produced species-specific non-mimetic song that is most similar to the alarm calls of frequently mimicked species (i.e. acoustic similarity hypothesis) and (4) produced mimicry that is not perfect, but still acoustically convincing. These results suggest that Icterine warbler males largely reflect the surrounding acoustic environment in their song, but simultaneously selectively include vocalisations that are similar to their own song as a result of physiological constraints. We further found that (5) songs of neighbours are not more similar compared with more distant males and (6) there is no relationship between genetic and song similarity suggesting that song is learned mainly from heterospecifics.

Název v anglickém jazyce

Vocal mimicry in the song of Icterine warblers (Hippolais icterina): possible functions and sources of variability

Popis výsledku anglicky

Vocal mimicry in birds is a well-known phenomenon, but in the majority of bird mimic species, its function, variability and accuracy still remain undiscovered. We analysed the song of 23 Icterine warbler (Hippolais icterina) males in eske Budejovice (Czech Republic) and identified 52 mimicked species. Our results showed that Icterine warbler males (1) mimicked species that are present in their territories (i.e. passive sampling hypothesis), (2) mimicked alarm calls more frequently than non-alarm calls (i.e. alarm call hypothesis), (3) produced species-specific non-mimetic song that is most similar to the alarm calls of frequently mimicked species (i.e. acoustic similarity hypothesis) and (4) produced mimicry that is not perfect, but still acoustically convincing. These results suggest that Icterine warbler males largely reflect the surrounding acoustic environment in their song, but simultaneously selectively include vocalisations that are similar to their own song as a result of physiological constraints. We further found that (5) songs of neighbours are not more similar compared with more distant males and (6) there is no relationship between genetic and song similarity suggesting that song is learned mainly from heterospecifics.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10615 - Ornithology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Ethology Ecology &amp; Evolution

ISSN

0394-9370

e-ISSN

—

Svazek periodika

30

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

17

Strana od-do

430-446

Kód UT WoS článku

000439730300004

EID výsledku v databázi Scopus

2-s2.0-85038622824