Variation in the alarm calls of Southern House Wrens (Troglodytes musculus)

We examined variation in the structure and characteristics of alarm calls of nesting Southern House Wrens (Troglodytes musculus) during the 2007 and 2008 breeding seasons. We took multiple measures of 221 calls of 21 males and 18 females and analysed them for individual and sexual differences. We re...

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Autores principales: Fernández, G.J., Corral, M.G., Carro, M.E.
Formato: JOUR
Materias:
call structure
calling rate
communication
signal function
alarm signal
bioacoustics
breeding season
communication behavior
individual variation
nestling
ornithology
songbird
Troglodytes
Troglodytes musculus
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01584197_v112_n1_p71_Fernandez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_01584197_v112_n1_p71_Fernandez
record_format dspace
spelling todo:paper_01584197_v112_n1_p71_Fernandez2023-10-03T15:01:11Z Variation in the alarm calls of Southern House Wrens (Troglodytes musculus) Fernández, G.J. Corral, M.G. Carro, M.E. call structure calling rate communication signal function alarm signal bioacoustics breeding season communication behavior individual variation nestling ornithology songbird Troglodytes Troglodytes musculus We examined variation in the structure and characteristics of alarm calls of nesting Southern House Wrens (Troglodytes musculus) during the 2007 and 2008 breeding seasons. We took multiple measures of 221 calls of 21 males and 18 females and analysed them for individual and sexual differences. We recognised two distinctive alarm calls, named Type I (TI) and Type II (TII). Sexes did not differ in rates of calling or call structure. However, females produced TI calls more frequently and TII calls less frequently than males. Rate and acoustical structure of TI calls varied with the age of nestlings, but there was no relationship between this factor and TII calls. Individuals increased the emission of TI calls with nestling age, but these calls had lower frequencies when nestlings were older. Given the differences we found across call types, we propose that each call type has a different function, which remains to be tested. © 2012 Royal Australasian Ornithologists Union. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01584197_v112_n1_p71_Fernandez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic call structure
calling rate
communication
signal function
alarm signal
bioacoustics
breeding season
communication behavior
individual variation
nestling
ornithology
songbird
Troglodytes
Troglodytes musculus
spellingShingle call structure
calling rate
communication
signal function
alarm signal
bioacoustics
breeding season
communication behavior
individual variation
nestling
ornithology
songbird
Troglodytes
Troglodytes musculus
Fernández, G.J.
Corral, M.G.
Carro, M.E.
Variation in the alarm calls of Southern House Wrens (Troglodytes musculus)
topic_facet call structure
calling rate
communication
signal function
alarm signal
bioacoustics
breeding season
communication behavior
individual variation
nestling
ornithology
songbird
Troglodytes
Troglodytes musculus
description We examined variation in the structure and characteristics of alarm calls of nesting Southern House Wrens (Troglodytes musculus) during the 2007 and 2008 breeding seasons. We took multiple measures of 221 calls of 21 males and 18 females and analysed them for individual and sexual differences. We recognised two distinctive alarm calls, named Type I (TI) and Type II (TII). Sexes did not differ in rates of calling or call structure. However, females produced TI calls more frequently and TII calls less frequently than males. Rate and acoustical structure of TI calls varied with the age of nestlings, but there was no relationship between this factor and TII calls. Individuals increased the emission of TI calls with nestling age, but these calls had lower frequencies when nestlings were older. Given the differences we found across call types, we propose that each call type has a different function, which remains to be tested. © 2012 Royal Australasian Ornithologists Union.
format JOUR
author Fernández, G.J.
Corral, M.G.
Carro, M.E.
author_facet Fernández, G.J.
Corral, M.G.
Carro, M.E.
author_sort Fernández, G.J.
title Variation in the alarm calls of Southern House Wrens (Troglodytes musculus)
title_short Variation in the alarm calls of Southern House Wrens (Troglodytes musculus)
title_full Variation in the alarm calls of Southern House Wrens (Troglodytes musculus)
title_fullStr Variation in the alarm calls of Southern House Wrens (Troglodytes musculus)
title_full_unstemmed Variation in the alarm calls of Southern House Wrens (Troglodytes musculus)
title_sort variation in the alarm calls of southern house wrens (troglodytes musculus)
url http://hdl.handle.net/20.500.12110/paper_01584197_v112_n1_p71_Fernandez
work_keys_str_mv AT fernandezgj variationinthealarmcallsofsouthernhousewrenstroglodytesmusculus
AT corralmg variationinthealarmcallsofsouthernhousewrenstroglodytesmusculus
AT carrome variationinthealarmcallsofsouthernhousewrenstroglodytesmusculus
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