Song sharing and repertoire size in the sedge warbler, Acrocephalus schoenobaenus: changes within and between years

Nicolson, Joanne S., Buchanan, Katherine L., Marshall, Rupert C. and Catchpole, Clive 2007, Song sharing and repertoire size in the sedge warbler, Acrocephalus schoenobaenus: changes within and between years, Animal behaviour, vol. 74, no. 5, pp. 1585-1592.

Attached Files
Name Description MIMEType Size Downloads

Title Song sharing and repertoire size in the sedge warbler, Acrocephalus schoenobaenus: changes within and between years
Formatted title Song sharing and repertoire size in the sedge warbler, Acrocephalus schoenobaenus : changes within and between years
Author(s) Nicolson, Joanne S.
Buchanan, Katherine L.
Marshall, Rupert C.
Catchpole, Clive
Journal name Animal behaviour
Volume number 74
Issue number 5
Start page 1585
End page 1592
Publisher Baillière, Tindall and Cassell [etc.].
Place of publication London, England
Publication date 2007-11
ISSN 0003-3472
1095-8282
Keyword(s) acrocephalus schoenobaenus
age
neighbour
sedge warbler
song sharing
repertoire
Summary The complex song of the male sedge warbler functions mainly in sexual attraction and the evolution of repertoire size is driven primarily by female choice. As male song ceases upon pairing, male–male singing interactions are relatively brief and have not been studied to our knowledge. This study shows that young males in their first breeding season shared significantly more syllables with their nearest neighbour than with their fathers or more distant males. Moreover, daily recordings revealed that rapid learning and modification of syllable repertoires occurred, resulting in a progressive increase in sharing within just a few days. This does not lead to a gradual increase in repertoire size as some syllables are dropped and new ones are acquired. This turnover process allows males to share syllables with their neighbours, whilst repertoire size, known to be important in female choice, remains relatively constant in any one year. Individual males were followed for several years and also showed considerable syllable turnover between years. However, in this case, repertoire size was found to increase between years, the largest increase occurring between the first and second years. We obtained a significant positive correlation between repertoire size and age, suggesting that females choosing males with larger repertoires may gain indirect (genetic) benefits for their offspring, such as good genes for viability. Whilst these results reveal a more flexible picture of repertoire turnover than previously suspected, the relative stability of repertoire size within a season and the increase with age suggests that repertoire size remains a likely target for sexual selection by female choice.
Language eng
Field of Research 060399 Evolutionary Biology not elsewhere classified
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2007, The Association for the Study of Animal Behaviour
Persistent URL http://hdl.handle.net/10536/DRO/DU:30018525

Document type: Journal Article
Collection: School of Life and Environmental Sciences
Connect to link resolver
 
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 25 times in TR Web of Science
Scopus Citation Count Cited 23 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 371 Abstract Views, 0 File Downloads  -  Detailed Statistics
Created: Mon, 07 Sep 2009, 14:35:43 EST by Leanne Swaneveld

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.