Does testosterone determine dominance in the house sparrow Passer domesticus? An experimental test

Buchanan, K. L., Evans, M. R., Roberts, M. L., Rowe, L. and Goldsmith, A. R. 2010, Does testosterone determine dominance in the house sparrow Passer domesticus? An experimental test, Journal of avian biology, vol. 41, no. 4, pp. 445-451.

Attached Files
Name Description MIMEType Size Downloads

Title Does testosterone determine dominance in the house sparrow Passer domesticus? An experimental test
Formatted title Does testosterone determine dominance in the house sparrow Passer domesticus? An experimental test
Author(s) Buchanan, K. L.
Evans, M. R.
Roberts, M. L.
Rowe, L.
Goldsmith, A. R.
Journal name Journal of avian biology
Volume number 41
Issue number 4
Start page 445
End page 451
Total pages 7
Publisher Wiley-Blackwell Munksgaard
Place of publication Copenhagen, Denmark
Publication date 2010-07
ISSN 0908-8857
1600-048X
Keyword(s) Passer domesticus
dominance hierarchies
testosterone
Summary Badges of status function in many birds within a social context to establish dominance hierarchies and reduce antagonistic encounters. In order to maintain the honesty of the signalling system, such badges must be costly to produce or to maintain. The chest bib of the house sparrow functions as a badge of status and changes in size are known to be controlled by testosterone levels. We sought to test the relative importance of testosterone as opposed to bib size in determining dominance within a group of male house sparrows. We did this by manipulating testosterone levels independently during both breeding and post-breeding seasons in experimental birds and examining the effect of testosterone titre, as well as corticosterone titre relative to bib size on dominance levels. Dominance hierarchies within the groups were tested during both the breeding and post-breeding phases. We compared the results of these tests with dominance among intact (unmanipulated) birds. Results suggested that the breeding season dominance levels were largely determined by testosterone levels as well as bib size, whereas the post-breeding dominance levels were determined by postbreeding testosterone titre and previous breeding season dominance level. Within unmanipulated birds, basal corticosterone levels were significantly, negatively correlated with dominance level, but only during the breeding season. The influence of breeding season dominance on post-breeding dominance suggests social history is important in determining dominance interactions as well as current testosterone levels and bib size.
Language eng
Field of Research 060399 Evolutionary Biology not elsewhere classified
Socio Economic Objective 960805 Flora, Fauna and Biodiversity at Regional or Larger Scales
HERDC Research category C1 Refereed article in a scholarly journal
HERDC collection year 2010
Copyright notice ©2010, The Authors
Persistent URL http://hdl.handle.net/10536/DRO/DU:30029480

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 5 times in TR Web of Science
Scopus Citation Count Cited 5 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 334 Abstract Views, 3 File Downloads  -  Detailed Statistics
Created: Fri, 30 Jul 2010, 15:09:06 EST by Teresa Treffry

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.