Title
Age- and behavior-related variation in the volume of song control nuclei in male European starlingsAge- and behavior-related variation in the volume of song control nuclei in male European starlings
Author
Faculty/Department
Faculty of Sciences. Biology
Research group
Behavioural Ecology & Ecophysiology
Publication type
article
Publication
New York,
Subject
Human medicine
Source (journal)
Journal of neurobiology. - New York
Volume/pages
30(1996):3, p. 329-339
ISSN
0022-3034
ISI
A1996UU35100002
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
There is considerable interindividual variation in the volumes of song control nuclei, Sex and physiological condition appear to contribute to these differences; however, these factors alone do not account for all of the variation, Studies have attempted to relate differences in song behavior(i.e., song repertoire size) to variation in song nucleus volume, but have met with mixed success, In this article, two studies are presented that used male European starlings (Sturnus vulgaris) to explore the relationship between song nuclei volumes and age-related differences in song behavior and interindividual variation in song behavior in adults, The results of the first study showed that song repertoire size and song bout length were significantly greater in older adult than in yearling males, In addition, the volumes of the high vocal center (HVC) and nucleus robustus archistriatalis (RA) were significantly larger in older adults than yearlings, Area X of the parolfactory lobe did not differ significantly in volume between the two age classes, In the second study, both HVC and RA volume correlated positively with song bout length but not repertoire size among adult birds, Based on these results a new hypothesis is presented that states that variation in song nuclei volumes in starlings relates more to the amount of song produced than to the number of song types stored in memory. (C) 1996 John Wiley & Sons, Inc.
E-info
https://repository.uantwerpen.be/docman/iruaauth/12abad/a722792.pdf
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