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Failure to detect seasonal changes in the song system nuclei of the black-capped chickadee (Poecile atricapillus)

Lookup NU author(s): Dr Tom Smulders

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Abstract

Most temperate songbird species sing seasonally, and the brain areas involved in producing song (the song system) vary in size alongside the changes in behavior. Black-capped chickadees (Poecile atricapillus) also sing seasonally, and we find that there are changes in the stereotypy and the length of the fee-bee song from the nonbreeding to the breeding season. Yet despite these changes, we fail to find any evidence of seasonal changes in the song system. The song system of males is larger than that of females, as is typical in songbirds, but the ratio between the sexes is small compared to other species. We suggest three hypotheses to explain our failure to find seasonal variation in the chickadee song system. © 2000 Wiley Periodicals, Inc.


Publication metadata

Author(s): Smulders TV, Lisi MD, Tricomi E, Otter KA, Chruszcz B, Ratcliffe LM, DeVoogd TJ

Publication type: Article

Publication status: Published

Journal: Journal of Neurobiology

Year: 2006

Volume: 66

Issue: 9

Pages: 991-1001

ISSN (print): 0022-3034

ISSN (electronic): 1932-846X

Publisher: John Wiley & Sons, Inc.

URL: http://dx.doi.org/10.1002/neu.20281

DOI: 10.1002/neu.20281

PubMed id: 16779823


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