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Experience affects immediate early gene expression in response to conspecific call notes in black-capped chickadees (Poecile atricapillus)

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Hahn_et_al_BBR_acceptedmanuscript.pdf (625.2Kb)
Date
01/07/2015
Author
Hahn, Allison H
Guillette, Lauren M
Lee, Daniel
McMillan, Neil
Hoang, John
Sturdy, Christopher B
Keywords
Black-capped chickadee
Songbird
Hand-reared
ZENK
Auditory perception
RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
QH301 Biology
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Abstract
Black-capped chickadees (Poecile atricapillus) produce numerous vocalizations, including the acoustically complex chick-a-dee call that is composed of A, B, C, and D notes. D notes are longer in duration and lower in frequency than the other note types and contain information regarding flock and species identification. Adult wild-caught black-capped chickadees have been shown to have similar amounts of immediate early gene (IEG) expression following playback of vocalizations with harmonic-like acoustic structure, similar to D notes. Here we examined how different environmental experiences affect IEG response to conspecific D notes. We hand-reared black-capped chickadees under three conditions: (1) with adult conspecifics, (2) with adult heterospecific mountain chickadees, and (3) without adults. We presented all hand-reared birds and a control group of field-reared black-capped chickadees, with conspecific D notes and quantified IEG expression in the caudomedial mesopallium (CMM) and caudomedial nidopallium (NCM). We found that field-reared birds that heard normal D notes had a similar neural response as a group of field-reared birds that heard playback of reversed D notes. Field-reared birds that heard normal D notes also had a similar neural response as birds reared with adult conspecifics. Birds reared without adults had a significantly reduced IEG response, whereas the IEG expression in birds reared with heterospecifics was at intermediate levels between birds reared with conspecifics and birds reared without adults. Although acoustic characteristics have been shown to drive IEG expression, our results demonstrate that experience with adults or normal adult vocalizations is also an important factor.
Citation
Hahn , A H , Guillette , L M , Lee , D , McMillan , N , Hoang , J & Sturdy , C B 2015 , ' Experience affects immediate early gene expression in response to conspecific call notes in black-capped chickadees ( Poecile atricapillus ) ' , Behavioural Brain Research , vol. 287 , pp. 49-58 . https://doi.org/10.1016/j.bbr.2015.03.021
Publication
Behavioural Brain Research
Status
Peer reviewed
DOI
https://doi.org/10.1016/j.bbr.2015.03.021
ISSN
0166-4328
Type
Journal article
Rights
Copyright © 2015 Elsevier B.V. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://dx.doi.org/10.1016/j.bbr.2015.03.021
Description
This research was supported by a Natural Sciences and Engineering Research Council of Canada (NSERC) Discovery Grant and Discovery Accelerator Supplement, an Alberta Ingenuity Fund (AIF) New Faculty Grant, a Canada Foundation for Innovation (CFI) New Opportunities Fund (NOF), and Infrastructure Operating Fund (IOF) grants along with start-up funding and CFI partner funding from the University of Alberta (UofA) to C.B.S. L.M.G. was supported by an Izaak Walton Killam Memorial Scholarship (IWKMS) at UofA and is currently supported by a Newton International Fellowship jointly run by the Royal Society and the British Academy.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/8466

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