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'Out of tune': consequences of inbreeding on bird song
University of Antwerp, Belgium.
2016 (English)In: Proceedings of the Royal Society of London. Biological Sciences, ISSN 0962-8452, E-ISSN 1471-2954, Vol. 283, no 1835, article id 20161142Article in journal (Refereed) Published
Abstract [en]

The expression of bird song is expected to signal male quality to females. 'Quality' is determined by genetic and environmental factors, but, surprisingly, there is very limited evidence if and how genetic aspects of male quality are reflected in song. Here, we manipulated the genetic make-up of canaries (Serinus canaria) via inbreeding, and studied its effects upon song output, complexity, phonetics and, for the first time, song learning. To this end, we created weight-matched inbred and outbred pairs of male fledglings, which were subsequently exposed to the same tutor male during song learning. Inbreeding strongly affected syllable phonetics, but there were little or no effects on other song features. Nonetheless, females discriminated among inbred and outbred males, as they produced heavier clutches when mated with an outbred male. Our study highlights the importance of song phonetics, which has hitherto often been overlooked.

Place, publisher, year, edition, pages
2016. Vol. 283, no 1835, article id 20161142
Keywords [en]
acoustic features, canary, heterozygosity, song learning
National Category
Evolutionary Biology
Identifiers
URN: urn:nbn:se:su:diva-163401DOI: 10.1098/rspb.2016.1142PubMedID: 27466453OAI: oai:DiVA.org:su-163401DiVA, id: diva2:1274510
Available from: 2019-01-01 Created: 2019-01-01 Last updated: 2019-01-02Bibliographically approved

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