Feather ornaments are dynamic traits in the Great Tit Parus major

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F11%3A33119777" target="_blank" >RIV/61989592:15310/11:33119777 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1111/j.1474-919X.2010.01097.x" target="_blank" >http://dx.doi.org/10.1111/j.1474-919X.2010.01097.x</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/j.1474-919X.2010.01097.x" target="_blank" >10.1111/j.1474-919X.2010.01097.x</a>

Result language
angličtina
Original language name
Feather ornaments are dynamic traits in the Great Tit Parus major
Original language description
In behavioural studies it has been common to quantify plumage colours or ornaments over a range of dates and link them to fitness characteristics without accounting for seasonal changes in these traits. Such changes are likely to be widespread among birds, yet we lack assessments of this variability within individuals. We studied both within- and between-individual temporal changes in Great Tit Parus major ornaments, specifically the melanin-based black breast stripe and the pigment-free white cheek patch. During the non-breeding season both ornaments varied. In juveniles and adult females, the area of the breast stripe first rose and then, from near the end of December, decreased. In adult males there was a linear decrease. In the cheek patch, the irregularity of the cheek borders showed either a linear (adults) or a non-linear (juveniles) increase as the season progressed. In individuals repeatedly sampled during the same winter, the decrease in the size of the breast stripe was larg
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EG - Zoology
OECD FORD branch
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Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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