Male's age and plumage coloration predicts brood sex ratio in the Common Kingfisher (Alcedo atthis)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F24%3A73627781" target="_blank" >RIV/61989592:15310/24:73627781 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1007/s10336-023-02107-2" target="_blank" >https://link.springer.com/article/10.1007/s10336-023-02107-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10336-023-02107-2" target="_blank" >10.1007/s10336-023-02107-2</a>

Result language

angličtina

Original language name

Male's age and plumage coloration predicts brood sex ratio in the Common Kingfisher (Alcedo atthis)

Original language description

Plumage ornaments of birds, both pigment-based and structural, are considered age or condition-dependent, honestly signalling male quality, sexually selected traits, influencing the variation in breeding performance as well as adaptive sex allocation. In the present study, we examine the effect of age of males on the plumage structural colour in Common Kingfisher, and evaluate the breeding output (laying date, total number of young per breeding season, mean number of young per nest, total number of broods) and sex ratio in relation to two ornamental traits (forehead and rump structural colour). During the three years 2016-2018 in the Danube river system (south-western Slovakia), we collected data from 49 males, 102 broods and 645 nestlings. Our data demonstrate that structural colour is a condition-related and age-sensitive signal, while males with increased weight expressed less saturated blue forehead feathers, and old males displayed more saturated cyan rump feathers than young ones. Moreover, the brood sex ratio varies with male coloration in an age-dependent manner. The plumage colour of young males did not affect the brood sex ratio, whereas old males with increasing intensity of cyan rump had more sons than duller ones. Neither single ornamental trait nor age predicted breeding output of kingfisher males. Nevertheless, our results indicate that the blue structural plumage of kingfisher males may serve as an indicator of age and a certain kind of quality with a consequence on adaptive sex allocation in this species.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10615 - Ornithology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

JOURNAL OF ORNITHOLOGY

ISSN

2193-7192

e-ISSN

2193-7206

Volume of the periodical

165

Issue of the periodical within the volume

1

Country of publishing house

DE - GERMANY

Number of pages

10

Pages from-to

439-448

UT code for WoS article

001187934700001

EID of the result in the Scopus database

2-s2.0-85170253835