Plumage brightness and uropygial gland secretions in barn swallows

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28064933%3A_____%2F19%3AN0000008" target="_blank" >RIV/28064933:_____/19:N0000008 - isvavai.cz</a>

Výsledek na webu

<a href="https://academic.oup.com/cz/article/65/2/177/5025951" target="_blank" >https://academic.oup.com/cz/article/65/2/177/5025951</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/cz/zoy042" target="_blank" >10.1093/cz/zoy042</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Plumage brightness and uropygial gland secretions in barn swallows

Popis výsledku v původním jazyce

The uropygial gland has been hypothesized to play a role in sexual signaling through a “make-up” function derived from the effects of secretions from the gland on the appearance of the plumage and bare parts of the body. Here we show that plumage brightness of dorsal feathers of individual barn swallows Hirundo rustica was greater in mated than in unmated individuals. In addition, plumage brightness increased with colony size. Furthermore, plumage brightness was positively correlated with the amount of wax in the uropygial gland, negatively correlated with time of sampling of uropygial wax (perhaps because more wax is present early in the morning after an entire night of wax production without any preening), and negatively correlated with the number of chewing lice that degrade the plumage. Experimentally preventing barn swallows from access to the uropygial gland reduced plumage brightness, showing a causal link between secretions from the uropygial gland and plumage brightness. These findings provide evidence consistent with a role of uropygial secretions in signaling plumage brightness.

Název v anglickém jazyce

Plumage brightness and uropygial gland secretions in barn swallows

Popis výsledku anglicky

The uropygial gland has been hypothesized to play a role in sexual signaling through a “make-up” function derived from the effects of secretions from the gland on the appearance of the plumage and bare parts of the body. Here we show that plumage brightness of dorsal feathers of individual barn swallows Hirundo rustica was greater in mated than in unmated individuals. In addition, plumage brightness increased with colony size. Furthermore, plumage brightness was positively correlated with the amount of wax in the uropygial gland, negatively correlated with time of sampling of uropygial wax (perhaps because more wax is present early in the morning after an entire night of wax production without any preening), and negatively correlated with the number of chewing lice that degrade the plumage. Experimentally preventing barn swallows from access to the uropygial gland reduced plumage brightness, showing a causal link between secretions from the uropygial gland and plumage brightness. These findings provide evidence consistent with a role of uropygial secretions in signaling plumage brightness.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10614 - Behavioral sciences biology

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Current Zoology

ISSN

1674-5507

e-ISSN

2396-9814

Svazek periodika

65

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CN - Čínská lidová republika

Počet stran výsledku

6

Strana od-do

177-182

Kód UT WoS článku

000472807800006

EID výsledku v databázi Scopus

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