Arrival timing in subadult and adult Black Redstart males: competition-dependent behaviour?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F10%3A10081664" target="_blank" >RIV/00216208:11310/10:10081664 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/10:00011779

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Arrival timing in subadult and adult Black Redstart males: competition-dependent behaviour?

Popis výsledku v původním jazyce

The different arrival times of 1-year-old and older males is a widely recognised phenomenon in most migrating passerines. The converse pattern, i.e. the yearlings arriving at the breeding grounds at the same time as adults, has been reported only exceptionally. Two hypotheses have been formulated to explain the delayed arrival of yearling males: investment reduction and energetic constraint hypotheses. We studied arrival timing in two distinct urban populations of Black Redstart (Phoenicurus ochruros),a small passerine exhibiting delayed plumage maturation, whereby dull-coloured yearlings are easily distinguishable from black adults. The birds inhabiting South Moravian villages did not show differential timing of arrivals between yearlings and older birds in the resource-rich environment. On the other hand, under suboptimal conditions in Prague the yearlings were delayed by three days on average compared to the adult males.

Název v anglickém jazyce

Arrival timing in subadult and adult Black Redstart males: competition-dependent behaviour?

Popis výsledku anglicky

The different arrival times of 1-year-old and older males is a widely recognised phenomenon in most migrating passerines. The converse pattern, i.e. the yearlings arriving at the breeding grounds at the same time as adults, has been reported only exceptionally. Two hypotheses have been formulated to explain the delayed arrival of yearling males: investment reduction and energetic constraint hypotheses. We studied arrival timing in two distinct urban populations of Black Redstart (Phoenicurus ochruros),a small passerine exhibiting delayed plumage maturation, whereby dull-coloured yearlings are easily distinguishable from black adults. The birds inhabiting South Moravian villages did not show differential timing of arrivals between yearlings and older birds in the resource-rich environment. On the other hand, under suboptimal conditions in Prague the yearlings were delayed by three days on average compared to the adult males.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

<a href="/cs/project/IAA601410803" target="_blank" >IAA601410803: Rozpoznávání predátorů a jiných nebezpečných organismů terestrickými obratlovci</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Ethology Ecology and Evolution

ISSN

0394-9370

e-ISSN

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Svazek periodika

22

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

8

Strana od-do

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Kód UT WoS článku

000277606200001

EID výsledku v databázi Scopus

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