Timing of natal nests is an important factor affecting return rates of juvenile Great Reed Warblers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F18%3A00477914" target="_blank" >RIV/68081766:_____/18:00477914 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/18:10378273

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10336-017-1492-1" target="_blank" >http://dx.doi.org/10.1007/s10336-017-1492-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10336-017-1492-1" target="_blank" >10.1007/s10336-017-1492-1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Timing of natal nests is an important factor affecting return rates of juvenile Great Reed Warblers

Popis výsledku v původním jazyce

In many bird species, return rates tend to be greatest in the vicinity of their hatching site, thus natal philopatry is an important trait in avian demography. In the present study, we examined how conditions in natal nests affect return rates and dispersal distances of a long-distance migratory passerine. From 2008 to 2016, we studied a colour-ringed population of the Great Reed Warbler Acrocephalus arundinaceus breeding in southeastern Czech Republic. Almost 10% of the 1430 ringed individuals returned to the study site within 2 years after fledging. Birds originating from earlier broods were more likely to return than birds from delayed broods. The variation in local dispersal distances was explained by the sex of the recruits: males dispersed shorter distances than females. There was no evidence that return rates and dispersal distances in Great Reed Warbler are related to other factors closely linked to the condition in the natal nest, namely brood social status and brood size. While the higher return rates of the juveniles from earlier broods is in concordance with the findings of other studies, the sex-related difference in dispersal distances does not correspond with what was found in Great Reed Warbler juveniles in other studies and adults at the same study site. Our results show that early breeding produces more local recruits and that sex-biased dispersal may be site specific.

Název v anglickém jazyce

Timing of natal nests is an important factor affecting return rates of juvenile Great Reed Warblers

Popis výsledku anglicky

In many bird species, return rates tend to be greatest in the vicinity of their hatching site, thus natal philopatry is an important trait in avian demography. In the present study, we examined how conditions in natal nests affect return rates and dispersal distances of a long-distance migratory passerine. From 2008 to 2016, we studied a colour-ringed population of the Great Reed Warbler Acrocephalus arundinaceus breeding in southeastern Czech Republic. Almost 10% of the 1430 ringed individuals returned to the study site within 2 years after fledging. Birds originating from earlier broods were more likely to return than birds from delayed broods. The variation in local dispersal distances was explained by the sex of the recruits: males dispersed shorter distances than females. There was no evidence that return rates and dispersal distances in Great Reed Warbler are related to other factors closely linked to the condition in the natal nest, namely brood social status and brood size. While the higher return rates of the juveniles from earlier broods is in concordance with the findings of other studies, the sex-related difference in dispersal distances does not correspond with what was found in Great Reed Warbler juveniles in other studies and adults at the same study site. Our results show that early breeding produces more local recruits and that sex-biased dispersal may be site specific.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10615 - Ornithology

Projekt

<a href="/cs/project/GA13-06451S" target="_blank" >GA13-06451S: Linking events through the annual cycle: the importance of carry-over effects for the ecology of migratory birds</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Journal of Ornithology

ISSN

0021-8375

e-ISSN

—

Svazek periodika

159

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

183-190

Kód UT WoS článku

000422933200016

EID výsledku v databázi Scopus

2-s2.0-85044763337