Parental provisioning is weakly age-dependent and heritable in a small passerine

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F24%3A73628283" target="_blank" >RIV/61989592:15310/24:73628283 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13307" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/10.1111/ibi.13307</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/ibi.13307" target="_blank" >10.1111/ibi.13307</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Parental provisioning is weakly age-dependent and heritable in a small passerine

Popis výsledku v původním jazyce

Parental care in birds encompasses many behaviours, from selecting nest sites and supplying eggs with nutrients to incubation and offspring provisioning. Unlike the early stages, where offspring are passive receivers of care, chicks actively solicit care after hatching. This may lead to either parent-offspring conflict or coadaptation, or both, if there is genetic variance in both parental provisioning and offspring begging. However, given that parental provisioning is highly responsive to brood size and age, its genetic determination is questioned. In this study, we used a multigenerational pedigree and 11 years of provisioning data to dissect the variation in this trait in the Collared Flycatcher Ficedula albicollis, and to examine whether offspring provisioning changes as parents age. We found that the parental provisioning rate is weakly repeatable (r = 0.088 – 0.213) and heritable (h2 = 0.052 – 0.158). Higher values were obtained when calculated based on within-individual averages rather than individual measurements, and after adjusting for fixed effects. Older parents provisioned offspring at a lower frequency than younger ones. An additive genetic component in provisioning indicates potential for the evolution of parental care, parent-offspring coadaptation and indirect genetic effects on offspring traits. Future studies employing new tracking technologies, including accelerometers, radars, and RFID readers, may help determine whether senescence or increased experience causes the lower rate of offspring provisioning observed in older parents.

Název v anglickém jazyce

Parental provisioning is weakly age-dependent and heritable in a small passerine

Popis výsledku anglicky

Parental care in birds encompasses many behaviours, from selecting nest sites and supplying eggs with nutrients to incubation and offspring provisioning. Unlike the early stages, where offspring are passive receivers of care, chicks actively solicit care after hatching. This may lead to either parent-offspring conflict or coadaptation, or both, if there is genetic variance in both parental provisioning and offspring begging. However, given that parental provisioning is highly responsive to brood size and age, its genetic determination is questioned. In this study, we used a multigenerational pedigree and 11 years of provisioning data to dissect the variation in this trait in the Collared Flycatcher Ficedula albicollis, and to examine whether offspring provisioning changes as parents age. We found that the parental provisioning rate is weakly repeatable (r = 0.088 – 0.213) and heritable (h2 = 0.052 – 0.158). Higher values were obtained when calculated based on within-individual averages rather than individual measurements, and after adjusting for fixed effects. Older parents provisioned offspring at a lower frequency than younger ones. An additive genetic component in provisioning indicates potential for the evolution of parental care, parent-offspring coadaptation and indirect genetic effects on offspring traits. Future studies employing new tracking technologies, including accelerometers, radars, and RFID readers, may help determine whether senescence or increased experience causes the lower rate of offspring provisioning observed in older parents.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10615 - Ornithology

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

IBIS

ISSN

0019-1019

e-ISSN

1474-919X

Svazek periodika

166

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

857-870

Kód UT WoS článku

001147513500001

EID výsledku v databázi Scopus

2-s2.0-85183031505