Parental provisioning is weakly age-dependent and heritable in a small passerine
The result's identifiers
Result code in 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>
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
Parental provisioning is weakly age-dependent and heritable in a small passerine
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - 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
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IBIS
ISSN
0019-1019
e-ISSN
1474-919X
Volume of the periodical
166
Issue of the periodical within the volume
3
Country of publishing house
GB - UNITED KINGDOM
Number of pages
14
Pages from-to
857-870
UT code for WoS article
001147513500001
EID of the result in the Scopus database
2-s2.0-85183031505