Drivers of alloparental provisioning of fledglings in a colonially breeding bird

Ogino, Mina; Maldonado Chaparro, Adriana A.; Farine, Damien R.

Drivers of alloparental provisioning of fledglings in a colonially breeding bird

Dateien

Ogino, Maldonado, Farine. 2021. Drivers of alloparental food provisioning.pdfGröße: 18.54 MBDownloads: 240

Datum

2021

Angaben zur Forschungsförderung

European Union (EU): 850859

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Exzellenzcluster "Centre for the Advanced Study of Collective Behaviour"
Biologie

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Behavioral Ecology. Oxford University Press (OUP). 2021, 32(2), pp. 316-326. ISSN 1045-2249. eISSN 1465-7279. Available under: doi: 10.1093/beheco/araa137

Zusammenfassung

Reproduction is costly. Despite this, evidence suggests that parents sometimes feed unrelated offspring. Several hypotheses could explain this puzzling phenomenon. Adults could feed unrelated offspring that are (1) of their close social associates to facilitate these juveniles’ integration into their social network (the social inheritance hypothesis), (2) potential extra-pair offspring, (3) at a similar developmental stage as their own, (4) coercing feeding by begging, or (5) less-developed (to enhance their survival, which could benefit the adult or its offspring; the group augmentation hypothesis). Colonial breeders are ideal for investigating the relative importance of these hypotheses because offspring are often kept in crèches where adults can exhibit allofeeding. Using automated monitoring of replicated captive zebra finch (Taeniopygia guttata) colonies, we found that while parents selectively fed their own offspring, they also consistently fed unrelated offspring (32.48% of feeding events). Social relationships among adults prior to breeding did not predict allofeeding, nor was allofeeding directed towards potential genetic offspring. Instead, adults with more-developed offspring preferentially fed less-developed non-offspring over non-offspring at a similar developmental stage as their own offspring, and this tendency was not explained by differences in begging behaviour. Our study suggests that allofeeding is consistent with group augmentation, potentially benefiting adults through colony maintenance or increased offspring survival.

Fachgebiet (DDC)

570 Biowissenschaften, Biologie

Schlagwörter

alloparental care, animal social networks, colonial breeding, extrapair paternity, group augmentation, parental care

Zitieren

ISO 690

OGINO, Mina, Adriana A. MALDONADO CHAPARRO, Damien R. FARINE, 2021. Drivers of alloparental provisioning of fledglings in a colonially breeding bird. In: Behavioral Ecology. Oxford University Press (OUP). 2021, 32(2), pp. 316-326. ISSN 1045-2249. eISSN 1465-7279. Available under: doi: 10.1093/beheco/araa137

BibTex

@article{Ogino2021Drive-52565,
  year={2021},
  doi={10.1093/beheco/araa137},
  title={Drivers of alloparental provisioning of fledglings in a colonially breeding bird},
  number={2},
  volume={32},
  issn={1045-2249},
  journal={Behavioral Ecology},
  pages={316--326},
  author={Ogino, Mina and Maldonado Chaparro, Adriana A. and Farine, Damien R.}
}

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Universitätsbibliographie

Nein

Begutachtet

Ja