Diurnal and reproductive stage-dependent variation of parental behaviour in captive zebra finches

Boglarka Morvai, Sabine Nanuru, Douwe Mul, Nina Kusche, Gregory Milne, Tamas Szekely, Jan Komdeur, A. Miklósi, Akos Pogany

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Parental care plays a key role in ontogeny, life-history trade-offs, sexual selection and intrafamilial conflict. Studies focusing on understanding causes and consequences of variation in parental effort need to quantify parental behaviour accurately. The applied methods are, however, diverse even for a given species and type of parental effort, and rarely validated for accuracy. Here we focus on variability of parental behaviour from a methodological perspective to investigate the effect of different samplings on various estimates of parental effort. We used nest box cameras in a captive breeding population of zebra finches, Taeniopygia guttata, a widely used model system of sexual selection, intra-familial dynamics and parental care. We investigated diurnal and reproductive stage-dependent variation in parental effort (including incubation, brooding, nest attendance and number of feedings) based on 12h and 3h continuous video-recordings taken at various reproductive stages. We then investigated whether shorter (1h) sampling periods provided comparable estimates of overall parental effort and division of labour to those of longer (3h) sampling periods. Our study confirmed female-biased division of labour during incubation, and showed that the difference between female and male effort diminishes with advancing reproductive stage. We found individually consistent parental behaviours within given days of incubation and nestling provisioning. Furthermore, parental behaviour was consistent over the different stages of incubation, however, only female brooding was consistent over nestling provisioning. Parental effort during incubation did not predict parental effort during nestling provisioning. Our analyses revealed that 1h sampling may be influenced heavily by stochastic and diurnal variation. We suggest using a single longer sampling period (3h) may provide a consistent and accurate estimate for overall parental effort during incubation in zebra finches. Due to the large within-individual variation, we suggest repeated longer sampling over the reproductive stage may be necessary for accurate estimates of parental effort post-hatching.

Original languageEnglish
Article numbere0167368
JournalPLoS One
Volume11
Issue number12
DOIs
Publication statusPublished - Dec 1 2016

Fingerprint

Finches
parental behavior
Taeniopygia guttata
Equidae
Sampling
sampling
sexual selection
Video Recording
Personnel
Breeding
Video recording
nest boxes
diurnal variation
cameras
ontogeny
hatching
Cameras
nests
life history
Population

ASJC Scopus subject areas

  • Medicine(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

Cite this

Morvai, B., Nanuru, S., Mul, D., Kusche, N., Milne, G., Szekely, T., ... Pogany, A. (2016). Diurnal and reproductive stage-dependent variation of parental behaviour in captive zebra finches. PLoS One, 11(12), [e0167368]. https://doi.org/10.1371/journal.pone.0167368

Diurnal and reproductive stage-dependent variation of parental behaviour in captive zebra finches. / Morvai, Boglarka; Nanuru, Sabine; Mul, Douwe; Kusche, Nina; Milne, Gregory; Szekely, Tamas; Komdeur, Jan; Miklósi, A.; Pogany, Akos.

In: PLoS One, Vol. 11, No. 12, e0167368, 01.12.2016.

Research output: Contribution to journalArticle

Morvai, B, Nanuru, S, Mul, D, Kusche, N, Milne, G, Szekely, T, Komdeur, J, Miklósi, A & Pogany, A 2016, 'Diurnal and reproductive stage-dependent variation of parental behaviour in captive zebra finches', PLoS One, vol. 11, no. 12, e0167368. https://doi.org/10.1371/journal.pone.0167368
Morvai, Boglarka ; Nanuru, Sabine ; Mul, Douwe ; Kusche, Nina ; Milne, Gregory ; Szekely, Tamas ; Komdeur, Jan ; Miklósi, A. ; Pogany, Akos. / Diurnal and reproductive stage-dependent variation of parental behaviour in captive zebra finches. In: PLoS One. 2016 ; Vol. 11, No. 12.
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