Long incubation bouts and biparental incubation in the nomadic Banded Stilt

Pedler, Reece D., Weston, Michael A. and Bennett, Andrew T. D. 2016, Long incubation bouts and biparental incubation in the nomadic Banded Stilt, Emu, vol. 116, no. 1, pp. 75-80, doi: 10.1071/MU15061.

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Title Long incubation bouts and biparental incubation in the nomadic Banded Stilt
Author(s) Pedler, Reece D.
Weston, Michael A.ORCID iD for Weston, Michael A. orcid.org/0000-0002-8717-0410
Bennett, Andrew T. D.ORCID iD for Bennett, Andrew T. D. orcid.org/0000-0001-8512-2805
Journal name Emu
Volume number 116
Issue number 1
Start page 75
End page 80
Total pages 6
Publisher CSIRO Publishing
Place of publication Melbourne, Vic.
Publication date 2016
ISSN 0158-4197
Keyword(s) desert
parental care
shorebirds
Summary Parental care strategies have been widely investigated in shorebirds that undertake long-distance regular migrations. In contrast, virtually nothing is known of the parental care of nomadic, opportunistically breeding shorebirds, although the irregular and short-lived nature of their breeding potentially accentuates the trade-offs between investment in successive clutches and between the sexes. We investigated the incubation behaviour of the nomadic, opportunistically breeding Banded Stilt (Cladorhynchus leucocephalus). Seven nests, filmed continuously with day–night cameras over 2–7 days, revealed that both sexes contributed to incubation, with males apparently the sole carer during hatching and early brood-rearing; this is a possible adaptation, which enables females to quickly produce a second clutch if favourable conditions persist. All incubator changeovers occurred after dark; incubation shifts averaged 44.8 ± 10.9 (s.e.m.) h (n = 11, 17.5–139.6 h), the longest recorded for any shorebird. Incubation constancy averaged 96.5%; this high value is possibly an adaptation to high predation and the need for rapid embryonic development in the face of ephemeral resources for breeding. Long incubation shifts may be explained by extended foraging trips to distant areas of the partially inundated salt-lake surface, where food resources had been concentrated by wind-driven water movement.
Language eng
DOI 10.1071/MU15061
Field of Research 060809 Vertebrate Biology
Socio Economic Objective 960811 Sparseland, Permanent Grassland and Arid Zone Flora, Fauna and Biodiversity
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, CSIRO Publishing
Persistent URL http://hdl.handle.net/10536/DRO/DU:30080320

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