Incubation routine and associated changes in body mass of Gould's Petrel (Pterodroma leucoptera)

Yuna Kim*, David Priddel, Nicholas Carlile

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)

    Abstract

    Procellariiformes have prolonged incubation shifts, with breeding birds enduring long periods of fasting and substantial reductions in body mass. These changes can be physically demanding and parents must balance their own energy requirements with the needs of their unhatched young. The incubation routine and associated changes in body mass of breeding Gould's Petrel (Pterodroma leucoptera) were studied to explore the relationships between body mass, incubation shift duration and nest desertion. The incubation routine of Gould's Petrel was similar to other Procellariiformes, although shift length was particularly long for a bird of this size. Failure to complete incubation was due to egg damage or nest desertion. Temporary egg abandonment was observed in successful as well as in failed breeders, although eggs abandoned for longer than 1 day all failed. Nest desertions generally occurred before the normal duration of the incubation shift rather than after excessively long shifts caused by the late return of the partner. We conclude that incubation success was limited by both the condition of birds at the start of the shift and their tenacity to remain until relieved by their partner.

    Original languageEnglish
    Pages (from-to)193-200
    Number of pages8
    JournalEmu: austral ornithology
    Volume118
    Issue number2
    DOIs
    Publication statusPublished - 2018

    Keywords

    • body mass
    • egg abandonment
    • incubation period
    • incubation success
    • incubation shift
    • nest desertion

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