First record of hatchling overwintering inside the natal nest of a chelid turtle

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    Hatchling overwintering inside the natal nest is a strategy used by several Northern Hemisphere species of freshwater turtles. We recorded hatchling overwintering in the nest by Chelodina longicollis (Chelidae) in south-eastern Australia, during three reproductive seasons. Hatchlings spent, on average, 320 days inside the nest from the date eggs were laid until emergence. Some nests were carefully opened adjacent to the nest plug, one during winter and one in spring, to confirm that eggs had hatched and were not in diapause, although we could not precisely confirm hatching dates. Despite our small sample size, we observed a dichotomous overwintering strategy, with hatchlings from one nest emerging in autumn and spending their first winter in the aquatic environment, and hatchlings from three nests overwintering in the nest and emerging in spring. These findings expand the phylogenetic range of turtles exhibiting hatchling overwintering behaviour. Future research should evaluate whether this strategy is widespread among other long-necked turtles in temperate regions and examine physiological mechanisms involved in coping with winter temperatures.
    Original languageEnglish
    Pages (from-to)287-291
    Number of pages5
    JournalAustralian Journal of Zoology
    Volume63
    Issue number4
    DOIs
    Publication statusPublished - 2015

    Fingerprint

    overwintering
    turtle
    turtles
    nest
    nests
    winter
    Chelidae
    hatching date
    egg
    coping strategies
    diapause
    aquatic environment
    breeding season
    Northern Hemisphere
    hatching
    autumn
    phylogenetics
    phylogeny

    Cite this

    @article{5672bc02a02a4a41898e31503b3dc164,
    title = "First record of hatchling overwintering inside the natal nest of a chelid turtle",
    abstract = "Hatchling overwintering inside the natal nest is a strategy used by several Northern Hemisphere species of freshwater turtles. We recorded hatchling overwintering in the nest by Chelodina longicollis (Chelidae) in south-eastern Australia, during three reproductive seasons. Hatchlings spent, on average, 320 days inside the nest from the date eggs were laid until emergence. Some nests were carefully opened adjacent to the nest plug, one during winter and one in spring, to confirm that eggs had hatched and were not in diapause, although we could not precisely confirm hatching dates. Despite our small sample size, we observed a dichotomous overwintering strategy, with hatchlings from one nest emerging in autumn and spending their first winter in the aquatic environment, and hatchlings from three nests overwintering in the nest and emerging in spring. These findings expand the phylogenetic range of turtles exhibiting hatchling overwintering behaviour. Future research should evaluate whether this strategy is widespread among other long-necked turtles in temperate regions and examine physiological mechanisms involved in coping with winter temperatures.",
    author = "J Roe and Arthur GEORGES",
    year = "2015",
    doi = "10.1071/ZO15044",
    language = "English",
    volume = "63",
    pages = "287--291",
    journal = "Australian Journal of Zoology",
    issn = "0004-959X",
    publisher = "CSIRO",
    number = "4",

    }

    First record of hatchling overwintering inside the natal nest of a chelid turtle. / Roe, J; GEORGES, Arthur.

    In: Australian Journal of Zoology, Vol. 63, No. 4, 2015, p. 287-291.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - First record of hatchling overwintering inside the natal nest of a chelid turtle

    AU - Roe, J

    AU - GEORGES, Arthur

    PY - 2015

    Y1 - 2015

    N2 - Hatchling overwintering inside the natal nest is a strategy used by several Northern Hemisphere species of freshwater turtles. We recorded hatchling overwintering in the nest by Chelodina longicollis (Chelidae) in south-eastern Australia, during three reproductive seasons. Hatchlings spent, on average, 320 days inside the nest from the date eggs were laid until emergence. Some nests were carefully opened adjacent to the nest plug, one during winter and one in spring, to confirm that eggs had hatched and were not in diapause, although we could not precisely confirm hatching dates. Despite our small sample size, we observed a dichotomous overwintering strategy, with hatchlings from one nest emerging in autumn and spending their first winter in the aquatic environment, and hatchlings from three nests overwintering in the nest and emerging in spring. These findings expand the phylogenetic range of turtles exhibiting hatchling overwintering behaviour. Future research should evaluate whether this strategy is widespread among other long-necked turtles in temperate regions and examine physiological mechanisms involved in coping with winter temperatures.

    AB - Hatchling overwintering inside the natal nest is a strategy used by several Northern Hemisphere species of freshwater turtles. We recorded hatchling overwintering in the nest by Chelodina longicollis (Chelidae) in south-eastern Australia, during three reproductive seasons. Hatchlings spent, on average, 320 days inside the nest from the date eggs were laid until emergence. Some nests were carefully opened adjacent to the nest plug, one during winter and one in spring, to confirm that eggs had hatched and were not in diapause, although we could not precisely confirm hatching dates. Despite our small sample size, we observed a dichotomous overwintering strategy, with hatchlings from one nest emerging in autumn and spending their first winter in the aquatic environment, and hatchlings from three nests overwintering in the nest and emerging in spring. These findings expand the phylogenetic range of turtles exhibiting hatchling overwintering behaviour. Future research should evaluate whether this strategy is widespread among other long-necked turtles in temperate regions and examine physiological mechanisms involved in coping with winter temperatures.

    U2 - 10.1071/ZO15044

    DO - 10.1071/ZO15044

    M3 - Article

    VL - 63

    SP - 287

    EP - 291

    JO - Australian Journal of Zoology

    JF - Australian Journal of Zoology

    SN - 0004-959X

    IS - 4

    ER -