Demography of the Helmeted Honeyeater (Lichenostomus melanops cassidix)

I SMALES, B QUIN, P MENKHORST, Donald Franklin

    Research output: Contribution to journalArticleResearchpeer-review

    Abstract

    Understanding the demography of threatened taxa is essential for formulating effective management strategies for their conservation and for making predictions about their long-term prospects. With fewer than 25 breeding pairs in the current wild population, the Helmeted Honeyeater (Lichenostomus melanops cassidix) is one of the most threatened birds in Australia. Demography of the sole wild population of the Helmeted Honeyeater was investigated by monitoring 526 nests between 1984 and 1996 and 324 colour-banded birds between 1984 and 2008. Throughout the study, the population was effectively closed, there being no evidence of immigration or emigration. Mean survivorship of nests from laying to fledging was 0.17, and mean survivorship of juveniles (from 40 days to 1 year of age) was 0.63. Weighted mean annual survivorship of adult females and males was 0.75 and 0.81 respectively. The population showed little between-year variation in annual productivity and survivorship, with sufficient recruitment for positive population growth. In general, the population dynamics of the Helmeted Honeyeater fit the pattern of an 'old endemic' Australian passerine, with low survival of eggs and chicks, extended parental care of juveniles and high survivorship of juveniles and adults. Eggs and chicks that would not naturally survive are a resource that may be used to assist recovery of the population. � 2009 Royal Australasian Ornithologists Union.
    Original languageEnglish
    Pages (from-to)352-359
    Number of pages8
    JournalEmu
    Volume109
    Issue number4
    Publication statusPublished - 2009

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    survivorship
    demography
    survival rate
    wild population
    nest
    egg
    bird
    chicks
    nests
    fledging
    parental care
    passerine
    emigration
    immigration
    threatened species
    population growth
    population dynamics
    breeding
    Lichenostomus melanops cassidix
    productivity

    Cite this

    SMALES, I., QUIN, B., MENKHORST, P., & Franklin, D. (2009). Demography of the Helmeted Honeyeater (Lichenostomus melanops cassidix). Emu, 109(4), 352-359.
    SMALES, I ; QUIN, B ; MENKHORST, P ; Franklin, Donald. / Demography of the Helmeted Honeyeater (Lichenostomus melanops cassidix). In: Emu. 2009 ; Vol. 109, No. 4. pp. 352-359.
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    abstract = "Understanding the demography of threatened taxa is essential for formulating effective management strategies for their conservation and for making predictions about their long-term prospects. With fewer than 25 breeding pairs in the current wild population, the Helmeted Honeyeater (Lichenostomus melanops cassidix) is one of the most threatened birds in Australia. Demography of the sole wild population of the Helmeted Honeyeater was investigated by monitoring 526 nests between 1984 and 1996 and 324 colour-banded birds between 1984 and 2008. Throughout the study, the population was effectively closed, there being no evidence of immigration or emigration. Mean survivorship of nests from laying to fledging was 0.17, and mean survivorship of juveniles (from 40 days to 1 year of age) was 0.63. Weighted mean annual survivorship of adult females and males was 0.75 and 0.81 respectively. The population showed little between-year variation in annual productivity and survivorship, with sufficient recruitment for positive population growth. In general, the population dynamics of the Helmeted Honeyeater fit the pattern of an 'old endemic' Australian passerine, with low survival of eggs and chicks, extended parental care of juveniles and high survivorship of juveniles and adults. Eggs and chicks that would not naturally survive are a resource that may be used to assist recovery of the population. � 2009 Royal Australasian Ornithologists Union.",
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    SMALES, I, QUIN, B, MENKHORST, P & Franklin, D 2009, 'Demography of the Helmeted Honeyeater (Lichenostomus melanops cassidix)', Emu, vol. 109, no. 4, pp. 352-359.

    Demography of the Helmeted Honeyeater (Lichenostomus melanops cassidix). / SMALES, I; QUIN, B; MENKHORST, P; Franklin, Donald.

    In: Emu, Vol. 109, No. 4, 2009, p. 352-359.

    Research output: Contribution to journalArticleResearchpeer-review

    TY - JOUR

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    AU - SMALES, I

    AU - QUIN, B

    AU - MENKHORST, P

    AU - Franklin, Donald

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    N2 - Understanding the demography of threatened taxa is essential for formulating effective management strategies for their conservation and for making predictions about their long-term prospects. With fewer than 25 breeding pairs in the current wild population, the Helmeted Honeyeater (Lichenostomus melanops cassidix) is one of the most threatened birds in Australia. Demography of the sole wild population of the Helmeted Honeyeater was investigated by monitoring 526 nests between 1984 and 1996 and 324 colour-banded birds between 1984 and 2008. Throughout the study, the population was effectively closed, there being no evidence of immigration or emigration. Mean survivorship of nests from laying to fledging was 0.17, and mean survivorship of juveniles (from 40 days to 1 year of age) was 0.63. Weighted mean annual survivorship of adult females and males was 0.75 and 0.81 respectively. The population showed little between-year variation in annual productivity and survivorship, with sufficient recruitment for positive population growth. In general, the population dynamics of the Helmeted Honeyeater fit the pattern of an 'old endemic' Australian passerine, with low survival of eggs and chicks, extended parental care of juveniles and high survivorship of juveniles and adults. Eggs and chicks that would not naturally survive are a resource that may be used to assist recovery of the population. � 2009 Royal Australasian Ornithologists Union.

    AB - Understanding the demography of threatened taxa is essential for formulating effective management strategies for their conservation and for making predictions about their long-term prospects. With fewer than 25 breeding pairs in the current wild population, the Helmeted Honeyeater (Lichenostomus melanops cassidix) is one of the most threatened birds in Australia. Demography of the sole wild population of the Helmeted Honeyeater was investigated by monitoring 526 nests between 1984 and 1996 and 324 colour-banded birds between 1984 and 2008. Throughout the study, the population was effectively closed, there being no evidence of immigration or emigration. Mean survivorship of nests from laying to fledging was 0.17, and mean survivorship of juveniles (from 40 days to 1 year of age) was 0.63. Weighted mean annual survivorship of adult females and males was 0.75 and 0.81 respectively. The population showed little between-year variation in annual productivity and survivorship, with sufficient recruitment for positive population growth. In general, the population dynamics of the Helmeted Honeyeater fit the pattern of an 'old endemic' Australian passerine, with low survival of eggs and chicks, extended parental care of juveniles and high survivorship of juveniles and adults. Eggs and chicks that would not naturally survive are a resource that may be used to assist recovery of the population. � 2009 Royal Australasian Ornithologists Union.

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    KW - species conservation

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    KW - wild population

    KW - Aves

    KW - Lichenostomus melanops cassidix

    KW - Meliphagidae

    KW - Passeriformes

    M3 - Article

    VL - 109

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    JO - Emu

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    ER -

    SMALES I, QUIN B, MENKHORST P, Franklin D. Demography of the Helmeted Honeyeater (Lichenostomus melanops cassidix). Emu. 2009;109(4):352-359.