HABITAT SELECTION AND FORAGING BEHAVIOR OF BREEDING CHOUGHS PYRRHOCORAX-PYRRHOCORAX L IN COUNTY DONEGAL

A Robertson, AM Jarvis, KR Day

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    The chough Pyrrhocorax pyrrhocorax L. is largely restricted to areas of low-input agricultural land in the UK and Ireland. In parts of their range their numbers have declined dramatically in recent years following changes in land use. In this study, the relative importance of eight major habitat types to the foraging requirements of five breeding pairs of choughs in County Donegal was investigated. For each pair the area within a defined home range was classified according to habitat type, and both habitat use and foraging behaviour were monitored. Invertebrate samples were also collected. Most pairs preferentially foraged in machair and maritime turf and avoided heather and improved pasture. Rough grass was also important, although to a lesser degree. Birds spent longer actively feeding in machair where a greater range of invertebrates were available. Our results are supportive of those obtained in previous studies and emphasise the importance of machair as a primary foraging habitat.
    LanguageEnglish
    Pages69-74
    JournalBIOLOGY AND ENVIRONMENT-PROCEEDINGS OF THE ROYAL IRISH ACADEMY
    Volume95B
    Issue number1
    Publication statusPublished - Jun 1995

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    habitat preferences
    foraging
    breeding
    habitats
    invertebrates
    lawns and turf
    Ireland
    land use change
    agricultural land
    pastures
    grasses
    Pyrrhocorax pyrrhocorax
    birds
    sampling

    Cite this

    @article{b32fe0ca150a40f8bc79d4f8c0e33840,
    title = "HABITAT SELECTION AND FORAGING BEHAVIOR OF BREEDING CHOUGHS PYRRHOCORAX-PYRRHOCORAX L IN COUNTY DONEGAL",
    abstract = "The chough Pyrrhocorax pyrrhocorax L. is largely restricted to areas of low-input agricultural land in the UK and Ireland. In parts of their range their numbers have declined dramatically in recent years following changes in land use. In this study, the relative importance of eight major habitat types to the foraging requirements of five breeding pairs of choughs in County Donegal was investigated. For each pair the area within a defined home range was classified according to habitat type, and both habitat use and foraging behaviour were monitored. Invertebrate samples were also collected. Most pairs preferentially foraged in machair and maritime turf and avoided heather and improved pasture. Rough grass was also important, although to a lesser degree. Birds spent longer actively feeding in machair where a greater range of invertebrates were available. Our results are supportive of those obtained in previous studies and emphasise the importance of machair as a primary foraging habitat.",
    author = "A Robertson and AM Jarvis and KR Day",
    year = "1995",
    month = "6",
    language = "English",
    volume = "95B",
    pages = "69--74",
    journal = "Biology and Environment",
    issn = "0791-7945",
    number = "1",

    }

    HABITAT SELECTION AND FORAGING BEHAVIOR OF BREEDING CHOUGHS PYRRHOCORAX-PYRRHOCORAX L IN COUNTY DONEGAL. / Robertson, A; Jarvis, AM; Day, KR.

    In: BIOLOGY AND ENVIRONMENT-PROCEEDINGS OF THE ROYAL IRISH ACADEMY, Vol. 95B, No. 1, 06.1995, p. 69-74.

    Research output: Contribution to journalArticle

    TY - JOUR

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    AU - Day, KR

    PY - 1995/6

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    N2 - The chough Pyrrhocorax pyrrhocorax L. is largely restricted to areas of low-input agricultural land in the UK and Ireland. In parts of their range their numbers have declined dramatically in recent years following changes in land use. In this study, the relative importance of eight major habitat types to the foraging requirements of five breeding pairs of choughs in County Donegal was investigated. For each pair the area within a defined home range was classified according to habitat type, and both habitat use and foraging behaviour were monitored. Invertebrate samples were also collected. Most pairs preferentially foraged in machair and maritime turf and avoided heather and improved pasture. Rough grass was also important, although to a lesser degree. Birds spent longer actively feeding in machair where a greater range of invertebrates were available. Our results are supportive of those obtained in previous studies and emphasise the importance of machair as a primary foraging habitat.

    AB - The chough Pyrrhocorax pyrrhocorax L. is largely restricted to areas of low-input agricultural land in the UK and Ireland. In parts of their range their numbers have declined dramatically in recent years following changes in land use. In this study, the relative importance of eight major habitat types to the foraging requirements of five breeding pairs of choughs in County Donegal was investigated. For each pair the area within a defined home range was classified according to habitat type, and both habitat use and foraging behaviour were monitored. Invertebrate samples were also collected. Most pairs preferentially foraged in machair and maritime turf and avoided heather and improved pasture. Rough grass was also important, although to a lesser degree. Birds spent longer actively feeding in machair where a greater range of invertebrates were available. Our results are supportive of those obtained in previous studies and emphasise the importance of machair as a primary foraging habitat.

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