Undersøgelse af vandrefalkebestanden i Sydgrønland

Feltrapport 2002

Søren Møller, Knud Falk

    Publikation: Working paperForskning

    Resumé

    This report presents results from the 21th field season of the project "Investigations of the Peregrine Falcon population in South Greenland". Since 1985, the effort has been concentrated on acquiring data on breeding female turnover by banding and annual recaptures at the breeding sites. Overall, we have made 137 reidentifications of 56 individual breeding females. Raw data suggest an annual average turnover of 31% (range 0-63%) among breeding females. This estimate may be too high due to the possibility of individual females moving out of the survey area. When corrected for possible movements the turnover remains high at 30%. In addition, data on breeding success and band recoveries are presented: on average (1981-2002) the falcons produced 2.8 young per successful pair (2.5 in 2002), and 1.7 young per occupied territory (2.0 in 2002). Both adult female turnover and breeding success are among the highest known for Peregrine Falcons.

    OriginalsprogDansk
    Sider1-10
    Antal sider10
    StatusUdgivet - 2002

    Emneord

    • Vandrefalk
    • Grønland

    Citer dette

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    author = "S{\o}ren M{\o}ller and Knud Falk",
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    Undersøgelse af vandrefalkebestanden i Sydgrønland : Feltrapport 2002. / Møller, Søren; Falk, Knud.

    2002. s. 1-10.

    Publikation: Working paperForskning

    TY - UNPB

    T1 - Undersøgelse af vandrefalkebestanden i Sydgrønland

    T2 - Feltrapport 2002

    AU - Møller, Søren

    AU - Falk, Knud

    PY - 2002

    Y1 - 2002

    N2 - This report presents results from the 21th field season of the project "Investigations of the Peregrine Falcon population in South Greenland". Since 1985, the effort has been concentrated on acquiring data on breeding female turnover by banding and annual recaptures at the breeding sites. Overall, we have made 137 reidentifications of 56 individual breeding females. Raw data suggest an annual average turnover of 31% (range 0-63%) among breeding females. This estimate may be too high due to the possibility of individual females moving out of the survey area. When corrected for possible movements the turnover remains high at 30%. In addition, data on breeding success and band recoveries are presented: on average (1981-2002) the falcons produced 2.8 young per successful pair (2.5 in 2002), and 1.7 young per occupied territory (2.0 in 2002). Both adult female turnover and breeding success are among the highest known for Peregrine Falcons.

    AB - This report presents results from the 21th field season of the project "Investigations of the Peregrine Falcon population in South Greenland". Since 1985, the effort has been concentrated on acquiring data on breeding female turnover by banding and annual recaptures at the breeding sites. Overall, we have made 137 reidentifications of 56 individual breeding females. Raw data suggest an annual average turnover of 31% (range 0-63%) among breeding females. This estimate may be too high due to the possibility of individual females moving out of the survey area. When corrected for possible movements the turnover remains high at 30%. In addition, data on breeding success and band recoveries are presented: on average (1981-2002) the falcons produced 2.8 young per successful pair (2.5 in 2002), and 1.7 young per occupied territory (2.0 in 2002). Both adult female turnover and breeding success are among the highest known for Peregrine Falcons.

    KW - Vandrefalk

    KW - Grønland

    KW - Peregrine falcon

    KW - Greenland

    M3 - Working paper

    SP - 1

    EP - 10

    BT - Undersøgelse af vandrefalkebestanden i Sydgrønland

    ER -