Declines in breeding site fidelity in an increasing population of White Storks Ciconia ciconia

Authors

  • NAOMI ITONAGA,

    Corresponding author
    1. Unit of Eco-ethology, Institute of Biochemistry and Biology, University of Potsdam, Maulbeerallee 2a, D-14469 Potsdam, Germany
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  • ULRICH KÖPPEN,

    1. Landesamt für Umwelt, Naturschutz & Geologie Mecklenburg Vorpommern, Beringungszentrale Hiddensee, Badenstr. 18, D-18439 Stralsund, Germany
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  • MARTIN PLATH,

    1. Unit of Ecology & Evolution, Institute of Ecology, Evolution & Diversity, University of Frankfurt, Siesmayerstr. 70-72, D-60323 Frankfurt am Main, Germany
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  • DIETER WALLSCHLÄGER

    1. Unit of Eco-ethology, Institute of Biochemistry and Biology, University of Potsdam, Maulbeerallee 2a, D-14469 Potsdam, Germany
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Corresponding author.
Email: Naomi.Itonaga@googlemail.com

Abstract

Following a steep decline, White Stork Ciconia ciconia populations in Germany are currently increasing, allowing us to examine potential density-dependent effects on breeding dispersal. Our data suggest that the proportion of breeding dispersers has increased over time, indicating a density-dependent component in nest-site fidelity that may be linked to increased competition.

Ancillary