Blar i forfatter "Tulp, Ingrid"

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    • Heavy decline of the largest European Arctic Skua Stercorarius parasiticus colony: interacting effects of food shortage and predation 

      van Bemmelen, Rob; Schekkermann, Hans; Hin, Vincent; Pot, Morrison; Janssen, Kirstin; Ganther, Barbara; Rösner, Hans-Ulrich; Tulp, Ingrid (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-09-24)
      Capsule: The number of breeding pairs of Europe’s largest Arctic Skua Stercorarius parasiticus colony at Slettnes, Norway, showed a dramatic decline of at least 50% over two decades, with food shortage in four years and increasing predation by Red Fox Vulpes vulpes leading to total breeding failure in five out of six recent study years.<p> Aims: To document the decline of Europe’s largest Arctic ...

    • Synchronous timing of return to breedingsites in a long-distance migratory seabirdwith ocean-scale variation in migrationschedules 

      van Bemmelen, Rob S.A.; Moe, Børge; Schekkerman, Hans; Hanssen, Sveinn Are; Snell, Katherine R. S.; Humphreys, Elizabeth M.; Mäntylä, Elina; Hallgrimsson, Gunnar Thor; Gilg, Olivier; Ehrich, Dorothee; Calladine, John; Hammer, Sjúrður; Harris, Sarah; Lang, Johannes; Vignisson, Sölvi Rúnar; Kolbeinsson, Yann; Nuotio, Kimmo; Sillanpää, Matti; Sittler, Benoit; Sokolov, Aleksandr; Klaassen, Raymond H. G.; Phillips, Richard A.; Tulp, Ingrid (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-03-22)
      Background Migratory birds generally have tightly scheduled annual cycles, in which delays can have carry-over effects on the timing of later events, ultimately impacting reproductive output. Whether temporal carry-over effects are more pronounced among migrations over larger distances, with tighter schedules, is a largely unexplored question. <p><p>Methods We tracked individual Arctic Skuas ...