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Article
Cecilia Kullberg, Auteur ; Thord Fransson, Auteur ; Johanna Hedlund, Auteur ; Niclas Jonzén, Auteur ; Ola Langvall, Auteur ; Johan Nilsson, Auteur ; Kjell Bolmgren, AuteurDans AMBIO (44 JAN 2015)Many migratory bird species have advanced their spring arrival during the latest decades, most probably due to climate change. However, studies on migratory phenology in the period before recent global warming are scarce. We have analyzed a hist[...]
Article
Thord Fransson, Auteur ; Mans Karlsson, Auteur ; Cecilia Kullberg, Auteur ; Robert Stach, Auteur ; Christos Barboutis, AuteurMigratory birds wintering in Africa face the challenge of passing the Sahara desert with few opportunities to forage. During spring migration birds thus arrive in the Mediterranean area with very low energy reserves after crossing the desert. Si[...]
Article
Johanna S. U. Hedlund, Auteur ; Sven Jakobsson, Auteur ; Cecilia Kullberg, Auteur ; Thord Fransson, AuteurClimate change can influence many aspects of avian phenology and especially migratory shifts and changes in breeding onset receive much research interest in this context. However, changes in these different life-cycle events in birds are often i[...]
Article
Thord Fransson, Auteur ; Sven Jakobsson, Auteur ; Cecilia Kullberg, Auteur ; Johan Lind, Auteur ; Adrian Vallin, Auteur
Article
Robert Stach, Auteur ; Thord Fransson, Auteur ; Sven Jakobsson, Auteur ; Cecilia Kullberg, AuteurMigratory birds use stopovers to replenish their fuel reserves and they generally spend more time at stopover sites than they do in actual flight. When arriving at a new stopover site birds may need to search extensively to find a suitable feedi[...]
