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Article
Julia Delingat, Auteur ; Volker Dierschke, Auteur ; Heiko Schmaljohann, Auteur ; Bettina Mendel, Auteur ; Franz Bairlein, AuteurDans Ardea (94(3) 2006)Selection for early arrival is expected to shape optimal stopover decisions in migrating birds to minimise time spent on migration. Optimality models predict that fuel loads at departure from stopover sites and stopover duration should depend st[...]
Article
Julia Delingat, Auteur ; Volker Dierschke, Auteur ; Heiko Schmaljohann, Auteur ; Franz Bairlein, AuteurIn migrating birds body mass change during stopover is often used to evaluate the quality of a stopover site. Because such body mass changes are difficult to survey in migrating birds various methods were developed to allow the analysis of large[...]
Article
Julia Delingat, Auteur ; Volker Dierschke, AuteurDuring migratory stopovers on the small offshore island Helgoland (North Sea), Northern Wheatears equally used grassland and beach habitats in spring. An increasing proportion of wheatears present in beach habitats during autumn migration can be[...]
Article
Julia Delingat, Auteur ; Keith A. Hobson, Auteur ; Volker Dierschke, Auteur ; Heiko Schmaljohann, Auteur ; Franz Bairlein, AuteurLinking events of breeding, wintering and stopover areas has important ecological and conservation implications for migratory species. To find a tool to connect these different events in a long-distance migrating songbird, the Northern Wheatear [...]
