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Article
Cas Eikenaar, Auteur ; Florian Packmor, Auteur ; Heiko Schmaljohann, Auteur ; Arne Hegemann, AuteurStopover periods in between migratory flights determine the speed of migration and as such may affect birds’ fitness. The decision to leave a stopover site is affected by, for example, energy stores and weather conditions. We investigated whethe[...]
Article
Heiko Schmaljohann, Auteur ; Florian Müller, Auteur ; Thomas Klinner, Auteur ; Cas Eikenaar, AuteurIn migratory songbirds, older individuals are thought to be more efficient migrants than younger individuals. Age-specific differences in migratory efficiency have been reported mainly in respect of arrival timing, energy stores, rate of energy [...]
Article
Cas Eikenaar, Auteur ; Heiko Schmaljohann, AuteurA variety of methods have been used to study the relationship between wind conditions and departure decisions of migrant birds at stopover sites. These methods are either costly or suffer from inaccuracy in determining whether or not an individu[...]
Article
Cas Eikenaar, Auteur ; Heiko Schmaljohann, AuteurA variety of methods have been used to study the relationship between wind conditions and departure decisions of migrant birds at stopover sites. These methods are either costly or suffer from inaccuracy in determining whether or not an individu[...]
Article
Cas Eikenaar, Auteur ; Arseny Tsvey, Auteur ; Heiko Schmaljohann, AuteurA widespread phenomenon in migrant birds is that they travel faster in spring than in autumn. During migration birds spend most time at stopover sites and, correspondingly, the faster spring migration is mainly explained by shorter stopovers in [...]
Article
Cas Eikenaar, Auteur ; Franz Bairlein, AuteurMigrating birds spend most of their time at stopover sites where they replenish the fuel used during flight, termed refueling. The overall time of migration thus largely depends on the duration of stopovers, and factors shaping stopover duration[...]
Article
Cas Eikenaar, Auteur ; Frances Bonier, Auteur ; Paul R. Martin, Auteur ; Ignacio T. Moore, AuteurThe latitudinal increase in extra-pair paternity (EPP) rates in birds suggests broad selective benefits to low EPP rates in the tropics. However, we have few EPP data from tropical birds, particularly from species with close relatives at high la[...]
Article
Cas Eikenaar, Auteur ; David S. Richardson, Auteur ; Lyanne Brouwer, Auteur ; Jan Komdeur, AuteurThe distances that individuals disperse, from their natal site to the site of first breeding and between breeding sites, have important consequences for the dynamics and genetic structure of a population. Nearly all previous studies on dispersal[...]
