Northern Wheatear (Oenanthe oenanthe) Science Article 1 abstract On the small North Sea island Helgoland (54 deg 11??N, 07 deg 55??E) we studied the stopover ecology of two subspecies of northern wheatear, Oenanthe oenanthe, during spring migration. Birds heading for Scandinavia (O. o. oenanthe) face only short flights across an ecological barrier (50-500 km) whereas […]

European Stonechat (Saxicola rubicola) Science Article 3 abstract In this study the relationship between the number of European Stonechats Saxicola rubicola at a winter site in Israel and the local rainfall, air temperature, and arthropod abundance was examined. In some years population size declined to about one third of the initial size, while in others […]

European Stonechat (Saxicola rubicola) Science Article 1 abstract Birds in seasonal environments must time stages in their annual life cycles precisely. While the fitness costs ofmistimed reproduction and migration are widely recognized, molt has been viewed as a more flexible element. Birds modify thetiming of molt in various ways to keep to overall timetables, but […]

European Stonechat (Saxicola rubicola) Science Article 2 abstract Long-distance migration is often associated with relatively short breeding seasons and a start of reproductive activities shortly after arrival. The full activation of the reproductive system from the regressed state takes, however, several weeks and must, therefore, be initiated in the winter quarters or during spring migration. […]

European Robin (Erithacus rubecula) Science Article 1 abstract Recent studies have shown that large fuelloads in small birds impair

European Robin (Erithacus rubecula) Science Article 5 abstract To investigate the relative importance of paternity defences in the European robin we used behaviouralobservations, simulated intrusions and temporary male removal experiments. Given that paired malesdid not increase their mate attendance, copulation rate or territory size during the female’s fertile period,the most frequently quoted paternity assurance strategies […]

European Robin (Erithacus rubecula) Science Article 4 abstract no abstract Tobias, J.A, Journal of Animal Ecology 66: 629-639 Download article download full text (pdf)

European Robin (Erithacus rubecula) Science Article 3 abstract Partially migratory behavior, the occurrence of resident and migratory individuals in a population, has been reported in free-living birds. I examined this behavior in the European Robin (Erithacus rubecula) under controlled experimental conditions. In an offspring group from a partially migratory field population, 36 (78%) individuals exhibited […]

European Robin (Erithacus rubecula) Science Article 2 abstract This paper studies how population density affects the dynamics of habitat occupation by Robins in a wintering area of southern Spain (Gibraltar area), and how the between-habitat distribution is influenced by the age and migratory behaviour of birds (whether they are year-round residents or wintering migrants). We […]

Common Redstart (Phoenicurus phoenicurus) Science Article 2 abstract The bird genus Phoenicurus comprises 10 to 11 species that occur from Europe through Asia. To resolve theirphylogenetic relationships, their phylogeography and the tempo of their evolution, the mitochondrial cytochrome-b gene wassequenced for 16 taxa. The Bayesian maximum likelihood tree and neighbor-joining dendrogram computed from the resultingdata […]