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Article
M. R. Petersen, Auteur ; J. O. Bustnes, Auteur ; G. H. Systad, AuteurThis study was designed to determine the spring, summer, autumn, and early winter distribution, migration routes, and timing of migration of the Atlantic population of Steller's eiders Polysticta stelleri. Satellite transmitters were implanted i[...]
Article
K. O. Kristiansen, Auteur ; J. O. Bustnes, Auteur ; I. Folstad, Auteur ; M. Helberg, AuteurCarotenoids are a large group of biochemicals, with similar properties, synthesised by bacteria, fungi, algae and plants. Vertebrates obtain these biologically active pigments through the diet, and they are a disproportionately common component [...]
Article
Article
J. O. Bustnes, Auteur ; G. H. Systad, AuteurDans Ardea (89(2) 2001)Habitat use of Steller's Elders Polysticta stelleri was studied in Varangerfjord, northern Norway, during three winter periods (November, January and April) in 1996/97. We partitioned habitats based on water depth and benthic conditions, and com[...]
Article
K. E. Erikstad, Auteur ; T. Tveraa, Auteur ; J. O. Bustnes, AuteurIn ducks and geese intraclutch egg-size variation shows a consistent pattern. The first egg is generally smaller than the second egg and from then on egg size declines over the laying sequence. Such an intraclutch egg-size pattern has previously[...]
