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Auteur P. Wiersma |
Documents disponibles écrits par cet auteur (4)
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Article
S. Verhulst, Auteur ; B. Riedstra, Auteur ; P. Wiersma, AuteurBirds rearing experimentally enlarged broods have lower antibody responses to a novel antigen, and we tested three hypotheses that could explain this result. We used zebra finches Taeniopygia guttata inoculated with sheep red blood cells (SRBC) [...]![]()
Article
R. W. Summers, Auteur ; T. Piersma, Auteur ; K. B. Strann, Auteur ; P. Wiersma, AuteurDans Ardea (86(1) 1998)Winter north of the Arctic circle in northern Norway is colder, windier and there is less solar radiation than in eastern Scotland, at a latitude 13 degrees further south. We predicted from equations derived from heated taxidermic mounts that th[...]![]()
Article
M. Kersten, Auteur ; L. W. Bruinzeel, Auteur ; P. Wiersma, Auteur ; T. Piersma, AuteurDans Ardea (86(1) 1998)We measured Basal Metabolic Rate (EMR) of 16 wader species (order Charadriiformes) on their wintering grounds in Africa. The allometric regression equation relating BMR to body mass: BMR (W) = 4.02 x M (kg)(0.724) runs parallel to that of waders[...]



