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Article
H. M. Salomons, Auteur ; W. Müller, Auteur ; C. Dijkstra, Auteur ; C. M. Eising, Auteur ; S. Verhulst, AuteurOffspring survival probability usually decreases with hatching order, especially in species with brood reduction. Brood reduction in combination with a sex difference in embryonic period (the time between laying and hatching of an egg) can poten[...]
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
N. Verboven, Auteur ; J. M. Tinbergen, Auteur ; S. Verhulst, AuteurDans Ardea (89(2) 2001)We studied the reproductive success of facultatively double brooded Great Tits Parus major in relation to (seasonal) variation in abundance of their main food supply: caterpillars in Oak Quercus robur. Data were collected in two mixed woods (Vli[...]
Article
M. Van de Pol, Auteur ; T. Bakker, Auteur ; D. J. Saaltink, Auteur ; S. Verhulst, AuteurVariation in rearing conditions, due either to parental or to environmental quality, can result in offspring of different quality (e.g. body condition, immune function). However, evidence is accumulating that egg size and composition can also af[...]
Article
S. Verhulst, Auteur ; M. Salomons, Auteur ; E. Mulder, Auteur ; L. van de Zande, Auteur
