- vom 14.7.2021
Zur Siedlungsdichte von Rotmilan (Milvus milvus) und Mäusebussard (Buteo buteo) bei Hildesheim
In: Die Vogelwelt, Jg. 90, S. 98-108
Time budget in Galápagos fur seal pups: the influence of the mother's presence and absence on pup activity and play
In: Behaviour, Jg. 92, S. 302-321The mating systems of pinnipeds and marine iguanas: convergent evolution of polygyny
In: Biological Journal of the Linnean Society, Jg. 21, S. 209-216The influence of separation on the pair bond in budgerigars (Melopsittacus undulatus; Aves, Psittacidae
In: Zeitschrift für Tierpsychologie, Jg. 41, S. 396-408The complete primary structure of the marine carnivora, galapagoes fur seal (Arctocephalus galapagoensis, Otariidae) hemoglobins
In: Journal of Protein Chemistry, Jg. 10 H. 3, S. 257-263The breeding season of the flightless cormorant Nannopterum harrisi at Cabo Hammond, Fernandina
In: The Ibis, Jg. 125 H. 2, S. 221-223The behavioral ecology of maternal effort in fur seals and sea lions
In: Behaviour, Jg. 114 H. 1, S. 3-20Temperature regulation and microhabitat choice by free-ranging Galapagos fur seal pups (Arctocephalus galapagoensis)
In: Oecologia, Jg. 69 H. 1, S. 53-59Swimming velocities in otariids
In: Canadian journal of zoology, Jg. 68 H. 10Spatial proximity and mate-specific behaviour in a flock of budgerigars (Melopsittacus undulatus; Aves, Psittacidae)
In: Zeitschrift für Tierpsychologie, Jg. 41, S. 307-331Recognition of the individual nesting box in budgerigars
In: Zeitschrift für Tierpsychologie, Jg. 42, S. 1-11Paarzusammenhalt beim Mäusebussard (Buteo buteo L.) im Winter
In: Die Vogelwelt, Jg. 86, S. 60-61Ontogenetic changes in food intake and digestion rate of the herbivorous marine iguana (Amblyrhynchus cristatus, Bell)
In: Oecologia, Jg. 94 H. 3, S. 373-379Mutual mother-pup recognition in Galápagos fur seals and sea lions: cues used and functional significance
In: Behaviour, Jg. 78 H. 1, S. 21-42Milk of the Galápagos fur seal and sea lion, with a comparison of the milk of eared selas (Otariidae)
In: Journal of zoology, Jg. 209, S. 271-277Maternal investment and sex-allocation in the Galapagos fur seal, Arctocephalus galapagoensis
In: Behavioral Ecology and Sociobiology, Jg. 19 H. 3, S. 157-164