ATTEMPTED EXPERIMENTAL TRANSMISSION OF PSEUDORABIES VIRUS TO EUROPEAN STARLINGS (Sturnus vulgaris)
نویسندگان
چکیده
منابع مشابه
Embryonic modulation of maternal steroids in European starlings (Sturnus vulgaris).
In birds, maternally derived yolk steroids are a proposed mechanism by which females can adjust individual offspring phenotype to prevailing conditions. However, when interests of mother and offspring differ, parent-offspring conflict will arise and embryonic interests, not those of the mother, should drive offspring response to maternal steroids in eggs. Because of this potential conflict, we ...
متن کاملShape from shading in starlings (Sturnus vulgaris).
Birds behave as if they quickly and accurately perceive an object-filled visual world. Beyond the extensive research with pigeons, however, there is a large and important gap in our knowledge about the mechanisms of object perception and recognition in other avian visual systems. The pattern of shading reflected from the surfaces of objects is one important optical feature that provides fundame...
متن کاملHand-Rearing Reduces Fear of Humans in European Starlings, Sturnus vulgaris
Pending changes in European legislation ban the use of wild-caught animals in research. This change is partly justified on the assumption that captive-breeding (or hand-rearing) increases welfare of captive animals because these practices result in animals with reduced fear of humans. However, there are few actual data on the long-term behavioural effects of captive-breeding in non-domestic spe...
متن کاملThe perception of Glass patterns by starlings (Sturnus vulgaris).
Glass patterns are structured dot stimuli used to investigate the visual perception of global form. Studies have demonstrated that humans and pigeons differ in their processing of circular versus linearly organized Glass patterns. To test whether this comparative difference is characteristic of birds as a phylogenetic class, we investigated for the first time how a passerine (starlings, Sturnus...
متن کاملRepeatability of Clutch Size in Female Starlings (sturnus Vulgaris)
Theories of clutch size determination have focused on first broods or on seasonal trends in clutch size. Clutch size is controlled by combination of genetic, ontological and environmental factors (KENNEDY & WHITE, 1991). In recent years, an increasing number of studies have demonstrated the existence of significant repeatability in ecologically important traits in natural bird populations (e.g....
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ژورنال
عنوان ژورنال: Journal of Wildlife Diseases
سال: 1978
ISSN: 0090-3558
DOI: 10.7589/0090-3558-14.2.170