Dohlen erlernen unbenannte Anzahlen

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Formal Metadata

Dohlen erlernen unbenannte Anzahlen
Alternative Title
Jackdaws Trained to Recognize Undenominated Numbers
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IWF Signature
B 467
Release Date
Silent film
Kurt Schiemann (Königsberg)
Universität Königsberg, Zoologisches Institut (Königsberg)
Production Year

Technical Metadata

IWF Technical Data
Film, 16 mm, 120 m ; SW, 14 1/2 min

Content Metadata

Subject Area
Versuche mit dressierten Dohlen zu ihrer Fähigkeit, Anzahlen zu erfassen: Wahl einer Anzahl Körner auf farbliche Reize hin, Wahl der der Dressur entsprechenden Anzahl, Vergleich bestimmter Anzahlen und Öffnen der entsprechenden Schälchen (Größe und Muster der Punkte verschieden); Scheuchversuche. Aufgenommen mit 20 B/s; Vorführgeschw. 18 B/s.
Experiments with conditioned jackdaws on their ability to recognize certain numbers: choice of a number of grains following colour stimuli, comparison between different numbers and opening of the appropriate bowls. Chasing experiments. Recording speed 20 fps, projection speed 18 fps.
Keywords Dohle Coloeus monedula Konditionierung Dressur / Aves Lernen / Aves experimentelle Verhaltensforschung / Aves learning / Aves experimental behaviour research / Aves training / Aves conditioning Coloeus monedula jackdaw
IWF Classification Biologie Passeriformes - Sperlingsvögel Aves - Vögel Vertebrata - Wirbeltiere Ethologie, Morphologie Zoologie zoology ethology, morphology vertebrata - vertebrates aves - birds passeriformes - passerine birds biology