Marks of unfamiliar odours were placed on the stereotyped paths of two captive polar bears in order to test their attentiveness to novel stimuli during stereotyped walking. Both individuals significantly increased their rate of sniffing compared with stereotyped walking bouts without odour marks on the stereotyped paths. In addition, the polar bears regularly interrupted their stereotyped walking bouts to look up. The results show that elements of appetitive behaviour (sniffing, looking up) are compatible with the motivational state of a stereotyping animal. They support the hypothesis that stereotypies develop from appetitive behaviour that becomes more and more formalised.
|Publication Title||Applied Animal Behaviour Science|
|Author Address||Nutztierethologie, Zoologisches Institut, Universitat Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland.|
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