Responses of urban crows to con- and hetero-specific alarm calls in predator and non-predator zoo enclosures.

Bc. Kateřina BÍLÁ

Rigorózní práce

Abstract:

I investigated if urban crows respond to con- and heterospecific alarm signals in predator and non-predator contexts in enclosures in the ZOO of Vienna. Crows responded strongly to the crow and also jackdaw alarms in both types of contexts, but also responded to the singing of great tit (control) in the predator context. This suggests that crows are aware of the danger the wolf and bear represent but are generally very cautious at the exotic Zoo animals.

Abstract:

I investigated if urban crows respond to con- and heterospecific alarm signals in predator and non-predator contexts in enclosures in the ZOO of Vienna. Crows responded strongly to the crow and also jackdaw alarms in both types of contexts, but also responded to the singing of great tit (control) in the predator context. This suggests that crows are aware of the danger the wolf and bear represent but are generally very cautious at the exotic Zoo animals.

Keywords

varovné hlasy, vrána obecná, heterospecifické signály, konspecifické signály, komunikace, intersecifické signály

Jazyk práce: angličtina

Datum vytvoření / odevzdání či podání práce: 15. 5. 2017

Obhajoba závěrečné práce

• Obhajoba proběhla 24. 5. 2017

JIHOČESKÁ UNIVERZITA V ČESKÝCH BUDĚJOVICÍCH

Přírodovědecká fakulta

Rigorózní řízení / obor:
Zoologie / Zoologie