Veterinärmedizinische Universität Wien Forschungsinformationssystem VetDoc

Grafischer Link zur Startseite der Vetmeduni Vienna

Gewählte Publikation:

Publikationstyp: Zeitschriftenaufsatz
Dokumenttyp: Originalarbeit

Jahr: 2006

AutorInnen: Gajdon, GK; Fijn, N; Huber, L

Titel: Limited spread of innovation in a wild parrot, the kea (Nestor notabilis).

Quelle: Anim Cogn. 2006; 9(3):173-181



Autor/innen der Vetmeduni Vienna:

Gajdon Gyula
Huber Ludwig

Diese Publikation wurde nicht im Namen der Vetmeduni Vienna erstellt und ist deshalb ausschließlich der persönlichen Publikationsliste des/der Autors/Autorin zugeordnet!


Abstract:
In the local population of kea in Mount Cook Village, New Zealand, some keas open the lids of rubbish bins with their bill to obtain food scraps within. We investigated the extent to which this innovation has spread in the local population, and what factors limit the acquisition of bin opening. Only five males of 36 individually recognised birds were observed to have performed successful bin opening. With one exception there were always other keas present, watching successful bin opening. Seventeen additional individuals were seen to have benefitted from lid opening. Their foraging success was less than that of the bin openers. Social status of bin openers did not differ from scrounging males. Among the individuals that were regularly seen at the site of the bins but were not successful in bin opening, social status and the ratio of feeding directly from open bins correlated with the amount of opening attempts. We conclude that scrounging facilitated certain behavioural aspects of bin opening rather than inhibiting them. The fact that only 9% of opening attempts were successful, and the long period of time required to increase efficiency in lid opening shows that mainly individual experience, and to a lesser extent insight and social learning, play key roles in acquisition of the opening technique. The results indicate that the spread of innovative solutions of challenging mechanical problems in animals may be restricted to only a few individuals.

Keywords Pubmed: Animal Communication
Animals
Diffusion of Innovation
Feeding Behavior
Female
Imitative Behavior*
Learning*
Male
Motor Skills*
Parrots*
Problem Solving*
Sex Factors
Social Dominance
Social Environment
Statistics, Nonparametric


© Veterinärmedizinische Universität Wien Hilfe und DownloadsErklärung zur Barrierefreiheit