Melanism is related to behavioural lateralization in nestling barn owls.

Détails

ID Serval
serval:BIB_277AFABF8D31
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Melanism is related to behavioural lateralization in nestling barn owls.
Périodique
Behavioural Processes
Auteur(s)
Gaillard M., Scriba M.F., Roulin A.
ISSN
1872-8308 (Electronic)
ISSN-L
0376-6357
Statut éditorial
Publié
Date de publication
2017
Peer-reviewed
Oui
Volume
140
Pages
139-143
Langue
anglais
Résumé
Behavioural laterality is a commonly observed phenomenon in many species suggesting there might be an advantage of using dominantly one side over the other for certain tasks. Indeed, lateralized individuals were often shown to be more successful in cognitive tasks compared to non-lateralized conspecifics. However, stressed individuals are also often, but not always, more strongly lateralized. Because barn owl (Tyto alba) females displaying larger black spots on the tip of their ventral feathers produce offspring that are more resistant to a variety of environmental stressful factors, we examined whether laterality is associated with melanin-based coloration. We recorded whether nestlings use more often the right or left foot to scratch their body and whether they preen more often one side of the body or the other using their bills. We found that the strength of lateralization of preening and scratching was less pronounced in individuals born from heavily spotted mothers. This result might be explained by plumage-related variation in the ability to resist stressful rearing conditions.

Mots-clé
Bird, Colouration, Development, Personality, Preening, Scratching
Pubmed
Web of science
Création de la notice
16/05/2017 17:29
Dernière modification de la notice
20/08/2019 14:06
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