Experimental evidence that adult antipredator behaviour is heritable and not influenced by behavioural copying in a wild bird.

Détails

ID Serval
serval:BIB_64384C5A32B3
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Experimental evidence that adult antipredator behaviour is heritable and not influenced by behavioural copying in a wild bird.
Périodique
Proceedings of the Royal Society B Biological Sciences
Auteur(s)
Bize P., Diaz C., Lindström J.
ISSN
1471-2954 (Electronic)
ISSN-L
0962-8452
Statut éditorial
Publié
Date de publication
2012
Peer-reviewed
Oui
Volume
279
Numéro
1732
Pages
1380-1388
Langue
anglais
Résumé
Knowledge of the relative importance of genetics and behavioural copying is crucial to appraise the evolvability of behavioural consistencies. Yet, genetic and non-genetic factors are often deeply intertwined, and experiments are required to address this issue. We investigated the sources of variation of adult antipredator behaviour in the Alpine swift (Apus melba) by making use of long-term behavioural observations on parents and cross-fostered offspring. By applying an 'animal model' approach to observational data, we show that antipredator behaviour of adult Alpine swifts was significantly repeatable over lifetime (r = 0.273) and heritable (h(2) = 0.146). Regression models also show that antipredator behaviours differed between colonies and sexes (females were more tame), and varied with the hour and year of capture. By applying a parent-offspring regression approach to 59 offspring that were exchanged as eggs or hatchlings between pairs of nests, we demonstrate that offspring behaved like their biological parents rather than like their foster parents when they were adults themselves. Those findings provide strong evidence that antipredator behaviour of adult Alpine swifts is shaped by genetics and/or pre-hatching maternal effects taking place at conception but not by behavioural copying.
Mots-clé
Tachymarptis melba, behavioural syndromes, cross-fostering experiment, personality, antipredator behaviour
Pubmed
Web of science
Open Access
Oui
Création de la notice
06/10/2011 22:44
Dernière modification de la notice
20/08/2019 14:20
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