Negative phenotypic and genetic correlation between natal dispersal propensity and nest-defence behaviour in a wild bird.

Details

Serval ID
serval:BIB_7BD83D736869
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Negative phenotypic and genetic correlation between natal dispersal propensity and nest-defence behaviour in a wild bird.
Journal
Biology Letters
Author(s)
Bize P., Daniel G., Viblanc V.A., Martin JGA, Doligez B.
ISSN
1744-957X (Electronic)
ISSN-L
1744-9561
Publication state
Published
Issued date
2017
Peer-reviewed
Oui
Volume
13
Number
7
Pages
20170236.
Language
english
Abstract
Natural selection is expected to favour the integration of dispersal and phenotypic traits allowing individuals to reduce dispersal costs. Accordingly, associations have been found between dispersal and personality traits such as aggressiveness and exploration, which may facilitate settlement in a novel environment. However, the determinism of these associations has only rarely been explored. Here, we highlight the functional integration of individual personality in nest-defence behaviour and natal dispersal propensity in a long-lived colonial bird, the Alpine swift (Apus melba), providing insights into genetic constraints shaping the coevolution of these two traits. We report a negative association between natal dispersal and nest-defence (i.e. risk taking) behaviour at both the phenotypic and genetic level. This negative association may result from direct selection if risk-averseness benefits natal dispersers by reducing the costs of settlement in an unfamiliar environment, or from indirect selection if individuals with lower levels of nest defence also show lower levels of aggressiveness, reducing costs of settlement among unfamiliar neighbours in a colony. In both cases, these results highlight that risk taking is an important behavioural trait to consider in the study of dispersal evolution.

Keywords
Apus melba, behavioural syndrome, dispersal costs, heritability, personality trait, settlement
Pubmed
Web of science
Create date
15/08/2017 11:14
Last modification date
20/08/2019 14:37
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