Document Detail

Intra- and inter-individual variations in flight direction in a migratory butterfly co-vary with individual mobility.
MedLine Citation:
PMID:  23661774     Owner:  NLM     Status:  Publisher    
Flight direction is a major component of animal's migratory success. However, few studies focused on variation in flight direction both between and within individuals, which is likely to be correlated with other traits implied in migration processes. We report patterns of intra- and inter-individual variation in flight direction in the large white butterfly Pieris brassicae (Linnaeus, 1758). The presence of inter-individual variation in flight direction for individuals tested in the same conditions suggests that this trait is inherited in P. brassicae and we propose that a rapid loss of migratory skills may exist in the absence of selection for migration. The magnitude of intra-individual variation was negatively correlated to two surrogates of the potential for migration: mobility and wing length. Highly mobile and longed-winged individuals within the same family were found to fly in similar directions, whereas less mobile and short-winged individuals displayed divergent flight direction compared to the average direction of their kin. There was also a negative correlation between the variance to the mean flight direction of a family and its average mobility, but no correlation with wing length. We discuss these issues in terms of evolution of traits potentially implied both in migration and dispersal in P. brassicae.
Nicolas Larranaga; Michel Baguette; Olivier Calvez; Audrey Trochet; Simon Ducatez; Delphine Legrand
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-5-9
Journal Detail:
Title:  The Journal of experimental biology     Volume:  -     ISSN:  1477-9145     ISO Abbreviation:  J. Exp. Biol.     Publication Date:  2013 May 
Date Detail:
Created Date:  2013-5-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0243705     Medline TA:  J Exp Biol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Hólar University College;
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