Document Detail


Natal dispersal and parental escorting predict relatedness between mates in a passerine bird.
MedLine Citation:
PMID:  16842426     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Although relatedness between mates is of considerable evolutionary and ecological significance, the way in which the level of relatedness is determined by different behavioural processes remains largely unknown. We investigated the role of behaviour in predicting mate relatedness in great tits using genotypic markers and detailed observations. We studied how mate relatedness is influenced by natal dispersal, inbreeding/outbreeding avoidance after natal dispersal and a behaviour not previously considered that influences membership to social aggregations, namely family escorting behaviour by parents. Among locally born individuals, the level of mate relatedness decreased with natal dispersal distance for females, but not for males. In contrast, mate relatedness was negatively related to the extent of family movements for males, but not for females. However, family movements did not predict dispersal distance for either sex. Local recruits were more related to their mates than immigrants, but this was only significant for females. No evidence was found for inbreeding/outbreeding avoidance after dispersal. Our results suggest that, in highly mobile species, mating options are spatially and/or socially limited, and that parents influence mating options of their offspring before dispersal.
Authors:
T van de Casteele; E Matthysen
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Molecular ecology     Volume:  15     ISSN:  0962-1083     ISO Abbreviation:  Mol. Ecol.     Publication Date:  2006 Aug 
Date Detail:
Created Date:  2006-07-17     Completed Date:  2006-09-06     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9214478     Medline TA:  Mol Ecol     Country:  England    
Other Details:
Languages:  eng     Pagination:  2557-65     Citation Subset:  IM    
Affiliation:
Laboratory of Animal Ecology, Department of Biology, University of Antwerp, Universiteitsplein 1, B-2610 Antwerp, Belgium.
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MeSH Terms
Descriptor/Qualifier:
Animal Migration
Animals
Behavior, Animal / physiology*
Female
Male
Microsatellite Repeats
Passeriformes / genetics*,  physiology*
Pedigree
Sexual Behavior, Animal / physiology*
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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