Evidence for an association between post-fledging dispersal and microsatellite multilocus heterozygosity in a large population of greater flamingos

PLoS One. 2013 Nov 22;8(11):e81118. doi: 10.1371/journal.pone.0081118. eCollection 2013.

Abstract

Dispersal can be divided into three stages: departure, transience and settlement. Despite the fact that theoretical studies have emphasized the importance of heterozygosity on dispersal strategies, empirical evidence of its effect on different stages of dispersal is lacking. Here, using multi-event capture-mark-recapture models, we show a negative association between microsatellite multilocus heterozygosity (MLH; 10 loci; n = 1023) and post-fledging dispersal propensity for greater flamingos, Phoenicopterus roseus, born in southern France. We propose that the negative effects of inbreeding depression affects competitive ability and therefore more homozygous individuals are more likely to disperse because they are less able to compete within the highly saturated natal site. Finally, a model with the effect of MLH on propensity of post-fledgling dispersers to disperse to the long-distance sites of Africa was equivalent to the null model, suggesting that MLH had low to no effect on dispersal distance. Variations in individual genetic quality thus result in context-dependent heterogeneity in dispersal strategies at each stage of dispersal. Our results have important implications on fitness since sites visited early in life are known to influence site selection later on in life and future survival.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Algorithms
  • Animal Migration*
  • Animals
  • Birds / genetics*
  • Female
  • France
  • Genetic Loci*
  • Geography
  • Heterozygote*
  • Male
  • Microsatellite Repeats*
  • Models, Theoretical
  • Population Dynamics
  • Seasons

Grants and funding

This study was funded by the TOTAL foundation, the Conseil Régional de Bourgogne, the MAVA foundation, and the Centre National de la Recherche Scientifique (CNRS). Mark Gillingham was supported by a post-doctoral grant from the Conseil Régional de Bourgogne. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.