2 Works

Data from: Alien eggs in duck nests: brood parasitism or a help from Grandma?

Ralph Tiedemann, Kirsten B Paulus, Katja Havenstein, Sverrir Thorstensen, Aevar Petersen, Peter Lyngs & Michel C Milinkovitch
Intraspecific brood parasitism (IBP) is a remarkable phenomenon by which parasitic females can increase their reproductive output by laying eggs in conspecific females' nests in addition to incubating eggs in their own nest. Kin selection could explain the tolerance, or even the selective advantage, of IBP, but different models of IBP based on game theory yield contradicting predictions. Our analyses of 7 polymorphic autosomal microsatellites in two eider duck colonies indicate that relatedness between host...

Data from: Heterozygosity-fitness correlations in a migratory bird: an analysis of inbreeding and single-locus effects

Xavier A. Harrison, Stuart Bearhop, Richard Inger, Kendrew Colhoun, Gudmundur A. Gudmundsson, David Hodgson, Graham McElwaine & Tom Tregenza
Studies in a multitude of taxa have described a correlation between heterozygosity and fitness, and usually conclude that this is evidence for inbreeding depression. Here we have used multi-locus heterozygosity estimates from 15 microsatellite markers to show evidence of heterozygosity-fitness correlations (HFCs) in a long-distance migratory bird, the light-bellied Brent goose. We found significant, positive heterozygosity-heterozygosity correlations between random subsets of the markers we employ, and no evidence that a model containing all loci as...

Registration Year

  • 2011
    2

Resource Types

  • Dataset
    2

Affiliations

  • Icelandic Institute of Natural History
    2
  • University of Geneva
    1
  • University of Potsdam
    1
  • Wildfowl & Wetlands Trust
    1
  • University of Exeter
    1