Authors
Thomas Broquet, Jonathan Yearsley, Alexandre H Hirzel, Jerome Goudet, Nicolas Perrin
Publication date
2009/3
Journal
Molecular Ecology
Volume
18
Issue
6
Pages
1048-1060
Publisher
Blackwell Publishing Ltd
Description
We present a novel and straightforward method for estimating recent migration rates between discrete populations using multilocus genotype data. The approach builds upon a two‐step sampling design, where individual genotypes are sampled before and after dispersal. We develop a model that estimates all pairwise backwards migration rates (mij, the probability that an individual sampled in population i is a migrant from population j) between a set of populations. The method is validated with simulated data and compared with the methods of BayesAss and Structure. First, we use data for an island model and then we consider more realistic data simulations for a metapopulation of the greater white‐toothed shrew (Crocidura russula). We show that the precision and bias of estimates primarily depend upon the proportion of individuals sampled in each population. Weak sampling designs may particularly affect the …
Total citations
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Scholar articles
T Broquet, J Yearsley, AH Hirzel, J Goudet, N Perrin - Molecular Ecology, 2009