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A new approach to study dispersal: immigration of novel alleles reveals female-biased dispersal in great reed warblers

Hansson, Bengt LU orcid ; Bensch, Staffan LU and Hasselquist, Dennis LU (2003) In Molecular Ecology 12(3). p.631-637
Abstract
We use the assignment technique and a new approach, the 'novel allele technique', to detect sex-biased dispersal in great reed warblers Acrocephalus arundinaceus . The data set consisted of immigrants and philopatric birds in a semi-isolated population in Sweden scored at 21 microsatellite loci. Fourteen cohorts were represented of which the four earliest were used to define a reference population. Female immigrants had lower assignment probability than males (i.e. were less likely to have been sampled in the reference population), and carried the majority of 'novel alleles' (i.e. alleles observed in the population for the first time). The difference in number of novel alleles between sexes was caused by a strong over-representation of... (More)
We use the assignment technique and a new approach, the 'novel allele technique', to detect sex-biased dispersal in great reed warblers Acrocephalus arundinaceus . The data set consisted of immigrants and philopatric birds in a semi-isolated population in Sweden scored at 21 microsatellite loci. Fourteen cohorts were represented of which the four earliest were used to define a reference population. Female immigrants had lower assignment probability than males (i.e. were less likely to have been sampled in the reference population), and carried the majority of 'novel alleles' (i.e. alleles observed in the population for the first time). The difference in number of novel alleles between sexes was caused by a strong over-representation of females among the few individuals that carried several novel alleles, and there was a tendency for a corresponding female bias among individuals with low assignment probabilities. Immigrant males had similar or lower reproductive success than females. These results lead us to conclude that important interregional gene flow in great reed warblers depends on relatively few dispersing females, and that the novel allele technique may be a useful complement to the assignment technique when evaluating dispersal patterns from temporally structured data. (Less)
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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Molecular Ecology
volume
12
issue
3
pages
7 pages
publisher
Wiley-Blackwell
external identifiers
  • wos:000181230900006
  • pmid:12675819
  • scopus:0037348818
ISSN
0962-1083
DOI
10.1046/j.1365-294X.2003.01772.x
project
Long-term study of great reed warblers
language
English
LU publication?
yes
id
5f7ccee1-266f-44ae-9672-a792466e70fe (old id 137371)
date added to LUP
2016-04-01 12:00:31
date last changed
2022-01-26 21:28:28
@article{5f7ccee1-266f-44ae-9672-a792466e70fe,
  abstract     = {{We use the assignment technique and a new approach, the 'novel allele technique', to detect sex-biased dispersal in great reed warblers Acrocephalus arundinaceus . The data set consisted of immigrants and philopatric birds in a semi-isolated population in Sweden scored at 21 microsatellite loci. Fourteen cohorts were represented of which the four earliest were used to define a reference population. Female immigrants had lower assignment probability than males (i.e. were less likely to have been sampled in the reference population), and carried the majority of 'novel alleles' (i.e. alleles observed in the population for the first time). The difference in number of novel alleles between sexes was caused by a strong over-representation of females among the few individuals that carried several novel alleles, and there was a tendency for a corresponding female bias among individuals with low assignment probabilities. Immigrant males had similar or lower reproductive success than females. These results lead us to conclude that important interregional gene flow in great reed warblers depends on relatively few dispersing females, and that the novel allele technique may be a useful complement to the assignment technique when evaluating dispersal patterns from temporally structured data.}},
  author       = {{Hansson, Bengt and Bensch, Staffan and Hasselquist, Dennis}},
  issn         = {{0962-1083}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{631--637}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Molecular Ecology}},
  title        = {{A new approach to study dispersal: immigration of novel alleles reveals female-biased dispersal in great reed warblers}},
  url          = {{https://lup.lub.lu.se/search/files/2741194/624655.pdf}},
  doi          = {{10.1046/j.1365-294X.2003.01772.x}},
  volume       = {{12}},
  year         = {{2003}},
}