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A hybrid population of Willow Warblers in the Åland Archipelago

Andersson, Jesper Emanuel LU orcid ; Lehikoinen, Petteri LU orcid ; Berdougo, Michaëla LU ; Jolkkonen, Juho and Bensch, Staffan LU (2024) In Journal of Ornithology
Abstract

Differences in migratory behavior have been suggested to drive speciation, but the genetics underlying this process remain unknown. Identification and study of migratory divides can help us understand how differential migration can lead to reproductive isolation. Here, we genotyped Willow Warblers Phylloscopus trochilus, from the Åland islands, located in between the ranges of the differentially migrating subspecies P. t. trochilus and P. t. acredula. We found that Willow Warblers on the Åland islands were genetically intermediate to allopatric populations of both parental subspecies, providing evidence that the islands constitute a previously unknown hybrid swarm, likely to be a migratory divide.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
Hybrid zone, Migratory divide, Population structure, Willow Warbler, Åland Islands
in
Journal of Ornithology
publisher
Springer
external identifiers
  • scopus:85186851082
ISSN
2193-7192
DOI
10.1007/s10336-024-02149-0
language
English
LU publication?
yes
id
bdbd55e5-edae-4636-a2ec-16b3abd373ae
date added to LUP
2024-04-03 15:08:13
date last changed
2024-04-03 15:09:04
@article{bdbd55e5-edae-4636-a2ec-16b3abd373ae,
  abstract     = {{<p>Differences in migratory behavior have been suggested to drive speciation, but the genetics underlying this process remain unknown. Identification and study of migratory divides can help us understand how differential migration can lead to reproductive isolation. Here, we genotyped Willow Warblers Phylloscopus trochilus, from the Åland islands, located in between the ranges of the differentially migrating subspecies P. t. trochilus and P. t. acredula. We found that Willow Warblers on the Åland islands were genetically intermediate to allopatric populations of both parental subspecies, providing evidence that the islands constitute a previously unknown hybrid swarm, likely to be a migratory divide.</p>}},
  author       = {{Andersson, Jesper Emanuel and Lehikoinen, Petteri and Berdougo, Michaëla and Jolkkonen, Juho and Bensch, Staffan}},
  issn         = {{2193-7192}},
  keywords     = {{Hybrid zone; Migratory divide; Population structure; Willow Warbler; Åland Islands}},
  language     = {{eng}},
  publisher    = {{Springer}},
  series       = {{Journal of Ornithology}},
  title        = {{A hybrid population of Willow Warblers in the Åland Archipelago}},
  url          = {{http://dx.doi.org/10.1007/s10336-024-02149-0}},
  doi          = {{10.1007/s10336-024-02149-0}},
  year         = {{2024}},
}