Genetic structure in the European endemic seabird, Phalacrocorax aristotelis , shaped by a complex interaction of historical and contemporary, physical and nonphysical drivers
Abstract Geographically separated populations tend to be less connected by gene flow, as a result of physical or nonphysical barriers preventing dispersal, and this can lead to genetic structure. In this context, highly mobile organisms such as seabirds are interesting because the small effect of ph...
Published in: | Molecular Ecology |
---|---|
Main Authors: | , , , , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2017
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/mec.13996 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.13996 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.13996 |
id |
crwiley:10.1111/mec.13996 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/mec.13996 2023-12-03T10:27:06+01:00 Genetic structure in the European endemic seabird, Phalacrocorax aristotelis , shaped by a complex interaction of historical and contemporary, physical and nonphysical drivers Thanou, Evanthia Sponza, Stefano Nelson, Emily J. Perry, Annika Wanless, Sarah Daunt, Francis Cavers, Stephen British Ornithologists’ Union Hellenic Ornithological Society (HOS) British Ornithologists’ Union 2017 http://dx.doi.org/10.1111/mec.13996 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.13996 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.13996 en eng Wiley http://creativecommons.org/licenses/by/4.0/ http://doi.wiley.com/10.1002/tdm_license_1.1 http://creativecommons.org/licenses/by/4.0/ Molecular Ecology volume 26, issue 10, page 2796-2811 ISSN 0962-1083 1365-294X Genetics Ecology, Evolution, Behavior and Systematics journal-article 2017 crwiley https://doi.org/10.1111/mec.13996 2023-11-09T14:23:54Z Abstract Geographically separated populations tend to be less connected by gene flow, as a result of physical or nonphysical barriers preventing dispersal, and this can lead to genetic structure. In this context, highly mobile organisms such as seabirds are interesting because the small effect of physical barriers means nonphysical ones may be relatively more important. Here, we use microsatellite and mitochondrial data to explore the genetic structure and phylogeography of Atlantic and Mediterranean populations of a European endemic seabird, the European shag, Phalacrocorax aristotelis , and identify the primary drivers of their diversification. Analyses of mitochondrial markers revealed three phylogenetic lineages grouping the North Atlantic, Spanish/Corsican and eastern Mediterranean populations, apparently arising from fragmentation during the Pleistocene followed by range expansion. These traces of historical fragmentation were also evident in the genetic structure estimated by microsatellite markers, despite significant contemporary gene flow among adjacent populations. Stronger genetic structure, probably promoted by landscape, philopatry and local adaptation, was found among distant populations and those separated by physical and ecological barriers. This study highlights the enduring effect of Pleistocene climatic changes on shag populations, especially within the Mediterranean Basin, and suggests a role for cryptic northern refugia, as well as known southern refugia, on the genetic structure of European seabirds. Finally, it outlines how contemporary ecological barriers and behavioural traits may maintain population divergence, despite long‐distance dispersal triggered by extreme environmental conditions (e.g. population crashes). Article in Journal/Newspaper North Atlantic Wiley Online Library (via Crossref) Molecular Ecology 26 10 2796 2811 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Genetics Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Genetics Ecology, Evolution, Behavior and Systematics Thanou, Evanthia Sponza, Stefano Nelson, Emily J. Perry, Annika Wanless, Sarah Daunt, Francis Cavers, Stephen Genetic structure in the European endemic seabird, Phalacrocorax aristotelis , shaped by a complex interaction of historical and contemporary, physical and nonphysical drivers |
topic_facet |
Genetics Ecology, Evolution, Behavior and Systematics |
description |
Abstract Geographically separated populations tend to be less connected by gene flow, as a result of physical or nonphysical barriers preventing dispersal, and this can lead to genetic structure. In this context, highly mobile organisms such as seabirds are interesting because the small effect of physical barriers means nonphysical ones may be relatively more important. Here, we use microsatellite and mitochondrial data to explore the genetic structure and phylogeography of Atlantic and Mediterranean populations of a European endemic seabird, the European shag, Phalacrocorax aristotelis , and identify the primary drivers of their diversification. Analyses of mitochondrial markers revealed three phylogenetic lineages grouping the North Atlantic, Spanish/Corsican and eastern Mediterranean populations, apparently arising from fragmentation during the Pleistocene followed by range expansion. These traces of historical fragmentation were also evident in the genetic structure estimated by microsatellite markers, despite significant contemporary gene flow among adjacent populations. Stronger genetic structure, probably promoted by landscape, philopatry and local adaptation, was found among distant populations and those separated by physical and ecological barriers. This study highlights the enduring effect of Pleistocene climatic changes on shag populations, especially within the Mediterranean Basin, and suggests a role for cryptic northern refugia, as well as known southern refugia, on the genetic structure of European seabirds. Finally, it outlines how contemporary ecological barriers and behavioural traits may maintain population divergence, despite long‐distance dispersal triggered by extreme environmental conditions (e.g. population crashes). |
author2 |
British Ornithologists’ Union Hellenic Ornithological Society (HOS) British Ornithologists’ Union |
format |
Article in Journal/Newspaper |
author |
Thanou, Evanthia Sponza, Stefano Nelson, Emily J. Perry, Annika Wanless, Sarah Daunt, Francis Cavers, Stephen |
author_facet |
Thanou, Evanthia Sponza, Stefano Nelson, Emily J. Perry, Annika Wanless, Sarah Daunt, Francis Cavers, Stephen |
author_sort |
Thanou, Evanthia |
title |
Genetic structure in the European endemic seabird, Phalacrocorax aristotelis , shaped by a complex interaction of historical and contemporary, physical and nonphysical drivers |
title_short |
Genetic structure in the European endemic seabird, Phalacrocorax aristotelis , shaped by a complex interaction of historical and contemporary, physical and nonphysical drivers |
title_full |
Genetic structure in the European endemic seabird, Phalacrocorax aristotelis , shaped by a complex interaction of historical and contemporary, physical and nonphysical drivers |
title_fullStr |
Genetic structure in the European endemic seabird, Phalacrocorax aristotelis , shaped by a complex interaction of historical and contemporary, physical and nonphysical drivers |
title_full_unstemmed |
Genetic structure in the European endemic seabird, Phalacrocorax aristotelis , shaped by a complex interaction of historical and contemporary, physical and nonphysical drivers |
title_sort |
genetic structure in the european endemic seabird, phalacrocorax aristotelis , shaped by a complex interaction of historical and contemporary, physical and nonphysical drivers |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1111/mec.13996 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.13996 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.13996 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Molecular Ecology volume 26, issue 10, page 2796-2811 ISSN 0962-1083 1365-294X |
op_rights |
http://creativecommons.org/licenses/by/4.0/ http://doi.wiley.com/10.1002/tdm_license_1.1 http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1111/mec.13996 |
container_title |
Molecular Ecology |
container_volume |
26 |
container_issue |
10 |
container_start_page |
2796 |
op_container_end_page |
2811 |
_version_ |
1784276691851411456 |