Implications of Historical and Contemporary Processes on Genetic Differentiation of a Declining Boreal Songbird: The Rusty Blackbird

The arrangement of habitat features via historical or contemporary events can strongly influence genomic and demographic connectivity, and in turn affect levels of genetic diversity and resilience of populations to environmental perturbation. The rusty blackbird ( Euphagus carolinus ) is a forested...

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Published in:Diversity
Main Authors: Robert E. Wilson, Steven M. Matsuoka, Luke L. Powell, James A. Johnson, Dean W. Demarest, Diana Stralberg, Sarah A. Sonsthagen
Format: Article in Journal/Newspaper
Language:English
Published: MDPI AG 2021
Subjects:
Online Access:https://doi.org/10.3390/d13030103
https://doaj.org/article/3a9474e935964a4aa7bf425981669e8e
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spelling ftdoajarticles:oai:doaj.org/article:3a9474e935964a4aa7bf425981669e8e 2024-01-14T10:08:45+01:00 Implications of Historical and Contemporary Processes on Genetic Differentiation of a Declining Boreal Songbird: The Rusty Blackbird Robert E. Wilson Steven M. Matsuoka Luke L. Powell James A. Johnson Dean W. Demarest Diana Stralberg Sarah A. Sonsthagen 2021-02-01T00:00:00Z https://doi.org/10.3390/d13030103 https://doaj.org/article/3a9474e935964a4aa7bf425981669e8e EN eng MDPI AG https://www.mdpi.com/1424-2818/13/3/103 https://doaj.org/toc/1424-2818 doi:10.3390/d13030103 1424-2818 https://doaj.org/article/3a9474e935964a4aa7bf425981669e8e Diversity, Vol 13, Iss 3, p 103 (2021) Euphagus carolinus genetic diversity boreal glacial refugia phylogeography Biology (General) QH301-705.5 article 2021 ftdoajarticles https://doi.org/10.3390/d13030103 2023-12-17T01:45:07Z The arrangement of habitat features via historical or contemporary events can strongly influence genomic and demographic connectivity, and in turn affect levels of genetic diversity and resilience of populations to environmental perturbation. The rusty blackbird ( Euphagus carolinus ) is a forested wetland habitat specialist whose population size has declined sharply (78%) over recent decades. The species breeds across the expansive North American boreal forest region, which contains a mosaic of habitat conditions resulting from active natural disturbance regimes and glacial history. We used landscape genomics to evaluate how past and present landscape features have shaped patterns of genetic diversity and connectivity across the species’ breeding range. Based on reduced-representation genomic and mitochondrial DNA, genetic structure followed four broad patterns influenced by both historical and contemporary forces: (1) an east–west partition consistent with vicariance during the last glacial maximum; (2) a potential secondary contact zone between eastern and western lineages at James Bay, Ontario; (3) insular differentiation of birds on Newfoundland; and (4) restricted regional gene flow among locales within western and eastern North America. The presence of genomic structure and therefore restricted dispersal among populations may limit the species’ capacity to respond to rapid environmental change. Article in Journal/Newspaper Newfoundland James Bay Directory of Open Access Journals: DOAJ Articles Diversity 13 3 103
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
topic Euphagus carolinus
genetic diversity
boreal
glacial refugia
phylogeography
Biology (General)
QH301-705.5
spellingShingle Euphagus carolinus
genetic diversity
boreal
glacial refugia
phylogeography
Biology (General)
QH301-705.5
Robert E. Wilson
Steven M. Matsuoka
Luke L. Powell
James A. Johnson
Dean W. Demarest
Diana Stralberg
Sarah A. Sonsthagen
Implications of Historical and Contemporary Processes on Genetic Differentiation of a Declining Boreal Songbird: The Rusty Blackbird
topic_facet Euphagus carolinus
genetic diversity
boreal
glacial refugia
phylogeography
Biology (General)
QH301-705.5
description The arrangement of habitat features via historical or contemporary events can strongly influence genomic and demographic connectivity, and in turn affect levels of genetic diversity and resilience of populations to environmental perturbation. The rusty blackbird ( Euphagus carolinus ) is a forested wetland habitat specialist whose population size has declined sharply (78%) over recent decades. The species breeds across the expansive North American boreal forest region, which contains a mosaic of habitat conditions resulting from active natural disturbance regimes and glacial history. We used landscape genomics to evaluate how past and present landscape features have shaped patterns of genetic diversity and connectivity across the species’ breeding range. Based on reduced-representation genomic and mitochondrial DNA, genetic structure followed four broad patterns influenced by both historical and contemporary forces: (1) an east–west partition consistent with vicariance during the last glacial maximum; (2) a potential secondary contact zone between eastern and western lineages at James Bay, Ontario; (3) insular differentiation of birds on Newfoundland; and (4) restricted regional gene flow among locales within western and eastern North America. The presence of genomic structure and therefore restricted dispersal among populations may limit the species’ capacity to respond to rapid environmental change.
format Article in Journal/Newspaper
author Robert E. Wilson
Steven M. Matsuoka
Luke L. Powell
James A. Johnson
Dean W. Demarest
Diana Stralberg
Sarah A. Sonsthagen
author_facet Robert E. Wilson
Steven M. Matsuoka
Luke L. Powell
James A. Johnson
Dean W. Demarest
Diana Stralberg
Sarah A. Sonsthagen
author_sort Robert E. Wilson
title Implications of Historical and Contemporary Processes on Genetic Differentiation of a Declining Boreal Songbird: The Rusty Blackbird
title_short Implications of Historical and Contemporary Processes on Genetic Differentiation of a Declining Boreal Songbird: The Rusty Blackbird
title_full Implications of Historical and Contemporary Processes on Genetic Differentiation of a Declining Boreal Songbird: The Rusty Blackbird
title_fullStr Implications of Historical and Contemporary Processes on Genetic Differentiation of a Declining Boreal Songbird: The Rusty Blackbird
title_full_unstemmed Implications of Historical and Contemporary Processes on Genetic Differentiation of a Declining Boreal Songbird: The Rusty Blackbird
title_sort implications of historical and contemporary processes on genetic differentiation of a declining boreal songbird: the rusty blackbird
publisher MDPI AG
publishDate 2021
url https://doi.org/10.3390/d13030103
https://doaj.org/article/3a9474e935964a4aa7bf425981669e8e
genre Newfoundland
James Bay
genre_facet Newfoundland
James Bay
op_source Diversity, Vol 13, Iss 3, p 103 (2021)
op_relation https://www.mdpi.com/1424-2818/13/3/103
https://doaj.org/toc/1424-2818
doi:10.3390/d13030103
1424-2818
https://doaj.org/article/3a9474e935964a4aa7bf425981669e8e
op_doi https://doi.org/10.3390/d13030103
container_title Diversity
container_volume 13
container_issue 3
container_start_page 103
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