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...
Published in: | Diversity |
---|---|
Main Authors: | , , , , , , |
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 |
id |
ftdoajarticles:oai:doaj.org/article:3a9474e935964a4aa7bf425981669e8e |
---|---|
record_format |
openpolar |
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 |
_version_ |
1788063164802269184 |