Long‐term population decline of a genetically homogeneous continental‐wide top Arctic predator
Genetic analysis can provide valuable information for conservation programmes by unravelling the demographic trajectory of populations, estimating effective population size or inferring genetic differentiation between populations. Here, we investigated the genetic differentiation within Snowy Owls B...
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Online Access: | http://dx.doi.org/10.1111/ibi.13199 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ibi.13199 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ibi.13199 |
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crwiley:10.1111/ibi.13199 2024-06-02T08:01:48+00:00 Long‐term population decline of a genetically homogeneous continental‐wide top Arctic predator Gousy‐Leblanc, Marianne Therrien, Jean‐François Broquet, Thomas Rioux, Delphine Curt‐Grand‐Gaudin, Nadine Tissot, Nathalie Tissot, Sophie Szabo, Ildiko Wilson, Laurie Evans, Jack T. Bowes, Victoria Gauthier, Gilles Wiebe, Karen L. Yannic, Glenn Lecomte, Nicolas Canada Research Chairs Natural Sciences and Engineering Research Council of Canada Polar Knowledge Canada 2023 http://dx.doi.org/10.1111/ibi.13199 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ibi.13199 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ibi.13199 en eng Wiley http://creativecommons.org/licenses/by-nc/4.0/ Ibis volume 165, issue 4, page 1251-1266 ISSN 0019-1019 1474-919X journal-article 2023 crwiley https://doi.org/10.1111/ibi.13199 2024-05-03T12:00:19Z Genetic analysis can provide valuable information for conservation programmes by unravelling the demographic trajectory of populations, estimating effective population size or inferring genetic differentiation between populations. Here, we investigated the genetic differentiation within Snowy Owls Bubo scandiacus in North America, a species identified as vulnerable by the IUCN, to (1) quantify connectivity among wintering areas, (2) evaluate current genetic diversity and effective population size, and (3) infer changes in the historical effective population size changes from the last millennia to the recent past. The Snowy Owl, a highly mobile top predator, breeds across the Arctic tundra, a region especially sensitive to current climate change. Using single‐nucleotide polymorphism (SNP)‐based analyses on Snowy Owls sampled across the North American non‐breeding range, we found an absence of genetic differentiation among individuals located up to 4650 km apart. Our results suggest high genetic intermixing and effective dispersal at the continental scale despite documented philopatry to non‐breeding sites in winter. Reconstructing the population demographic indicated that North American Snowy Owls have been steadily declining since the Last Glacial Maximum c. 20 000 years ago, and concurrently with global increases in temperature. Conservation programmes should now consider North American Snowy Owls a single, genetically homogeneous continental‐wide population which is probably sensitive to the long‐term global warming occurring since the Last Glacial Maximum. Article in Journal/Newspaper Arctic Bubo scandiacus Climate change Global warming snowy owl Tundra Wiley Online Library Arctic Ibis 165 4 1251 1266 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Genetic analysis can provide valuable information for conservation programmes by unravelling the demographic trajectory of populations, estimating effective population size or inferring genetic differentiation between populations. Here, we investigated the genetic differentiation within Snowy Owls Bubo scandiacus in North America, a species identified as vulnerable by the IUCN, to (1) quantify connectivity among wintering areas, (2) evaluate current genetic diversity and effective population size, and (3) infer changes in the historical effective population size changes from the last millennia to the recent past. The Snowy Owl, a highly mobile top predator, breeds across the Arctic tundra, a region especially sensitive to current climate change. Using single‐nucleotide polymorphism (SNP)‐based analyses on Snowy Owls sampled across the North American non‐breeding range, we found an absence of genetic differentiation among individuals located up to 4650 km apart. Our results suggest high genetic intermixing and effective dispersal at the continental scale despite documented philopatry to non‐breeding sites in winter. Reconstructing the population demographic indicated that North American Snowy Owls have been steadily declining since the Last Glacial Maximum c. 20 000 years ago, and concurrently with global increases in temperature. Conservation programmes should now consider North American Snowy Owls a single, genetically homogeneous continental‐wide population which is probably sensitive to the long‐term global warming occurring since the Last Glacial Maximum. |
author2 |
Canada Research Chairs Natural Sciences and Engineering Research Council of Canada Polar Knowledge Canada |
format |
Article in Journal/Newspaper |
author |
Gousy‐Leblanc, Marianne Therrien, Jean‐François Broquet, Thomas Rioux, Delphine Curt‐Grand‐Gaudin, Nadine Tissot, Nathalie Tissot, Sophie Szabo, Ildiko Wilson, Laurie Evans, Jack T. Bowes, Victoria Gauthier, Gilles Wiebe, Karen L. Yannic, Glenn Lecomte, Nicolas |
spellingShingle |
Gousy‐Leblanc, Marianne Therrien, Jean‐François Broquet, Thomas Rioux, Delphine Curt‐Grand‐Gaudin, Nadine Tissot, Nathalie Tissot, Sophie Szabo, Ildiko Wilson, Laurie Evans, Jack T. Bowes, Victoria Gauthier, Gilles Wiebe, Karen L. Yannic, Glenn Lecomte, Nicolas Long‐term population decline of a genetically homogeneous continental‐wide top Arctic predator |
author_facet |
Gousy‐Leblanc, Marianne Therrien, Jean‐François Broquet, Thomas Rioux, Delphine Curt‐Grand‐Gaudin, Nadine Tissot, Nathalie Tissot, Sophie Szabo, Ildiko Wilson, Laurie Evans, Jack T. Bowes, Victoria Gauthier, Gilles Wiebe, Karen L. Yannic, Glenn Lecomte, Nicolas |
author_sort |
Gousy‐Leblanc, Marianne |
title |
Long‐term population decline of a genetically homogeneous continental‐wide top Arctic predator |
title_short |
Long‐term population decline of a genetically homogeneous continental‐wide top Arctic predator |
title_full |
Long‐term population decline of a genetically homogeneous continental‐wide top Arctic predator |
title_fullStr |
Long‐term population decline of a genetically homogeneous continental‐wide top Arctic predator |
title_full_unstemmed |
Long‐term population decline of a genetically homogeneous continental‐wide top Arctic predator |
title_sort |
long‐term population decline of a genetically homogeneous continental‐wide top arctic predator |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1111/ibi.13199 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ibi.13199 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ibi.13199 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Bubo scandiacus Climate change Global warming snowy owl Tundra |
genre_facet |
Arctic Bubo scandiacus Climate change Global warming snowy owl Tundra |
op_source |
Ibis volume 165, issue 4, page 1251-1266 ISSN 0019-1019 1474-919X |
op_rights |
http://creativecommons.org/licenses/by-nc/4.0/ |
op_doi |
https://doi.org/10.1111/ibi.13199 |
container_title |
Ibis |
container_volume |
165 |
container_issue |
4 |
container_start_page |
1251 |
op_container_end_page |
1266 |
_version_ |
1800746297624363008 |