Circumpolar phylogeography and demographic history of beluga whales reflect past climatic fluctuations
Several Arctic marine mammal species are predicted to be negatively impacted by rapid sea ice loss associated with ongoing ocean warming. However, consequences for Arctic whales remain uncertain. To investigate how Arctic whales responded to past climatic fluctuations, we analysed 206 mitochondrial...
Published in: | Molecular Ecology |
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2021
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Online Access: | https://curis.ku.dk/portal/da/publications/circumpolar-phylogeography-and-demographic-history-of-beluga-whales-reflect-past-climatic-fluctuations(f51d89e3-6d48-48d6-98c4-556163c54c8d).html https://doi.org/10.1111/mec.15915 |
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ftcopenhagenunip:oai:pure.atira.dk:publications/f51d89e3-6d48-48d6-98c4-556163c54c8d 2024-05-19T07:34:43+00:00 Circumpolar phylogeography and demographic history of beluga whales reflect past climatic fluctuations Skovrind, Mikkel Louis, Marie Westbury, Michael V. Garilao, Cristina Kaschner, Kristin Castruita, José Alfredo Samaniego Gopalakrishnan, Shyam Knudsen, Steen Wilhelm Haile, James S. Dalén, Love Meshchersky, Ilya G. Shpak, Olga V. Glazov, Dmitry M. Rozhnov, Viatcheslav V. Litovka, Dennis I. Krasnova, Vera V. Chernetsky, Anton D. Bel'kovich, Vsevolod M. Lydersen, Christian Kovacs, Kit M. Heide-Jørgensen, Mads Peter Postma, Lianne Ferguson, Steven H. Lorenzen, Eline D. 2021-06 https://curis.ku.dk/portal/da/publications/circumpolar-phylogeography-and-demographic-history-of-beluga-whales-reflect-past-climatic-fluctuations(f51d89e3-6d48-48d6-98c4-556163c54c8d).html https://doi.org/10.1111/mec.15915 eng eng info:eu-repo/semantics/closedAccess Skovrind , M , Louis , M , Westbury , M V , Garilao , C , Kaschner , K , Castruita , J A S , Gopalakrishnan , S , Knudsen , S W , Haile , J S , Dalén , L , Meshchersky , I G , Shpak , O V , Glazov , D M , Rozhnov , V V , Litovka , D I , Krasnova , V V , Chernetsky , A D , Bel'kovich , V M , Lydersen , C , Kovacs , K M , Heide-Jørgensen , M P , Postma , L , Ferguson , S H & Lorenzen , E D 2021 , ' Circumpolar phylogeography and demographic history of beluga whales reflect past climatic fluctuations ' , Molecular Ecology , vol. 30 , no. 11 , pp. 2543-2559 . https://doi.org/10.1111/mec.15915 Arctic climate change habitat models mitogenomes nuclear genomes white whales COMPLETE MITOCHONDRIAL GENOME DELPHINAPTERUS-LEUCAS SEA-ICE EVOLUTION DIVERGENCE ALIGNMENT MODEL TEMPERATURE LINEAGES article 2021 ftcopenhagenunip https://doi.org/10.1111/mec.15915 2024-05-02T00:33:13Z Several Arctic marine mammal species are predicted to be negatively impacted by rapid sea ice loss associated with ongoing ocean warming. However, consequences for Arctic whales remain uncertain. To investigate how Arctic whales responded to past climatic fluctuations, we analysed 206 mitochondrial genomes from beluga whales (Delphinapterus leucas) sampled across their circumpolar range, and four nuclear genomes, covering both the Atlantic and the Pacific Arctic region. We found four well-differentiated mitochondrial lineages, which were established before the onset of the last glacial expansion similar to 110 thousand years ago. Our findings suggested these lineages diverged in allopatry, reflecting isolation of populations during glacial periods when the Arctic sea-shelf was covered by multiyear sea ice. Subsequent population expansion and secondary contact between the Atlantic and Pacific Oceans shaped the current geographic distribution of lineages, and may have facilitated mitochondrial introgression. Our demographic reconstructions based on both mitochondrial and nuclear genomes showed markedly lower population sizes during the Last Glacial Maximum (LGM) compared to the preceding Eemian and current Holocene interglacial periods. Habitat modelling similarly revealed less suitable habitat during the LGM (glacial) than at present (interglacial). Together, our findings suggested the association between climate, population size, and available habitat in belugas. Forecasts for year 2100 showed that beluga habitat will decrease and shift northwards as oceans continue to warm, putatively leading to population declines in some beluga populations. Finally, we identified vulnerable populations which, if extirpated as a consequence of ocean warming, will lead to a substantial decline of species-wide haplotype diversity. Article in Journal/Newspaper Arctic Beluga Beluga* Climate change Delphinapterus leucas Pacific Arctic Sea ice University of Copenhagen: Research Molecular Ecology 30 11 2543 2559 |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
topic |
Arctic climate change habitat models mitogenomes nuclear genomes white whales COMPLETE MITOCHONDRIAL GENOME DELPHINAPTERUS-LEUCAS SEA-ICE EVOLUTION DIVERGENCE ALIGNMENT MODEL TEMPERATURE LINEAGES |
spellingShingle |
Arctic climate change habitat models mitogenomes nuclear genomes white whales COMPLETE MITOCHONDRIAL GENOME DELPHINAPTERUS-LEUCAS SEA-ICE EVOLUTION DIVERGENCE ALIGNMENT MODEL TEMPERATURE LINEAGES Skovrind, Mikkel Louis, Marie Westbury, Michael V. Garilao, Cristina Kaschner, Kristin Castruita, José Alfredo Samaniego Gopalakrishnan, Shyam Knudsen, Steen Wilhelm Haile, James S. Dalén, Love Meshchersky, Ilya G. Shpak, Olga V. Glazov, Dmitry M. Rozhnov, Viatcheslav V. Litovka, Dennis I. Krasnova, Vera V. Chernetsky, Anton D. Bel'kovich, Vsevolod M. Lydersen, Christian Kovacs, Kit M. Heide-Jørgensen, Mads Peter Postma, Lianne Ferguson, Steven H. Lorenzen, Eline D. Circumpolar phylogeography and demographic history of beluga whales reflect past climatic fluctuations |
topic_facet |
Arctic climate change habitat models mitogenomes nuclear genomes white whales COMPLETE MITOCHONDRIAL GENOME DELPHINAPTERUS-LEUCAS SEA-ICE EVOLUTION DIVERGENCE ALIGNMENT MODEL TEMPERATURE LINEAGES |
description |
Several Arctic marine mammal species are predicted to be negatively impacted by rapid sea ice loss associated with ongoing ocean warming. However, consequences for Arctic whales remain uncertain. To investigate how Arctic whales responded to past climatic fluctuations, we analysed 206 mitochondrial genomes from beluga whales (Delphinapterus leucas) sampled across their circumpolar range, and four nuclear genomes, covering both the Atlantic and the Pacific Arctic region. We found four well-differentiated mitochondrial lineages, which were established before the onset of the last glacial expansion similar to 110 thousand years ago. Our findings suggested these lineages diverged in allopatry, reflecting isolation of populations during glacial periods when the Arctic sea-shelf was covered by multiyear sea ice. Subsequent population expansion and secondary contact between the Atlantic and Pacific Oceans shaped the current geographic distribution of lineages, and may have facilitated mitochondrial introgression. Our demographic reconstructions based on both mitochondrial and nuclear genomes showed markedly lower population sizes during the Last Glacial Maximum (LGM) compared to the preceding Eemian and current Holocene interglacial periods. Habitat modelling similarly revealed less suitable habitat during the LGM (glacial) than at present (interglacial). Together, our findings suggested the association between climate, population size, and available habitat in belugas. Forecasts for year 2100 showed that beluga habitat will decrease and shift northwards as oceans continue to warm, putatively leading to population declines in some beluga populations. Finally, we identified vulnerable populations which, if extirpated as a consequence of ocean warming, will lead to a substantial decline of species-wide haplotype diversity. |
format |
Article in Journal/Newspaper |
author |
Skovrind, Mikkel Louis, Marie Westbury, Michael V. Garilao, Cristina Kaschner, Kristin Castruita, José Alfredo Samaniego Gopalakrishnan, Shyam Knudsen, Steen Wilhelm Haile, James S. Dalén, Love Meshchersky, Ilya G. Shpak, Olga V. Glazov, Dmitry M. Rozhnov, Viatcheslav V. Litovka, Dennis I. Krasnova, Vera V. Chernetsky, Anton D. Bel'kovich, Vsevolod M. Lydersen, Christian Kovacs, Kit M. Heide-Jørgensen, Mads Peter Postma, Lianne Ferguson, Steven H. Lorenzen, Eline D. |
author_facet |
Skovrind, Mikkel Louis, Marie Westbury, Michael V. Garilao, Cristina Kaschner, Kristin Castruita, José Alfredo Samaniego Gopalakrishnan, Shyam Knudsen, Steen Wilhelm Haile, James S. Dalén, Love Meshchersky, Ilya G. Shpak, Olga V. Glazov, Dmitry M. Rozhnov, Viatcheslav V. Litovka, Dennis I. Krasnova, Vera V. Chernetsky, Anton D. Bel'kovich, Vsevolod M. Lydersen, Christian Kovacs, Kit M. Heide-Jørgensen, Mads Peter Postma, Lianne Ferguson, Steven H. Lorenzen, Eline D. |
author_sort |
Skovrind, Mikkel |
title |
Circumpolar phylogeography and demographic history of beluga whales reflect past climatic fluctuations |
title_short |
Circumpolar phylogeography and demographic history of beluga whales reflect past climatic fluctuations |
title_full |
Circumpolar phylogeography and demographic history of beluga whales reflect past climatic fluctuations |
title_fullStr |
Circumpolar phylogeography and demographic history of beluga whales reflect past climatic fluctuations |
title_full_unstemmed |
Circumpolar phylogeography and demographic history of beluga whales reflect past climatic fluctuations |
title_sort |
circumpolar phylogeography and demographic history of beluga whales reflect past climatic fluctuations |
publishDate |
2021 |
url |
https://curis.ku.dk/portal/da/publications/circumpolar-phylogeography-and-demographic-history-of-beluga-whales-reflect-past-climatic-fluctuations(f51d89e3-6d48-48d6-98c4-556163c54c8d).html https://doi.org/10.1111/mec.15915 |
genre |
Arctic Beluga Beluga* Climate change Delphinapterus leucas Pacific Arctic Sea ice |
genre_facet |
Arctic Beluga Beluga* Climate change Delphinapterus leucas Pacific Arctic Sea ice |
op_source |
Skovrind , M , Louis , M , Westbury , M V , Garilao , C , Kaschner , K , Castruita , J A S , Gopalakrishnan , S , Knudsen , S W , Haile , J S , Dalén , L , Meshchersky , I G , Shpak , O V , Glazov , D M , Rozhnov , V V , Litovka , D I , Krasnova , V V , Chernetsky , A D , Bel'kovich , V M , Lydersen , C , Kovacs , K M , Heide-Jørgensen , M P , Postma , L , Ferguson , S H & Lorenzen , E D 2021 , ' Circumpolar phylogeography and demographic history of beluga whales reflect past climatic fluctuations ' , Molecular Ecology , vol. 30 , no. 11 , pp. 2543-2559 . https://doi.org/10.1111/mec.15915 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1111/mec.15915 |
container_title |
Molecular Ecology |
container_volume |
30 |
container_issue |
11 |
container_start_page |
2543 |
op_container_end_page |
2559 |
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1799472895493144576 |