Unique biodiversity in Arctic marine forests is shaped by diverse recolonization pathways and far northern glacial refugia
The Arctic is experiencing a rapid shift toward warmer regimes, calling for a need to understand levels of biodiversity and ecosystem responses to climate cycles. This study presents genetic data for 109 Arctic marine forest species (seaweeds), which revealed contiguous populations extending from th...
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ftpubmed:oai:pubmedcentral.nih.gov:7486700 2023-05-15T14:32:10+02:00 Unique biodiversity in Arctic marine forests is shaped by diverse recolonization pathways and far northern glacial refugia Bringloe, Trevor T. Verbruggen, Heroen Saunders, Gary W. 2020-09-08 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7486700/ http://www.ncbi.nlm.nih.gov/pubmed/32843343 https://doi.org/10.1073/pnas.2002753117 en eng National Academy of Sciences http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7486700/ http://www.ncbi.nlm.nih.gov/pubmed/32843343 http://dx.doi.org/10.1073/pnas.2002753117 https://www.pnas.org/site/aboutpnas/licenses.xhtmlPublished under the PNAS license (https://www.pnas.org/site/aboutpnas/licenses.xhtml) . Proc Natl Acad Sci U S A Biological Sciences Text 2020 ftpubmed https://doi.org/10.1073/pnas.2002753117 2021-02-28T01:19:37Z The Arctic is experiencing a rapid shift toward warmer regimes, calling for a need to understand levels of biodiversity and ecosystem responses to climate cycles. This study presents genetic data for 109 Arctic marine forest species (seaweeds), which revealed contiguous populations extending from the Bering Sea to the northwest Atlantic, with high levels of genetic diversity in the east Canadian Arctic. One-fifth of the species sampled appeared restricted to Arctic waters. Further supported by hindcasted species distributions during the Last Glacial Maximum, we hypothesize that Arctic coastal systems were recolonized from many geographically disparate refugia leading to enriched diversity levels in the east Canadian Arctic, with important contributions stemming from northerly refugia likely centered along southern Greenland. Our results suggest Arctic marine biomes persisted through cycles of glaciation, leading to unique assemblages in polar waters, rather than being entirely derived from southerly (temperate) areas following glaciation. As such, Arctic marine species are potentially born from selective pressures during Cenozoic global cooling and eventual ice conditions beginning in the Pleistocene. Arctic endemic diversity was likely additionally driven by repeated isolations into globally disparate refugia during glaciation. This study highlights the need to take stock of unique Arctic marine biodiversity. Amplification of warming and loss of perennial ice cover are set to dramatically alter available Arctic coastal habitat, with the potential loss of diversity and decline in ecosystem resilience. Text Arctic Bering Sea Greenland Northwest Atlantic PubMed Central (PMC) Arctic Bering Sea Greenland Proceedings of the National Academy of Sciences 117 36 22590 22596 |
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English |
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Biological Sciences |
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Biological Sciences Bringloe, Trevor T. Verbruggen, Heroen Saunders, Gary W. Unique biodiversity in Arctic marine forests is shaped by diverse recolonization pathways and far northern glacial refugia |
topic_facet |
Biological Sciences |
description |
The Arctic is experiencing a rapid shift toward warmer regimes, calling for a need to understand levels of biodiversity and ecosystem responses to climate cycles. This study presents genetic data for 109 Arctic marine forest species (seaweeds), which revealed contiguous populations extending from the Bering Sea to the northwest Atlantic, with high levels of genetic diversity in the east Canadian Arctic. One-fifth of the species sampled appeared restricted to Arctic waters. Further supported by hindcasted species distributions during the Last Glacial Maximum, we hypothesize that Arctic coastal systems were recolonized from many geographically disparate refugia leading to enriched diversity levels in the east Canadian Arctic, with important contributions stemming from northerly refugia likely centered along southern Greenland. Our results suggest Arctic marine biomes persisted through cycles of glaciation, leading to unique assemblages in polar waters, rather than being entirely derived from southerly (temperate) areas following glaciation. As such, Arctic marine species are potentially born from selective pressures during Cenozoic global cooling and eventual ice conditions beginning in the Pleistocene. Arctic endemic diversity was likely additionally driven by repeated isolations into globally disparate refugia during glaciation. This study highlights the need to take stock of unique Arctic marine biodiversity. Amplification of warming and loss of perennial ice cover are set to dramatically alter available Arctic coastal habitat, with the potential loss of diversity and decline in ecosystem resilience. |
format |
Text |
author |
Bringloe, Trevor T. Verbruggen, Heroen Saunders, Gary W. |
author_facet |
Bringloe, Trevor T. Verbruggen, Heroen Saunders, Gary W. |
author_sort |
Bringloe, Trevor T. |
title |
Unique biodiversity in Arctic marine forests is shaped by diverse recolonization pathways and far northern glacial refugia |
title_short |
Unique biodiversity in Arctic marine forests is shaped by diverse recolonization pathways and far northern glacial refugia |
title_full |
Unique biodiversity in Arctic marine forests is shaped by diverse recolonization pathways and far northern glacial refugia |
title_fullStr |
Unique biodiversity in Arctic marine forests is shaped by diverse recolonization pathways and far northern glacial refugia |
title_full_unstemmed |
Unique biodiversity in Arctic marine forests is shaped by diverse recolonization pathways and far northern glacial refugia |
title_sort |
unique biodiversity in arctic marine forests is shaped by diverse recolonization pathways and far northern glacial refugia |
publisher |
National Academy of Sciences |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7486700/ http://www.ncbi.nlm.nih.gov/pubmed/32843343 https://doi.org/10.1073/pnas.2002753117 |
geographic |
Arctic Bering Sea Greenland |
geographic_facet |
Arctic Bering Sea Greenland |
genre |
Arctic Bering Sea Greenland Northwest Atlantic |
genre_facet |
Arctic Bering Sea Greenland Northwest Atlantic |
op_source |
Proc Natl Acad Sci U S A |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7486700/ http://www.ncbi.nlm.nih.gov/pubmed/32843343 http://dx.doi.org/10.1073/pnas.2002753117 |
op_rights |
https://www.pnas.org/site/aboutpnas/licenses.xhtmlPublished under the PNAS license (https://www.pnas.org/site/aboutpnas/licenses.xhtml) . |
op_doi |
https://doi.org/10.1073/pnas.2002753117 |
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Proceedings of the National Academy of Sciences |
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117 |
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36 |
container_start_page |
22590 |
op_container_end_page |
22596 |
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