Global biogeographic patterns in bipolar moss species
A bipolar disjunction is an extreme, yet common, biogeographic pattern in non-vascular plants, yet its underlying mechanisms (vicariance or long-distance dispersal), origin and timing remain poorly understood. Here, combining a large-scale population dataset and multiple dating analyses, we examine...
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crroyalsociety:10.1098/rsos.170147 2024-09-15T17:43:54+00:00 Global biogeographic patterns in bipolar moss species Biersma, E. M. Jackson, J. A. Hyvönen, J. Koskinen, S. Linse, K. Griffiths, H. Convey, P. Natural Environment Research Council 2017 http://dx.doi.org/10.1098/rsos.170147 https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.170147 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsos.170147 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Royal Society Open Science volume 4, issue 7, page 170147 ISSN 2054-5703 journal-article 2017 crroyalsociety https://doi.org/10.1098/rsos.170147 2024-06-24T04:28:23Z A bipolar disjunction is an extreme, yet common, biogeographic pattern in non-vascular plants, yet its underlying mechanisms (vicariance or long-distance dispersal), origin and timing remain poorly understood. Here, combining a large-scale population dataset and multiple dating analyses, we examine the biogeography of four bipolar Polytrichales mosses, common to the Holarctic (temperate and polar Northern Hemisphere regions) and the Antarctic region (Antarctic, sub-Antarctic, southern South America) and other Southern Hemisphere (SH) regions. Our data reveal contrasting patterns, for three species were of Holarctic origin, with subsequent dispersal to the SH, while one, currently a particularly common species in the Holarctic ( Polytrichum juniperinum ), diversified in the Antarctic region and from here colonized both the Holarctic and other SH regions. Our findings suggest long-distance dispersal as the driver of bipolar disjunctions. We find such inter-hemispheric dispersals are rare, occurring on multi-million-year timescales. High-altitude tropical populations did not act as trans-equatorial ‘stepping-stones’, but rather were derived from later dispersal events. All arrivals to the Antarctic region occurred well before the Last Glacial Maximum and previous glaciations, suggesting that, despite the harsh climate during these past glacial maxima, plants have had a much longer presence in this southern region than previously thought. Article in Journal/Newspaper Antarc* Antarctic Stepping Stones The Royal Society Royal Society Open Science 4 7 170147 |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
A bipolar disjunction is an extreme, yet common, biogeographic pattern in non-vascular plants, yet its underlying mechanisms (vicariance or long-distance dispersal), origin and timing remain poorly understood. Here, combining a large-scale population dataset and multiple dating analyses, we examine the biogeography of four bipolar Polytrichales mosses, common to the Holarctic (temperate and polar Northern Hemisphere regions) and the Antarctic region (Antarctic, sub-Antarctic, southern South America) and other Southern Hemisphere (SH) regions. Our data reveal contrasting patterns, for three species were of Holarctic origin, with subsequent dispersal to the SH, while one, currently a particularly common species in the Holarctic ( Polytrichum juniperinum ), diversified in the Antarctic region and from here colonized both the Holarctic and other SH regions. Our findings suggest long-distance dispersal as the driver of bipolar disjunctions. We find such inter-hemispheric dispersals are rare, occurring on multi-million-year timescales. High-altitude tropical populations did not act as trans-equatorial ‘stepping-stones’, but rather were derived from later dispersal events. All arrivals to the Antarctic region occurred well before the Last Glacial Maximum and previous glaciations, suggesting that, despite the harsh climate during these past glacial maxima, plants have had a much longer presence in this southern region than previously thought. |
author2 |
Natural Environment Research Council |
format |
Article in Journal/Newspaper |
author |
Biersma, E. M. Jackson, J. A. Hyvönen, J. Koskinen, S. Linse, K. Griffiths, H. Convey, P. |
spellingShingle |
Biersma, E. M. Jackson, J. A. Hyvönen, J. Koskinen, S. Linse, K. Griffiths, H. Convey, P. Global biogeographic patterns in bipolar moss species |
author_facet |
Biersma, E. M. Jackson, J. A. Hyvönen, J. Koskinen, S. Linse, K. Griffiths, H. Convey, P. |
author_sort |
Biersma, E. M. |
title |
Global biogeographic patterns in bipolar moss species |
title_short |
Global biogeographic patterns in bipolar moss species |
title_full |
Global biogeographic patterns in bipolar moss species |
title_fullStr |
Global biogeographic patterns in bipolar moss species |
title_full_unstemmed |
Global biogeographic patterns in bipolar moss species |
title_sort |
global biogeographic patterns in bipolar moss species |
publisher |
The Royal Society |
publishDate |
2017 |
url |
http://dx.doi.org/10.1098/rsos.170147 https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.170147 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsos.170147 |
genre |
Antarc* Antarctic Stepping Stones |
genre_facet |
Antarc* Antarctic Stepping Stones |
op_source |
Royal Society Open Science volume 4, issue 7, page 170147 ISSN 2054-5703 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rsos.170147 |
container_title |
Royal Society Open Science |
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4 |
container_issue |
7 |
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170147 |
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1810491113865216000 |