Environment not dispersal limitation drives clonal composition of Arctic Daphnia in a recently deglaciated area
Abstract One of the most prominent manifestations of the ongoing climate warming is the retreat of glaciers and ice sheets around the world. Retreating glaciers result in the formation of new ponds and lakes, which are available for colonization. The gradual appearance of these new habitat patches a...
Published in: | Molecular Ecology |
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crwiley:10.1111/mec.13843 2024-09-15T18:09:56+00:00 Environment not dispersal limitation drives clonal composition of Arctic Daphnia in a recently deglaciated area Haileselasie, Tsegazeabe H. Mergeay, Joachim Weider, Lawrence J. Sommaruga, Ruben Davidson, Thomas A. Meerhoff, Mariana Arndt, Hartmut Jürgens, Klaus Jeppesen, Erik De Meester, Luc Carlsbergfondet Austrian Science Fund KU Leuven Research Fund Excellence Center KU Leuven Research Fund Fellowship Franqui Research Professor Fellowship Carlsbergfondet MARS Project (Managing Aquatic Ecosystems and Water Resources under Multiple Stress) Funded under the 7th EU Framework Programme Theme 6 (Environment Including Climate Change) Austrian Science Fund 2016 http://dx.doi.org/10.1111/mec.13843 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.13843 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.13843 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1.1 Molecular Ecology volume 25, issue 23, page 5830-5842 ISSN 0962-1083 1365-294X journal-article 2016 crwiley https://doi.org/10.1111/mec.13843 2024-08-30T04:09:41Z Abstract One of the most prominent manifestations of the ongoing climate warming is the retreat of glaciers and ice sheets around the world. Retreating glaciers result in the formation of new ponds and lakes, which are available for colonization. The gradual appearance of these new habitat patches allows us to determine to what extent the composition of asexual Daphnia (water flea) populations is affected by environmental drivers vs. dispersal limitation. Here, we used a landscape genetics approach to assess the processes structuring the clonal composition of species in the D. pulex species complex that have colonized periglacial habitats created by ice‐sheet retreat in western Greenland. We analysed 61 populations from a young (<50 years) and an old cluster (>150 years) of lakes and ponds. We identified 42 asexual clones that varied widely in spatial distribution. Beta‐diversity was higher among older than among younger systems. Lineage sorting by the environment explained 14% of the variation in clonal composition whereas the pure effect of geographical distance was very small and statistically insignificant ( = 0.010, P = 0.085). Dispersal limitation did not seem important, even among young habitat patches. The observation of several tens of clones colonizing the area combined with environmentally driven clonal composition of populations illustrates that population assembly of asexual species in the Arctic is structured by environmental gradients reflecting differences in the ecology of clones. Article in Journal/Newspaper Greenland Ice Sheet Wiley Online Library Molecular Ecology 25 23 5830 5842 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract One of the most prominent manifestations of the ongoing climate warming is the retreat of glaciers and ice sheets around the world. Retreating glaciers result in the formation of new ponds and lakes, which are available for colonization. The gradual appearance of these new habitat patches allows us to determine to what extent the composition of asexual Daphnia (water flea) populations is affected by environmental drivers vs. dispersal limitation. Here, we used a landscape genetics approach to assess the processes structuring the clonal composition of species in the D. pulex species complex that have colonized periglacial habitats created by ice‐sheet retreat in western Greenland. We analysed 61 populations from a young (<50 years) and an old cluster (>150 years) of lakes and ponds. We identified 42 asexual clones that varied widely in spatial distribution. Beta‐diversity was higher among older than among younger systems. Lineage sorting by the environment explained 14% of the variation in clonal composition whereas the pure effect of geographical distance was very small and statistically insignificant ( = 0.010, P = 0.085). Dispersal limitation did not seem important, even among young habitat patches. The observation of several tens of clones colonizing the area combined with environmentally driven clonal composition of populations illustrates that population assembly of asexual species in the Arctic is structured by environmental gradients reflecting differences in the ecology of clones. |
author2 |
Carlsbergfondet Austrian Science Fund KU Leuven Research Fund Excellence Center KU Leuven Research Fund Fellowship Franqui Research Professor Fellowship Carlsbergfondet MARS Project (Managing Aquatic Ecosystems and Water Resources under Multiple Stress) Funded under the 7th EU Framework Programme Theme 6 (Environment Including Climate Change) Austrian Science Fund |
format |
Article in Journal/Newspaper |
author |
Haileselasie, Tsegazeabe H. Mergeay, Joachim Weider, Lawrence J. Sommaruga, Ruben Davidson, Thomas A. Meerhoff, Mariana Arndt, Hartmut Jürgens, Klaus Jeppesen, Erik De Meester, Luc |
spellingShingle |
Haileselasie, Tsegazeabe H. Mergeay, Joachim Weider, Lawrence J. Sommaruga, Ruben Davidson, Thomas A. Meerhoff, Mariana Arndt, Hartmut Jürgens, Klaus Jeppesen, Erik De Meester, Luc Environment not dispersal limitation drives clonal composition of Arctic Daphnia in a recently deglaciated area |
author_facet |
Haileselasie, Tsegazeabe H. Mergeay, Joachim Weider, Lawrence J. Sommaruga, Ruben Davidson, Thomas A. Meerhoff, Mariana Arndt, Hartmut Jürgens, Klaus Jeppesen, Erik De Meester, Luc |
author_sort |
Haileselasie, Tsegazeabe H. |
title |
Environment not dispersal limitation drives clonal composition of Arctic Daphnia in a recently deglaciated area |
title_short |
Environment not dispersal limitation drives clonal composition of Arctic Daphnia in a recently deglaciated area |
title_full |
Environment not dispersal limitation drives clonal composition of Arctic Daphnia in a recently deglaciated area |
title_fullStr |
Environment not dispersal limitation drives clonal composition of Arctic Daphnia in a recently deglaciated area |
title_full_unstemmed |
Environment not dispersal limitation drives clonal composition of Arctic Daphnia in a recently deglaciated area |
title_sort |
environment not dispersal limitation drives clonal composition of arctic daphnia in a recently deglaciated area |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1111/mec.13843 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.13843 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.13843 |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_source |
Molecular Ecology volume 25, issue 23, page 5830-5842 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor http://doi.wiley.com/10.1002/tdm_license_1.1 |
op_doi |
https://doi.org/10.1111/mec.13843 |
container_title |
Molecular Ecology |
container_volume |
25 |
container_issue |
23 |
container_start_page |
5830 |
op_container_end_page |
5842 |
_version_ |
1810447542295461888 |