Environment not dispersal limitation drives clonal composition of Arctic Daphnia in a recently deglaciated area
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...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5737836/ http://www.ncbi.nlm.nih.gov/pubmed/27662259 https://doi.org/10.1111/mec.13843 |
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ftpubmed:oai:pubmedcentral.nih.gov:5737836 2023-05-15T14:58:34+02:00 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 Klaus, Jürgens Jeppesen, Erik De Meester, Luc 2016-11-18 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5737836/ http://www.ncbi.nlm.nih.gov/pubmed/27662259 https://doi.org/10.1111/mec.13843 en eng http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5737836/ http://www.ncbi.nlm.nih.gov/pubmed/27662259 http://dx.doi.org/10.1111/mec.13843 Article Text 2016 ftpubmed https://doi.org/10.1111/mec.13843 2017-12-24T01:25:23Z 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 (Radj2=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. Text Arctic Greenland Ice Sheet PubMed Central (PMC) Arctic Greenland Molecular Ecology 25 23 5830 5842 |
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Article Haileselasie, Tsegazeabe H. Mergeay, Joachim Weider, Lawrence J. Sommaruga, Ruben Davidson, Thomas A. Meerhoff, Mariana Arndt, Hartmut Klaus, Jürgens Jeppesen, Erik De Meester, Luc Environment not dispersal limitation drives clonal composition of Arctic Daphnia in a recently deglaciated area |
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Article |
description |
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 (Radj2=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. |
format |
Text |
author |
Haileselasie, Tsegazeabe H. Mergeay, Joachim Weider, Lawrence J. Sommaruga, Ruben Davidson, Thomas A. Meerhoff, Mariana Arndt, Hartmut Klaus, Jürgens Jeppesen, Erik De Meester, Luc |
author_facet |
Haileselasie, Tsegazeabe H. Mergeay, Joachim Weider, Lawrence J. Sommaruga, Ruben Davidson, Thomas A. Meerhoff, Mariana Arndt, Hartmut Klaus, Jürgens 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 |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5737836/ http://www.ncbi.nlm.nih.gov/pubmed/27662259 https://doi.org/10.1111/mec.13843 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Greenland Ice Sheet |
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Arctic Greenland Ice Sheet |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5737836/ http://www.ncbi.nlm.nih.gov/pubmed/27662259 http://dx.doi.org/10.1111/mec.13843 |
op_doi |
https://doi.org/10.1111/mec.13843 |
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Molecular Ecology |
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25 |
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23 |
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5830 |
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5842 |
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1766330707062292480 |