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...
Published in: | Molecular Ecology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2016
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Online Access: | https://pure.au.dk/portal/en/publications/f4473c7c-9747-45a1-94fc-15eadfd3af1a https://doi.org/10.1111/mec.13843 |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/f4473c7c-9747-45a1-94fc-15eadfd3af1a 2024-01-14T10:03:14+01:00 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 Juergens, Klaus Jeppesen, Erik De Meester, Luc 2016-12 https://pure.au.dk/portal/en/publications/f4473c7c-9747-45a1-94fc-15eadfd3af1a https://doi.org/10.1111/mec.13843 eng eng https://pure.au.dk/portal/en/publications/f4473c7c-9747-45a1-94fc-15eadfd3af1a info:eu-repo/semantics/restrictedAccess Haileselasie , T H , Mergeay , J , Weider , L J , Sommaruga , R , Davidson , T A , Meerhoff , M , Arndt , H , Juergens , K , Jeppesen , E & De Meester , L 2016 , ' Environment not dispersal limitation drives clonal composition of Arctic Daphnia in a recently deglaciated area ' , Molecular Ecology , vol. 25 , no. 23 , pp. 5830-5842 . https://doi.org/10.1111/mec.13843 climate change colonization founder effect isolation-by-colonization isolation-by-dispersal limitation landscape genetics WEST GREENLAND POPULATION-STRUCTURE NEIGHBOR MATRICES AQUATIC ORGANISMS JAKOBSHAVN ISBRAE TROPICAL ANDES LIFE-HISTORY SPECIES DATA GENE FLOW PULEX article 2016 ftuniaarhuspubl https://doi.org/10.1111/mec.13843 2023-12-20T23:59:25Z 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 (R-adj(2) = 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 Arctic Arctic Climate change Greenland Ice Sheet Jakobshavn Aarhus University: Research Arctic Greenland Molecular Ecology 25 23 5830 5842 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
climate change colonization founder effect isolation-by-colonization isolation-by-dispersal limitation landscape genetics WEST GREENLAND POPULATION-STRUCTURE NEIGHBOR MATRICES AQUATIC ORGANISMS JAKOBSHAVN ISBRAE TROPICAL ANDES LIFE-HISTORY SPECIES DATA GENE FLOW PULEX |
spellingShingle |
climate change colonization founder effect isolation-by-colonization isolation-by-dispersal limitation landscape genetics WEST GREENLAND POPULATION-STRUCTURE NEIGHBOR MATRICES AQUATIC ORGANISMS JAKOBSHAVN ISBRAE TROPICAL ANDES LIFE-HISTORY SPECIES DATA GENE FLOW PULEX Haileselasie, Tsegazeabe H. Mergeay, Joachim Weider, Lawrence J. Sommaruga, Ruben Davidson, Thomas A. Meerhoff, Mariana Arndt, Hartmut Juergens, Klaus Jeppesen, Erik De Meester, Luc Environment not dispersal limitation drives clonal composition of Arctic Daphnia in a recently deglaciated area |
topic_facet |
climate change colonization founder effect isolation-by-colonization isolation-by-dispersal limitation landscape genetics WEST GREENLAND POPULATION-STRUCTURE NEIGHBOR MATRICES AQUATIC ORGANISMS JAKOBSHAVN ISBRAE TROPICAL ANDES LIFE-HISTORY SPECIES DATA GENE FLOW PULEX |
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 (R-adj(2) = 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 |
Article in Journal/Newspaper |
author |
Haileselasie, Tsegazeabe H. Mergeay, Joachim Weider, Lawrence J. Sommaruga, Ruben Davidson, Thomas A. Meerhoff, Mariana Arndt, Hartmut Juergens, Klaus Jeppesen, Erik De Meester, Luc |
author_facet |
Haileselasie, Tsegazeabe H. Mergeay, Joachim Weider, Lawrence J. Sommaruga, Ruben Davidson, Thomas A. Meerhoff, Mariana Arndt, Hartmut Juergens, 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 |
publishDate |
2016 |
url |
https://pure.au.dk/portal/en/publications/f4473c7c-9747-45a1-94fc-15eadfd3af1a https://doi.org/10.1111/mec.13843 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Arctic Climate change Greenland Ice Sheet Jakobshavn |
genre_facet |
Arctic Arctic Climate change Greenland Ice Sheet Jakobshavn |
op_source |
Haileselasie , T H , Mergeay , J , Weider , L J , Sommaruga , R , Davidson , T A , Meerhoff , M , Arndt , H , Juergens , K , Jeppesen , E & De Meester , L 2016 , ' Environment not dispersal limitation drives clonal composition of Arctic Daphnia in a recently deglaciated area ' , Molecular Ecology , vol. 25 , no. 23 , pp. 5830-5842 . https://doi.org/10.1111/mec.13843 |
op_relation |
https://pure.au.dk/portal/en/publications/f4473c7c-9747-45a1-94fc-15eadfd3af1a |
op_rights |
info:eu-repo/semantics/restrictedAccess |
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_ |
1788058141122887680 |