Data_Sheet_1_Survivors and colonizers: Contrasting biogeographic histories reconciled in the Antarctic freshwater copepod Boeckella poppei.docx
Two main hypotheses have been proposed to explain the contemporary distribution of Antarctic terrestrial biota. We assess whether the current distribution of maritime Antarctic populations of the freshwater copepod Boeckella poppei is the result of (1) a post-Last Glacial Maximum (LGM) colonization,...
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ftfrontimediafig:oai:figshare.com:article/21654404 2024-09-15T17:44:31+00:00 Data_Sheet_1_Survivors and colonizers: Contrasting biogeographic histories reconciled in the Antarctic freshwater copepod Boeckella poppei.docx Claudia S. Maturana Elisabeth M. Biersma Angie Díaz Claudio González-Wevar Tamara Contador Peter Convey Jennifer A. Jackson Elie Poulin 2022-12-01T05:35:32Z https://doi.org/10.3389/fevo.2022.1012852.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Survivors_and_colonizers_Contrasting_biogeographic_histories_reconciled_in_the_Antarctic_freshwater_copepod_Boeckella_poppei_docx/21654404 unknown doi:10.3389/fevo.2022.1012852.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Survivors_and_colonizers_Contrasting_biogeographic_histories_reconciled_in_the_Antarctic_freshwater_copepod_Boeckella_poppei_docx/21654404 CC BY 4.0 Evolutionary Biology Ecology Invasive Species Ecology Landscape Ecology Conservation and Biodiversity Behavioural Ecology Community Ecology (excl. Invasive Species Ecology) Ecological Physiology Freshwater Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Population Ecology Terrestrial Ecology Antarctic-Magellan connection centropagidae last glacial maximum monopolization hypothesis phylogeography refugia Dataset 2022 ftfrontimediafig https://doi.org/10.3389/fevo.2022.1012852.s001 2024-08-19T06:20:00Z Two main hypotheses have been proposed to explain the contemporary distribution of Antarctic terrestrial biota. We assess whether the current distribution of maritime Antarctic populations of the freshwater copepod Boeckella poppei is the result of (1) a post-Last Glacial Maximum (LGM) colonization, or whether (2) the species survived in regional glacial refugia throughout the LGM and earlier glaciations. Using 438 specimens from 34 different sampling sites across Southern South America, South Georgia, South Orkney Islands, South Shetland Islands, and the Antarctic Peninsula, we analyzed mitochondrial and nuclear sequences to uncover patterns of genetic diversity and population structure. We also performed median-joining haplotype network, phylogenetic reconstruction, and divergence time analyses. Finally, we evaluated past demographic changes and historical scenarios using the Approximate Bayesian Computation (ABC) method. Our data support the existence of two clades with different and contrasting biogeographic histories. The first clade has been present in maritime Antarctica since at least the mid-Pleistocene, with the South Orkney Islands the most likely refugial area. The second clade has a broader distribution including southern South America, South Georgia, South Shetland Islands, and the Antarctic Peninsula. The ABC method identified long-distance dispersal (LDD) colonization event(s) from southern South America to South Georgia and the maritime Antarctic after the LGM deglaciation, supporting more recent colonization of Antarctic locations. The current Antarctic and sub-Antarctic distribution of B. poppei is likely derived from two independent biogeographic events. The combination of both (1) post-LGM colonization from southern South America and (2) longer-term persistence in in situ regional refugia throughout glacial periods challenges current understanding of the biogeographic history of Antarctic freshwater biota. Re-colonization of ice-impacted Antarctic areas would have occurred following a LDD ... Dataset Antarc* Antarctic Antarctic Peninsula Antarctica South Orkney Islands South Shetland Islands Frontiers: Figshare |
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Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Evolutionary Biology Ecology Invasive Species Ecology Landscape Ecology Conservation and Biodiversity Behavioural Ecology Community Ecology (excl. Invasive Species Ecology) Ecological Physiology Freshwater Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Population Ecology Terrestrial Ecology Antarctic-Magellan connection centropagidae last glacial maximum monopolization hypothesis phylogeography refugia |
spellingShingle |
Evolutionary Biology Ecology Invasive Species Ecology Landscape Ecology Conservation and Biodiversity Behavioural Ecology Community Ecology (excl. Invasive Species Ecology) Ecological Physiology Freshwater Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Population Ecology Terrestrial Ecology Antarctic-Magellan connection centropagidae last glacial maximum monopolization hypothesis phylogeography refugia Claudia S. Maturana Elisabeth M. Biersma Angie Díaz Claudio González-Wevar Tamara Contador Peter Convey Jennifer A. Jackson Elie Poulin Data_Sheet_1_Survivors and colonizers: Contrasting biogeographic histories reconciled in the Antarctic freshwater copepod Boeckella poppei.docx |
topic_facet |
Evolutionary Biology Ecology Invasive Species Ecology Landscape Ecology Conservation and Biodiversity Behavioural Ecology Community Ecology (excl. Invasive Species Ecology) Ecological Physiology Freshwater Ecology Marine and Estuarine Ecology (incl. Marine Ichthyology) Population Ecology Terrestrial Ecology Antarctic-Magellan connection centropagidae last glacial maximum monopolization hypothesis phylogeography refugia |
description |
Two main hypotheses have been proposed to explain the contemporary distribution of Antarctic terrestrial biota. We assess whether the current distribution of maritime Antarctic populations of the freshwater copepod Boeckella poppei is the result of (1) a post-Last Glacial Maximum (LGM) colonization, or whether (2) the species survived in regional glacial refugia throughout the LGM and earlier glaciations. Using 438 specimens from 34 different sampling sites across Southern South America, South Georgia, South Orkney Islands, South Shetland Islands, and the Antarctic Peninsula, we analyzed mitochondrial and nuclear sequences to uncover patterns of genetic diversity and population structure. We also performed median-joining haplotype network, phylogenetic reconstruction, and divergence time analyses. Finally, we evaluated past demographic changes and historical scenarios using the Approximate Bayesian Computation (ABC) method. Our data support the existence of two clades with different and contrasting biogeographic histories. The first clade has been present in maritime Antarctica since at least the mid-Pleistocene, with the South Orkney Islands the most likely refugial area. The second clade has a broader distribution including southern South America, South Georgia, South Shetland Islands, and the Antarctic Peninsula. The ABC method identified long-distance dispersal (LDD) colonization event(s) from southern South America to South Georgia and the maritime Antarctic after the LGM deglaciation, supporting more recent colonization of Antarctic locations. The current Antarctic and sub-Antarctic distribution of B. poppei is likely derived from two independent biogeographic events. The combination of both (1) post-LGM colonization from southern South America and (2) longer-term persistence in in situ regional refugia throughout glacial periods challenges current understanding of the biogeographic history of Antarctic freshwater biota. Re-colonization of ice-impacted Antarctic areas would have occurred following a LDD ... |
format |
Dataset |
author |
Claudia S. Maturana Elisabeth M. Biersma Angie Díaz Claudio González-Wevar Tamara Contador Peter Convey Jennifer A. Jackson Elie Poulin |
author_facet |
Claudia S. Maturana Elisabeth M. Biersma Angie Díaz Claudio González-Wevar Tamara Contador Peter Convey Jennifer A. Jackson Elie Poulin |
author_sort |
Claudia S. Maturana |
title |
Data_Sheet_1_Survivors and colonizers: Contrasting biogeographic histories reconciled in the Antarctic freshwater copepod Boeckella poppei.docx |
title_short |
Data_Sheet_1_Survivors and colonizers: Contrasting biogeographic histories reconciled in the Antarctic freshwater copepod Boeckella poppei.docx |
title_full |
Data_Sheet_1_Survivors and colonizers: Contrasting biogeographic histories reconciled in the Antarctic freshwater copepod Boeckella poppei.docx |
title_fullStr |
Data_Sheet_1_Survivors and colonizers: Contrasting biogeographic histories reconciled in the Antarctic freshwater copepod Boeckella poppei.docx |
title_full_unstemmed |
Data_Sheet_1_Survivors and colonizers: Contrasting biogeographic histories reconciled in the Antarctic freshwater copepod Boeckella poppei.docx |
title_sort |
data_sheet_1_survivors and colonizers: contrasting biogeographic histories reconciled in the antarctic freshwater copepod boeckella poppei.docx |
publishDate |
2022 |
url |
https://doi.org/10.3389/fevo.2022.1012852.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Survivors_and_colonizers_Contrasting_biogeographic_histories_reconciled_in_the_Antarctic_freshwater_copepod_Boeckella_poppei_docx/21654404 |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica South Orkney Islands South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica South Orkney Islands South Shetland Islands |
op_relation |
doi:10.3389/fevo.2022.1012852.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Survivors_and_colonizers_Contrasting_biogeographic_histories_reconciled_in_the_Antarctic_freshwater_copepod_Boeckella_poppei_docx/21654404 |
op_rights |
CC BY 4.0 |
op_doi |
https://doi.org/10.3389/fevo.2022.1012852.s001 |
_version_ |
1810492150924705792 |