Cryophilic Tardigrada have disjunct and bipolar distribution and establish long-term stable, low-density demes
Glaciers are inhabited by various cryophilic organisms ranging from single celled to multicellular, like Tardigrada (water bears). Owing to their scattered distribution, glaciers represent extremely fragmented habitats, and it remains unclear how their inhabitants survive and disperse among such iso...
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Springer Nature
2023
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Online Access: | https://hdl.handle.net/2434/1022411 https://doi.org/10.1007/s00300-023-03170-4 |
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ftunivmilanoair:oai:air.unimi.it:2434/1022411 2024-04-21T07:50:42+00:00 Cryophilic Tardigrada have disjunct and bipolar distribution and establish long-term stable, low-density demes Zawierucha K. Kasparova E. S. McInnes S. Buda J. Ambrosini R. Devetter M. Ficetola G. F. Franzetti A. Takeuchi N. Horna P. Jaromerska T. N. Ono M. Sabacka M. Janko K. K. Zawierucha E.S. Kasparova S. Mcinne J. Buda R. Ambrosini M. Devetter G.F. Ficetola A. Franzetti N. Takeuchi P. Horna T.N. Jaromerska M. Ono M. Sabacka K. Janko 2023 https://hdl.handle.net/2434/1022411 https://doi.org/10.1007/s00300-023-03170-4 eng eng Springer Nature info:eu-repo/semantics/altIdentifier/wos/WOS:001046604600002 volume:46 issue:10 firstpage:1011 lastpage:1027 numberofpages:17 journal:POLAR BIOLOGY https://hdl.handle.net/2434/1022411 doi:10.1007/s00300-023-03170-4 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85167736517 info:eu-repo/semantics/openAccess Biogeography Cryoconite hole Disjunct distribution Glacier Long-range dispersal Tardigrada Settore BIO/05 - Zoologia Settore BIO/07 - Ecologia info:eu-repo/semantics/article 2023 ftunivmilanoair https://doi.org/10.1007/s00300-023-03170-4 2024-03-27T16:18:05Z Glaciers are inhabited by various cryophilic organisms ranging from single celled to multicellular, like Tardigrada (water bears). Owing to their scattered distribution, glaciers represent extremely fragmented habitats, and it remains unclear how their inhabitants survive and disperse among such isolated patches. This study investigates the biogeography of the tardigrade genus Cryoconicus, whose distribution, population stability, and interregional connectivity are examined by screening the collections from ~ 60 glaciers worldwide and by a phylogeographic analysis. We found that two Cryoconicus species occur at low densities on two Arctic glaciers in Svalbard, far from their previously reported Antarctic and Central Asian ranges. Screening of worldwide databases and DNA metabarcoding indicated that these species are absent or rare in the intermediate areas, suggesting large disjunctions in their ranges. In particular, the genetic data and multiyear resampling showed that Cryoconicus kaczmareki established a stable population on the Ebba Glacier (Svalbard), which has been isolated from its Asian core range since before the last glacial maximum. Our findings suggest that glacial invertebrates may possess wide yet largely disjunctive ranges. Interpolar- or intercontinental-scale movements of cryophilic meiofauna may occur, but migration connectivity is not sufficient to mitigate the differentiation of the local population. Revealed biogeographic patterns further demonstrate that inhabitants of extreme environments may establish isolated and highly fragmented populations that persist long term, even if at very low densitie Article in Journal/Newspaper Antarc* Antarctic glacier Svalbard Tardigrade The University of Milan: Archivio Istituzionale della Ricerca (AIR) Polar Biology 46 10 1011 1027 |
institution |
Open Polar |
collection |
The University of Milan: Archivio Istituzionale della Ricerca (AIR) |
op_collection_id |
ftunivmilanoair |
language |
English |
topic |
Biogeography Cryoconite hole Disjunct distribution Glacier Long-range dispersal Tardigrada Settore BIO/05 - Zoologia Settore BIO/07 - Ecologia |
spellingShingle |
Biogeography Cryoconite hole Disjunct distribution Glacier Long-range dispersal Tardigrada Settore BIO/05 - Zoologia Settore BIO/07 - Ecologia Zawierucha K. Kasparova E. S. McInnes S. Buda J. Ambrosini R. Devetter M. Ficetola G. F. Franzetti A. Takeuchi N. Horna P. Jaromerska T. N. Ono M. Sabacka M. Janko K. Cryophilic Tardigrada have disjunct and bipolar distribution and establish long-term stable, low-density demes |
topic_facet |
Biogeography Cryoconite hole Disjunct distribution Glacier Long-range dispersal Tardigrada Settore BIO/05 - Zoologia Settore BIO/07 - Ecologia |
description |
Glaciers are inhabited by various cryophilic organisms ranging from single celled to multicellular, like Tardigrada (water bears). Owing to their scattered distribution, glaciers represent extremely fragmented habitats, and it remains unclear how their inhabitants survive and disperse among such isolated patches. This study investigates the biogeography of the tardigrade genus Cryoconicus, whose distribution, population stability, and interregional connectivity are examined by screening the collections from ~ 60 glaciers worldwide and by a phylogeographic analysis. We found that two Cryoconicus species occur at low densities on two Arctic glaciers in Svalbard, far from their previously reported Antarctic and Central Asian ranges. Screening of worldwide databases and DNA metabarcoding indicated that these species are absent or rare in the intermediate areas, suggesting large disjunctions in their ranges. In particular, the genetic data and multiyear resampling showed that Cryoconicus kaczmareki established a stable population on the Ebba Glacier (Svalbard), which has been isolated from its Asian core range since before the last glacial maximum. Our findings suggest that glacial invertebrates may possess wide yet largely disjunctive ranges. Interpolar- or intercontinental-scale movements of cryophilic meiofauna may occur, but migration connectivity is not sufficient to mitigate the differentiation of the local population. Revealed biogeographic patterns further demonstrate that inhabitants of extreme environments may establish isolated and highly fragmented populations that persist long term, even if at very low densitie |
author2 |
K. Zawierucha E.S. Kasparova S. Mcinne J. Buda R. Ambrosini M. Devetter G.F. Ficetola A. Franzetti N. Takeuchi P. Horna T.N. Jaromerska M. Ono M. Sabacka K. Janko |
format |
Article in Journal/Newspaper |
author |
Zawierucha K. Kasparova E. S. McInnes S. Buda J. Ambrosini R. Devetter M. Ficetola G. F. Franzetti A. Takeuchi N. Horna P. Jaromerska T. N. Ono M. Sabacka M. Janko K. |
author_facet |
Zawierucha K. Kasparova E. S. McInnes S. Buda J. Ambrosini R. Devetter M. Ficetola G. F. Franzetti A. Takeuchi N. Horna P. Jaromerska T. N. Ono M. Sabacka M. Janko K. |
author_sort |
Zawierucha K. |
title |
Cryophilic Tardigrada have disjunct and bipolar distribution and establish long-term stable, low-density demes |
title_short |
Cryophilic Tardigrada have disjunct and bipolar distribution and establish long-term stable, low-density demes |
title_full |
Cryophilic Tardigrada have disjunct and bipolar distribution and establish long-term stable, low-density demes |
title_fullStr |
Cryophilic Tardigrada have disjunct and bipolar distribution and establish long-term stable, low-density demes |
title_full_unstemmed |
Cryophilic Tardigrada have disjunct and bipolar distribution and establish long-term stable, low-density demes |
title_sort |
cryophilic tardigrada have disjunct and bipolar distribution and establish long-term stable, low-density demes |
publisher |
Springer Nature |
publishDate |
2023 |
url |
https://hdl.handle.net/2434/1022411 https://doi.org/10.1007/s00300-023-03170-4 |
genre |
Antarc* Antarctic glacier Svalbard Tardigrade |
genre_facet |
Antarc* Antarctic glacier Svalbard Tardigrade |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:001046604600002 volume:46 issue:10 firstpage:1011 lastpage:1027 numberofpages:17 journal:POLAR BIOLOGY https://hdl.handle.net/2434/1022411 doi:10.1007/s00300-023-03170-4 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85167736517 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s00300-023-03170-4 |
container_title |
Polar Biology |
container_volume |
46 |
container_issue |
10 |
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1011 |
op_container_end_page |
1027 |
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