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...
Published in: | Polar Biology |
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Language: | English |
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Springer Science and Business Media Deutschland GmbH
2023
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Online Access: | https://hdl.handle.net/10281/435721 https://doi.org/10.1007/s00300-023-03170-4 |
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ftunivmilanobic:oai:boa.unimib.it:10281/435721 2024-04-14T08:04:16+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. Zawierucha, K Kasparova, E Mcinnes, S Buda, J Ambrosini, R Devetter, M Ficetola, G Franzetti, A Takeuchi, N Horna, P Jaromerska, T Ono, M Sabacka, M Janko, K 2023 STAMPA https://hdl.handle.net/10281/435721 https://doi.org/10.1007/s00300-023-03170-4 eng eng Springer Science and Business Media Deutschland GmbH country:DE 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/10281/435721 doi:10.1007/s00300-023-03170-4 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85167736517 Biogeography Cryoconite hole Disjunct distribution Glacier Long-range dispersal Tardigrada info:eu-repo/semantics/article 2023 ftunivmilanobic https://doi.org/10.1007/s00300-023-03170-4 2024-03-21T16:20:27Z 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 densities. Article in Journal/Newspaper Antarc* Antarctic Arctic glacier Svalbard Tardigrade Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive) Antarctic Arctic Ebba ENVELOPE(139.583,139.583,-66.575,-66.575) Svalbard Water Bears ENVELOPE(-54.431,-54.431,49.600,49.600) Polar Biology 46 10 1011 1027 |
institution |
Open Polar |
collection |
Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive) |
op_collection_id |
ftunivmilanobic |
language |
English |
topic |
Biogeography Cryoconite hole Disjunct distribution Glacier Long-range dispersal Tardigrada |
spellingShingle |
Biogeography Cryoconite hole Disjunct distribution Glacier Long-range dispersal Tardigrada 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 |
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 densities. |
author2 |
Zawierucha, K Kasparova, E Mcinnes, S Buda, J Ambrosini, R Devetter, M Ficetola, G Franzetti, A Takeuchi, N Horna, P Jaromerska, T Ono, M Sabacka, M Janko, K |
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 Science and Business Media Deutschland GmbH |
publishDate |
2023 |
url |
https://hdl.handle.net/10281/435721 https://doi.org/10.1007/s00300-023-03170-4 |
long_lat |
ENVELOPE(139.583,139.583,-66.575,-66.575) ENVELOPE(-54.431,-54.431,49.600,49.600) |
geographic |
Antarctic Arctic Ebba Svalbard Water Bears |
geographic_facet |
Antarctic Arctic Ebba Svalbard Water Bears |
genre |
Antarc* Antarctic Arctic glacier Svalbard Tardigrade |
genre_facet |
Antarc* Antarctic Arctic 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/10281/435721 doi:10.1007/s00300-023-03170-4 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85167736517 |
op_doi |
https://doi.org/10.1007/s00300-023-03170-4 |
container_title |
Polar Biology |
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46 |
container_issue |
10 |
container_start_page |
1011 |
op_container_end_page |
1027 |
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1796300723301908480 |