A hole in the nematosphere: tardigrades and rotifers dominate the cryoconite hole environment, whereas nematodes are missing
The worldwide distribution of microinvertebrates on glaciers, the coldest biome, is poorly known. Owing to their tolerance to hostile conditions, small size and dispersal abilities, nematodes, tardigrades and rotifers are considered cosmopolitan and together inhabit various ecosystems. In this study...
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Online Access: | https://hdl.handle.net/11590/468644 https://doi.org/10.1111/jzo.12832 |
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ftunivroma3iris:oai:iris.uniroma3.it:11590/468644 2024-04-28T08:02:40+00:00 A hole in the nematosphere: tardigrades and rotifers dominate the cryoconite hole environment, whereas nematodes are missing Zawierucha, K. Porazinska, D. L. Ficetola, G. F. Ambrosini, R. Baccolo, G. Buda, J. Ceballos, J. L. Devetter, M. Dial, R. Franzetti, A. Fuglewicz, U. Gielly, L. Łokas, E. Janko, K. Novotna Jaromerska, T. Kościński, A. Kozłowska, A. Ono, M. Parnikoza, I. Pittino, F. Poniecka, E. Sommers, P. Schmidt, S. K. Shain, D. Sikorska, S. Uetake, J. Takeuchi, N. Zawierucha, K. Porazinska, D. L. Ficetola, G. F. Ambrosini, R. Baccolo, G. Buda, J. Ceballos, J. L. Devetter, M. Dial, R. Franzetti, A. Fuglewicz, U. Gielly, L. Łokas, E. Janko, K. Novotna Jaromerska, T. Kościński, A. Kozłowska, A. Ono, M. Parnikoza, I. Pittino, F. Poniecka, E. Sommers, P. Schmidt, S. K. Shain, D. Sikorska, S. Uetake, J. Takeuchi, N. 2021 https://hdl.handle.net/11590/468644 https://doi.org/10.1111/jzo.12832 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000570880300001 volume:313 issue:1 firstpage:18 lastpage:36 numberofpages:19 journal:JOURNAL OF ZOOLOGY https://hdl.handle.net/11590/468644 doi:10.1111/jzo.12832 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85091000696 ecological selection extremophile distribution glacier Nematoda psychrophile Rotifera Tardigrada info:eu-repo/semantics/article 2021 ftunivroma3iris https://doi.org/10.1111/jzo.12832 2024-04-02T16:59:54Z The worldwide distribution of microinvertebrates on glaciers, the coldest biome, is poorly known. Owing to their tolerance to hostile conditions, small size and dispersal abilities, nematodes, tardigrades and rotifers are considered cosmopolitan and together inhabit various ecosystems. In this study, we investigated their global distribution in cryoconite holes - a type of freshwater reservoir forming directly in the glacial ice that creates biodiversity hotspots on glaciers. We analysed cryoconite samples (using classical microscopic observations and environmental DNA metabarcoding) from 42 glaciers located around the world (the Arctic, Subarctic, Scandinavia, the Alps, the Caucasus, Siberia, Central Asia, Africa, South America and Antarctica), as well as using literature data. Samples from Antarctic, Karakoram and the Alps were analysed using next-generation sequencing (NGS) and classical observations under microscopes, while all other samples were analysed by microscope alone. Three general outcomes were found: (1) tardigrades and rotifers represented the most common invertebrates in cryoconite holes; (2) tardigrades and rotifers often coexisted together, with one or the other dominating, but the dominant taxon varied by region or by glacier; (3) nematodes - the most abundant, hyperdiverse and widespread metazoans on Earth, including in environments surrounding and seeding glacial surfaces - were consistently absent from cryoconite holes. Despite the general similarity of environmental conditions in cryoconite holes, the distribution of tardigrades and rotifers differed among glaciers, but not in any predictable way, suggesting that their distribution mostly depended on the random dispersal, extreme changes of supraglacial zone or competition. Although nematodes have been found in supraglacial habitats, cryoconite hole environments seem not to provide the necessary conditions for their growth and reproduction. Lack of physiological adaptations to permanently low temperatures (similar to 0 degrees C) and ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Arctic Subarctic Siberia Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre) Journal of Zoology 313 1 18 36 |
institution |
Open Polar |
collection |
Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre) |
op_collection_id |
ftunivroma3iris |
language |
English |
topic |
ecological selection extremophile distribution glacier Nematoda psychrophile Rotifera Tardigrada |
spellingShingle |
ecological selection extremophile distribution glacier Nematoda psychrophile Rotifera Tardigrada Zawierucha, K. Porazinska, D. L. Ficetola, G. F. Ambrosini, R. Baccolo, G. Buda, J. Ceballos, J. L. Devetter, M. Dial, R. Franzetti, A. Fuglewicz, U. Gielly, L. Łokas, E. Janko, K. Novotna Jaromerska, T. Kościński, A. Kozłowska, A. Ono, M. Parnikoza, I. Pittino, F. Poniecka, E. Sommers, P. Schmidt, S. K. Shain, D. Sikorska, S. Uetake, J. Takeuchi, N. A hole in the nematosphere: tardigrades and rotifers dominate the cryoconite hole environment, whereas nematodes are missing |
topic_facet |
ecological selection extremophile distribution glacier Nematoda psychrophile Rotifera Tardigrada |
description |
The worldwide distribution of microinvertebrates on glaciers, the coldest biome, is poorly known. Owing to their tolerance to hostile conditions, small size and dispersal abilities, nematodes, tardigrades and rotifers are considered cosmopolitan and together inhabit various ecosystems. In this study, we investigated their global distribution in cryoconite holes - a type of freshwater reservoir forming directly in the glacial ice that creates biodiversity hotspots on glaciers. We analysed cryoconite samples (using classical microscopic observations and environmental DNA metabarcoding) from 42 glaciers located around the world (the Arctic, Subarctic, Scandinavia, the Alps, the Caucasus, Siberia, Central Asia, Africa, South America and Antarctica), as well as using literature data. Samples from Antarctic, Karakoram and the Alps were analysed using next-generation sequencing (NGS) and classical observations under microscopes, while all other samples were analysed by microscope alone. Three general outcomes were found: (1) tardigrades and rotifers represented the most common invertebrates in cryoconite holes; (2) tardigrades and rotifers often coexisted together, with one or the other dominating, but the dominant taxon varied by region or by glacier; (3) nematodes - the most abundant, hyperdiverse and widespread metazoans on Earth, including in environments surrounding and seeding glacial surfaces - were consistently absent from cryoconite holes. Despite the general similarity of environmental conditions in cryoconite holes, the distribution of tardigrades and rotifers differed among glaciers, but not in any predictable way, suggesting that their distribution mostly depended on the random dispersal, extreme changes of supraglacial zone or competition. Although nematodes have been found in supraglacial habitats, cryoconite hole environments seem not to provide the necessary conditions for their growth and reproduction. Lack of physiological adaptations to permanently low temperatures (similar to 0 degrees C) and ... |
author2 |
Zawierucha, K. Porazinska, D. L. Ficetola, G. F. Ambrosini, R. Baccolo, G. Buda, J. Ceballos, J. L. Devetter, M. Dial, R. Franzetti, A. Fuglewicz, U. Gielly, L. Łokas, E. Janko, K. Novotna Jaromerska, T. Kościński, A. Kozłowska, A. Ono, M. Parnikoza, I. Pittino, F. Poniecka, E. Sommers, P. Schmidt, S. K. Shain, D. Sikorska, S. Uetake, J. Takeuchi, N. |
format |
Article in Journal/Newspaper |
author |
Zawierucha, K. Porazinska, D. L. Ficetola, G. F. Ambrosini, R. Baccolo, G. Buda, J. Ceballos, J. L. Devetter, M. Dial, R. Franzetti, A. Fuglewicz, U. Gielly, L. Łokas, E. Janko, K. Novotna Jaromerska, T. Kościński, A. Kozłowska, A. Ono, M. Parnikoza, I. Pittino, F. Poniecka, E. Sommers, P. Schmidt, S. K. Shain, D. Sikorska, S. Uetake, J. Takeuchi, N. |
author_facet |
Zawierucha, K. Porazinska, D. L. Ficetola, G. F. Ambrosini, R. Baccolo, G. Buda, J. Ceballos, J. L. Devetter, M. Dial, R. Franzetti, A. Fuglewicz, U. Gielly, L. Łokas, E. Janko, K. Novotna Jaromerska, T. Kościński, A. Kozłowska, A. Ono, M. Parnikoza, I. Pittino, F. Poniecka, E. Sommers, P. Schmidt, S. K. Shain, D. Sikorska, S. Uetake, J. Takeuchi, N. |
author_sort |
Zawierucha, K. |
title |
A hole in the nematosphere: tardigrades and rotifers dominate the cryoconite hole environment, whereas nematodes are missing |
title_short |
A hole in the nematosphere: tardigrades and rotifers dominate the cryoconite hole environment, whereas nematodes are missing |
title_full |
A hole in the nematosphere: tardigrades and rotifers dominate the cryoconite hole environment, whereas nematodes are missing |
title_fullStr |
A hole in the nematosphere: tardigrades and rotifers dominate the cryoconite hole environment, whereas nematodes are missing |
title_full_unstemmed |
A hole in the nematosphere: tardigrades and rotifers dominate the cryoconite hole environment, whereas nematodes are missing |
title_sort |
hole in the nematosphere: tardigrades and rotifers dominate the cryoconite hole environment, whereas nematodes are missing |
publishDate |
2021 |
url |
https://hdl.handle.net/11590/468644 https://doi.org/10.1111/jzo.12832 |
genre |
Antarc* Antarctic Antarctica Arctic Subarctic Siberia |
genre_facet |
Antarc* Antarctic Antarctica Arctic Subarctic Siberia |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000570880300001 volume:313 issue:1 firstpage:18 lastpage:36 numberofpages:19 journal:JOURNAL OF ZOOLOGY https://hdl.handle.net/11590/468644 doi:10.1111/jzo.12832 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85091000696 |
op_doi |
https://doi.org/10.1111/jzo.12832 |
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Journal of Zoology |
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18 |
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