Fine-scale spatial heterogeneity of invertebrates within cryoconite holes
Cryoconite holes (water-filled reservoirs) are considered ecologically simple ecosystems but represent biological hotspots of biodiversity on glaciers. In order to check for fine-scale spatial distribution of metazoans on the bottom of the holes, in this study, we analysed three groups of grazing in...
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Online Access: | http://hdl.handle.net/2434/640833 https://doi.org/10.1007/s10452-019-09681-9 |
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ftunivmilanoair:oai:air.unimi.it:2434/640833 2024-02-11T09:56:25+01:00 Fine-scale spatial heterogeneity of invertebrates within cryoconite holes Zawierucha, Krzysztof Buda, Jakub Fontaneto, Diego Ambrosini, Roberto Franzetti, Andrea Wierzgoń, Mariusz Bogdziewicz, Michał K. Zawierucha J. Buda D. Fontaneto R. Ambrosini A. Franzetti M. Wierzgoń M. Bogdziewicz 2019-06 http://hdl.handle.net/2434/640833 https://doi.org/10.1007/s10452-019-09681-9 eng eng Springer info:eu-repo/semantics/altIdentifier/wos/WOS:000467538000003 volume:53 issue:2 firstpage:179 lastpage:190 numberofpages:12 journal:AQUATIC ECOLOGY http://hdl.handle.net/2434/640833 doi:10.1007/s10452-019-09681-9 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85062831105 info:eu-repo/semantics/openAccess Extreme habitat Polar and alpine ecosystem Random distribution Rotifera Supraglacial environment Tardigrada Ecology Evolution Behavior and Systematic Aquatic Science Settore BIO/05 - Zoologia Settore BIO/07 - Ecologia info:eu-repo/semantics/article 2019 ftunivmilanoair https://doi.org/10.1007/s10452-019-09681-9 2024-01-23T23:36:04Z Cryoconite holes (water-filled reservoirs) are considered ecologically simple ecosystems but represent biological hotspots of biodiversity on glaciers. In order to check for fine-scale spatial distribution of metazoans on the bottom of the holes, in this study, we analysed three groups of grazing invertebrates as a model: tardigrades, rotifers, and mites. We addressed differences within cryoconite holes comparing the distribution of invertebrates within and between separate holes and between glaciers at a worldwide scale. We divided each cryoconite hole into three sampling zones (established in relation to water flow on a glacier) and collected nine subsamples within cryoconite holes on glaciers in the Arctic (Longyearbreen), Norway (Blåisen), the Alps (Forni) and maritime Antarctic (Ecology Glacier). Generally, we found no consistent difference in sampling zones within cryoconite holes, which suggests homogeneity on the hole floors. However, we did find strong differences and high heterogeneity between subsamples, even within the same zone. Invertebrate densities ranged between 52 and 426 individuals per ml in subsamples collected from the same hole. We found from zero to four trdigrade species in the cryoconite hole on Longyearbreen. Our results show that benthic animals in cryoconite holes in various climatic zones have heterogeneous spatial distribution, even if no preference could be highlighted for upstream versus downstream areas with respect to water flow. The distribution of invertebrates may result from ecosystem disturbance by flushing water and animals’ active movement. Cryoconite holes, usually considered to be simple ecosystems, seem to be complex habitats where hidden spatial heterogeneity may affect abundance and diversity of organisms. Article in Journal/Newspaper Antarc* Antarctic Arctic glacier Longyearbreen The University of Milan: Archivio Istituzionale della Ricerca (AIR) Arctic Antarctic Norway Longyearbreen ENVELOPE(15.517,15.517,78.183,78.183) Ecology Glacier ENVELOPE(-58.476,-58.476,-62.177,-62.177) Blåisen ENVELOPE(17.844,17.844,68.352,68.352) Aquatic Ecology 53 2 179 190 |
institution |
Open Polar |
collection |
The University of Milan: Archivio Istituzionale della Ricerca (AIR) |
op_collection_id |
ftunivmilanoair |
language |
English |
topic |
Extreme habitat Polar and alpine ecosystem Random distribution Rotifera Supraglacial environment Tardigrada Ecology Evolution Behavior and Systematic Aquatic Science Settore BIO/05 - Zoologia Settore BIO/07 - Ecologia |
spellingShingle |
Extreme habitat Polar and alpine ecosystem Random distribution Rotifera Supraglacial environment Tardigrada Ecology Evolution Behavior and Systematic Aquatic Science Settore BIO/05 - Zoologia Settore BIO/07 - Ecologia Zawierucha, Krzysztof Buda, Jakub Fontaneto, Diego Ambrosini, Roberto Franzetti, Andrea Wierzgoń, Mariusz Bogdziewicz, Michał Fine-scale spatial heterogeneity of invertebrates within cryoconite holes |
topic_facet |
Extreme habitat Polar and alpine ecosystem Random distribution Rotifera Supraglacial environment Tardigrada Ecology Evolution Behavior and Systematic Aquatic Science Settore BIO/05 - Zoologia Settore BIO/07 - Ecologia |
description |
Cryoconite holes (water-filled reservoirs) are considered ecologically simple ecosystems but represent biological hotspots of biodiversity on glaciers. In order to check for fine-scale spatial distribution of metazoans on the bottom of the holes, in this study, we analysed three groups of grazing invertebrates as a model: tardigrades, rotifers, and mites. We addressed differences within cryoconite holes comparing the distribution of invertebrates within and between separate holes and between glaciers at a worldwide scale. We divided each cryoconite hole into three sampling zones (established in relation to water flow on a glacier) and collected nine subsamples within cryoconite holes on glaciers in the Arctic (Longyearbreen), Norway (Blåisen), the Alps (Forni) and maritime Antarctic (Ecology Glacier). Generally, we found no consistent difference in sampling zones within cryoconite holes, which suggests homogeneity on the hole floors. However, we did find strong differences and high heterogeneity between subsamples, even within the same zone. Invertebrate densities ranged between 52 and 426 individuals per ml in subsamples collected from the same hole. We found from zero to four trdigrade species in the cryoconite hole on Longyearbreen. Our results show that benthic animals in cryoconite holes in various climatic zones have heterogeneous spatial distribution, even if no preference could be highlighted for upstream versus downstream areas with respect to water flow. The distribution of invertebrates may result from ecosystem disturbance by flushing water and animals’ active movement. Cryoconite holes, usually considered to be simple ecosystems, seem to be complex habitats where hidden spatial heterogeneity may affect abundance and diversity of organisms. |
author2 |
K. Zawierucha J. Buda D. Fontaneto R. Ambrosini A. Franzetti M. Wierzgoń M. Bogdziewicz |
format |
Article in Journal/Newspaper |
author |
Zawierucha, Krzysztof Buda, Jakub Fontaneto, Diego Ambrosini, Roberto Franzetti, Andrea Wierzgoń, Mariusz Bogdziewicz, Michał |
author_facet |
Zawierucha, Krzysztof Buda, Jakub Fontaneto, Diego Ambrosini, Roberto Franzetti, Andrea Wierzgoń, Mariusz Bogdziewicz, Michał |
author_sort |
Zawierucha, Krzysztof |
title |
Fine-scale spatial heterogeneity of invertebrates within cryoconite holes |
title_short |
Fine-scale spatial heterogeneity of invertebrates within cryoconite holes |
title_full |
Fine-scale spatial heterogeneity of invertebrates within cryoconite holes |
title_fullStr |
Fine-scale spatial heterogeneity of invertebrates within cryoconite holes |
title_full_unstemmed |
Fine-scale spatial heterogeneity of invertebrates within cryoconite holes |
title_sort |
fine-scale spatial heterogeneity of invertebrates within cryoconite holes |
publisher |
Springer |
publishDate |
2019 |
url |
http://hdl.handle.net/2434/640833 https://doi.org/10.1007/s10452-019-09681-9 |
long_lat |
ENVELOPE(15.517,15.517,78.183,78.183) ENVELOPE(-58.476,-58.476,-62.177,-62.177) ENVELOPE(17.844,17.844,68.352,68.352) |
geographic |
Arctic Antarctic Norway Longyearbreen Ecology Glacier Blåisen |
geographic_facet |
Arctic Antarctic Norway Longyearbreen Ecology Glacier Blåisen |
genre |
Antarc* Antarctic Arctic glacier Longyearbreen |
genre_facet |
Antarc* Antarctic Arctic glacier Longyearbreen |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000467538000003 volume:53 issue:2 firstpage:179 lastpage:190 numberofpages:12 journal:AQUATIC ECOLOGY http://hdl.handle.net/2434/640833 doi:10.1007/s10452-019-09681-9 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85062831105 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s10452-019-09681-9 |
container_title |
Aquatic Ecology |
container_volume |
53 |
container_issue |
2 |
container_start_page |
179 |
op_container_end_page |
190 |
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1790602982883065856 |