Permafrost dynamics structure species compositions of oribatid mite (Acari: Oribatida) communities in sub-Arctic palsa mires
Palsa mires are sub-Arctic peatland complexes, vulnerable ecosystems with patches of permafrost. Permafrost thawing in palsa mires occurs throughout Fennoscandia, probably due to local climatic warming. In palsa mires, permafrost thaw alters hydrological conditions, vegetation structure and microhab...
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Norwegian Polar Institute
2014
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ftjpolarres:oai:journals.openacademia.net:article/3163 2024-06-23T07:50:09+00:00 Permafrost dynamics structure species compositions of oribatid mite (Acari: Oribatida) communities in sub-Arctic palsa mires Markkula, Inkeri 2014-10-14 application/pdf text/html application/epub+zip text/plain https://polarresearch.net/index.php/polar/article/view/3163 https://doi.org/10.3402/polar.v33.22926 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/3163/pdf_1 https://polarresearch.net/index.php/polar/article/view/3163/html https://polarresearch.net/index.php/polar/article/view/3163/epub https://polarresearch.net/index.php/polar/article/view/3163/xml https://polarresearch.net/index.php/polar/article/view/3163 doi:10.3402/polar.v33.22926 Polar Research; Vol 33 (2014) 1751-8369 Biodiversity community composition habitat heterogeneity oribatid mites palsa mires permafrost dynamics info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2014 ftjpolarres https://doi.org/10.3402/polar.v33.22926 2024-06-13T23:33:00Z Palsa mires are sub-Arctic peatland complexes, vulnerable ecosystems with patches of permafrost. Permafrost thawing in palsa mires occurs throughout Fennoscandia, probably due to local climatic warming. In palsa mires, permafrost thaw alters hydrological conditions, vegetation structure and microhabitat composition with unknown consequences for invertebrate fauna. This study's objectives were to examine the role of microhabitat heterogeneity and the effects of permafrost dynamics and thaw on oribatid mite communities in palsa mires. Oribatid mites were sampled in two palsa mires in Finland and Norway. Three different types of microhabitats were examined: graminoid-dominated wet sites, herb-dominated small hummocks and evergreen shrub-dominated permafrost-underlain palsa hummocks. The results indicate that permafrost dynamics are an important factor structuring oribatid mite communities in palsa mires. The community composition of oribatid mites differed remarkably among microhabitats. Six species were significantly more abundant in permafrost-underlain microhabitats in relation to non-permafrost microhabitats. None of the species identified occurred exclusively in permafrost-underlain microhabitats. Findings suggest that permafrost thaw may not have an impact on species diversity but may alter community composition of oribatid mites in palsa mire ecosystems.Keywords: Biodiversity; community composition; habitat heterogeneity; oribatid mites; palsa mires; permafrost dynamics.(Published: 14 October 2014)Citation: Polar Research 2014, 33, 22926, http://dx.doi.org/10.3402/polar.v33.22926 Article in Journal/Newspaper Arctic Fennoscandia palsa permafrost Polar Research Mite Polar Research Arctic Norway Polar Research 33 1 22926 |
institution |
Open Polar |
collection |
Polar Research |
op_collection_id |
ftjpolarres |
language |
English |
topic |
Biodiversity community composition habitat heterogeneity oribatid mites palsa mires permafrost dynamics |
spellingShingle |
Biodiversity community composition habitat heterogeneity oribatid mites palsa mires permafrost dynamics Markkula, Inkeri Permafrost dynamics structure species compositions of oribatid mite (Acari: Oribatida) communities in sub-Arctic palsa mires |
topic_facet |
Biodiversity community composition habitat heterogeneity oribatid mites palsa mires permafrost dynamics |
description |
Palsa mires are sub-Arctic peatland complexes, vulnerable ecosystems with patches of permafrost. Permafrost thawing in palsa mires occurs throughout Fennoscandia, probably due to local climatic warming. In palsa mires, permafrost thaw alters hydrological conditions, vegetation structure and microhabitat composition with unknown consequences for invertebrate fauna. This study's objectives were to examine the role of microhabitat heterogeneity and the effects of permafrost dynamics and thaw on oribatid mite communities in palsa mires. Oribatid mites were sampled in two palsa mires in Finland and Norway. Three different types of microhabitats were examined: graminoid-dominated wet sites, herb-dominated small hummocks and evergreen shrub-dominated permafrost-underlain palsa hummocks. The results indicate that permafrost dynamics are an important factor structuring oribatid mite communities in palsa mires. The community composition of oribatid mites differed remarkably among microhabitats. Six species were significantly more abundant in permafrost-underlain microhabitats in relation to non-permafrost microhabitats. None of the species identified occurred exclusively in permafrost-underlain microhabitats. Findings suggest that permafrost thaw may not have an impact on species diversity but may alter community composition of oribatid mites in palsa mire ecosystems.Keywords: Biodiversity; community composition; habitat heterogeneity; oribatid mites; palsa mires; permafrost dynamics.(Published: 14 October 2014)Citation: Polar Research 2014, 33, 22926, http://dx.doi.org/10.3402/polar.v33.22926 |
format |
Article in Journal/Newspaper |
author |
Markkula, Inkeri |
author_facet |
Markkula, Inkeri |
author_sort |
Markkula, Inkeri |
title |
Permafrost dynamics structure species compositions of oribatid mite (Acari: Oribatida) communities in sub-Arctic palsa mires |
title_short |
Permafrost dynamics structure species compositions of oribatid mite (Acari: Oribatida) communities in sub-Arctic palsa mires |
title_full |
Permafrost dynamics structure species compositions of oribatid mite (Acari: Oribatida) communities in sub-Arctic palsa mires |
title_fullStr |
Permafrost dynamics structure species compositions of oribatid mite (Acari: Oribatida) communities in sub-Arctic palsa mires |
title_full_unstemmed |
Permafrost dynamics structure species compositions of oribatid mite (Acari: Oribatida) communities in sub-Arctic palsa mires |
title_sort |
permafrost dynamics structure species compositions of oribatid mite (acari: oribatida) communities in sub-arctic palsa mires |
publisher |
Norwegian Polar Institute |
publishDate |
2014 |
url |
https://polarresearch.net/index.php/polar/article/view/3163 https://doi.org/10.3402/polar.v33.22926 |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic Fennoscandia palsa permafrost Polar Research Mite |
genre_facet |
Arctic Fennoscandia palsa permafrost Polar Research Mite |
op_source |
Polar Research; Vol 33 (2014) 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/3163/pdf_1 https://polarresearch.net/index.php/polar/article/view/3163/html https://polarresearch.net/index.php/polar/article/view/3163/epub https://polarresearch.net/index.php/polar/article/view/3163/xml https://polarresearch.net/index.php/polar/article/view/3163 doi:10.3402/polar.v33.22926 |
op_doi |
https://doi.org/10.3402/polar.v33.22926 |
container_title |
Polar Research |
container_volume |
33 |
container_issue |
1 |
container_start_page |
22926 |
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1802641026949578752 |