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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Online Access: | https://doi.org/10.3402/polar.v33.22926 https://doaj.org/article/3cf4b2c2965e4952a5c52a14749cc2b1 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:3cf4b2c2965e4952a5c52a14749cc2b1 2023-05-15T14:57:19+02:00 Permafrost dynamics structure species compositions of oribatid mite (Acari: Oribatida) communities in sub-Arctic palsa mires Inkeri Markkula 2014-10-01 https://doi.org/10.3402/polar.v33.22926 https://doaj.org/article/3cf4b2c2965e4952a5c52a14749cc2b1 en eng Norwegian Polar Institute 1751-8369 doi:10.3402/polar.v33.22926 https://doaj.org/article/3cf4b2c2965e4952a5c52a14749cc2b1 undefined Polar Research, Vol 33, Iss 0, Pp 1-10 (2014) Biodiversity community composition habitat heterogeneity oribatid mites palsa mires permafrost dynamics envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2014 fttriple https://doi.org/10.3402/polar.v33.22926 2023-01-22T19:28:05Z 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. Article in Journal/Newspaper Arctic Fennoscandia palsa permafrost Polar Research Mite Unknown Arctic Norway Polar Research 33 1 22926 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
Biodiversity community composition habitat heterogeneity oribatid mites palsa mires permafrost dynamics envir geo |
spellingShingle |
Biodiversity community composition habitat heterogeneity oribatid mites palsa mires permafrost dynamics envir geo Inkeri Markkula 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 envir geo |
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. |
format |
Article in Journal/Newspaper |
author |
Inkeri Markkula |
author_facet |
Inkeri Markkula |
author_sort |
Inkeri Markkula |
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://doi.org/10.3402/polar.v33.22926 https://doaj.org/article/3cf4b2c2965e4952a5c52a14749cc2b1 |
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, Iss 0, Pp 1-10 (2014) |
op_relation |
1751-8369 doi:10.3402/polar.v33.22926 https://doaj.org/article/3cf4b2c2965e4952a5c52a14749cc2b1 |
op_rights |
undefined |
op_doi |
https://doi.org/10.3402/polar.v33.22926 |
container_title |
Polar Research |
container_volume |
33 |
container_issue |
1 |
container_start_page |
22926 |
_version_ |
1766329401939591168 |