Environmental factors influencing soil testate amoebae in herbaceous and shrubby vegetation along an altitudinal gradient in subarctic tundra (Abisko, Sweden)
Abstract: Shifts in community composition of soil protozoa in response to climate change may substantially influence microbial activity and thereby decomposition processes. However, effects of climate and vegetation on soil protozoa remain poorly understood. We studied the distribution of soil testa...
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Online Access: | https://hdl.handle.net/10067/1010570151162165141 |
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ftunivantwerpen:c:irua:101057 2023-07-16T03:51:08+02:00 Environmental factors influencing soil testate amoebae in herbaceous and shrubby vegetation along an altitudinal gradient in subarctic tundra (Abisko, Sweden) Tsyganov, Andrey Milbau, Ann Beyens, Louis 2013 https://hdl.handle.net/10067/1010570151162165141 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1016/J.EJOP.2012.08.004 info:eu-repo/semantics/altIdentifier/isi/000318055600007 info:eu-repo/semantics/closedAccess 0932-4739 European journal of protistology Biology info:eu-repo/semantics/article 2013 ftunivantwerpen https://doi.org/10.1016/J.EJOP.2012.08.004 2023-06-26T22:16:02Z Abstract: Shifts in community composition of soil protozoa in response to climate change may substantially influence microbial activity and thereby decomposition processes. However, effects of climate and vegetation on soil protozoa remain poorly understood. We studied the distribution of soil testate amoebae in herbaceous and shrubby vegetation along an altitudinal gradient (from below the treeline at 500 m to the mid-alpine region at 900 m a.s.l.) in subarctic tundra. To explain patterns in abundance, species diversity and assemblage composition of testate amoebae, a data set of microclimate and soil chemical characteristics was collected. Both elevation and vegetation influenced the assemblage composition of testate amoebae. The variation was regulated by interactive effects of summer soil moisture, winter soil temperature, soil pH and nitrate ion concentrations. Besides, soil moisture regulated non-linear patterns in species richness across the gradient. This is the first study showing the effects of winter soil temperatures on species composition of soil protozoa. The effects could be explained by specific adaptations of testate amoebae such as frost-resistant cysts allowing them to survive low winter temperatures. We conclude that the microclimate and soil chemical characteristics are the main drivers of changes in protozoan assemblage composition in response to elevation and vegetation. Article in Journal/Newspaper Abisko Subarctic Tundra IRUA - Institutional Repository van de Universiteit Antwerpen Abisko ENVELOPE(18.829,18.829,68.349,68.349) European Journal of Protistology 49 2 238 248 |
institution |
Open Polar |
collection |
IRUA - Institutional Repository van de Universiteit Antwerpen |
op_collection_id |
ftunivantwerpen |
language |
English |
topic |
Biology |
spellingShingle |
Biology Tsyganov, Andrey Milbau, Ann Beyens, Louis Environmental factors influencing soil testate amoebae in herbaceous and shrubby vegetation along an altitudinal gradient in subarctic tundra (Abisko, Sweden) |
topic_facet |
Biology |
description |
Abstract: Shifts in community composition of soil protozoa in response to climate change may substantially influence microbial activity and thereby decomposition processes. However, effects of climate and vegetation on soil protozoa remain poorly understood. We studied the distribution of soil testate amoebae in herbaceous and shrubby vegetation along an altitudinal gradient (from below the treeline at 500 m to the mid-alpine region at 900 m a.s.l.) in subarctic tundra. To explain patterns in abundance, species diversity and assemblage composition of testate amoebae, a data set of microclimate and soil chemical characteristics was collected. Both elevation and vegetation influenced the assemblage composition of testate amoebae. The variation was regulated by interactive effects of summer soil moisture, winter soil temperature, soil pH and nitrate ion concentrations. Besides, soil moisture regulated non-linear patterns in species richness across the gradient. This is the first study showing the effects of winter soil temperatures on species composition of soil protozoa. The effects could be explained by specific adaptations of testate amoebae such as frost-resistant cysts allowing them to survive low winter temperatures. We conclude that the microclimate and soil chemical characteristics are the main drivers of changes in protozoan assemblage composition in response to elevation and vegetation. |
format |
Article in Journal/Newspaper |
author |
Tsyganov, Andrey Milbau, Ann Beyens, Louis |
author_facet |
Tsyganov, Andrey Milbau, Ann Beyens, Louis |
author_sort |
Tsyganov, Andrey |
title |
Environmental factors influencing soil testate amoebae in herbaceous and shrubby vegetation along an altitudinal gradient in subarctic tundra (Abisko, Sweden) |
title_short |
Environmental factors influencing soil testate amoebae in herbaceous and shrubby vegetation along an altitudinal gradient in subarctic tundra (Abisko, Sweden) |
title_full |
Environmental factors influencing soil testate amoebae in herbaceous and shrubby vegetation along an altitudinal gradient in subarctic tundra (Abisko, Sweden) |
title_fullStr |
Environmental factors influencing soil testate amoebae in herbaceous and shrubby vegetation along an altitudinal gradient in subarctic tundra (Abisko, Sweden) |
title_full_unstemmed |
Environmental factors influencing soil testate amoebae in herbaceous and shrubby vegetation along an altitudinal gradient in subarctic tundra (Abisko, Sweden) |
title_sort |
environmental factors influencing soil testate amoebae in herbaceous and shrubby vegetation along an altitudinal gradient in subarctic tundra (abisko, sweden) |
publishDate |
2013 |
url |
https://hdl.handle.net/10067/1010570151162165141 |
long_lat |
ENVELOPE(18.829,18.829,68.349,68.349) |
geographic |
Abisko |
geographic_facet |
Abisko |
genre |
Abisko Subarctic Tundra |
genre_facet |
Abisko Subarctic Tundra |
op_source |
0932-4739 European journal of protistology |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/J.EJOP.2012.08.004 info:eu-repo/semantics/altIdentifier/isi/000318055600007 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/J.EJOP.2012.08.004 |
container_title |
European Journal of Protistology |
container_volume |
49 |
container_issue |
2 |
container_start_page |
238 |
op_container_end_page |
248 |
_version_ |
1771548076078530560 |