Are soil biota buffered against climatic extremes? An experimental test on testate amoebae in arctic tundra (Qeqertarsuaq, West Greenland)
Abstract: Climate warming is likely to have pronounced impacts on soil biota in arctic ecosystems. In a warmer climate, heatwaves are more frequent and intense, but it is unclear to what extent soil communities are buffered against this. We studied the effects of an artificially induced heatwave on...
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ftunivantwerpen:c:irua:73418 2024-10-06T13:46:15+00:00 Are soil biota buffered against climatic extremes? An experimental test on testate amoebae in arctic tundra (Qeqertarsuaq, West Greenland) Beyens, Louis Ledeganck, Pieter Graae, B.J. Nijs, Ivan 2009 pdf https://hdl.handle.net/10067/734180151162165141 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1007/S00300-008-0540-Y info:eu-repo/semantics/altIdentifier/isi/000263389000014 info:eu-repo/semantics/closedAccess 0722-4060 Polar biology Biology info:eu-repo/semantics/article 2009 ftunivantwerpen https://doi.org/10.1007/S00300-008-0540-Y 2024-09-10T04:06:32Z Abstract: Climate warming is likely to have pronounced impacts on soil biota in arctic ecosystems. In a warmer climate, heatwaves are more frequent and intense, but it is unclear to what extent soil communities are buffered against this. We studied the effects of an artificially induced heatwave on the structure of testate amoebae communities in dry heath tundra in Qeqertarsuaq (Disko Island, West Greenland) during the summer of 2003. While the heatwave was severe enough to induce significant leaf mortality in the aboveground vegetation, overall testate amoebae abundance did not react to the difference in temperature. However, in the heated plots transient shifts in species populations occurred during the exposure, followed by increases in species richness weeks after the heatwave had ended. The most important taxa appearing after the heating period belonged to bacterivorous genera, in agreement with a transient peak in bacterial colony forming units, caused by the heatwave. Lobose testate amoebae resisted the heating and its associated desiccation better than their filose counterparts. Article in Journal/Newspaper Arctic Greenland Polar Biology Qeqertarsuaq Tundra IRUA - Institutional Repository van de Universiteit Antwerpen Arctic Greenland Qeqertarsuaq ENVELOPE(-56.867,-56.867,74.400,74.400) Polar Biology 32 3 453 462 |
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Open Polar |
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IRUA - Institutional Repository van de Universiteit Antwerpen |
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English |
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Biology |
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Biology Beyens, Louis Ledeganck, Pieter Graae, B.J. Nijs, Ivan Are soil biota buffered against climatic extremes? An experimental test on testate amoebae in arctic tundra (Qeqertarsuaq, West Greenland) |
topic_facet |
Biology |
description |
Abstract: Climate warming is likely to have pronounced impacts on soil biota in arctic ecosystems. In a warmer climate, heatwaves are more frequent and intense, but it is unclear to what extent soil communities are buffered against this. We studied the effects of an artificially induced heatwave on the structure of testate amoebae communities in dry heath tundra in Qeqertarsuaq (Disko Island, West Greenland) during the summer of 2003. While the heatwave was severe enough to induce significant leaf mortality in the aboveground vegetation, overall testate amoebae abundance did not react to the difference in temperature. However, in the heated plots transient shifts in species populations occurred during the exposure, followed by increases in species richness weeks after the heatwave had ended. The most important taxa appearing after the heating period belonged to bacterivorous genera, in agreement with a transient peak in bacterial colony forming units, caused by the heatwave. Lobose testate amoebae resisted the heating and its associated desiccation better than their filose counterparts. |
format |
Article in Journal/Newspaper |
author |
Beyens, Louis Ledeganck, Pieter Graae, B.J. Nijs, Ivan |
author_facet |
Beyens, Louis Ledeganck, Pieter Graae, B.J. Nijs, Ivan |
author_sort |
Beyens, Louis |
title |
Are soil biota buffered against climatic extremes? An experimental test on testate amoebae in arctic tundra (Qeqertarsuaq, West Greenland) |
title_short |
Are soil biota buffered against climatic extremes? An experimental test on testate amoebae in arctic tundra (Qeqertarsuaq, West Greenland) |
title_full |
Are soil biota buffered against climatic extremes? An experimental test on testate amoebae in arctic tundra (Qeqertarsuaq, West Greenland) |
title_fullStr |
Are soil biota buffered against climatic extremes? An experimental test on testate amoebae in arctic tundra (Qeqertarsuaq, West Greenland) |
title_full_unstemmed |
Are soil biota buffered against climatic extremes? An experimental test on testate amoebae in arctic tundra (Qeqertarsuaq, West Greenland) |
title_sort |
are soil biota buffered against climatic extremes? an experimental test on testate amoebae in arctic tundra (qeqertarsuaq, west greenland) |
publishDate |
2009 |
url |
https://hdl.handle.net/10067/734180151162165141 |
long_lat |
ENVELOPE(-56.867,-56.867,74.400,74.400) |
geographic |
Arctic Greenland Qeqertarsuaq |
geographic_facet |
Arctic Greenland Qeqertarsuaq |
genre |
Arctic Greenland Polar Biology Qeqertarsuaq Tundra |
genre_facet |
Arctic Greenland Polar Biology Qeqertarsuaq Tundra |
op_source |
0722-4060 Polar biology |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/S00300-008-0540-Y info:eu-repo/semantics/altIdentifier/isi/000263389000014 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1007/S00300-008-0540-Y |
container_title |
Polar Biology |
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32 |
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3 |
container_start_page |
453 |
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462 |
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1812174551147085824 |