Plant expansion drives bacteria and collembola communities under winter climate change in frost-affected tundra
Abstract: At high latitudes, winter warming facilitates vegetation expansion into barren frost-affected soils. The interplay of changes in winter climate and plant presence may alter soil functioning via effects on decomposers. Responses of decomposer soil fauna and microorganisms to such changes li...
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ftunivantwerpen:c:irua:162527 2023-07-16T04:01:10+02:00 Plant expansion drives bacteria and collembola communities under winter climate change in frost-affected tundra Krab, Eveline J. Monteux, Sylvain Weedon, James Dorrepaal, Ellen 2019 pdf https://hdl.handle.net/10067/1625270151162165141 https://repository.uantwerpen.be/docman/irua/df1626/162527.pdf eng eng info:eu-repo/semantics/altIdentifier/doi/10.1016/J.SOILBIO.2019.107569 info:eu-repo/semantics/altIdentifier/isi/000495519900007 info:eu-repo/semantics/openAccess 0038-0717 Soil biology and biochemistry Biology info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2019 ftunivantwerpen https://doi.org/10.1016/J.SOILBIO.2019.107569 2023-06-26T22:29:23Z Abstract: At high latitudes, winter warming facilitates vegetation expansion into barren frost-affected soils. The interplay of changes in winter climate and plant presence may alter soil functioning via effects on decomposers. Responses of decomposer soil fauna and microorganisms to such changes likely differ from each other, since their life histories, dispersal mechanisms and microhabitats vary greatly. We investigated the relative impacts of short-term winter warming and increases in plant cover on bacteria and collembola community composition in cryoturbated, non-sorted circle tundra. By covering non-sorted circles with insulating gardening fibre cloth (fleeces) or using stone walls accumulating snow, we imposed two climate-change scenarios: snow accumulation increased autumn-to-late winter soil temperatures (−1 cm) by 1.4 °C, while fleeces warmed soils during that period by 1 °C and increased spring temperatures by 1.1 °C. Summer bacteria and collembola communities were sampled from within-circle locations differing in vegetation abundance and soil properties. Two years of winter warming had no effects on either decomposer community. Instead, their community compositions were strongly determined by sampling location: communities in barren circle centres were distinct from those in vegetated outer rims, while communities in sparsely vegetated patches of circle centres were intermediate. Diversity patterns indicate that collembola communities are tightly linked to plant presence while bacteria communities correlated with soil properties. Our results thus suggest that direct effects of short-term winter warming are likely to be minimal, but that vegetation encroachment on barren cryoturbated ground will affect decomposer community composition substantially. At decadal timescales, collembola community changes may follow relatively fast after warming-driven plant establishment into barren areas, whereas bacteria communities may take longer to respond. If shifts in decomposer community composition are indicative ... Article in Journal/Newspaper Tundra IRUA - Institutional Repository van de Universiteit Antwerpen Soil Biology and Biochemistry 138 107569 |
institution |
Open Polar |
collection |
IRUA - Institutional Repository van de Universiteit Antwerpen |
op_collection_id |
ftunivantwerpen |
language |
English |
topic |
Biology |
spellingShingle |
Biology Krab, Eveline J. Monteux, Sylvain Weedon, James Dorrepaal, Ellen Plant expansion drives bacteria and collembola communities under winter climate change in frost-affected tundra |
topic_facet |
Biology |
description |
Abstract: At high latitudes, winter warming facilitates vegetation expansion into barren frost-affected soils. The interplay of changes in winter climate and plant presence may alter soil functioning via effects on decomposers. Responses of decomposer soil fauna and microorganisms to such changes likely differ from each other, since their life histories, dispersal mechanisms and microhabitats vary greatly. We investigated the relative impacts of short-term winter warming and increases in plant cover on bacteria and collembola community composition in cryoturbated, non-sorted circle tundra. By covering non-sorted circles with insulating gardening fibre cloth (fleeces) or using stone walls accumulating snow, we imposed two climate-change scenarios: snow accumulation increased autumn-to-late winter soil temperatures (−1 cm) by 1.4 °C, while fleeces warmed soils during that period by 1 °C and increased spring temperatures by 1.1 °C. Summer bacteria and collembola communities were sampled from within-circle locations differing in vegetation abundance and soil properties. Two years of winter warming had no effects on either decomposer community. Instead, their community compositions were strongly determined by sampling location: communities in barren circle centres were distinct from those in vegetated outer rims, while communities in sparsely vegetated patches of circle centres were intermediate. Diversity patterns indicate that collembola communities are tightly linked to plant presence while bacteria communities correlated with soil properties. Our results thus suggest that direct effects of short-term winter warming are likely to be minimal, but that vegetation encroachment on barren cryoturbated ground will affect decomposer community composition substantially. At decadal timescales, collembola community changes may follow relatively fast after warming-driven plant establishment into barren areas, whereas bacteria communities may take longer to respond. If shifts in decomposer community composition are indicative ... |
format |
Article in Journal/Newspaper |
author |
Krab, Eveline J. Monteux, Sylvain Weedon, James Dorrepaal, Ellen |
author_facet |
Krab, Eveline J. Monteux, Sylvain Weedon, James Dorrepaal, Ellen |
author_sort |
Krab, Eveline J. |
title |
Plant expansion drives bacteria and collembola communities under winter climate change in frost-affected tundra |
title_short |
Plant expansion drives bacteria and collembola communities under winter climate change in frost-affected tundra |
title_full |
Plant expansion drives bacteria and collembola communities under winter climate change in frost-affected tundra |
title_fullStr |
Plant expansion drives bacteria and collembola communities under winter climate change in frost-affected tundra |
title_full_unstemmed |
Plant expansion drives bacteria and collembola communities under winter climate change in frost-affected tundra |
title_sort |
plant expansion drives bacteria and collembola communities under winter climate change in frost-affected tundra |
publishDate |
2019 |
url |
https://hdl.handle.net/10067/1625270151162165141 https://repository.uantwerpen.be/docman/irua/df1626/162527.pdf |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
0038-0717 Soil biology and biochemistry |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/J.SOILBIO.2019.107569 info:eu-repo/semantics/altIdentifier/isi/000495519900007 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/J.SOILBIO.2019.107569 |
container_title |
Soil Biology and Biochemistry |
container_volume |
138 |
container_start_page |
107569 |
_version_ |
1771550726511656960 |