Overwintering survival of soil microarthropods under differing natural snow covers ...
The Arctic has a diverse terrestrial microarthropod fauna which overwinters in situ in soil and vegetation. This fauna is involved in key ecosystem process, for example decomposition and pollination, and has tolerance to the Arctic’s winter conditions. However, the Arctic is undergoing rapid change....
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| Format: | Dataset |
| Language: | English |
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The University Centre in Svalbard
2023
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| Online Access: | https://dx.doi.org/10.15468/mjrahz https://www.gbif.org/dataset/9bf3a189-b38c-4999-a7b3-f926b51769f8 |
| Summary: | The Arctic has a diverse terrestrial microarthropod fauna which overwinters in situ in soil and vegetation. This fauna is involved in key ecosystem process, for example decomposition and pollination, and has tolerance to the Arctic’s winter conditions. However, the Arctic is undergoing rapid change. Svalbard is experiencing warming rates up to four times the global average as well as alterations in precipitation (quantity and form; snow or rain) and wind direction. These will modify the conditions experienced by the overwintering fauna. Since laboratory experiments often fail to capture the diversity of environmental stressors, we employed a manipulation experiment to use the naturally accumulating snow pack to moderate soil winter soil temperatures, combined with an extended incubator treatment, to map the duration limits of naturally induced cold tolerance. We demonstrate that the Collembola fauna can tolerate temperatures of -25°C but that, in areas devoid of snow accumulation and when soil temperatures ... |
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