Descrição
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 dip below -30°C there is significant mortality. Furthermore, we demonstrate that exposure to a further extended 12 month period at -6°C, as a simple model of a situation where snow cover is not lost during the short Arctic summer, results in additional mortality with relatively few Collembola surviving. By contrast, while oribatid mites displayed similar survival over a natural winter as the Collembola, they were highly resistant to the extended exposure at -6°C, with no additional mortality occurring. We also documented survival amongst other invertebrate groups, including Nematocera and Brachycera larvae, Hemiptera (A. svalbardicum), Coleoptera (I. flagellum), and Araneae (Linyphiidae). We conclude that snow depth and winter air temperatures interact to regulate soil microarthropod populations over local scales and the functioning of the Arctic soil ecosystem. Moreover, the environmental changes currently being observed in polar regions will continue to modify this fauna and its local and micro-scale distribution.
Registros de Dados
Os dados deste recurso de evento de amostragem foram publicados como um Darwin Core Archive (DwC-A), que é o formato padronizado para compartilhamento de dados de biodiversidade como um conjunto de uma ou mais tabelas de dados. A tabela de dados do núcleo contém 7 registros.
Também existem 2 tabelas de dados de extensão. Um registro de extensão fornece informações adicionais sobre um registro do núcleo. O número de registros em cada tabela de dados de extensão é ilustrado abaixo.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Versões
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Como citar
Pesquisadores deveriam citar esta obra da seguinte maneira:
Interactions between winter temperatures and duration of exposure may structure Arctic microarthropod communities Stephen James Coulson, Peter Convey, Sil Schuuring, Simone Iris Lang Journal of Thermal Biology
Direitos
Pesquisadores devem respeitar a seguinte declaração de direitos:
O editor e o detentor dos direitos deste trabalho é The University Centre in Svalbard. This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.
GBIF Registration
Este recurso foi registrado no GBIF e atribuído ao seguinte GBIF UUID: 9bf3a189-b38c-4999-a7b3-f926b51769f8. The University Centre in Svalbard publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por GBIF Norway.
Palavras-chave
Polar; Snow; Climate change; Soil; Invertebrate
Contatos
- Provedor Dos Metadados ●
- Originador ●
- Usuário ●
- Ponto De Contato
https://orcid.org/0000-0003-0935-959X
Cobertura Geográfica
Svalbard
| Coordenadas delimitadoras | Sul Oeste [-90, -180], Norte Leste [90, 180] |
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Métodos de Amostragem
Sampling 10*10cm soil cores through the organic soil, c. 5 to 10cm.
| Área de Estudo | Dryas octopetala tundra at the entrance to Endalen, Svalbard. |
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Descrição dos passos do método:
- See paper: Interactions between winter temperatures and duration of exposure may structure Arctic microarthropod communities Stephen James Coulson, Peter Convey, Sil Schuuring, Simone Iris Lang. Journal of Thermal Biology
Dados de Coleção
| Nome da Coleção | UNIS invertebrate collection |
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| Métodos de preservação do espécime | Álcool |
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Metadados Adicionais
| Propósito | The study was conducted to demonstrate the effect of snow cover on the survival of soil microarthropods to natural winter conditions. |
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| Descrição da manutenção | This was a one-off study and the data set will not be extended further. |
| Identificadores alternativos | https://ipt.gbif.no/resource?r=invert_cold_survival |