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Decreased cryogenic disturbance: one of the potential mechanisms behind the vegetation change in the Arctic
During the last few decades, the Arctic has experienced large-scale vegetation changes. Understanding the mechanisms behind this vegetation change is crucial for our ability to predict future changes. This study tested the hypothesis that decreased cryogenic disturbances cause vegetation change in p...
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| Published in: | Polar biology 2018, Vol.41 (1), p.101-110 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
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| cites | cdi_FETCH-LOGICAL-c436t-ef31b2e81b18c7c3f5f7129d68c2b794ce8d96ab9e9c8a64d4a688e92c9221b43 |
| container_end_page | 110 |
| container_issue | 1 |
| container_start_page | 101 |
| container_title | Polar biology |
| container_volume | 41 |
| creator | Becher, M. Olofsson, J. Berglund, L. Klaminder, J. |
| description | During the last few decades, the Arctic has experienced large-scale vegetation changes. Understanding the mechanisms behind this vegetation change is crucial for our ability to predict future changes. This study tested the hypothesis that decreased cryogenic disturbances cause vegetation change in patterned ground study fields (non-sorted circles) in Abisko, Sweden during the last few decades. The hypothesis was tested by surveying the composition of plant communities across a gradient in cryogenic disturbance and by reinvestigating plant communities previously surveyed in the 1980s to scrutinise how these communities changed in response to reduced cryogenic disturbance. Whereas the historical changes in species occurrence associated with decreased cryogenic disturbances were relatively consistent with the changes along the contemporary gradient of cryogenic disturbances, the species abundance revealed important transient changes highly dependent on the initial plant community composition. Our results suggest that altered cryogenic disturbances cause temporal changes in vegetation dynamics, but the net effects on vegetation communities depend on the composition of initial plant species. |
| doi_str_mv | 10.1007/s00300-017-2173-5 |
| format | article |
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| ispartof | Polar biology, 2018, Vol.41 (1), p.101-110 |
| issn | 0722-4060 1432-2056 1432-2056 |
| language | eng |
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| subjects | Biomedical and Life Sciences Community composition Cryogenic disturbance Differential heave Disturbances Dynamics Ecology Freeze/thaw-index Herbivores Hypotheses Life Sciences Microbiology naturgeografi Non-sorted circles Oceanography Original Paper Patterned ground Physical Geography Plant abundance Plant communities Plant Sciences Plant species Species Surveying Surveys Temporal variations Vegetation Vegetation changes Vegetation dynamics Vegetation effects Zoology |
| title | Decreased cryogenic disturbance: one of the potential mechanisms behind the vegetation change in the Arctic |
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