Last-century vegetational changes in northern Europe. Characterisation, causes, and consequences
In the face of recent changes in environmental conditions and climate, longterm studies provide important insights into patterns and processes of vegetational change. In northern Europe, however, long-term studies are rare for many ecosystems. This thesis uses a new approach that uses historical phy...
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Language: | English |
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The University of Bergen
2011
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ftunivbergen:oai:bora.uib.no:1956/5186 2023-05-15T14:28:11+02:00 Last-century vegetational changes in northern Europe. Characterisation, causes, and consequences Kapfer, Jutta 2011-11-04 application/pdf http://hdl.handle.net/1956/5186 eng eng The University of Bergen Paper I: Felde V. A., Kapfer J., and Grytnes J.-A. Upward shift in elevational plant species ranges in Sikkilsdalen, central Norway. The article is available at: http://hdl.handle.net/1956/5185 Paper II: Kapfer J., Grytnes J.-A., Gunnarsson U., and Birks H. J. B. (2011) Finescale changes in vegetation composition in a boreal mire over 50 years. Journal of Ecology 99(5): 1179-1189, Mai 2011. Full text not available in BORA due to publisher restrictions. The article is available at: http://dx.doi.org/10.1111/j.1365-2745.2011.01847.x Paper III: Kapfer J., Virtanen R., and Grytnes J.-A. Changes in arctic vegetation composition on Jan Mayen Island – a comparison of two time scales. Full text not available in BORA. Paper IV: Kapfer J., Birks H. J. B., Felde V. A., Klanderud, K., Martinessen T., Schei F. H., Virtanen R., and Grytnes J.-A. Using species co-occurrences to quantify vegetation stability. Full text not available in BORA. urn:isbn:978-82-308-1875-6 (printed version) http://hdl.handle.net/1956/5186 Copyright the author. All rights reserved VDP::Mathematics and natural science: 400::Zoology and botany: 480::Vegetation history: 495 Doctoral thesis 2011 ftunivbergen https://doi.org/10.1111/j.1365-2745.2011.01847.x 2023-03-14T17:39:33Z In the face of recent changes in environmental conditions and climate, longterm studies provide important insights into patterns and processes of vegetational change. In northern Europe, however, long-term studies are rare for many ecosystems. This thesis uses a new approach that uses historical phytosociological data-sets to study changes in the vegetation of alpine, mire, and arctic habitats and regions across northern Europe over the past decades. Because plot relocation due to the use of non-permanent plots may bias the detection of change, the thesis investigates if observed changes are larger than what is expected by chance. Furthermore, to find out if observed changes in vegetation are consistent between different habitats and regions in northern Europe, a meta-analysis of 15 data sets from arctic, alpine, and mire sites is presented. The results of the resurvey conducted in alpine Sikkilsdal, Central Norway, show that most species have shifted their distributional range upwards along the elevational gradient since the first sampling in the 1920s. These upward shifts were found to be independent of whether upper, lower, or optimum elevation were considered. As the largest shifts were found for species growing in snow-bed habitats, the results suggest climate warming and alterations in snow-cover duration to be important drivers of the observed range shifts. In the Åkhult mire (South Sweden), changes over a period of 54 years were found predominantly for species of dwarf-shrubs and trees, whereas several typical mire species have decreased or disappeared from the study site. Drier mire surface and higher nutrient availability due to a warmer climate are identified as the most plausible drivers explaining the observed turnover in species composition. On Jan Mayen Island, similar changes in vegetation were found during time periods of 19 and 80 years. Over both time-scales, graminoid and woody species were found to have increased, whereas several snow-bed related species have decreased. However, whereas the ... Doctoral or Postdoctoral Thesis Arctic Arctic Jan Mayen Jan Mayen Island University of Bergen: Bergen Open Research Archive (BORA-UiB) Arctic Jan Mayen Norway Journal of Ecology 99 5 1179 1189 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Vegetation history: 495 |
spellingShingle |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Vegetation history: 495 Kapfer, Jutta Last-century vegetational changes in northern Europe. Characterisation, causes, and consequences |
topic_facet |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Vegetation history: 495 |
description |
In the face of recent changes in environmental conditions and climate, longterm studies provide important insights into patterns and processes of vegetational change. In northern Europe, however, long-term studies are rare for many ecosystems. This thesis uses a new approach that uses historical phytosociological data-sets to study changes in the vegetation of alpine, mire, and arctic habitats and regions across northern Europe over the past decades. Because plot relocation due to the use of non-permanent plots may bias the detection of change, the thesis investigates if observed changes are larger than what is expected by chance. Furthermore, to find out if observed changes in vegetation are consistent between different habitats and regions in northern Europe, a meta-analysis of 15 data sets from arctic, alpine, and mire sites is presented. The results of the resurvey conducted in alpine Sikkilsdal, Central Norway, show that most species have shifted their distributional range upwards along the elevational gradient since the first sampling in the 1920s. These upward shifts were found to be independent of whether upper, lower, or optimum elevation were considered. As the largest shifts were found for species growing in snow-bed habitats, the results suggest climate warming and alterations in snow-cover duration to be important drivers of the observed range shifts. In the Åkhult mire (South Sweden), changes over a period of 54 years were found predominantly for species of dwarf-shrubs and trees, whereas several typical mire species have decreased or disappeared from the study site. Drier mire surface and higher nutrient availability due to a warmer climate are identified as the most plausible drivers explaining the observed turnover in species composition. On Jan Mayen Island, similar changes in vegetation were found during time periods of 19 and 80 years. Over both time-scales, graminoid and woody species were found to have increased, whereas several snow-bed related species have decreased. However, whereas the ... |
format |
Doctoral or Postdoctoral Thesis |
author |
Kapfer, Jutta |
author_facet |
Kapfer, Jutta |
author_sort |
Kapfer, Jutta |
title |
Last-century vegetational changes in northern Europe. Characterisation, causes, and consequences |
title_short |
Last-century vegetational changes in northern Europe. Characterisation, causes, and consequences |
title_full |
Last-century vegetational changes in northern Europe. Characterisation, causes, and consequences |
title_fullStr |
Last-century vegetational changes in northern Europe. Characterisation, causes, and consequences |
title_full_unstemmed |
Last-century vegetational changes in northern Europe. Characterisation, causes, and consequences |
title_sort |
last-century vegetational changes in northern europe. characterisation, causes, and consequences |
publisher |
The University of Bergen |
publishDate |
2011 |
url |
http://hdl.handle.net/1956/5186 |
geographic |
Arctic Jan Mayen Norway |
geographic_facet |
Arctic Jan Mayen Norway |
genre |
Arctic Arctic Jan Mayen Jan Mayen Island |
genre_facet |
Arctic Arctic Jan Mayen Jan Mayen Island |
op_relation |
Paper I: Felde V. A., Kapfer J., and Grytnes J.-A. Upward shift in elevational plant species ranges in Sikkilsdalen, central Norway. The article is available at: http://hdl.handle.net/1956/5185 Paper II: Kapfer J., Grytnes J.-A., Gunnarsson U., and Birks H. J. B. (2011) Finescale changes in vegetation composition in a boreal mire over 50 years. Journal of Ecology 99(5): 1179-1189, Mai 2011. Full text not available in BORA due to publisher restrictions. The article is available at: http://dx.doi.org/10.1111/j.1365-2745.2011.01847.x Paper III: Kapfer J., Virtanen R., and Grytnes J.-A. Changes in arctic vegetation composition on Jan Mayen Island – a comparison of two time scales. Full text not available in BORA. Paper IV: Kapfer J., Birks H. J. B., Felde V. A., Klanderud, K., Martinessen T., Schei F. H., Virtanen R., and Grytnes J.-A. Using species co-occurrences to quantify vegetation stability. Full text not available in BORA. urn:isbn:978-82-308-1875-6 (printed version) http://hdl.handle.net/1956/5186 |
op_rights |
Copyright the author. All rights reserved |
op_doi |
https://doi.org/10.1111/j.1365-2745.2011.01847.x |
container_title |
Journal of Ecology |
container_volume |
99 |
container_issue |
5 |
container_start_page |
1179 |
op_container_end_page |
1189 |
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1766302341736169472 |