Community and species-specific responses to simulated global change in two subarctic-alpine plant communities
Long-term observational studies have detected greening and shrub encroachment in the subarctic attributed to current climate change, while global change simulations have showed that community composition and productivity may shift drastically in arctic, subarctic, and alpine tundra plant communities...
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Language: | English |
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Uppsala universitet, Institutionen för ekologi och genetik
2015
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-40278 https://doi.org/10.1890/ES14-00427.1 |
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ftjoenkoepinguni:oai:DiVA.org:hj-40278 2023-05-15T15:04:55+02:00 Community and species-specific responses to simulated global change in two subarctic-alpine plant communities Little, Chelsea J. Jägerbrand, Annika K. Molau, Ulf Alatalo, Juha M. 2015 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-40278 https://doi.org/10.1890/ES14-00427.1 eng eng Uppsala universitet, Institutionen för ekologi och genetik Swedish Natl Rd & Transport Res Inst, VTI, S-10215 Stockholm, Sweden. Univ Gothenburg, Dept Biol & Environm Sci, S-40530 Gothenburg, Sweden. Uppsala Univ, Dept Ecol & Genet, S-62167 Visby, Sweden. Ecosphere, 2150-8925, 2015, 6:11, http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-40278 doi:10.1890/ES14-00427.1 ISI:000367310600018 info:eu-repo/semantics/openAccess Calamagrostis lapponica Carex bigelowii global change heath Latnjajaure Sweden meadow nutrient addition plant community composition subalpine tundra Vaccinium vitis-idaea warming Ecology Ekologi Article in journal info:eu-repo/semantics/article text 2015 ftjoenkoepinguni https://doi.org/10.1890/ES14-00427.1 2022-02-15T19:24:56Z Long-term observational studies have detected greening and shrub encroachment in the subarctic attributed to current climate change, while global change simulations have showed that community composition and productivity may shift drastically in arctic, subarctic, and alpine tundra plant communities in the future. However, responses to global change can be highly species-and context-dependent. We examined community-level and species-specific responses to a six-year factorial temperature and nutrient (nitrogen and phosphorus) amendment experiment in two alpine plant communities in northern Sweden: a species-poor dwarf shrub heath, and a more species-rich meadow. We hypothesized that abundance responses to global change would be variable within commonly defined vascular plant functional groups (e.g., forbs, evergreen shrubs, deciduous shrubs) and that new species would appear in experimental plots over time due to the ameliorated growing conditions. We found that within most functional groups, species were highly individualistic with respect to the global change simulation, particularly within the forbs, whereas within the shrubs, responses were neutral to negative and widely variable in magnitude. In the heath community the response of the graminoid functional group was driven almost entirely by the grass Calamagrostis lapponica, which increased in abundance by an order of magnitude in the combined temperature and nutrient treatment. Furthermore, community context was important for species' responses to the simulations. Abundance of the pan-arctic species Carex bigelowii and Vaccinium vitis-idaea responded primarily to the temperature treatment in the meadow community whereas the nutrient treatment had stronger effects in the heath community. Over six growing seasons, more new species appeared in the experimental plots than in control plots in the meadow community, whereas in the heath community only one new species appeared. Our results from two closely situated but different plant communities show that functional groups do not predict individual species responses to simulated global change, and that these responses depend to a large extent on pre-existing physical conditions as well as biotic interactions such as competition and facilitation. It may be difficult to apply general trends of global change responses to specific local communities. Article in Journal/Newspaper Arctic Carex bigelowii Climate change Northern Sweden Subarctic Tundra Jönköping Univ.: Publications (DiVA) Arctic Latnjajaure ENVELOPE(18.485,18.485,68.359,68.359) Ecosphere 6 11 art227 |
institution |
Open Polar |
collection |
Jönköping Univ.: Publications (DiVA) |
op_collection_id |
ftjoenkoepinguni |
language |
English |
topic |
Calamagrostis lapponica Carex bigelowii global change heath Latnjajaure Sweden meadow nutrient addition plant community composition subalpine tundra Vaccinium vitis-idaea warming Ecology Ekologi |
spellingShingle |
Calamagrostis lapponica Carex bigelowii global change heath Latnjajaure Sweden meadow nutrient addition plant community composition subalpine tundra Vaccinium vitis-idaea warming Ecology Ekologi Little, Chelsea J. Jägerbrand, Annika K. Molau, Ulf Alatalo, Juha M. Community and species-specific responses to simulated global change in two subarctic-alpine plant communities |
topic_facet |
Calamagrostis lapponica Carex bigelowii global change heath Latnjajaure Sweden meadow nutrient addition plant community composition subalpine tundra Vaccinium vitis-idaea warming Ecology Ekologi |
description |
Long-term observational studies have detected greening and shrub encroachment in the subarctic attributed to current climate change, while global change simulations have showed that community composition and productivity may shift drastically in arctic, subarctic, and alpine tundra plant communities in the future. However, responses to global change can be highly species-and context-dependent. We examined community-level and species-specific responses to a six-year factorial temperature and nutrient (nitrogen and phosphorus) amendment experiment in two alpine plant communities in northern Sweden: a species-poor dwarf shrub heath, and a more species-rich meadow. We hypothesized that abundance responses to global change would be variable within commonly defined vascular plant functional groups (e.g., forbs, evergreen shrubs, deciduous shrubs) and that new species would appear in experimental plots over time due to the ameliorated growing conditions. We found that within most functional groups, species were highly individualistic with respect to the global change simulation, particularly within the forbs, whereas within the shrubs, responses were neutral to negative and widely variable in magnitude. In the heath community the response of the graminoid functional group was driven almost entirely by the grass Calamagrostis lapponica, which increased in abundance by an order of magnitude in the combined temperature and nutrient treatment. Furthermore, community context was important for species' responses to the simulations. Abundance of the pan-arctic species Carex bigelowii and Vaccinium vitis-idaea responded primarily to the temperature treatment in the meadow community whereas the nutrient treatment had stronger effects in the heath community. Over six growing seasons, more new species appeared in the experimental plots than in control plots in the meadow community, whereas in the heath community only one new species appeared. Our results from two closely situated but different plant communities show that functional groups do not predict individual species responses to simulated global change, and that these responses depend to a large extent on pre-existing physical conditions as well as biotic interactions such as competition and facilitation. It may be difficult to apply general trends of global change responses to specific local communities. |
format |
Article in Journal/Newspaper |
author |
Little, Chelsea J. Jägerbrand, Annika K. Molau, Ulf Alatalo, Juha M. |
author_facet |
Little, Chelsea J. Jägerbrand, Annika K. Molau, Ulf Alatalo, Juha M. |
author_sort |
Little, Chelsea J. |
title |
Community and species-specific responses to simulated global change in two subarctic-alpine plant communities |
title_short |
Community and species-specific responses to simulated global change in two subarctic-alpine plant communities |
title_full |
Community and species-specific responses to simulated global change in two subarctic-alpine plant communities |
title_fullStr |
Community and species-specific responses to simulated global change in two subarctic-alpine plant communities |
title_full_unstemmed |
Community and species-specific responses to simulated global change in two subarctic-alpine plant communities |
title_sort |
community and species-specific responses to simulated global change in two subarctic-alpine plant communities |
publisher |
Uppsala universitet, Institutionen för ekologi och genetik |
publishDate |
2015 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-40278 https://doi.org/10.1890/ES14-00427.1 |
long_lat |
ENVELOPE(18.485,18.485,68.359,68.359) |
geographic |
Arctic Latnjajaure |
geographic_facet |
Arctic Latnjajaure |
genre |
Arctic Carex bigelowii Climate change Northern Sweden Subarctic Tundra |
genre_facet |
Arctic Carex bigelowii Climate change Northern Sweden Subarctic Tundra |
op_relation |
Ecosphere, 2150-8925, 2015, 6:11, http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-40278 doi:10.1890/ES14-00427.1 ISI:000367310600018 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1890/ES14-00427.1 |
container_title |
Ecosphere |
container_volume |
6 |
container_issue |
11 |
container_start_page |
art227 |
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1766336665023938560 |