Impacts of seven years of experimental warming and nutrient addition on neighbourhood species interactions and community structure in two contrasting alpine plant communities
Global change is predicted to have major impacts on alpine and arctic ecosystems. Plant fitness and growth will be determined by how plants interact with each other at smaller scales. Local-scale neighbourhood interactions may be altered by environmental pertubations, which could fundamentally affec...
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ftqataruniv:oai:qspace.qu.edu.qa:10576/40048 2023-05-15T15:16:15+02:00 Impacts of seven years of experimental warming and nutrient addition on neighbourhood species interactions and community structure in two contrasting alpine plant communities Gaurav, Baruah Molau, Ulf Jägerbrand, Annika K. Alatalo, Juha M. application/pdf http://hdl.handle.net/10576/40048 https://doi.org/10.1016/j.ecocom.2017.11.003 https://www.sciencedirect.com/science/article/pii/S1476945X17301101 en eng Elsevier http://dx.doi.org/10.1016/j.ecocom.2017.11.003 1476945X https://www.sciencedirect.com/science/article/pii/S1476945X17301101 http://hdl.handle.net/10576/40048 31-40 33 Climate change Global change Network dissimilarity Plant interactions Polar regions Article ftqataruniv https://doi.org/10.1016/j.ecocom.2017.11.003 2023-02-21T01:26:31Z Global change is predicted to have major impacts on alpine and arctic ecosystems. Plant fitness and growth will be determined by how plants interact with each other at smaller scales. Local-scale neighbourhood interactions may be altered by environmental pertubations, which could fundamentally affect community structure. This study examined the effects of seven years of experimental warming and nutrient addition on overall changes in the community structure and patterns of interspecific interaction between neighbouring plant species in two contrasting alpine plant communities, mesic meadow and poor heath, in subarctic Sweden. We used a network approach to quantify the dissimilarity of plant interaction networks and the average number of interspecific neighbourhood interactions over time in response to different environmental perturbations. The results revealed that combined warming and nutrient addition had significant negative effects on how dissimilar plant interaction networks were over time compared with the control. Moreover, plant–plant neighbourhood interaction networks were more dissimilar over time in nutrient-poor heath than in nutrient-rich mesic meadow. In addition, nutrient addition alone and combined nutrient addition and warming significantly affected neighbourhood species interactions in both plant communities. Surprisingly, changes in interspecific neighbourhood interactions over time in both communities were very similar, suggesting that the nutrient-poor heath is as robust to experimental environmental perturbation as the mesic meadow. Comparisons of changes in neighbouring species interactions with changes in evenness and richness at the same scale, in order to determine whether diversity drove such changes in local-scale interaction patterns, provided moderate evidence that diversity was behind the changes in local-scale interspecific neighbourhood interactions. This implied that species might interact at smaller scales than those at which community measures were made. Overall, these results ... Article in Journal/Newspaper Arctic Climate change Subarctic Qatar University: QU Institutional Repository Arctic Ecological Complexity 33 31 40 |
institution |
Open Polar |
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Qatar University: QU Institutional Repository |
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ftqataruniv |
language |
English |
topic |
Climate change Global change Network dissimilarity Plant interactions Polar regions |
spellingShingle |
Climate change Global change Network dissimilarity Plant interactions Polar regions Gaurav, Baruah Molau, Ulf Jägerbrand, Annika K. Alatalo, Juha M. Impacts of seven years of experimental warming and nutrient addition on neighbourhood species interactions and community structure in two contrasting alpine plant communities |
topic_facet |
Climate change Global change Network dissimilarity Plant interactions Polar regions |
description |
Global change is predicted to have major impacts on alpine and arctic ecosystems. Plant fitness and growth will be determined by how plants interact with each other at smaller scales. Local-scale neighbourhood interactions may be altered by environmental pertubations, which could fundamentally affect community structure. This study examined the effects of seven years of experimental warming and nutrient addition on overall changes in the community structure and patterns of interspecific interaction between neighbouring plant species in two contrasting alpine plant communities, mesic meadow and poor heath, in subarctic Sweden. We used a network approach to quantify the dissimilarity of plant interaction networks and the average number of interspecific neighbourhood interactions over time in response to different environmental perturbations. The results revealed that combined warming and nutrient addition had significant negative effects on how dissimilar plant interaction networks were over time compared with the control. Moreover, plant–plant neighbourhood interaction networks were more dissimilar over time in nutrient-poor heath than in nutrient-rich mesic meadow. In addition, nutrient addition alone and combined nutrient addition and warming significantly affected neighbourhood species interactions in both plant communities. Surprisingly, changes in interspecific neighbourhood interactions over time in both communities were very similar, suggesting that the nutrient-poor heath is as robust to experimental environmental perturbation as the mesic meadow. Comparisons of changes in neighbouring species interactions with changes in evenness and richness at the same scale, in order to determine whether diversity drove such changes in local-scale interaction patterns, provided moderate evidence that diversity was behind the changes in local-scale interspecific neighbourhood interactions. This implied that species might interact at smaller scales than those at which community measures were made. Overall, these results ... |
format |
Article in Journal/Newspaper |
author |
Gaurav, Baruah Molau, Ulf Jägerbrand, Annika K. Alatalo, Juha M. |
author_facet |
Gaurav, Baruah Molau, Ulf Jägerbrand, Annika K. Alatalo, Juha M. |
author_sort |
Gaurav, Baruah |
title |
Impacts of seven years of experimental warming and nutrient addition on neighbourhood species interactions and community structure in two contrasting alpine plant communities |
title_short |
Impacts of seven years of experimental warming and nutrient addition on neighbourhood species interactions and community structure in two contrasting alpine plant communities |
title_full |
Impacts of seven years of experimental warming and nutrient addition on neighbourhood species interactions and community structure in two contrasting alpine plant communities |
title_fullStr |
Impacts of seven years of experimental warming and nutrient addition on neighbourhood species interactions and community structure in two contrasting alpine plant communities |
title_full_unstemmed |
Impacts of seven years of experimental warming and nutrient addition on neighbourhood species interactions and community structure in two contrasting alpine plant communities |
title_sort |
impacts of seven years of experimental warming and nutrient addition on neighbourhood species interactions and community structure in two contrasting alpine plant communities |
publisher |
Elsevier |
url |
http://hdl.handle.net/10576/40048 https://doi.org/10.1016/j.ecocom.2017.11.003 https://www.sciencedirect.com/science/article/pii/S1476945X17301101 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Subarctic |
genre_facet |
Arctic Climate change Subarctic |
op_relation |
http://dx.doi.org/10.1016/j.ecocom.2017.11.003 1476945X https://www.sciencedirect.com/science/article/pii/S1476945X17301101 http://hdl.handle.net/10576/40048 31-40 33 |
op_doi |
https://doi.org/10.1016/j.ecocom.2017.11.003 |
container_title |
Ecological Complexity |
container_volume |
33 |
container_start_page |
31 |
op_container_end_page |
40 |
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1766346545572085760 |