Complex biotic interactions drive long-term vegetation dynamics in a subarctic ecosystem
Predicting impacts of global warming requires understanding of the extent to which plant biomass and production are controlled by bottom-up and top-down drivers. By annually monitoring community composition in grazed control plots and herbivore-free exclosures at an Arctic location for 15 years, we...
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Open Polar |
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General Biochemistry Genetics and Molecular Biology General Agricultural and Biological Sciences Articles envir geo |
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General Biochemistry Genetics and Molecular Biology General Agricultural and Biological Sciences Articles envir geo Johan Olofsson Mariska te Beest Lars Ericson Complex biotic interactions drive long-term vegetation dynamics in a subarctic ecosystem |
topic_facet |
General Biochemistry Genetics and Molecular Biology General Agricultural and Biological Sciences Articles envir geo |
description |
Predicting impacts of global warming requires understanding of the extent to which plant biomass and production are controlled by bottom-up and top-down drivers. By annually monitoring community composition in grazed control plots and herbivore-free exclosures at an Arctic location for 15 years, we detected multiple biotic interactions. Regular rodent cycles acted as pulses driving synchronous fluctuations in the biomass of field-layer vegetation; reindeer influenced the biomass of taller shrubs, and the abundance of plant pathogenic fungi increased when densities of their host plants increased in exclosures. Two outbreaks of geometrid moths occurred during the study period, with contrasting effects on the field layer: one in 2004 had marginal effects, while one in 2012 severely reduced biomass in the control plots and eliminated biomass that had accumulated over 15 years in the exclosures. The latter was followed by a dramatic decline of the dominant understory dwarf-shrub Empetrum hermaphroditum , driven by an interaction between moth herbivory on top buds and leaves, and increased disease severity of a pathogenic fungus. We show that the climate has important direct and indirect effects on all these biotic interactions. We conclude that long time series are essential to identify key biotic interactions in ecosystems, since their importance will be influenced by climatic conditions, and that manipulative treatments are needed in order to obtain the mechanistic understanding needed for robust predictions of future ecosystem changes and their feedback effects. |
format |
Article in Journal/Newspaper |
author |
Johan Olofsson Mariska te Beest Lars Ericson |
author_facet |
Johan Olofsson Mariska te Beest Lars Ericson |
author_sort |
Johan Olofsson |
title |
Complex biotic interactions drive long-term vegetation dynamics in a subarctic ecosystem |
title_short |
Complex biotic interactions drive long-term vegetation dynamics in a subarctic ecosystem |
title_full |
Complex biotic interactions drive long-term vegetation dynamics in a subarctic ecosystem |
title_fullStr |
Complex biotic interactions drive long-term vegetation dynamics in a subarctic ecosystem |
title_full_unstemmed |
Complex biotic interactions drive long-term vegetation dynamics in a subarctic ecosystem |
title_sort |
complex biotic interactions drive long-term vegetation dynamics in a subarctic ecosystem |
publisher |
The Royal Society |
publishDate |
2013 |
url |
https://doi.org/10.1098/rstb.2012.0486 https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.2012.0486 https://royalsocietypublishing.org/doi/full-xml/10.1098/rstb.2012.0486 https://royalsocietypublishing.org/doi/10.1098/rstb.2012.0486 https://rstb.royalsocietypublishing.org/content/368/1624/20120486/ http://umu.diva-portal.org/smash/record.jsf?pid=diva2:648519 http://www.ncbi.nlm.nih.gov/pubmed/23836791 https://europepmc.org/articles/PMC3720058 http://www.diva-portal.org/smash/record.jsf?pid=diva2:1286271 https://paperity.org/p/48699991/complex-biotic-interactions-drive-long-term-vegetation-dynamics-in-a-subarctic-ecosystem https://academic.microsoft.com/#/detail/2099420111 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Global warming Subarctic |
genre_facet |
Arctic Global warming Subarctic |
op_source |
10.1098/rstb.2012.0486 23836791 2099420111 oai:pubmedcentral.nih.gov:3720058 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|openaire____::55045bd2a65019fd8e6741a755395c8c openaire____::1256f046-bf1f-4afc-8b47-d0b147148b18 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|issn___print::1040b975e361376430f13c94737f9602 10|openaire____::8ac8380272269217cb09a928c8caa993 10|openaire____::5f532a3fc4f1ea403f37070f59a7a53a 10|opendoar____::eda80a3d5b344bc40f3bc04f65b7a357 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c 10|openaire____::806360c771262b4d6770e7cdf04b5c5a |
op_relation |
http://dx.doi.org/10.1098/rstb.2012.0486 https://dx.doi.org/10.1098/rstb.2012.0486 https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.2012.0486 https://royalsocietypublishing.org/doi/full-xml/10.1098/rstb.2012.0486 https://royalsocietypublishing.org/doi/10.1098/rstb.2012.0486 https://rstb.royalsocietypublishing.org/content/368/1624/20120486/ http://umu.diva-portal.org/smash/record.jsf?pid=diva2:648519 http://www.ncbi.nlm.nih.gov/pubmed/23836791 https://europepmc.org/articles/PMC3720058 http://www.diva-portal.org/smash/record.jsf?pid=diva2:1286271 https://paperity.org/p/48699991/complex-biotic-interactions-drive-long-term-vegetation-dynamics-in-a-subarctic-ecosystem https://academic.microsoft.com/#/detail/2099420111 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1098/rstb.2012.0486 |
container_title |
Philosophical Transactions of the Royal Society B: Biological Sciences |
container_volume |
368 |
container_issue |
1624 |
container_start_page |
20120486 |
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1766341057631485952 |
spelling |
fttriple:oai:gotriple.eu:50|dedup_wf_001::7ec851f332b66fd26793dc6c5e59be78 2023-05-15T15:09:58+02:00 Complex biotic interactions drive long-term vegetation dynamics in a subarctic ecosystem Johan Olofsson Mariska te Beest Lars Ericson 2013-08-19 https://doi.org/10.1098/rstb.2012.0486 https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.2012.0486 https://royalsocietypublishing.org/doi/full-xml/10.1098/rstb.2012.0486 https://royalsocietypublishing.org/doi/10.1098/rstb.2012.0486 https://rstb.royalsocietypublishing.org/content/368/1624/20120486/ http://umu.diva-portal.org/smash/record.jsf?pid=diva2:648519 http://www.ncbi.nlm.nih.gov/pubmed/23836791 https://europepmc.org/articles/PMC3720058 http://www.diva-portal.org/smash/record.jsf?pid=diva2:1286271 https://paperity.org/p/48699991/complex-biotic-interactions-drive-long-term-vegetation-dynamics-in-a-subarctic-ecosystem https://academic.microsoft.com/#/detail/2099420111 undefined unknown The Royal Society http://dx.doi.org/10.1098/rstb.2012.0486 https://dx.doi.org/10.1098/rstb.2012.0486 https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.2012.0486 https://royalsocietypublishing.org/doi/full-xml/10.1098/rstb.2012.0486 https://royalsocietypublishing.org/doi/10.1098/rstb.2012.0486 https://rstb.royalsocietypublishing.org/content/368/1624/20120486/ http://umu.diva-portal.org/smash/record.jsf?pid=diva2:648519 http://www.ncbi.nlm.nih.gov/pubmed/23836791 https://europepmc.org/articles/PMC3720058 http://www.diva-portal.org/smash/record.jsf?pid=diva2:1286271 https://paperity.org/p/48699991/complex-biotic-interactions-drive-long-term-vegetation-dynamics-in-a-subarctic-ecosystem https://academic.microsoft.com/#/detail/2099420111 undefined 10.1098/rstb.2012.0486 23836791 2099420111 oai:pubmedcentral.nih.gov:3720058 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|openaire____::55045bd2a65019fd8e6741a755395c8c openaire____::1256f046-bf1f-4afc-8b47-d0b147148b18 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|issn___print::1040b975e361376430f13c94737f9602 10|openaire____::8ac8380272269217cb09a928c8caa993 10|openaire____::5f532a3fc4f1ea403f37070f59a7a53a 10|opendoar____::eda80a3d5b344bc40f3bc04f65b7a357 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c 10|openaire____::806360c771262b4d6770e7cdf04b5c5a General Biochemistry Genetics and Molecular Biology General Agricultural and Biological Sciences Articles envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2013 fttriple https://doi.org/10.1098/rstb.2012.0486 2023-01-22T17:22:43Z Predicting impacts of global warming requires understanding of the extent to which plant biomass and production are controlled by bottom-up and top-down drivers. By annually monitoring community composition in grazed control plots and herbivore-free exclosures at an Arctic location for 15 years, we detected multiple biotic interactions. Regular rodent cycles acted as pulses driving synchronous fluctuations in the biomass of field-layer vegetation; reindeer influenced the biomass of taller shrubs, and the abundance of plant pathogenic fungi increased when densities of their host plants increased in exclosures. Two outbreaks of geometrid moths occurred during the study period, with contrasting effects on the field layer: one in 2004 had marginal effects, while one in 2012 severely reduced biomass in the control plots and eliminated biomass that had accumulated over 15 years in the exclosures. The latter was followed by a dramatic decline of the dominant understory dwarf-shrub Empetrum hermaphroditum , driven by an interaction between moth herbivory on top buds and leaves, and increased disease severity of a pathogenic fungus. We show that the climate has important direct and indirect effects on all these biotic interactions. We conclude that long time series are essential to identify key biotic interactions in ecosystems, since their importance will be influenced by climatic conditions, and that manipulative treatments are needed in order to obtain the mechanistic understanding needed for robust predictions of future ecosystem changes and their feedback effects. Article in Journal/Newspaper Arctic Global warming Subarctic Unknown Arctic Philosophical Transactions of the Royal Society B: Biological Sciences 368 1624 20120486 |