Invasive grasses of sub-Antarctic Marion Island respond to increasing temperatures at the expense of chilling tolerance
BACKGROUND AND AIMS: Global warming has large effects on the performance and spatial distribution of plants, and increasingly facilitates the spread of invasive species. Particularly vulnerable is the vegetation of cold environments where indigenous plants selected for cold tolerance can have reduce...
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ftpubmed:oai:pubmedcentral.nih.gov:7182586 2023-05-15T13:42:31+02:00 Invasive grasses of sub-Antarctic Marion Island respond to increasing temperatures at the expense of chilling tolerance Ripley, Brad S Edwardes, Amy Rossouw, Marius W Smith, Valdon R Midgley, Guy F 2020-04 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7182586/ http://www.ncbi.nlm.nih.gov/pubmed/31583397 https://doi.org/10.1093/aob/mcz156 en eng Oxford University Press http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7182586/ http://www.ncbi.nlm.nih.gov/pubmed/31583397 http://dx.doi.org/10.1093/aob/mcz156 © The Author 2019. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oup.com https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model) Ann Bot Original Articles Text 2020 ftpubmed https://doi.org/10.1093/aob/mcz156 2021-05-02T00:19:20Z BACKGROUND AND AIMS: Global warming has large effects on the performance and spatial distribution of plants, and increasingly facilitates the spread of invasive species. Particularly vulnerable is the vegetation of cold environments where indigenous plants selected for cold tolerance can have reduced phenotypic plasticity and associated lower capacity to respond to warming temperatures. In contrast, invasive species can be phenotypically plastic and respond positively to climate change, but at the expense of stress tolerance. METHODS: We investigate this trade-off in traits, measuring the photosynthetic response to warming, chilling tolerance and specific leaf area (SLA) of Pooid grasses. We compare this between invasive and non-invasive grasses and correlate this to their range expansions on a cold sub-Antarctic island that has warmed significantly in the past five decades. We determined whether these responses remained consistent after temperature acclimation. KEY RESULTS: Invasive species responded strongly to warming, increasing photosynthetic rates by up to 2-fold, while non-invasive species did not respond. The response was associated with increased stomatal conductance, but not with modified photosynthetic metabolism. Electrolyte leakage and SLA were higher in invasive than in non-invasive species. Acclimation altered the photosynthetic response and invasive species responded to warm temperatures irrespective of acclimation, while non-invasive species responded only after acclimation to warm temperature. CONCLUSIONS: Traits scaled linearly with rates of range expansion and demonstrate that under sub-Antarctic conditions, anthropogenic warming over the last 50 years may have favoured species with greater capacity to respond photosynthetically to warming to the detriment of species that cannot, and negated the advantage that chilling tolerance would have conferred on endemic species in the past. This suggests that species of cold ecosystems could be particularly vulnerable to warming as selection for stress ... Text Antarc* Antarctic Marion Island PubMed Central (PMC) Antarctic Annals of Botany 125 5 765 773 |
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Original Articles Ripley, Brad S Edwardes, Amy Rossouw, Marius W Smith, Valdon R Midgley, Guy F Invasive grasses of sub-Antarctic Marion Island respond to increasing temperatures at the expense of chilling tolerance |
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Original Articles |
description |
BACKGROUND AND AIMS: Global warming has large effects on the performance and spatial distribution of plants, and increasingly facilitates the spread of invasive species. Particularly vulnerable is the vegetation of cold environments where indigenous plants selected for cold tolerance can have reduced phenotypic plasticity and associated lower capacity to respond to warming temperatures. In contrast, invasive species can be phenotypically plastic and respond positively to climate change, but at the expense of stress tolerance. METHODS: We investigate this trade-off in traits, measuring the photosynthetic response to warming, chilling tolerance and specific leaf area (SLA) of Pooid grasses. We compare this between invasive and non-invasive grasses and correlate this to their range expansions on a cold sub-Antarctic island that has warmed significantly in the past five decades. We determined whether these responses remained consistent after temperature acclimation. KEY RESULTS: Invasive species responded strongly to warming, increasing photosynthetic rates by up to 2-fold, while non-invasive species did not respond. The response was associated with increased stomatal conductance, but not with modified photosynthetic metabolism. Electrolyte leakage and SLA were higher in invasive than in non-invasive species. Acclimation altered the photosynthetic response and invasive species responded to warm temperatures irrespective of acclimation, while non-invasive species responded only after acclimation to warm temperature. CONCLUSIONS: Traits scaled linearly with rates of range expansion and demonstrate that under sub-Antarctic conditions, anthropogenic warming over the last 50 years may have favoured species with greater capacity to respond photosynthetically to warming to the detriment of species that cannot, and negated the advantage that chilling tolerance would have conferred on endemic species in the past. This suggests that species of cold ecosystems could be particularly vulnerable to warming as selection for stress ... |
format |
Text |
author |
Ripley, Brad S Edwardes, Amy Rossouw, Marius W Smith, Valdon R Midgley, Guy F |
author_facet |
Ripley, Brad S Edwardes, Amy Rossouw, Marius W Smith, Valdon R Midgley, Guy F |
author_sort |
Ripley, Brad S |
title |
Invasive grasses of sub-Antarctic Marion Island respond to increasing temperatures at the expense of chilling tolerance |
title_short |
Invasive grasses of sub-Antarctic Marion Island respond to increasing temperatures at the expense of chilling tolerance |
title_full |
Invasive grasses of sub-Antarctic Marion Island respond to increasing temperatures at the expense of chilling tolerance |
title_fullStr |
Invasive grasses of sub-Antarctic Marion Island respond to increasing temperatures at the expense of chilling tolerance |
title_full_unstemmed |
Invasive grasses of sub-Antarctic Marion Island respond to increasing temperatures at the expense of chilling tolerance |
title_sort |
invasive grasses of sub-antarctic marion island respond to increasing temperatures at the expense of chilling tolerance |
publisher |
Oxford University Press |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7182586/ http://www.ncbi.nlm.nih.gov/pubmed/31583397 https://doi.org/10.1093/aob/mcz156 |
geographic |
Antarctic |
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Antarctic |
genre |
Antarc* Antarctic Marion Island |
genre_facet |
Antarc* Antarctic Marion Island |
op_source |
Ann Bot |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7182586/ http://www.ncbi.nlm.nih.gov/pubmed/31583397 http://dx.doi.org/10.1093/aob/mcz156 |
op_rights |
© The Author 2019. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oup.com https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model) |
op_doi |
https://doi.org/10.1093/aob/mcz156 |
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Annals of Botany |
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125 |
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5 |
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765 |
op_container_end_page |
773 |
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1766168962852192256 |