Temperature impact on the influence of penguin‐derived nutrients and mosses on non‐native grass in a simulated polar ecosystem
Human activity and climate change are increasing the spread of species across the planet, threatening biodiversity and ecosystem functions. Invasion engineers, such as birds, facilitate plant growth through manuring of soil, while native vegetation influences plant germination by creating suitable m...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9299205/ http://www.ncbi.nlm.nih.gov/pubmed/34747548 https://doi.org/10.1111/gcb.15979 |
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ftpubmed:oai:pubmedcentral.nih.gov:9299205 2023-05-15T13:38:10+02:00 Temperature impact on the influence of penguin‐derived nutrients and mosses on non‐native grass in a simulated polar ecosystem Bokhorst, Stef Convey, Peter van Logtestijn, Richard Aerts, Rien 2021-11-19 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9299205/ http://www.ncbi.nlm.nih.gov/pubmed/34747548 https://doi.org/10.1111/gcb.15979 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9299205/ http://www.ncbi.nlm.nih.gov/pubmed/34747548 http://dx.doi.org/10.1111/gcb.15979 © 2021 The Authors. Global Change Biology published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by-nc/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. CC-BY-NC Glob Chang Biol Primary Research Articles Text 2021 ftpubmed https://doi.org/10.1111/gcb.15979 2022-07-31T02:18:43Z Human activity and climate change are increasing the spread of species across the planet, threatening biodiversity and ecosystem functions. Invasion engineers, such as birds, facilitate plant growth through manuring of soil, while native vegetation influences plant germination by creating suitable microhabitats which are especially valuable in cold and dry polar regions. Here we tested how penguin‐derived nitrogen, several common Antarctic moss species and warming affect seed germination and growth of the non‐native grass Agrostis capillaris under laboratory conditions. Experimental settings included a simulation of contemporary season‐specific Antarctic light and temperature (2°C) conditions and a +5°C warming scenario. Mosses (Andreaea depressinervis, A. regularis, Sanionia uncinata and Chorisodontium aciphyllum) incorporated a range of nitrogen content and isotopic nitrogen signatures (δ(15)N) due to variation in sampling proximity to penguin colonies. Moss species greatly affected time to germination with consequences for further growth under the simulated Antarctic conditions. Grass seeds germinated 10 days earlier among A. regularis compared to S. uncinata and C. aciphyllum and 26 days earlier compared to A. depressinervis. Moss‐specific effects are likely related to microclimatic differences within the moss canopy. Warming reduced this moss influence. Grass emerged on average 20 days earlier under warming, leading to increased leaf count (88%), plant height (112%) and biomass (145%). Positive correlations were identified between moss and grass nitrogen content (r = 0.377), grass biomass (r = 0.332) and height (r = 0.742) with stronger effects under the warming scenario. Transfer of nitrogen from moss to grass was confirmed by δ(15)N (r = 0.803). Overall, the results suggest a shift from temperature‐limited to N‐limited growth of invasive plants under increased warming in the maritime Antarctic. Text Antarc* Antarctic PubMed Central (PMC) Antarctic Global Change Biology 28 3 816 828 |
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Primary Research Articles |
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Primary Research Articles Bokhorst, Stef Convey, Peter van Logtestijn, Richard Aerts, Rien Temperature impact on the influence of penguin‐derived nutrients and mosses on non‐native grass in a simulated polar ecosystem |
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Primary Research Articles |
description |
Human activity and climate change are increasing the spread of species across the planet, threatening biodiversity and ecosystem functions. Invasion engineers, such as birds, facilitate plant growth through manuring of soil, while native vegetation influences plant germination by creating suitable microhabitats which are especially valuable in cold and dry polar regions. Here we tested how penguin‐derived nitrogen, several common Antarctic moss species and warming affect seed germination and growth of the non‐native grass Agrostis capillaris under laboratory conditions. Experimental settings included a simulation of contemporary season‐specific Antarctic light and temperature (2°C) conditions and a +5°C warming scenario. Mosses (Andreaea depressinervis, A. regularis, Sanionia uncinata and Chorisodontium aciphyllum) incorporated a range of nitrogen content and isotopic nitrogen signatures (δ(15)N) due to variation in sampling proximity to penguin colonies. Moss species greatly affected time to germination with consequences for further growth under the simulated Antarctic conditions. Grass seeds germinated 10 days earlier among A. regularis compared to S. uncinata and C. aciphyllum and 26 days earlier compared to A. depressinervis. Moss‐specific effects are likely related to microclimatic differences within the moss canopy. Warming reduced this moss influence. Grass emerged on average 20 days earlier under warming, leading to increased leaf count (88%), plant height (112%) and biomass (145%). Positive correlations were identified between moss and grass nitrogen content (r = 0.377), grass biomass (r = 0.332) and height (r = 0.742) with stronger effects under the warming scenario. Transfer of nitrogen from moss to grass was confirmed by δ(15)N (r = 0.803). Overall, the results suggest a shift from temperature‐limited to N‐limited growth of invasive plants under increased warming in the maritime Antarctic. |
format |
Text |
author |
Bokhorst, Stef Convey, Peter van Logtestijn, Richard Aerts, Rien |
author_facet |
Bokhorst, Stef Convey, Peter van Logtestijn, Richard Aerts, Rien |
author_sort |
Bokhorst, Stef |
title |
Temperature impact on the influence of penguin‐derived nutrients and mosses on non‐native grass in a simulated polar ecosystem |
title_short |
Temperature impact on the influence of penguin‐derived nutrients and mosses on non‐native grass in a simulated polar ecosystem |
title_full |
Temperature impact on the influence of penguin‐derived nutrients and mosses on non‐native grass in a simulated polar ecosystem |
title_fullStr |
Temperature impact on the influence of penguin‐derived nutrients and mosses on non‐native grass in a simulated polar ecosystem |
title_full_unstemmed |
Temperature impact on the influence of penguin‐derived nutrients and mosses on non‐native grass in a simulated polar ecosystem |
title_sort |
temperature impact on the influence of penguin‐derived nutrients and mosses on non‐native grass in a simulated polar ecosystem |
publisher |
John Wiley and Sons Inc. |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9299205/ http://www.ncbi.nlm.nih.gov/pubmed/34747548 https://doi.org/10.1111/gcb.15979 |
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Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Glob Chang Biol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9299205/ http://www.ncbi.nlm.nih.gov/pubmed/34747548 http://dx.doi.org/10.1111/gcb.15979 |
op_rights |
© 2021 The Authors. Global Change Biology published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by-nc/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. |
op_rightsnorm |
CC-BY-NC |
op_doi |
https://doi.org/10.1111/gcb.15979 |
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Global Change Biology |
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28 |
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3 |
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816 |
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828 |
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