Lichen specific thallus mass and secondary compounds change across a retrogressive fire-driven chronosequence
In the long-term absence of major disturbances ecosystems enter a state of retrogression, which involves declining soil fertility and consequently a reduction in decomposition rates. Recent studies have looked at how plant traits such as specific leaf mass and amounts of secondary compounds respond...
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Online Access: | https://pub.epsilon.slu.se/9232/ https://pub.epsilon.slu.se/9232/1/asplund_a_121113.pdf https://doi.org/10.1371/journal.pone.0049081 |
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ftslunivuppsala:oai:pub.epsilon.slu.se:9232 2023-05-15T17:44:54+02:00 Lichen specific thallus mass and secondary compounds change across a retrogressive fire-driven chronosequence Asplund, Johan Sandling, Aron Wardle, David A. 2012-11-08 application/pdf https://pub.epsilon.slu.se/9232/ https://pub.epsilon.slu.se/9232/1/asplund_a_121113.pdf https://doi.org/10.1371/journal.pone.0049081 en eng eng https://pub.epsilon.slu.se/9232/1/asplund_a_121113.pdf Asplund, Johan and Sandling, Aron and Wardle, David A. (2012). Lichen specific thallus mass and secondary compounds change across a retrogressive fire-driven chronosequence. PloS one. 7 :11 , e49081 [Research article] Ecology Research article PeerReviewed 2012 ftslunivuppsala https://doi.org/10.1371/journal.pone.0049081 2022-01-09T19:12:27Z In the long-term absence of major disturbances ecosystems enter a state of retrogression, which involves declining soil fertility and consequently a reduction in decomposition rates. Recent studies have looked at how plant traits such as specific leaf mass and amounts of secondary compounds respond to declining soil fertility during retrogression, but there are no comparable studies for lichen traits despite increasing recognition of the role that lichens can play in ecosystem processes. We studied a group of 30 forested islands in northern Sweden differing greatly in fire history, and collectively representing a retrogressive chronosequence, spanning 5000 years. We used this system to explore how specific thallus mass (STM) and carbon based secondary compounds (CBSCs) change in three common epiphytic lichen species (Hypogymnia phsyodes, Melanohalea olivacea and Parmelia sulcata) as soil fertility declines during this retrogression. We found that STMs of lichens increased sharply during retrogression, and for all species soil N to P ratio (which increased during retrogression) was a strong predictor of STM. When expressed per unit area, medullary CBSCs in all species and cortical CBSCs in P. sulcata increased during retrogression. Meanwhile, when expressed per unit mass, only cortical CBSCs in H. physodes responded to retrogression, and in the opposite direction. Given that lichen functional traits are likely to be important in driving ecological processes that drive nutrient and carbon cycling in the way that plant functional traits are, the changes that they undergo during retrogression could potentially be significant for the functioning of the ecosystem. Article in Journal/Newspaper Northern Sweden Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive PLoS ONE 7 11 e49081 |
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Open Polar |
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Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive |
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ftslunivuppsala |
language |
English |
topic |
Ecology |
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Ecology Asplund, Johan Sandling, Aron Wardle, David A. Lichen specific thallus mass and secondary compounds change across a retrogressive fire-driven chronosequence |
topic_facet |
Ecology |
description |
In the long-term absence of major disturbances ecosystems enter a state of retrogression, which involves declining soil fertility and consequently a reduction in decomposition rates. Recent studies have looked at how plant traits such as specific leaf mass and amounts of secondary compounds respond to declining soil fertility during retrogression, but there are no comparable studies for lichen traits despite increasing recognition of the role that lichens can play in ecosystem processes. We studied a group of 30 forested islands in northern Sweden differing greatly in fire history, and collectively representing a retrogressive chronosequence, spanning 5000 years. We used this system to explore how specific thallus mass (STM) and carbon based secondary compounds (CBSCs) change in three common epiphytic lichen species (Hypogymnia phsyodes, Melanohalea olivacea and Parmelia sulcata) as soil fertility declines during this retrogression. We found that STMs of lichens increased sharply during retrogression, and for all species soil N to P ratio (which increased during retrogression) was a strong predictor of STM. When expressed per unit area, medullary CBSCs in all species and cortical CBSCs in P. sulcata increased during retrogression. Meanwhile, when expressed per unit mass, only cortical CBSCs in H. physodes responded to retrogression, and in the opposite direction. Given that lichen functional traits are likely to be important in driving ecological processes that drive nutrient and carbon cycling in the way that plant functional traits are, the changes that they undergo during retrogression could potentially be significant for the functioning of the ecosystem. |
format |
Article in Journal/Newspaper |
author |
Asplund, Johan Sandling, Aron Wardle, David A. |
author_facet |
Asplund, Johan Sandling, Aron Wardle, David A. |
author_sort |
Asplund, Johan |
title |
Lichen specific thallus mass and secondary compounds change across a retrogressive fire-driven chronosequence |
title_short |
Lichen specific thallus mass and secondary compounds change across a retrogressive fire-driven chronosequence |
title_full |
Lichen specific thallus mass and secondary compounds change across a retrogressive fire-driven chronosequence |
title_fullStr |
Lichen specific thallus mass and secondary compounds change across a retrogressive fire-driven chronosequence |
title_full_unstemmed |
Lichen specific thallus mass and secondary compounds change across a retrogressive fire-driven chronosequence |
title_sort |
lichen specific thallus mass and secondary compounds change across a retrogressive fire-driven chronosequence |
publishDate |
2012 |
url |
https://pub.epsilon.slu.se/9232/ https://pub.epsilon.slu.se/9232/1/asplund_a_121113.pdf https://doi.org/10.1371/journal.pone.0049081 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_relation |
https://pub.epsilon.slu.se/9232/1/asplund_a_121113.pdf Asplund, Johan and Sandling, Aron and Wardle, David A. (2012). Lichen specific thallus mass and secondary compounds change across a retrogressive fire-driven chronosequence. PloS one. 7 :11 , e49081 [Research article] |
op_doi |
https://doi.org/10.1371/journal.pone.0049081 |
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PLoS ONE |
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7 |
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11 |
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e49081 |
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