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Contrasting responses of plant and lichen carbon-based secondary compounds across an elevational gradient

Asplund, Johan and van Zuijlen, Kristel and Roos, Ruben E. and Birkemoe, Tone and Klanderud, Kari and Lang, Simone and Wardle, David and Nybakken, Line (2021). Contrasting responses of plant and lichen carbon-based secondary compounds across an elevational gradient. Functional Ecology. 35 , 330-341
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Abstract

Vascular plants and lichens often produce a diversity of carbon-based secondary compounds (CBSCs) to protect them against biotic and abiotic stresses. These compounds play important but often compound-specific roles in community and ecosystem processes by affecting herbivore and decomposer activity. However, our understanding of what drives community-level CBSCs among ecosystems or across environmental gradients is limited.We measured concentrations and compositions of CBSCs for all dominant vascular plant and lichen species present across a 500-m alpine elevational gradient. These measurements were combined with data on species composition and abundance to obtain whole-community measures of plant and lichen CBSCs across the gradient.At the whole community level, plant CBSCs had the lowest concentrations while lichen CBSCs had the highest concentrations at the highest elevations. Further, plant CBCSs shifted from those associated with herbivore defence towards those protecting against light and oxidative stress as elevation increased, while lichen CBSCs showed the opposite pattern.Synthesis. Our findings that individual compounds show contrasting responses to the same environmental gradient highlight the importance of studying qualitative as well as quantitative changes in CBSCs. Further, the divergent responses between vascular plants and lichens reveal that in systems where both groups are abundant, they need to be considered simultaneously to better understand how future environmental changes may impact on ecosystem-level processes.A free Plain Language Summary can be found within the Supporting Information of this article.

Authors/Creators:Asplund, Johan and van Zuijlen, Kristel and Roos, Ruben E. and Birkemoe, Tone and Klanderud, Kari and Lang, Simone and Wardle, David and Nybakken, Line
Title:Contrasting responses of plant and lichen carbon-based secondary compounds across an elevational gradient
Series Name/Journal:Functional Ecology
Year of publishing :2021
Volume:35
Page range:330-341
Number of Pages:12
Publisher:WILEY
ISSN:0269-8463
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:alpine ecology, defence, Finse Alpine Research Centre, flavonoids, lichens, phenols, tannins, vascular plants
URN:NBN:urn:nbn:se:slu:epsilon-p-109388
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-109388
Additional ID:
Type of IDID
DOI10.1111/1365-2435.13712
Web of Science (WoS)000591440800001
ID Code:22160
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Forest Ecology and Management
Deposited By: SLUpub Connector
Deposited On:09 Feb 2021 07:55
Metadata Last Modified:09 Feb 2021 08:01

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