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Decomposability of lichens and bryophytes from across an elevational gradient under standardized conditions

van Zuijlen, Kristel and Roos, Ruben E. and Klanderud, Kari and Lang, Simone I. and Wardle, David and Asplund, Johan (2020). Decomposability of lichens and bryophytes from across an elevational gradient under standardized conditions. Oikos. 129 , 1358-1368
[Journal article]

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Abstract

Lichens and bryophytes are abundant primary producers in high latitude and high elevation ecosystems, and they play an important role in ecosystem processes such as decomposition and nutrient cycling. Despite their importance, little is known about the decomposability of lichens and bryophytes either among or within species, at the whole community level, or how this decomposability is affected by their functional traits. Here, we studied decomposability of lichens and bryophytes at the community-level and individual species-level (using 21 species and genera) collected from an elevational gradient in alpine Norway. In order to isolate the elevation effect on litter quality, we used a standardized laboratory bioassay to measure decomposability. In contrast to our expectations, we found that community-level decomposability of lichens and bryophytes increased with elevation and thus decreasing temperature. In contrast, phosphorus release from the litter decreased with elevation while nitrogen release was unresponsive. Decomposability was explained by nutrient concentrations, litter pH and primary producer group identity (lichens versus bryophytes) at both the individual species and community levels. Species turnover (changes in species composition and abundance) was the main driver of decomposability across elevation at the community level, despite some of the traits explaining decomposability showing high intraspecific variability. Our study highlights the importance of among-species variation in determining lichen and bryophyte decomposability. Further, the higher decomposability that we found for higher elevations suggests that global warming might result in a shift towards slower decomposable lichen and bryophyte species.

Authors/Creators:van Zuijlen, Kristel and Roos, Ruben E. and Klanderud, Kari and Lang, Simone I. and Wardle, David and Asplund, Johan
Title:Decomposability of lichens and bryophytes from across an elevational gradient under standardized conditions
Year of publishing :2020
Volume:129
Page range:1358-1368
Number of Pages:11
ISSN:0030-1299
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 3.0
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, cryptogams, decomposition, elevational gradient, functional traits, tundra
URN:NBN:urn:nbn:se:slu:epsilon-p-106720
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-106720
Additional ID:
Type of IDID
DOI10.1111/oik.07257
Web of Science (WoS)000539776700001
ID Code:17621
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Forest Ecology and Management
Deposited By: SLUpub Connector
Deposited On:29 Sep 2020 11:15
Metadata Last Modified:29 Sep 2020 11:21

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