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Weak recovery of epiphytic lichen communities in Sweden over 20 years of rapid air pollution decline

Weldon, James and Grandin, Ulf (2021). Weak recovery of epiphytic lichen communities in Sweden over 20 years of rapid air pollution decline. Lichenologist. 53 , PII S0024282921000037 , 203-213
[Research article]

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Abstract

Epiphytic lichens are sensitive to deteriorating air quality, but levels of nitrogen and especially sulphur deposition have been in decline over most of Europe in recent decades. We assessed the response of epiphytic lichens to this decline, using data from long-term monitoring sites in Sweden. We analyzed 20 years of data to investigate temporal trends in lichen communities' sensitivity to sulphur, nitrogen preference, species richness and alpha and beta diversity. We found only limited and partial evidence of recovery in the area that previously had high levels of deposition, and a decline in mean sulphur sensitivity at a northern site with low deposition levels throughout the monitoring period. The slow recolonization of sensitive species, even where environmental conditions are now suitable, is probably a result of impoverished regional species pools and the inherent limited dispersal capacity of many lichen species. We suggest due consideration of these factors in the use of epiphytic lichens as environmental indicators in a period of improving air quality.

Authors/Creators:Weldon, James and Grandin, Ulf
Title:Weak recovery of epiphytic lichen communities in Sweden over 20 years of rapid air pollution decline
Series Name/Journal:Lichenologist
Year of publishing :2021
Volume:53
Article number:PII S0024282921000037
Number of Pages:11
Publisher:CAMBRIDGE UNIV PRESS
ISSN:0024-2829
Language:English
Publication Type:Research 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 > 105 Earth and Related Environmental Sciences > Environmental Sciences (social aspects to be 507)
Keywords:dispersal, diversity, epiphytes, lichens, long-term monitoring
URN:NBN:urn:nbn:se:slu:epsilon-p-111435
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-111435
Additional ID:
Type of IDID
DOI10.1017/S0024282921000037
Web of Science (WoS)000630399300005
ID Code:23272
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Aquatic Sciences and Assessment
Deposited By: SLUpub Connector
Deposited On:15 Apr 2021 10:03
Metadata Last Modified:15 Apr 2021 10:11

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