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Estimates of abundance and biomass of cephalodia and their relationship to nitrogen deposition in some British populations of Lobaria pulmonaria (L.) Hoffm.

Published online by Cambridge University Press:  30 July 2021

Allan Pentecost Open the ORCID record for Allan Pentecost [Opens in a new window]
Allan Pentecost*
Affiliation:
School of Health and Life Sciences, King's College London, Strand, LondonWC2R 2LS The Freshwater Biological Association, Ferry Landing, Far Sawrey, Ambleside, Cumbria LA22 0LP, UK
*
Author for correspondence: Allan Pentecost. E-mail: [email protected]
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Abstract

Internal cephalodia of Lobaria pulmonaria were examined in two British locations, one in western Scotland (Isle of Skye) and the other in England (Cumbria, Lake District), sites which were predicted to have contrasting levels of fixed nitrogen deposition. Cephalodia were found to occupy a small proportion of the total biomass averaging (<1%) in both areas. Modelled nitrogen deposition in the sites in Cumbria was 3–6 times higher than in the Skye sites but the cephalodium relative biomass was not significantly different. It is suggested that local climatic and topographic effects might have reduced the estimated rate of nitrogen deposition at the former sites.

Keywords

biomassclimatelichennitrogen depositionNostoc
Type
Standard Papers
Information
The Lichenologist , Volume 53 , Issue 4 , July 2021 , pp. 335 - 339
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Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press on behalf of the British Lichen Society

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