Mosses in High-Arctic lakes:in situ measurements of annual primary production and decomposition
Aquatic mosses are important primary producers in High-Arctic lakes, but little information is available on their contribution to the overall production in these lakes. In order to predict effects of climate change on whole-lake ecosystem characteristics, more knowledge is needed on the role of moss...
Published in: | Polar Biology |
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Language: | English |
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2016
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ftuniaarhuspubl:oai:pure.atira.dk:publications/89dbecc6-5ee2-4c6a-b8fc-050f75a6b59c 2023-05-15T14:24:31+02:00 Mosses in High-Arctic lakes:in situ measurements of annual primary production and decomposition Riis, T. Christoffersen, K. S. Baattrup-Pedersen, A. 2016-03-01 https://pure.au.dk/portal/da/publications/mosses-in-higharctic-lakes(89dbecc6-5ee2-4c6a-b8fc-050f75a6b59c).html https://doi.org/10.1007/s00300-015-1806-9 http://www.scopus.com/inward/record.url?scp=84959536175&partnerID=8YFLogxK eng eng info:eu-repo/semantics/restrictedAccess Riis , T , Christoffersen , K S & Baattrup-Pedersen , A 2016 , ' Mosses in High-Arctic lakes : in situ measurements of annual primary production and decomposition ' , Polar Biology , vol. 39 , no. 3 , pp. 543-552 . https://doi.org/10.1007/s00300-015-1806-9 Annual growth Aquatic moss Global warming Growth rate High Arctic In situ growth experiment Lake primary production article 2016 ftuniaarhuspubl https://doi.org/10.1007/s00300-015-1806-9 2020-07-18T22:16:49Z Aquatic mosses are important primary producers in High-Arctic lakes, but little information is available on their contribution to the overall production in these lakes. In order to predict effects of climate change on whole-lake ecosystem characteristics, more knowledge is needed on the role of moss in primary production, the extent of nutrient limitation of moss primary production and whether moss serves as food resource for secondary producers. In this study, we conducted an in situ growth experiment of an aquatic moss in a High-Arctic lake in NE Greenland and used these data to determine annual net production of this moss in the whole lake. We also measured tissue-N and tissue-P in order to assess nutrient limitation of moss production, measured in situ decomposition rates by litter bag experiments over 1 year and assessed the role of moss as food source by analysing stable isotope 15 N and 13 C of relevant organism groups in the lake. Net primary production of moss was 1.3 gC m −2 year −1 and constituted 23 % of the total benthic primary production and 18 % of the total lake primary production. Stoichiometric assessments suggested N and P limitation of moss growth. On average, 15 % of the standing biomass was decomposed per year. Our results also indicate that moss is not directly used as food resource by herbivores, but the most abundant herbivore, Lepidurusarcticus, is feeding on the epiphytic biofilm on the moss. Moss biomass is instead incorporated into the microbial decomposer pathway. All together, the study shows that moss plays an important ecological role as primary producer in High-Arctic lakes and functions as substrate for periphytic biofilm that serves as food resource for important herbivore invertebrates. Article in Journal/Newspaper Arctic Arctic Climate change Global warming Greenland Polar Biology Aarhus University: Research Arctic Arctic Lake ENVELOPE(-130.826,-130.826,57.231,57.231) Greenland Polar Biology 39 3 543 552 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Annual growth Aquatic moss Global warming Growth rate High Arctic In situ growth experiment Lake primary production |
spellingShingle |
Annual growth Aquatic moss Global warming Growth rate High Arctic In situ growth experiment Lake primary production Riis, T. Christoffersen, K. S. Baattrup-Pedersen, A. Mosses in High-Arctic lakes:in situ measurements of annual primary production and decomposition |
topic_facet |
Annual growth Aquatic moss Global warming Growth rate High Arctic In situ growth experiment Lake primary production |
description |
Aquatic mosses are important primary producers in High-Arctic lakes, but little information is available on their contribution to the overall production in these lakes. In order to predict effects of climate change on whole-lake ecosystem characteristics, more knowledge is needed on the role of moss in primary production, the extent of nutrient limitation of moss primary production and whether moss serves as food resource for secondary producers. In this study, we conducted an in situ growth experiment of an aquatic moss in a High-Arctic lake in NE Greenland and used these data to determine annual net production of this moss in the whole lake. We also measured tissue-N and tissue-P in order to assess nutrient limitation of moss production, measured in situ decomposition rates by litter bag experiments over 1 year and assessed the role of moss as food source by analysing stable isotope 15 N and 13 C of relevant organism groups in the lake. Net primary production of moss was 1.3 gC m −2 year −1 and constituted 23 % of the total benthic primary production and 18 % of the total lake primary production. Stoichiometric assessments suggested N and P limitation of moss growth. On average, 15 % of the standing biomass was decomposed per year. Our results also indicate that moss is not directly used as food resource by herbivores, but the most abundant herbivore, Lepidurusarcticus, is feeding on the epiphytic biofilm on the moss. Moss biomass is instead incorporated into the microbial decomposer pathway. All together, the study shows that moss plays an important ecological role as primary producer in High-Arctic lakes and functions as substrate for periphytic biofilm that serves as food resource for important herbivore invertebrates. |
format |
Article in Journal/Newspaper |
author |
Riis, T. Christoffersen, K. S. Baattrup-Pedersen, A. |
author_facet |
Riis, T. Christoffersen, K. S. Baattrup-Pedersen, A. |
author_sort |
Riis, T. |
title |
Mosses in High-Arctic lakes:in situ measurements of annual primary production and decomposition |
title_short |
Mosses in High-Arctic lakes:in situ measurements of annual primary production and decomposition |
title_full |
Mosses in High-Arctic lakes:in situ measurements of annual primary production and decomposition |
title_fullStr |
Mosses in High-Arctic lakes:in situ measurements of annual primary production and decomposition |
title_full_unstemmed |
Mosses in High-Arctic lakes:in situ measurements of annual primary production and decomposition |
title_sort |
mosses in high-arctic lakes:in situ measurements of annual primary production and decomposition |
publishDate |
2016 |
url |
https://pure.au.dk/portal/da/publications/mosses-in-higharctic-lakes(89dbecc6-5ee2-4c6a-b8fc-050f75a6b59c).html https://doi.org/10.1007/s00300-015-1806-9 http://www.scopus.com/inward/record.url?scp=84959536175&partnerID=8YFLogxK |
long_lat |
ENVELOPE(-130.826,-130.826,57.231,57.231) |
geographic |
Arctic Arctic Lake Greenland |
geographic_facet |
Arctic Arctic Lake Greenland |
genre |
Arctic Arctic Climate change Global warming Greenland Polar Biology |
genre_facet |
Arctic Arctic Climate change Global warming Greenland Polar Biology |
op_source |
Riis , T , Christoffersen , K S & Baattrup-Pedersen , A 2016 , ' Mosses in High-Arctic lakes : in situ measurements of annual primary production and decomposition ' , Polar Biology , vol. 39 , no. 3 , pp. 543-552 . https://doi.org/10.1007/s00300-015-1806-9 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00300-015-1806-9 |
container_title |
Polar Biology |
container_volume |
39 |
container_issue |
3 |
container_start_page |
543 |
op_container_end_page |
552 |
_version_ |
1766296933732712448 |