Seasonal Trends in Nitrogen Status of Antarctic Lichens
The thallus nitrogen (N) concentration of two dominant macrolichens of continental Antarctica ( Usnea sphacelata and Umbilicaria decussata ) was estimated each month for 1 year on a low rounded knoll on Clark Peninsula, Windmill Islands, Wilkes Land, Antarctica. Thallus N was significantly higher in...
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2000
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fthighwire:oai:open-archive.highwire.org:annbot:86/4/717 2023-05-15T13:51:42+02:00 Seasonal Trends in Nitrogen Status of Antarctic Lichens Hovenden, Mark J. 2000-10-01 00:00:00.0 text/html http://aob.oxfordjournals.org/cgi/content/short/86/4/717 https://doi.org/10.1006/anbo.2000.1248 en eng Oxford University Press http://aob.oxfordjournals.org/cgi/content/short/86/4/717 http://dx.doi.org/10.1006/anbo.2000.1248 Copyright (C) 2000, Oxford University Press ORIGINAL ARTICLES TEXT 2000 fthighwire https://doi.org/10.1006/anbo.2000.1248 2013-05-27T10:40:17Z The thallus nitrogen (N) concentration of two dominant macrolichens of continental Antarctica ( Usnea sphacelata and Umbilicaria decussata ) was estimated each month for 1 year on a low rounded knoll on Clark Peninsula, Windmill Islands, Wilkes Land, Antarctica. Thallus N was significantly higher in Umbilicaria decussata than in Usnea sphacelata and varied according to site. During the winter months, when the lichens were metabolically inactive, thalli gradually accumulated N. At the onset of warmer conditions, thallus N content fell dramatically in both species, with the timing of the decline being related to microclimatic conditions. The strongly seasonal pattern of metabolic activity in these species is reflected in their nitrogen relations. Copyright 2000 Annals of Botany Company Text Antarc* Antarctic Antarctica Wilkes Land Windmill Islands HighWire Press (Stanford University) Antarctic Wilkes Land ENVELOPE(120.000,120.000,-69.000,-69.000) Windmill Islands ENVELOPE(110.417,110.417,-66.350,-66.350) Clark Peninsula ENVELOPE(110.563,110.563,-66.254,-66.254) Annals of Botany 86 4 717 721 |
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Open Polar |
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HighWire Press (Stanford University) |
op_collection_id |
fthighwire |
language |
English |
topic |
ORIGINAL ARTICLES |
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ORIGINAL ARTICLES Hovenden, Mark J. Seasonal Trends in Nitrogen Status of Antarctic Lichens |
topic_facet |
ORIGINAL ARTICLES |
description |
The thallus nitrogen (N) concentration of two dominant macrolichens of continental Antarctica ( Usnea sphacelata and Umbilicaria decussata ) was estimated each month for 1 year on a low rounded knoll on Clark Peninsula, Windmill Islands, Wilkes Land, Antarctica. Thallus N was significantly higher in Umbilicaria decussata than in Usnea sphacelata and varied according to site. During the winter months, when the lichens were metabolically inactive, thalli gradually accumulated N. At the onset of warmer conditions, thallus N content fell dramatically in both species, with the timing of the decline being related to microclimatic conditions. The strongly seasonal pattern of metabolic activity in these species is reflected in their nitrogen relations. Copyright 2000 Annals of Botany Company |
format |
Text |
author |
Hovenden, Mark J. |
author_facet |
Hovenden, Mark J. |
author_sort |
Hovenden, Mark J. |
title |
Seasonal Trends in Nitrogen Status of Antarctic Lichens |
title_short |
Seasonal Trends in Nitrogen Status of Antarctic Lichens |
title_full |
Seasonal Trends in Nitrogen Status of Antarctic Lichens |
title_fullStr |
Seasonal Trends in Nitrogen Status of Antarctic Lichens |
title_full_unstemmed |
Seasonal Trends in Nitrogen Status of Antarctic Lichens |
title_sort |
seasonal trends in nitrogen status of antarctic lichens |
publisher |
Oxford University Press |
publishDate |
2000 |
url |
http://aob.oxfordjournals.org/cgi/content/short/86/4/717 https://doi.org/10.1006/anbo.2000.1248 |
long_lat |
ENVELOPE(120.000,120.000,-69.000,-69.000) ENVELOPE(110.417,110.417,-66.350,-66.350) ENVELOPE(110.563,110.563,-66.254,-66.254) |
geographic |
Antarctic Wilkes Land Windmill Islands Clark Peninsula |
geographic_facet |
Antarctic Wilkes Land Windmill Islands Clark Peninsula |
genre |
Antarc* Antarctic Antarctica Wilkes Land Windmill Islands |
genre_facet |
Antarc* Antarctic Antarctica Wilkes Land Windmill Islands |
op_relation |
http://aob.oxfordjournals.org/cgi/content/short/86/4/717 http://dx.doi.org/10.1006/anbo.2000.1248 |
op_rights |
Copyright (C) 2000, Oxford University Press |
op_doi |
https://doi.org/10.1006/anbo.2000.1248 |
container_title |
Annals of Botany |
container_volume |
86 |
container_issue |
4 |
container_start_page |
717 |
op_container_end_page |
721 |
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1766255727062548480 |