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 I year on a low rounded knoll on Clark Peninsula, Windmill Islands, Wilkes Land, Antarctica. Thallus N was significantly higher in U...
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2000
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ftunivtasecite:oai:ecite.utas.edu.au:20493 2023-05-15T13:59:07+02:00 Seasonal Trends in Nitrogen Status of Antarctic Lichens Hovenden, MJ 2000 https://doi.org/10.1006/anbo.2000.1248 http://ecite.utas.edu.au/20493 en eng Academic Press Ltd http://dx.doi.org/10.1006/anbo.2000.1248 Hovenden, MJ, Seasonal Trends in Nitrogen Status of Antarctic Lichens, Annals of Botany, 86, (4) pp. 717-721. ISSN 0305-7364 (2000) [Refereed Article] http://ecite.utas.edu.au/20493 Biological Sciences Plant Biology Plant Physiology Refereed Article PeerReviewed 2000 ftunivtasecite https://doi.org/10.1006/anbo.2000.1248 2019-12-13T21:02:55Z The thallus nitrogen (N) concentration of two dominant macrolichens of continental Antarctica (Usnea sphacelata and Umbilicaria decussata) was estimated each month for I 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. (C) 2000 Annals of Botany Company. Article in Journal/Newspaper Antarc* Antarctic Antarctica Wilkes Land Windmill Islands eCite UTAS (University of Tasmania) 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 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Biological Sciences Plant Biology Plant Physiology |
spellingShingle |
Biological Sciences Plant Biology Plant Physiology Hovenden, MJ Seasonal Trends in Nitrogen Status of Antarctic Lichens |
topic_facet |
Biological Sciences Plant Biology Plant Physiology |
description |
The thallus nitrogen (N) concentration of two dominant macrolichens of continental Antarctica (Usnea sphacelata and Umbilicaria decussata) was estimated each month for I 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. (C) 2000 Annals of Botany Company. |
format |
Article in Journal/Newspaper |
author |
Hovenden, MJ |
author_facet |
Hovenden, MJ |
author_sort |
Hovenden, MJ |
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 |
Academic Press Ltd |
publishDate |
2000 |
url |
https://doi.org/10.1006/anbo.2000.1248 http://ecite.utas.edu.au/20493 |
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://dx.doi.org/10.1006/anbo.2000.1248 Hovenden, MJ, Seasonal Trends in Nitrogen Status of Antarctic Lichens, Annals of Botany, 86, (4) pp. 717-721. ISSN 0305-7364 (2000) [Refereed Article] http://ecite.utas.edu.au/20493 |
op_doi |
https://doi.org/10.1006/anbo.2000.1248 |
container_title |
Annals of Botany |
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86 |
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4 |
container_start_page |
717 |
op_container_end_page |
721 |
_version_ |
1766267509409841152 |