Effect of muskox carcasses on nitrogen concentration in tundra vegetation

ABSTRACT. We observed a steep gradient of nitrogen concentration in plants growing around carcasses of four adult muskoxen that had been lying for five or more years on the tundra in the Canadian Arctic. The gradient reached an asymptote at 2 m distance from the carcasses. The carbon-to-nitrogen rat...

Full description

Bibliographic Details
Main Authors: Kjell Danell, Dominique Berteaux, Kari Anne Bråthen
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 2002
Subjects:
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.528.2907
http://pubs.aina.ucalgary.ca/arctic/arctic55-4-389.pdf
id ftciteseerx:oai:CiteSeerX.psu:10.1.1.528.2907
record_format openpolar
spelling ftciteseerx:oai:CiteSeerX.psu:10.1.1.528.2907 2023-05-15T14:19:33+02:00 Effect of muskox carcasses on nitrogen concentration in tundra vegetation Kjell Danell Dominique Berteaux Kari Anne Bråthen The Pennsylvania State University CiteSeerX Archives 2002 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.528.2907 http://pubs.aina.ucalgary.ca/arctic/arctic55-4-389.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.528.2907 http://pubs.aina.ucalgary.ca/arctic/arctic55-4-389.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://pubs.aina.ucalgary.ca/arctic/arctic55-4-389.pdf text 2002 ftciteseerx 2016-01-08T10:27:10Z ABSTRACT. We observed a steep gradient of nitrogen concentration in plants growing around carcasses of four adult muskoxen that had been lying for five or more years on the tundra in the Canadian Arctic. The gradient reached an asymptote at 2 m distance from the carcasses. The carbon-to-nitrogen ratio increased significantly from 1 to 3 m and then stabilized. These results suggest that the effects of carcasses last for several years on the tundra and create nitrogen-rich plant growth in their immediate surroundings. The lush growth around the carcasses in otherwise grazed areas indicated a low level of grazing on the fertilized plants. Key words: nitrogen, carcass, muskox, Ovibos moschatus, vascular plants, mosses, tundra, Canada RÉSUMÉ. Nous avons observé un fort gradient de concentration en azote dans les plantes poussant autour de 4 carcasses de bœufs musqués gisant depuis 5 ans ou plus dans la toundra de l’Arctique canadien. Le gradient atteignait une asymptote à 2 m des carcasses. Le rapport carbone/azote augmentait de façon significative de 1 à 3 m, puis se stabilisait. Nos résultats suggèrent que les carcasses créent dans la toundra des micro-communautés de plantes riches en azote dans leur environnement immédiat et que cet effet dure plusieurs années. L’abondance de végétation autour des carcasses, dans des endroits autrement broutés, révélait que les herbivores utilisaient peu les communautés végétales fertilisées. Text Arctic Arctic muskox ovibos moschatus toundra Tundra Unknown Arctic Canada
institution Open Polar
collection Unknown
op_collection_id ftciteseerx
language English
description ABSTRACT. We observed a steep gradient of nitrogen concentration in plants growing around carcasses of four adult muskoxen that had been lying for five or more years on the tundra in the Canadian Arctic. The gradient reached an asymptote at 2 m distance from the carcasses. The carbon-to-nitrogen ratio increased significantly from 1 to 3 m and then stabilized. These results suggest that the effects of carcasses last for several years on the tundra and create nitrogen-rich plant growth in their immediate surroundings. The lush growth around the carcasses in otherwise grazed areas indicated a low level of grazing on the fertilized plants. Key words: nitrogen, carcass, muskox, Ovibos moschatus, vascular plants, mosses, tundra, Canada RÉSUMÉ. Nous avons observé un fort gradient de concentration en azote dans les plantes poussant autour de 4 carcasses de bœufs musqués gisant depuis 5 ans ou plus dans la toundra de l’Arctique canadien. Le gradient atteignait une asymptote à 2 m des carcasses. Le rapport carbone/azote augmentait de façon significative de 1 à 3 m, puis se stabilisait. Nos résultats suggèrent que les carcasses créent dans la toundra des micro-communautés de plantes riches en azote dans leur environnement immédiat et que cet effet dure plusieurs années. L’abondance de végétation autour des carcasses, dans des endroits autrement broutés, révélait que les herbivores utilisaient peu les communautés végétales fertilisées.
author2 The Pennsylvania State University CiteSeerX Archives
format Text
author Kjell Danell
Dominique Berteaux
Kari Anne Bråthen
spellingShingle Kjell Danell
Dominique Berteaux
Kari Anne Bråthen
Effect of muskox carcasses on nitrogen concentration in tundra vegetation
author_facet Kjell Danell
Dominique Berteaux
Kari Anne Bråthen
author_sort Kjell Danell
title Effect of muskox carcasses on nitrogen concentration in tundra vegetation
title_short Effect of muskox carcasses on nitrogen concentration in tundra vegetation
title_full Effect of muskox carcasses on nitrogen concentration in tundra vegetation
title_fullStr Effect of muskox carcasses on nitrogen concentration in tundra vegetation
title_full_unstemmed Effect of muskox carcasses on nitrogen concentration in tundra vegetation
title_sort effect of muskox carcasses on nitrogen concentration in tundra vegetation
publishDate 2002
url http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.528.2907
http://pubs.aina.ucalgary.ca/arctic/arctic55-4-389.pdf
geographic Arctic
Canada
geographic_facet Arctic
Canada
genre Arctic
Arctic
muskox
ovibos moschatus
toundra
Tundra
genre_facet Arctic
Arctic
muskox
ovibos moschatus
toundra
Tundra
op_source http://pubs.aina.ucalgary.ca/arctic/arctic55-4-389.pdf
op_relation http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.528.2907
http://pubs.aina.ucalgary.ca/arctic/arctic55-4-389.pdf
op_rights Metadata may be used without restrictions as long as the oai identifier remains attached to it.
_version_ 1766291362399911936