Leaf carbon isotope discrimination and vegetative responses of Dryas octopetala to temperature and water manipulations in a High Arctic polar semi-desert, Svalbard
Integrative ecophysiological and vegetative responses of Dryas octopetala were measured in response to field perturbations of temperature, precipitation and their interactions in a polar semi-desert in Svalbard, Norway (79°N, 12°E). Leaf carbon isotope discrimination (Δ), total leaf nitrogen concent...
Published in: | Oecologia |
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Online Access: | http://hdl.handle.net/1893/26415 https://doi.org/10.1007/BF00317428 http://dspace.stir.ac.uk/bitstream/1893/26415/1/4220470.pdf |
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ftunivstirling:oai:dspace.stir.ac.uk:1893/26415 2023-05-15T14:26:57+02:00 Leaf carbon isotope discrimination and vegetative responses of Dryas octopetala to temperature and water manipulations in a High Arctic polar semi-desert, Svalbard Welker, Jeffery M Wookey, Philip Parsons, Andrew N Press, Malcolm C Callaghan, Terry V Lee, John A NERC Institute of Terrestrial Ecology Biological and Environmental Sciences University of Manchester orcid:0000-0001-5957-6424 1993-10 application/pdf http://hdl.handle.net/1893/26415 https://doi.org/10.1007/BF00317428 http://dspace.stir.ac.uk/bitstream/1893/26415/1/4220470.pdf en eng Springer Welker JM, Wookey P, Parsons AN, Press MC, Callaghan TV & Lee JA (1993) Leaf carbon isotope discrimination and vegetative responses of Dryas octopetala to temperature and water manipulations in a High Arctic polar semi-desert, Svalbard. Oecologia, 95 (4), pp. 463-469. https://doi.org/10.1007/BF00317428 http://hdl.handle.net/1893/26415 doi:10.1007/BF00317428 28313284 WOS:A1993MB23600002 2-s2.0-0000194165 523812 http://dspace.stir.ac.uk/bitstream/1893/26415/1/4220470.pdf The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. http://www.rioxx.net/licenses/under-embargo-all-rights-reserved 3000-01-01 [4220470.pdf] The publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work. Arctic physiological ecology carbon isotope discrimination climate change water-use efficiency polar semi-desert Journal Article VoR - Version of Record 1993 ftunivstirling https://doi.org/10.1007/BF00317428 2022-06-13T18:46:11Z Integrative ecophysiological and vegetative responses of Dryas octopetala were measured in response to field perturbations of temperature, precipitation and their interactions in a polar semi-desert in Svalbard, Norway (79°N, 12°E). Leaf carbon isotope discrimination (Δ), total leaf nitrogen concentration and leaf development were determined for photosynthetic leaves collected during the last week of August 1991, after one season of manipulations. Individual leaf weight and the total mass of leaf tissue were significantly lower when water was added, irrespective of temperature regime. Leaf carbon isotope discrimination and estimated long-term ci/cavalues (the ratio of CO2 concentration in leaf intercellular spaces to that in the atmosphere) were significantly higher under all three field manipulation treatments, and Δ was significantly reduced when Dryas was grown under drought conditions in a related greenhouse study. Nitrogen concentrations of plants from the field experiment were significantly lower under warmed conditions regardless of water regime. Our results indicate that changes in environmental conditions in high arctic settings will result in alterations of Dryas leaf gas exchange, as expressed by increases in carbon isotope discrimination, which may be accompanied by shifts in leaf nitrogen content and leaf biomass. © 1993 Springer-Verlag. Article in Journal/Newspaper Arctic Arctic Climate change Dryas octopetala Svalbard University of Stirling: Stirling Digital Research Repository Arctic Norway Svalbard Oecologia 95 4 463 469 |
institution |
Open Polar |
collection |
University of Stirling: Stirling Digital Research Repository |
op_collection_id |
ftunivstirling |
language |
English |
topic |
Arctic physiological ecology carbon isotope discrimination climate change water-use efficiency polar semi-desert |
spellingShingle |
Arctic physiological ecology carbon isotope discrimination climate change water-use efficiency polar semi-desert Welker, Jeffery M Wookey, Philip Parsons, Andrew N Press, Malcolm C Callaghan, Terry V Lee, John A Leaf carbon isotope discrimination and vegetative responses of Dryas octopetala to temperature and water manipulations in a High Arctic polar semi-desert, Svalbard |
topic_facet |
Arctic physiological ecology carbon isotope discrimination climate change water-use efficiency polar semi-desert |
description |
Integrative ecophysiological and vegetative responses of Dryas octopetala were measured in response to field perturbations of temperature, precipitation and their interactions in a polar semi-desert in Svalbard, Norway (79°N, 12°E). Leaf carbon isotope discrimination (Δ), total leaf nitrogen concentration and leaf development were determined for photosynthetic leaves collected during the last week of August 1991, after one season of manipulations. Individual leaf weight and the total mass of leaf tissue were significantly lower when water was added, irrespective of temperature regime. Leaf carbon isotope discrimination and estimated long-term ci/cavalues (the ratio of CO2 concentration in leaf intercellular spaces to that in the atmosphere) were significantly higher under all three field manipulation treatments, and Δ was significantly reduced when Dryas was grown under drought conditions in a related greenhouse study. Nitrogen concentrations of plants from the field experiment were significantly lower under warmed conditions regardless of water regime. Our results indicate that changes in environmental conditions in high arctic settings will result in alterations of Dryas leaf gas exchange, as expressed by increases in carbon isotope discrimination, which may be accompanied by shifts in leaf nitrogen content and leaf biomass. © 1993 Springer-Verlag. |
author2 |
NERC Institute of Terrestrial Ecology Biological and Environmental Sciences University of Manchester orcid:0000-0001-5957-6424 |
format |
Article in Journal/Newspaper |
author |
Welker, Jeffery M Wookey, Philip Parsons, Andrew N Press, Malcolm C Callaghan, Terry V Lee, John A |
author_facet |
Welker, Jeffery M Wookey, Philip Parsons, Andrew N Press, Malcolm C Callaghan, Terry V Lee, John A |
author_sort |
Welker, Jeffery M |
title |
Leaf carbon isotope discrimination and vegetative responses of Dryas octopetala to temperature and water manipulations in a High Arctic polar semi-desert, Svalbard |
title_short |
Leaf carbon isotope discrimination and vegetative responses of Dryas octopetala to temperature and water manipulations in a High Arctic polar semi-desert, Svalbard |
title_full |
Leaf carbon isotope discrimination and vegetative responses of Dryas octopetala to temperature and water manipulations in a High Arctic polar semi-desert, Svalbard |
title_fullStr |
Leaf carbon isotope discrimination and vegetative responses of Dryas octopetala to temperature and water manipulations in a High Arctic polar semi-desert, Svalbard |
title_full_unstemmed |
Leaf carbon isotope discrimination and vegetative responses of Dryas octopetala to temperature and water manipulations in a High Arctic polar semi-desert, Svalbard |
title_sort |
leaf carbon isotope discrimination and vegetative responses of dryas octopetala to temperature and water manipulations in a high arctic polar semi-desert, svalbard |
publisher |
Springer |
publishDate |
1993 |
url |
http://hdl.handle.net/1893/26415 https://doi.org/10.1007/BF00317428 http://dspace.stir.ac.uk/bitstream/1893/26415/1/4220470.pdf |
geographic |
Arctic Norway Svalbard |
geographic_facet |
Arctic Norway Svalbard |
genre |
Arctic Arctic Climate change Dryas octopetala Svalbard |
genre_facet |
Arctic Arctic Climate change Dryas octopetala Svalbard |
op_relation |
Welker JM, Wookey P, Parsons AN, Press MC, Callaghan TV & Lee JA (1993) Leaf carbon isotope discrimination and vegetative responses of Dryas octopetala to temperature and water manipulations in a High Arctic polar semi-desert, Svalbard. Oecologia, 95 (4), pp. 463-469. https://doi.org/10.1007/BF00317428 http://hdl.handle.net/1893/26415 doi:10.1007/BF00317428 28313284 WOS:A1993MB23600002 2-s2.0-0000194165 523812 http://dspace.stir.ac.uk/bitstream/1893/26415/1/4220470.pdf |
op_rights |
The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. http://www.rioxx.net/licenses/under-embargo-all-rights-reserved 3000-01-01 [4220470.pdf] The publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work. |
op_doi |
https://doi.org/10.1007/BF00317428 |
container_title |
Oecologia |
container_volume |
95 |
container_issue |
4 |
container_start_page |
463 |
op_container_end_page |
469 |
_version_ |
1766300472131452928 |