Phenology, growth, and fecundity of eight subarctic tundra species in response to snowmelt manipulations
The snow cover extent is an important factor for the structure and composition of arctic and alpine tundra communities. Over the last few decades, snowmelt in many arctic and alpine regions has advanced, causing the growing season to start earlier and last longer. In a field experiment in subarctic...
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ftunivzuerich:oai:www.zora.uzh.ch:156457 2024-09-15T18:37:57+00:00 Phenology, growth, and fecundity of eight subarctic tundra species in response to snowmelt manipulations Wipf, Sonja 2010-03-01 application/pdf https://www.zora.uzh.ch/id/eprint/156457/ https://www.zora.uzh.ch/id/eprint/156457/1/ZORA_NL_156457.pdf https://doi.org/10.5167/uzh-156457 https://doi.org/10.1007/s11258-009-9653-9 eng eng Springer https://www.zora.uzh.ch/id/eprint/156457/1/ZORA_NL_156457.pdf doi:10.5167/uzh-156457 doi:10.1007/s11258-009-9653-9 urn:issn:1385-0237 info:eu-repo/semantics/openAccess Wipf, Sonja (2010). Phenology, growth, and fecundity of eight subarctic tundra species in response to snowmelt manipulations. Plant Ecology, 207(1):53-66. 142-005 Journal Article PeerReviewed info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2010 ftunivzuerich https://doi.org/10.5167/uzh-15645710.1007/s11258-009-9653-9 2024-08-28T00:37:25Z The snow cover extent is an important factor for the structure and composition of arctic and alpine tundra communities. Over the last few decades, snowmelt in many arctic and alpine regions has advanced, causing the growing season to start earlier and last longer. In a field experiment in subarctic tundra in Interior Alaska, I manipulated the timing of snowmelt and measured the response in mortality, phenology, growth, and reproduction of the eight dominant plant species. I then tested whether the phenological development of these species was controlled by snowmelt date or by temperature (in particular growing degree days, GDD). In order to expand our understanding of plant sensitivity to snowmelt timing, I explored whether the response patterns can be generalized with regard to the temporal niche of each species. Differences in the phenology between treatments were only found for the first stages of the phenological development (=phenophases). The earlier the temporal niche (i.e., the sooner after snowmelt a species develops) the more its phenology was sensitive to snowmelt. Later phenophases were mostly controlled by GDD, especially in late-developing species. In no species did an earlier snowmelt and a longer growing season directly enhance plant fitness or fecundity, in spite of the changes in the timing of plant development. In conclusion, the temporal niche of a species' phenological development could be a predictor of its response to snowmelt timing. However, only the first phenophases were susceptible to changes in snowmelt, and no short-term effects on plant fitness were found Article in Journal/Newspaper Subarctic Tundra Alaska University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
institution |
Open Polar |
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University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
op_collection_id |
ftunivzuerich |
language |
English |
topic |
142-005 |
spellingShingle |
142-005 Wipf, Sonja Phenology, growth, and fecundity of eight subarctic tundra species in response to snowmelt manipulations |
topic_facet |
142-005 |
description |
The snow cover extent is an important factor for the structure and composition of arctic and alpine tundra communities. Over the last few decades, snowmelt in many arctic and alpine regions has advanced, causing the growing season to start earlier and last longer. In a field experiment in subarctic tundra in Interior Alaska, I manipulated the timing of snowmelt and measured the response in mortality, phenology, growth, and reproduction of the eight dominant plant species. I then tested whether the phenological development of these species was controlled by snowmelt date or by temperature (in particular growing degree days, GDD). In order to expand our understanding of plant sensitivity to snowmelt timing, I explored whether the response patterns can be generalized with regard to the temporal niche of each species. Differences in the phenology between treatments were only found for the first stages of the phenological development (=phenophases). The earlier the temporal niche (i.e., the sooner after snowmelt a species develops) the more its phenology was sensitive to snowmelt. Later phenophases were mostly controlled by GDD, especially in late-developing species. In no species did an earlier snowmelt and a longer growing season directly enhance plant fitness or fecundity, in spite of the changes in the timing of plant development. In conclusion, the temporal niche of a species' phenological development could be a predictor of its response to snowmelt timing. However, only the first phenophases were susceptible to changes in snowmelt, and no short-term effects on plant fitness were found |
format |
Article in Journal/Newspaper |
author |
Wipf, Sonja |
author_facet |
Wipf, Sonja |
author_sort |
Wipf, Sonja |
title |
Phenology, growth, and fecundity of eight subarctic tundra species in response to snowmelt manipulations |
title_short |
Phenology, growth, and fecundity of eight subarctic tundra species in response to snowmelt manipulations |
title_full |
Phenology, growth, and fecundity of eight subarctic tundra species in response to snowmelt manipulations |
title_fullStr |
Phenology, growth, and fecundity of eight subarctic tundra species in response to snowmelt manipulations |
title_full_unstemmed |
Phenology, growth, and fecundity of eight subarctic tundra species in response to snowmelt manipulations |
title_sort |
phenology, growth, and fecundity of eight subarctic tundra species in response to snowmelt manipulations |
publisher |
Springer |
publishDate |
2010 |
url |
https://www.zora.uzh.ch/id/eprint/156457/ https://www.zora.uzh.ch/id/eprint/156457/1/ZORA_NL_156457.pdf https://doi.org/10.5167/uzh-156457 https://doi.org/10.1007/s11258-009-9653-9 |
genre |
Subarctic Tundra Alaska |
genre_facet |
Subarctic Tundra Alaska |
op_source |
Wipf, Sonja (2010). Phenology, growth, and fecundity of eight subarctic tundra species in response to snowmelt manipulations. Plant Ecology, 207(1):53-66. |
op_relation |
https://www.zora.uzh.ch/id/eprint/156457/1/ZORA_NL_156457.pdf doi:10.5167/uzh-156457 doi:10.1007/s11258-009-9653-9 urn:issn:1385-0237 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5167/uzh-15645710.1007/s11258-009-9653-9 |
_version_ |
1810482292637827072 |