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231224s2011 xx |||||o 00| ||eng c |
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|a 10.1016/j.plantsci.2010.09.005
|2 doi
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|a eng
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|a Cooper, Elisabeth J
|e verfasserin
|4 aut
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|a Late snowmelt delays plant development and results in lower reproductive success in the High Arctic
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|c 2011
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 05.07.2011
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2010 Elsevier Ireland Ltd. All rights reserved.
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|a In tundra areas where the growing season is short, any delay in the start of summer may have a considerable effect on plant development, growth and reproductive success. Climate models suggest long-term changes in winter precipitation in the Arctic, which may lead to deeper snow cover and a resultant delay in date of snow melt. In this paper, we investigated the role of snow depth and melt out date on the phenological development and reproductive success of vascular plants in Adventdalen, Svalbard (78° 10'N, 16° 06'E). Effects of natural variations in snow accumulation were demonstrated using two vegetation types (snow depth: meadow 21 cm, heath 32 cm), and fences were used to experimentally increase snow depth by over 1m. Phenological delay was greatest directly after snowmelt in the earlier phenological phases, and had the largest effect on the early development of those species which normally green-up early (i.e. Dryas, Papaver, Salix, Saxifraga). Compressed growing seasons and length of the reproductive period led to a reduced reproductive success in some of the study species. There were fewer flowers, fewer plots with dispersing seeds, and lower germination rates. This can have consequences for plant establishment and community composition in the long-term
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Dullinger, Stefan
|e verfasserin
|4 aut
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|a Semenchuk, Philipp
|e verfasserin
|4 aut
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|i Enthalten in
|t Plant science : an international journal of experimental plant biology
|d 1985
|g 180(2011), 1 vom: 03. Jan., Seite 157-67
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|x 1873-2259
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|g year:2011
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|g month:01
|g pages:157-67
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|u http://dx.doi.org/10.1016/j.plantsci.2010.09.005
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