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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.12848
|2 doi
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|a pubmed24n0816.xml
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|a eng
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1 |
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|a Bramley-Alves, Jessica
|e verfasserin
|4 aut
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|a Moss δ(13) C
|b an accurate proxy for past water environments in polar regions
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|c 2015
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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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|2 rdacarrier
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|a Date Completed 23.03.2016
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|a Date Revised 27.04.2015
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2014 John Wiley & Sons Ltd.
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|a Increased aridity is of global concern. Polar regions provide an opportunity to monitor changes in bioavailable water free of local anthropogenic influences. However, sophisticated proxy measures are needed. We explored the possibility of using stable carbon isotopes in segments of moss as a fine-scale proxy for past bioavailable water. Variation in δ(13) C with water availability was measured in three species across three peninsulas in the Windmill Islands, East Antarctica and verified using controlled chamber experiments. The δ(13) C from Antarctic mosses accurately recorded long-term variations in water availability in the field, regardless of location, but significant disparities in δ(13) C between species indicated some make more sensitive proxies. δ(13) CSUGAR derived from living tissues can change significantly within the span of an Antarctic season (5 weeks) in chambers, but under field conditions, slow growth means that this technique likely represents multiple seasons. δ(13) CCELLULOSE provides a precise and direct proxy for bioavailable water, allowing reconstructions for coastal Antarctica and potentially other cold regions over past centuries
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Antarctica
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|a bioavailable water
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|a cell wall thickness
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|a cellulose
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|a climate change
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|a proxies
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|a δ13C
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|a Carbohydrates
|2 NLM
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|a Carbon Isotopes
|2 NLM
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|a Water
|2 NLM
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|a 059QF0KO0R
|2 NLM
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|a Cellulose
|2 NLM
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|a 9004-34-6
|2 NLM
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|a Wanek, Wolfgang
|e verfasserin
|4 aut
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|a French, Kristine
|e verfasserin
|4 aut
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| 700 |
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|a Robinson, Sharon A
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Global change biology
|d 1999
|g 21(2015), 6 vom: 16. Juni, Seite 2454-64
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
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|g volume:21
|g year:2015
|g number:6
|g day:16
|g month:06
|g pages:2454-64
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|u http://dx.doi.org/10.1111/gcb.12848
|3 Volltext
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