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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.12427
|2 doi
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|a pubmed24n0772.xml
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|a (NLM)24130066
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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|a Dillaway, Dylan N
|e verfasserin
|4 aut
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|a Trends in seedling growth and carbon-use efficiency vary among broadleaf tree species along a latitudinal transect in eastern North America
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|c 2014
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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 16.09.2014
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|a Date Revised 19.11.2015
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2013 John Wiley & Sons Ltd.
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|a Factors constraining the geographic ranges of broadleaf tree species in eastern North America were examined in common gardens along a ~1500 km latitudinal transect travers in grange boundaries of four target species: trembling aspen (Populus tremuloides) and paper birch (Betula papyrifera) to the north vs. eastern cottonwood (Populus deltoides) and sweet gum (Liquidambar styraciflua) to the south. In 2006 and 2007, carbon-use efficiency (CUE), the proportion of assimilated carbon retained in biomass, was estimated for seedlings of the four species as the quotient of relative growth rate (RGR) and photosynthesis per unit tree mass (Atree ). In aspen and birch, CUE and RGR declined significantly with increasing growth temperature, which spanned 9 °C across gardens and years. The 37% (relative) CUE decrease from coolest to warmest garden correlated with increases in leaf nighttime respiration (Rleaf ) and the ratio of Rleaf to leaf photosynthesis (R%A ). For cottonwood and sweet gum, however, similar increases in Rleaf and R%A accompanied modest CUE declines, implying that processes other than Rleaf were responsible for species differences in CUE's temperature response. Our findings illustrate marked taxonomic variation, at least among young trees, in the thermal sensitivity of CUE, and point to potentially negative consequences of climate warming for the carbon balance, competitive ability, and persistence of two foundation species in northern temperate and boreal forests
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a boreal forest
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|a carbon-use efficiency
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|a climate
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|a deciduous broadleaf trees
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|a growth
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|a photosynthesis
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|a respiration
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|a temperate forest
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|a temperature
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|a Carbon
|2 NLM
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|a 7440-44-0
|2 NLM
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| 700 |
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|a Kruger, Eric L
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Global change biology
|d 1999
|g 20(2014), 3 vom: 02. März, Seite 908-22
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
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|g volume:20
|g year:2014
|g number:3
|g day:02
|g month:03
|g pages:908-22
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|u http://dx.doi.org/10.1111/gcb.12427
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