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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.12919
|2 doi
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|a pubmed24n0822.xml
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|a (NLM)25736981
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|a DE-627
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|a eng
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|a Marchin, Renée M
|e verfasserin
|4 aut
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|a Temperature alone does not explain phenological variation of diverse temperate plants under experimental warming
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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 05.05.2016
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|a Date Revised 25.11.2016
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2015 John Wiley & Sons Ltd.
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|a Anthropogenic climate change has altered temperate forest phenology, but how these trends will play out in the future is controversial. We measured the effect of experimental warming of 0.6-5.0 °C on the phenology of a diverse suite of 11 plant species in the deciduous forest understory (Duke Forest, North Carolina, USA) in a relatively warm year (2011) and a colder year (2013). Our primary goal was to dissect how temperature affects timing of spring budburst, flowering, and autumn leaf coloring for functional groups with different growth habits, phenological niches, and xylem anatomy. Warming advanced budburst of six deciduous woody species by 5-15 days and delayed leaf coloring by 18-21 days, resulting in an extension of the growing season by as much as 20-29 days. Spring temperature accumulation was strongly correlated with budburst date, but temperature alone cannot explain the diverse budburst responses observed among plant functional types. Ring-porous trees showed a consistent temperature response pattern across years, suggesting these species are sensitive to photoperiod. Conversely, diffuse-porous species responded differently between years, suggesting winter chilling may be more important in regulating budburst. Budburst of the ring-porous Quercus alba responded nonlinearly to warming, suggesting evolutionary constraints may limit changes in phenology, and therefore productivity, in the future. Warming caused a divergence in flowering times among species in the forest community, resulting in a longer flowering season by 10-16 days. Temperature was a good predictor of flowering for only four of the seven species studied here. Observations of interannual temperature variability overpredicted flowering responses in spring-blooming species, relative to our warming experiment, and did not consistently predict even the direction of flowering shifts. Experiments that push temperatures beyond historic variation are indispensable for improving predictions of future changes in phenology
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|a Journal Article
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a budburst
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|a climate change
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|a flowering
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|a growing season length
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|a leaf senescence
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|a phenology
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|a southeastern United States
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|a temperature sensitivity
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|a warming experiment
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|a Salk, Carl F
|e verfasserin
|4 aut
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|a Hoffmann, William A
|e verfasserin
|4 aut
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| 700 |
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|a Dunn, Robert R
|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), 8 vom: 15. Aug., Seite 3138-51
|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:8
|g day:15
|g month:08
|g pages:3138-51
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|u http://dx.doi.org/10.1111/gcb.12919
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