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Title

Changes in leaf phenology of three European oak species in response to experimental climate change

Publication Year

2010

Author(s)
  • Morin, Xavier
  • Roy, Jacques
  • Sonie, Laurette
  • Chuine, Isabelle
Source
NEW PHYTOLOGIST Volume: 186 Issue: 4 Pages: 900-910 Published: 2010
ISSN
1469-8137
Abstract

P>Because the phenology of trees is strongly driven by environmental factors such as temperature, climate change has already altered the vegetative and repro-ductive phenology of many species, especially in the temperate zone. Here, we aimed to determine whether projected levels of warming for the upcoming decades will lead to linear changes in the phenology of trees or to more complex responses. We report the results of a 3-yr common garden experiment designed to study the phenological response to artificial climate change, obtained through experimental warming and reduced precipitation, of several populations of three European oaks, two deciduous species (Quercus robur, Quercus pubescens) and one evergreen species (Quercus ilex), in a Mediterranean site. Experimental warming advanced the seedlings' vegetative phenology, causing a longer growing season and higher mortality. However, the rate of advancement of leaf unfolding date was decreased with increasing temperature. Conversely, soil water content did not affect the phenology of the seedlings or their survival. Our results show that the phenological response of trees to climate change may be nonlinear, and suggest that predictions of phenological changes in the future should not be built on extrapolations of current observed trends.

Author Keyword(s)
  • climate change
  • FATI (Free Air Temperature Increase)
  • leaf senescence
  • leaf unfolding
  • phenology
  • temperate oaks
  • trees
KeyWord(s) Plus
  • ELEVATED CO2
  • FOREST TREES
  • BUD BURST
  • REPRODUCTIVE PHENOLOGY
  • SPRING PHENOLOGY
  • AIR-TEMPERATURE
  • SCOTS PINE
  • LONG-TERM
  • GROWTH
  • PLANT
ESI Discipline(s)
  • Plant & Animal Science
Web of Science Category(ies)
  • Plant Sciences
Adress(es)

[Morin, Xavier; Roy, Jacques; Sonie, Laurette; Chuine, Isabelle] CNRS, Ctr Ecol Fonct & Evolut, Equipe BIOFLUX, F-34293 Montpellier 5, France

Reprint Adress

Morin, X (reprint author), Swiss Fed Inst Technol, Dept Environm Sci, Inst Terr Ecosyst, Univ Str 22, CH-8092 Zurich, Switzerland.

Country(ies)
  • France
  • Switzerland
CNRS - Adress(es)
  • Centre d'Ecologie Fonctionnelle et Evolutive (CEFE), UMR5175
Accession Number
WOS:000277526900012
uid:/1M4PDR6R
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