Auteurs, date et publication :
Auteurs Fabrice Hibert , Pierre Taberlet , Jeroˆme Chave , Caroline Scotti-Saintagne , Daniel Sabatier , Cecile Richard-Hansen
Publication : PloS one
Date : 2025
Volume : 8
Issue : 4
Pages : e60799
Catégorie(s)
#CNRS #FORET NouraguesAuteurs, date et publication :
Auteurs Vincent Vedel , Christina Rheims , Jérôme Murienne , Antonio Domingos Brescovit
Publication : SpringerPlus
Date : 2025
Volume : 2
Issue : 1
Pages : 1-19
Catégorie(s)
#CNRS #FORET NouraguesAuteurs, date et publication :
Auteurs Andrius Pašukonis , Max Ringler , Hanja B Brandl , Rosanna Mangione , Eva Ringler , Walter Hödl
Publication : Ethology
Date : 2025
Catégorie(s)
#CNRS #FORET NouraguesAuteurs, date et publication :
Auteurs Bibiana Rojas , John A Endler
Publication : Evolutionary ecology
Date : 2025
Volume : 27
Issue : 4
Pages : 739-753
Catégorie(s)
#CNRS #FORET NouraguesRésumé
Like many midlatitude ecosystems, Mediterranean forests will suffer longer and more intense droughts with the ongoing climate change. The responses to drought in long-lived trees differ depending on the time scale considered, and short-term responses are currently better understood than longer term acclimation. We assessed the temporal changes in trees facing a chronic reduction in water availability by comparing leaf-scale physiological traits, branch-scale hydraulic traits, and stand-scale biomass partitioning in the evergreen Quercus ilex across a regional precipitation gradient (long-term changes) and in a partial throughfall exclusion experiment (TEE, medium term changes). At the leaf scale, gas exchange, mass per unit area and nitrogen concentration showed homeostatic responses to drought as they did not change among the sites of the precipitation gradient or in the experimental treatments of the TEE. A similar homeostatic response was observed for the xylem vulnerability to cavitation at the branch scale. In contrast, the ratio of leaf area over sapwood area (LA/SA) in young branches exhibited a transient response to drought because it decreased in response to the TEE the first 4 years of treatment, but did not change among the sites of the gradient. At the stand scale, leaf area index (LAI) decreased, and the ratios of stem SA to LAI and of fine root area to LAI both increased in trees subjected to throughfall exclusion and from the wettest to the driest site of the gradient. Taken together, these results suggest that acclimation to chronic drought in long-lived Q. ilex is mediated by changes in hydraulic allometry that shift progressively from low (branch) to high (stand) organizational levels, and act to maintain the leaf water potential within the range of xylem hydraulic function and leaf photosynthetic assimilation.
Auteurs, date et publication :
Auteurs Nicolas K. Martin‐StPaul , Jean-Marc Limousin , Hélène Vogt‐Schilb , Jesus Rodríguez‐Calcerrada , Serge Rambal , Damien Longepierre , Laurent Misson
Publication : Global Change Biology
Date : 2025
Volume : 19
Issue : 8
Pages : 2413-2426
Catégorie(s)
#CNRS #FORET PuechabonAuteurs, date et publication :
Auteurs Marie-Anne Félix , Richard Jovelin , Céline Ferrari , Shery Han , Young Ran Cho , Erik C Andersen , Asher D Cutter , Christian Braendle
Publication : BMC Evolutionary Biology
Date : 2025
Volume : 13
Issue : 1
Pages : 10
Catégorie(s)
#CNRS #FORET NouraguesAuteurs, date et publication :
Auteurs François Feer
Publication : Revue de Biologie Tropicale
Date : 2025
Volume : 61
Issue : 2
Pages : 753-768
Catégorie(s)
#CNRS #FORET NouraguesAuteurs, date et publication :
Auteurs Blanka Vlasáková
Publication : Plant Ecology
Date : 2025
Volume : 214
Issue : 2
Pages : 279-290
Catégorie(s)
#CNRS #FORET NouraguesAuteurs, date et publication :
Auteurs Philip Scheibel , François Catzeflis , Agustin Jimenez
Publication : Folia Parasitologica
Date : 2025
Catégorie(s)
#⛔ No DOI found #CNRS #FORET NouraguesAuteurs, date et publication :
Auteurs François Feer
Publication : Revista de Biología Tropical
Date : 2025
Volume : 61
Issue : 2
Pages : 753-768