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Interspecific variability in physiological thresholds during dehydration reveals contrasting drought-response strategies and vulnerability to hydraulic failure in rainforest tree saplings

Archive ouverte | Ziegler, Camille | CCSD

International audience. Background - Several traits, mostly related to stomatal and xylem functioning, represent key mechanisms influencing specie’s survival during drought. However, little is known on their coordin...

Large hydraulic safety margins protect Neotropical canopy rainforest tree species against hydraulic failure during drought

Archive ouverte | Ziegler, Camille | CCSD

International audience. Abundant Neotropical canopy-tree species are more resistant to drought-induced branch embolism than what is currently admitted. Large hydraulic safety margins protect them from hydraulic fail...

Is vulnerability segmentation at the leaf-stem transition a drought resistance mechanism? A theoretical test with a trait-based model for Neotropical canopy tree species

Archive ouverte | Levionnois, Sébastien | CCSD

International audience. Key message: Leaf-stem vulnerability segmentation predicts lower xylem embolism resistance in leaves than stem. However, although it has been intensively investigated these past decades, the ...

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