Aridity and cold temperatures drive divergent adjustments of European beech xylem anatomy, hydraulics, and leaf physiological traits Get access Arrow
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Title: | Aridity and cold temperatures drive divergent adjustments of European beech xylem anatomy, hydraulics, and leaf physiological traits Get access Arrow |
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Authors: | Vicente Bartolí, Eduardo | Didion-Gency, Margaux | Morcillo Juliá, Luna | Morin, Xavier | Vilagrosa, Alberto | Grossiord, Charlotte |
Research Group/s: | Gestión de Ecosistemas y de la Biodiversidad (GEB) |
Center, Department or Service: | Universidad de Alicante. Departamento de Ecología | Universidad de Alicante. Instituto Multidisciplinar para el Estudio del Medio "Ramón Margalef" | CEAM (Centro de Estudios Ambientales del Mediterráneo) |
Keywords: | Intraspecific trait variation | Trait coordination | Trait variances | Water use | Climatic stress | Xylem hydraulics | Leaf physiology |
Knowledge Area: | Ecología |
Issue Date: | 14-Mar-2022 |
Publisher: | Oxford University Press |
Citation: | Tree Physiology. 2022, 42(9): 1720-1735. https://doi.org/10.1093/treephys/tpac029 |
Abstract: | Understanding plant trait coordination and variance across climatic gradients is critical for assessing forests’ adaptive potential to climate change. We measured eleven hydraulic, anatomical and leaf-level physiological traits in European beech (Fagus sylvatica L.) along a moisture and temperature gradient in the French Alps. We assessed how traits covaried, and how their population-level variances shifted along the gradient. The intrapopulation variances of vessel size and xylem-specific conductivity reduced in colder locations as narrow vessels were observed in response to low temperature. This decreased individual-level water transport capacity compared to the warmer and more xeric sites. Conversely, the maximum stomatal conductance and Huber value variances were constrained in the arid and warm locations, where trees showed restricted gas exchange and higher xylem-specific conductivity. The populations growing under drier and warmer conditions presented wide variance for the xylem anatomical and hydraulic traits. Our results suggest that short-term physiological acclimation to raising aridity and heat in southern beech populations may occur mainly at the leaf level. Furthermore, the wide variance of the xylem anatomical and hydraulic traits at these sites may be advantageous since more heterogeneous hydraulic conductivity could imply populations’ greater tree-tree complementarity and resilience against climatic variability. Our study highlights that both intrapopulation trait variance and trait network analysis are key approaches for understanding species adaptation and the acclimation potential to a shifting environment. |
Sponsor: | EV was supported by a predoctoral fellowship funded by the Spanish Ministry of Economy and Competitiveness as part of Project HYDROMED (PID2019-111332RB-C21). AV and LM were supported by Projects INERTIA (PID2019-111332RB-C22), and IMAGINA (Prometeu program/2019/110, GVA). L.M. was additionally supported by the Spanish MICINN (PTA2019-018094). AV was also supported by a WSL Visiting Fellowship. MD and CG were supported by the Swiss National Science Foundation (SNF) (PZ00P3_174068) and the Sandoz Family Foundation. The plot design used in this study forms part of the GMAP plot network (https://oreme.org/observation/foret/gmap/), partly funded by the OSU OREME in Montpellier, and by the ANR project BioProFor (contract no. 11‐PDOC‐030‐01). The CEAM foundation is supported by the Generalitat Valenciana. |
URI: | http://hdl.handle.net/10045/122254 |
ISSN: | 0829-318X (Print) | 1758-4469 (Online) |
DOI: | 10.1093/treephys/tpac029 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © The Author(s) 2022. Published by Oxford University Press |
Peer Review: | si |
Publisher version: | https://doi.org/10.1093/treephys/tpac029 |
Appears in Collections: | INV - GEB - Artículos de Revistas |
Files in This Item:
File | Description | Size | Format | |
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Vicente_etal_2022_TreePhysiol_accepted.pdf | Accepted Manuscript (acceso abierto) | 1,21 MB | Adobe PDF | Open Preview |
Vicente_etal_2022_TreePhysiol_final.pdf | Versión final (acceso restringido) | 1,73 MB | Adobe PDF | Open Request a copy |
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