Abstract
Understanding how plants adjust their hydraulic system to the environment is essential to predict how these organisms will respond to global change. Here we compiled a dataset and performed meta-analysis on 223 studies on plastic and evolutionary adjustments of hydraulic traits to air temperature, CO2 concentration, irradiance, soil nutrient and water availability. On average, species plastically increased embolism resistance and sapwood area per leaf area under drier conditions, with a decrease in stem-specific hydraulic conductivity and water potential at the turgor loss point, which are consistent with adaptive responses. However, the average increased embolism resistance was not sufficient to compensate the reduction in the minimum water potential, implying a lower safety margin from lethal hydraulic failure under drought. These results point towards a general critical increase in the risk of hydraulic failure in future drier environments. Plastic responses to increased soil nutrient content and irradiance did not always align with those to drought, highlighting the potential for changes in light and nutrient conditions to modify plant hydraulic responses to climate-change-driven droughts.
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Data availability
The dataset used in this Article with the metadata information is available via Zenodo at https://doi.org/10.5281/zenodo.14582442 (ref. 86).
Code availability
The code used is available via GitHub at https://github.com/ramirezval/Ramirez-Valiente-etal-2025.
Change history
16 September 2025
In the version of the article initially published, the second affiliation of Jordi Martínez-Vilalta was incorrect and has now been amended to affiliation 3 (Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain) in the HTML and PDF versions of the article.
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Acknowledgements
M.M. acknowledges support by the Spanish Ministry of Economy and Competitiveness (MINECO) via grant CGL2017-89149-C2-1-R (DRESS) and EU-2020 programme via grant 862221 (FORGENIUS). J.A.R.-V. was supported by a research contract financed by the AEI (Spanish Research Agency) and Ministry of Science through the Severo Ochoa Program for Centres of Excellence in R+D+I (CEX2018-000828-S) and competitive grants TED2021-129570B-I00 and PID2021-126399NB-I00. J.M.-V. acknowledges support from competitive grants CGL2017-89149-C2-1-R and PID2021-127452NB-I00 funded by MCIN/AEI (https://doi.org/10.13039/501100011033), by grant 2021 SGR 00849 funded by AGAUR and by an ICREA Academia award.
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R.P., C.J.B., A.C., E.C., H.C., D.C., S.D., R.G.-V., J.-M.L., R.L., N.M.-S. My. Mo., L.S.S., B.S., J.M.T.-R., A.V., J.M.-V. and Ma. Me. conceptualized the idea and compiled the database. J.A.R.-V. and R.P. conducted the analyses. J.A.R.-V. wrote the first draft, and R.P., C.J.B., A.C., E.C., H.C., D.C., S.D., R.G.-V., J.-M.L., R.L., N.M.-S. My. Mo., L.R., L.S.S., B.S., J.M.T.-R., A.V., J.M.-V. and Ma. Me contributed with substantial revisions.
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Ramírez-Valiente, J.A., Poyatos, R., Blackman, C.J. et al. Limited plastic responses in safety traits support greater hydraulic risk under drier conditions. Nat Ecol Evol 9, 1825–1836 (2025). https://doi.org/10.1038/s41559-025-02830-4
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DOI: https://doi.org/10.1038/s41559-025-02830-4


