Interactive effects of tree species mixture and climate on foliar and woody trait variation in in a widely distributed deciduous tree
Por favor, use este identificador para citar o enlazar este ítem:
http://hdl.handle.net/10045/117230
Título: | Interactive effects of tree species mixture and climate on foliar and woody trait variation in in a widely distributed deciduous tree |
---|---|
Autor/es: | Didion-Gency, Margaux | Bachofen, Christoph | Buchmann, Nina | Gessler, Arthur | Morin, Xavier | Vicente Bartolí, Eduardo | Vollenweider, Pierre | Grossiord, Charlotte |
Grupo/s de investigación o GITE: | Gestión de Ecosistemas y de la Biodiversidad (GEB) |
Centro, Departamento o Servicio: | Universidad de Alicante. Instituto Multidisciplinar para el Estudio del Medio "Ramón Margalef" |
Palabras clave: | Anatomy | Climatic stress | Functional traits | Morphology | Phenotypic plasticity | Species composition |
Área/s de conocimiento: | Ecología |
Fecha de publicación: | 31-jul-2021 |
Editor: | Wiley | British Ecological Society |
Cita bibliográfica: | Functional Ecology. 2021, 35(11): 2397-2408. https://doi.org/10.1111/1365-2435.13898 |
Resumen: | Despite increasing reports of severe drought and heat impacts on forest ecosystems, community-level processes, which could potentially modulate tree responses to climatic stress, are rarely accounted for. While numerous studies indicate a positive effect of species diversity on a wide range of ecosystem functions and services, little is known about how species interactions influence tree responses to climatic variability. We quantified the intraspecific variation in 16 leaf and wood physiological, morphological, and anatomical traits in mature beech trees (Fagus sylvatica L.) at six sites located along a climatic gradient in the French Alps. At each site, we studied pure beech and mixed stands with silver fir (Abies alba Mill.) or downy oak (Quercus pubescens Willd.). We tested how functional traits differed between the two species mixtures (pure vs. mixed stands) within each site and along the climatic gradient. We found significant changes in many traits along the climatic gradient as conditions progressively got drier and warmer. Independent of the mixture, reduced leaf-level CO2 assimilation, stomatal size, and thicker leaf cuticles, consistent with a more conservative resource use strategy, were found. At the drier sites, higher foliar stable carbon isotopic composition (δ13C), thicker mesophyll tissues, and lower specific leaf area (SLA) in pure stands suggests that beech had more acquisitive traits there compared to mixed stands. At the wetter sites, trees in beech-silver fir mixtures had higher chlorophyll concentration, lower δ13C, larger xylem vessels, and higher SLA, suggesting a more acquisitive resource use strategy in mixed stands than in pure stands. Our work revealed that species interactions are significant modulators of functional traits, and that they can be just as important drivers of intraspecific trait variation as climatic conditions. We show that downy oak mixtures lead to an adaptive drought response by common beech in dry environments. In contrast, in milder climates, interactions with silver fir seem to increase beech’ resource acquisition and productivity. These findings highlight a strong context-dependency and imply that incorporating local interspecific interactions in research on climate impacts could improve our understanding and predictions of forest dynamics. |
Patrocinador/es: | MD and CG were supported by the Swiss National Science Foundation SNF (PZ00P3_174068). CG is supported by the Sandoz Family Foundation. The plot design used in this study is part of the GMAP plot network (https://oreme.org/observation/foret/gmap/), partly funded by the OSU OREME in Montpellier, France. |
URI: | http://hdl.handle.net/10045/117230 |
ISSN: | 0269-8463 (Print) | 1365-2435 (Online) |
DOI: | 10.1111/1365-2435.13898 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2021 The Authors. Functional Ecology published by John Wiley & Sons Ltd on behalf of British Ecological Society. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1111/1365-2435.13898 |
Aparece en las colecciones: | INV - GEB - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Didion-Gency_etal_2021_FunctEcol.pdf | 1,38 MB | Adobe PDF | Abrir Vista previa | |
Todos los documentos en RUA están protegidos por derechos de autor. Algunos derechos reservados.