Climate change-related growth improvements in a wide niche-breadth tree species across contrasting environments
Background and Aims The vulnerability and responsiveness of forests to drought are immensely variable across biomes. Intraspecific tree responses to drought in species with wide niche breadths that grow across contrasting climatically environments might provide key information regarding forest resis...
| Main Authors: | , , , , , , |
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| Format: | Artículo |
| Language: | Inglés |
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Oxford University Press
2023
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| Online Access: | http://hdl.handle.net/20.500.12123/16030 https://academic.oup.com/aob/article-abstract/131/6/941/7095679 https://doi.org/10.1093/aob/mcad053 |
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| author | Fajardo, Alex Gazol, Antonio Moreno Meynard, Paulo Mayr, Christoph Martínez Pastur, Guillermo José Peri, Pablo Luis Camarero, Julio |
| author_browse | Camarero, Julio Fajardo, Alex Gazol, Antonio Martínez Pastur, Guillermo José Mayr, Christoph Moreno Meynard, Paulo Peri, Pablo Luis |
| author_facet | Fajardo, Alex Gazol, Antonio Moreno Meynard, Paulo Mayr, Christoph Martínez Pastur, Guillermo José Peri, Pablo Luis Camarero, Julio |
| author_sort | Fajardo, Alex |
| collection | INTA Digital |
| description | Background and Aims The vulnerability and responsiveness of forests to drought are immensely variable across biomes. Intraspecific tree responses to drought in species with wide niche breadths that grow across contrasting climatically environments might provide key information regarding forest resistance and changes in species distribution under climate change. Using a species with an exceptionally wide niche breath, we tested the hypothesis that tree populations thriving in dry environments are more resistant to drought than those growing in moist locations. • Methods We determined temporal trends in tree radial growth of 12 tree populations of Nothofagus antarctica (Nothofagaceae) located across a sharp precipitation gradient (annual precipitation of 500–2000 mm) in Chile and Argentina. Using dendrochronological methods, we fitted generalized additive mixed-effect models to predict the annual basal area increment as a function of year and dryness (De Martonne aridity index). We also measured carbon and oxygen isotope signals (and estimated intrinsic water-use efficiency) to provide potential physiological causes for tree growth responses to drought.
• Key Results We found unexpected improvements in growth during 1980–1998 in moist sites, while growth responses in dry sites were mixed. All populations, independent of site moisture, showed an increase in their intrinsic water-use efficiency in recent decades, a tendency that seemed to be explained by an increase in the photosynthetic rate instead of drought-induced stomatal closure, given that δ18O did not change with time. • Conclusions The absence of drought-induced negative effects on tree growth in a tree species with a wide niche breadth is promising because it might relate to the causal mechanisms tree species possess to face ongoing
drought events. We suggest that the drought resistance of N. antarctica might be attributable to its low stature and relatively low growth rate. |
| format | Artículo |
| id | INTA16030 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Oxford University Press |
| publisherStr | Oxford University Press |
| record_format | dspace |
| spelling | INTA160302024-07-17T12:16:06Z Climate change-related growth improvements in a wide niche-breadth tree species across contrasting environments Fajardo, Alex Gazol, Antonio Moreno Meynard, Paulo Mayr, Christoph Martínez Pastur, Guillermo José Peri, Pablo Luis Camarero, Julio Primary Forests Drought Stress Ecology Water-use Efficiency Isotopes Precipitation Bosques Primarios Estrés de Sequia Ecología Eficacia en el Uso del Agua Isótopos Precipitación Atmosférica Nothofagus Chile Argentina Global Change Ecology Plant–climate Interactions Tree Growth Trend Ecología del Cambio Global Interacción Planta-clima Tendencia de Crecimiento de los Arboles Región Patagónica Bosques Nativos Background and Aims The vulnerability and responsiveness of forests to drought are immensely variable across biomes. Intraspecific tree responses to drought in species with wide niche breadths that grow across contrasting climatically environments might provide key information regarding forest resistance and changes in species distribution under climate change. Using a species with an exceptionally wide niche breath, we tested the hypothesis that tree populations thriving in dry environments are more resistant to drought than those growing in moist locations. • Methods We determined temporal trends in tree radial growth of 12 tree populations of Nothofagus antarctica (Nothofagaceae) located across a sharp precipitation gradient (annual precipitation of 500–2000 mm) in Chile and Argentina. Using dendrochronological methods, we fitted generalized additive mixed-effect models to predict the annual basal area increment as a function of year and dryness (De Martonne aridity index). We also measured carbon and oxygen isotope signals (and estimated intrinsic water-use efficiency) to provide potential physiological causes for tree growth responses to drought. • Key Results We found unexpected improvements in growth during 1980–1998 in moist sites, while growth responses in dry sites were mixed. All populations, independent of site moisture, showed an increase in their intrinsic water-use efficiency in recent decades, a tendency that seemed to be explained by an increase in the photosynthetic rate instead of drought-induced stomatal closure, given that δ18O did not change with time. • Conclusions The absence of drought-induced negative effects on tree growth in a tree species with a wide niche breadth is promising because it might relate to the causal mechanisms tree species possess to face ongoing drought events. We suggest that the drought resistance of N. antarctica might be attributable to its low stature and relatively low growth rate. EEA Santa Cruz Fil: Fajardo, Alex. Universidad de Talca. Instituto de Investigación Interdisciplinaria. Vicerrectoría Académica. Campus Lircay; Chile. Fil: Gazol, Antonio. Instituto Pirenaico de Ecología (IPE-CSIC); España Fil: Moreno Meynard, Paulo. Centro de Investigación en Ecosistemas de la Patagonia (CIEP); Chile. Fil: Mayr, Christoph. Friedrich-Alexander-Universität Institut für Geographie; Alemania Fil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas (CADIC); Argentina. Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral (UNPA); Argentina. Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Camarero, Julio. Instituto Pirenaico de Ecología (IPE-CSIC); España 2023-11-28T10:51:57Z 2023-11-28T10:51:57Z 2023-05-09 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/16030 https://academic.oup.com/aob/article-abstract/131/6/941/7095679 Fajardo A.; Gazol A.; Moreno Meynard P.; Mayr C.; Martínez Pastur G.; Peri P.L.; Camarero J.J. (2023) Climate change-related growth improvements in a wide niche-breadth tree species across contrasting environments. Annals of Botany 131: 941–951. 1095-8290 (Online) 0305-7364 (Print) https://doi.org/10.1093/aob/mcad053 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Oxford University Press Annals of Botany 131 (6) : 941–951. (May 2023) |
| spellingShingle | Primary Forests Drought Stress Ecology Water-use Efficiency Isotopes Precipitation Bosques Primarios Estrés de Sequia Ecología Eficacia en el Uso del Agua Isótopos Precipitación Atmosférica Nothofagus Chile Argentina Global Change Ecology Plant–climate Interactions Tree Growth Trend Ecología del Cambio Global Interacción Planta-clima Tendencia de Crecimiento de los Arboles Región Patagónica Bosques Nativos Fajardo, Alex Gazol, Antonio Moreno Meynard, Paulo Mayr, Christoph Martínez Pastur, Guillermo José Peri, Pablo Luis Camarero, Julio Climate change-related growth improvements in a wide niche-breadth tree species across contrasting environments |
| title | Climate change-related growth improvements in a wide niche-breadth tree species across contrasting environments |
| title_full | Climate change-related growth improvements in a wide niche-breadth tree species across contrasting environments |
| title_fullStr | Climate change-related growth improvements in a wide niche-breadth tree species across contrasting environments |
| title_full_unstemmed | Climate change-related growth improvements in a wide niche-breadth tree species across contrasting environments |
| title_short | Climate change-related growth improvements in a wide niche-breadth tree species across contrasting environments |
| title_sort | climate change related growth improvements in a wide niche breadth tree species across contrasting environments |
| topic | Primary Forests Drought Stress Ecology Water-use Efficiency Isotopes Precipitation Bosques Primarios Estrés de Sequia Ecología Eficacia en el Uso del Agua Isótopos Precipitación Atmosférica Nothofagus Chile Argentina Global Change Ecology Plant–climate Interactions Tree Growth Trend Ecología del Cambio Global Interacción Planta-clima Tendencia de Crecimiento de los Arboles Región Patagónica Bosques Nativos |
| url | http://hdl.handle.net/20.500.12123/16030 https://academic.oup.com/aob/article-abstract/131/6/941/7095679 https://doi.org/10.1093/aob/mcad053 |
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