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2. When a Tree Dies in the Forest: Scaling Climate-Driven Tree Mortality to Ecosystem Water and Carbon Fluxes

Author

Anderegg, William RL, Martinez-Vilalta, Jordi, Cailleret, Maxime, Camarero, Jesus Julio, Ewers, Brent E, Galbraith, David, Gessler, Arthur, Grote, Rüdiger, Huang, Cho-ying, Levick, Shaun R, Powell, Thomas L, Rowland, Lucy, Sánchez-Salguero, Raúl, and Trotsiuk, Volodymyr

Subjects
Zoology, Biological Sciences, Climate Action, disturbance, recovery, resilience, productivity, biodiversity, carbon and water fluxes, Environmental Sciences, Ecology
Abstract

Drought- and heat-driven tree mortality, along with associated insect outbreaks, have been observed globally in recent decades and are expected to increase in future climates. Despite its potential to profoundly alter ecosystem carbon and water cycles, how tree mortality scales up to ecosystem functions and fluxes is uncertain. We describe a framework for this scaling where the effects of mortality are a function of the mortality attributes, such as spatial clustering and functional role of the trees killed, and ecosystem properties, such as productivity and diversity. We draw upon remote-sensing data and ecosystem flux data to illustrate this framework and place climate-driven tree mortality in the context of other major disturbances. We find that emerging evidence suggests that climate-driven tree mortality impacts may be relatively small and recovery times are remarkably fast (~4 years for net ecosystem production). We review the key processes in ecosystem models necessary to simulate the effects of mortality on ecosystem fluxes and highlight key research gaps in modeling. Overall, our results highlight the key axes of variation needed for better monitoring and modeling of the impacts of tree mortality and provide a foundation for including climate-driven tree mortality in a disturbance framework.

Published
2016

9. A critical thermal transition driving spring phenology of Northern Hemisphere conifers

Author

Huang, Jian‐Guo, primary, Zhang, Yaling, additional, Wang, Minhuang, additional, Yu, Xiaohan, additional, Deslauriers, Annie, additional, Fonti, Patrick, additional, Liang, Eryuan, additional, Mäkinen, Harri, additional, Oberhuber, Walter, additional, Rathgeber, Cyrille B. K., additional, Tognetti, Roberto, additional, Treml, Václav, additional, Yang, Bao, additional, Zhai, Lihong, additional, Zhang, Jiao‐Lin, additional, Antonucci, Serena, additional, Bergeron, Yves, additional, Camarero, Jesus Julio, additional, Campelo, Filipe, additional, Čufar, Katarina, additional, Cuny, Henri E., additional, De Luis, Martin, additional, Fajstavr, Marek, additional, Giovannelli, Alessio, additional, Gričar, Jožica, additional, Gruber, Andreas, additional, Gryc, Vladimír, additional, Güney, Aylin, additional, Jyske, Tuula, additional, Kašpar, Jakub, additional, King, Gregory, additional, Krause, Cornelia, additional, Lemay, Audrey, additional, Liu, Feng, additional, Lombardi, Fabio, additional, del Castillo, Edurne Martinez, additional, Morin, Hubert, additional, Nabais, Cristina, additional, Nöjd, Pekka, additional, Peters, Richard L., additional, Prislan, Peter, additional, Saracino, Antonio, additional, Shishov, Vladimir V., additional, Swidrak, Irene, additional, Vavrčík, Hanuš, additional, Vieira, Joana, additional, Zeng, Qiao, additional, Liu, Yu, additional, and Rossi, Sergio, additional

Published
2022
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10. A critical thermal transition driving spring phenology of Northern Hemisphere conifers.

Author

Huang, Jian‐Guo, Zhang, Yaling, Wang, Minhuang, Yu, Xiaohan, Deslauriers, Annie, Fonti, Patrick, Liang, Eryuan, Mäkinen, Harri, Oberhuber, Walter, Rathgeber, Cyrille B. K., Tognetti, Roberto, Treml, Václav, Yang, Bao, Zhai, Lihong, Zhang, Jiao‐Lin, Antonucci, Serena, Bergeron, Yves, Camarero, Jesus Julio, Campelo, Filipe, and Čufar, Katarina

Subjects
PLANT phenology, SPRING, CLIMATE change, PHENOLOGY, CONIFERS, GLOBAL warming
Abstract

Despite growing interest in predicting plant phenological shifts, advanced spring phenology by global climate change remains debated. Evidence documenting either small or large advancement of spring phenology to rising temperature over the spatio‐temporal scales implies a potential existence of a thermal threshold in the responses of forests to global warming. We collected a unique data set of xylem cell‐wall‐thickening onset dates in 20 coniferous species covering a broad mean annual temperature (MAT) gradient (−3.05 to 22.9°C) across the Northern Hemisphere (latitudes 23°–66° N). Along the MAT gradient, we identified a threshold temperature (using segmented regression) of 4.9 ± 1.1°C, above which the response of xylem phenology to rising temperatures significantly decline. This threshold separates the Northern Hemisphere conifers into cold and warm thermal niches, with MAT and spring forcing being the primary drivers for the onset dates (estimated by linear and Bayesian mixed‐effect models), respectively. The identified thermal threshold should be integrated into the Earth‐System‐Models for a better understanding of spring phenology in response to global warming and an improved prediction of global climate‐carbon feedbacks. [ABSTRACT FROM AUTHOR]

Published
2023
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12. Differential age and species growth responses to climate warming detected in old-growth Mediterranean mountain forests 

Author

Colangelo, Michele, primary, Camarero, Jesus Julio, additional, Gazol, Antonio, additional, Borghetti, Marco, additional, Baliva, Michele, additional, Gentilesca, Tiziana, additional, Piovesan, Gianluca, additional, Rita, Angelo, additional, Lapolla, Antonio, additional, Schettino, Aldo, additional, and Ripullone, Francesco, additional

Published
2021
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16. Early-Warning Signals of Individual Tree Mortality Based on Annual Radial Growth

Author

Cailleret, Maxime, Dakos, Vasilis, Jansen, Steven, Robert, Elisabeth, Aakala, Tuomas, Amoroso, Mariano, Antos, Joe, Bigler, Christof, Bugmann, Harald, Caccianaga, Marco, Camarero, Jesus-Julio, Cherubini, Paolo, Coyea, Marie, Das, Adrian, Davi, Hendrik, Gea-Izquierdo, Guillermo, Gillner, Sten, Haavik, Laurel, Hartmann, Henrik, Hereş, Ana-Maria, Hultine, Kevin, Janda, Pavel, Kane, Jeffrey, Kharuk, Viachelsav, Kitzberger, Thomas, Klein, Tamir, Levanic, Tom, Linares, Juan-Carlos, Lombardi, Fabio, Mäkinen, Harri, Meszaros, Ilona, Metsaranta, Juha, Oberhuber, Walter, Papadopoulos, Andreas, Petritan, Any Mary, Rohner, Brigitte, Sanguesa-Barreda, Gabriel, Smith, Jeremy, Stan, Amanda, Stojanovic, Dejan, Suarez, Maria-Laura, Svoboda, Miroslav, Trotsiuk, Volodymyr, Villalba, Ricardo, Westwood, Alana, Wyckoff, Peter, Martinez-Vilalta, Jordi, Dakos, Vasilis, Institut des cellules souches pour le traitement et l'étude des maladies monogéniques (I-STEM), Université d'Évry-Val-d'Essonne (UEVE)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Généthon, Institut des Sciences de l'Evolution de Montpellier (UMR ISEM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement [IRD] : UR226-Centre National de la Recherche Scientifique (CNRS), Institute for Systematic Botany and Ecology, Universität Ulm - Ulm University [Ulm, Allemagne], Centre méditérannéen de médecine moléculaire (C3M), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut National de la Santé et de la Recherche Médicale (INSERM), Helsingin yliopisto = Helsingfors universitet = University of Helsinki, Institute of Terrestrial Ecosystems (ITES), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Unité de Recherches Forestières Méditerranéennes (URFM), Institut National de la Recherche Agronomique (INRA), Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE), Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institute of Forest Botany and Forest Zoology, Max-Planck-Institut für Biogeochemie (MPI-BGC), Czech University of Life Science, Universidad Nacional del Comahue [Neuquén] (UNCOMA), Agricultural Research Organization, Slovenian Forestry Institute, Dipartimento AGR, Università degli Studi Mediterranea di Reggio Calabria, Natural Resources Institute Finland (LUKE), University of Debrecen, Leopold Franzens Univ Innsbruck, Inst Bot, Innsbruck, Austria, Université Paris Diderot - Paris 7 (UPD7), Department of Forestry and Natural Environment Management, Technological Education Institute of Lamia, Institute of Terretrial Ecosystems, Instituto Pirenaico de Ecologia = Pyrenean Institute of Ecology (IPE), University of Novi Sad, Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales [Mendoza] (CONICET-IANIGLA), Consejo Nacional de Investigaciones Científicas y Técnicas [Buenos Aires] (CONICET)-Universidad Nacional de Cuyo [Mendoza] (UNCUYO), Ecolog Unit, Universitat Autònoma de Barcelona (UAB), FP1106, P4-0015, NKFI-SNN-125652, PN-III-P1-1.1-TE-2016-1508, FJCI 2016-30121, III 43007, Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE), Instituto Pirenaico de Ecologìa = Pyrenean Institute of Ecology [Zaragoza] (IPE - CSIC), École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de recherche pour le développement [IRD] : UR226, Université Nice Sophia Antipolis (... - 2019) (UNS), University of Helsinki, Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Collège de France (CdF (institution))-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA), Natural resources institute Finland, Instituto Pirenaico de Ecologia (IPE), and Consejo Superior de Investigaciones Científicas [Madrid] (CSIC)

Subjects
[SDE] Environmental Sciences, [SDE.BE] Environmental Sciences/Biodiversity and Ecology, forest, growth, [SDE]Environmental Sciences, tree mortality, drought, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, biotic agents, variance, resilience indicators, ring-width
Abstract

International audience; Tree mortality is a key driver of forest dynamics and its occurrence is projected to increase in the future due to climate change. Despite recent advances in our understanding of the physiological mechanisms leading to death, we still lack robust indicators of mortality risk that could be applied at the individual tree scale. Here, we build on a previous contribution exploring the differences in growth level between trees that died and survived a given mortality event to assess whether changes in temporal autocorrelation, variance, and synchrony in time-series of annual radial growth data can be used as early warning signals of mortality risk. Taking advantage of a unique global ring-width database of 3065 dead trees and 4389 living trees growing together at 198 sites (belonging to 36 gymnosperm and angiosperm species), we analyzed temporal changes in autocorrelation, variance, and synchrony before tree death (diachronic analysis), and also compared these metrics between trees that died and trees that survived a given mortality event (synchronic analysis). Changes in autocorrelation were a poor indicator of mortality risk. However, we found a gradual increase in inter- annual growth variability and a decrease in growth synchrony in the last similar to 20 years before mortality of gymnosperms, irrespective of the cause of mortality. These changes could be associated with drought-induced alterations in carbon economy and allocation patterns. In angiosperms, we did not find any consistent changes in any metric. Such lack of any signal might be explained by the relatively high capacity of angiosperms to recover after a stress-induced growth decline. Our analysis provides a robust method for estimating early-warning signals of tree mortality based on annual growth data. In addition to the frequently reported decrease in growth rates, an increase in inter-annual growth variability and a decrease in growth synchrony may be powerful predictors of gymnosperm mortality risk, but not necessarily so for angiosperms.

Published
2019

18. Regime shifts of Mediterranean forest carbon uptake and reduced resilience driven by multidecadal ocean surface temperatures

Author

Carnicer, Jofre, primary, Domingo‐Marimon, Cristina, additional, Ninyerola, Miquel, additional, Camarero, Jesus Julio, additional, Bastos, Ana, additional, López‐Parages, Jorge, additional, Blanquer, Laura, additional, Rodríguez‐Fonseca, Belén, additional, Lenton, Timothy M., additional, Dakos, Vasilis, additional, Ribas, Montserrat, additional, Gutiérrez, Emilia, additional, Peñuelas, Josep, additional, and Pons, Xavier, additional

Published
2019
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19. Chilling and forcing temperatures interact to predict the onset of wood formation in Northern Hemisphere conifers

Author

Delpierre, Nicolas, primary, Lireux, Ségolène, additional, Hartig, Florian, additional, Camarero, Jesus Julio, additional, Cheaib, Alissar, additional, Čufar, Katarina, additional, Cuny, Henri, additional, Deslauriers, Annie, additional, Fonti, Patrick, additional, Gričar, Jožica, additional, Huang, Jian‐Guo, additional, Krause, Cornelia, additional, Liu, Guohua, additional, de Luis, Martin, additional, Mäkinen, Harri, additional, del Castillo, Edurne Martinez, additional, Morin, Hubert, additional, Nöjd, Pekka, additional, Oberhuber, Walter, additional, Prislan, Peter, additional, Rossi, Sergio, additional, Saderi, Seyedeh Masoumeh, additional, Treml, Vaclav, additional, Vavrick, Hanus, additional, and Rathgeber, Cyrille B. K., additional

Published
2019
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20. The impact of drought spells on forests depends on site conditions: The case of 2017 summer heat wave in southern Europe.

Author

Rita, Angelo, Camarero, Jesus Julio, Nolè, Angelo, Borghetti, Marco, Brunetti, Michele, Pergola, Nicola, Serio, Carmine, Vicente‐Serrano, Sergio M., Tramutoli, Valerio, and Ripullone, Francesco

Subjects
*HEAT waves (Meteorology), *WATER balance (Hydrology), *NORMALIZED difference vegetation index, *DROUGHTS, *PRECIPITATION variability, *CLUSTER pine, *FOREST productivity
Abstract

A major component of climate change is an increase in temperature and precipitation variability. Over the last few decades, an increase in the frequency of extremely warm temperatures and drought severity has been observed across Europe. These warmer and drier conditions may reduce productivity and trigger compositional shifts in forest communities. However, we still lack a robust, biogeographical characterization of the negative impacts of climate extremes, such as droughts on forests. In this context, we investigated the impact of the 2017 summer drought on European forests. The normalized difference vegetation index (NDVI) was used as a proxy of forest productivity and was related to the standardized precipitation evapotranspiration index, which accounts for the temperature effects of the climate water balance. The spatial pattern of NDVI reduction in 2017 was largely driven by the extremely warm summer for parts of the central and eastern Mediterranean Basin (Italian and Balkan Peninsulas). The vulnerability to the 2017 summer drought was heterogeneously distributed over Europe, and topographic factors buffered some of the negative impacts. Mediterranean forests dominated by oak species were the most negatively impacted, whereas Pinus pinaster was the most resilient species. The impact of drought on the NDVI decreased at high elevations and mainly on east and north‐east facing slopes. We illustrate how an adequate characterization of the coupling between climate conditions and forest productivity (NDVI) allows the determination of the most vulnerable areas to drought. This approach could be widely used for other extreme climate events and when considering other spatially resolved proxies of forest growth and health. [ABSTRACT FROM AUTHOR]

Published
2020
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22. Forest resilience to drought varies across biomes

Author

Gazol, Antonio, primary, Camarero, Jesus Julio, additional, Vicente‐Serrano, Sergio M., additional, Sánchez‐Salguero, Raúl, additional, Gutiérrez, Emilia, additional, de Luis, Martin, additional, Sangüesa‐Barreda, Gabriel, additional, Novak, Klemen, additional, Rozas, Vicente, additional, Tíscar, Pedro A., additional, Linares, Juan C., additional, Martín‐Hernández, Natalia, additional, Martínez del Castillo, Edurne, additional, Ribas, Montse, additional, García‐González, Ignacio, additional, Silla, Fernando, additional, Camisón, Alvaro, additional, Génova, Mar, additional, Olano, José M., additional, Longares, Luis A., additional, Hevia, Andrea, additional, Tomás‐Burguera, Miquel, additional, and Galván, J. Diego, additional

Published
2018
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23. Climate seasonality limits carbon assimilation and storage in tropical forests

Author

Wagner, Fabien, Hérault, Bruno, Bonnal, Damien, Stahl, Clément, Anderson, Liana O., Baker, Timothy R., Becker, Gabriel Sebastian, Beeckman, Hans, Boanerges Souza, Danilo, Botosso, Paulo Cesar, Bowman, David M.J.S., Bräuning, Achim, Brede, Benjamin, Brown, Foster Irving, Camarero, Jesus Julio, Barbosa de Camargo, Plínio, Cardoso, Fernanda C.G., Alvim Carvalho, Fabrício, Castro, Wendeson, Koloski Chagas, Rubens, Chave, Jérôme, Chidumayo, Emmanuel N., Clark, Deborah A., Capellotto Costa, Flavia Regina, Couralet, Camille, da Silva Mauricio, Paulo Henrique, Dalitz, Helmut, Resende de Castro, Vinicius, de Freitas Milani, Jaçanan Eloisa, de Oliveira, Edilson Consuelo, de Souza Arruda, Luciano, Devineau, Jean-Louis, Drew, Davd M., Dünisch, Olivier, Durigan, Giselda, Elifuraha, Elisha, Fedele, Marcio, Ferreira Fedele, Ligia, Figueiredo Filho, Afonso, Guimarães Finger, César Augusto, Franco, Augusto César, Freitas Júnior, João Lima, Galvão, Franklin, Gebrekirstos, Aster, Gliniars, Robert, de Alencastro Graça, Paulo Maurício Lima, Griffiths, Anthony D., Grogan, James, Guan, Kaiyu, Homeier, Jürgen, Kanieski, Maria Raquel, Khoon Kho, Lip, Koenig, Jennifer, kohler, Sintia Valerio, Krepkowski, Julia, Lemos-Filho, José Pires, Lieberman, Diana, Lieberman, Milton Eugene, Lisi, Claudio Sergio, Longhi Santos, Tomaz, López Ayala, José Luis, Eijji Maeda, Eduardo, Malhi, Yadvinder, Maria, Vivian R.B., Marques, Marcia C.M., Marques, Renato, Maza Maza Chamba, Hector, Mbwambo, Lawrence, Lisboa Melgaço, Karina Liana, Mendivelso, Hooz Angela, Murphy, Brett P., O'Brien, Joseph J., Oberbauer, Steven F., Okada, Naoki, Pélissier, Raphaël, Prior, Lynda D., Roig, Fidel Alejandro, Ross, Michael, Rossatto, Davi Rodrigo, and Rossi, Vivien

Subjects
Litière forestière, Saison, Pluviométrie, F60 - Physiologie et biochimie végétale, Lumière, forêt tropicale, Bois, K01 - Foresterie - Considérations générales, Photosynthèse, Climat, Indice de surface foliaire, Évapotranspiration, séquestration du carbone, Écosystème forestier, production, Cycle du carbone
Abstract

The seasonal climate drivers of the carbon cycle in tropical forests remain poorly known, although these forests account for more carbon assimilation and storage than any other terrestrial ecosystem. Based on a unique combination of seasonal pan-tropical data sets from 89 experimental sites (68 include aboveground wood productivity measurements and 35 litter productivity measurements), their associate canopy photosynthetic capacity (enhanced vegetation index, EVI) and climate, we ask how carbon assimilation and aboveground allocation are related to climate seasonality in tropical forests and how they interact in the seasonal carbon cycle. We found that canopy photosynthetic capacity seasonality responds positively to precipitation when rainfall is < 2000 mm.yr−1 (water-limited forests) and to radiation otherwise (light-limited forests); on the other hand, independent of climate limitations, wood productivity and litterfall are driven by seasonal variation in precipitation and evapotranspiration respectively. Consequently, light-limited forests present an asynchronism between canopy photosynthetic capacity and wood productivity. Precipitation first-order control indicates an overall decrease in tropical forest productivity in a drier climate.

Published
2016

26. Climate seasonality limits leaf carbon assimilation and wood productivity in tropical forests

Author

Wagner, Fabien H., Hérault, Bruno, Bonal, Damien, Stahl, Clément, Anderson, Liana O., Baker, Timothy R., Becker, Gabriel Sebastian, Beeckman, Hans, Boanerges Souza, Danilo, Botosso, Paulo Cesar, Bowman, David M.J.S., Bräuning, Achim, Brede, Benjamin, Brown, Foster Irving, Camarero, Jesus Julio, Camargo, Plínio Barbosa, Cardoso, Fernanda C.G., Carvalho, Fabrício Alvim, Castro, Wendeson, Chagas, Rubens Koloski, Chave, Jérome, Chidumayo, Emmanuel N., Clark, Deborah A., Costa, Flavia Regina Capellotto, Couralet, Camille, Da Silva Mauricio, Paulo Henrique, Dalitz, Helmut, De Castro, Vinicius Resende, De Freitas Milani, Jaçanan Eloisa, De Oliveira, Edilson Consuelo, De Souza Arruda, Luciano, Devineau, Jean-Louis, Drew, David M., Dünisch, Oliver, Durigan, Giselda, Elifuraha, Elisha, Fedele, Marcio, Ferreira Fedele, Ligia, Figueiredo Filho, Afonso, Finger, César Augusto Guimarães, Franco, Augusto César, Freitas Júnior, João Lima, Galvão, Franklin, Gebrekirstos, Aster, Gliniars, Robert, Lima De Alencastro Graça, Paulo Maurício, Griffiths, Anthony D., Grogan, James, Guan, Kaiyu, Homeier, Jürgen, Kanieski, Maria Raquel, Kho, Lip Khoon, Koenig, Jennifer, Kohler, Sintia Valerio, Krepkowski, Julia, Lemos-filho, José Pires, Lieberman, Diana, Lieberman, Milton Eugene, Lisi, Claudio Sergio, Longhi Santos, Tomaz, López Ayala, José Luis, Maeda, Eduardo Eijji, Malhi, Yadvinder, Maria, Vivian R.B., Marques, Marcia C.M., Marques, Renato, Maza Chamba, Hector, Mbwambo, Lawrence, Melgaço, Karina Liana Lisboa, Mendivelso, Hooz Angela, Murphy, Brett P., O'Brien, Joseph J., Oberbauer, Steven F., Okada, Naoki, Pélissier, Raphaël, Prior, Lynda D., Roig, Fidel Alejandro, Ross, Michael, Rossatto, Davi Rodrigo, Rossi, Vivien, Rowland, Lucy, Rutishauser, Ervan, Santana, Hellen, Schulze, Mark, Selhorst, Diogo, Silva, Williamar Rodrigues, Silveira, Marcos, Spannl, Susanne, Swaine, Michael D., Toledo, José Julio, Toledo, Marcos Miranda, Toledo, Marisol, Toma, Takeshi, Tomazello Filho, Mario, Valdez Hernández, Juan Ignacio, Verbesselt, Jan, Vieira, Simone Aparecida, Vincent, Grégoire, Volkmer De Castilho, Carolina, Volland, Franziska, Worbes, Martin, Zanon, Magda Lea Bolzan, Aragão, Luiz E.O.C., Wagner, Fabien H., Hérault, Bruno, Bonal, Damien, Stahl, Clément, Anderson, Liana O., Baker, Timothy R., Becker, Gabriel Sebastian, Beeckman, Hans, Boanerges Souza, Danilo, Botosso, Paulo Cesar, Bowman, David M.J.S., Bräuning, Achim, Brede, Benjamin, Brown, Foster Irving, Camarero, Jesus Julio, Camargo, Plínio Barbosa, Cardoso, Fernanda C.G., Carvalho, Fabrício Alvim, Castro, Wendeson, Chagas, Rubens Koloski, Chave, Jérome, Chidumayo, Emmanuel N., Clark, Deborah A., Costa, Flavia Regina Capellotto, Couralet, Camille, Da Silva Mauricio, Paulo Henrique, Dalitz, Helmut, De Castro, Vinicius Resende, De Freitas Milani, Jaçanan Eloisa, De Oliveira, Edilson Consuelo, De Souza Arruda, Luciano, Devineau, Jean-Louis, Drew, David M., Dünisch, Oliver, Durigan, Giselda, Elifuraha, Elisha, Fedele, Marcio, Ferreira Fedele, Ligia, Figueiredo Filho, Afonso, Finger, César Augusto Guimarães, Franco, Augusto César, Freitas Júnior, João Lima, Galvão, Franklin, Gebrekirstos, Aster, Gliniars, Robert, Lima De Alencastro Graça, Paulo Maurício, Griffiths, Anthony D., Grogan, James, Guan, Kaiyu, Homeier, Jürgen, Kanieski, Maria Raquel, Kho, Lip Khoon, Koenig, Jennifer, Kohler, Sintia Valerio, Krepkowski, Julia, Lemos-filho, José Pires, Lieberman, Diana, Lieberman, Milton Eugene, Lisi, Claudio Sergio, Longhi Santos, Tomaz, López Ayala, José Luis, Maeda, Eduardo Eijji, Malhi, Yadvinder, Maria, Vivian R.B., Marques, Marcia C.M., Marques, Renato, Maza Chamba, Hector, Mbwambo, Lawrence, Melgaço, Karina Liana Lisboa, Mendivelso, Hooz Angela, Murphy, Brett P., O'Brien, Joseph J., Oberbauer, Steven F., Okada, Naoki, Pélissier, Raphaël, Prior, Lynda D., Roig, Fidel Alejandro, Ross, Michael, Rossatto, Davi Rodrigo, Rossi, Vivien, Rowland, Lucy, Rutishauser, Ervan, Santana, Hellen, Schulze, Mark, Selhorst, Diogo, Silva, Williamar Rodrigues, Silveira, Marcos, Spannl, Susanne, Swaine, Michael D., Toledo, José Julio, Toledo, Marcos Miranda, Toledo, Marisol, Toma, Takeshi, Tomazello Filho, Mario, Valdez Hernández, Juan Ignacio, Verbesselt, Jan, Vieira, Simone Aparecida, Vincent, Grégoire, Volkmer De Castilho, Carolina, Volland, Franziska, Worbes, Martin, Zanon, Magda Lea Bolzan, and Aragão, Luiz E.O.C.

Abstract

The seasonal climate drivers of the carbon cycle in tropical forests remain poorly known, although these forests account for more carbon assimilation and storage than any other terrestrial ecosystem. Based on a unique combination of seasonal pan-tropical data sets from 89 experimental sites (68 include aboveground wood productivity measurements and 35 litter productivity measurements), their associated canopy photosynthetic capacity (enhanced vegetation index, EVI) and climate, we ask how carbon assimilation and aboveground allocation are related to climate seasonality in tropical forests and how they interact in the seasonal carbon cycle. We found that canopy photosynthetic capacity seasonality responds positively to precipitation when rainfall is < 2000 mm yr−1 (water-limited forests) and to radiation otherwise (light-limited forests). On the other hand, independent of climate limitations, wood productivity and litterfall are driven by seasonal variation in precipitation and evapotranspiration, respectively. Consequently, light-limited forests present an asynchronism between canopy photosynthetic capacity and wood productivity. First-order control by precipitation likely indicates a decrease in tropical forest productivity in a drier climate in water-limited forest, and in current light-limited forest with future rainfall < 2000 mm yr−1.

Published
2016

27. Climate seasonality limits leaf carbon assimilation and wood productivity in tropical forests

Author

Wagner, Fabien H., primary, Hérault, Bruno, additional, Bonal, Damien, additional, Stahl, Clément, additional, Anderson, Liana O., additional, Baker, Timothy R., additional, Becker, Gabriel Sebastian, additional, Beeckman, Hans, additional, Boanerges Souza, Danilo, additional, Botosso, Paulo Cesar, additional, Bowman, David M. J. S., additional, Bräuning, Achim, additional, Brede, Benjamin, additional, Brown, Foster Irving, additional, Camarero, Jesus Julio, additional, Camargo, Plínio Barbosa, additional, Cardoso, Fernanda C. G., additional, Carvalho, Fabrício Alvim, additional, Castro, Wendeson, additional, Chagas, Rubens Koloski, additional, Chave, Jérome, additional, Chidumayo, Emmanuel N., additional, Clark, Deborah A., additional, Costa, Flavia Regina Capellotto, additional, Couralet, Camille, additional, da Silva Mauricio, Paulo Henrique, additional, Dalitz, Helmut, additional, de Castro, Vinicius Resende, additional, de Freitas Milani, Jaçanan Eloisa, additional, de Oliveira, Edilson Consuelo, additional, de Souza Arruda, Luciano, additional, Devineau, Jean-Louis, additional, Drew, David M., additional, Dünisch, Oliver, additional, Durigan, Giselda, additional, Elifuraha, Elisha, additional, Fedele, Marcio, additional, Ferreira Fedele, Ligia, additional, Figueiredo Filho, Afonso, additional, Finger, César Augusto Guimarães, additional, Franco, Augusto César, additional, Freitas Júnior, João Lima, additional, Galvão, Franklin, additional, Gebrekirstos, Aster, additional, Gliniars, Robert, additional, Graça, Paulo Maurício Lima de Alencastro, additional, Griffiths, Anthony D., additional, Grogan, James, additional, Guan, Kaiyu, additional, Homeier, Jürgen, additional, Kanieski, Maria Raquel, additional, Kho, Lip Khoon, additional, Koenig, Jennifer, additional, Kohler, Sintia Valerio, additional, Krepkowski, Julia, additional, Lemos-Filho, José Pires, additional, Lieberman, Diana, additional, Lieberman, Milton Eugene, additional, Lisi, Claudio Sergio, additional, Longhi Santos, Tomaz, additional, López Ayala, José Luis, additional, Maeda, Eduardo Eijji, additional, Malhi, Yadvinder, additional, Maria, Vivian R. B., additional, Marques, Marcia C. M., additional, Marques, Renato, additional, Maza Chamba, Hector, additional, Mbwambo, Lawrence, additional, Melgaço, Karina Liana Lisboa, additional, Mendivelso, Hooz Angela, additional, Murphy, Brett P., additional, O'Brien, Joseph J., additional, Oberbauer, Steven F., additional, Okada, Naoki, additional, Pélissier, Raphaël, additional, Prior, Lynda D., additional, Roig, Fidel Alejandro, additional, Ross, Michael, additional, Rossatto, Davi Rodrigo, additional, Rossi, Vivien, additional, Rowland, Lucy, additional, Rutishauser, Ervan, additional, Santana, Hellen, additional, Schulze, Mark, additional, Selhorst, Diogo, additional, Silva, Williamar Rodrigues, additional, Silveira, Marcos, additional, Spannl, Susanne, additional, Swaine, Michael D., additional, Toledo, José Julio, additional, Toledo, Marcos Miranda, additional, Toledo, Marisol, additional, Toma, Takeshi, additional, Tomazello Filho, Mario, additional, Valdez Hernández, Juan Ignacio, additional, Verbesselt, Jan, additional, Vieira, Simone Aparecida, additional, Vincent, Grégoire, additional, Volkmer de Castilho, Carolina, additional, Volland, Franziska, additional, Worbes, Martin, additional, Zanon, Magda Lea Bolzan, additional, and Aragão, Luiz E. O. C., additional

Published
2016
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28. Supplementary material to "Climate seasonality limits carbon assimilation and storage in tropical forests"

Author

Wagner, Fabien H., primary, Hérault, Bruno, additional, Bonal, Damien, additional, Stahl, Clément, additional, Anderson, Liana O., additional, Baker, Timothy R., additional, Becker, Gabriel Sebastian, additional, Beeckman, Hans, additional, Boanerges Souza, Danilo, additional, Botosso, Paulo Cesar, additional, Bowman, David M. J. S., additional, Bräuning, Achim, additional, Brede, Benjamin, additional, Brown, Foster Irving, additional, Camarero, Jesus Julio, additional, Camargo, Plínio Barbosa, additional, Cardoso, Fernanda C. G., additional, Carvalho, Fabrício Alvim, additional, Castro, Wendeson, additional, Chagas, Rubens Koloski, additional, Chave, Jérome, additional, Chidumayo, Emmanuel N., additional, Clark, Deborah A, additional, Costa, Flavia Regina Capellotto, additional, Couralet, Camille, additional, da Silva Mauricio, Paulo Henrique, additional, Dalitz, Helmut, additional, de Castro, Vinicius Resende, additional, de Freitas Milani, Jaçanan Eloisa, additional, de Oliveira, Edilson Consuelo, additional, de Souza Arruda, Luciano, additional, Devineau, Jean-Louis, additional, Drew, David M., additional, Dünisch, Oliver, additional, Durigan, Giselda, additional, Elifuraha, Elisha, additional, Fedele, Marcio, additional, Ferreira Fedele, Ligia, additional, Figueiredo Filho, Afonso, additional, Finger, César Augusto Guimarães, additional, Franco, Augusto César, additional, Freitas Júnior, João Lima, additional, Galvão, Franklin, additional, Gebrekirstos, Aster, additional, Gliniars, Robert, additional, Graça, Paulo Maurício Lima de Alencastro, additional, Griffiths, Anthony D., additional, Grogan, James, additional, Guan, Kaiyu, additional, Homeier, Jürgen, additional, Kanieski, Maria Raquel, additional, Kho, Lip Khoon, additional, Koenig, Jennifer, additional, Kohler, Sintia Valerio, additional, Krepkowski, Julia, additional, Lemos-Filho, José Pires, additional, Lieberman, Diana, additional, Lieberman, Milton Eugene, additional, Lisi, Claudio Sergio, additional, Longhi Santos, Tomaz, additional, López Ayala, José Luis, additional, Maeda, Eduardo Eijji, additional, Malhi, Yadvinder, additional, Maria, Vivian R. B., additional, Marques, Marcia C. M., additional, Marques, Renato, additional, Maza Chamba, Hector Maza, additional, Mbwambo, Lawrence, additional, Melgaço, Karina Liana Lisboa, additional, Mendivelso, Hooz Angela, additional, Murphy, Brett P., additional, O'Brien, Joseph J., additional, Oberbauer, Steven F., additional, Okada, Naoki, additional, Pélissier, Raphaël, additional, Prior, Lynda D., additional, Roig, Fidel Alejandro, additional, Ross, Michael, additional, Rossatto, Davi Rodrigo, additional, Rossi, Vivien, additional, Rowland, Lucy, additional, Rutishauser, Ervan, additional, Santana, Hellen, additional, Schulze, Mark, additional, Selhorst, Diogo, additional, Silva, Williamar Rodrigues, additional, Silveira, Marcos, additional, Spannl, Susanne, additional, Swaine, Michael D., additional, Toledo, José Julio, additional, Toledo, Marcos Miranda, additional, Toledo, Marisol, additional, Toma, Takeshi, additional, Tomazello Filho, Mario, additional, Valdez Hernández, Juan Ignacio, additional, Verbesselt, Jan, additional, Vieira, Simone Aparecida, additional, Vincent, Grégoire, additional, Volkmer de Castilho, Carolina, additional, Volland, Franziska, additional, Worbes, Martin, additional, Zanon, Magda Lea Bolzan, additional, and Aragão, Luiz E. O. C., additional

Published
2016
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29. Climate seasonality limits carbon assimilation and storage in tropical forests

Author

Wagner, Fabien H., primary, Hérault, Bruno, additional, Bonal, Damien, additional, Stahl, Clément, additional, Anderson, Liana O., additional, Baker, Timothy R., additional, Becker, Gabriel Sebastian, additional, Beeckman, Hans, additional, Boanerges Souza, Danilo, additional, Botosso, Paulo Cesar, additional, Bowman, David M. J. S., additional, Bräuning, Achim, additional, Brede, Benjamin, additional, Brown, Foster Irving, additional, Camarero, Jesus Julio, additional, Camargo, Plínio Barbosa, additional, Cardoso, Fernanda C. G., additional, Carvalho, Fabrício Alvim, additional, Castro, Wendeson, additional, Chagas, Rubens Koloski, additional, Chave, Jérome, additional, Chidumayo, Emmanuel N., additional, Clark, Deborah A, additional, Costa, Flavia Regina Capellotto, additional, Couralet, Camille, additional, da Silva Mauricio, Paulo Henrique, additional, Dalitz, Helmut, additional, de Castro, Vinicius Resende, additional, de Freitas Milani, Jaçanan Eloisa, additional, de Oliveira, Edilson Consuelo, additional, de Souza Arruda, Luciano, additional, Devineau, Jean-Louis, additional, Drew, David M., additional, Dünisch, Oliver, additional, Durigan, Giselda, additional, Elifuraha, Elisha, additional, Fedele, Marcio, additional, Ferreira Fedele, Ligia, additional, Figueiredo Filho, Afonso, additional, Finger, César Augusto Guimarães, additional, Franco, Augusto César, additional, Freitas Júnior, João Lima, additional, Galvão, Franklin, additional, Gebrekirstos, Aster, additional, Gliniars, Robert, additional, Graça, Paulo Maurício Lima de Alencastro, additional, Griffiths, Anthony D., additional, Grogan, James, additional, Guan, Kaiyu, additional, Homeier, Jürgen, additional, Kanieski, Maria Raquel, additional, Kho, Lip Khoon, additional, Koenig, Jennifer, additional, Kohler, Sintia Valerio, additional, Krepkowski, Julia, additional, Lemos-Filho, José Pires, additional, Lieberman, Diana, additional, Lieberman, Milton Eugene, additional, Lisi, Claudio Sergio, additional, Longhi Santos, Tomaz, additional, López Ayala, José Luis, additional, Maeda, Eduardo Eijji, additional, Malhi, Yadvinder, additional, Maria, Vivian R. B., additional, Marques, Marcia C. M., additional, Marques, Renato, additional, Maza Chamba, Hector Maza, additional, Mbwambo, Lawrence, additional, Melgaço, Karina Liana Lisboa, additional, Mendivelso, Hooz Angela, additional, Murphy, Brett P., additional, O'Brien, Joseph J., additional, Oberbauer, Steven F., additional, Okada, Naoki, additional, Pélissier, Raphaël, additional, Prior, Lynda D., additional, Roig, Fidel Alejandro, additional, Ross, Michael, additional, Rossatto, Davi Rodrigo, additional, Rossi, Vivien, additional, Rowland, Lucy, additional, Rutishauser, Ervan, additional, Santana, Hellen, additional, Schulze, Mark, additional, Selhorst, Diogo, additional, Silva, Williamar Rodrigues, additional, Silveira, Marcos, additional, Spannl, Susanne, additional, Swaine, Michael D., additional, Toledo, José Julio, additional, Toledo, Marcos Miranda, additional, Toledo, Marisol, additional, Toma, Takeshi, additional, Tomazello Filho, Mario, additional, Valdez Hernández, Juan Ignacio, additional, Verbesselt, Jan, additional, Vieira, Simone Aparecida, additional, Vincent, Grégoire, additional, Volkmer de Castilho, Carolina, additional, Volland, Franziska, additional, Worbes, Martin, additional, Zanon, Magda Lea Bolzan, additional, and Aragão, Luiz E. O. C., additional

Published
2016
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31. Woody biomass production lags stem-girth increase by over one month in coniferous forests

Author

Cuny, Henri E., primary, Rathgeber, Cyrille B. K., additional, Frank, David, additional, Fonti, Patrick, additional, Mäkinen, Harri, additional, Prislan, Peter, additional, Rossi, Sergio, additional, del Castillo, Edurne Martinez, additional, Campelo, Filipe, additional, Vavrčík, Hanuš, additional, Camarero, Jesus Julio, additional, Bryukhanova, Marina V., additional, Jyske, Tuula, additional, Gričar, Jožica, additional, Gryc, Vladimír, additional, De Luis, Martin, additional, Vieira, Joana, additional, Čufar, Katarina, additional, Kirdyanov, Alexander V., additional, Oberhuber, Walter, additional, Treml, Vaclav, additional, Huang, Jian-Guo, additional, Li, Xiaoxia, additional, Swidrak, Irene, additional, Deslauriers, Annie, additional, Liang, Eryuan, additional, Nöjd, Pekka, additional, Gruber, Andreas, additional, Nabais, Cristina, additional, Morin, Hubert, additional, Krause, Cornelia, additional, King, Gregory, additional, and Fournier, Meriem, additional

Published
2015
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32. Assessing forest vulnerability to climate warming using a process-based model of tree growth: bad prospects for rear-edges.

Author

Sánchez‐Salguero, Raúl, Camarero, Jesus Julio, Gutiérrez, Emilia, González Rouco, Fidel, Gazol, Antonio, Sangüesa‐Barreda, Gabriel, Andreu‐Hayles, Laia, Linares, Juan Carlos, and Seftigen, Kristina

Subjects
*CLIMATE change, *TREE growth, *GLOBAL warming, *SILVER fir, *SCOTS pine
Abstract

Growth models can be used to assess forest vulnerability to climate warming. If global warming amplifies water deficit in drought-prone areas, tree populations located at the driest and southernmost distribution limits (rear-edges) should be particularly threatened. Here, we address these statements by analyzing and projecting growth responses to climate of three major tree species (silver fir, Abies alba; Scots pine, Pinus sylvestris; and mountain pine, Pinus uncinata) in mountainous areas of NE Spain. This region is subjected to Mediterranean continental conditions, it encompasses wide climatic, topographic and environmental gradients, and, more importantly, it includes rear-edges of the continuous distributions of these tree species. We used tree-ring width data from a network of 110 forests in combination with the process-based Vaganov-Shashkin-Lite growth model and climate-growth analyses to forecast changes in tree growth during the 21st century. Climatic projections were based on four ensembles CO2 emission scenarios. Warm and dry conditions during the growing season constrain silver fir and Scots pine growth, particularly at the species rear-edge. By contrast, growth of high-elevation mountain pine forests is enhanced by climate warming. The emission scenario ( RCP 8.5) corresponding to the most pronounced warming (+1.4 to 4.8 °C) forecasted mean growth reductions of −10.7% and −16.4% in silver fir and Scots pine, respectively, after 2050. This indicates that rising temperatures could amplify drought stress and thus constrain the growth of silver fir and Scots pine rear-edge populations growing at xeric sites. Contrastingly, mountain pine growth is expected to increase by +12.5% due to a longer and warmer growing season. The projections of growth reduction in silver fir and Scots pine portend dieback and a contraction of their species distribution areas through potential local extinctions of the most vulnerable driest rear-edge stands. Our modeling approach provides accessible tools to evaluate forest vulnerability to warmer conditions. [ABSTRACT FROM AUTHOR]

Published
2017
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34. Early-Warning Signals of Individual Tree Mortality Based on Annual Radial Growth.

Author

Cailleret M, Dakos V, Jansen S, Robert EMR, Aakala T, Amoroso MM, Antos JA, Bigler C, Bugmann H, Caccianaga M, Camarero JJ, Cherubini P, Coyea MR, Čufar K, Das AJ, Davi H, Gea-Izquierdo G, Gillner S, Haavik LJ, Hartmann H, Hereş AM, Hultine KR, Janda P, Kane JM, Kharuk VI, Kitzberger T, Klein T, Levanic T, Linares JC, Lombardi F, Mäkinen H, Mészáros I, Metsaranta JM, Oberhuber W, Papadopoulos A, Petritan AM, Rohner B, Sangüesa-Barreda G, Smith JM, Stan AB, Stojanovic DB, Suarez ML, Svoboda M, Trotsiuk V, Villalba R, Westwood AR, Wyckoff PH, and Martínez-Vilalta J

Abstract

Tree mortality is a key driver of forest dynamics and its occurrence is projected to increase in the future due to climate change. Despite recent advances in our understanding of the physiological mechanisms leading to death, we still lack robust indicators of mortality risk that could be applied at the individual tree scale. Here, we build on a previous contribution exploring the differences in growth level between trees that died and survived a given mortality event to assess whether changes in temporal autocorrelation, variance, and synchrony in time-series of annual radial growth data can be used as early warning signals of mortality risk. Taking advantage of a unique global ring-width database of 3065 dead trees and 4389 living trees growing together at 198 sites (belonging to 36 gymnosperm and angiosperm species), we analyzed temporal changes in autocorrelation, variance, and synchrony before tree death (diachronic analysis), and also compared these metrics between trees that died and trees that survived a given mortality event (synchronic analysis). Changes in autocorrelation were a poor indicator of mortality risk. However, we found a gradual increase in inter-annual growth variability and a decrease in growth synchrony in the last ∼20 years before mortality of gymnosperms, irrespective of the cause of mortality. These changes could be associated with drought-induced alterations in carbon economy and allocation patterns. In angiosperms, we did not find any consistent changes in any metric. Such lack of any signal might be explained by the relatively high capacity of angiosperms to recover after a stress-induced growth decline. Our analysis provides a robust method for estimating early-warning signals of tree mortality based on annual growth data. In addition to the frequently reported decrease in growth rates, an increase in inter-annual growth variability and a decrease in growth synchrony may be powerful predictors of gymnosperm mortality risk, but not necessarily so for angiosperms.

Published
2019
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