- 1Forest Ecology and Forest Management group, Wageningen University , Wageningen, the Netherlands (pieter.zuidema@wur.nl)
- 2Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ, USA (trouet@arizona.edu)
- 3School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, USA (babst@arizona.edu)
- 4Department of Plant Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil (peterg@unicamp.br)
- 5Department of Forestry and Environmental Science, Shahjalal University of Science and Technology, Bangladesh (mizanfes@yahoo.com)
- *A full list of authors appears at the end of the abstract
One of the most pervasive drought impacts on tropical forests is increased tree mortality. While satellite imagery can detect large-scale drought-induced tree mortality events, it cannot detect individual tree mortality that is scattered in space and lagged in time. To estimate the latter mortality drought-induced growth anomalies from tree-ring data can be combined with plot-based growth-mortality associations. Here we combine data from 158 globally distributed tree-ring chronologies with plot-based growth-mortality associations to present a first pantropical estimate of drought-associated mortality.
For the 10% driest years, our pantropical estimate of angiosperm lowland tree mortality is 0.1% y-1 (confidence interval: 0.08-0.15%) on top of 1% y-1 background mortality. This value is slightly higher for the 5% driest years.
Direct empirical associations between growth and mortality for tree-ring forming species are needed to refine this estimate. Tree mortality likely increases under ongoing climate change, leading to reduced carbon residence time in tropical forests.
Abrham ABIYU, Rodolfo ACUÑA-SOTO,, Eduardo ADENESKY-FILHO, Raquel ALFARO-SÁNCHEZ,, Claudio Roberto ANHOLETTO JUNIOR, José Roberto Vieira ARAGÃO, Gabriel ASSIS-PEREIRA,, Claudia C. ASTUDILLO-SÁNCHEZ, Ana Carolina BARBOSA, Giovanna BATTIPAGLIA, Hans BEECKMAN, Paulo Cesar BOTOSSO, Nils BOURLAND, Achim BRÄUNING, Roel BRIENEN, Matthew BROOKHOUSE, Supaporn BUAJAN, Brendan M. BUCKLEY, J. Julio CAMARERO, Artemio CARRILLO-PARRA, Gregório CECCANTINI, Librado R. CENTENO-ERGUERA, Julián CERANO-PAREDES, Wirong CHANTHORN, Ya-Jun CHEN, Bruno Barçante Ladvocat CINTRA,, Eladio Heriberto CORNEJO-OVIEDO, Otoniel CORTÉS-CORTÉS, Clayane Matos COSTA, Camille COURALET, Doris Bianca CRISPÍN-DE-LA-CRUZ,, Rosanne D'ARRIGO, Diego A. DAVID, Maaike DE RIDDER, Jorge Ignacio DEL VALLE, Mário DOBNER JR, Jean-Louis DOUCET, Oliver DÜNISCH, Brian J. ENQUIST,, Karin ESEMANN-QUADROS,, Gerardo ESQUIVEL-ARRIAGA, Ze-Xin FAN, Adeline FAYOLLE,, Tatiele Anete Bergamo FENILLI, M. Eugenia FERRERO,, Esther FICHTLER, Patrick M. FINNEGAN, Claudia FONTANA, Kainana S. FRANCISCO, Pei-Li FU, Franklin GALVÃO, Aster GEBREKIRSTOS, Jorge A. GIRALDO, Emanuel GLOOR, Milena GODOY-VEIGA, Daniela GRANATO-SOUZA, Anthony GUERRA, Kristof HANECA, Grant Logan HARLEY, Ingo HEINRICH,, Gerhard HELLE, Bruna HORNINK,, Wannes HUBAU, Janet G. INGA, Mahmuda ISLAM,, Yu-mei JIANG, Mark KAIB, Zakia Hassan KHAMISI, Marcin KOPROWSKI,, Eva LAYME, A. Joshua LEFFLER, Gauthier LIGOT, Claudio Sergio LISI, Neil J. LOADER, Francisco de Almeida LOBO, Giuliano Maselli LOCOSSELLI,, Tomaz LONGHI-SANTOS, Lidio LOPEZ, María I. LÓPEZ-HERNÁNDEZ, José Luís Penetra Cerveira LOUSADA, Rubén D. MANZANEDO,, Amanda K. MARCON, Justin T. MAXWELL, Omar N. MENDOZA-VILLA, Ítallo Romany Nunes MENEZES,, Mulugeta MOKRIA,, Valdinez Ribeiro MONTÓIA, Eddy MOORS,, Miyer MORENO, Miguel Angel MUÑIZ-CASTRO, Cristina NABAIS, Anuttara NATHALANG, Justine NGOMA, Francisco de Carvalho NOGUEIRA JR., Juliano Morales OLIVEIRA,, Gabriela Morais OLMEDO, Daigard Ricardo ORTEGA-RODRIGUEZ, Carmen Eugenia Rodríguez ORTÍZ, Mariana Alves PAGOTTO, Shankar PANTHI, Kathelyn PAREDES-VILLANUEVA,, Gonzalo PÉREZ-DE-LIS, Laura Patricia PONCE CALDERÓN, Leif Armando PORTAL-CAHUANA,, Darwin Alexander PUCHA-COFREP, Nathsuda PUMIJUMNONG, Paulo QUADRI, Jorge Andrés RAMÍREZ, Edilson Jimmy REQUENA-ROJAS, Judith REYES-FLORES, Adauto de Souza RIBEIRO, Iain ROBERTSON, Fidel Alejandro ROIG,, José Guilherme ROQUETTE, Ernesto Alonso RUBIO-CAMACHO, Raúl SÁNCHEZ-SALGUERO, Ute SASS-KLAASSEN,, Jochen SCHÖNGART, Marcelo Callegari SCIPIONI, Paul R. SHEPPARD, Lucas C.R. SILVA, Franziska SLOTTA, Leroy SORIA-DÍAZ, Luciana K.V.S. SOUSA, James H. SPEER, Matthew D. THERRELL, Ginette TICSE-OTAROLA,, Mario TOMAZELLO-FILHO, Max C.A. TORBENSON, Pantana TOR-NGERN,, Ramzi TOUCHAN, Jan VAN DEN BULCKE, Lorenzo VÁZQUEZ-SELEM, Adín H. VELÁZQUEZ-PÉREZ, Alejandro VENEGAS-GONZÁLEZ, Ricardo VILLALBA, Jose VILLANUEVA-DIAZ, Mart VLAM, George VOURLITIS, Christian WEHENKEL, Tommy WILS,, Erika S. ZAVALETA, Eshetu Asfaw ZEWDU, Yong-Jiang ZHANG, Zhe-Kun ZHOU
How to cite: Zuidema, P., Babst, F., Groenendijk, P., Trouet, V., and Rahman, M. and the Tropical Tree-ring Network: Pantropical drought-induced tree mortality: a first estimate using tree-ring and plot data, EGU General Assembly 2025, Vienna, Austria, 27 Apr–2 May 2025, EGU25-9282, https://doi.org/10.5194/egusphere-egu25-9282, 2025.
