Sensitivity of South American tropical forests to an extreme climate anomaly

Bennett, Amy C., Rodrigues de Sousa, Thaiane, Monteagudo-Mendoza, Abel, Esquivel-Muelbert, Adriane, Morandi, Paulo S., Coelho de Souza, Fernanda, Castro, Wendeson, Duque, Luisa Fernanda, Flores Llampazo, Gerardo, Manoel dos Santos, Rubens, Ramos, Eliana, Vilanova Torre, Emilio, Alvarez-Davila, Esteban, Baker, Timothy R., Costa, Flávia R. C., Lewis, Simon L., Marimon, Beatriz S., Schietti, Juliana, Burban, Benoît, Berenguer, Erika, Araujo-Murakami, Alejandro, Restrepo Correa, Zorayda, Lopez, Wilmar, Delgado Santana, Flávia, Viscarra, Laura Jessica, Elias, Fernando, Vasquez Martinez, Rodolfo, Marimon-Junior, Ben Hur, Galbraith, David, Sullivan, Martin J. P., Emilio, Thaise, Prestes, Nayane C. C. S., Barlow, Jos, Alencar Fagundes, Nathalle Cristine, Almeida de Oliveira, Edmar, Alvarez Loayza, Patricia, Alves, Luciana F., Aparecida Vieira, Simone, Andrade Maia, Vinícius, Aragão, Luiz E. O. C., Arets, Eric J. M. M., Arroyo, Luzmila, Bánki, Olaf, Baraloto, Christopher, Barbosa Camargo, Plínio, Barroso, Jorcely, Bento da Silva, Wilder, Bonal, Damien, Borges Miranda Santos, Alisson, Brienen, Roel J. W., Brown, Foster, Castilho, Carolina V., Cerruto Ribeiro, Sabina, Chama Moscoso, Victor, Chavez, Ezequiel, Comiskey, James A., Cornejo Valverde, Fernando, Dávila Cardozo, Nállarett, de Aguiar-Campos, Natália, de Oliveira Melo, Lia, del Aguila Pasquel, Jhon, Derroire, Géraldine, Disney, Mathias, do Socorro, Maria, Dourdain, Aurélie, Feldpausch, Ted R., Ferreira, Joice, Forni Martins, Valeria, Gardner, Toby, Gloor, Emanuel, Gutierrez Sibauty, Gloria, Guillen, René, Hase, Eduardo, Hérault, Bruno, Honorio Coronado, Eurídice N., Huaraca Huasco, Walter, Janovec, John P., Jimenez-Rojas, Eliana, Joly, Carlos, Kalamandeen, Michelle, Killeen, Timothy J., Lais Farrapo, Camila, Levesley, Aurora, Lizon Romano, Leon, Lopez Gonzalez, Gabriela, Maës dos Santos, Flavio Antonio, Magnusson, William E., Malhi, Yadvinder, Matias de Almeida Reis, Simone, Melgaço, Karina, Melo Cruz, Omar A., Mendoza Polo, Irina, Montañez, Tatiana, Morel, Jean Daniel, Núñez Vargas, M Percy, Oliveira de Araújo, Raimunda, Pallqui Camacho, Nadir C., Parada Gutierrez, Alexander, Pennington, Toby, Pickavance, Georgia C., Pipoly, John, Pitman, Nigel C. A., Quesada, Carlos, Ramirez Arevalo, Freddy, Ramírez‐Angulo, Hirma, Flora Ramos, Rafael, Richardson, James E., Rodrigo de Souza, Cléber, Roopsind, Anand, Schwartz, Gustavo, Silva, Richarlly C., Silva Espejo, Javier, Silveira, Marcos, Singh, James, Soto Shareva, Yhan, Steininger, Marc, Stropp, Juliana, Talbot, Joey, ter Steege, Hans, Terborgh, John, Thomas, Raquel, Valenzuela Gamarra, Luis, van der Heijden, Geertje, van der Hout, Peter, Zagt, Roderick, and Phillips, Oliver L. (2023) Sensitivity of South American tropical forests to an extreme climate anomaly. Nature Climate Change, 13. pp. 967-974.

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The tropical forest carbon sink is known to be drought sensitive, but it is unclear which forests are the most vulnerable to extreme events. Forests with hotter and drier baseline conditions may be protected by prior adaptation, or more vulnerable because they operate closer to physiological limits. Here we report that forests in drier South American climates experienced the greatest impacts of the 2015–2016 El Niño, indicating greater vulnerability to extreme temperatures and drought. The long-term, ground-measured tree-by-tree responses of 123 forest plots across tropical South America show that the biomass carbon sink ceased during the event with carbon balance becoming indistinguishable from zero (−0.02 ± 0.37 Mg C ha−1 per year). However, intact tropical South American forests overall were no more sensitive to the extreme 2015–2016 El Niño than to previous less intense events, remaining a key defence against climate change as long as they are protected.

Item ID: 82487
Item Type: Article (Research - C1)
ISSN: 1758-6798
Copyright Information: © The Author(s) 2023. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons. org/licenses/by/4.0/.
Date Deposited: 19 Mar 2024 02:10
FoR Codes: 41 ENVIRONMENTAL SCIENCES > 4101 Climate change impacts and adaptation > 410102 Ecological impacts of climate change and ecological adaptation @ 100%
SEO Codes: 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280111 Expanding knowledge in the environmental sciences @ 100%
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