Título: | Compositional response of Amazon forests to climate change |
Autor: | Esquivel-Muelbert, Adriane Baker, Timothy R. Dexter, Kyle Graham Lewis, Simon L. Brienen, Roel J.W. Feldpausch, Ted R. Lloyd, Jon Monteagudo-Mendoza, Abel Arroyo, Luzmila P. Álvarez-Dávila, Esteban Higuchi, Niro Vásquez-Martínez, Rodolfo Vela, César I.A. Guimarães Vieira, Ima Cèlia Phillips, Oliver L. Marimon, Beatriz Schwantes Marimon Júnior, Ben Hur Silveira, Marcos Vilanova, Emilio Gloor, Manuel E. Malhi, Yadvinder Singh Chave, Jérôme Barlow, Jos Bonal, Damien Dávila, Nállarett Erwin, Terry L. Fauset, Sophie Hérault, Bruno Laurance, Susan G.W. Poorter, L. Qie, Lan Stahl, Clément Sullivan, Martin J.P. ter Steege, H. Vos, Vincent A. Zuidema, Pieter A. Almeida, Everton C. Oliveira, Edmar Almeida de Andrade, Ana C.S. Vieira, Simone Aparecida Aragao, L. E.O.C. Araujo-Murakami, Alejandro Arets, Eric J.M.M. Aymard-C, Gerardo A. Baraloto, Christopher Camargo, Plínio Barbosa de Barroso, Jorcely Bongers, Frans Boot, René G.A. Camargo, José Luís Campana Castro, Wendeson Moscoso, Victor Chama Comiskey, James A. Cornejo-Valverde, Fernando Costa, Antônio Carlos Lôla da Del Águila Pasquel, Jhon Di Fiore, Anthony Fernanda Duque, Luisa Elias, Fernando Engel, Julien Flores Llampazo, Gerardo Galbraith, David R. Herrera Fernández, Rafael Honorio Coronado, Euridice N. Hubau, Wannes Jimenez-Rojas, Eliana Lima, Adriano José Nogueira Umetsu, Ricardo Keichi Laurance, William F. Lopez-Gonzalez, Gabriela Lovejoy, Thomas E. Aurelio Melo Cruz, Omar Morandi, Paulo Sérgio Neill, David A. Núñez-Vargas, Percy Pallqui Camacho, Nadir Carolina Parada-Gutierrez, Alexander Pardo, Guido Peacock, Julie Pena-Claros, Marielos Peñuela, María Cristina Pétronelli, Pascal Pickavance, Georgia C. Pitman, Nigel C.A. Prieto, Adriana Quesada, Carlos Alberto Ramírez-Angulo, Hirma Réjou-Méchain, Maxime Restrepo-Correa, Zorayda Roopsind, Anand Rudas, Agustín Salomão, Rafael Paiva Silva, Natalino Silva-Espejo, Javier Eduardo Singh, James Stropp, Juliana Terborgh, John W. Thomas, Raquel S. Toledo, Marisol Torres-Lezama, Armando Valenzuela, Luis Van de Meer, Peter J. Van Der Heijden, Geertje M.F. van der Hout, Peter |
Palavras-chave: | Bioclimatology Climate Change Floristics Lowland Environment Niche Temporal Variation Tropical Forest Amazonia Carbon Dioxide Water Biodiversity Classification Climate Change Ecosystem Forest Physiology Season Tree Tropic Climate Biodiversity Carbon Dioxide Climate Change Ecosystem Forests Seasons Trees Tropical Climate Water |
Data do documento: | 2019 |
Revista: | Global Change Biology |
É parte de: | Volume 25, Número 1, Pags. 39-56 |
Abstract: | Most of the planet's diversity is concentrated in the tropics, which includes many regions undergoing rapid climate change. Yet, while climate-induced biodiversity changes are widely documented elsewhere, few studies have addressed this issue for lowland tropical ecosystems. Here we investigate whether the floristic and functional composition of intact lowland Amazonian forests have been changing by evaluating records from 106 long-term inventory plots spanning 30 years. We analyse three traits that have been hypothesized to respond to different environmental drivers (increase in moisture stress and atmospheric CO 2 concentrations): maximum tree size, biogeographic water-deficit affiliation and wood density. Tree communities have become increasingly dominated by large-statured taxa, but to date there has been no detectable change in mean wood density or water deficit affiliation at the community level, despite most forest plots having experienced an intensification of the dry season. However, among newly recruited trees, dry-affiliated genera have become more abundant, while the mortality of wet-affiliated genera has increased in those plots where the dry season has intensified most. Thus, a slow shift to a more dry-affiliated Amazonia is underway, with changes in compositional dynamics (recruits and mortality) consistent with climate-change drivers, but yet to significantly impact whole-community composition. The Amazon observational record suggests that the increase in atmospheric CO 2 is driving a shift within tree communities to large-statured species and that climate changes to date will impact forest composition, but long generation times of tropical trees mean that biodiversity change is lagging behind climate change. © 2018 The Authors. Global Change Biology Published by John Wiley & Sons Ltd. |
DOI: | 10.1111/gcb.14413 |
Aparece nas coleções: | Artigos
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