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Title: Compositional response of Amazon forests to climate change
Authors: 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
Keywords: Bioclimatology
Climate Change
Lowland Environment
Temporal Variation
Tropical Forest
Carbon Dioxide
Climate Change
Tropic Climate
Carbon Dioxide
Climate Change
Tropical Climate
Issue Date: 2019
metadata.dc.publisher.journal: Global Change Biology
metadata.dc.relation.ispartof: 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.
metadata.dc.identifier.doi: 10.1111/gcb.14413
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