Produção Nacional
Revisado por pares
Amazon tree dominance across forest strata
2021; Nature Portfolio; Volume: 5; Issue: 6 Linguagem: Inglês
10.1038/s41559-021-01418-y
ISSN2397-334X
AutoresFreddie C. Draper, Flávia R. C. Costa, Gabriel Arellano, Oliver L. Phillips, Álvaro Duque, Manuel J. Macía, Hans ter Steege, Gregory P. Asner, Érika Berenguer, Juliana Schietti, Jacob B. Socolar, Fernanda Coelho de Souza, Kyle G. Dexter, Peter M. Jørgensen, J. Sebastián Tello, William E. Magnusson, Timothy R. Baker, Carolina V. Castilho, Abel Monteagudo‐Mendoza, Paul V. A. Fine, Kalle Ruokolainen, Eurídice N. Honorio Coronado, Gerardo A. Aymard C., Nállarett Dávila, Mauricio Sánchez, Marcos Ríos Paredes, Julien Engel, Claire Fortunel, C. E. Timothy Paine, Jean-Yves Goret, Aurélie Dourdain, Pascal Petronelli, Élodie Allié, Juan Ernesto Guevara, Roel Brienen, Leslie Cayola Pérez, Ângelo Gilberto Manzatto, Narel Y. Paniagua-Zambrana, Jean‐François Molino, Daniel Sabatier, Jérôme Chave, Sophie Fauset, Roosevelt García Villacorta, Maxime Réjou‐Méchain, Paul E. Berry, Karina Melgaço, Ted R. Feldpausch, Elvis Valderamma Sandoval, Rodolfo Vásquez, Italo Mesones, André Braga Junqueira, Katherine H. Roucoux, José Júlio de Toledo, Ana Andrade, José Luís Camargo, Jhon del Águila Pasquel, Flávia Delgado Santana, William F. Laurance, Susan G. Laurance, Thomas Ε. Lovejoy, James A. Comiskey, David Galbraith, Michelle Kalamandeen, Gilberto E. Navarro Aguilar, Jim Vega Arenas, Carlos A. Amasifuén Guerra, Manuel Flores, Gerardo Flores Llampazo, Luis Torres Montenegro, Ricardo Zárate Gómez, Marcelo Petratti Pansonato, Víctor Chama Moscoso, Jason Vleminckx, Oscar J. Valverde Barrantes, Joost F. Duivenvoorden, Sidney Araújo de Sousa, Luzmila Arroyo, Ricardo de Oliveira Perdiz, Jessica Soares Cravo, Beatriz Schwantes Marimon, Ben Hur Marimon, Fernanda Antunes Carvalho, Gabriel Damasco, Mathias Disney, Marcos Salgado Vital, Pablo R. Stevenson, Alberto Vicentini, Henrique Eduardo Mendonça Nascimento, Níro Higuchi, Tinde van Andel, Yadvinder Malhi, Sabina Cerruto Ribeiro, John Terborgh, Raquel S. Thomas, Francisco Dallmeier, Adriana Prieto, Renato Richard Hilário, Rafael P. Salomão, Richarlly da Costa Silva, Luisa Fernanda Casas, Ima Célia Guimarães Vieira, Alejandro Araujo‐Murakami, Fredy Ramírez, Hirma Ramírez‐Angulo, Emilio Vilanova, María Cristina Peñuela Mora, Timothy J. Killeen, Guido Pardo, E. Jiménez, Wendeson Castro, Darcy Galiano Cabrera, John Pipoly, Thaiane R. Sousa, Marcos Silvera, Vincent Antoine Vos, David Neill, Percy Núñez Vargas, Dilys M. Vela Díaz, Luiz E. O. C. Aragão, Ricardo Keichi Umetsu, Rodrigo Sierra, Ophelia Wang, Kenneth R. Young, Nayane Cristina Candida dos Santos Prestes, Klécia Gili Massi, José Reyna Huaymacari, Germaine Alexander Parada Gutierrez, Ana M. Aldana, Miguel N. Alexiades, Fabrício Beggiato Baccaro, Carlos Cerón, Adriane Esquivel‐Muelbert, Julio M. Grandez Rios, Antonio S. Lima, Jon Lloyd, Nigel C. A. Pitman, Luis Valenzuela Gamarra, Jimmy Cesar Cordova Oroche, Alfredo F. Fuentes, Walter A. Palacios, Sandra Patiño, Armando Torres‐Lezama, Christopher Baraloto,
Tópico(s)Plant Diversity and Evolution
ResumoThe forests of Amazonia are among the most biodiverse plant communities on Earth. Given the immediate threats posed by climate and land-use change, an improved understanding of how this extraordinary biodiversity is spatially organized is urgently required to develop effective conservation strategies. Most Amazonian tree species are extremely rare but a few are common across the region. Indeed, just 227 'hyperdominant' species account for >50% of all individuals >10 cm diameter at 1.3 m in height. Yet, the degree to which the phenomenon of hyperdominance is sensitive to tree size, the extent to which the composition of dominant species changes with size class and how evolutionary history constrains tree hyperdominance, all remain unknown. Here, we use a large floristic dataset to show that, while hyperdominance is a universal phenomenon across forest strata, different species dominate the forest understory, midstory and canopy. We further find that, although species belonging to a range of phylogenetically dispersed lineages have become hyperdominant in small size classes, hyperdominants in large size classes are restricted to a few lineages. Our results demonstrate that it is essential to consider all forest strata to understand regional patterns of dominance and composition in Amazonia. More generally, through the lens of 654 hyperdominant species, we outline a tractable pathway for understanding the functioning of half of Amazonian forests across vertical strata and geographical locations. Most Amazon tree species are rare but a small proportion are common across the region. The authors show that different species are hyperdominant in different size classes and that hyperdominance is more phylogenetically restricted for larger canopy trees than for smaller understory ones.
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