Biased-corrected richness estimates for the Amazonian tree flora

Unidad de excelencia María de Maeztu CEX2019-000940-M Amazonian forests are extraordinarily diverse, but the estimated species richness is very much debated. Here, we apply an ensemble of parametric estimators and a novel technique that includes conspecific spatial aggregation to an extended databas...

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Hauptverfasser:	ter Steege, Hans, Prado, Paulo I, de Andrade Lima Filho, Diogenes, Cárdenas, Dairon, Wittmann, Florian, Martins, Maria Pires, Molino, Jean-François, Pitman, Nigel, Monteagudo Mendoza, Abel, Garcia Luize, Bruno, Núñez Vargas, Percy, Silva, Thiago Sanna Freire, de Leão Novo, Evlyn Márcia Moraes, Reis, Neidiane Farias Costa, Terborgh, John, Honorio Coronado, Euridice N, Duque, Alvaro, Costa, Flávia R. C, Castaño Arboleda, Nicolás, Marimon, Beatriz S, Mostacedo, Bonifacio, Engel, Julien, Petronelli, Pascal, Simon, Marcelo Fragomeni, Andrade, Ana, Sousa, Thaiane R, Camargo, José Luis, Schietti, Juliana, Nascimento, Henrique Eduardo Mendonça, de Sousa Farias, Emanuelle, Aymard, Gerardo A. C, Vieira, Ima Célia Guimarães, Stevenson, Pablo R, Duivenvoorden, Joost F, Mogollón, Hugo F, Lozada, José Rafael, Comiskey, James A, Dávila Cardozo, Nállarett Marina, García-Villacorta, Roosevelt, Alonso, Alfonso, Dallmeier, Francisco, de Souza, Fernanda Coelho, Gribel, Rogerio, Arroyo, Luzmila, Pansonato, Marcelo Petratti, Fine, Paul V. A, Villa, Boris, Peñuela Mora, Maria Cristina, Jimenez, Eliana M, Licona, Juan Carlos, Cerón, Carlos, Thomas, Raquel, Stropp, Juliana, Paredes, Marcos Ríos, Daly, Doug, Peres, Carlos A, Klitgaard, Bente, Di Fiore, Anthony, von Hildebrand, Patricio, Hilário, Renato Richard, Phillips, Juan Fernando, Noronha, Janaína Costa, Gonzales, George Pepe Gallardo, de Jesus Rodrigues, Domingos, Junqueira, André B, Doza, Hilda Paulette Dávila, Zent, Stanford, Barbosa, Edelcilio Marques, de Matos Bonates, Luiz Carlos, Barbosa, Flávia Rodrigues, Vela, César I. A, Rudas, Agustín, Albuquerque, Bianca Weiss, Carrero Márquez, Yrma Andreina, van der Heijden, Geertje, Young, Kenneth R, Tirado, Milton, Correa Gómez, Diego Felipe, Sierra, Rodrigo, Rocha, Maira, Vilanova Torre, Emilio, Wang, Ophelia, Oliveira, Alexandre, Vriesendorp, Corine, Ramirez-Angulo, Hirma, Holmgren, Milena, Nascimento, Marcelo Trindade, Mesones, Italo, Baider, Cláudia, Mendoza, Casimiro, Zagt, Roderick, Villarroel, Daniel, Linares-Palomino, Reynaldo, Farfan-Rios, William, Balslev, Henrik, Ramirez Arevalo, Freddy, Hernandez, Lionel, de Oliveira, Edmar Almeida, Levesley, Aurora, Pickavance, Georgia
Format:	Artikel
Sprache:	eng
Schlagworte:	Community ecology Theoretical ecology
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Zusammenfassung:	Unidad de excelencia María de Maeztu CEX2019-000940-M Amazonian forests are extraordinarily diverse, but the estimated species richness is very much debated. Here, we apply an ensemble of parametric estimators and a novel technique that includes conspecific spatial aggregation to an extended database of forest plots with up-to-date taxonomy. We show that the species abundance distribution of Amazonia is best approximated by a logseries with aggregated individuals, where aggregation increases with rarity. By averaging several methods to estimate total richness, we confirm that over 15,000 tree species are expected to occur in Amazonia. We also show that using ten times the number of plots would result in an increase to just ~50% of those 15,000 estimated species. To get a more complete sample of all tree species, rigorous field campaigns may be needed but the number of trees in Amazonia will remain an estimate for years to come.