Amazon tree dominance across forest strata

2021-06

Draper, Frederick C

Costa, Flavia R C

Arellano, Gabriel

Phillips, Oliver L

Duque, Alvaro

Macía, Manuel J

ter Steege, Hans

Asner, Gregory P

Berenguer, Erika

Schietti, Juliana

Socolar, Jacob B

Coelho de Souza, Fernanda

Dexter, Kyle G

Jørgensen, Peter M

Tello, J Sebastian

Magnusson, William E

Baker, Timothy R

Castilho, Carolina V

Monteagudo-Mendoza, Abel

Fine, Paul V A

Ruokolainen, Kalle

Coronado, Euridice N Honorio

Aymard, Gerardo

Dávila, Nállarett

Sánchez Sáenz, Mauricio

Rios Paredes, Marcos A

Engel, Julien

Fortunel, Claire

Paine, C E Timothy

Goret, Jean-Yves

Dourdain, Aurelie

Petronelli, Pascal

Allie, Elodie

Guevara Andino, Juan E

Brienen, Roel J W

Pérez, Leslie Cayola

Manzatto, Ângelo G

Paniagua Zambrana, Narel Y

Molino, Jean-François

Sabatier, Daniel

Chave, Jerôme

Fauset, Sophie

Garcia Villacorta, Roosevelt

Réjou-Méchain, Maxime

Berry, Paul E

Melgaço, Karina

Feldpausch, Ted R

Valderamma Sandoval, Elvis

Vasquez Martinez, Rodolfo

Mesones, Italo

Junqueira, André B

Roucoux, Katherine H

de Toledo, José J

Andrade, Ana C

Camargo, José Luís

del Aguila Pasquel, Jhon

Santana, Flávia D

Laurance, William F

Laurance, Susan G

Lovejoy, Thomas E

Comiskey, James A

Galbraith, David R

Kalamandeen, Michelle

Navarro Aguilar, Gilberto E

Vega Arenas, Jim

Amasifuen Guerra, Carlos A

Flores, Manuel

Flores Llampazo, Gerardo

Torres Montenegro, Luis A

Zarate Gomez, Ricardo

Pansonato, Marcelo P

Moscoso, Victor Chama

Vleminckx, Jason

Valverde Barrantes, Oscar J

Duivenvoorden, Joost F

de Sousa, Sidney Araújo

Arroyo, Luzmila

Perdiz, Ricardo O

Soares Cravo, Jessica

Marimon, Beatriz S

Marimon Junior, Ben Hur

Antunes Carvalho, Fernanda

Damasco, Gabriel

Disney, Mathias

Salgado Vital, Marcos

Stevenson Diaz, Pablo R

Vicentini, Alberto

Nascimento, Henrique

Higuchi, Niro

Van Andel, Tinde

Malhi, Yadvinder

Cerruto Ribeiro, Sabina

Terborgh, John W

Thomas, Raquel S

Dallmeier, Francisco

Prieto, Adriana

Hilário, Renato R

Salomão, Rafael P

da Costa Silva, Richarlly

Casas, Luisa F

Guimarães Vieira, Ima C

Araujo-Murakami, Alejandro

Ramirez Arevalo, Fredy

Ramírez-Angulo, Hirma

Vilanova Torre, Emilio

Peñuela, Maria C

Killeen, Timothy J

Pardo, Guido

Jimenez-Rojas, Eliana

Castro, Wenderson

Galiano Cabrera, Darcy

Pipoly, John

de Sousa, Thaiane Rodrigues

Silvera, Marcos

Vos, Vincent

Neill, David

Vargas, Percy Núñez

Vela, Dilys M

Aragão, Luiz E O C

Umetsu, Ricardo Keichi

Sierra, Rodrigo

Wang, Ophelia

Young, Kenneth R

Prestes, Nayane C C S

Massi, Klécia G

Huaymacari, José Reyna

Parada Gutierrez, Germaine A

Aldana, Ana M

Alexiades, Miguel N

Baccaro, Fabrício

Céron, Carlos

Esquivel Muelbert, Adriane

Grandez Rios, Julio M

Lima, Antonio S

Lloyd, Jonathan L

Pitman, Nigel C A

Valenzuela Gamarra, Luis

Cordova Oroche, Cesar J

Fuentes, Alfredo F

Palacios, Walter

Patiño, Sandra

Torres-Lezama, Armando

Baraloto, Christopher

Journal Article

en

Publication

Nature Publishing Group

United Kingdom

10.1038/s41559-021-01418-y

une:1959.11/38777

The 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.

link

Nature Ecology & Evolution, 5(6), p. 757-767

2397-334X

33795854

757

767