Fauset Sophie, Johnson Michelle O, Gloor Manuel, Baker Timothy R, Monteagudo M Abel, Brienen Roel J W, Feldpausch Ted R, Lopez-Gonzalez Gabriela, Malhi Yadvinder, ter Steege Hans, Pitman Nigel C A, Baraloto Christopher, Engel Julien, Pétronelli Pascal, Andrade Ana, Camargo José Luís C, Laurance Susan G W, Laurance William F, Chave Jerôme, Allie Elodie, Vargas Percy Núñez, Terborgh John W, Ruokolainen Kalle, Silveira Marcos, Aymard C Gerardo A, Arroyo Luzmila, Bonal Damien, Ramirez-Angulo Hirma, Araujo-Murakami Alejandro, Neill David, Hérault Bruno, Dourdain Aurélie, Torres-Lezama Armando, Marimon Beatriz S, Salomão Rafael P, Comiskey James A, Réjou-Méchain Maxime, Toledo Marisol, Licona Juan Carlos, Alarcón Alfredo, Prieto Adriana, Rudas Agustín, van der Meer Peter J, Killeen Timothy J, Marimon Junior Ben-Hur, Poorter Lourens, Boot Rene G A, Stergios Basil, Torre Emilio Vilanova, Costa Flávia R C, Levis Carolina, Schietti Juliana, Souza Priscila, Groot Nikée, Arets Eric, Moscoso Victor Chama, Castro Wendeson, Coronado Euridice N Honorio, Peña-Claros Marielos, Stahl Clement, Barroso Jorcely, Talbot Joey, Vieira Ima Célia Guimarães, van der Heijden Geertje, Thomas Raquel, Vos Vincent A, Almeida Everton C, Davila Esteban Álvarez, Aragão Luiz E O C, Erwin Terry L, Morandi Paulo S, de Oliveira Edmar Almeida, Valadão Marco B X, Zagt Roderick J, van der Hout Peter, Loayza Patricia Alvarez, Pipoly John J, Wang Ophelia, Alexiades Miguel, Cerón Carlos E, Huamantupa-Chuquimaco Isau, Di Fiore Anthony, Peacock Julie, Camacho Nadir C Pallqui, Umetsu Ricardo K, de Camargo Plínio Barbosa, Burnham Robyn J, Herrera Rafael, Quesada Carlos A, Stropp Juliana, Vieira Simone A, Steininger Marc, Rodríguez Carlos Reynel, Restrepo Zorayda, Muelbert Adriane Esquivel, Lewis Simon L, Pickavance Georgia C, Phillips Oliver L
School of Geography, University of Leeds, Leeds LS2 9JT, UK.
1] Jardín Botánico de Missouri, Prolongacion Bolognesi Mz.e, Lote 6, Oxapampa, Pasco, Peru [2] Universidad Nacional de San Antonio Abad del Cusco, Av. de la Cultura No 733, Exeter Cusco, 733, Peru.
Nat Commun. 2015 Apr 28;6:6857. doi: 10.1038/ncomms7857.
While Amazonian forests are extraordinarily diverse, the abundance of trees is skewed strongly towards relatively few 'hyperdominant' species. In addition to their diversity, Amazonian trees are a key component of the global carbon cycle, assimilating and storing more carbon than any other ecosystem on Earth. Here we ask, using a unique data set of 530 forest plots, if the functions of storing and producing woody carbon are concentrated in a small number of tree species, whether the most abundant species also dominate carbon cycling, and whether dominant species are characterized by specific functional traits. We find that dominance of forest function is even more concentrated in a few species than is dominance of tree abundance, with only ≈1% of Amazon tree species responsible for 50% of carbon storage and productivity. Although those species that contribute most to biomass and productivity are often abundant, species maximum size is also influential, while the identity and ranking of dominant species varies by function and by region.
尽管亚马孙森林的物种异常多样，但树木的丰度在很大程度上偏向于相对较少的“超级优势”物种。除了物种多样性之外，亚马孙树木还是全球碳循环的关键组成部分，其吸收和储存的碳比地球上任何其他生态系统都要多。在此，我们利用一个包含530个森林地块的独特数据集来探讨，储存和生产木质碳的功能是否集中在少数树种上，最丰富的物种是否也主导着碳循环，以及优势物种是否具有特定的功能特征。我们发现，森林功能的优势比树木丰度的优势更集中在少数物种上，仅约1%的亚马孙树种就贡献了50%的碳储存和生产力。虽然那些对生物量和生产力贡献最大的物种通常数量丰富，但物种的最大尺寸也有影响，而优势物种的身份和排名因功能和地区而异。
