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A. and Zent, Stanford and Zent, Egleé L. and Cano, Angela and Carrero Márquez, Yrma Andreina and Correa, Diego F. and Costa, Janaina Barbosa Pedrosa and Flores, Bernardo Monteiro and Galbraith, David and Holmgren, Milena and Kalamandeen, Michelle and Nascimento, Marcelo Trindade and Oliveira, Alexandre A. and Ramirez-Angulo, Hirma and Rocha, Maira and Scudeller, Veridiana Vizoni and Sierra, Rodrigo and Tirado, Milton and Umaña, Maria Natalia and van der Heijden, Geertje and Vilanova Torre, Emilio and Ahuite Reategui, Manuel Augusto and Baider, Cláudia and Balslev, Henrik and Cárdenas, Sasha and Casas, Luisa Fernanda and Farfan-Rios, William and Ferreira, Cid and Linares-Palomino, Reynaldo and Mendoza, Casimiro and Mesones, Italo and Parada, Germaine Alexander and Torres-Lezama, Armando and Urrego Giraldo, Ligia Estela and Villarroel, Daniel and Zagt, Roderick and Alexiades, Miguel N. and de Oliveira, Edmar Almeida and Garcia-Cabrera, Karina and Hernandez, Lionel and Palacios Cuenca, Walter and Pansini, Susamar and Pauletto, Daniela and Ramirez Arevalo, Freddy and Sampaio, Adeilza Felipe and Valderrama Sandoval, Elvis H. and Valenzuela Gamarra, Luis and ter Steege, Hans (2024) One sixth of Amazonian tree diversity is dependent on river floodplains. Nature Ecology and Evolution. ISSN 2397-334X
Full text not available from this repository.Abstract
Amazonia’s floodplain system is the largest and most biodiverse on Earth. Although forests are crucial to the ecological integrity of floodplains, our understanding of their species composition and how this may differ from surrounding forest types is still far too limited, particularly as changing inundation regimes begin to reshape floodplain tree communities and the critical ecosystem functions they underpin. Here we address this gap by taking a spatially explicit look at Amazonia-wide patterns of tree-species turnover and ecological specialization of the region’s floodplain forests. We show that the majority of Amazonian tree species can inhabit floodplains, and about a sixth of Amazonian tree diversity is ecologically specialized on floodplains. The degree of specialization in floodplain communities is driven by regional flood patterns, with the most compositionally differentiated floodplain forests located centrally within the fluvial network and contingent on the most extraordinary flood magnitudes regionally. Our results provide a spatially explicit view of ecological specialization of floodplain forest communities and expose the need for whole-basin hydrological integrity to protect the Amazon’s tree diversity and its function.