Variation in wood density across South American tropical forests
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In: Nature Communications, Vol. 16, No. 1, 2351, 12.2025.
Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Variation in wood density across South American tropical forests
AU - Author Collaboration für "Variation in wood density across South American tropical forests"
AU - Sullivan, Martin J.P.
AU - Phillips, Oliver L.
AU - Galbraith, David
AU - Almeida, Everton
AU - de Oliveira, Edmar Almeida
AU - Almeida, Jarcilene
AU - Dávila, Esteban Álvarez
AU - Alves, Luciana F.
AU - Andrade, Ana
AU - Aragão, Luiz
AU - Araujo-Murakami, Alejandro
AU - Arets, Eric
AU - Arroyo, Luzmila
AU - Cruz, Omar Aurelio Melo
AU - Baccaro, Fabrício
AU - Baker, Timothy R.
AU - Banki, Olaf
AU - Baraloto, Christopher
AU - Barlow, Jos
AU - Barroso, Jorcely
AU - Berenguer, Erika
AU - Blanc, Lilian
AU - Blundo, Cecilia
AU - Bonal, Damien
AU - Bongers, Frans
AU - Bordin, Kauane Maiara
AU - Brienen, Roel J.W.
AU - Broggio, Igor S.
AU - Burban, Benoit
AU - Cabral, George
AU - Camargo, José Luís
AU - Cardoso, Domingos
AU - Carniello, Maria Antonia
AU - Castro, Wendeson
AU - de Lima, Haroldo Cavalcante
AU - Cavalheiro, Larissa
AU - Ribeiro, Sabina Cerruto
AU - Ramos, Sonia Cesarina Palacios
AU - Moscoso, Victor Chama
AU - Chave, Jerôme
AU - Coelho, Fernanda
AU - Comiskey, James A.
AU - Valverde, Fernando Cornejo
AU - Costa, Flávia
AU - Coutinho, Italo Antônio Cotta
AU - da Costa, Antonio Carlos Lola
AU - de Medeiros, Marcelo Brilhante
AU - del Aguila Pasquel, Jhon
AU - Derroire, Géraldine
AU - Klipel, Joice
N1 - Publisher Copyright: © The Author(s) 2025.
PY - 2025/12
Y1 - 2025/12
N2 - Wood density is a critical control on tree biomass, so poor understanding of its spatial variation can lead to large and systematic errors in forest biomass estimates and carbon maps. The need to understand how and why wood density varies is especially critical in tropical America where forests have exceptional species diversity and spatial turnover in composition. As tree identity and forest composition are challenging to estimate remotely, ground surveys are essential to know the wood density of trees, whether measured directly or inferred from their identity. Here, we assemble an extensive dataset of variation in wood density across the most forested and tree-diverse continent, examine how it relates to spatial and environmental variables, and use these relationships to predict spatial variation in wood density over tropical and sub-tropical South America. Our analysis refines previously identified east-west Amazon gradients in wood density, improves them by revealing fine-scale variation, and extends predictions into Andean, dry, and Atlantic forests. The results halve biomass prediction errors compared to a naïve scenario with no knowledge of spatial variation in wood density. Our findings will help improve remote sensing-based estimates of aboveground biomass carbon stocks across tropical South America.
AB - Wood density is a critical control on tree biomass, so poor understanding of its spatial variation can lead to large and systematic errors in forest biomass estimates and carbon maps. The need to understand how and why wood density varies is especially critical in tropical America where forests have exceptional species diversity and spatial turnover in composition. As tree identity and forest composition are challenging to estimate remotely, ground surveys are essential to know the wood density of trees, whether measured directly or inferred from their identity. Here, we assemble an extensive dataset of variation in wood density across the most forested and tree-diverse continent, examine how it relates to spatial and environmental variables, and use these relationships to predict spatial variation in wood density over tropical and sub-tropical South America. Our analysis refines previously identified east-west Amazon gradients in wood density, improves them by revealing fine-scale variation, and extends predictions into Andean, dry, and Atlantic forests. The results halve biomass prediction errors compared to a naïve scenario with no knowledge of spatial variation in wood density. Our findings will help improve remote sensing-based estimates of aboveground biomass carbon stocks across tropical South America.
KW - Biology
KW - Ecosystems Research
UR - http://www.scopus.com/inward/record.url?scp=105000085493&partnerID=8YFLogxK
U2 - 10.1038/s41467-025-56175-4
DO - 10.1038/s41467-025-56175-4
M3 - Journal articles
C2 - 40064856
AN - SCOPUS:105000085493
VL - 16
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
M1 - 2351
ER -