Foliar elementome and functional traits relationships identify tree species niche in French Guiana rainforests

Biogeochemical niche (BN) hypothesis aims to relate species/genotype elemental composition with its niche based on the fact that different elements are involved differentially in distinct plant functions. We here test the BN hypothesis through the analysis of the 10 foliar elemental concentrations a...

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Detalles Bibliográficos
Autores: Sardans i Galobart, Jordi|||0000-0003-2478-0219, Llusia, Joan|||0000-0003-0164-2737, Ogaya Inurrigarro, Romà|||0000-0003-4927-8479, Vallicrosa Pou, Helena|||0000-0002-5860-3096, Filella, Iolanda|||0000-0001-6262-5733, Gargallo-Garriga, Albert|||0000-0002-7536-2888, Peguero, Guille|||0000-0002-6464-1486, Van Langenhove, Leandro|||0000-0002-9603-5106, Verryckt, Lore|||0000-0002-9452-5216, Stahl, Clément|||0000-0001-5411-1169, Courtois, Elodie|||0000-0001-8741-9100, Bréchet, Laëtitia|||0000-0002-2744-8820, Tariq, Akash|||0000-0002-5382-9336, Zeng, Fanjiang|||0000-0003-4209-6971, Alrefaei, Abdulwahed Fahad|||0000-0002-3761-6656, Wang, Weiqi, Janssens, Ivan|||0000-0002-5705-1787, Peñuelas, Josep|||0000-0002-7215-0150
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:284229
Acceso en línea:https://ddd.uab.cat/record/284229
https://dx.doi.org/urn:doi:10.1002/ecy.4118
Access Level:acceso abierto
Palabra clave:Diversity
Foliar elementome
Nitrogen
Phosphorus
Phylogeny
Stoichiometry
Sympatric speciation
Tropical forest
Descripción
Sumario:Biogeochemical niche (BN) hypothesis aims to relate species/genotype elemental composition with its niche based on the fact that different elements are involved differentially in distinct plant functions. We here test the BN hypothesis through the analysis of the 10 foliar elemental concentrations and 20 functional-morphological of 60 tree species in a French Guiana tropical forest. We observed strong legacy (phylogenic + species) signals in the species-specific foliar elemental composition (elementome) and, for the first time, provide empirical evidence for a relationship between species-specific foliar elementome and functional traits. Our study thus supports the BN hypothesis and confirms the general niche segregation process through which the species-specific use of bio-elements drives the high levels of α-diversity in this tropical forest. We show that the simple analysis of foliar elementomes may be used to test for BNs of co-occurring species in highly diverse ecosystems, such as tropical rainforests. Although cause and effect mechanisms of leaf functional and morphological traits in species-specific use of bio-elements require confirmation, we posit the hypothesis that divergences in functional-morphological niches and species-specific biogeochemical use are likely to have co-evolved.

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