Legacy effects control root elemental composition and stoichiometry in subtropical forests: Empirical support for the biogeochemical niche hypothesis DOI Open Access
Mingyan Hu, Yang Chen, Jordi Sardans

et al.

Journal of Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Abstract Under biogeochemical niche (BN) theory, plant allocation of elements to organs maintain fundamental biological processes varies with species, leading the formation species‐specific BNs. However, empirical support for BN theory is largely restricted leaf elemental composition and stoichiometry, a lack clarity about contribution fine root element content. Here, we analysed concentrations stoichiometry 9 including carbon (C), nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), aluminium (Al) manganese (Mn) in 137 tree species subtropical forest quantify test theoretical framework hypothesis. Our study showed phylogenetic signals stoichiometry. Fine 21 most abundant co‐existing tends be unique primarily driven by N content, as indicated canonical discriminant analysis. Legacy effects (phylogeny species) explained 23.3%–70.7% variation across different variables used characterize composition, BNs, whereas combined soil property, mycorrhizal association type topography factors 3.9%–17.7%. Synthesis : These results indicate that taxonomic distance (calculated metrics) represent proxy evolution achievement optimal function linked bio‐element use. Thus, our provides new evidence hypothesis, based on improves mechanistic understanding coexistence dynamics.

Language: Английский

Coordinated variations in leaf and root biogeochemical niches DOI Creative Commons
Chao Wang, Zhihui Yang, Mingzhu He

et al.

New Phytologist, Journal Year: 2025, Volume and Issue: unknown

Published: March 9, 2025

The biogeochemical niche (BN) hypothesis posits that each species has a specific elemental composition. However, the BN of roots and its interaction with leaf have largely been neglected until now across diverse environmental conditions. We investigated relationships between compositions leaves roots, phylogeny, variables, as well connection root BN. analyzed concentrations carbon, nitrogen, phosphorus, potassium, calcium, magnesium in 12 394 individuals from 1238 species. Consistent hypothesis, despite significant differences their ratios we observed strong legacy (phylogenetic + species) signals species-specific compositions. This finding confirms can contribute to identifying niches. Our study revealed higher phylogenetic conservatism for than provided evidence tight association roots. results underscore broad applicability biomes demonstrate critical role evolutionary driving coordinated dynamics both above- belowground ecological

Language: Английский

Citations

0
Legacy effects control root elemental composition and stoichiometry in subtropical forests: Empirical support for the biogeochemical niche hypothesis DOI Open Access
Mingyan Hu, Yang Chen, Jordi Sardans

et al.

Journal of Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Abstract Under biogeochemical niche (BN) theory, plant allocation of elements to organs maintain fundamental biological processes varies with species, leading the formation species‐specific BNs. However, empirical support for BN theory is largely restricted leaf elemental composition and stoichiometry, a lack clarity about contribution fine root element content. Here, we analysed concentrations stoichiometry 9 including carbon (C), nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), aluminium (Al) manganese (Mn) in 137 tree species subtropical forest quantify test theoretical framework hypothesis. Our study showed phylogenetic signals stoichiometry. Fine 21 most abundant co‐existing tends be unique primarily driven by N content, as indicated canonical discriminant analysis. Legacy effects (phylogeny species) explained 23.3%–70.7% variation across different variables used characterize composition, BNs, whereas combined soil property, mycorrhizal association type topography factors 3.9%–17.7%. Synthesis : These results indicate that taxonomic distance (calculated metrics) represent proxy evolution achievement optimal function linked bio‐element use. Thus, our provides new evidence hypothesis, based on improves mechanistic understanding coexistence dynamics.

Language: Английский

Citations

0