Three-dimensional wood anatomy and functional coordination in ecuadorian seasonal forest species: A STATIS DUAL approach
PEÑA K, Edvardsson J, Bräuning A (2026)
Publication Language: English
Publication Type: Journal article, Original article
Publication year: 2026
Journal
Book Volume: 100
Article Number: 126619
DOI: 10.1016/j.dendro.2026.126619
Abstract
This study investigates the wood anatomical diversity and functional trait coordination of eight co-occurring timber species in a North Ecuadorian seasonal tropical rainforest, an ecosystem heavily influenced by the Intertropical Convergence Zone (ITCZ). We integrated traditional qualitative and quantitative descriptions following International Association of Wood Anatomists (IAWA) standards with the advanced multi-table Structuring de Tableaux à Trois Indices de la Statistique (STATIS DUAL), a multi-table multivariate method tailored for three-way data configurations (observations × variables × species blocks), to evaluate quantitative trait coordination across species directly from internal xylem covariance structures. Qualitative characterization revealed a gradient of cambial responses to rainfall seasonality, capturing highly distinct growth ring boundaries in Platymiscium pinnatum and Cedrela odorata, and intermediate boundaries in Brosimum utile and Dialyanthera gracilipes. Quantitatively, the Inter-structure analysis of STATIS DUAL confirmed a robust, biophysically constrained core structural alignment (74.3% shared variance), where the Hilbert-Smith vectorial correlation coefficient (RV) exposed the highest structural synchronization (RV = 0.92) among Zanthoxylum riedelianum, B. utile, and D. gracilipes, while Castilla elastica decoupled from the common matrix. The Consensus (compromise) configuration demonstrated an orthogonal segregation between primary wood systems, showing that vertical transport pathways operate independently from horizontal storage tissues and mechanical elongation. Furthermore, the Intra-structure analysis successfully mapped species-specific architectural trajectories (partial projections across preparation planes onto the compromise space), isolating an exceptionally plastic cellular arrangement and unique structural variation in P. pinnatum. By resolving these multi-plane anatomical profiles and species-specific trajectories, this research successfully models how community-level structural coordination and individualistic trait strategies co-occur to support tree functional integration and adaptation in seasonal tropical environments.
Authors with CRIS profile
KELLY PEÑA
Lehrstuhl für Geographie (Physische Geographie)
Achim Bräuning
Lehrstuhl für Geographie (Physische Geographie)
Involved external institutions
Sweden (SE)How to cite
APA:
PEÑA, K., Edvardsson, J., & Bräuning, A. (2026). Three-dimensional wood anatomy and functional coordination in ecuadorian seasonal forest species: A STATIS DUAL approach. Dendrochronologia, 100. https://doi.org/10.1016/j.dendro.2026.126619
MLA:
PEÑA, KELLY, Johannes Edvardsson, and Achim Bräuning. "Three-dimensional wood anatomy and functional coordination in ecuadorian seasonal forest species: A STATIS DUAL approach." Dendrochronologia 100 (2026).
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