Antin C. auteur aut IRD Pélissier Raphaël auteur aut IRD Vincent Grégoire auteur aut IRD Couteron Pierre auteur aut IRD text journalArticle eng text/pdf born digital access While theoretical allometric models postulate universal scaling exponents, empirical relationships between tree dimensions show marked variability that reflects changes in the biomass allocation pattern. As growth of the various tree compartments may be controlled by different functions, it is hypothesized that they may respond differently to factors of variation, resulting in variable tree morphologies and potentially in trade-offs between allometric relationships. We explore the variability of tree stem and crown allometries using a dataset of 1,729 trees located in an undisturbed wet evergreen forest of the Western Ghats, India. We specifically test whether species adult stature, terrain slope, tree size and crown light exposure affect the relationships between stem diameter and stem height (stem allometry), and between stem diameter and crown width, crown area and crown volume (crown allometries). Results show that both stem and crown allometries are subject to variations in relation to both endogenous (tree size, species adult stature) and exogenous (terrain slope, crown light exposure) factors. specialized ARBRE FORESTIER ZONE TROPICALE MESURE ALLOMETRIE TRONC LUMIERE EXPOSITION PENTE ETUDE COMPARATIVE TAILLE INDE 082VEGET02 074BOTA04 020STAT05 27 5 1485-1495 2013 0931-1890 https://www.documentation.ird.fr/hor/fdi:010058301 10.1007/s00468-013-0896-7 0931-1890 [F B010058301] https://www.documentation.ird.fr/hor/fdi:010058301 https://www.documentation.ird.fr/intranet/publi/depot/2013-12-04/010058301.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2013-10-03 2014-11-05 fdi:010058301 fre