Examinando por Autor "López Camacho, René,"
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- ÍtemIntraspecific variation in functional traits of wood and leaf of the Colombian Oak, Quercus humboldtii in an altitudinal gradient(Fundación Universitaria Los Libertadores. Sede Bogotá., ) López Camacho, René,; Quintero, Alexandra,; Bossa, Raúl;; López Camacho, RenéThe functional traits are specific characteristics of species that determine the effectiveness of their survival strategies in different environmental conditions since the trait - environment relationships can be considered as evidence of adaptation in plants. This study investigated the intraspecific variation in different traits of wood and leaf in Colombian oak (Quercus humboldtii) in an altitudinal gradient. In an oak forest in Colombia, 65 trees of oaks were measured in an altitudinal gradient from 1890 to 2870 m.a.s.l. It was evaluated 12 functional traits of wood, 6 of the leaf, 7 of the tree structures and 13 soil variables. Intraspecific variation in each trait was related to environmental factors (elevation, temperature, precipitation and variables of soil). Furthermore, the response of the key traits of wood and leaf were explained through models that include environmental variables. The results indicate that elevation is a factor that affects the behaviour of leaf and wood traits, specifically SLA (specific leaf area) and PDI (pits diameter). Likewise, the elevation (negatively) and branch height (BH, positively) are the most important explanatory factors for SLA variation, while WDT (wood density of trunk) explained for DBH (Diameter at breast height, negatively) BR (Bark roughness, positively) LS (Leaf surface, positively) and SILT (positively). Three groups were formed from the analysis of wood and leaf traits, which corroborate that the variation in traits is related to elevation. The research suggests that some traits leaf and wood present plasticity, traits WDT, PDI, and SLA showed changes along the altitudinal gradient. Three groups of intraspecific functional variability are identified for Q. humboldtii the first in low areas < 2300 m.a.s.l the second group to 2600 m.a.s.l and third of high areas greater than 2600 m.a.s.l. Plasticity is evidenced for the Colombian oak contributing to the knowledge of the VIF in Fagaceae