Resumen

RUBIO TOBON, Cuauhtémoc Alain et al. Disturbance influence on morphological attributes and population structure of Dalbergia palo-escrito Rzed. & Guridi-Gómez. Rev. mex. de cienc. forestales [online]. 2025, vol.16, n.87, pp.4-27.  Epub 26-Mayo-2025. ISSN 2007-1132.  https://doi.org/10.29298/rmcf.v16i87.1500.

Palo escrito is considered a precious wood and is used in luthier woodworking; its uncontrolled harvesting puts its natural populations at risk. Fortunately, its adaptability to disturbed areas and secondary vegetation suggest that it is susceptible to management. Mensuration attributes were analyzed of this species in relation to the disturbance index (human activity, livestock and habitat deterioration) in four natural populations. The populations were morphologically described by organizing individuals by Euclidean distances. The population density and aggregation pattern were established using the Coefficient of variation in the distance between individuals. Results showed from which four morphological groups, Group 3 was formed with individuals with straight, non-bifurcated stems and complete dominance in the initial axis for timber production. All populations differed significantly (p≤0.01) in composition in all disturbance comparisons (Chi 2 >19.3). The greatest disturbance was due to human activity, followed by livestock activity and finally habitat deterioration. Populations with an intermediate level of disturbance have the highest number of individuals best suited for timber production; however, extremes in the level of disturbance compromise recruitment and the homogeneity of desirable morphological attributes. Also, spatial distribution analysis showed that the species forms clusters of individuals in all populations. It is concluded that disturbance modifies the density and morphological conformation of individuals, but only to a point, which makes this species susceptible to agrosilvopastoral and conservation management.

Palabras llave : Habitat deterioration; agrosilvopastoral management; Palo escrito; natural population; restoration; secondary vegetation.

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