SciELO - Scientific Electronic Library Online

vol.37 número3Tolerancia a herbicidas y eficiencia del uso del agua en especies forestales utilizadas en programas de recuperación de zonas degradadasDistribución de la biomasa aérea y subterránea de árboles jóvenes de plantaciones y bosque nativo de Pinus sylvestris índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados




Links relacionados

  • En proceso de indezaciónCitado por Google
  • No hay articulos similaresSimilares en SciELO
  • En proceso de indezaciónSimilares en Google


Bosque (Valdivia)

versión On-line ISSN 0717-9200


YOULTON, Cristian et al. Jubaea chilensis distribution in "Las Palmas", Borough of Petorca, Región of Valparaíso - Chile. Bosque (Valdivia) [online]. 2016, vol.37, n.3, pp.501-507. ISSN 0717-9200.

Chilean palms (Jubaea chilensis) are endemic of central Chile and are classified as vulnerable according to the category of conservation. Even though the population of palms has gone down, there are still some groups (palmar) that remain in locations such as Petorca, Chile. In Petorca, the site "Las Palmas" was declared "Priority Site for the Biodiversity Conservation". However, the number of palms, their age and spatial distribution in "Las Palmas" are still unknown. Thus, in order to describe the conservation status, a population survey of palms was done. Location and age of every palm (infantile, child, adult or old, according to morphological features) were noted and their position georeferenced. Data were analyzed using a geographic information system that included maps and satellite imagery (Quickbird II). To assess the spatial distribution of palms, a Complete Spatial Randomness (CSR) test was applied using an L-function. Main results showed that 1,300 palms are present in "Las Palmas". Among those palms, 41 % are infantile, 45 % are young, 14 % are adults and 0.5 % are old plants. Infantile, young and adult palms have an aggregated distribution in high and inaccessible areas of the watershed headwater, while old palms have disaggregated distribution. The palmar is crossed by route E-37-D, where some adult palms that produce seeds are commonly present. However, if any seed gets to infantile palm, it does not reach the juvenile stage. There is no regeneration in lowland and in the proximity of communities. Thus, the palmar is reducing its extension.

Palabras clave : age distribution; palm forest; georeferencing; sclerophyllous forest.

        · resumen en Español     · texto en Español     · Español ( pdf )


Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons