Estudio demográfico de Miconia corymbiformis y Miconia crocea en el acus del bosque Montano alto de la parroquia Baquerizo Moreno, cantón Píllaro, provincia de Tungurahua.

Abstract

A demographic study of Miconia corymbiformis and Miconia crocea was carried out in the Area of Conservation and Sustainable Use (ACUS) of the high montane forest in the parish of Baquerizo Moreno. The methodology consisted on making 10 plots of 10 x 10 meters, with a sample area of 1000 m2 , having a separation between plots of at least 100 meters; in each plot samples of the species under study were collected and identified in the herbarium at the ESPOCH, in the field were also counted the number of individuals, height and diameter at breast height in meters, the vegetative stage of the species was determined separating them by their diameter in: seedlings (0.03- 0.09 m); with these data the Importance Value Indices, Shannon and Simpson diversity indices, and their numerical distribution were calculated to determine the survival of each species, based on the graphical representation of growth of an inverted "J"; demographic maps were also prepared to analyze the light factor in the influence on the species. The Importance Value Index of M. corymbiformis was 58.11 %, in contrast to M. crocea which presented a value of 41.89 %, there was a count of 26 individuals for both species, M. corymbiformis with 10, 10 and 6 individuals respectively for each vegetative stage; while for M. crocea they were 6, 9 and 11, respectively; the Shannon index values were 0.71 and 1.07, those of Simpson were 0.80 and 0.65, for M. corymbiformis and M. crocea, respectively. The number of individuals of M. crocea does not ensure the survival of the species, so it is recommended to enhance the sexual or asexual propagation of species that have problems in their survival.