| dc.description.abstract | The present investigation had the purpose of determining the botanical composition, diversity
and abundance of weeds present in the pastures of the Chorocopte parish, which was carried
out in five altitudinal ranges: floor one that goes from 3168 to 3368 m s.n.m., floor two of 3368
at 3568 m s.n.m., floor three from 3568 to 3768 m s.n.m., floor four 3768 to 3968 m s.n.m. and
floor five from 3968 to 4168 m s.n.m. In this place, UPA's of 500 m2 were established to carry
out the sampling. In each site, the number of species and the number of individuals per species
were counted, and the diameter of the weed stem (mm) was recorded. In the data analysis,
variables such as: relative density (DR), relative frequency (FR), relative dominance (DmR)
and Importance Value Index (IVI) were determined; likewise, the Shannon diversity index (H')
and the Margalef richness index (DMG) were estimated. Regarding the botanical composition,
39 species of weeds were recorded in the Chorocopte parish, which are within 19 families; the
family with the highest species richness was Asteraceae, Poaceae, with 7 and 6 species
respectively; the most important species in the parish are: Agropyron repens, Holcus lanatus,
whose importance value indices (IVI) are: 9,21 and 8,42. For the community studied, an H' of
0,99 and a DMG of 2,99 were recorded. | |
