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Colombia Forestal
Print version ISSN 0120-0739
Abstract
HIGUITA, Heriberto David and ALVAREZ-DAVILA, Esteban. Regional scale representation based on a detailed floristic inventory in a one hectare plot in the tropical Andes. Colomb. for. [online]. 2015, vol.18, n.2, pp.207-224. ISSN 0120-0739. https://doi.org/10.14483/udistrital.jour.colomb.for.2015.2.a03.
Floristic composition of vascular plants and their distribution is reported for growth habits in a low montane rain forest (2600 m and 2500 mm/yr mean annual precipitation) in the northern Andes, based on a plot of 1 ha. The samples collected represented 318 species/morphospecies, 82 families (nine of which were pteridophytes) and 173 genera. 78% of the samples were identified to species. Groups with most species are pteridophytes (sensu lato), Orchidaceae, Asteraceae, Rubiaceae, Melastomataceae and Piperaceae, that represented 44% of all species recorded. The most diverse genera are Peperomia, Elaphoglossum, Mikania, Anthurium, and Miconia. Three species endemic to Antioquia (Brunellia trianae, Meriania antioquiensis and Mikania fragrans) were found. The individuals found in the plot represent 47% of the species, 48% of the genera and 60% of the families found in Arví Park, a reserve of 11400 hectares in which the plot was located. The plot had 108 species, 30 genera and one family not previously reported for Arvi Park. The number of common taxa between the plot and the Arví Park was 144 species, 142 genera and 69 families. Species richness/family in the plot accounts for 89% of the variation of species richness/family in the Arví Park, and 75% of the generic richness. We conclude that detailed floristic inventory of known area plots provide information representative of the regional flora and permit a rapid approximation of its biodiversity.
Keywords : tropical Andes; total count; intensive sampling; non-woody plants; vascular plants.