Diversidad de briófitos epifitos presentes en un bosque secundario del predio de la franja Vianí, Cundinamarca

Abstract

Several studies have been conducted in Colombia to understand the effects of deforestation on the taxonomic diversity of epiphytic plants, but few are focused on non-vascular plants, such as bryophytes. The exploration of all the diversity of secondary forests is key to the promotion of environmental care of these ecosystems and to limit projects to expand agricultural or agronomic territories. The municipality of Vianí in Cundinamarca has sub-Andean forests, which have been strongly threatened by anthropic activities such as livestock and agriculture. Since there are no records for the region in relation to brioflora, the need arises to know the diversity of these species, which serves as a basis for implementing conservation and environmental education projects. The main objective of this work is to determine the diversity of species of epiphytic bryophytes in the La Franja site located in the Vianicito district of the municipality of Vianí, Cundinamarca. At the methodological level, the identification, collection and determination of samples of species of epiphytic bryophytes present in four strata of 35 phophytes distributed in 7 hectares, selected according to the methodology of Gradstein (2003) and Johansson, (1974)composition and alpha diversity analyses were performed. 2060 bryophytes were recorded in 98 species and 28 families of mosses (42 species, 22 families) and liver (56 species, 6 families). Two new records were found for the department of Cundinamarca and one for Colombia. The species Porella leiboldii was recorded, which is found in The red book of bryophytes as a vulnerable species. There was a dominance in the abundance and diversity of species by hepatics, especially in the families Lejeuneaceae with 22 species and Plagiochilaceae with 17. The most diverse moss families were Calymperaceae with 6 species and Amblystegiaceae with 5. As a conclusion the work represents a first record for the bryophyte diversity of the area, as well as an invitation letter to sample unexplored areas for this flora.