Diversidad preliminar de briófitos y líquenes del Parque Nacional Río Negro- Sopladora

Abstract

Abstract: Lichens and bryophytes, with 2225 and 1650 species respectively, are a very diverse group in Ecuador. This study focused on analyzing the preliminary diversity of lichens and bryophytes (epiphytic and terrestrial) in the Río Negro Sopladora Tinajillas National Park. For epiphytic lichens and bryophytes, trees were selected, and their presence/absence was recorded in a 20 x 30 cm quadrat. For terrestrial organisms, 20 x 30 cm quadrats were established. The effects of substrate on richness and diversity were analyzed using the Mann-Whitney U test. Species composition between zones was evaluated using a non-metric multidimensional scaling (NMDS) analysis, and to analyze the effect of substrate, a multivariate analysis based on permutations (PERMANOVA) was performed. A total of 28 species were recorded (16 bryophytes and 12 lichens). The Mann-Whitney U test indicated greater richness and diversity of lichens and bryophytes on the epiphytic substrate compared to species growing in soil, and multivariate analyses showed that the composition differed between the substrates.