Hepáticas del Parque Natural Municipal “Robledales de Tipacoque”, Boyacá-Colombia

Abstract

In high mountain ecosystems, Hepaticae is prominent and are essential to regulate and maintain hydrological cycles; they also contribute to nutrient recycling. We sampled five different substrates (decomposing matter, tree base, bare soil, rocks and flush root) of the "Robledales de Tipacoque" Natural Park and recorded 52 species of Hepaticae belonging to 21 genera and 12 families. The families having the highest number of species were the Plagiochilaceae with 22 (40.7%) and Lejeuneaceae with nine (16.6%), and the substrates with the highest number of species were decaying matter (30), followed by rock (22). The floristic composition in altitudinal belts is so distinct, that species of Hepaticae were found constrained to one altitudinal range.

Bryophyte Communities along a Tropical Urban River Respond to Heavy Metal and Arsenic Pollution

“…The indicator species analysis showed that Clasmatocolea vermicularis, Fissidens serratus, Lophocolea bidentata, Monoclea gottschei, Noteroclada confluens, Symphyogyna brongniartii, Symphyogyna brasiliensis, Plagiochila laetevirens, and Rhodobryum huillense were the best indicators of the control zone, related to uncontaminated water. Accordingly, Lophocolea bidentata, Symphyogyna brongniartii, and Monoclea gottschei occur more abundantly in shady habitats with vegetation of undisturbed forests, due to the fact that they are sensitive to environmental changes [59,60]. Conversely, Fissidens elegans, Riccia crassifrons, and Marchantia polymorpha were the best indicators of more urbanized zones such as in southern, central, and northern areas with greater impact of anthropogenic disturbances.…”