Brioflora de duas florestas de terra firme na Área de Proteção Ambiental do Lago de Tucuruí, PA, Brasil

Abstract

-(Bryoflora of two terra-firme forests in the Área de Proteção Ambiental do Lago de Tucuruí, Pará State, Brazil). The aim of this study was to investigate the richness of bryophytes (Bryophyta and Marchantiophyta) in two Wildlife Protection Areas at the Environmental Protection Area of Tucuruí Lake and to compare these results with the records of other mainland areas in the state of Pará. The sampling effort by area was of 200 botanical samples. In total, 90 species, 61 liverworts, and 29 mosses were registered, which represent 25% of the bryoflora of Pará State. Cololejeunea sicaefolia (Gottsche) Pócs & Bernecker and Cololejeunea planissima (Mitt.) Abeyw. are new records for the Brazilian Amazon and Americas, respectively. The richness found, especially of taxa rarely or never before collected in the state, reinforces the importance of conserving these areas.

Bryophytes in fragments of Terra Firme forest on the great curve of the Xingu River, Pará state, Brazil 1 Part of Master's Dissertation of the first author.

“…Leucobryum martianum was also considered abundant in the Amazon, forming large mats on the floor of terra firme forest (Yano, 1992), Cheilolejeunea aneogyna, Harpalejeunea oxyphylla and Radula javanica are common species in lowland tropical forest, and the two former species can also be found in submontane forest (Gradstein and Costa, 2003). In Pará, Cheilolejeunea aneogyna was registered in both primary and secondary forests (Garcia et al, 2014;Moura et al, 2013;Tavares-Martins et al, 2014). Tavares-Martins et al (2014) registered H. oxyphylla and R. javanica exclusively in canopy of terra firme forest and emphasized that these species are typical of open environments.…”

“…Studies on bryophytes in the state of Pará were performed in different forest formations and various parts of the state as in the surroundings of the Lake Tucuruí (Ilkiu-Borges et al, 2004;Garcia et al, 2014), Serra dos Carajás (Moraes and Lisboa, 2006), Caxiuanã (Alvarenga and Lisboa, 2009;, metropolitan region of Belém (Lisboa and Ilkiu-Borges, 1995;Moura et al, 2013), Marajó Island (Lisboa et al, 1999;Brito and Ilkiu-Borges, 2013) and northeastern Pará (Santos and Lisboa, 2008;Lisboa and Tavares, 2008;Tavares-Martins et al, 2014). In the southwestern state, it is recorded only the inventory held by Lisboa and Ilkiu-Borges (2001) in São Luiz do Tapajós, in the municipality of Itaituba.…”

New records for the bryophyte flora of the Brazilian Amazon

“…This species has probably been overlooked in the Neotropics (Gradstein 1994). Brazil: AC; PA (Garcia et al 2014). Known from northern South America (Venezuela, Colombia and Peru) (Frahm 1991).…”