Assembleia de epífitas em Aspidosperma polyneuron Müll.Arg. (Apocynaceae) na Reserva Biológica das Perobas, em Cianorte e Tuneiras do Oeste, Paraná

Abstract

The Atlantic Rainforest is one of biomes under greater threat, remaing in thParaná less than 10% of its original extentension however, posses high levels of biodiversity and endemism in the few isolated forest remaining fitting as a global hotspot. Aiming the regional biodiversity protection in 2006, the Biological Reserve of Perobas was created with 8716.13 ha, the largest forest fragment in north / northeast of the state and it is caracterized as a zone of seasonal forest ecotone between semideciduous and Araucaria Forest. The Data collection occurred between February and October 2013. The botanic material was collected and prepared according to the standard techniques and embedded in the Herbarium (HCF) of the Federal University of Technology-Paraná in the municipality of Campo Mourão. The taxonomic identification was carried out by consulting the relevant literature and sendingthe to experts. The objective of this study was to investigate the species of epiphytes on Aspidosperma polyneuron, comparing individuals inside the remnant forest and edges, as well as examining the role of environmental variables and ecological interactions in structuring assemblages of epiphytes by analyzing the diversity index (Shannon-Wiener) and value of epiphytic importance where there was a slight separation between the communities. 26 species of vascular epiphytes associated with Aspidosperma polyneuron were found in the Biological Reserve of Perobas. Orchidaceae family was the richest one.The anemochory was the predominant form of propagule dispersion with 73% of species and the predominant ecological category was true holoephiphytes, with 25 species (96.15%).