LAUSR

Abstract Several studies indicate that the Amazon rainforest is home to the greatest biodiversity of tree species on the planet. The unique quality of this forest typology is under constant threat of change owing to the behavior of climate variables and different anthropic activities that occur in the biome itself. Therefore, it is essential to conduct studies that clarify the factors that affect the formation of forests in this ecosystem and to validate the use of forest resources by society through appropriate forest management practices. Thus, this study aimed to answer how the structure, composition and floristic diversity of the forest are influenced by forest logging in different phases of development of a local Amazonian forest, and whether there is a relationship between these attributes and regional and global climate factors. This study assessed the dynamics of natural regeneration of 36 permanent plots over 33 years after logging in the Tapajos National Forest in Belterra, State of Para, Brazil. The plots studied were measured in 1981, 1983, 1985, 1987, 1992, 1997, 2007, and 2012. All individuals with height greater than 30 cm and diameter at breast height