Efeitos do manejo florestal sustentável sobre a fauna de mamíferos

Abstract

Tropical forests are being disturbed by numerous human activities. Among them, selective logging stands out for being one of the main methods of logging in the tropics. Mammals are important for natural ecosystems and for the conservation of biodiversity, acting in various ecological services, such as seed dispersal agents, seed predators, top-of-the-chain predators, in addition, they are considered good indicators of both local changes in the habitat and landscape changes. Thus, the objective of this work was to evaluate the effects of sustainable forest management on the fauna of medium and large mammals in the Central Amazon. For this, areas with different ages since the extraction of native wood, and an unexplored area were sampled. A 2 km transect was delimited on the access roads in each of the study areas. Sampling was carried out using 10 digital camera traps. The 2 km transects were covered, along the access road, to record tracks, as well as direct visual and auditory observation. Based on the analyzed data, 1,014 audiovisual records of medium and large mammals were obtained, distributed in 21 species. No significant difference was observed between the groups of areas with different exploration ages and the unexplored area. Wealth values, number of records, community structure and trace records were not affected by the exploration, ie they do not change with age since exploration. Our results show that the impacts generated by sustainable forest management, in the intensity of exploration that takes place there, do not cause significant damage to the structure of the local mammal Community.