Pequenos mamíferos não voadores da RPPN Galheiro : a influência dos microhabitats na estrutura da comunidade

Abstract

The Cerrado is the second lagerst biome of Brazilian and also the second most threatened, its different phytophysiognomies provide different habitat conditions that influence species establishment. This study aimed to which species are present in the phytophysiognomies of semideciduous seasonal forest and cerrado stricto sensu, evaluating possible differences in the richness, abundance, structure and composition of the community of small non-flying mammals, as well as possible environmental preferences. The study was done at RPPN Galheiro, located in the city of Perdizes/MG. The sampling during six campaigns with seven days each, three were made during the dry season and the others were made during the rainy season. The capture methodology used was with traps Sherman e Tomahawnk, using standard bait and the environmental variables were collected using the proposed method by Freitas et al (2002). The results indicate that richness and abundance are similar between phytophysiognomies, while community composition is different between the two environments. Moreover due to the high heterogeneity of microhabitats in the cerrado, porpouse the presence of rocks and the availability of fruits, positively influence the probability of occurrence of the species. This study emphasizes the importance of preserving both phytophysiognomies, because each one houses the specific composition of species. This knowledge can support more effective conservation strategies, improving measures focused on group protection. Additionally, this study added four new species to the list of small non-flying mammals in the RPPN Galheiro.