a small mammal community in a forest fragment, vegetation corridor and coffee matrix system in the brazilian atlantic forest一个小型哺乳动物社区森林中的片段,植被走廊和咖啡矩阵系统在巴西大西洋森林.pdfVIP

A Small Mammal Community in a Forest Fragment, Vegetation Corridor and Coffee Matrix System in the Brazilian Atlantic Forest ´ Mariana Ferreira Rocha*, Marcelo Passamani, Julio Louzada Setor de Ecologia, Departamento de Biologia, Universidade Federal de Lavras, Lavras, Brazil Abstract The objective of our work was to verify the value of the vegetation corridor in the conservation of small mammals in fragmented tropical landscapes, usi ng a model system in the southeastern Minas Gerais. We evaluated and compared the composition and structure of small mammals in a vegetation corridor, forest fragments and a coffee matrix. A total of 15 species were recorded, and the highest species richness was observed in the vegetation corridor (13 species), followed by the forest fragments (10) and the coffee matrix (6). The absolute abundance was similar between the vegetation corridor and fragments (F = 22.94; p = 0.064), and the greatest differences occurred between the vegetation corridor and the matrix (F = 22.94; p = 0.001) and the forest fragments and the matrix (F = 22.94; p = 0.007). Six species showed significant habitat preference possibly related to the sensitivity of the species to the forest disturbance. Marmosops incanus was the species most sensitive to disturbance; Akodon montensis, Cerradomys subflavus, Gracilinanus microtarsus and Rhipidomys sp. displayed little sensitivity to disturbance, with a high relative abundance in the vegetation corridor. Calomys sp. was the species least affected by habitat disturbance, displaying a high relative abundance in the coffee matrix. Alt