Abundance and composition of the medium to large-sized mammals in a private area of a REDD+ project in Acre, Brazil

Abstract: The implementation of private areas focused on conservation of species and habitats, combined with REDD+ policies, has become an important ally for biodiversity conservation, expanding the conservation areas of the most varied habitats, covering key groups such as large mammals, which are extremely important for the maintenance of ecosystem services. In the upper region of the Purus River in Acre, Brazil, an inventory was carried out using camera-traps, of medium and large mammals community in a private REDD+ area, known as the Purus Project. A total of 19 species of mammals were recorded with an effort of 1859 trap-nigths, including rare, endangered and key species. It is estimated that the richness for the area is of 22 species. Endangered and rare species such as the tapir (Tapirus terrestris) and the short-eared dog (Atelocynus microtis) presented high rates of relative abundance compared to other Conservation Units (UCs). The richness of medium to large-sized mammals recorded in the Purus Project underscores the importance of REDD+ in private areas for the conservation of this group, given the challenges for inclusion and creation of new protected areas. REDD+ projects in privates' areas become an important component for conservation of species and the connection between public conservation units favoring the spread of species and populations between areas, and consequently the gene flow.

摘要：以物种与栖息地保护为核心的私人保护区域，结合减少毁林和森林退化所致排放量（REDD+）政策，已成为生物多样性保护的重要支撑力量，其有效拓展了各类栖息地的保护范围，覆盖了大型哺乳类等对维持生态系统服务至关重要的关键类群。在巴西阿克雷州普鲁斯河上游区域，研究人员针对一处名为“普鲁斯项目”的私人REDD+保护区域内的中大型哺乳类群落开展了红外相机陷阱调查，本次调查累计布设1859个诱捕夜数，共记录到哺乳类19种，其中包含稀有物种、濒危物种及关键类群物种，经估算该区域的哺乳类物种丰富度可达22种。貘（Tapirus terrestris）与短耳犬（Atelocynus microtis）等濒危稀有物种的相对丰度显著高于其他保护单元（Conservation Units，缩写UCs）。普鲁斯项目记录的中大型哺乳类物种丰富度，凸显了私人区域内REDD+项目对该类群保护的重要价值——鉴于当前新建及纳入新保护区面临诸多挑战。私人区域内的REDD+项目已成为物种保护的重要组成部分，同时可助力公共保护单元之间建立生态连通性，促进物种与种群在不同区域间的扩散，进而推动基因流。