东北豹（Panthera Pardus Orientalis）是全球极度濒危的亚洲大型猫科动物，其种群目前仅分布于我国东北和俄罗斯远东相连接的地区。我国东北地区是全球东北豹种群的重要现实分布区和历史分布区，其种群的保护与恢复对全球种群的可持续生存和发展具有重要意义。本项研究基于国际大型猫科动物保护生物学的最新研究成果和现代先进技术手段的应用，从栖息地斑块和景观尺度，猎物种群和群落尺度以及捕食者集团内部互作关系等生态系统整体和多尺度的视角，揭示直接或间接制约东北豹种群空间分布动态的关键生态因子的作用机制，为栖息地和猎物的恢复以及捕食者集团内种群的有效管理提供可定量化的生态阈值指标，促进和丰富经典生态学“上行效应”和“下行效应”理论的研究。而且，该项研究成果也将为我国开展的大型猫科动物栖息地和猎物种群恢复措施的制定和实施提供重要技术参考，有效促进中俄联合保护东北豹种群资源的国际合作成效。

Amur leopard（Panthera Pardus Orientalis）is critically endangered Asian big feline species worldwide and its population only distributes in the areas of both Northeast China and Russia Far East. Northeast China is the key current and historical ranges of Amur leopard population. The conservation and recovery of its population is essential for the sustainable survival of population worldwide. Based on both the new insights of international big cat conservation biology and advanced technology, this project will reveal the functional mechanism of key ecological factors driving the spatial distribution of Amur leopard population from multi-scales and multi-perspectives, i.e., habitat patch and landscape scales, prey population and community scales, and intra-guild interactions of predators. This research will provide quantitative index for recovery of habitat and prey, and population management of predators intra-guild，prompt and enrich the classical ecological theories--"Bottom Up Effect" and "Top Down Effect". Consequently, the results of this study may provide important technical references for making and applying measures on habitat and prey recovery of big cat conservation, prompting international cooperation effectiveness for Amur leopard population conservation between Russia and China.