Dispersal from one population to another is crucial for meta-population stability and survival. Long-distance dispersal events have been widely documented in male tigers (Panthera tigris), but similar events in female tigers are less known. We opportunistically recorded a long-distance dispersal event that ended with the establishment of a new home-range for a radio-collared sub-adult female tiger in central India. We analysed the animal’s movement patterns during the dispersal event and the subsequent home-range establishment. The average minimum distance and the average minimum daily displacements were 11.4 km and 4.5 km respectively. The total linear and cumulative displacements were 99.1 km and 340.2 km respectively, undertaken over 78 days. Using a Brownian bridge movement model, we showed that the tiger was not moving in a linear path, but showed exploratory movement. During this dispersal event, the tiger traversed an area of 2082 km² (95% UD), including 19 distinct ‘stepping-stone’ habitat patches. Combining the Ornstein–Uhlenbeck movement behaviour model and an autocorrelated kernel density estimation model, we identified a newly established home range of 40.3 km² at the end of the dispersal event. Our results describe the longest known female tiger dispersal event, highlighting the possibility that natural dispersal of female tigers can provide an additional option to assisted translocations for the species range expansion. This is relevant in current scenarios where tiger habitats remain fragmented and tiger population numbers are recovering due to effective in situ conservation efforts.

从一个种群扩散到另一种群对于稳定种群的生存和生存至关重要。远距离散布事件已在雄性老虎中广泛记录（Panthera tigris），但在雌性老虎中发生类似事件的情况鲜为人知。我们机会主义地记录了一次长距离疏散事件，最后以在印度中部为射电领亚成年雌性老虎建立了一个新的家庭范围而告终。我们分析了动物在散布事件和随后的范围内活动过程中的运动模式。平均最小距离和平均最小日位移分别为11.4 km和4.5 km。历时78天，总的线性位移和累积位移分别为99.1 km和340.2 km。使用布朗桥运动模型，我们表明老虎不是沿线性路径运动，而是表现出探索性运动。在这次扩散事件中，老虎穿越了2082 km ²的区域（95％UD），包括19个独特的“踏脚石”栖息地斑块。结合Ornstein-Uhlenbeck运动行为模型和自相关核密度估计模型，我们在扩散事件结束时确定了一个新建立的40.3 km ^2的原始范围。我们的结果描述了已知的最长的雌性老虎散布事件，突显了这种可能性，即雌性老虎的自然散布可以为物种范围扩展的辅助易位提供额外的选择。在当前情况下，这是有意义的，因为有效的原地保护工作，老虎的栖息地仍然零散，老虎的数量正在恢复。