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<br>We conducted 36 translocations of 1851 individuals of the generalist, flightless grasshopper <i>Vandiemenella viatica </i>across urban Melbourne, where 93% of its original habitat has been lost. We aimed to understand characteristics essential for grasshopper persistence and to investigate detection, dispersal, and habitat suitability throughout its active period, providing a roadmap to improve insect translocation success in urban settings using revegetated sites and small remnant habitats. We also measured movement and detection probability after one week in short-term trials. Grasshopper sex and colour morph did not influence the probability of detection. There was no evidence of directional movement by females and males in one-week short-term trials nor the F1 generation one year after translocation when grasshoppers were found in 28 out of 36 translocated sites. We found a significant effect of ground temperature on detection probability only in Winter surveys. Abundance and presence/absence data were best explained by graminoid cover and number of plant species. Our findings suggest that wingless grasshopper translocations in small suitable habitat patches in urban areas are feasible, allowing low-vagility invertebrates to restore biodiversity and ecological services.

本研究在原生栖息地丧失率达93%的墨尔本城市区域内，针对广食性无翅蝗虫（*Vandiemenella viatica*）开展了36次种群迁移试验，累计转移1851头个体。本研究旨在明确该蝗虫种群存续所需的关键特征，并在其活动期内开展检测、扩散与栖息地适宜性相关研究，同时为利用植被恢复场地与小型残留栖息地提升城市环境中昆虫迁移成功率提供实践指导方案。本研究还在短期试验中测定了蝗虫移置一周后的移动行为与检测概率，结果显示蝗虫的性别与色型均不会对其被检测概率产生影响。在为期一周的短期试验中，以及迁移一年后对F1代的观测中，均未发现雌雄蝗虫存在定向移动的迹象；本次试验的36个迁移样点中，共有28个样点成功监测到蝗虫种群。仅在冬季的调查中，地表温度对蝗虫检测概率存在显著影响。蝗虫种群丰度与存在/缺失数据的最优解释变量为禾草类植物盖度与植物物种数。本研究结果表明，在城市区域的小型适宜生境斑块中开展无翅蝗虫种群迁移具备可行性，可为低扩散能力无脊椎动物的生物多样性恢复与生态系统服务提升提供可行路径。