Partial migration occurs when a population of animals contains both migratory and resident individuals. Following anthropogenic changes, the population of Dead Sea Sparrows (Passer moabiticus) in Israel, experienced a rapid expansion of its breeding range, from the Dead Sea northward along the Great Rift Valley. Appropriate climatic conditions, increased water availability and suitable trees to construct their nests enabled the Dead Sea Sparrows to breed in new areas. However, during non-breeding seasons, the climatic conditions and food availability is less suitable in some of these new areas.

Dead Sea Sparrows colony, in an oasis in the Judean desert near the Dead Sea, was found to be mainly sedentary. However, recapture data, collected from numerous ringing projects along the Great Rift Valley, showed patterns of partial migration of northern populations. These include a unique altitudinal migration from above to below sea level. Female and juvenile Dead Sea Sparrows from northern populations migrate in autumn further south and in greater numbers than males and adults. This study sheds light on how the expansion of a passerine breeding range, due to anthropogenic activities, leads to the emergence of a variety of partial migration patterns.

当动物种群同时包含迁徙个体和常住个体时，就会发生部分迁徙。随着人为变化，以色列的死海麻雀 ( Passer moabiticus )种群经历了繁殖范围的迅速扩大，从死海沿东非大裂谷向北。适当的气候条件、增加的可用水量和适合筑巢的树木使死海麻雀能够在新的地区繁殖。然而，在非繁殖季节，其中一些新地区的气候条件和食物供应不太适合。

死海麻雀群落位于死海附近朱迪亚沙漠的一片绿洲中，主要是久坐不动的。然而，从大裂谷沿线的众多环形项目收集的重新捕获数据显示了北部人口的部分迁移模式。其中包括从海平面上方到海平面以下的独特的海拔迁移。来自北方种群的雌性和幼年死海麻雀在秋季向南迁徙，数量多于雄性和成体。这项研究揭示了由于人为活动导致雀类繁殖范围的扩大如何导致各种部分迁徙模式的出现。