由于全球快速变暖，许多在北极繁殖的动物受到当地栖息地缩减和物候环境改变的威胁。迁徙物种则更需面临栖息地破坏、干旱、屏障和过度开发等额外的人为压力。它们只有调整自身迁徙、繁殖时间和活动范围才能生存下来。在这里，我们记录了粉脚雁（Anser brachyrhynchus）在俄罗斯新地岛（Novaya Zemlya）的一个不连续繁殖种群的出现以及一条新的迁徙路线。这个繁殖种群与原产地斯瓦尔巴德群岛的原始种群相隔近1000公里。由于种群本身的增长及来自原路线的持续移民，新繁殖种群的数量已经增长到3,000-4,000只，而最近的温暖气候促进了这一拓殖过程。我们认为，雁类的社会行为导致迁徙行为在同种和混群的不同种之间进行文化传播，是这种快速发展的关键，也是在快速变化的世界中实现生态救援的一种机制。

Many Arctic-breeding animals are at risk from local extirpation associated with habitat constriction and alterations in phenology in their Arctic environment as a result of rapid global warming. Migratory species face additional increasing anthropogenic pressures along their migratory routes such as habitat destruction, droughts, creation of barriers, and overexploitation. Such species can only persist if they adjust their migration, timing of breeding, and range. Here, we document both the abrupt (~10 years) formation of a new migration route and a disjunct breeding population of the pink-footed goose (Anser brachyrhynchus) on Novaya Zemlya, Russia, almost 1,000 km away from the original breeding grounds in Svalbard. The population has grown to 3,000–4,000 birds, explained by intrinsic growth and continued immigration from the original route. The colonization was enabled by recent warming on Novaya Zemlya. We propose that social behavior of geese, resulting in cultural transmission of migration behavior among conspecifics as well as in mixed-species flocks, is key to this fast development and acts as a mechanism enabling ecological rescue in a rapidly changing world.