The Arctic is changing rapidly, introducing new challenges and opportunities for animals. Rising air temperatures are driving dramatic shifts in habitat quality and availability, including increased shrub abundance, reduced pond area, and reduced springtime snow cover (Hinzman et al. 2005). In some cases, these changes have net positive effects for particular species, as exemplified by northward range expansions of moose and beavers following shrubification (Tape et al. 2016, 2018).

中文翻译：

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永久冻土冰洞：一个未被认识的北极野生动物微栖息地

北极正在迅速变化，为动物带来了新的挑战和机遇。气温上升正在推动栖息地质量和可用性发生巨大变化，包括灌木丰度增加、池塘面积减少和春季积雪减少（Hinzman 等人，2005 年）。在某些情况下，这些变化对特定物种具有净积极影响，例如灌木化后驼鹿和海狸向北扩张（Tape et al. 2016, 2018）。