circumpolar disjunction

例句：

1. 1. The circumpolar disjunction between the Arctic and Antarctica has significant environmental impacts.
   北极与南极之间的极地分割对环境产生了重大影响。
2. 2. The research on circumpolar disjunction is crucial for understanding climate change.
   研究极地分割对于理解气候变化至关重要。
3. 3. The circumpolar disjunction affects the migration patterns of many species, including polar bears.
   极地分割影响了包括北极熊在内的许多物种的迁徙模式。