Since the environmental changes and geographic isolation,the species only exist in some habitats and formed isolated distribution,which resulted in community differentitation.
由于环境变迁和地理隔离,资源冷杉只残存于局部生境,形成孤立的残遗分布区。
参考来源 - 资源冷杉的濒危机制与种群保育研究·2,447,543篇论文数据,部分数据来源于NoteExpress
All this has combined to afflict Africa with the burden of geographic isolation.
所有这一切结合在一起使非洲饱受地理隔绝之苦。
Nor can we any longer fall back on our historical trump card of geographic isolation.
我们也不再能依靠天然屏障的历史王牌。
Geographic isolation also can proceed slowly, over great spans of time.
地理隔离也可能在很长一段时间内进展都非常缓慢。
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