海洋生态系统的结构和彼此交互随着每一次动物区系的改变而改变(see Section 4.2.1)。
In the Marine realm the structure of ecosystems and interactions within them change with each faunal change (see Section 4.2.1).
各大陆的动物区系既有差别又有联系，构造运动曾是大陆联接和分离的原动力，动物通过“陆桥”的迁移实现了各大陆之间的交流。
The tectogensis is themotive force of the continental connection and separation, and animals migration through the landbridgesbrings about interchanges between the continents.
在中山温凉性针阔叶混交林内海拔约3 100 m 处是该山两大动物区系分异的界线。
The elevation of 3100 m (in Cooltemperate coniferous and broadleaf mixed forest) was the dividing line between the two realms in Cangshan Mountain.
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