It threatens the indigenous ecosystem and the species being brought in May not be able to survive.
这会威胁当地生态系统，而且从其他地方引进的物种可能无法存活。
Loggers build roads, allowing farmers and hunters to enter, further crowding the indigenous people and destroying the delicate ecosystem.
伐木工修建公路，允许农民和猎人进入森林，聚集土著人摧毁村弱的生态环境；
A native (indigenous) species is one that occurs in a particular region, ecosystem, and habitat without direct OR indirect human actions.
本土(土生土长)种类就是在没有直接或间接人类活动的情况下，在一特定地区、生态系统和栖息地自然就有的种类。
As the natural ecosystem, urban natural reserved area is the last habitat for indigenous species, which is different from natural conservation and urban greening.
城市自然保留地作为城市中残存的自然生态系统，是维持乡土物种生存的最后生境，其保护具有极其重要的意义。
As the natural ecosystem, urban natural reserved area is the last habitat for indigenous species, which is different from natural conservation and urban greening.
城市自然保留地作为城市中残存的自然生态系统，是维持乡土物种生存的最后生境，其保护具有极其重要的意义。
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