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。

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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；

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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。

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Ikal Angelei, grew up around Lake Turkana, Kenya, home to a thriving ecosystem that supports hundreds of thousands of indigenous farmers, herders, and fishers.

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