Indigenous knowledge systems have doubtless eroded in the decades since the Arem had to abandon their traditional ways of life.

自are m人不得不背弃他们传统的生活方式以来，本地知识体系多半在数十年间已被侵蚀殆尽。

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Local and indigenous knowledge systems and environmental management practices provide valuable insight and tools for tackling ecological challenges.

UNESCO: Indigenous Media, Empowering Indigenous Voices

UNESCO, through its Local and Indigenous Knowledge Systems (LINKS) Programme, is working to bring recognition to this issue, and to demonstrate the link between cultural and biological diversity.

UNESCO: Indigenous Peoples

This is part of the problem, according to the Medical Research Council, which recently established the Indigenous Knowledge Systems Unit to help write policies that would benefit those in this sector.

BBC: Witnessing a South African healer at work