The phrase "local tribes" refers to groups of people who live in a specific area and share common customs, traditions, and often a common ancestry. They form their own communities and ways of life within their local region. Full definition
Such efforts required the recording and description of many languages, which would otherwise have remained the possession of local tribes. (religion-online.org)
Meet with local tribes and learn more about the region's architecture and way of life. (lonelyplanet.com)
What I hear you saying is that, when vision becomes focused inward on a particular local tribe, it loses this sense of a common purpose shared with all humanity. (nakedpastor.com)