What often happened when settlers or Europeans traded with one tribe but not another?

Conflicts with other tribes.

Explanation:

When Settlers traded with one tribe only, the gain in prosperity that is obtained by leveraging on the local resources will only be felt by that one tribes.

The other tribes felt the deteriorating resources (since they live within the same region), but do not receive the same benefit in return as that one tribes. As a result, this will gradually build up resentment towards that one tribes or the European settlers. This what might lead to wars/conflicts.

ne pare rău, dar când mi-am căutat întrebarea, doar avioanele au apărut .. deci, ar putea fi răspunsul, sau ar putea fi baloane cu aer cald, deoarece acestea pot conta și ca ambarcațiunile de aer, dar nu sunt complet sigur de asta. a fost doar o presupunere, sper că am ajutat, îmi pare rău dacă nu am făcut-o. de asemenea, folosesc traducerea google, pentru a traduce ceea ce spun în engleză, așa că îmi pare rău dacă gramatica sau chiar limba nu este corectă

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.