condition of the native people of the Pampa and Patagonia. .... productivas, estableciendo además que los indios de la Pampa carecían de organiza- ...
asclepio.revistas.csic.es/index.php/asclepio/article/download/.../124 - Similares; In certain cases, the indigenous peoples developed entirely new species ..... The central and southern areas (Pampas and Patagonia) were dominated by .... or Fundação Nacional do Índio) was established by Cândido Rondon, ...
www.newworldencyclopedia.org/.../Indigenous_peoples_of_the_... - ; Diaguito–Calchaquí Culture: it is the most representative of the old aboriginal inhabitants of North–western Argentina and conforms the most complex and ...
www.argentina.gov.ar/argentina/.../paginas.dhtml?... - En caché - Similares

Me parece que sólo usamos aborigenies cuando nos referimos a los pueblos nativos de Australia. Los demás serían indigenous peoples/ native peoples/ native americans

personally I would put exactly the same in English as in Spanish because Spanish also has the word "indígena" but the text instead uses "indios", so there is no justification for writing "indigenous peoples" in English.

You asked what is the difference in meaning between indigenous peoples and aborigines. Semantically there is hardly any difference but there is a big difference in the usage because "aborigine" is not considered politically correct to use. This is explained here:

1) Used as adjectives, the terms aboriginal and indigenous share almost similar definition, that is pertaining to people originating and occurring in a specific area.

2) Although the two are synonymous, indigenous is preferred to aboriginal as the former has established acceptable definite criteria and is considered politically-correct, while the latter is deemed offensive for its attached meaning with colonization.

Read more: Difference Between Aboriginal and Indigenous | Difference Between | Aboriginal vs Indigenous http://www.differencebetween.net/miscellaneous/difference-be...