The Guaporé-Mamoré language area hosts a large amount of linguistic diversity; however, its history of contact remains understudied. This thesis aims to shed light on the contact patterns in the...Show moreThe Guaporé-Mamoré language area hosts a large amount of linguistic diversity; however, its history of contact remains understudied. This thesis aims to shed light on the contact patterns in the region through a study which compares languages in area with regards to their word stress and phonological tone. For this aim, a sample of 40 languages belonging to the area, plus 9 control languages, was collected which gathered the characteristics of their word stress and tone systems. The results show that languages in the Guaporé-Mamoré area tend to prefer right-bound, fixed stress, although only the languages south-west of the Guaporé river, corresponding to the Mojo-Chiquito culture area, are significantly different from the control languages (p = .003) in this regard. The results thus imply different levels of contact in sub-regions of the proposed area. Further research is needed into the commonalities and differences between languages in the region, as well as documentation of the languages.Show less