Human Biology Open Access Pre-Prints

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A pattern of population crash and rapid recovery is a common feature of the pacification and settlement experience of the Indigenous Peoples of tropical South America. In spite of the obvious importance of these events to the demographic and anthropological sciences as a whole, as well as their significant practical implications, little is known about the microdemographic determinants of these paired phenomena. Utilizing methods of asymptotic and stochastic demographic analysis, we reconstruct the microdemographic drivers of this history among one Indigenous population: the Northern Ache of Eastern Paraguay. We then explore the implications of these relationships for understanding the overall demographic turnaround being observed within similar groups as well as for the future trajectory of the Northern Ache in particular.