Did pre-Columbian populations of the Amazonian biome reach carrying capacity during the Late Holocene?

Amazon-wide radiocarbon proxy fits logistic growth to carrying capacity before colonization

what the source states

"…our analyses document that the growth of pre-Columbian human population over the 1700 years prior to European colonization adheres to a logistic model of demographic growth. This suggests that, at an aggregate level, these pre-Columbian populations had potentially reached carrying capacity (however high) before the onset of European colonization." The terminal proxy decline "is likely to be an outcome of archaeological sampling biases, compounded by demographic decline and dispersal as Europeans enter the region."

limitations

• SPDs are proxies for relative population change with stated biases — an aggregate signal, not a census.