ArticlePloS one2020
Archaeological expansions in tropical South America during the late Holocene: Assessing the role of demic diffusion.
Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed.
- Maize-based polyculture, not monoculture, sustained precolonial societies in the Brazilian Cerrado.Science advances · 2026Article
- How climate, Indigenous people, and fire shaped Brazil's Araucaria Forests through the Late Holocene.Scientific reports · 2026Article
- Holocene man-occupied caves and transformed wetlands as facilitating factors for Leishmania infantum in South America.Memorias do Instituto Oswaldo Cruz · 2026Article
- Environmental constraints and diffusion shaped the global transition to food production.Scientific reports · 2025Article
- A multidisciplinary overview on the Tupi-speaking people expansion.American journal of biological anthropology · 2025Review
- Bayesian analyses of direct radiocarbon dates reveal geographic variations in the rate of rice farming dispersal in prehistoric Japan.Science advances · 2022Article
- Early to mid-Holocene human activity exerted gradual influences on Amazonian forest vegetation.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022Article
- A genomic perspective on South American human history.Genetics and molecular biology · 2022Article
- Late Holocene dietary and cultural variability on the Xingu River, Amazon Basin: A stable isotopic approach.PloS one · 2022Article
- Reassessing the role of climate change in the Tupi expansion (South America, 5000-500 BP).Journal of the Royal Society, Interface · 2021Article
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3 authors.
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Abstract
Human expansions motivated by the spread of farming are one of the most important processes that shaped cultural geographies during the Holocene. The best known example of this phenomenon is the Neolithic expansion in Europe, but parallels in other parts of the globe have recently come into focus. Here, we examine the expansion of four archaeological cultures of widespread distribution in lowland South America, most of which originated in or around the Amazon basin and spread during the late Holocene with the practice of tropical forest agriculture. We analyze spatial gradients in radiocarbon dates of each culture through space-time regressions, allowing us to establish the most likely geographical origin, time and speed of expansion. To further assess the feasibility of demic diffusion as the process behind the archaeological expansions in question, we employ agent-based simulations with demographic parameters derived from the ethnography of tropical forest farmers. We find that, while some expansions can be realistically modeled as demographic processes, others are not easily explainable in the same manner, which is possibly due to different processes driving their dispersal (e.g. cultural diffusion) or problematic/incomplete archaeological data.
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