Fishing intensification as response to Late Holocene socio-ecological instability in southeastern South America
| Autor: | Fernanda Mara Borba, Alice Toso, Adriana Maria Pereira dos Santos, Lucas de Melo Reis Bueno, Simon-Pierre Gilson, Murilo Quintans Ribeiro Bastos, André Carlo Colonese, Dione da Rocha Bandeira, Christine Conlan, Thiago Fossile, Krista McGrath, Jessica Ferreira, Paulo César Fonseca Giannini, Ellen Hallingstad |
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| Rok vydání: | 2021 |
| Předmět: |
010506 paleontology
0303 health sciences Multidisciplinary Ecology Molecular biology Science Biological techniques Fishing 01 natural sciences Article Socio ecological Fishery 03 medical and health sciences Geography Medicine ISÓTOPOS ESTÁVEIS 14. Life underwater Biomarkers Holocene 030304 developmental biology 0105 earth and related environmental sciences |
| Zdroj: | Scientific Reports Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP Scientific Reports, Vol 11, Iss 1, Pp 1-14 (2021) |
| Popis: | The emergence of plant-based economies have dominated evolutionary models of Middle and Late Holocene pre-Columbian societies. Comparatively, the use of aquatic resources and the circumstances for intensifying their exploitation, have received little attention. Here we reviewed the stable carbon and nitrogen isotope composition of 390 human individuals from Middle and Late Holocene coastal sambaquis, a long-lasting shell mound culture that flourished for nearly 7000 years along the Atlantic Forest coast of Brazil. Using a newly generated faunal isotopic baseline and Bayesian Isotope Mixing Models we quantified the relative contribution of marine resources to the diet of some of these groups. Through the analysis of more than 400 radiocarbon dates we show that fishing sustained large and resilient populations during most of the Late Holocene. A sharp decline was observed in the chronology of non-ceramic sites from ca. 2200 years ago, possibly reflecting the dissolution of several nucleated groups into smaller social units, coinciding with substantial changes in coastal environments. The adoption of ceramics from ca. 1200 years ago is marked by innovation and intensification of fishing practices, in a context of increasing social and ecological instability in the Late Holocene. |
| Databáze: | OpenAIRE |
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