Ecology of the collapse of Rapa Nui society

Collapses of food producer societies are recurrent events in prehistory and have triggered a growing concern for identifying the underlying causes of convergences/divergences across cultures around the world. One of the most studied and used as a paradigmatic case is the population collapse of the R...

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Detalles Bibliográficos
Autores: Lima, M., Gayo, E. M., Latorre, C., Santoro, C. M., Estay, S. A., Cañellas Boltà, Núria, Margalef Marrasé, Olga, Giralt Romeu, Santiago, Sáez, Alberto, Pla Rabes, S., Stenseth, N. Chr.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/167500
Acceso en línea:https://hdl.handle.net/2445/167500
Access Level:acceso abierto
Palabra clave:Ecologia
Canvi climàtic
Pasqua (Xile : Illa)
Ecology
Climatic change
Easter Island (Chile)
Descripción
Sumario:Collapses of food producer societies are recurrent events in prehistory and have triggered a growing concern for identifying the underlying causes of convergences/divergences across cultures around the world. One of the most studied and used as a paradigmatic case is the population collapse of the Rapa Nui society. Here, we test different hypotheses about it by developing explicit population dynamic models that integrate feedbacks between climatic, demographic and ecological factors that underpinned the sociocultural trajectory of these people. We evaluate our model outputs against a reconstruction of past population size based on archaeological radiocarbon dates from the island. The resulting estimated demographic declines of the Rapa Nui people are linked to the long-term effects of climate change on the island's carrying capacity and, in turn, on the 'per-capita food supply'.