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- W2085276042 abstract "This study offers a few thoughts about a possible prehistoric anthropogenic effect on the expansion of Araucaria angustifolia during the late Holocene based on overlay and analysis of archeological, geographical, palynological and botanical data. Archeological research reveals that grou ps of pottery-producing hunter-gatherers belonging to the Je linguistic stock. These are archeologically defined as the Taquara/Itarare Tradition, and occupied the highlands in southern Brazil from 2000 years BP until 200 years BP. Major resource uses regarding forest vegetation were hunting, Araucaria nuts seed harvesting (considered an essential component in the diet) and agroforestry management. Their settlements, known as casas subterrâneas (pit houses), were distributed according to relief and geography under the domain of Araucaria forest. A strong expansion of Araucaria angustifolia in the late Holocene is recorded by various palynological studies as occurring after 1,500 years BP in Parana, 1,000 years BP in Santa Catarina and 1,140 years BP in Rio Grande do Sul over areas near archaeological settlements. These data deserve some attention. Furthermore, botanical sources indicate that Araucaria angustifolia need a dispersing factor, including birds, animals and humans. In spite of climate conditions being considered one of the major causes of increase, the possibility of contribution by pottery-producing hunter-gatherers of the Taquara/Itarare Tradition in seed dispersal by harvesting of seeds, and possible management and planting of this species. These sites are considered important elements as indicators of Araucaria forest areas in landscape reconstruction studies. RESUMO - Este trabalho apresenta algumas reflexoes sobre a possivel influencia antropogenica pre-historica na expansao da Araucaria angustifolia durante o Holoceno tardio, a partir da analise e do cruzamento de dados arqueologicos, geograficos, palinologicos e botânicos. Estudos arqueologicos revelaram que grupos de cacadores e coletores com cerâmica, pertencentes ao tronco cultural Je, definidos arqueologicamente como Tradicao Taquara/Itarare ocuparam a regiao do planalto sul brasileiro desde 2000 anos A.P. ate, aproximadamente, 200 anos A.P. A caca de animais, a coleta de pinhao, considerado item basico da dieta vegetal, e o manejo agroflorestal, constituiam os principais recursos utilizados, relacionados a floresta. Seus assentamentos, conhecidos como casas subterrâneas, estao distribuidos altimetrica e geograficamente segundo o dominio da Floresta Ombrofila Mista. A expansao de Araucaria angustifolia no Holoceno tardio e fortemente assinalada em varios trabalhos palinologicos, depois de 1500 anos A.P. no Parana, 1000 anos A.P. em Santa Catarina e 1140 anos A.P. no Rio Grande do Sul, em areas proximas aos assentamentos arqueologicos. Esses dados chamam a atencao. Alem disso, fontes botânicas indicam que Araucaria angustifolia necessita de um agente dispersor, citando aves, animais e o proprio homem. Apesar das condicoes climaticas serem apontadas como a principal causa desse aumento, discute-se, tambem, a possibilidade de uma contribuicao da acao dos grupos de cacadores-coletores com cerâmica da Tradicao Taquara/Itarare na dispersao da especie, pela coleta do pinhao, manejo e o possivel plantio da especie. Estes sitios constituem, ainda, elementos importantes em estudos de reconstituicao da paisagem como indicadores de areas de floresta com araucaria. Palavras-chave: Ocupacao pre-historica, expansao, Araucaria angustifolia, planalto sul-brasileiro." @default.
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- W2085276042 date "2006-04-30" @default.
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- W2085276042 title "Possible prehistoric anthropogenic effect on Araucaria angustifolia (Bert.) O. Kuntze expansion during the late Holocene" @default.
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- W2085276042 doi "https://doi.org/10.4072/rbp.2006.1.12" @default.
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