Despite increasing interest in the relationship between culture transformation and abrupt climate change, their complexities are poorly understood. The local impact of global environmental fluctuations depends on multiple factors, and their effects on societal collapse are often assumed rather than demonstrated. One of the major changes in west European later prehistory was the Copper to Bronze Age transition in the early second millennium BC, contemporaneous with the 4.2 ky cal. BP event. This article offers a multi-dimensional insight into this historical process in the Iberian Peninsula from a multi-proxy and comparative perspective. Three study areas, representative of diverse ecological settings and historical trajectories, are compared. Using radiocarbon dates, 13 C discrimination (Δ 13 C) values on C3 plants, and high-resolution palynological records as
This paper assesses long-term trends in human activity across the Iberian Peninsula associated with the spread of agriculture. In order to improve our understanding of regional trajectories within the two-way and multiple-velocity model proposed by Isern et al. (Journal of Archaeological Method and Theory 21:447-460, 2014), we consider summed calibrated radiocarbon dates of a large audited dataset from across Iberia. To assess the role of different analytical units, two alternative peninsular divisions at different spatial resolutions were used: one, with three generalized study areas, and the second, with eight biogeographic regions. This comparison of spatiotemporal variability provides a more in-depth inter-regional reading of the Neolithic transition in Iberia than more generalized approaches. The southwest, Mediterranean coasts and interior portions of Iberia all showed significant demographic expansion with the onset of the Neolithic, as observed across Western Europe. By contrast, northern Iberia featured a close adherence to a null model of exponential growth and a longer continuation of hunter-gatherer strategies.
A multi-proxy palaeoenvironmental study (pollen, non-pollen palynomorphs, charcoal particles, mollusk macrofauna) of coastal marshland in Doñana National Park (southwestern Iberian Peninsula) was undertaken to trace environmental change, human activities related to woodland clearance, and past land-use during the mid-late Holocene (~ 5000-2800 cal BP). The results of this study are combined with archaeological data from the Copper and Bronze Ages and are subsequently compared with those of similar research carried out at the south-westernmost part of Europe with the aim of discerning regional differences or similarities. Our research has allowed us to recognize climate changes and four extreme wave events in the Guadalquivir paleoestuary, which might have contributed to both the cultural change that is observed in the archaeological record at the end of the Chalcolithic and the subsequent population decline during much of the Bronze Age.
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