Dataset Information

Human responses to climate and ecosystem change in ancient Arabia.

ABSTRACT: Recent interdisciplinary archaeological and paleoenvironmental research in the Arabian peninsula is transforming our understanding of ancient human societies in their ecological contexts. Hypotheses about the cultural and demographic impacts of a series of droughts have primarily been developed from the environmental and archaeological records of southeastern Arabia. Here we examine these human-environment interactions by integrating ongoing research from northern Arabia. While droughts and extreme environmental variability in the Holocene had significant impacts on human societies, responses varied across space and time and included mobility at various scales, as well as diverse social, economic and cultural adaptations, such as the management of water resources, the introduction of pastoral lifeways, and the construction of diverse types of stone structures. The long-term story of human societies in Arabia is one of resilience in the face of climate change, yet future challenges include rising temperatures and flash flooding. The history of human responses to climatic and ecosystem changes in Arabia can provide important lessons for a planet facing catastrophic global warming and environmental change.

SUBMITTER: Petraglia MD

PROVIDER: S-EPMC7165439 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature

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Publications

Human responses to climate and ecosystem change in ancient Arabia.

Petraglia Michael D MD Groucutt Huw S HS Guagnin Maria M Breeze Paul S PS Boivin Nicole N

Proceedings of the National Academy of Sciences of the United States of America 20200401 15

Recent interdisciplinary archaeological and paleoenvironmental research in the Arabian peninsula is transforming our understanding of ancient human societies in their ecological contexts. Hypotheses about the cultural and demographic impacts of a series of droughts have primarily been developed from the environmental and archaeological records of southeastern Arabia. Here we examine these human-environment interactions by integrating ongoing research from northern Arabia. While droughts and extr ...[more]

PMID: 32284422

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Project description:Following a predicted decline in water resources in the Mediterranean Basin, we used reaction-diffusion equations to gain a better understanding of expected changes in properties of vegetation patterns that evolve along the rainfall transition between semi-arid and arid rainfall regions. Two types of scenarios were investigated: the first, a discrete scenario, where the potential consequences of climate change are represented by patterns evolving at discrete rainfall levels along a rainfall gradient. This scenario concerns space-for-time substitutions characteristic of the rainfall gradient hypothesis. The second, a continuous scenario, represents explicitly the effect of rainfall decline on patterns which evolved at different rainfall levels along the rainfall gradient prior to the climate change. The eccentricity of patterns that emerge through these two scenarios was found to decrease with decreasing rainfall, while their solidity increased. Due to their inverse modes of change, their ratio was found to be a highly sensitive indicator for pattern response to rainfall decline. An eccentricity ratio versus rainfall (ER:R) line was generalized from the results of the discrete experiment, where ERs above this line represent developed (recovered) patterns and ERs below this line represent degraded patterns. For the rainfall range of 1.2 to 0.8 mm/day, the continuous rainfall decline experiment with ERs that lie above the ER:R line, yielded patterns less affected by rainfall decline than would be expected according to the discrete representation of ecosystems' response. Thus, for this range, space-for-time substitution represents an overestimation of the consequences of the expected rainfall decline. For rainfall levels below 0.8 mm/day, eccentricity ratios from the discrete and continuous experiments practically converge to the same trend of pattern change along the ER:R line. Thus, the rainfall gradient hypothesis may be valid for regions characterized by this important rainfall range, which typically include desert fringe ecosystems.

Dataset Information

Human responses to climate and ecosystem change in ancient Arabia.

Publications

Human responses to climate and ecosystem change in ancient Arabia.

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