Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.2015764118 |
Human arrival and landscape dynamics in the northern Bahamas | |
Patricia L. Fall; Peter J. van Hengstum; Lisa Lavold-Foote; Jeffrey P. Donnelly; Nancy A. Albury; Anne E. Tamalavage | |
2021-03-09 | |
发表期刊 | Proceedings of the National Academy of Sciences
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出版年 | 2021 |
英文摘要 | The first Caribbean settlers were Amerindians from South America. Great Abaco and Grand Bahama, the final islands colonized in the northernmost Bahamas, were inhabited by the Lucayans when Europeans arrived. The timing of Lucayan arrival in the northern Bahamas has been uncertain because direct archaeological evidence is limited. We document Lucayan arrival on Great Abaco Island through a detailed record of vegetation, fire, and landscape dynamics based on proxy data from Blackwood Sinkhole. From about 3,000 to 1,000 y ago, forests dominated by hardwoods and palms were resilient to the effects of hurricanes and cooling sea surface temperatures. The arrival of Lucayans by about 830 CE (2σ range: 720 to 920 CE) is demarcated by increased burning and followed by landscape disturbance and a time-transgressive shift from hardwoods and palms to the modern pine forest. Considering that Lucayan settlements in the southern Bahamian archipelago are dated to about 750 CE (2σ range: 600 to 900 CE), these results demonstrate that Lucayans spread rapidly through the archipelago in less than 100 y. Although precontact landscapes would have been influenced by storms and climatic trends, the most pronounced changes follow more directly from landscape burning and ecosystem shifts after Lucayan arrival. The pine forests of Abaco declined substantially between 1500 and 1670 CE, a period of increased regional hurricane activity, coupled with fires on an already human-impacted landscape. Any future intensification of hurricane activity in the tropical North Atlantic Ocean threatens the sustainability of modern pine forests in the northern Bahamas. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/316959 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Patricia L. Fall,Peter J. van Hengstum,Lisa Lavold-Foote,et al. Human arrival and landscape dynamics in the northern Bahamas[J]. Proceedings of the National Academy of Sciences,2021. |
APA | Patricia L. Fall,Peter J. van Hengstum,Lisa Lavold-Foote,Jeffrey P. Donnelly,Nancy A. Albury,&Anne E. Tamalavage.(2021).Human arrival and landscape dynamics in the northern Bahamas.Proceedings of the National Academy of Sciences. |
MLA | Patricia L. Fall,et al."Human arrival and landscape dynamics in the northern Bahamas".Proceedings of the National Academy of Sciences (2021). |
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