气候变化领域集成服务门户(CCPortal): Large variation in availability of Maya food plant sources during ancient droughts

CCPortal

DOI	10.1073/pnas.2115657118
	Large variation in availability of Maya food plant sources during ancient droughts
	Fedick S.L.; Santiago L.S.
发表日期	2022
ISSN	0027-8424
卷号	119 期号:1
英文摘要	Paleoclimatic evidence indicating a series of droughts in the Yucatan Peninsula during the Terminal Classic period suggests that climate change may have contributed to the disruption or collapse of Classic Maya polities. Although climate change cannot fully account for the multifaceted, political turmoil of the period, it is clear that droughts of strong magnitude could have limited food availability, potentially causing famine, migration, and societal decline. Maize was undoubtedly an important staple food of the ancient Maya, but a complete analysis of other food resources that would have been available during drought remains unresolved. Here, we assess drought resistance of all 497 indigenous food plant species documented in ethnographic, ethnobotanical, and botanical studies as having been used by the lowland Maya and classify the availability of these plant species and their edible components under various drought scenarios. Our analysis indicates availability of 83% of food plant species in short-term drought, but this percentage drops to 22% of food plant species available in moderate drought up to 1 y. During extreme drought, lasting several years, our analysis indicates availability of 11% of food plant species. Our results demonstrate a greater diversity of food sources beyond maize that would have been available to the Maya during climate disruption of the Terminal Classic period than has been previously acknowledged. While drought would have necessitated shifts in dietary patterns, the range of physiological drought responses for the available food plants would have allowed a continuing food supply under all but the most dire conditions. © 2022 National Academy of Sciences. All rights reserved.
英文关键词	Agriculture; Drought; Ethnobotany; Maya; Sustainability
语种	英语
scopus关键词	agriculture; article; catering service; climate; dietary pattern; drought resistance; ethnobotany; food crop; maize; nonhuman
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250895
作者单位	Department of Anthropology, University of California, Riverside, CA 92521, United States; Department of Botany and Plant Sciences, University of California, Riverside, CA 92521, United States; Smithsonian Tropical Research Institute, Apartado0843-03092, Panama
推荐引用方式 GB/T 7714	Fedick S.L.,Santiago L.S.. Large variation in availability of Maya food plant sources during ancient droughts[J],2022,119(1).
APA	Fedick S.L.,&Santiago L.S..(2022).Large variation in availability of Maya food plant sources during ancient droughts.Proceedings of the National Academy of Sciences of the United States of America,119(1).
MLA	Fedick S.L.,et al."Large variation in availability of Maya food plant sources during ancient droughts".Proceedings of the National Academy of Sciences of the United States of America 119.1(2022).