气候变化领域集成服务门户(CCPortal): Human resilience to Holocene climate changes inferred from rodent middens in drylands of northwestern Patagonia (Argentina)

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DOI	10.1016/j.palaeo.2020.109894
	Human resilience to Holocene climate changes inferred from rodent middens in drylands of northwestern Patagonia (Argentina)
	Llano C.; de Porras M.E.; Barberena R.; Timpson A.; Beltrame M.O.; Marsh E.J.
发表日期	2020
ISSN	0031-0182
卷号	557
英文摘要	We reconstruct the Holocene vegetation, climate, and archaeological history for drylands of northwestern Patagonia, Argentina, based on multiproxy analysis (plant macrofossil, pollen, and parasites) of rodent middens integrated with a database of 14C dates associated with human occupations. The local scale corresponds to the Huenul paleoecological and archaeological locality, emplaced in north-western Patagonia (Neuquén Province, Argentina). The rodent midden record from the Huenul series reflects subtle vegetation changes driven by climatic variability at millennial timescale. Drier than present environmental conditions prevailed during the early Holocene (10,500–9400 cal yr BP), peaking during the mid-Holocene (9200–5500 cal yr BP), when wetter than present conditions established during the late Holocene (4400–2500 cal yr BP). These environmental and climatic dynamics agree with other paleoclimatic records from northern Patagonia, suggesting the winter precipitation dynamics related to the Southern Westerlies as a common driver. The diachronic distribution of anthropogenic radiocarbon dates from the western area of the South American Arid Diagonal between 32°–40°S conforms to a fitted exponential model of steady background population growth, not suggesting significant demographic changes that may have been the result of the impact of climate change. This record indicates that these human populations coped successfully with aridity, particularly during the mid-Holocene. These findings reinforce the need to integrate multi-scalar interdisciplinary analyses to assess the impact of climate change in human societies. © 2020 Elsevier B.V.
英文关键词	Drylands; Holocene; Human societies; Northwestern Patagonia; Paleoclimate; Rodent middens
语种	英语
scopus关键词	arid region; carbon isotope; climate variation; environmental conditions; Holocene; paleoclimate; paleoecology; population growth; proxy climate record; radiocarbon dating; reconstruction; rodent; vegetation dynamics; Argentina; Neuquen; Patagonia; Rodentia
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150365
作者单位	Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Ciencias Aplicadas a la Industria, Universidad Nacional de Cuyo, Bernardo de Irigoyen 375, San Rafael, Mendoza 5600, Argentina; Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA), CCT Mendoza - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Ruiz Leal, Mendoza, Argentina; Instituto Interdisciplinario de Ciencias Básicas (ICB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Cuyo, Facultad de Ciencias Exactas y Naturales, Laboratorio de Paleoecología Humana, Padre Jorge Contreras 1300, Mendoza, Argentina; Facultad de Filosofía y Letras, Universidad Nacional de Cuyo, Mendoza, Argentina; Department of Genetics, Evolution and Environment, University College LondonWC1E 6BT, United Kingdom; Instituto de Investigaciones en Producción, Sanidad y Ambiente (IIPROSAM), CCT Mar del Plata- Consejo Nacional de Investigaciones Científicas y...
推荐引用方式 GB/T 7714	Llano C.,de Porras M.E.,Barberena R.,et al. Human resilience to Holocene climate changes inferred from rodent middens in drylands of northwestern Patagonia (Argentina)[J],2020,557.
APA	Llano C.,de Porras M.E.,Barberena R.,Timpson A.,Beltrame M.O.,&Marsh E.J..(2020).Human resilience to Holocene climate changes inferred from rodent middens in drylands of northwestern Patagonia (Argentina).Palaeogeography, Palaeoclimatology, Palaeoecology,557.
MLA	Llano C.,et al."Human resilience to Holocene climate changes inferred from rodent middens in drylands of northwestern Patagonia (Argentina)".Palaeogeography, Palaeoclimatology, Palaeoecology 557(2020).