气候变化领域集成服务门户(CCPortal): Central American climate and microrefugia: A view from the last interglacial

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DOI	10.1016/j.quascirev.2018.12.021
	Central American climate and microrefugia: A view from the last interglacial
	Cárdenes-Sandí G.M.; Shadik C.R.; Correa-Metrio A.; Gosling W.D.; Cheddadi R.; Bush M.B.
发表日期	2019
ISSN	0277-3791
起始页码	224
结束页码	233
卷号	205
英文摘要	The Last Interglacial (c. 128,000 to 115,000 years ago) was the last time when global temperatures may have been higher than those of the Holocene, but little is known about vegetation change or paleoclimate during that period in Central America. A new fossil pollen record from the lowland setting of El Valle, Panama, spanned the period from 137,000 to 98,000 years ago. We used multivariate analysis of modern and fossil pollen samples to provide the first regional quantification of Last Interglacial temperature and precipitation change and found mean annual temperatures were c. 1–2 °C warmer than modern, while precipitation was mostly similar to modern. The montane genus Quercus was intermittently present throughout the interglacial period, leading to the inference that this dispersal-limited taxon was surviving in microrefugia. Both charcoal and the early successional genus Cecropia were noticeably rare in the last interglacial compared with the Holocene. The modern absence of Quercus from Central Panama does not appear to be the product of interglacial warming, but rather a result of dry conditions in the late Holocene and human activity. It is suggested that humans greatly increased fire frequency, thereby favoring Cecropia and eliminating Quercus from the lower portion of its elevational range. © 2018 Elsevier Ltd
英文关键词	Central America; Climate change; Fossil charcoal; Fossil pollen; Interglacial; Microrefugia; Paleoecology; Quercus
语种	英语
scopus关键词	Charcoal; Multivariant analysis; Central America; Fossil pollens; Interglacial; Microrefugia; Paleoecology; Quercus; Climate change; charcoal; climate variation; deciduous tree; dispersal; fossil record; Holocene; Last Interglacial; multivariate analysis; paleoecology; pollen; precipitation (climatology); refuge; regional climate; temperature; Central America; Cocle; El Valle; Panama [Central America]; Cecropia; Quercus
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/152032
作者单位	Institute for Global Ecology, Florida Institute of Technology, 150 West University Boulevard, Melbourne, FL, United States; Instituto de Geología, Universidad Nacional Autónoma de México, Mexico City, DF 04510, Mexico; Department of Ecosystem & Landscape Dynamics, Institute for Biodiversity & Ecosystem Dynamics (IBED), University of Amsterdam, Amsterdam, Netherlands; ISEM, Université de Montpellier, Centre National de la Recherche Scientifique, IRD, EPHE, Montpellier, France
推荐引用方式 GB/T 7714	Cárdenes-Sandí G.M.,Shadik C.R.,Correa-Metrio A.,et al. Central American climate and microrefugia: A view from the last interglacial[J],2019,205.
APA	Cárdenes-Sandí G.M.,Shadik C.R.,Correa-Metrio A.,Gosling W.D.,Cheddadi R.,&Bush M.B..(2019).Central American climate and microrefugia: A view from the last interglacial.Quaternary Science Reviews,205.
MLA	Cárdenes-Sandí G.M.,et al."Central American climate and microrefugia: A view from the last interglacial".Quaternary Science Reviews 205(2019).