| DOI: | 10.1016/j.quascirev.2018.12.005
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| Scopus记录号: | 2-s2.0-85058949481
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| 论文题名: | A human role in Andean megafaunal extinction? |
| 作者: | Raczka M.F.; Mosblech N.A.; Giosan L.; Valencia B.G.; Folcik A.M.; Kingston M.; Baskin S.; Bush M.B.
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| 刊名: | Quaternary Science Reviews
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| ISSN: | 2773791
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| 出版年: | 2019
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| 卷: | 205 | | 起始页码: | 154
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| 结束页码: | 165
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| 语种: | 英语
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| 英文关键词: | Andes
; Deglaciation
; Ecuador
; Extinction
; Fossil pollen
; Human arrival
; Pleistocene megafauna
; Sporormiella
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| Scopus关键词: | Charcoal
; Light extinction
; Andes
; Deglaciations
; Ecuador
; Fossil pollens
; Human arrival
; Megafauna
; Sporormiella
; Forestry
; abundance estimation
; anthropogenic effect
; deglaciation
; fauna
; fossil record
; fungus
; grassland
; human activity
; local extinction
; palynology
; Pleistocene
; sediment chemistry
; Andes
; Ecuador
; Preussia (ascomycete)
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| 英文摘要: | A new fossil pollen, Sporormiella, and sediment chemistry record from Lake Llaviucu, Ecuador, spanning the period from 16,280–9000 years Before Present, provides a high-resolution record of paleoecological change in the high Andes. The deglacial transition from super-páramo through páramo grasslands, to Andean forest is traced, with near-modern systems being established by c. 11,900 years ago. It is suggested that forest elements probably existed in microrefugial populations close to the ice front. Sporormiella is used as a proxy for megafaunal abundance, and its decline to background levels is inferred to indicate a local extinction event at c. 12,800 years ago. About 1800 years prior to the extinction, charcoal becomes a regular sedimentary component in this very wet valley. An early date for human activity in the valley is suggested, with the direct implication of humans in the extinction of the megafauna. © 2018 Elsevier Ltd |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/117398
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| Appears in Collections: | 气候变化与战略
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| Recommended Citation: | |
Raczka M.F.,Mosblech N.A.,Giosan L.,et al. A human role in Andean megafaunal extinction?[J]. Quaternary Science Reviews,2019-01-01,205
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