globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2017.06.011
论文题名:
Major climatic influences on Yellowstone-region lake ecosystems suggested by synchronous transitions in Late-Glacial and early-Holocene diatom assemblages
作者: Lu Y.; Stone J.; Fritz S.C.; Westover K.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2017
语种: 英语
英文关键词: Alpine lakes ; Diatom ; Holocene ; Paleoecology ; Rocky Mountains ; Yellowstone National Park
英文摘要: Diatom assemblages that span the late-glacial and early-Holocene period were analyzed from three small lakes in the Greater Yellowstone region. The sites vary in surficial geology, elevation, vegetation, and precipitation seasonality, and these differences provide a tool to evaluate the importance of large-scale climatic change relative to localized catchment proces%s on aquatic ecosystem evolution. All assemblages underwent synchronous shifts in community structure in the intervals of 13.9-13.8, 13.2-13.1, 11.3-11.0 and 8.8-8.7. cal ka. The shift at 11.3-11.0. cal ka also is evident in other proxy records from these sites, such as pollen and charcoal, which suggests large-scale climatic influences on both aquatic and terrestrial ecosystems. Because the shifts in diatom assemblages are synchronous in lakes with variable geological settings and local precipitation patterns, we infer that large-scale climatic change was the principal driver of aquatic ecosystem evolution in this region during the late-Glacial and early Holocene periods. © 2017 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68073
Appears in Collections:过去全球变化的重建

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作者单位: Department of Earth and Atmospheric Sciences, University of Nebraska - Lincoln, Lincoln, NE, 68588, USA; Department of Earth and Environmental Systems, Indiana State University, Terre Haute, IN 47809, USA

Recommended Citation:
Lu Y.,Stone J.,Fritz S.C.,et al. Major climatic influences on Yellowstone-region lake ecosystems suggested by synchronous transitions in Late-Glacial and early-Holocene diatom assemblages[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2017-01-01
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