globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2019.04.026
WOS记录号: WOS:000471738800003
论文题名:
Enhanced westerlies drove penguin movement at 1000 yr BP on Ardley Island, west Antarctic Peninsula
作者: Yang, Lianjiao; Gao, Yuesong; Sun, Liguang1; Xie, Zhouqing1; Yang, Wenqing; Chu, Zhuding; Wang, Yuhong; Xu, Qibin
通讯作者: Sun, Liguang ; Xie, Zhouqing
刊名: QUATERNARY SCIENCE REVIEWS
ISSN: 0277-3791
出版年: 2019
卷: 214, 页码:44-53
语种: 英语
英文关键词: Penguin ; Westerly winds ; SAM ; Topography ; Snow accumulation ; Ardley island
WOS关键词: DICHLORO-DIPHENYL-TRICHLOROETHANES ; SOUTHERN ANNULAR MODE ; LARGE-SCALE CLIMATE ; HOLOCENE CLIMATE ; LAKE-SEDIMENTS ; ROSS SEA ; MARINE ; RECORD ; ICE ; VARIABILITY
WOS学科分类: Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向: Physical Geography ; Geology
英文摘要:

Understanding responses by penguins to climate change in Antarctica is often complicated by other factors including microclimate and landscape effects. Here, we analyze an ornithogenic sediment profile to reconstruct penguin occupation history on the eastern side of Ardley Island, west Antarctic Peninsula, and synthesize the results from various studies on Ardley Island in the past 20 years. Penguins have inhabited the eastern side of this island since about 900 yr BP, with populations significantly increasing from similar to 500 yr BR On the western side, delineated by the Ardley Ridge Line, penguins began to abandon nest or molt sites at similar to 1000 yr BP. By the time of 500 yr BP, the abandonment and population decline became a common tendency on the west side. This shift in occupation areas was likely driven by local microclimate and a change in wind patterns causing more snow to accumulate on the west side of the island. We found a linkage between this penguin movement and the Southern Westerly Winds, which became stronger at similar to 1000 yr BP and impacted local conditions at Ardley Island, likely induced by more positive Southern Annular Mode (SAM). These results indicate that island topography, wind and snow patterns, combined with large-scale climate forcing can be just as important in determining penguin distribution as temperature and other environmental factors. This study provides a new perspective for investigating the possible impact of microclimate and site topography on penguin behavior. (C) 2019 Elsevier Ltd. All rights reserved.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/140376
Appears in Collections:过去全球变化的重建

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作者单位: 1.Univ Sci & Technol China, Sch Earth & Space Sci, Inst Polar Environm, Hefei 230026, Anhui, Peoples R China
2.Univ Sci & Technol China, Sch Earth & Space Sci, Anhui Key Lab Polar Environm & Global Change, Hefei 230026, Anhui, Peoples R China

Recommended Citation:
Yang, Lianjiao,Gao, Yuesong,Sun, Liguang,et al. Enhanced westerlies drove penguin movement at 1000 yr BP on Ardley Island, west Antarctic Peninsula[J]. QUATERNARY SCIENCE REVIEWS,2019-01-01,214:44-53
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