Specific occupation of penguins under Neoglacial cooling on the Scott Coast, Antarctica
Specific occupation of penguins under Neoglacial cooling on the Scott Coast, Antarctica
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南极洲斯科特海岸新冰期冷却下企鹅的特殊职业
DOI：
10.1016/j.quascirev.2021.107010
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发表时间：
2021-07
影响因子：
4
通讯作者：
Zhouqing Xie
中科院分区：
文献类型：
--
作者：
Lianjiao Yang;Yuesong Gao;Qibin Xu;Tao Huang;Wenqing Yang;Zhuding Chu;Yuhong Wang;Jianjun Wang;Liguang Sun;Zhouqing Xie
人们普遍认为，剧烈的气候变化会威胁企鹅的生态安全。之前的研究已经得出结论，位于罗斯海南部斯科特海岸的企鹅在2000年的∼中消失了；对这种消失提出了两种截然相反的假说：“变冷”和“变暖”。在这里，通过在邓洛普岛的沉积物剖面中识别企鹅鸟粪和遗骸，如蛋壳碎片、骨头和羽毛，我们发现这个岛在2000年∼BP时并没有被遗弃。此外，来自罗斯角的沉积学证据推断出∼1700yr BP的永久冰雪覆盖，这与斯科特海岸的新冰期冷却期一致。我们认为，由于海岸海冰和/或雪/冰积累的增加，新冰川的冷却导致了斯科特海岸企鹅群落的广泛放弃。然而，由于特定的地形或海洋条件使企鹅免受冰雪的影响，企鹅在特定的地点持续存在。
Drastic climate change is widely believed to threaten the ecological security of penguins. Previous studies have concluded that penguins on the Scott Coast, southern Ross Sea, disappeared from ∼2000 yr BP; two opposite hypotheses of “cooling” and “warming” have been proposed for the disappearance. Here, by identifying penguin guano and remains such as eggshell fragments, bones and feathers in a sediment profile from Dunlop Island, we found that this island was not abandoned at ∼2000 yr BP. In addition, sedimentological evidence from Cape Ross deduced the permanent snow/ice cover at ∼1700 yr BP, which is consistent with a Neoglacial cooling period on the Scott Coast. We suggest that Neoglacial cooling caused the widespread abandonment of penguin colonies on the Scott Coast, by the increased coastal sea ice and/or snow/ice accumulation. However, penguins persisted at particular localities due to specific topographical or oceanic conditions shielding them from the impacts of snow and ice.
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西福尔山加德纳岛过去 8500 年的企鹅种群动态
影响因子：
1.6
作者：
Huang, Tao;Sun, Liguang;Zhu, Renbin
通讯作者：
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影响因子：
12.1
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DOI：
10.1073/pnas.1000623107
发表时间：
2010-07-06
影响因子：
11.1
作者：
Dugger, Katie M.;Ainley, David G.;Ballard, Grant
通讯作者：
Ballard, Grant
影响因子：
3
作者：
Chien, Y. -C.;Hincke, M. T.;McKee, M. D.
通讯作者：
McKee, M. D.
影响因子：
8.3
作者：
Hogg, Alan G.;Hua, Quan;Zimmerman, Susan R. H.
通讯作者：
Zimmerman, Susan R. H.