The occupation history of the longest-dwelling Adélie penguin colony reflects Holocene climatic and environmental changes in the Ross Sea, Antarctica
The occupation history of the longest-dwelling Adélie penguin colony reflects Holocene climatic and environmental changes in the Ross Sea, Antarctica
复制标题
居住时间最长的阿德利企鹅群的占领历史反映了南极洲罗斯海的全新世气候和环境变化
DOI：
10.1016/j.quascirev.2022.107494
复制
发表时间：
2022-05
影响因子：
4
通讯作者：
Carlo Baroni
中科院分区：
文献类型：
--
作者：
Yuesong Gao;Maria Cristina Salvatore;Qibin Xu;Lianjiao Yang;Liguang Sun;Zhouqing Xie;Carlo Baroni
由于气候变化，企鹅预计将面临失去繁殖栖息地的风险。企鹅群体分布的变化表明，一些企鹅群体比其他群体更能抵御环境变化，在不利的气候条件下作为冰川后的初始栖息地或避难所。在这里，我们从南极洲存留时间最长的阿德利企鹅群落之一的不可表达岛上的107个鸟巢中合成了企鹅遗骸和鸟粪的200多个日期(包括91个新日期)，以研究企鹅种群规模的动态以及该岛在该物种生态史中的作用。结果表明，随着罗斯冰架的消退，阿德利人在∼8.6KYR BP首次殖民于该岛，这是自冰川消融以来罗斯海已知的最早的繁殖地。在∼7-3KYR BP期间，不可表达岛上的重建种群与积冰的变化基本一致，在5.5KYR BP和4.0KYR BP达到相对高峰。在3.5-3.0KYR的短暂下降之后，企鹅群体在3.0KYR-1.5KYR BP之间出现了大幅扩大，这归因于来自斯科特海岸沿线被遗弃的殖民地的移民。在此期间，Terra Nova Bay Polynya的持续效率为不可表达岛屿上企鹅种群的扩大提供了有利条件，该岛屿可能是沿海海冰增加的避难区。如果反复出现的Terra Nova Bay Polynya在未来的气候和环境变化下继续存在，这个居住时间最长的企鹅群落可能会为Adélie企鹅提供宝贵的避难所，就像过去发生的那样。
As a result of climate changes, penguins are predicted to be at risk of losing their breeding habitats. Changes in penguin colony distribution suggest that some colonies have withstood environmental changes better than others, serving as initial post-glacial settlements or refuges in adverse climatic conditions. Here we have synthesized over 200 dates (including 91 new dates) of penguin remains and of guano in 107 ornithogenic profiles from abandoned nests on Inexpressible Island, one of the longest persisting Adélie penguin colonies in Antarctica, to investigate the dynamics of population size and the role of this island in the ecological history of this species. The results indicate that, following the retreat of Ross Ice Shelf, the Adélies first colonized this island at ∼8.6 kyr BP, documenting the earliest known breeding site in the Ross Sea since deglaciation. During ∼7-3 kyr BP the reconstructed population on Inexpressible Island was generally consistent with the change in pack ice, reaching relative peaks at 5.5–5.0 and 4.0–3.5 kyr BP. After brief decline at 3.5–3.0 kyr, substantial enlargement of the penguin colony occurred between 3.0 and 1.5 kyr BP, attributed to the immigration from the abandoned colonies along the Scott Coast. During this time, the persistent efficiency of Terra Nova Bay polynya offered conditions favourable to the expansion of the penguin population on Inexpressible Island, which probably represented a refuge area under increased coastal sea-ice. This longest-dwelling penguin colony may provide a valuable refuge for the Adélie penguin if the recurrent Terra Nova Bay polynya persists under future climatic and environmental changes, as occurred in the past.
登录
查看更多内容
DOI：
--
发表时间：
1987
期刊：
--
影响因子：
--
作者：
C. Baroni;G. Orombelli
通讯作者：
C. Baroni;G. Orombelli
南极洲斯科特海岸新冰期冷却下企鹅的特殊职业
影响因子：
4
作者：
Lianjiao Yang;Yuesong Gao;Qibin Xu;Tao Huang;Wenqing Yang;Zhuding Chu;Yuhong Wang;Jianjun Wang;Liguang Sun;Zhouqing Xie
通讯作者：
Zhouqing Xie
影响因子：
11.6
作者：
通讯作者：
--
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：
Zhu, Renbin
DOI：
10.1002/9780470612262.ch1
发表时间：
2010-01
期刊：
--
影响因子：
--
作者：
A. Perdigão
通讯作者：
A. Perdigão