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极地环境与全球变化安徽省重点实验室报告会

报告地点: 
理化大楼10014
报告时间: 
2017-07-11 15:00
报告人: 
Steven D. Emslie教授
报告人简介: 
University of North Carolina at Wilmington USA
报告题目: 
Ancient Adelie Penguin mummies and supercolonies: using stable isotopes to investigate penguin movements and dietary shifts during the Holocene in the Ross Sea, Antarctica
报告内容简介: 

In this presentation, Dr. Steven Emslie will present new discoveries on the paleohistory of Adelie Penguins in the Ross Sea. Both bulk and compound-specific stable isotope analyses are applied to investigate population movements and dietary shifts of penguins throughout the Holocene, especially during a climatic event that occurred at ~2000 B.P. At that time, Adelie penguins shifted their colonies from the southern to the northern Ross Sea, resulting in a large 'supercolony' at Cape Adare. In addition, a new analysis of penguin mummies that date from over 45, 000 years old to the present provide information on stable isotopes in multiple tissues (skin, feather, bone, and toenail) for the first time in an avian species.