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Drones reveal huge colonies of 1.5 million penguins on islands | |
admin | |
2018-03-06 | |
发布年 | 2018 |
语种 | 英语 |
国家 | 国际 |
领域 | 地球科学 |
正文(英文) |
TWO huge colonies of Adélie penguins have been discovered hiding in plain sight on Antarctic islands. Adélie penguins (Pygoscelis adeliae) were known to nest on the Danger Islands, near the tip of the west Antarctic Peninsula. But only in 2014 did satellite images reveal large areas stained with guano. A team led by Heather Lynch of Stony Brook University in New York has now surveyed the birds, using drones specially adapted for the cold.
AdvertisementThey found 1.5 million Adélie penguins, taking the total number in the world to 8 million (Scientific Reports, doi.org/ck5j). There were also smaller colonies of gentoo and chinstrap penguins. The global population of Adélie penguins was already increasing, for unknown reasons. However, numbers have fallen around the west Antarctic Peninsula, which has warmed rapidly in recent decades because of climate change. An east Antarctic colony, on Petrel Island, has suffered two bad breeding seasons in the last decade. This article appeared in print under the headline “Secret penguins revealed by drones” More on these topics: |
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来源平台 | NewScientist |
文献类型 | 新闻 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/130000 |
专题 | 地球科学 |
推荐引用方式 GB/T 7714 | admin. Drones reveal huge colonies of 1.5 million penguins on islands. 2018. |
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