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Adelie penguin population sees rapid decline: Scientists_我的网站

A |     Canberra, Oct 12 (UNI) Australia's top Antarctic scientists have reported a rapid decline in a population of Adelie penguins.

According to research published by the Australian Antarctic Division (AAD) on Tuesday, a large Adelie population off the East Antarctic coast has declined by 43 per cent over the last decade.

Ecologists from the AAD, led by Louise Emmerson and Colin Southwell, surveyed 52 islands along the 100-km coastline.

They found the number of occupied nests fell from 176,622 to 99,946 in that period.
Their findings are contrary to other Adelie penguin populations in east Antarctica where numbers have been stable.

The most widespread penguin species, the Adelie is found along the entire Antarctic coast. Models had predicted the particular population observed by the AAD would continue to grow.

Researchers concluded a change in environmental conditions was the cause of the decline.

"We think this population decline was initially triggered by five years of extensive summer sea ice adjacent to the colony in the mid-2000s, which hampered access to the adults' foraging areas and saw virtually no chicks survive," Emmerson said in a media release.

"The frequency of these unfavorable breeding conditions subsequently remained high, and fledgling survival also began to decrease. These two processes together resulted in a more rapid population decline than would be expected if they had been acting in isolation."

She warned that the smaller the population becomes the harder it will be for individuals to survive.

"It may be that the old adage of safety in numbers is playing out for the fledglings in the vast and harsh Southern Ocean, although exactly why and how needs further investigation," Emmerson said.
UNI/XINHUA ING。

B |     一张方桌，几条板凳，和老百姓围坐交谈，这是习近平总书记在基层调研时经常出现的场景。         　　山村的院坝上，边疆民居的屋檐下，村寨的凉亭里，林场职工的院落中......习近平总书记与干部群众促膝长谈，留下了人民领袖与人民心贴心的温暖画面。

C |          　　“把屁股端端地坐在老百姓的这一面”。一条板凳，朴素无华，却在岁月长河里，见证了我们党坚持为人民出政绩、以实干出政绩的不变初心。         　　新征程上，只要深深植根人民、紧紧依靠人民、不断造福人民，我们党就能拥有任何风浪都动摇不了的坚实根基，就能接续创造出无愧于时代和人民的新业绩。         　　总监制丨王涵          　　监制丨马丽君          　　制片人丨张伟浩          　　编导丨赵言言          　　记者丨杨海灵 王延均          　　摄像丨陈雷 张戍强          　　配音丨黎春          　　编辑丨李璐 刘玉玉 崔杨鑫 潘哲辉 官真 樊振泽 周帆          　　统筹丨王萧宇 毛卉 刘霄 遇剑 金伊结 雷津铭          　　协拍丨总台河北总站 总台湖南总站 【编辑:刘阳禾】。

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Published on:03:46:54