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Climate Change May Actually Help Penguins 气候变暖可能有助于企鹅生存
It’s time to go again to the A Moment of Science mailbag. A listener writes: Dear A Moment of Science,I know that climate change is making life difficult for polar bears and other cold climate creatures. But is it possible that some animals actually benefit from climate change?
又到了“科学一刻”的信箱时间。一位听众来信写到：亲爱的“科学一刻”栏目，我了解气候变化正给北极熊及其他寒带生物的生活造成困难。但是有没有可能，有些动物事实上正从中受益呢？
Penguins And Climate Change
企鹅与气候变化
Actually, yes. In fact, one study found that for a colony of Adélie penguins on Beaufort Island south of New Zealand, climate change has been a boon. Over the past sixty years, as temperatures have risen and glaciers retreated on the island, the bird colony increased by eightyfour percent, from 35,000 breeding pairs to 64,000 breeding pairs. Why? Because the glaciers’ retreat has revealed more bare ground where the penguins like to nest.
事实上，正是如此。一份研究显示，对位于新西兰南部博福特岛上的一个阿德利企鹅的种群而言，气候的变化已为它们带来好消息。在过去的六十年间，随着气温上升及大陆冰川后撤，这个鸟类种群的繁殖数目由35,000对增长到64,000对。原因何在？因为冰川的溶解反而为企鹅提供了更多赖以筑巢的*露地表。
Now, it’s important to note that this may be an isolated and relatively rare case. Some studies have shown that other colonies of Adélie penguins have shrunk over the past few decades. And other animals, most famously polar bears, are defini