White-furred animals are in danger of dying out because climate change is causing a fall in snow cover, leaving them exposed and vulnerable, a new study suggests.
一项新研究指出,白毛动物正面临灭绝的危险,因为气候变化导致冰雪覆盖范围减少,从而让白毛动物难以藏身、易受攻击。
Scientists in Poland have been following the worrying case of the white-coated weasel, which sheds its tawny covering in the winter for a milky coat allowing it to blend effortlessly into its icy environment.
波兰的科学家们一直在跟踪调查白鼬这种令人担忧的状况。白鼬在冬天会褪去黄褐色的皮毛,长出雪白皮毛,以便轻松地融入冰雪环境中。
But researchers have discovered that between 1997 and 2007 the number of days with permanent snow cover in Białowieża Forest, Poland, halved, from 80 to 40.
但是研究人员发现,1997年至2007年间,波兰比亚沃维耶扎原始森林被长期冰雪覆盖的时间从80天缩短到了40天。
It means that the little creatures are being caught out in a completely unsuitable environment, where they are easy prey for predators like foxes and crows.
这意味着这种小动物将和环境格格不入,容易成为狐狸和乌鸦等捕食者的猎物。
The team at the Polish Academy of Sciences found that on days when there was little winter snow cover, the number of white-coated weasels they managed to capture fell to as low as 20 percent of the total, suggesting the rest had been killed.
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