气候变化威胁十物种:冰架破裂殃及企鹅幼仔(9)
9.考拉生存构成威胁
考拉生存构成威胁(图片提供:Anne Kaiser, National Geographic Stock
根据IUCN的报告,不断上升的大气二氧化碳水平导致澳大利亚桉树树叶蛋白质营养成分减少,同时提高味道极差的丹宁酸含量。这意味着只以桉树叶为食的考拉不得不吃掉更多树叶,才能避免被饿死的命运。除此之外,由于澳大利亚的高温和干旱变得更为普遍,由此引发的数量更多的野火也会对这种标志性有袋动物的生存构成威胁。
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