气候变化威胁十物种:冰架破裂殃及企鹅幼仔(3)
3.小丑鱼藏身之处减少
小丑鱼藏身之处减少(图片提供:Your Shot user Debi Hanshaw )
IUCN的报告称,不久之后,我们可能就无法在海洋中发现小丑鱼的身影。由于全球气候变暖导致珊瑚礁衰退,这些可爱的小生灵正遭受栖息地不断减少的厄运。小丑鱼借助带刺的海葵护身,在珊瑚礁上繁衍生息的海葵能够帮助小丑鱼躲避捕食者。
由于不断上升的水温导致珊瑚大面积白化——珊瑚失去共生藻类并最终走向死亡——小丑鱼的生存面临威胁。更少的活珊瑚意味着更少的海葵,小丑鱼的藏身之处也随之减少。除此之外,大气中不断上升的二氧化碳水平致使海水酸度提高,导致小丑鱼用于返回保护性海葵所在地的化学信号受到阻隔。
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