圣诞莓警告

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图片来源:美国地质调查局

圣诞莓的鲜红色浆果和翠绿色叶子可能看起来非常喜庆。但外表可能具有欺骗性:用这种植物装饰房屋很可能弊大于利。“圣诞莓(Schinus terebinthifolius)与毒葛和毒橡树属于同一植物科(漆树科),”美国地质调查局(USGS)的威廉·格雷格说。“它的叶子、花朵和果实会产生化学物质,刺激易感人群(通常是不知情的人)的皮肤和呼吸道。”即使在户外,圣诞莓(右图),也称为巴西胡椒木,也一直在造成麻烦。自从这种藤蔓状树木首次从巴西引入佛罗里达州以来,在一个世纪的时间里,它已经入侵了该州南部约70万英亩的土地。在那里,以及在亚利桑那州、加利福尼亚州和夏威夷州,茂密的圣诞莓灌木丛已经取代了当地的植物和动物。事实上,到 1980 年代,圣诞莓已经获得了“佛罗里达大沼泽地最严重的外来植物威胁”这一可疑的称号。控制这种外来物种的努力仍在继续。与此同时,美国地质调查局建议不要将其引入您的家中。

Kate Wong is an award-winning science writer and senior editor at 大众科学 focused on evolution, ecology, anthropology, archaeology, paleontology and animal behavior. She is fascinated by human origins, which she has covered for more than 25 years. Recently she has become obsessed with birds. Her reporting has taken her to caves in France and Croatia that Neandertals once called home, to the shores of Kenya's Lake Turkana in search of the oldest stone tools in the world, to Madagascar on an expedition to unearth ancient mammals and dinosaurs, to the icy waters of Antarctica, where humpback whales feast on krill, and on a "Big Day" race around the state of Connecticut to find as many bird species as possible in 24 hours. Kate is co-author, with Donald Johanson, of Lucy's Legacy: The Quest for Human Origins. She holds a bachelor of science degree in biological anthropology and zoology from the University of Michigan. Follow Wong on X (formerly Twitter) @katewong

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