Environment ·
历经12年调查 马达加斯加发现七个钻石蛙新物种
一项结合博物馆DNA与新田野调查的12年分类学研究,确认了马达加斯加钻石蛙此前未被识别的七个新物种,使Rhombophryne属已知物种总数达到27个。
本文由AI根据下方引用的来源综合生成。
研究人员正式描述了七个来自马达加斯加的钻石蛙新物种,解决了一个持续十多年的分类学难题。这项研究成果于8月3日发表在开放获取期刊《Vertebrate Zoology》上,使Rhombophryne属公认物种总数达到27个。
该项目依靠一种研究人员称之为'博物馆组学'的技术:从自然历史博物馆保存的百年标本中提取并测序DNA,并将其与野外采集的青蛙遗传物质进行比较。结合对体型的细致研究和每个物种独特叫声的录音,这种方法终于让科学家能够将旧物种名称与正确的遗传谱系匹配起来,而这种不匹配多年来一直困扰着分类工作。
研究团队十二年多前首次遇到不符合任何已知描述的青蛙,但直到历史标本的DNA测序变得更加可靠,他们才有工具确认其身份。马达加斯加已被公认为世界上生物多样性最丰富、也最受威胁的栖息地之一,这一发现凸显了该岛可能仍有大量两栖动物多样性未被记录,保护主义者表示,随着该岛森林砍伐持续,这类信息对于优先保护栖息地至关重要。
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