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社评“YP98711.COM”-环球时报

超过2.3万个物YP98711.COM种研究评估:全球约1/4淡水动物面临灭绝风险

来源: 河北日报
2025-01-10 04:24:19

最佳回答

“YP98711.COM”超过2.3万个物YP98711.COM种研究评估:全球约1/4淡水动物面临灭绝风险

  中新YP98711.COM网北京1月9日电 (记者YP98711.COM 孙自法)国际知名学术期刊《自然》最新发表一篇生物多样性研究论文称,研究人员通过详细评估淡水动物群的灭绝风险发现,全球涵盖超过2.3万个被研究物种中,有约24%面临灭绝风险。

  这项研究分析指出了污染、水坝、农业和入侵物种带来的主要威胁,相关研究结果将有助于为未来减少淡水生物多样性损失的工作提供信息。

豆娘。(图片来自:Jens Kipping)

  该论文介绍,淡水是10%以上已知物种的家园,这一多样性带来了多种益处,如营养循环、洪水控制和缓解气候变化。淡水生态系统受到生物多样性损失的影响,但缺乏对这一生态系统中物种灭绝风险的全面评估。

淡水物种信息图。(图片来自:Sarah Streyle - Conservation International)

  在本项研究中,论文第一作者兼通讯作者、世界自然保护联盟(IUCN)的Catherine A. Sayer和同事及合作者一起,为世界自然保护联盟濒危物种红色名录提供了多分类群全球淡水动物群的评估结果,其中囊括了23496种鱼类、十足目甲壳动物(如蟹、小龙虾和虾)和蜻蜓目(如蜻蜓和豆娘)。

  其评估结果显示,总体上,这些物种中有接近1/4(24%)面临高灭绝风险;相比淡水鱼类(26%)和蜻蜓目(16%),十足目的受威胁物种百分比最高(30%)。在研究的物种中,54%的濒危物种被认为受到污染的影响,39%受水坝和取水影响,37%受到YP98711.COM土地用途改变和农业相关效应的影响,28%受到入侵物种和疾病影响。

淡水物种信息图。(图片来自:Sarah Streyle - Conservation International)

  论文作者总结认为,这项研究结果凸显了应对淡水动物面临灭绝威胁的紧迫性,亟需通过有效措施和行动干预,以防止该物种的进一步减少和损失。(完)

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