Three in four undescribed plant species are threatened with extinction.
Three in four undescribed plant species are threatened with extinction.
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四分之三未描述的植物物种面临灭绝的威胁。
作者：
Matilda J. M. Brown;S. Bachman;E. N. Nic Lughadha
成千上万的植物物种仍然不为科学所知，大多数是范围有限和/或罕见的-这两个因素增加了灭绝的风险。在这里，我们表明，超过75%的物种描述后，2020年将有资格作为威胁，如果评估为世界自然保护联盟红色名录。我们建议新描述的物种被假定为受到威胁，并鼓励分类学家在描述时与评估员合作，使用IUCN红色名录类别和标准正式评估新物种的灭绝风险。
Many thousands of plant species remain unknown to science, most being range-restricted and/or rare – both factors that increase extinction risk. Here, we show that more than 75% of species described after 2020 would qualify as threatened if assessed for the IUCN Red List. We recommend that newly described species are assumed to be threatened and encourage taxonomists to partner with assessors at the time of description to formally evaluate the extinction risk of new species using the IUCN Red List Categories and Criteria.