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A case study in applying the IUCN regional guidelines for national red lists and justifications for their modification

机译：将自然保护联盟的区域指南应用于国家红色名录及其修改依据的案例研究

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摘要

The World Conservation Union (IUCN) published guidelines to apply the criteria developed for global red lists at subglobal levels. So far only a few national red lists have been prepared according to these regional guidelines. We present a procedure based on the regional guidelines that was developed for the most recent red list of breeding birds in. Switzerland. Special attention was given to step 2 of the IUCN regional guidelines, which consists of adapting categories according to an assessment of the extent to which extinction risk of the national population is affected by populations in neighboring countries. To avoid subjective assessments we formalized this "up- and downgrading" procedure by defining rules to answer the questions asked in the regional guidelines. Some modifications to the assessment procedure were introduced to account for the specific situation of applying it to birds as a very mobile group and Switzerland as a small country. The up- and downgrading procedure resulted in a change in category for 49 of the 195 bird species assessed. Overall, 9 species were upgraded, 21 species were downgraded by one category, and 19 species were downgraded by two categories. Formalizing step 2 allowed consistent application of the regional guidelines for all species and will make future revisions of the national red list and comparisons between different lists easier.
机译：世界自然保护联盟（IUCN）发布了准则，以将为亚红色级别的全球红色清单制定的标准应用。到目前为止，根据这些地区指南仅编制了一些国家红名单。我们提出了一个基于区域性准则的程序，该准则是针对瑞士最新的繁殖鸟类红色清单制定的。特别关注了自然保护联盟区域准则的第2步，该步骤包括根据对邻国人口对本国人口灭绝风险的影响程度进行评估来调整类别。为了避免进行主观评估，我们通过定义规则以回答区域准则中提出的问题来正式化此“上级和下级”程序。引入了对评估程序的一些修改，以说明将其作为非常机动的团体和作为小国的瑞士应用于鸟类的具体情况。升级和降级程序导致所评估的195种鸟类中49种的类别发生了变化。总体而言，升级了9种，将21种降低了一个类别，将19种降级了两个类别。正式的步骤2允许对所有物种一致地应用区域准则，并且将使将来对国家红色名录的修订以及不同清单之间的比较变得容易。

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