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Relative Conservation Status of Bird Orders With Special Attention to Raptors
Frontiers in Ecology and Evolution ( IF 3 ) Pub Date : 2020-11-27 , DOI: 10.3389/fevo.2020.593941
Christopher J. W. McClure , Brian W. Rolek

Birds, especially raptors, play important roles in ecosystems. We examine the International Union for the Conservation of Nature’s (IUCN) Red List to determine which orders of birds have proportionally more or fewer species listed as threatened or declining compared to the Class-wide average. We further examine whether raptors are more threatened or declining than non-raptors and whether the order Accipitriformes is particularly threatened even when excluding Old World vultures – which are especially imperiled. Our results reveal heterogeneity across bird orders in proportions of threatened and declining species, with some orders having greater or lower proportions than the Class-wide proportion. We also show that the proportions of threatened species in each order are correlated with the proportion of declining species. Raptors have both greater proportions of threatened and declining species than non-raptors and Accipitriformes has greater-than-average proportions of threatened and declining species, even if Old World vultures are removed from the analysis. Our results should serve as a framework for discussion of the relative conservation status of bird orders, especially raptors, which are in need of increased conservation attention.

中文翻译:

鸟类的相对保护状况,特别关注猛禽

鸟类,尤其是猛禽,在生态系统中发挥着重要作用。我们检查了国际自然保护联盟 (IUCN) 的红色名录,以确定与全类平均水平相比,哪些鸟类目中被列为受威胁或减少的物种按比例增加或减少。我们进一步研究了猛禽是否比非猛禽更受威胁或衰退,以及鹰目目是否特别受到威胁,即使排除旧世界秃鹰——它们尤其受到威胁。我们的结果揭示了受威胁和下降物种比例的鸟类命令的异质性,一些命令的比例高于或低于全类比例。我们还表明,每个顺序中受威胁物种的比例与衰退物种的比例相关。即使从分析中去除旧世界秃鹰,猛禽的受威胁和衰退物种的比例都高于非猛禽,而鹰形目的受威胁物种和衰退物种的比例也高于平均水平。我们的结果应作为讨论鸟类目(尤其是猛禽)的相对保护状况的框架,它们需要得到更多的保护。
更新日期:2020-11-27
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