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Relative costs of conserving threatened species across taxonomic groups

机译：保护跨越分类群体的威胁物种的相对成本

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摘要

Bias toward legally protecting and prioritizing charismatic taxonomic groups, such as mammals and birds, and against others, such as insects and plants, is well documented. However, the relative costs of conserving various taxonomic groups and the potential of these costs to interact with existing biases have been much less explored. We analyzed conservation programs across more than 2,000 species in 3 countries to investigate the costs of conserving species within taxonomic groups and how these costs might affect conservation planning. For each data set, we tested for differences in mean annual cost among taxonomic groups. For the data set from the United States, recovery plans differed in duration, so we also tested for differences in total costs among taxonomic groups. Although the costs for individual species varied widely, there were strong international consistencies. For example, mammals cost 8-26 times more on average to conserve than plants and 13-19 times more to conserve than aquatic invertebrates. On average, bird species cost 5-30 times more to conserve than plants and 6-14 times more to conserve than aquatic invertebrates. These cost differences could exacerbate unequal resource allocation among taxonomic groups such that more charismatic groups both receive more attention and require more resources, leading to neglect of other taxonomic groups.
机译：偏向于法律保护和优先考虑涉及哺乳动物和鸟类的魅力分类群，以及昆虫和植物等哺乳动物和鸟类，如昆虫和植物。然而，保护各种分类群和这些成本与现有偏差互动的潜力的相对成本得到了很少的探索。我们在3个国家分析了超过2,000种物种的保护计划，以调查分类群体中保护物种以及这些成本如何影响保护计划。对于每个数据集，我们测试了分类组中的平均年度成本的差异。对于来自美国的数据集，恢复计划的持续时间差异，因此我们还在分类组中的总成本进行了测试。虽然个别种类的成本广泛多样化，但有强有力的国际浓度。例如，哺乳动物平均成本8-26倍，超过植物，而不是水生无脊椎动物的时间更多的时间。平均而言，鸟类比植物施加5-30倍，比水生无脊椎动物施加6-14倍。这些成本差异可以加剧分类学团体中不等资源分配，使得更多的魅力群体都会得到更多的关注，并需要更多的资源，导致忽视其他分类群。

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