The U.S. Fish and Wildlife Service (USFWS) established a priority ranking system in 1983 to guide expenditure allocations for implementing recovery plans. Priorities were intended to be based on factors such as magnitude and immediacy of threat as well as distinctiveness of gene pools. We examined what predicts expenditures for fish taxa listed under the Endangered Species Act and managed by the USFWS. Multiple log-linear regressions on combined state and federal expenditures for listed species for each fiscal year from 2012 to 2017 indicated that expenditures varied between USFWS legacy regions, and increased with species geographic range and if a species has been propagated in captivity or litigated. If a species is litigated, the corresponding expected increase in expenditures ranges from 166% to 606% depending on the year. If a species is propagated, the corresponding increase in expenditures ranges from 142% to 494% depending on the year. We recommend that the USFWS evaluate the priority ranking system in the context of litigation, propagation, and legacy region being predictors of expenditures.

中文翻译：

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美国鱼类和野生动物管理局管理的鱼类分类群的濒危物种法案支出由诉讼、圈养繁殖和地区预测

美国鱼类和野生动物管理局 (USFWS) 于 1983 年建立了优先排序系统，以指导实施恢复计划的支出分配。优先级旨在基于威胁的规模和即时性以及基因库的独特性等因素。我们检查了根据《濒危物种法》列出并由 USFWS 管理的鱼类分类群的预测支出。对 2012 年至 2017 年每个财政年度所列物种的州和联邦综合支出的多重对数线性回归表明，USFWS 遗产区域之间的支出不同，并且随着物种地理范围以及物种在圈养或诉讼中繁殖而增加。如果对一个物种提起诉讼，则相应的预期支出增长幅度从 166% 到 606% 不等，具体取决于年份。如果繁殖一个物种，则相应的支出增加幅度从 142% 到 494% 不等，具体取决于年份。我们建议 USFWS 在诉讼、传播和作为支出预测因素的遗留区域的背景下评估优先级排序系统。