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Species Listing under Canada’s Species at Risk Act

机译：根据加拿大《濒危物种法》列出的物种

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In a preliminary analysis of listing decisions under Canada’s Species at Risk Act (SARA), Mooers et al. (2007) demonstrated an apparent bias againstmarine and northern species. As a follow-up, we expanded the set of potential explanatory variables, including information on jurisdictional and administrative elements of the listing process, and considered an additional 16 species recommended for listing by SARA’s scientific advisory committee as of 15 August 2006. Logistic model selection based on Akaike differences suggested that species were less likely to be listed if they were harvested or had commercial or subsistence harvesting as an explicitly identified threat; had Department of Fisheries and Oceans (DFO) as a responsible authority (RA); were located in Canada’s north generally, and especially in Nunavut; or were found mostly or entirely within Canada. Subsequent model validation with an independent set of 50 species for which a listing decision was handed down in December 2007 showed an overall misclassification rate of <0.10, indicating reasonable predictive power. In light of these results, we recommend that RAs under SARA adopt a two-track listing approach to address problems of delays arising from extended consultations and the inconsistent use by the RAs of socioeconomic analysis; consider revising SARA so that socioeconomic analysis occurs during decisions about protecting species and their habitats rather than at the listing stage; and maintain an integrated database with information on species’ biology, threats, and agency actions to enable future evaluation of SARA’s impact.
机译：Mooers等人在根据《加拿大物种风险法案》（SARA）对上市决策进行的初步分析中表示。 （2007）证明了对海洋和北部物种的明显偏见。作为后续措施，我们扩展了可能的解释变量集，包括有关上市过程中管辖权和行政要素的信息，并考虑了SARA科学顾问委员会自2006年8月15日起建议将其列入清单的16种。物流模型选择基于赤池的差异表明，如果物种被捕捞或以商业或自给性捕捞作为明确确定的威胁，则该物种被列入清单的可能性较小;拥有渔业和海洋部（DFO）作为负责机构（RA）;一般位于加拿大北部，尤其是努纳武特或大部分或全部在加拿大境内发现。随后的模型验证采用了50个独立物种的集合，并于2007年12月做出了上市决定，该模型的总体错误分类率为<0.10，表明其合理的预测力。根据这些结果，我们建议SARA下的RA采取两轨列出的方法，以解决由于扩展的磋商以及RA对社会经济分析的不一致所引起的延误问题;考虑修订SARA，以便在决定保护物种及其栖息地的过程中而不是在上市阶段进行社会经济分析;并维护一个集成数据库，其中包含有关物种的生物学，威胁和机构行为的信息，以便将来评估SARA的影响。

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