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Wolf Delisting Challenges Demonstrate Need for an Improved Framework for Conserving Intraspecific Variation under the Endangered Species Act.
BioScience ( IF 10.1 ) Pub Date : 2020-10-29 , DOI: 10.1093/biosci/biaa125
Carlos Carroll 1 , Daniel J Rohlf 2 , Bridgett M vonHoldt 3 , Adrian Treves 4 , Sarah A Hendricks 5
Affiliation  

Abstract Recent advances in genomics have increased our understanding of geographic patterns of intraspecific variation and the importance of this variation in enhancing species’ potential to adapt to novel threats. However, as part of an effort to limit the scope of the Endangered Species Act (ESA), the US government has proposed the removal of the gray wolf from the list of protected species on the basis of a claim that the statute permits a species to be declared recovered given the existence of a single presently secure population. We rebut this interpretation and propose a framework for the conservation of adaptive potential that builds on current agency practice in delineating subspecific recovery units and reconciles the definition of significance in the statute's “distinct population segment” and “significant portion of range” clauses. Such a coordinated policy would enhance the ESA's effectiveness in stemming loss of biodiversity in the face of climate change and other factors altering Earth's ecosystems.

中文翻译:

Wolf 除名挑战表明需要根据《濒危物种法》改进保护种内变异的框架。

摘要 基因组学的最新进展增加了我们对种内变异的地理模式以及这种变异在增强物种适应新威胁的潜力方面的重要性的理解。然而,作为限制濒危物种法案 (ESA) 范围的努力的一部分,美国政府提议将灰狼从受保护物种名单中删除,理由是该法案允许一个物种鉴于存在一个目前安全的人口,宣布恢复。我们驳斥了这种解释,并提出了一个保护适应性潜力的框架,该框架建立在当前机构在划定亚特定恢复单元方面的实践,并协调了法规“不同人口部分”和“范围的重要部分”条款中的重要性定义。
更新日期:2020-10-29
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