ESR 30:191-192 (2016)  -  DOI: https://doi.org/10.3354/esr00742

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What is a ‘significant portion’ of a range? Reply to Nelson et al. (2016)

Robin S. Waples1,*, Peter B. Adams2, James A. Bohnsack3, Barbara L. Taylor4

1Northwest Fisheries Science Center, 2725 Montlake Blvd. East, Seattle, WA 98112, USA
2Southwest Fisheries Science Center, 110 Shaffer Road, Santa Cruz, CA 95060, USA
3Southeast Fisheries Science Center, 75 Virginia Beach Drive, Miami, FL 33149, USA
4Southwest Fisheries Science Center, 8604 La Jolla Shores Drive, La Jolla, CA 92037, USA
*Corresponding author:

ABSTRACT: Contrary to the claim by Nelson et al. (2016; Endang Species Res 30:187–190), no court has rejected the biological framework we proposed for interpreting the ‘significant portion of its range’ (SPOIR) language in the US Endangered Species Act. The relative importance placed on current vs. historical range during implementation will be important in determining the success of the new ESA SPOIR policy.


KEY WORDS: Endangered species · Risk analysis · Policy · Anthropocentric


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Cite this article as: Waples RS, Adams PB, Bohnsack JA, Taylor BL (2016) What is a ‘significant portion’ of a range? Reply to Nelson et al. (2016). Endang Species Res 30:191-192. https://doi.org/10.3354/esr00742

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