The median number of individuals required for recovery under U.S. Endangered Species Act recovery plans is 2,400, exceeding species' abundances at the time of listing for 93% of species.
Sources
- how is recovery defined by the U.S. Endangered Species Act? (pubs.usgs.gov)
- https://bioone.org/journals/bioscience/volume-62/issue-7/bio.2012.62.7.7/By-the-Numbers--How-is-Recovery-Defined-by-the/10.1525/bio.2012.62.7.7.short (bioone.org)
- https://academic.oup.com/bioscience/article/62/7/646/243343 (academic.oup.com)
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