Environmental Alert
(by Robert Stonestreet)
On December 16, 2020, the United States Fish and Wildlife Service (Service) adopted a final regulation to define the term “habitat” for use when designating “critical habitat” areas under the Endangered Species Act (ESA). 85 Fed Reg 81411. The ESA already defines the term “critical habitat,” which in general means areas designated as essential to preserve or promote recovery of threatened or endangered species regardless of whether those species are actually present in the area. The term “habitat,” however, is not itself defined in the ESA or pre-existing regulations. As detailed in the Environmental Alert published on August 10, 2020 (available here), the Service proposed two potential “habitat” definitions on August 5, 2020 for public comment. 85 Fed Reg 47333. In the final rulemaking, the Service chose to adopt a “habitat” definition that is markedly different than the two definitions proposed for public comment back in August. The adopted definition reads as follows:
For the purposes of designating critical habitat only, habitat is the abiotic and biotic
setting that currently or periodically contains the resources and conditions necessary to support one or more life processes of a species.
According to the Service, “[a]biotic means derived from non-living sources such as soil, water, temperature, or physical processes” and the term “biotic” means “derived from living sources such as a plant community type or prey species.” The preamble portion of the Federal Register entry notes that the phrase “resources and conditions” is intended to clarify that habitat “is inclusive of all qualities of an area that can make that area important to the species.”
Compare that definition to the two definitions proposed for public comment on August 5, 2020, which appear below:
Primary Proposed Definition: The physical places that individuals of a species depend upon to carry out one or more life processes. …